class TrackingWindow(QMainWindow):
"""
Main window of the application.
This class is responsible for the global data structures too.
:IVariables:
undo_stack : `QUndoStack`
Undo stack. All actions that can be undone should be pushed on the stack.
_project : `project.Project`
Project object managing the loaded data
_data : `tracking_data.TrackingData`
Data object keeping track of points and cells
toolGroup : `QActionGroup`
Group of actions to be enabled only when actions can be taken on images
previousSelAct : `QActionGroup`
Actions enabled when points are selected in the previous pane
currentSelAct : `QActionGroup`
Actions enabled when points are selected in the current pane
projectAct : `QActionGroup`
Actions to enable once a project is loaded
_previousScene : `tracking_scene.TrackingScene`
Object managing the previous pane
_currentScene : `tracking_scene.LinkedTrackingScene`
Object managing the current pane
"""
def __init__(self, *args, **kwords):
QMainWindow.__init__(self, *args)
self.undo_stack = QUndoStack(self)
self.ui = Ui_TrackingWindow()
self.ui.setupUi(self)
self._project = None
self._data = None
self.toolGroup = QActionGroup(self)
self.toolGroup.addAction(self.ui.actionAdd_point)
self.toolGroup.addAction(self.ui.action_Move_point)
self.toolGroup.addAction(self.ui.actionAdd_cell)
self.toolGroup.addAction(self.ui.actionRemove_cell)
self.toolGroup.addAction(self.ui.action_Pan)
self.toolGroup.addAction(self.ui.actionZoom_out)
self.toolGroup.addAction(self.ui.actionZoom_in)
self.previousSelAct = QActionGroup(self)
self.previousSelAct.addAction(self.ui.actionCopy_selection_from_Previous)
self.previousSelAct.addAction(self.ui.actionDelete_Previous)
self.previousSelAct.setEnabled(False)
self.currentSelAct = QActionGroup(self)
self.currentSelAct.addAction(self.ui.actionCopy_selection_from_Current)
self.currentSelAct.addAction(self.ui.actionDelete_Current)
self.currentSelAct.setEnabled(False)
self.projectAct = QActionGroup(self)
self.projectAct.addAction(self.ui.action_Next_image)
self.projectAct.addAction(self.ui.action_Previous_image)
self.projectAct.addAction(self.ui.actionAdd_point)
self.projectAct.addAction(self.ui.action_Move_point)
self.projectAct.addAction(self.ui.action_Pan)
self.projectAct.addAction(self.ui.actionAdd_cell)
self.projectAct.addAction(self.ui.actionRemove_cell)
self.projectAct.addAction(self.ui.action_Change_data_file)
self.projectAct.addAction(self.ui.actionNew_data_file)
self.projectAct.addAction(self.ui.actionZoom_out)
self.projectAct.addAction(self.ui.actionZoom_in)
self.projectAct.addAction(self.ui.actionSave_as)
self.projectAct.addAction(self.ui.action_Fit)
self.projectAct.addAction(self.ui.actionZoom_100)
self.projectAct.addAction(self.ui.actionMerge_points)
self.projectAct.addAction(self.ui.actionCopy_from_previous)
self.projectAct.addAction(self.ui.actionCopy_from_current)
self.projectAct.addAction(self.ui.actionReset_alignment)
self.projectAct.addAction(self.ui.actionAlign_images)
self.projectAct.addAction(self.ui.actionSelectPreviousAll)
self.projectAct.addAction(self.ui.actionSelectPreviousNew)
self.projectAct.addAction(self.ui.actionSelectPreviousNone)
self.projectAct.addAction(self.ui.actionSelectPreviousNon_associated)
self.projectAct.addAction(self.ui.actionSelectPreviousAssociated)
self.projectAct.addAction(self.ui.actionSelectPreviousInvert)
self.projectAct.addAction(self.ui.actionSelectCurrentAll)
self.projectAct.addAction(self.ui.actionSelectCurrentNew)
self.projectAct.addAction(self.ui.actionSelectCurrentNone)
self.projectAct.addAction(self.ui.actionSelectCurrentNon_associated)
self.projectAct.addAction(self.ui.actionSelectCurrentAssociated)
self.projectAct.addAction(self.ui.actionSelectCurrentInvert)
self.projectAct.addAction(self.ui.actionEdit_timing)
self.projectAct.addAction(self.ui.actionEdit_scales)
self.projectAct.addAction(self.ui.actionCompute_growth)
self.projectAct.addAction(self.ui.actionClean_cells)
self.projectAct.addAction(self.ui.actionGotoCell)
self.projectAct.setEnabled(False)
current_sel_actions = [self.ui.actionSelectCurrentAll,
self.ui.actionSelectCurrentNew,
self.ui.actionSelectCurrentNone,
self.ui.actionSelectCurrentInvert,
'-',
self.ui.actionSelectCurrentNon_associated,
self.ui.actionSelectCurrentAssociated,
self.ui.actionCopy_selection_from_Previous
]
previous_sel_actions = [self.ui.actionSelectPreviousAll,
self.ui.actionSelectPreviousNew,
self.ui.actionSelectPreviousNone,
self.ui.actionSelectPreviousInvert,
'-',
self.ui.actionSelectPreviousNon_associated,
self.ui.actionSelectPreviousAssociated,
self.ui.actionCopy_selection_from_Current
]
self._previousScene = TrackingScene(self.undo_stack, self.ui.actionDelete_Previous,
previous_sel_actions, self)
self._currentScene = LinkedTrackingScene(self._previousScene, self.undo_stack,
self.ui.actionDelete_Current, current_sel_actions,
self)
self._previousScene.hasSelectionChanged.connect(self.previousSelAct.setEnabled)
self._currentScene.hasSelectionChanged.connect(self.currentSelAct.setEnabled)
self._previousScene.realSceneSizeChanged.connect(self.sceneSizeChanged)
self._currentScene.realSceneSizeChanged.connect(self.sceneSizeChanged)
self._previousScene.zoomIn[QPointF].connect(self.zoomIn)
self._currentScene.zoomIn.connect(self.zoomIn)
self._previousScene.zoomOut[QPointF].connect(self.zoomOut)
self._currentScene.zoomOut.connect(self.zoomOut)
self.ui.previousData.setScene(self._previousScene)
self.ui.currentData.setScene(self._currentScene)
self.ui.previousData.setDragMode(QGraphicsView.ScrollHandDrag)
self.ui.currentData.setDragMode(QGraphicsView.ScrollHandDrag)
#self.ui.previousData.setCacheMode(QGraphicsView.CacheBackground)
#self.ui.currentData.setCacheMode(QGraphicsView.CacheBackground)
# Redefine shortcuts to standard key sequences
self.ui.action_Save.setShortcut(QKeySequence.Save)
self.ui.actionSave_as.setShortcut(QKeySequence.SaveAs)
self.ui.action_Open_project.setShortcut(QKeySequence.Open)
self.ui.action_Undo.setShortcut(QKeySequence.Undo)
self.ui.action_Redo.setShortcut(QKeySequence.Redo)
self.ui.action_Next_image.setShortcut(QKeySequence.Forward)
self.ui.action_Previous_image.setShortcut(QKeySequence.Back)
# Connecting undo stack signals
self.ui.action_Undo.triggered.connect(self.undo)
self.ui.action_Redo.triggered.connect(self.redo)
self.undo_stack.canRedoChanged[bool].connect(self.ui.action_Redo.setEnabled)
self.undo_stack.canUndoChanged[bool].connect(self.ui.action_Undo.setEnabled)
self.undo_stack.redoTextChanged["const QString&"].connect(self.changeRedoText)
self.undo_stack.undoTextChanged["const QString&"].connect(self.changeUndoText)
self.undo_stack.cleanChanged[bool].connect(self.ui.action_Save.setDisabled)
# link_icon = QIcon()
# pix = QPixmap(":/icons/link.png")
# link_icon.addPixmap(pix, QIcon.Normal, QIcon.On)
# pix = QPixmap(":/icons/link_broken.png")
# link_icon.addPixmap(pix, QIcon.Normal, QIcon.Off)
# self.link_icon = link_icon
# #self.ui.linkViews.setIconSize(QSize(64,32))
# self.ui.linkViews.setIcon(link_icon)
self._recent_projects_menu = QMenu(self)
self.ui.actionRecent_projects.setMenu(self._recent_projects_menu)
self._recent_projects_act = []
self._projects_mapper = QSignalMapper(self)
self._projects_mapper.mapped[int].connect(self.loadRecentProject)
self.param_dlg = None
# Setting up the status bar
bar = self.statusBar()
# Adding current directory
cur_dir = QLabel("")
bar.addPermanentWidget(cur_dir)
self._current_dir_label = cur_dir
# Adding up zoom
zoom = QLabel("")
bar.addPermanentWidget(zoom)
self._zoom_label = zoom
self.changeZoom(1)
self.loadConfig()
parameters.instance.renderingChanged.connect(self.changeRendering)
self.changeRendering()
def changeRendering(self):
if parameters.instance.use_OpenGL:
self.ui.previousData.setViewport(QGLWidget(QGLFormat(QGL.SampleBuffers)))
self.ui.currentData.setViewport(QGLWidget(QGLFormat(QGL.SampleBuffers)))
else:
self.ui.previousData.setViewport(QWidget())
self.ui.currentData.setViewport(QWidget())
def undo(self):
self.undo_stack.undo()
def redo(self):
self.undo_stack.redo()
def changeRedoText(self, text):
self.ui.action_Redo.setText(text)
self.ui.action_Redo.setToolTip(text)
self.ui.action_Redo.setStatusTip(text)
def changeUndoText(self, text):
self.ui.action_Undo.setText(text)
self.ui.action_Undo.setToolTip(text)
self.ui.action_Undo.setStatusTip(text)
def closeEvent(self, event):
self.saveConfig()
if not self.ensure_save_data("Exiting whith unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to exit?"):
event.ignore()
return
QMainWindow.closeEvent(self, event)
#sys.exit(0)
def loadConfig(self):
params = parameters.instance
self.ui.action_Show_vector.setChecked(params.show_vectors)
self.ui.linkViews.setChecked(params.link_views)
self.ui.action_Show_template.setChecked(parameters.instance.show_template)
self.ui.actionShow_id.setChecked(parameters.instance.show_id)
self.ui.action_Estimate_position.setChecked(parameters.instance.estimate)
self.updateRecentFiles()
params.recentProjectsChange.connect(self.updateRecentFiles)
def updateRecentFiles(self):
for a in self._recent_projects_act:
self._projects_mapper.removeMappings(a)
del self._recent_projects_act[:]
menu = self._recent_projects_menu
menu.clear()
recent_projects = parameters.instance.recent_projects
for i, p in enumerate(recent_projects):
act = QAction(self)
act.setText("&{0:d} {1}".format(i + 1, p))
self._recent_projects_act.append(act)
act.triggered.connect(self._projects_mapper.map)
self._projects_mapper.setMapping(act, i)
menu.addAction(act)
def saveConfig(self):
parameters.instance.save()
def check_for_data(self):
if self._project is None:
QMessageBox.critical(self, "No project loaded",
"You have to load a project before performing this operation")
return False
return True
def loadRecentProject(self, i):
if self.ensure_save_data("Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change project?"):
self.loadProject(parameters.instance.recent_projects[i])
@pyqtSignature("")
def on_action_Open_project_triggered(self):
if self.ensure_save_data("Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change project?"):
dir_ = QFileDialog.getExistingDirectory(self, "Select a project directory",
parameters.instance._last_dir)
if dir_:
self.loadProject(dir_)
def loadProject(self, dir_):
dir_ = path(dir_)
project = Project(dir_)
if project.valid:
self._project = project
else:
create = QMessageBox.question(self, "Invalid project directory",
"This directory does not contain a valid project. Turn into a directory?",
QMessageBox.No, QMessageBox.Yes)
if create == QMessageBox.No:
return
project.create()
self._project = project
self._project.use()
parameters.instance.add_recent_project(dir_)
parameters.instance._last_dir = dir_
if self._data is not None:
_data = self._data
_data.saved.disconnect(self.undo_stack.setClean)
try:
#self._project.load()
self.load_data()
_data = self._project.data
_data.saved.connect(self.undo_stack.setClean)
self._project.changedDataFile.connect(self.dataFileChanged)
self._data = _data
self._previousScene.changeDataManager(self._data)
self._currentScene.changeDataManager(self._data)
self.initFromData()
self.projectAct.setEnabled(True)
except TrackingDataException as ex:
showException(self, "Error while loaded data", ex)
def dataFileChanged(self, new_file):
if new_file is None:
self._current_dir_label.setText("")
else:
self._current_dir_label.setText(new_file)
def initFromData(self):
"""
Initialize the interface using the current data
"""
self.ui.previousState.clear()
self.ui.currentState.clear()
for name in self._data.images_name:
self.ui.previousState.addItem(name)
self.ui.currentState.addItem(name)
self.ui.previousState.setCurrentIndex(0)
self.ui.currentState.setCurrentIndex(1)
self._previousScene.changeImage(self._data.image_path(self._data.images_name[0]))
self._currentScene.changeImage(self._data.image_path(self._data.images_name[1]))
self.dataFileChanged(self._project.data_file)
@pyqtSignature("int")
def on_previousState_currentIndexChanged(self, index):
#print "Previous image loaded: %s" % self._data.images[index]
self.changeScene(self._previousScene, index)
self._currentScene.changeImage(None)
@pyqtSignature("int")
def on_currentState_currentIndexChanged(self, index):
#print "Current image loaded: %s" % self._data.images[index]
self.changeScene(self._currentScene, index)
def changeScene(self, scene, index):
"""
Set the scene to use the image number index.
"""
scene.changeImage(self._data.image_path(self._data.images_name[index]))
@pyqtSignature("")
def on_action_Save_triggered(self):
self.save_data()
@pyqtSignature("")
def on_actionSave_as_triggered(self):
fn = QFileDialog.getSaveFileName(self, "Select a data file to save in", self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
self.save_data(path(fn))
def save_data(self, data_file=None):
if self._data is None:
raise TrackingDataException("Trying to save data when none have been loaded")
try:
self._project.save(data_file)
return True
except TrackingDataException as ex:
showException(self, "Error while saving data", ex)
return False
def load_data(self, **opts):
if self._project is None:
raise TrackingDataException("Trying to load data when no project have been loaded")
try:
if self._project.load(**opts):
log_debug("Data file was corrected. Need saving.")
self.ui.action_Save.setEnabled(True)
else:
log_debug("Data file is clean.")
self.ui.action_Save.setEnabled(False)
return True
except TrackingDataException as ex:
showException(self, "Error while loading data", ex)
return False
except RetryTrackingDataException as ex:
if retryException(self, "Problem while loading data", ex):
new_opts = dict(opts)
new_opts.update(ex.method_args)
return self.load_data(**new_opts)
return False
def ensure_save_data(self, title, reason):
if self._data is not None and not self.undo_stack.isClean():
button = QMessageBox.warning(self, title, reason, QMessageBox.Yes | QMessageBox.Save | QMessageBox.Cancel)
if button == QMessageBox.Save:
return self.save_data()
elif button == QMessageBox.Cancel:
return False
self.undo_stack.clear()
return True
@pyqtSignature("")
def on_action_Change_data_file_triggered(self):
if self.ensure_save_data("Leaving unsaved data", "The last modifications you made were not saved."
" Are you sure you want to change the current data file?"):
fn = QFileDialog.getOpenFileName(self, "Select a data file to load", self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
self._project.data_file = str(fn)
if self.load_data():
self._previousScene.resetNewPoints()
self._currentScene.resetNewPoints()
@pyqtSignature("bool")
def on_action_Show_vector_toggled(self, value):
parameters.instance.show_vector = value
self._currentScene.showVector(value)
@pyqtSignature("bool")
def on_action_Show_template_toggled(self, value):
parameters.instance.show_template = value
@pyqtSignature("bool")
def on_actionShow_id_toggled(self, value):
parameters.instance.show_id = value
@pyqtSignature("")
def on_action_Next_image_triggered(self):
cur = self.ui.currentState.currentIndex()
pre = self.ui.previousState.currentIndex()
l = len(self._data.images_name)
if cur < l-1 and pre < l-1:
self.ui.previousState.setCurrentIndex(pre+1)
self.ui.currentState.setCurrentIndex(cur+1)
@pyqtSignature("")
def on_action_Previous_image_triggered(self):
cur = self.ui.currentState.currentIndex()
pre = self.ui.previousState.currentIndex()
if cur > 0 and pre > 0:
self.ui.previousState.setCurrentIndex(pre-1)
self.ui.currentState.setCurrentIndex(cur-1)
@pyqtSignature("")
def on_copyToPrevious_clicked(self):
self._currentScene.copyFromLinked(self._previousScene)
@pyqtSignature("")
def on_copyToCurrent_clicked(self):
self._previousScene.copyToLinked(self._currentScene)
@pyqtSignature("bool")
def on_action_Estimate_position_toggled(self, value):
parameters.instance.estimate = value
# @pyqtSignature("")
# def on_action_Undo_triggered(self):
# print "Undo"
# @pyqtSignature("")
# def on_action_Redo_triggered(self):
# print "Redo"
@pyqtSignature("bool")
def on_action_Parameters_toggled(self, value):
if value:
from .parametersdlg import ParametersDlg
self._previousScene.showTemplates()
self._currentScene.showTemplates()
#tracking_scene.saveParameters()
parameters.instance.save()
max_size = max(self._currentScene.width(), self._currentScene.height(),
self._previousScene.width(), self._previousScene.height(), 400)
self.param_dlg = ParametersDlg(max_size, self)
self.param_dlg.setModal(False)
self.ui.action_Pan.setChecked(True)
self.ui.actionAdd_point.setEnabled(False)
self.ui.action_Move_point.setEnabled(False)
self.ui.actionAdd_cell.setEnabled(False)
self.ui.actionRemove_cell.setEnabled(False)
self.ui.action_Undo.setEnabled(False)
self.ui.action_Redo.setEnabled(False)
self.ui.action_Open_project.setEnabled(False)
self.ui.actionRecent_projects.setEnabled(False)
self.ui.action_Change_data_file.setEnabled(False)
self.ui.copyToCurrent.setEnabled(False)
self.ui.copyToPrevious.setEnabled(False)
self.param_dlg.finished[int].connect(self.closeParam)
self.param_dlg.show()
elif self.param_dlg:
self.param_dlg.accept()
def closeParam(self, value):
if value == QDialog.Rejected:
parameters.instance.load()
self.ui.actionAdd_point.setEnabled(True)
self.ui.action_Move_point.setEnabled(True)
self.ui.actionAdd_cell.setEnabled(True)
self.ui.actionRemove_cell.setEnabled(True)
self.ui.action_Undo.setEnabled(True)
self.ui.action_Redo.setEnabled(True)
self.ui.action_Open_project.setEnabled(True)
self.ui.actionRecent_projects.setEnabled(True)
self.ui.action_Change_data_file.setEnabled(True)
self.ui.copyToCurrent.setEnabled(True)
self.ui.copyToPrevious.setEnabled(True)
self._previousScene.showTemplates(False)
self._currentScene.showTemplates(False)
self._previousScene.update()
self._currentScene.update()
self.param_dlg = None
self.ui.action_Parameters.setChecked(False)
@pyqtSignature("bool")
def on_actionZoom_in_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.ZoomIn
self._currentScene.mode = TrackingScene.ZoomIn
@pyqtSignature("bool")
def on_actionZoom_out_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.ZoomOut
self._currentScene.mode = TrackingScene.ZoomOut
#def resizeEvent(self, event):
# self.ensureZoomFit()
def ensureZoomFit(self):
if self._data:
prev_rect = self._previousScene.sceneRect()
cur_rect = self._currentScene.sceneRect()
prev_wnd = QRectF(self.ui.previousData.childrenRect())
cur_wnd = QRectF(self.ui.currentData.childrenRect())
prev_matrix = self.ui.previousData.matrix()
cur_matrix = self.ui.currentData.matrix()
prev_mapped_rect = prev_matrix.mapRect(prev_rect)
cur_mapped_rect = cur_matrix.mapRect(cur_rect)
if (prev_mapped_rect.width() < prev_wnd.width() or
prev_mapped_rect.height() < prev_wnd.height() or
cur_mapped_rect.width() < cur_wnd.width() or
cur_mapped_rect.height() < cur_wnd.height()):
self.on_action_Fit_triggered()
@pyqtSignature("")
def on_action_Fit_triggered(self):
prev_rect = self._previousScene.sceneRect()
cur_rect = self._currentScene.sceneRect()
prev_wnd = self.ui.previousData.childrenRect()
cur_wnd = self.ui.currentData.childrenRect()
prev_sw = prev_wnd.width() / prev_rect.width()
prev_sh = prev_wnd.height() / prev_rect.height()
cur_sw = cur_wnd.width() / cur_rect.width()
cur_sh = cur_wnd.height() / cur_rect.height()
s = max(prev_sw, prev_sh, cur_sw, cur_sh)
self.ui.previousData.resetMatrix()
self.ui.previousData.scale(s, s)
self.ui.currentData.resetMatrix()
self.ui.currentData.scale(s, s)
self.changeZoom(s)
def zoomOut(self, point=None):
self.ui.currentData.scale(0.5, 0.5)
self.ui.previousData.scale(0.5, 0.5)
self.changeZoom(self.ui.previousData.matrix().m11())
if point is not None:
self.ui.previousData.centerOn(point)
self.ui.currentData.centerOn(point)
#self.ensureZoomFit()
def zoomIn(self, point=None):
self.ui.currentData.scale(2, 2)
self.ui.previousData.scale(2, 2)
self.changeZoom(self.ui.previousData.matrix().m11())
if point is not None:
self.ui.previousData.centerOn(point)
self.ui.currentData.centerOn(point)
def changeZoom(self, zoom):
self._zoom_label.setText("Zoom: %.5g%%" % (100*zoom))
@pyqtSignature("")
def on_actionZoom_100_triggered(self):
self.ui.previousData.resetMatrix()
self.ui.currentData.resetMatrix()
self.changeZoom(1)
@pyqtSignature("bool")
def on_actionAdd_point_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Add
self._currentScene.mode = TrackingScene.Add
@pyqtSignature("bool")
def on_actionAdd_cell_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.AddCell
self._currentScene.mode = TrackingScene.AddCell
@pyqtSignature("bool")
def on_actionRemove_cell_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.RemoveCell
self._currentScene.mode = TrackingScene.RemoveCell
@pyqtSignature("bool")
def on_action_Move_point_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Move
self._currentScene.mode = TrackingScene.Move
@pyqtSignature("bool")
def on_action_Pan_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Pan
self._currentScene.mode = TrackingScene.Pan
@pyqtSignature("bool")
def on_linkViews_toggled(self, value):
parameters.instance.link_views = value
phor = self.ui.previousData.horizontalScrollBar()
pver = self.ui.previousData.verticalScrollBar()
chor = self.ui.currentData.horizontalScrollBar()
cver = self.ui.currentData.verticalScrollBar()
if value:
phor.valueChanged[int].connect(chor.setValue)
pver.valueChanged[int].connect(cver.setValue)
chor.valueChanged[int].connect(phor.setValue)
cver.valueChanged[int].connect(pver.setValue)
self._previousScene.templatePosChange.connect(self._currentScene.setTemplatePos)
self._currentScene.templatePosChange.connect(self._previousScene.setTemplatePos)
phor.setValue(chor.value())
pver.setValue(cver.value())
else:
phor.valueChanged[int].disconnect(chor.setValue)
pver.valueChanged[int].disconnect(cver.setValue)
chor.valueChanged[int].disconnect(phor.setValue)
cver.valueChanged[int].disconnect(pver.setValue)
self._previousScene.templatePosChange.disconnect(self._currentScene.setTemplatePos)
self._currentScene.templatePosChange.disconnect(self._previousScene.setTemplatePos)
def copyFrom(self, start, items):
if parameters.instance.estimate:
dlg = createForm('copy_progress.ui', None)
dlg.buttonBox.clicked["QAbstractButton*"].connect(self.cancelCopy)
params = parameters.instance
ts = params.template_size
ss = params.search_size
fs = params.filter_size
self.copy_thread = algo.FindInAll(self._data, start, items, ts, ss, fs, self)
dlg.imageProgress.setMaximum(self.copy_thread.num_images)
self.copy_thread.start()
self.copy_dlg = dlg
dlg.exec_()
else:
algo.copyFromImage(self._data, start, items, self.undo_stack)
def cancelCopy(self, *args):
self.copy_thread.stop = True
dlg = self.copy_dlg
dlg.buttonBox.clicked['QAbstractButton*)'].disconnect(self.cancelCopy)
self._previousScene.changeImage(None)
self._currentScene.changeImage(None)
def event(self, event):
if isinstance(event, algo.NextImage):
dlg = self.copy_dlg
if dlg is not None:
dlg.imageProgress.setValue(event.currentImage)
dlg.pointProgress.setMaximum(event.nbPoints)
dlg.pointProgress.setValue(0)
return True
elif isinstance(event, algo.NextPoint):
dlg = self.copy_dlg
if dlg is not None:
dlg.pointProgress.setValue(event.currentPoint)
return True
elif isinstance(event, algo.FoundAll):
dlg = self.copy_dlg
if dlg is not None:
self.cancelCopy()
dlg.accept()
return True
elif isinstance(event, algo.Aborted):
dlg = self.copy_dlg
if dlg is not None:
self.cancelCopy()
dlg.accept()
return True
return QMainWindow.event(self, event)
def itemsToCopy(self, scene):
items = scene.getSelectedIds()
if items:
answer = QMessageBox.question(self, "Copy of points",
"Some points were selected in the previous data window."
" Do you want to copy only these point on the successive images?",
QMessageBox.Yes, QMessageBox.No)
if answer == QMessageBox.Yes:
return items
return scene.getAllIds()
@pyqtSignature("")
def on_actionCopy_from_previous_triggered(self):
items = self.itemsToCopy(self._previousScene)
if items:
self.copyFrom(self.ui.previousState.currentIndex(), items)
@pyqtSignature("")
def on_actionCopy_from_current_triggered(self):
items = self.itemsToCopy(self._currentScene)
if items:
self.copyFrom(self.ui.currentState.currentIndex(), items)
@pyqtSignature("")
def on_actionSelectPreviousAll_triggered(self):
self._previousScene.selectAll()
@pyqtSignature("")
def on_actionSelectPreviousNew_triggered(self):
self._previousScene.selectNew()
@pyqtSignature("")
def on_actionSelectPreviousNone_triggered(self):
self._previousScene.selectNone()
@pyqtSignature("")
def on_actionSelectPreviousNon_associated_triggered(self):
self._previousScene.selectNonAssociated()
@pyqtSignature("")
def on_actionSelectPreviousAssociated_triggered(self):
self._previousScene.selectAssociated()
@pyqtSignature("")
def on_actionSelectPreviousInvert_triggered(self):
self._previousScene.selectInvert()
@pyqtSignature("")
def on_actionSelectCurrentAll_triggered(self):
self._currentScene.selectAll()
@pyqtSignature("")
def on_actionSelectCurrentNew_triggered(self):
self._currentScene.selectNew()
@pyqtSignature("")
def on_actionSelectCurrentNone_triggered(self):
self._currentScene.selectNone()
@pyqtSignature("")
def on_actionSelectCurrentNon_associated_triggered(self):
self._currentScene.selectNonAssociated()
@pyqtSignature("")
def on_actionSelectCurrentAssociated_triggered(self):
self._currentScene.selectAssociated()
@pyqtSignature("")
def on_actionSelectCurrentInvert_triggered(self):
self._currentScene.selectInvert()
def whichDelete(self):
"""
Returns a function deleting what the user wants
"""
dlg = createForm("deletedlg.ui", None)
ret = dlg.exec_()
if ret:
if dlg.inAllImages.isChecked():
return TrackingScene.deleteInAllImages
if dlg.toImage.isChecked():
return TrackingScene.deleteToImage
if dlg.fromImage.isChecked():
return TrackingScene.deleteFromImage
return lambda x: None
@pyqtSignature("")
def on_actionDelete_Previous_triggered(self):
del_fct = self.whichDelete()
del_fct(self._previousScene)
@pyqtSignature("")
def on_actionDelete_Current_triggered(self):
del_fct = self.whichDelete()
del_fct(self._currentScene)
@pyqtSignature("")
def on_actionMerge_points_triggered(self):
if self._previousScene.mode == TrackingScene.AddCell:
old_cell = self._previousScene.selected_cell
new_cell = self._currentScene.selected_cell
if old_cell is None or new_cell is None:
QMessageBox.critical(self, "Cannot merge cells",
"You have to select exactly one cell in the old state "
"and one in the new state to merge them.")
return
try:
if old_cell != new_cell:
self.undo_stack.push(MergeCells(self._data, self._previousScene.image_name, old_cell, new_cell))
else:
self.undo_stack.push(SplitCells(self._data, self._previousScene.image_name, old_cell, new_cell))
except AssertionError as error:
QMessageBox.critical(self, "Cannot merge the cells", str(error))
else:
old_pts = self._previousScene.getSelectedIds()
new_pts = self._currentScene.getSelectedIds()
if len(old_pts) != 1 or len(new_pts) != 1:
QMessageBox.critical(self, "Cannot merge points",
"You have to select exactly one point in the old state "
"and one in the new state to link them.")
return
try:
if old_pts != new_pts:
self.undo_stack.push(ChangePointsId(self._data, self._previousScene.image_name, old_pts, new_pts))
else:
log_debug("Splitting point of id %d" % old_pts[0])
self.undo_stack.push(SplitPointsId(self._data, self._previousScene.image_name, old_pts))
except AssertionError as error:
QMessageBox.critical(self, "Cannot merge the points", str(error))
@pyqtSignature("")
def on_actionCopy_selection_from_Current_triggered(self):
cur_sel = self._currentScene.getSelectedIds()
self._previousScene.setSelectedIds(cur_sel)
@pyqtSignature("")
def on_actionCopy_selection_from_Previous_triggered(self):
cur_sel = self._previousScene.getSelectedIds()
self._currentScene.setSelectedIds(cur_sel)
@pyqtSignature("")
def on_actionNew_data_file_triggered(self):
if self.ensure_save_data("Leaving unsaved data", "The last modifications you made were not saved."
" Are you sure you want to change the current data file?"):
fn = QFileDialog.getSaveFileName(self, "Select a new data file to create", self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
fn = path(fn)
if fn.exists():
button = QMessageBox.question(self, "Erasing existing file",
"Are you sure yo want to empty the file '%s' ?" % fn,
QMessageBox.Yes, QMessageBox.No)
if button == QMessageBox.No:
return
fn.remove()
self._data.clear()
self._previousScene.resetNewPoints()
self._currentScene.resetNewPoints()
self._project.data_file = fn
self.initFromData()
log_debug("Data file = %s" % (self._project.data_file,))
@pyqtSignature("")
def on_actionAbout_triggered(self):
dlg = QMessageBox(self)
dlg.setWindowTitle("About Point Tracker")
dlg.setIconPixmap(self.windowIcon().pixmap(64, 64))
#dlg.setTextFormat(Qt.RichText)
dlg.setText("""Point Tracker Tool version %s rev %s
Developper: Pierre Barbier de Reuille <*****@*****.**>
Copyright 2008
""" % (__version__, __revision__))
img_read = ", ".join(str(s) for s in QImageReader.supportedImageFormats())
img_write = ", ".join(str(s) for s in QImageWriter.supportedImageFormats())
dlg.setDetailedText("""Supported image formats:
- For reading: %s
- For writing: %s
""" % (img_read, img_write))
dlg.exec_()
@pyqtSignature("")
def on_actionAbout_Qt_triggered(self):
QMessageBox.aboutQt(self, "About Qt")
@pyqtSignature("")
def on_actionReset_alignment_triggered(self):
self.undo_stack.push(ResetAlignment(self._data))
@pyqtSignature("")
def on_actionAlign_images_triggered(self):
fn = QFileDialog.getOpenFileName(self, "Select a data file for alignment", self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
d = self._data.copy()
fn = path(fn)
try:
d.load(fn)
except TrackingDataException as ex:
showException(self, "Error while loading data file", ex)
return
if d._last_pt_id > 0:
dlg = AlignmentDlg(d._last_pt_id+1, self)
if dlg.exec_():
ref = dlg.ui.referencePoint.currentText()
try:
ref = int(ref)
except ValueError:
ref = str(ref)
if dlg.ui.twoPointsRotation.isChecked():
r1 = int(dlg.ui.rotationPt1.currentText())
r2 = int(dlg.ui.rotationPt2.currentText())
rotation = ("TwoPoint", r1, r2)
else:
rotation = None
else:
return
else:
ref = 0
rotation = None
try:
shifts, angles = algo.alignImages(self._data, d, ref, rotation)
self.undo_stack.push(AlignImages(self._data, shifts, angles))
except algo.AlgoException as ex:
showException(self, "Error while aligning images", ex)
def sceneSizeChanged(self):
previous_rect = self._previousScene.real_scene_rect
current_rect = self._currentScene.real_scene_rect
rect = previous_rect | current_rect
self._previousScene.setSceneRect(rect)
self._currentScene.setSceneRect(rect)
@pyqtSignature("")
def on_actionEdit_timing_triggered(self):
data = self._data
dlg = TimeEditDlg(data.images_name, data.images_time, [data.image_path(n) for n in data.images_name], self)
self.current_dlg = dlg
if dlg.exec_() == QDialog.Accepted:
self.undo_stack.push(ChangeTiming(data, [t for n, t in dlg.model]))
del self.current_dlg
@pyqtSignature("")
def on_actionEdit_scales_triggered(self):
data = self._data
dlg = EditResDlg(data.images_name, data.images_scale, [data.image_path(n) for n in data.images_name], self)
self.current_dlg = dlg
if dlg.exec_() == QDialog.Accepted:
self.undo_stack.push(ChangeScales(data, [sc for n, sc in dlg.model]))
del self.current_dlg
@pyqtSignature("")
def on_actionCompute_growth_triggered(self):
data = self._data
dlg = GrowthComputationDlg(data, self)
self.current_dlg = dlg
dlg.exec_()
del self.current_dlg
@pyqtSignature("")
def on_actionPlot_growth_triggered(self):
data = self._data
dlg = PlottingDlg(data, self)
self.current_dlg = dlg
dlg.exec_()
del self.current_dlg
@pyqtSignature("")
def on_actionClean_cells_triggered(self):
self.undo_stack.push(CleanCells(self._data))
@pyqtSignature("")
def on_actionGotoCell_triggered(self):
cells = [str(cid) for cid in self._data.cells]
selected, ok = QInputDialog.getItem(self, "Goto cell", "Select the cell to go to", cells, 0)
if ok:
cid = int(selected)
self.ui.actionAdd_cell.setChecked(True)
data = self._data
if cid not in data.cells:
return
ls = data.cells_lifespan[cid]
prev_pos = self._previousScene.current_data._current_index
cur_pos = self._currentScene.current_data._current_index
full_poly = data.cells[cid]
poly = [pid for pid in full_poly if pid in data[prev_pos]]
#log_debug("Cell %d on time %d: %s" % (cid, prev_pos, poly))
if prev_pos < ls.start or prev_pos >= ls.end or not poly:
for i in range(*ls.slice().indices(len(data))):
poly = [pid for pid in full_poly if pid in data[i]]
if poly:
log_debug("Found cell %d on image %d with polygon %s" % (cid, i, poly))
new_prev_pos = i
break
else:
log_debug("Cell %d found nowhere in range %s!!!" % (cid, ls.slice()))
else:
new_prev_pos = prev_pos
new_cur_pos = min(max(cur_pos + new_prev_pos - prev_pos, 0), len(data))
self.ui.previousState.setCurrentIndex(new_prev_pos)
self.ui.currentState.setCurrentIndex(new_cur_pos)
self._previousScene.current_cell = cid
self._currentScene.current_cell = cid
prev_data = self._previousScene.current_data
poly = data.cells[cid]
prev_poly = QPolygonF([prev_data[ptid] for ptid in poly if ptid in prev_data])
prev_bbox = prev_poly.boundingRect()
log_debug("Previous bounding box = %dx%d+%d+%d" % (prev_bbox.width(), prev_bbox.height(),
prev_bbox.left(), prev_bbox.top()))
self.ui.previousData.ensureVisible(prev_bbox)
@pyqtSignature("")
def on_actionGotoPoint_triggered(self):
data = self._data
points = [str(pid) for pid in data.cell_points]
selected, ok = QInputDialog.getItem(self, "Goto point", "Select the point to go to", points, 0)
if ok:
pid = int(selected)
self.ui.action_Move_point.setChecked(True)
if pid not in data.cell_points:
return
prev_pos = self._previousScene.current_data._current_index
cur_pos = self._currentScene.current_data._current_index
prev_data = self._previousScene.current_data
if not pid in prev_data:
closest = -1
best_dist = len(data)+1
for img_data in data:
if pid in img_data:
dist = abs(img_data._current_index - prev_pos)
if dist < best_dist:
best_dist = dist
closest = img_data._current_index
new_prev_pos = closest
else:
new_prev_pos = prev_pos
new_cur_pos = min(max(cur_pos + new_prev_pos - prev_pos, 0), len(data))
self.ui.previousState.setCurrentIndex(new_prev_pos)
self.ui.currentState.setCurrentIndex(new_cur_pos)
self._previousScene.setSelectedIds([pid])
self._currentScene.setSelectedIds([pid])
self.ui.previousData.centerOn(self._previousScene.current_data[pid])
class ToolGrid(QFrame):
"""
A widget containing a grid of actions/buttons.
Actions can be added using standard :func:`QWidget.addAction(QAction)`
and :func:`QWidget.insertAction(int, QAction)` methods.
Parameters
----------
parent : :class:`QWidget`
Parent widget.
columns : int
Number of columns in the grid layout.
buttonSize : :class:`QSize`, optional
Size of tool buttons in the grid.
iconSize : :class:`QSize`, optional
Size of icons in the buttons.
toolButtonStyle : :class:`Qt.ToolButtonStyle`
Tool button style.
"""
actionTriggered = Signal(QAction)
actionHovered = Signal(QAction)
def __init__(self,
parent=None,
columns=4,
buttonSize=None,
iconSize=None,
toolButtonStyle=Qt.ToolButtonTextUnderIcon):
QFrame.__init__(self, parent)
if buttonSize is not None:
buttonSize = QSize(buttonSize)
if iconSize is not None:
iconSize = QSize(iconSize)
self.__columns = columns
self.__buttonSize = buttonSize or QSize(50, 50)
self.__iconSize = iconSize or QSize(26, 26)
self.__toolButtonStyle = toolButtonStyle
self.__gridSlots = []
self.__buttonListener = ToolButtonEventListener(self)
self.__buttonListener.buttonRightClicked.connect(
self.__onButtonRightClick)
self.__buttonListener.buttonEnter.connect(self.__onButtonEnter)
self.__mapper = QSignalMapper()
self.__mapper.mapped[QObject].connect(self.__onClicked)
self.__setupUi()
def __setupUi(self):
layout = QGridLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.setSizeConstraint(QGridLayout.SetFixedSize)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)
def setButtonSize(self, size):
"""
Set the button size.
"""
if self.__buttonSize != size:
self.__buttonSize = size
for slot in self.__gridSlots:
slot.button.setFixedSize(size)
def buttonSize(self):
"""
Return the button size.
"""
return QSize(self.__buttonSize)
def setIconSize(self, size):
"""
Set the button icon size.
"""
if self.__iconSize != size:
self.__iconSize = size
for slot in self.__gridSlots:
slot.button.setIconSize(size)
def iconSize(self):
"""
Return the icon size
"""
return QSize(self.__iconSize)
def setToolButtonStyle(self, style):
"""
Set the tool button style.
"""
if self.__toolButtonStyle != style:
self.__toolButtonStyle = style
for slot in self.__gridSlots:
slot.button.setToolButtonStyle(style)
def toolButtonStyle(self):
"""
Return the tool button style.
"""
return self.__toolButtonStyle
def setColumnCount(self, columns):
"""
Set the number of button/action columns.
"""
if self.__columns != columns:
self.__columns = columns
self.__relayout()
def columns(self):
"""
Return the number of columns in the grid.
"""
return self.__columns
def clear(self):
"""
Clear all actions/buttons.
"""
for slot in reversed(list(self.__gridSlots)):
self.removeAction(slot.action)
self.__gridSlots = []
def insertAction(self, before, action):
"""
Insert a new action at the position currently occupied
by `before` (can also be an index).
Parameters
----------
before : :class:`QAction` or int
Position where the `action` should be inserted.
action : :class:`QAction`
Action to insert
"""
if isinstance(before, int):
actions = list(self.actions())
if len(actions) == 0 or before >= len(actions):
# Insert as the first action or the last action.
return self.addAction(action)
before = actions[before]
return QFrame.insertAction(self, before, action)
def setActions(self, actions):
"""
Clear the grid and add `actions`.
"""
self.clear()
for action in actions:
self.addAction(action)
def buttonForAction(self, action):
"""
Return the :class:`QToolButton` instance button for `action`.
"""
actions = [slot.action for slot in self.__gridSlots]
index = actions.index(action)
return self.__gridSlots[index].button
def createButtonForAction(self, action):
"""
Create and return a :class:`QToolButton` for action.
"""
button = _ToolGridButton(self)
button.setDefaultAction(action)
if self.__buttonSize.isValid():
button.setFixedSize(self.__buttonSize)
if self.__iconSize.isValid():
button.setIconSize(self.__iconSize)
button.setToolButtonStyle(self.__toolButtonStyle)
button.setProperty("tool-grid-button", QVariant(True))
return button
def count(self):
"""
Return the number of buttons/actions in the grid.
"""
return len(self.__gridSlots)
def actionEvent(self, event):
QFrame.actionEvent(self, event)
if event.type() == QEvent.ActionAdded:
# Note: the action is already in the self.actions() list.
actions = list(self.actions())
index = actions.index(event.action())
self.__insertActionButton(index, event.action())
elif event.type() == QEvent.ActionRemoved:
self.__removeActionButton(event.action())
def __insertActionButton(self, index, action):
"""Create a button for the action and add it to the layout
at index.
"""
self.__shiftGrid(index, 1)
button = self.createButtonForAction(action)
row = index / self.__columns
column = index % self.__columns
self.layout().addWidget(button, row, column,
Qt.AlignLeft | Qt.AlignTop)
self.__gridSlots.insert(index,
_ToolGridSlot(button, action, row, column))
self.__mapper.setMapping(button, action)
button.clicked.connect(self.__mapper.map)
button.installEventFilter(self.__buttonListener)
button.installEventFilter(self)
def __removeActionButton(self, action):
"""Remove the button for the action from the layout and delete it.
"""
actions = [slot.action for slot in self.__gridSlots]
index = actions.index(action)
slot = self.__gridSlots.pop(index)
slot.button.removeEventFilter(self.__buttonListener)
slot.button.removeEventFilter(self)
self.__mapper.removeMappings(slot.button)
self.layout().removeWidget(slot.button)
self.__shiftGrid(index + 1, -1)
slot.button.deleteLater()
def __shiftGrid(self, start, count=1):
"""Shift all buttons starting at index `start` by `count` cells.
"""
button_count = self.layout().count()
direction = 1 if count >= 0 else -1
if direction == 1:
start, end = button_count - 1, start - 1
else:
start, end = start, button_count
for index in range(start, end, -direction):
item = self.layout().itemAtPosition(index / self.__columns,
index % self.__columns)
if item:
button = item.widget()
new_index = index + count
self.layout().addWidget(button, new_index / self.__columns,
new_index % self.__columns,
Qt.AlignLeft | Qt.AlignTop)
def __relayout(self):
"""Relayout the buttons.
"""
for i in reversed(range(self.layout().count())):
self.layout().takeAt(i)
self.__gridSlots = [
_ToolGridSlot(slot.button, slot.action, i / self.__columns,
i % self.__columns)
for i, slot in enumerate(self.__gridSlots)
]
for slot in self.__gridSlots:
self.layout().addWidget(slot.button, slot.row, slot.column,
Qt.AlignLeft | Qt.AlignTop)
def __indexOf(self, button):
"""Return the index of button widget.
"""
buttons = [slot.button for slot in self.__gridSlots]
return buttons.index(button)
def __onButtonRightClick(self, button):
pass
def __onButtonEnter(self, button):
action = button.defaultAction()
self.actionHovered.emit(action)
def __onClicked(self, action):
self.actionTriggered.emit(action)
def paintEvent(self, event):
return utils.StyledWidget_paintEvent(self, event)
def eventFilter(self, obj, event):
etype = event.type()
if etype == QEvent.KeyPress and obj.hasFocus():
key = event.key()
if key in [Qt.Key_Up, Qt.Key_Down, Qt.Key_Left, Qt.Key_Right]:
if self.__focusMove(obj, key):
event.accept()
return True
return QFrame.eventFilter(self, obj, event)
def __focusMove(self, focus, key):
assert (focus is self.focusWidget())
try:
index = self.__indexOf(focus)
except IndexError:
return False
if key == Qt.Key_Down:
index += self.__columns
elif key == Qt.Key_Up:
index -= self.__columns
elif key == Qt.Key_Left:
index -= 1
elif key == Qt.Key_Right:
index += 1
if index >= 0 and index < self.count():
button = self.__gridSlots[index].button
button.setFocus(Qt.TabFocusReason)
return True
else:
return False
class CanvasScene(QGraphicsScene):
"""
A Graphics Scene for displaying an :class:`~.scheme.Scheme` instance.
"""
#: Signal emitted when a :class:`NodeItem` has been added to the scene.
node_item_added = Signal(object)
#: Signal emitted when a :class:`NodeItem` has been removed from the
#: scene.
node_item_removed = Signal(object)
#: Signal emitted when a new :class:`LinkItem` has been added to the
#: scene.
link_item_added = Signal(object)
#: Signal emitted when a :class:`LinkItem` has been removed.
link_item_removed = Signal(object)
#: Signal emitted when a :class:`Annotation` item has been added.
annotation_added = Signal(object)
#: Signal emitted when a :class:`Annotation` item has been removed.
annotation_removed = Signal(object)
#: Signal emitted when the position of a :class:`NodeItem` has changed.
node_item_position_changed = Signal(object, QPointF)
#: Signal emitted when an :class:`NodeItem` has been double clicked.
node_item_double_clicked = Signal(object)
#: An node item has been activated (clicked)
node_item_activated = Signal(object)
#: An node item has been hovered
node_item_hovered = Signal(object)
#: Link item has been hovered
link_item_hovered = Signal(object)
def __init__(self, *args, **kwargs):
QGraphicsScene.__init__(self, *args, **kwargs)
self.scheme = None
self.registry = None
# All node items
self.__node_items = []
# Mapping from SchemeNodes to canvas items
self.__item_for_node = {}
# All link items
self.__link_items = []
# Mapping from SchemeLinks to canvas items.
self.__item_for_link = {}
# All annotation items
self.__annotation_items = []
# Mapping from SchemeAnnotations to canvas items.
self.__item_for_annotation = {}
# Is the scene editable
self.editable = True
# Anchor Layout
self.__anchor_layout = AnchorLayout()
self.addItem(self.__anchor_layout)
self.__channel_names_visible = True
self.__node_animation_enabled = True
self.user_interaction_handler = None
self.activated_mapper = QSignalMapper(self)
self.activated_mapper.mapped[QObject].connect(
lambda node: self.node_item_activated.emit(node)
)
self.hovered_mapper = QSignalMapper(self)
self.hovered_mapper.mapped[QObject].connect(
lambda node: self.node_item_hovered.emit(node)
)
self.position_change_mapper = QSignalMapper(self)
self.position_change_mapper.mapped[QObject].connect(
self._on_position_change
)
log.info("'%s' intitialized." % self)
def clear_scene(self):
"""
Clear (reset) the scene.
"""
if self.scheme is not None:
self.scheme.node_added.disconnect(self.add_node)
self.scheme.node_removed.disconnect(self.remove_node)
self.scheme.link_added.disconnect(self.add_link)
self.scheme.link_removed.disconnect(self.remove_link)
self.scheme.annotation_added.disconnect(self.add_annotation)
self.scheme.annotation_removed.disconnect(self.remove_annotation)
self.scheme.node_state_changed.disconnect(
self.on_widget_state_change
)
self.scheme.channel_state_changed.disconnect(
self.on_link_state_change
)
# Remove all items to make sure all signals from scheme items
# to canvas items are disconnected.
for annot in self.scheme.annotations:
if annot in self.__item_for_annotation:
self.remove_annotation(annot)
for link in self.scheme.links:
if link in self.__item_for_link:
self.remove_link(link)
for node in self.scheme.nodes:
if node in self.__item_for_node:
self.remove_node(node)
self.scheme = None
self.__node_items = []
self.__item_for_node = {}
self.__link_items = []
self.__item_for_link = {}
self.__annotation_items = []
self.__item_for_annotation = {}
self.__anchor_layout.deleteLater()
self.user_interaction_handler = None
self.clear()
log.info("'%s' cleared." % self)
def set_scheme(self, scheme):
"""
Set the scheme to display. Populates the scene with nodes and links
already in the scheme. Any further change to the scheme will be
reflected in the scene.
Parameters
----------
scheme : :class:`~.scheme.Scheme`
"""
if self.scheme is not None:
# Clear the old scheme
self.clear_scene()
log.info("Setting scheme '%s' on '%s'" % (scheme, self))
self.scheme = scheme
if self.scheme is not None:
self.scheme.node_added.connect(self.add_node)
self.scheme.node_removed.connect(self.remove_node)
self.scheme.link_added.connect(self.add_link)
self.scheme.link_removed.connect(self.remove_link)
self.scheme.annotation_added.connect(self.add_annotation)
self.scheme.annotation_removed.connect(self.remove_annotation)
self.scheme.node_state_changed.connect(
self.on_widget_state_change
)
self.scheme.channel_state_changed.connect(
self.on_link_state_change
)
self.scheme.topology_changed.connect(self.on_scheme_change)
for node in scheme.nodes:
self.add_node(node)
for link in scheme.links:
self.add_link(link)
for annot in scheme.annotations:
self.add_annotation(annot)
def set_registry(self, registry):
"""
Set the widget registry.
"""
# TODO: Remove/Deprecate. Is used only to get the category/background
# color. That should be part of the SchemeNode/WidgetDescription.
log.info("Setting registry '%s on '%s'." % (registry, self))
self.registry = registry
def set_anchor_layout(self, layout):
"""
Set an :class:`~.layout.AnchorLayout`
"""
if self.__anchor_layout != layout:
if self.__anchor_layout:
self.__anchor_layout.deleteLater()
self.__anchor_layout = None
self.__anchor_layout = layout
def anchor_layout(self):
"""
Return the anchor layout instance.
"""
return self.__anchor_layout
def set_channel_names_visible(self, visible):
"""
Set the channel names visibility.
"""
self.__channel_names_visible = visible
for link in self.__link_items:
link.setChannelNamesVisible(visible)
def channel_names_visible(self):
"""
Return the channel names visibility state.
"""
return self.__channel_names_visible
def set_node_animation_enabled(self, enabled):
"""
Set node animation enabled state.
"""
if self.__node_animation_enabled != enabled:
self.__node_animation_enabled = enabled
for node in self.__node_items:
node.setAnimationEnabled(enabled)
def add_node_item(self, item):
"""
Add a :class:`.NodeItem` instance to the scene.
"""
if item in self.__node_items:
raise ValueError("%r is already in the scene." % item)
if item.pos().isNull():
if self.__node_items:
pos = self.__node_items[-1].pos() + QPointF(150, 0)
else:
pos = QPointF(150, 150)
item.setPos(pos)
item.setFont(self.font())
# Set signal mappings
self.activated_mapper.setMapping(item, item)
item.activated.connect(self.activated_mapper.map)
self.hovered_mapper.setMapping(item, item)
item.hovered.connect(self.hovered_mapper.map)
self.position_change_mapper.setMapping(item, item)
item.positionChanged.connect(self.position_change_mapper.map)
self.addItem(item)
self.__node_items.append(item)
self.node_item_added.emit(item)
log.info("Added item '%s' to '%s'" % (item, self))
return item
def add_node(self, node):
"""
Add and return a default constructed :class:`.NodeItem` for a
:class:`SchemeNode` instance `node`. If the `node` is already in
the scene do nothing and just return its item.
"""
if node in self.__item_for_node:
# Already added
return self.__item_for_node[node]
item = self.new_node_item(node.description)
if node.position:
pos = QPointF(*node.position)
item.setPos(pos)
item.setTitle(node.title)
item.setProcessingState(node.processing_state)
item.setProgress(node.progress)
for message in node.state_messages():
item.setStateMessage(message)
item.setStatusMessage(node.status_message())
self.__item_for_node[node] = item
node.position_changed.connect(self.__on_node_pos_changed)
node.title_changed.connect(item.setTitle)
node.progress_changed.connect(item.setProgress)
node.processing_state_changed.connect(item.setProcessingState)
node.state_message_changed.connect(item.setStateMessage)
node.status_message_changed.connect(item.setStatusMessage)
return self.add_node_item(item)
def new_node_item(self, widget_desc, category_desc=None):
"""
Construct an new :class:`.NodeItem` from a `WidgetDescription`.
Optionally also set `CategoryDescription`.
"""
item = items.NodeItem()
item.setWidgetDescription(widget_desc)
if category_desc is None and self.registry and widget_desc.category:
category_desc = self.registry.category(widget_desc.category)
if category_desc is None and self.registry is not None:
try:
category_desc = self.registry.category(widget_desc.category)
except KeyError:
pass
if category_desc is not None:
item.setWidgetCategory(category_desc)
item.setAnimationEnabled(self.__node_animation_enabled)
return item
def remove_node_item(self, item):
"""
Remove `item` (:class:`.NodeItem`) from the scene.
"""
self.activated_mapper.removeMappings(item)
self.hovered_mapper.removeMappings(item)
self.position_change_mapper.removeMappings(item)
item.hide()
self.removeItem(item)
self.__node_items.remove(item)
self.node_item_removed.emit(item)
log.info("Removed item '%s' from '%s'" % (item, self))
def remove_node(self, node):
"""
Remove the :class:`.NodeItem` instance that was previously
constructed for a :class:`SchemeNode` `node` using the `add_node`
method.
"""
item = self.__item_for_node.pop(node)
node.position_changed.disconnect(self.__on_node_pos_changed)
node.title_changed.disconnect(item.setTitle)
node.progress_changed.disconnect(item.setProgress)
node.processing_state_changed.disconnect(item.setProcessingState)
node.state_message_changed.disconnect(item.setStateMessage)
self.remove_node_item(item)
def node_items(self):
"""
Return all :class:`.NodeItem` instances in the scene.
"""
return list(self.__node_items)
def add_link_item(self, item):
"""
Add a link (:class:`.LinkItem`) to the scene.
"""
if item.scene() is not self:
self.addItem(item)
item.setFont(self.font())
self.__link_items.append(item)
self.link_item_added.emit(item)
log.info("Added link %r -> %r to '%s'" % \
(item.sourceItem.title(), item.sinkItem.title(), self))
self.__anchor_layout.invalidateLink(item)
return item
def add_link(self, scheme_link):
"""
Create and add a :class:`.LinkItem` instance for a
:class:`SchemeLink` instance. If the link is already in the scene
do nothing and just return its :class:`.LinkItem`.
"""
if scheme_link in self.__item_for_link:
return self.__item_for_link[scheme_link]
source = self.__item_for_node[scheme_link.source_node]
sink = self.__item_for_node[scheme_link.sink_node]
item = self.new_link_item(source, scheme_link.source_channel,
sink, scheme_link.sink_channel)
item.setEnabled(scheme_link.enabled)
scheme_link.enabled_changed.connect(item.setEnabled)
if scheme_link.is_dynamic():
item.setDynamic(True)
item.setDynamicEnabled(scheme_link.dynamic_enabled)
scheme_link.dynamic_enabled_changed.connect(item.setDynamicEnabled)
item.setRuntimeState(scheme_link.runtime_state())
scheme_link.state_changed.connect(item.setRuntimeState)
self.add_link_item(item)
self.__item_for_link[scheme_link] = item
return item
def new_link_item(self, source_item, source_channel,
sink_item, sink_channel):
"""
Construct and return a new :class:`.LinkItem`
"""
item = items.LinkItem()
item.setSourceItem(source_item)
item.setSinkItem(sink_item)
def channel_name(channel):
if isinstance(channel, str):
return channel
else:
return channel.name
source_name = channel_name(source_channel)
sink_name = channel_name(sink_channel)
fmt = "<b>{0}</b> \u2192 <b>{1}</b>"
item.setToolTip(
fmt.format(escape(source_name),
escape(sink_name))
)
item.setSourceName(source_name)
item.setSinkName(sink_name)
item.setChannelNamesVisible(self.__channel_names_visible)
return item
def remove_link_item(self, item):
"""
Remove a link (:class:`.LinkItem`) from the scene.
"""
# Invalidate the anchor layout.
self.__anchor_layout.invalidateAnchorItem(
item.sourceItem.outputAnchorItem
)
self.__anchor_layout.invalidateAnchorItem(
item.sinkItem.inputAnchorItem
)
self.__link_items.remove(item)
# Remove the anchor points.
item.removeLink()
self.removeItem(item)
self.link_item_removed.emit(item)
log.info("Removed link '%s' from '%s'" % (item, self))
return item
def remove_link(self, scheme_link):
"""
Remove a :class:`.LinkItem` instance that was previously constructed
for a :class:`SchemeLink` instance `link` using the `add_link` method.
"""
item = self.__item_for_link.pop(scheme_link)
scheme_link.enabled_changed.disconnect(item.setEnabled)
if scheme_link.is_dynamic():
scheme_link.dynamic_enabled_changed.disconnect(
item.setDynamicEnabled
)
scheme_link.state_changed.disconnect(item.setRuntimeState)
self.remove_link_item(item)
def link_items(self):
"""
Return all :class:`.LinkItem`\s in the scene.
"""
return list(self.__link_items)
def add_annotation_item(self, annotation):
"""
Add an :class:`.Annotation` item to the scene.
"""
self.__annotation_items.append(annotation)
self.addItem(annotation)
self.annotation_added.emit(annotation)
return annotation
def add_annotation(self, scheme_annot):
"""
Create a new item for :class:`SchemeAnnotation` and add it
to the scene. If the `scheme_annot` is already in the scene do
nothing and just return its item.
"""
if scheme_annot in self.__item_for_annotation:
# Already added
return self.__item_for_annotation[scheme_annot]
if isinstance(scheme_annot, scheme.SchemeTextAnnotation):
item = items.TextAnnotation()
item.setPlainText(scheme_annot.text)
x, y, w, h = scheme_annot.rect
item.setPos(x, y)
item.resize(w, h)
item.setTextInteractionFlags(Qt.TextEditorInteraction)
font = font_from_dict(scheme_annot.font, item.font())
item.setFont(font)
scheme_annot.text_changed.connect(item.setPlainText)
elif isinstance(scheme_annot, scheme.SchemeArrowAnnotation):
item = items.ArrowAnnotation()
start, end = scheme_annot.start_pos, scheme_annot.end_pos
item.setLine(QLineF(QPointF(*start), QPointF(*end)))
item.setColor(QColor(scheme_annot.color))
scheme_annot.geometry_changed.connect(
self.__on_scheme_annot_geometry_change
)
self.add_annotation_item(item)
self.__item_for_annotation[scheme_annot] = item
return item
def remove_annotation_item(self, annotation):
"""
Remove an :class:`.Annotation` instance from the scene.
"""
self.__annotation_items.remove(annotation)
self.removeItem(annotation)
self.annotation_removed.emit(annotation)
def remove_annotation(self, scheme_annotation):
"""
Remove an :class:`.Annotation` instance that was previously added
using :func:`add_anotation`.
"""
item = self.__item_for_annotation.pop(scheme_annotation)
scheme_annotation.geometry_changed.disconnect(
self.__on_scheme_annot_geometry_change
)
if isinstance(scheme_annotation, scheme.SchemeTextAnnotation):
scheme_annotation.text_changed.disconnect(
item.setPlainText
)
self.remove_annotation_item(item)
def annotation_items(self):
"""
Return all :class:`.Annotation` items in the scene.
"""
return self.__annotation_items
def item_for_annotation(self, scheme_annotation):
return self.__item_for_annotation[scheme_annotation]
def annotation_for_item(self, item):
rev = dict(reversed(item) \
for item in self.__item_for_annotation.items())
return rev[item]
def commit_scheme_node(self, node):
"""
Commit the `node` into the scheme.
"""
if not self.editable:
raise Exception("Scheme not editable.")
if node not in self.__item_for_node:
raise ValueError("No 'NodeItem' for node.")
item = self.__item_for_node[node]
try:
self.scheme.add_node(node)
except Exception:
log.error("An error occurred while committing node '%s'",
node, exc_info=True)
# Cleanup (remove the node item)
self.remove_node_item(item)
raise
log.info("Commited node '%s' from '%s' to '%s'" % \
(node, self, self.scheme))
def commit_scheme_link(self, link):
"""
Commit a scheme link.
"""
if not self.editable:
raise Exception("Scheme not editable")
if link not in self.__item_for_link:
raise ValueError("No 'LinkItem' for link.")
self.scheme.add_link(link)
log.info("Commited link '%s' from '%s' to '%s'" % \
(link, self, self.scheme))
def node_for_item(self, item):
"""
Return the `SchemeNode` for the `item`.
"""
rev = dict([(v, k) for k, v in self.__item_for_node.items()])
return rev[item]
def item_for_node(self, node):
"""
Return the :class:`NodeItem` instance for a :class:`SchemeNode`.
"""
return self.__item_for_node[node]
def link_for_item(self, item):
"""
Return the `SchemeLink for `item` (:class:`LinkItem`).
"""
rev = dict([(v, k) for k, v in self.__item_for_link.items()])
return rev[item]
def item_for_link(self, link):
"""
Return the :class:`LinkItem` for a :class:`SchemeLink`
"""
return self.__item_for_link[link]
def selected_node_items(self):
"""
Return the selected :class:`NodeItem`'s.
"""
return [item for item in self.__node_items if item.isSelected()]
def selected_annotation_items(self):
"""
Return the selected :class:`Annotation`'s
"""
return [item for item in self.__annotation_items if item.isSelected()]
def node_links(self, node_item):
"""
Return all links from the `node_item` (:class:`NodeItem`).
"""
return self.node_output_links(node_item) + \
self.node_input_links(node_item)
def node_output_links(self, node_item):
"""
Return a list of all output links from `node_item`.
"""
return [link for link in self.__link_items
if link.sourceItem == node_item]
def node_input_links(self, node_item):
"""
Return a list of all input links for `node_item`.
"""
return [link for link in self.__link_items
if link.sinkItem == node_item]
def neighbor_nodes(self, node_item):
"""
Return a list of `node_item`'s (class:`NodeItem`) neighbor nodes.
"""
neighbors = list(map(attrgetter("sourceItem"),
self.node_input_links(node_item)))
neighbors.extend(map(attrgetter("sinkItem"),
self.node_output_links(node_item)))
return neighbors
def on_widget_state_change(self, widget, state):
pass
def on_link_state_change(self, link, state):
pass
def on_scheme_change(self, ):
pass
def _on_position_change(self, item):
# Invalidate the anchor point layout and schedule a layout.
self.__anchor_layout.invalidateNode(item)
self.node_item_position_changed.emit(item, item.pos())
def __on_node_pos_changed(self, pos):
node = self.sender()
item = self.__item_for_node[node]
item.setPos(*pos)
def __on_scheme_annot_geometry_change(self):
annot = self.sender()
item = self.__item_for_annotation[annot]
if isinstance(annot, scheme.SchemeTextAnnotation):
item.setGeometry(QRectF(*annot.rect))
elif isinstance(annot, scheme.SchemeArrowAnnotation):
p1 = item.mapFromScene(QPointF(*annot.start_pos))
p2 = item.mapFromScene(QPointF(*annot.end_pos))
item.setLine(QLineF(p1, p2))
else:
pass
def item_at(self, pos, type_or_tuple=None, buttons=0):
"""Return the item at `pos` that is an instance of the specified
type (`type_or_tuple`). If `buttons` (`Qt.MouseButtons`) is given
only return the item if it is the top level item that would
accept any of the buttons (`QGraphicsItem.acceptedMouseButtons`).
"""
rect = QRectF(pos, QSizeF(1, 1))
items = self.items(rect)
if buttons:
items = itertools.dropwhile(
lambda item: not item.acceptedMouseButtons() & buttons,
items
)
items = list(items)[:1]
if type_or_tuple:
items = [i for i in items if isinstance(i, type_or_tuple)]
return items[0] if items else None
if PYQT_VERSION < 0x40900:
# For QGraphicsObject subclasses items, itemAt ... return a
# QGraphicsItem wrapper instance and not the actual class instance.
def itemAt(self, *args, **kwargs):
item = QGraphicsScene.itemAt(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def items(self, *args, **kwargs):
items = QGraphicsScene.items(self, *args, **kwargs)
return list(map(toGraphicsObjectIfPossible, items))
def selectedItems(self, *args, **kwargs):
return list(map(toGraphicsObjectIfPossible,
QGraphicsScene.selectedItems(self, *args, **kwargs)))
def collidingItems(self, *args, **kwargs):
return list(map(toGraphicsObjectIfPossible,
QGraphicsScene.collidingItems(self, *args, **kwargs)))
def focusItem(self, *args, **kwargs):
item = QGraphicsScene.focusItem(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def mouseGrabberItem(self, *args, **kwargs):
item = QGraphicsScene.mouseGrabberItem(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def mousePressEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mousePressEvent(event):
return
# Right (context) click on the node item. If the widget is not
# in the current selection then select the widget (only the widget).
# Else simply return and let customContextMenuReqested signal
# handle it
shape_item = self.item_at(event.scenePos(), items.NodeItem)
if shape_item and event.button() == Qt.RightButton and \
shape_item.flags() & QGraphicsItem.ItemIsSelectable:
if not shape_item.isSelected():
self.clearSelection()
shape_item.setSelected(True)
return QGraphicsScene.mousePressEvent(self, event)
def mouseMoveEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseMoveEvent(event):
return
return QGraphicsScene.mouseMoveEvent(self, event)
def mouseReleaseEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseReleaseEvent(event):
return
return QGraphicsScene.mouseReleaseEvent(self, event)
def mouseDoubleClickEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseDoubleClickEvent(event):
return
return QGraphicsScene.mouseDoubleClickEvent(self, event)
def keyPressEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.keyPressEvent(event):
return
return QGraphicsScene.keyPressEvent(self, event)
def keyReleaseEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.keyReleaseEvent(event):
return
return QGraphicsScene.keyReleaseEvent(self, event)
def set_user_interaction_handler(self, handler):
if self.user_interaction_handler and \
not self.user_interaction_handler.isFinished():
self.user_interaction_handler.cancel()
log.info("Setting interaction '%s' to '%s'" % (handler, self))
self.user_interaction_handler = handler
if handler:
handler.start()
def event(self, event):
# TODO: change the base class of Node/LinkItem to QGraphicsWidget.
# It already handles font changes.
if event.type() == QEvent.FontChange:
self.__update_font()
return QGraphicsScene.event(self, event)
def __update_font(self):
font = self.font()
for item in self.__node_items + self.__link_items:
item.setFont(font)
def __str__(self):
return "%s(objectName=%r, ...)" % \
(type(self).__name__, str(self.objectName()))
class ToolGrid(QFrame):
"""
A widget containing a grid of actions/buttons.
Actions can be added using standard :ref:`QWidget.addAction(QAction)`
and :ref:`QWidget.insertAction(int, QAction)` methods.
Parameters
----------
parent : :class:`QWidget`
Parent widget.
columns : int
Number of columns in the grid layout.
buttonSize : :class:`QSize`, optional
Size of tool buttons in the grid.
iconSize : :class:`QSize`, optional
Size of icons in the buttons.
toolButtonStyle : :class:`Qt.ToolButtonStyle`
Tool button style.
"""
actionTriggered = Signal(QAction)
actionHovered = Signal(QAction)
def __init__(self, parent=None, columns=4, buttonSize=None,
iconSize=None, toolButtonStyle=Qt.ToolButtonTextUnderIcon):
QFrame.__init__(self, parent)
if buttonSize is not None:
buttonSize = QSize(buttonSize)
if iconSize is not None:
iconSize = QSize(iconSize)
self.__columns = columns
self.__buttonSize = buttonSize or QSize(50, 50)
self.__iconSize = iconSize or QSize(26, 26)
self.__toolButtonStyle = toolButtonStyle
self.__gridSlots = []
self.__buttonListener = ToolButtonEventListener(self)
self.__buttonListener.buttonRightClicked.connect(
self.__onButtonRightClick)
self.__buttonListener.buttonEnter.connect(
self.__onButtonEnter)
self.__mapper = QSignalMapper()
self.__mapper.mapped[QObject].connect(self.__onClicked)
self.__setupUi()
def __setupUi(self):
layout = QGridLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.setSizeConstraint(QGridLayout.SetFixedSize)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)
def setButtonSize(self, size):
"""
Set the button size.
"""
if self.__buttonSize != size:
self.__buttonSize = size
for slot in self.__gridSlots:
slot.button.setFixedSize(size)
def buttonSize(self):
"""
Return the button size.
"""
return QSize(self.__buttonSize)
def setIconSize(self, size):
"""
Set the button icon size.
"""
if self.__iconSize != size:
self.__iconSize = size
for slot in self.__gridSlots:
slot.button.setIconSize(size)
def iconSize(self):
"""
Return the icon size
"""
return QSize(self.__iconSize)
def setToolButtonStyle(self, style):
"""
Set the tool button style.
"""
if self.__toolButtonStyle != style:
self.__toolButtonStyle = style
for slot in self.__gridSlots:
slot.button.setToolButtonStyle(style)
def toolButtonStyle(self):
"""
Return the tool button style.
"""
return self.__toolButtonStyle
def setColumnCount(self, columns):
"""
Set the number of button/action columns.
"""
if self.__columns != columns:
self.__columns = columns
self.__relayout()
def columns(self):
"""
Return the number of columns in the grid.
"""
return self.__columns
def clear(self):
"""
Clear all actions/buttons.
"""
for slot in reversed(list(self.__gridSlots)):
self.removeAction(slot.action)
self.__gridSlots = []
def insertAction(self, before, action):
"""
Insert a new action at the position currently occupied
by `before` (can also be an index).
Parameters
----------
before : :class:`QAction` or int
Position where the `action` should be inserted.
action : :class:`QAction`
Action to insert
"""
if isinstance(before, int):
actions = list(self.actions())
if len(actions) == 0 or before >= len(actions):
# Insert as the first action or the last action.
return self.addAction(action)
before = actions[before]
return QFrame.insertAction(self, before, action)
def setActions(self, actions):
"""
Clear the grid and add `actions`.
"""
self.clear()
for action in actions:
self.addAction(action)
def buttonForAction(self, action):
"""
Return the :class:`QToolButton` instance button for `action`.
"""
actions = [slot.action for slot in self.__gridSlots]
index = actions.index(action)
return self.__gridSlots[index].button
def createButtonForAction(self, action):
"""
Create and return a :class:`QToolButton` for action.
"""
button = _ToolGridButton(self)
button.setDefaultAction(action)
if self.__buttonSize.isValid():
button.setFixedSize(self.__buttonSize)
if self.__iconSize.isValid():
button.setIconSize(self.__iconSize)
button.setToolButtonStyle(self.__toolButtonStyle)
button.setProperty("tool-grid-button", qtcompat.qwrap(True))
return button
def count(self):
"""
Return the number of buttons/actions in the grid.
"""
return len(self.__gridSlots)
def actionEvent(self, event):
QFrame.actionEvent(self, event)
if event.type() == QEvent.ActionAdded:
# Note: the action is already in the self.actions() list.
actions = list(self.actions())
index = actions.index(event.action())
self.__insertActionButton(index, event.action())
elif event.type() == QEvent.ActionRemoved:
self.__removeActionButton(event.action())
def __insertActionButton(self, index, action):
"""Create a button for the action and add it to the layout
at index.
"""
self.__shiftGrid(index, 1)
button = self.createButtonForAction(action)
row = index / self.__columns
column = index % self.__columns
self.layout().addWidget(
button, row, column,
Qt.AlignLeft | Qt.AlignTop
)
self.__gridSlots.insert(
index, _ToolGridSlot(button, action, row, column)
)
self.__mapper.setMapping(button, action)
button.clicked.connect(self.__mapper.map)
button.installEventFilter(self.__buttonListener)
button.installEventFilter(self)
def __removeActionButton(self, action):
"""Remove the button for the action from the layout and delete it.
"""
actions = [slot.action for slot in self.__gridSlots]
index = actions.index(action)
slot = self.__gridSlots.pop(index)
slot.button.removeEventFilter(self.__buttonListener)
slot.button.removeEventFilter(self)
self.__mapper.removeMappings(slot.button)
self.layout().removeWidget(slot.button)
self.__shiftGrid(index + 1, -1)
slot.button.deleteLater()
def __shiftGrid(self, start, count=1):
"""Shift all buttons starting at index `start` by `count` cells.
"""
button_count = self.layout().count()
direction = 1 if count >= 0 else -1
if direction == 1:
start, end = button_count - 1, start - 1
else:
start, end = start, button_count
for index in range(start, end, -direction):
item = self.layout().itemAtPosition(index / self.__columns,
index % self.__columns)
if item:
button = item.widget()
new_index = index + count
self.layout().addWidget(button, new_index / self.__columns,
new_index % self.__columns,
Qt.AlignLeft | Qt.AlignTop)
def __relayout(self):
"""Relayout the buttons.
"""
for i in reversed(range(self.layout().count())):
self.layout().takeAt(i)
self.__gridSlots = [_ToolGridSlot(slot.button, slot.action,
i / self.__columns,
i % self.__columns)
for i, slot in enumerate(self.__gridSlots)]
for slot in self.__gridSlots:
self.layout().addWidget(slot.button, slot.row, slot.column,
Qt.AlignLeft | Qt.AlignTop)
def __indexOf(self, button):
"""Return the index of button widget.
"""
buttons = [slot.button for slot in self.__gridSlots]
return buttons.index(button)
def __onButtonRightClick(self, button):
pass
def __onButtonEnter(self, button):
action = button.defaultAction()
self.actionHovered.emit(action)
def __onClicked(self, action):
self.actionTriggered.emit(action)
def paintEvent(self, event):
return utils.StyledWidget_paintEvent(self, event)
def eventFilter(self, obj, event):
etype = event.type()
if etype == QEvent.KeyPress and obj.hasFocus():
key = event.key()
if key in [Qt.Key_Up, Qt.Key_Down, Qt.Key_Left, Qt.Key_Right]:
if self.__focusMove(obj, key):
event.accept()
return True
return QFrame.eventFilter(self, obj, event)
def __focusMove(self, focus, key):
assert(focus is self.focusWidget())
try:
index = self.__indexOf(focus)
except IndexError:
return False
if key == Qt.Key_Down:
index += self.__columns
elif key == Qt.Key_Up:
index -= self.__columns
elif key == Qt.Key_Left:
index -= 1
elif key == Qt.Key_Right:
index += 1
if index >= 0 and index < self.count():
button = self.__gridSlots[index].button
button.setFocus(Qt.TabFocusReason)
return True
else:
return False
class CanvasScene(QGraphicsScene):
"""
A Graphics Scene for displaying an :class:`~.scheme.Scheme` instance.
"""
#: Signal emitted when a :class:`NodeItem` has been added to the scene.
node_item_added = Signal(object)
#: Signal emitted when a :class:`NodeItem` has been removed from the
#: scene.
node_item_removed = Signal(object)
#: Signal emitted when a new :class:`LinkItem` has been added to the
#: scene.
link_item_added = Signal(object)
#: Signal emitted when a :class:`LinkItem` has been removed.
link_item_removed = Signal(object)
#: Signal emitted when a :class:`Annotation` item has been added.
annotation_added = Signal(object)
#: Signal emitted when a :class:`Annotation` item has been removed.
annotation_removed = Signal(object)
#: Signal emitted when the position of a :class:`NodeItem` has changed.
node_item_position_changed = Signal(object, QPointF)
#: Signal emitted when an :class:`NodeItem` has been double clicked.
node_item_double_clicked = Signal(object)
#: An node item has been activated (clicked)
node_item_activated = Signal(object)
#: An node item has been hovered
node_item_hovered = Signal(object)
#: Link item has been hovered
link_item_hovered = Signal(object)
def __init__(self, *args, **kwargs):
QGraphicsScene.__init__(self, *args, **kwargs)
self.scheme = None
self.registry = None
# All node items
self.__node_items = []
# Mapping from SchemeNodes to canvas items
self.__item_for_node = {}
# All link items
self.__link_items = []
# Mapping from SchemeLinks to canvas items.
self.__item_for_link = {}
# All annotation items
self.__annotation_items = []
# Mapping from SchemeAnnotations to canvas items.
self.__item_for_annotation = {}
# Is the scene editable
self.editable = True
# Anchor Layout
self.__anchor_layout = AnchorLayout()
self.addItem(self.__anchor_layout)
self.__channel_names_visible = True
self.__node_animation_enabled = True
self.user_interaction_handler = None
self.activated_mapper = QSignalMapper(self)
self.activated_mapper.mapped[QObject].connect(
lambda node: self.node_item_activated.emit(node)
)
self.hovered_mapper = QSignalMapper(self)
self.hovered_mapper.mapped[QObject].connect(
lambda node: self.node_item_hovered.emit(node)
)
self.position_change_mapper = QSignalMapper(self)
self.position_change_mapper.mapped[QObject].connect(
self._on_position_change
)
log.info("'%s' intitialized." % self)
def clear_scene(self):
"""
Clear (reset) the scene.
"""
if self.scheme is not None:
self.scheme.node_added.disconnect(self.add_node)
self.scheme.node_removed.disconnect(self.remove_node)
self.scheme.link_added.disconnect(self.add_link)
self.scheme.link_removed.disconnect(self.remove_link)
self.scheme.annotation_added.disconnect(self.add_annotation)
self.scheme.annotation_removed.disconnect(self.remove_annotation)
self.scheme.node_state_changed.disconnect(
self.on_widget_state_change
)
self.scheme.channel_state_changed.disconnect(
self.on_link_state_change
)
# Remove all items to make sure all signals from scheme items
# to canvas items are disconnected.
for annot in self.scheme.annotations:
if annot in self.__item_for_annotation:
self.remove_annotation(annot)
for link in self.scheme.links:
if link in self.__item_for_link:
self.remove_link(link)
for node in self.scheme.nodes:
if node in self.__item_for_node:
self.remove_node(node)
self.scheme = None
self.__node_items = []
self.__item_for_node = {}
self.__link_items = []
self.__item_for_link = {}
self.__annotation_items = []
self.__item_for_annotation = {}
self.__anchor_layout.deleteLater()
self.user_interaction_handler = None
self.clear()
log.info("'%s' cleared." % self)
def set_scheme(self, scheme):
"""
Set the scheme to display. Populates the scene with nodes and links
already in the scheme. Any further change to the scheme will be
reflected in the scene.
Parameters
----------
scheme : :class:`~.scheme.Scheme`
"""
if self.scheme is not None:
# Clear the old scheme
self.clear_scene()
log.info("Setting scheme '%s' on '%s'" % (scheme, self))
self.scheme = scheme
if self.scheme is not None:
self.scheme.node_added.connect(self.add_node)
self.scheme.node_removed.connect(self.remove_node)
self.scheme.link_added.connect(self.add_link)
self.scheme.link_removed.connect(self.remove_link)
self.scheme.annotation_added.connect(self.add_annotation)
self.scheme.annotation_removed.connect(self.remove_annotation)
self.scheme.node_state_changed.connect(
self.on_widget_state_change
)
self.scheme.channel_state_changed.connect(
self.on_link_state_change
)
self.scheme.topology_changed.connect(self.on_scheme_change)
for node in scheme.nodes:
self.add_node(node)
for link in scheme.links:
self.add_link(link)
for annot in scheme.annotations:
self.add_annotation(annot)
def set_registry(self, registry):
"""
Set the widget registry.
"""
# TODO: Remove/Deprecate. Is used only to get the category/background
# color. That should be part of the SchemeNode/WidgetDescription.
log.info("Setting registry '%s on '%s'." % (registry, self))
self.registry = registry
def set_anchor_layout(self, layout):
"""
Set an :class:`~.layout.AnchorLayout`
"""
if self.__anchor_layout != layout:
if self.__anchor_layout:
self.__anchor_layout.deleteLater()
self.__anchor_layout = None
self.__anchor_layout = layout
def anchor_layout(self):
"""
Return the anchor layout instance.
"""
return self.__anchor_layout
def set_channel_names_visible(self, visible):
"""
Set the channel names visibility.
"""
self.__channel_names_visible = visible
for link in self.__link_items:
link.setChannelNamesVisible(visible)
def channel_names_visible(self):
"""
Return the channel names visibility state.
"""
return self.__channel_names_visible
def set_node_animation_enabled(self, enabled):
"""
Set node animation enabled state.
"""
if self.__node_animation_enabled != enabled:
self.__node_animation_enabled = enabled
for node in self.__node_items:
node.setAnimationEnabled(enabled)
def add_node_item(self, item):
"""
Add a :class:`.NodeItem` instance to the scene.
"""
if item in self.__node_items:
raise ValueError("%r is already in the scene." % item)
if item.pos().isNull():
if self.__node_items:
pos = self.__node_items[-1].pos() + QPointF(150, 0)
else:
pos = QPointF(150, 150)
item.setPos(pos)
item.setFont(self.font())
# Set signal mappings
self.activated_mapper.setMapping(item, item)
item.activated.connect(self.activated_mapper.map)
self.hovered_mapper.setMapping(item, item)
item.hovered.connect(self.hovered_mapper.map)
self.position_change_mapper.setMapping(item, item)
item.positionChanged.connect(self.position_change_mapper.map)
self.addItem(item)
self.__node_items.append(item)
self.node_item_added.emit(item)
log.info("Added item '%s' to '%s'" % (item, self))
return item
def add_node(self, node):
"""
Add and return a default constructed :class:`.NodeItem` for a
:class:`SchemeNode` instance `node`. If the `node` is already in
the scene do nothing and just return its item.
"""
if node in self.__item_for_node:
# Already added
return self.__item_for_node[node]
item = self.new_node_item(node.description)
if node.position:
pos = QPointF(*node.position)
item.setPos(pos)
item.setTitle(node.title)
item.setProcessingState(node.processing_state)
item.setProgress(node.progress)
for message in node.state_messages():
item.setStateMessage(message)
item.setStatusMessage(node.status_message())
self.__item_for_node[node] = item
node.position_changed.connect(self.__on_node_pos_changed)
node.title_changed.connect(item.setTitle)
node.progress_changed.connect(item.setProgress)
node.processing_state_changed.connect(item.setProcessingState)
node.state_message_changed.connect(item.setStateMessage)
node.status_message_changed.connect(item.setStatusMessage)
return self.add_node_item(item)
def new_node_item(self, widget_desc, category_desc=None):
"""
Construct an new :class:`.NodeItem` from a `WidgetDescription`.
Optionally also set `CategoryDescription`.
"""
item = items.NodeItem()
item.setWidgetDescription(widget_desc)
if category_desc is None and self.registry and widget_desc.category:
category_desc = self.registry.category(widget_desc.category)
if category_desc is None and self.registry is not None:
try:
category_desc = self.registry.category(widget_desc.category)
except KeyError:
pass
if category_desc is not None:
item.setWidgetCategory(category_desc)
item.setAnimationEnabled(self.__node_animation_enabled)
return item
def remove_node_item(self, item):
"""
Remove `item` (:class:`.NodeItem`) from the scene.
"""
self.activated_mapper.removeMappings(item)
self.hovered_mapper.removeMappings(item)
self.position_change_mapper.removeMappings(item)
item.hide()
self.removeItem(item)
self.__node_items.remove(item)
self.node_item_removed.emit(item)
log.info("Removed item '%s' from '%s'" % (item, self))
def remove_node(self, node):
"""
Remove the :class:`.NodeItem` instance that was previously
constructed for a :class:`SchemeNode` `node` using the `add_node`
method.
"""
item = self.__item_for_node.pop(node)
node.position_changed.disconnect(self.__on_node_pos_changed)
node.title_changed.disconnect(item.setTitle)
node.progress_changed.disconnect(item.setProgress)
node.processing_state_changed.disconnect(item.setProcessingState)
node.state_message_changed.disconnect(item.setStateMessage)
self.remove_node_item(item)
def node_items(self):
"""
Return all :class:`.NodeItem` instances in the scene.
"""
return list(self.__node_items)
def add_link_item(self, item):
"""
Add a link (:class:`.LinkItem`) to the scene.
"""
if item.scene() is not self:
self.addItem(item)
item.setFont(self.font())
self.__link_items.append(item)
self.link_item_added.emit(item)
log.info("Added link %r -> %r to '%s'" % \
(item.sourceItem.title(), item.sinkItem.title(), self))
self.__anchor_layout.invalidateLink(item)
return item
def add_link(self, scheme_link):
"""
Create and add a :class:`.LinkItem` instance for a
:class:`SchemeLink` instance. If the link is already in the scene
do nothing and just return its :class:`.LinkItem`.
"""
if scheme_link in self.__item_for_link:
return self.__item_for_link[scheme_link]
source = self.__item_for_node[scheme_link.source_node]
sink = self.__item_for_node[scheme_link.sink_node]
item = self.new_link_item(source, scheme_link.source_channel,
sink, scheme_link.sink_channel)
item.setEnabled(scheme_link.enabled)
scheme_link.enabled_changed.connect(item.setEnabled)
if scheme_link.is_dynamic():
item.setDynamic(True)
item.setDynamicEnabled(scheme_link.dynamic_enabled)
scheme_link.dynamic_enabled_changed.connect(item.setDynamicEnabled)
self.add_link_item(item)
self.__item_for_link[scheme_link] = item
return item
def new_link_item(self, source_item, source_channel,
sink_item, sink_channel):
"""
Construct and return a new :class:`.LinkItem`
"""
item = items.LinkItem()
item.setSourceItem(source_item)
item.setSinkItem(sink_item)
def channel_name(channel):
if isinstance(channel, str):
return channel
else:
return channel.name
source_name = channel_name(source_channel)
sink_name = channel_name(sink_channel)
fmt = "<b>{0}</b> \u2192 <b>{1}</b>"
item.setToolTip(
fmt.format(escape(source_name),
escape(sink_name))
)
item.setSourceName(source_name)
item.setSinkName(sink_name)
item.setChannelNamesVisible(self.__channel_names_visible)
return item
def remove_link_item(self, item):
"""
Remove a link (:class:`.LinkItem`) from the scene.
"""
# Invalidate the anchor layout.
self.__anchor_layout.invalidateAnchorItem(
item.sourceItem.outputAnchorItem
)
self.__anchor_layout.invalidateAnchorItem(
item.sinkItem.inputAnchorItem
)
self.__link_items.remove(item)
# Remove the anchor points.
item.removeLink()
self.removeItem(item)
self.link_item_removed.emit(item)
log.info("Removed link '%s' from '%s'" % (item, self))
return item
def remove_link(self, scheme_link):
"""
Remove a :class:`.LinkItem` instance that was previously constructed
for a :class:`SchemeLink` instance `link` using the `add_link` method.
"""
item = self.__item_for_link.pop(scheme_link)
scheme_link.enabled_changed.disconnect(item.setEnabled)
if scheme_link.is_dynamic():
scheme_link.dynamic_enabled_changed.disconnect(
item.setDynamicEnabled
)
self.remove_link_item(item)
def link_items(self):
"""
Return all :class:`.LinkItem`\s in the scene.
"""
return list(self.__link_items)
def add_annotation_item(self, annotation):
"""
Add an :class:`.Annotation` item to the scene.
"""
self.__annotation_items.append(annotation)
self.addItem(annotation)
self.annotation_added.emit(annotation)
return annotation
def add_annotation(self, scheme_annot):
"""
Create a new item for :class:`SchemeAnnotation` and add it
to the scene. If the `scheme_annot` is already in the scene do
nothing and just return its item.
"""
if scheme_annot in self.__item_for_annotation:
# Already added
return self.__item_for_annotation[scheme_annot]
if isinstance(scheme_annot, scheme.SchemeTextAnnotation):
item = items.TextAnnotation()
item.setPlainText(scheme_annot.text)
x, y, w, h = scheme_annot.rect
item.setPos(x, y)
item.resize(w, h)
item.setTextInteractionFlags(Qt.TextEditorInteraction)
font = font_from_dict(scheme_annot.font, item.font())
item.setFont(font)
scheme_annot.text_changed.connect(item.setPlainText)
elif isinstance(scheme_annot, scheme.SchemeArrowAnnotation):
item = items.ArrowAnnotation()
start, end = scheme_annot.start_pos, scheme_annot.end_pos
item.setLine(QLineF(QPointF(*start), QPointF(*end)))
item.setColor(QColor(scheme_annot.color))
scheme_annot.geometry_changed.connect(
self.__on_scheme_annot_geometry_change
)
self.add_annotation_item(item)
self.__item_for_annotation[scheme_annot] = item
return item
def remove_annotation_item(self, annotation):
"""
Remove an :class:`.Annotation` instance from the scene.
"""
self.__annotation_items.remove(annotation)
self.removeItem(annotation)
self.annotation_removed.emit(annotation)
def remove_annotation(self, scheme_annotation):
"""
Remove an :class:`.Annotation` instance that was previously added
using :func:`add_anotation`.
"""
item = self.__item_for_annotation.pop(scheme_annotation)
scheme_annotation.geometry_changed.disconnect(
self.__on_scheme_annot_geometry_change
)
if isinstance(scheme_annotation, scheme.SchemeTextAnnotation):
scheme_annotation.text_changed.disconnect(
item.setPlainText
)
self.remove_annotation_item(item)
def annotation_items(self):
"""
Return all :class:`.Annotation` items in the scene.
"""
return self.__annotation_items
def item_for_annotation(self, scheme_annotation):
return self.__item_for_annotation[scheme_annotation]
def annotation_for_item(self, item):
rev = dict(reversed(item) \
for item in self.__item_for_annotation.items())
return rev[item]
def commit_scheme_node(self, node):
"""
Commit the `node` into the scheme.
"""
if not self.editable:
raise Exception("Scheme not editable.")
if node not in self.__item_for_node:
raise ValueError("No 'NodeItem' for node.")
item = self.__item_for_node[node]
try:
self.scheme.add_node(node)
except Exception:
log.error("An error occurred while committing node '%s'",
node, exc_info=True)
# Cleanup (remove the node item)
self.remove_node_item(item)
raise
log.info("Commited node '%s' from '%s' to '%s'" % \
(node, self, self.scheme))
def commit_scheme_link(self, link):
"""
Commit a scheme link.
"""
if not self.editable:
raise Exception("Scheme not editable")
if link not in self.__item_for_link:
raise ValueError("No 'LinkItem' for link.")
self.scheme.add_link(link)
log.info("Commited link '%s' from '%s' to '%s'" % \
(link, self, self.scheme))
def node_for_item(self, item):
"""
Return the `SchemeNode` for the `item`.
"""
rev = dict([(v, k) for k, v in self.__item_for_node.items()])
return rev[item]
def item_for_node(self, node):
"""
Return the :class:`NodeItem` instance for a :class:`SchemeNode`.
"""
return self.__item_for_node[node]
def link_for_item(self, item):
"""
Return the `SchemeLink for `item` (:class:`LinkItem`).
"""
rev = dict([(v, k) for k, v in self.__item_for_link.items()])
return rev[item]
def item_for_link(self, link):
"""
Return the :class:`LinkItem` for a :class:`SchemeLink`
"""
return self.__item_for_link[link]
def selected_node_items(self):
"""
Return the selected :class:`NodeItem`'s.
"""
return [item for item in self.__node_items if item.isSelected()]
def selected_annotation_items(self):
"""
Return the selected :class:`Annotation`'s
"""
return [item for item in self.__annotation_items if item.isSelected()]
def node_links(self, node_item):
"""
Return all links from the `node_item` (:class:`NodeItem`).
"""
return self.node_output_links(node_item) + \
self.node_input_links(node_item)
def node_output_links(self, node_item):
"""
Return a list of all output links from `node_item`.
"""
return [link for link in self.__link_items
if link.sourceItem == node_item]
def node_input_links(self, node_item):
"""
Return a list of all input links for `node_item`.
"""
return [link for link in self.__link_items
if link.sinkItem == node_item]
def neighbor_nodes(self, node_item):
"""
Return a list of `node_item`'s (class:`NodeItem`) neighbor nodes.
"""
neighbors = list(map(attrgetter("sourceItem"),
self.node_input_links(node_item)))
neighbors.extend(map(attrgetter("sinkItem"),
self.node_output_links(node_item)))
return neighbors
def on_widget_state_change(self, widget, state):
pass
def on_link_state_change(self, link, state):
pass
def on_scheme_change(self, ):
pass
def _on_position_change(self, item):
# Invalidate the anchor point layout and schedule a layout.
self.__anchor_layout.invalidateNode(item)
self.node_item_position_changed.emit(item, item.pos())
def __on_node_pos_changed(self, pos):
node = self.sender()
item = self.__item_for_node[node]
item.setPos(*pos)
def __on_scheme_annot_geometry_change(self):
annot = self.sender()
item = self.__item_for_annotation[annot]
if isinstance(annot, scheme.SchemeTextAnnotation):
item.setGeometry(QRectF(*annot.rect))
elif isinstance(annot, scheme.SchemeArrowAnnotation):
p1 = item.mapFromScene(QPointF(*annot.start_pos))
p2 = item.mapFromScene(QPointF(*annot.end_pos))
item.setLine(QLineF(p1, p2))
else:
pass
def item_at(self, pos, type_or_tuple=None, buttons=0):
"""Return the item at `pos` that is an instance of the specified
type (`type_or_tuple`). If `buttons` (`Qt.MouseButtons`) is given
only return the item if it is the top level item that would
accept any of the buttons (`QGraphicsItem.acceptedMouseButtons`).
"""
rect = QRectF(pos, QSizeF(1, 1))
items = self.items(rect)
if buttons:
items = itertools.dropwhile(
lambda item: not item.acceptedMouseButtons() & buttons,
items
)
items = list(items)[:1]
if type_or_tuple:
items = [i for i in items if isinstance(i, type_or_tuple)]
return items[0] if items else None
if PYQT_VERSION < 0x40900:
# For QGraphicsObject subclasses items, itemAt ... return a
# QGraphicsItem wrapper instance and not the actual class instance.
def itemAt(self, *args, **kwargs):
item = QGraphicsScene.itemAt(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def items(self, *args, **kwargs):
items = QGraphicsScene.items(self, *args, **kwargs)
return list(map(toGraphicsObjectIfPossible, items))
def selectedItems(self, *args, **kwargs):
return list(map(toGraphicsObjectIfPossible,
QGraphicsScene.selectedItems(self, *args, **kwargs)))
def collidingItems(self, *args, **kwargs):
return list(map(toGraphicsObjectIfPossible,
QGraphicsScene.collidingItems(self, *args, **kwargs)))
def focusItem(self, *args, **kwargs):
item = QGraphicsScene.focusItem(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def mouseGrabberItem(self, *args, **kwargs):
item = QGraphicsScene.mouseGrabberItem(self, *args, **kwargs)
return toGraphicsObjectIfPossible(item)
def mousePressEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mousePressEvent(event):
return
# Right (context) click on the node item. If the widget is not
# in the current selection then select the widget (only the widget).
# Else simply return and let customContextMenuReqested signal
# handle it
shape_item = self.item_at(event.scenePos(), items.NodeItem)
if shape_item and event.button() == Qt.RightButton and \
shape_item.flags() & QGraphicsItem.ItemIsSelectable:
if not shape_item.isSelected():
self.clearSelection()
shape_item.setSelected(True)
return QGraphicsScene.mousePressEvent(self, event)
def mouseMoveEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseMoveEvent(event):
return
return QGraphicsScene.mouseMoveEvent(self, event)
def mouseReleaseEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseReleaseEvent(event):
return
return QGraphicsScene.mouseReleaseEvent(self, event)
def mouseDoubleClickEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.mouseDoubleClickEvent(event):
return
return QGraphicsScene.mouseDoubleClickEvent(self, event)
def keyPressEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.keyPressEvent(event):
return
return QGraphicsScene.keyPressEvent(self, event)
def keyReleaseEvent(self, event):
if self.user_interaction_handler and \
self.user_interaction_handler.keyReleaseEvent(event):
return
return QGraphicsScene.keyReleaseEvent(self, event)
def set_user_interaction_handler(self, handler):
if self.user_interaction_handler and \
not self.user_interaction_handler.isFinished():
self.user_interaction_handler.cancel()
log.info("Setting interaction '%s' to '%s'" % (handler, self))
self.user_interaction_handler = handler
if handler:
handler.start()
def event(self, event):
# TODO: change the base class of Node/LinkItem to QGraphicsWidget.
# It already handles font changes.
if event.type() == QEvent.FontChange:
self.__update_font()
return QGraphicsScene.event(self, event)
def __update_font(self):
font = self.font()
for item in self.__node_items + self.__link_items:
item.setFont(font)
def __str__(self):
return "%s(objectName=%r, ...)" % \
(type(self).__name__, str(self.objectName()))
class TrackingWindow(QMainWindow):
"""
Main window of the application.
This class is responsible for the global data structures too.
:IVariables:
undo_stack : `QUndoStack`
Undo stack. All actions that can be undone should be pushed on the stack.
_project : `project.Project`
Project object managing the loaded data
_data : `tracking_data.TrackingData`
Data object keeping track of points and cells
toolGroup : `QActionGroup`
Group of actions to be enabled only when actions can be taken on images
previousSelAct : `QActionGroup`
Actions enabled when points are selected in the previous pane
currentSelAct : `QActionGroup`
Actions enabled when points are selected in the current pane
projectAct : `QActionGroup`
Actions to enable once a project is loaded
_previousScene : `tracking_scene.TrackingScene`
Object managing the previous pane
_currentScene : `tracking_scene.LinkedTrackingScene`
Object managing the current pane
"""
def __init__(self, *args, **kwords):
QMainWindow.__init__(self, *args)
self.undo_stack = QUndoStack(self)
self.ui = Ui_TrackingWindow()
self.ui.setupUi(self)
self._project = None
self._data = None
self.toolGroup = QActionGroup(self)
self.toolGroup.addAction(self.ui.actionAdd_point)
self.toolGroup.addAction(self.ui.action_Move_point)
self.toolGroup.addAction(self.ui.actionAdd_cell)
self.toolGroup.addAction(self.ui.actionRemove_cell)
self.toolGroup.addAction(self.ui.action_Pan)
self.toolGroup.addAction(self.ui.actionZoom_out)
self.toolGroup.addAction(self.ui.actionZoom_in)
self.previousSelAct = QActionGroup(self)
self.previousSelAct.addAction(
self.ui.actionCopy_selection_from_Previous)
self.previousSelAct.addAction(self.ui.actionDelete_Previous)
self.previousSelAct.setEnabled(False)
self.currentSelAct = QActionGroup(self)
self.currentSelAct.addAction(self.ui.actionCopy_selection_from_Current)
self.currentSelAct.addAction(self.ui.actionDelete_Current)
self.currentSelAct.setEnabled(False)
self.projectAct = QActionGroup(self)
self.projectAct.addAction(self.ui.action_Next_image)
self.projectAct.addAction(self.ui.action_Previous_image)
self.projectAct.addAction(self.ui.actionAdd_point)
self.projectAct.addAction(self.ui.action_Move_point)
self.projectAct.addAction(self.ui.action_Pan)
self.projectAct.addAction(self.ui.actionAdd_cell)
self.projectAct.addAction(self.ui.actionRemove_cell)
self.projectAct.addAction(self.ui.action_Change_data_file)
self.projectAct.addAction(self.ui.actionNew_data_file)
self.projectAct.addAction(self.ui.actionZoom_out)
self.projectAct.addAction(self.ui.actionZoom_in)
self.projectAct.addAction(self.ui.actionSave_as)
self.projectAct.addAction(self.ui.action_Fit)
self.projectAct.addAction(self.ui.actionZoom_100)
self.projectAct.addAction(self.ui.actionMerge_points)
self.projectAct.addAction(self.ui.actionCopy_from_previous)
self.projectAct.addAction(self.ui.actionCopy_from_current)
self.projectAct.addAction(self.ui.actionReset_alignment)
self.projectAct.addAction(self.ui.actionAlign_images)
self.projectAct.addAction(self.ui.actionSelectPreviousAll)
self.projectAct.addAction(self.ui.actionSelectPreviousNew)
self.projectAct.addAction(self.ui.actionSelectPreviousNone)
self.projectAct.addAction(self.ui.actionSelectPreviousNon_associated)
self.projectAct.addAction(self.ui.actionSelectPreviousAssociated)
self.projectAct.addAction(self.ui.actionSelectPreviousInvert)
self.projectAct.addAction(self.ui.actionSelectCurrentAll)
self.projectAct.addAction(self.ui.actionSelectCurrentNew)
self.projectAct.addAction(self.ui.actionSelectCurrentNone)
self.projectAct.addAction(self.ui.actionSelectCurrentNon_associated)
self.projectAct.addAction(self.ui.actionSelectCurrentAssociated)
self.projectAct.addAction(self.ui.actionSelectCurrentInvert)
self.projectAct.addAction(self.ui.actionEdit_timing)
self.projectAct.addAction(self.ui.actionEdit_scales)
self.projectAct.addAction(self.ui.actionCompute_growth)
self.projectAct.addAction(self.ui.actionClean_cells)
self.projectAct.addAction(self.ui.actionGotoCell)
self.projectAct.setEnabled(False)
current_sel_actions = [
self.ui.actionSelectCurrentAll, self.ui.actionSelectCurrentNew,
self.ui.actionSelectCurrentNone, self.ui.actionSelectCurrentInvert,
'-', self.ui.actionSelectCurrentNon_associated,
self.ui.actionSelectCurrentAssociated,
self.ui.actionCopy_selection_from_Previous
]
previous_sel_actions = [
self.ui.actionSelectPreviousAll, self.ui.actionSelectPreviousNew,
self.ui.actionSelectPreviousNone,
self.ui.actionSelectPreviousInvert, '-',
self.ui.actionSelectPreviousNon_associated,
self.ui.actionSelectPreviousAssociated,
self.ui.actionCopy_selection_from_Current
]
self._previousScene = TrackingScene(self.undo_stack,
self.ui.actionDelete_Previous,
previous_sel_actions, self)
self._currentScene = LinkedTrackingScene(self._previousScene,
self.undo_stack,
self.ui.actionDelete_Current,
current_sel_actions, self)
self._previousScene.hasSelectionChanged.connect(
self.previousSelAct.setEnabled)
self._currentScene.hasSelectionChanged.connect(
self.currentSelAct.setEnabled)
self._previousScene.realSceneSizeChanged.connect(self.sceneSizeChanged)
self._currentScene.realSceneSizeChanged.connect(self.sceneSizeChanged)
self._previousScene.zoomIn[QPointF].connect(self.zoomIn)
self._currentScene.zoomIn.connect(self.zoomIn)
self._previousScene.zoomOut[QPointF].connect(self.zoomOut)
self._currentScene.zoomOut.connect(self.zoomOut)
self.ui.previousData.setScene(self._previousScene)
self.ui.currentData.setScene(self._currentScene)
self.ui.previousData.setDragMode(QGraphicsView.ScrollHandDrag)
self.ui.currentData.setDragMode(QGraphicsView.ScrollHandDrag)
#self.ui.previousData.setCacheMode(QGraphicsView.CacheBackground)
#self.ui.currentData.setCacheMode(QGraphicsView.CacheBackground)
# Redefine shortcuts to standard key sequences
self.ui.action_Save.setShortcut(QKeySequence.Save)
self.ui.actionSave_as.setShortcut(QKeySequence.SaveAs)
self.ui.action_Open_project.setShortcut(QKeySequence.Open)
self.ui.action_Undo.setShortcut(QKeySequence.Undo)
self.ui.action_Redo.setShortcut(QKeySequence.Redo)
self.ui.action_Next_image.setShortcut(QKeySequence.Forward)
self.ui.action_Previous_image.setShortcut(QKeySequence.Back)
# Connecting undo stack signals
self.ui.action_Undo.triggered.connect(self.undo)
self.ui.action_Redo.triggered.connect(self.redo)
self.undo_stack.canRedoChanged[bool].connect(
self.ui.action_Redo.setEnabled)
self.undo_stack.canUndoChanged[bool].connect(
self.ui.action_Undo.setEnabled)
self.undo_stack.redoTextChanged["const QString&"].connect(
self.changeRedoText)
self.undo_stack.undoTextChanged["const QString&"].connect(
self.changeUndoText)
self.undo_stack.cleanChanged[bool].connect(
self.ui.action_Save.setDisabled)
# link_icon = QIcon()
# pix = QPixmap(":/icons/link.png")
# link_icon.addPixmap(pix, QIcon.Normal, QIcon.On)
# pix = QPixmap(":/icons/link_broken.png")
# link_icon.addPixmap(pix, QIcon.Normal, QIcon.Off)
# self.link_icon = link_icon
# #self.ui.linkViews.setIconSize(QSize(64,32))
# self.ui.linkViews.setIcon(link_icon)
self._recent_projects_menu = QMenu(self)
self.ui.actionRecent_projects.setMenu(self._recent_projects_menu)
self._recent_projects_act = []
self._projects_mapper = QSignalMapper(self)
self._projects_mapper.mapped[int].connect(self.loadRecentProject)
self.param_dlg = None
# Setting up the status bar
bar = self.statusBar()
# Adding current directory
cur_dir = QLabel("")
bar.addPermanentWidget(cur_dir)
self._current_dir_label = cur_dir
# Adding up zoom
zoom = QLabel("")
bar.addPermanentWidget(zoom)
self._zoom_label = zoom
self.changeZoom(1)
self.loadConfig()
parameters.instance.renderingChanged.connect(self.changeRendering)
self.changeRendering()
def changeRendering(self):
if parameters.instance.use_OpenGL:
self.ui.previousData.setViewport(
QGLWidget(QGLFormat(QGL.SampleBuffers)))
self.ui.currentData.setViewport(
QGLWidget(QGLFormat(QGL.SampleBuffers)))
else:
self.ui.previousData.setViewport(QWidget())
self.ui.currentData.setViewport(QWidget())
def undo(self):
self.undo_stack.undo()
def redo(self):
self.undo_stack.redo()
def changeRedoText(self, text):
self.ui.action_Redo.setText(text)
self.ui.action_Redo.setToolTip(text)
self.ui.action_Redo.setStatusTip(text)
def changeUndoText(self, text):
self.ui.action_Undo.setText(text)
self.ui.action_Undo.setToolTip(text)
self.ui.action_Undo.setStatusTip(text)
def closeEvent(self, event):
self.saveConfig()
if not self.ensure_save_data(
"Exiting whith unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to exit?"):
event.ignore()
return
QMainWindow.closeEvent(self, event)
#sys.exit(0)
def loadConfig(self):
params = parameters.instance
self.ui.action_Show_vector.setChecked(params.show_vectors)
self.ui.linkViews.setChecked(params.link_views)
self.ui.action_Show_template.setChecked(
parameters.instance.show_template)
self.ui.actionShow_id.setChecked(parameters.instance.show_id)
self.ui.action_Estimate_position.setChecked(
parameters.instance.estimate)
self.updateRecentFiles()
params.recentProjectsChange.connect(self.updateRecentFiles)
def updateRecentFiles(self):
for a in self._recent_projects_act:
self._projects_mapper.removeMappings(a)
del self._recent_projects_act[:]
menu = self._recent_projects_menu
menu.clear()
recent_projects = parameters.instance.recent_projects
for i, p in enumerate(recent_projects):
act = QAction(self)
act.setText("&{0:d} {1}".format(i + 1, p))
self._recent_projects_act.append(act)
act.triggered.connect(self._projects_mapper.map)
self._projects_mapper.setMapping(act, i)
menu.addAction(act)
def saveConfig(self):
parameters.instance.save()
def check_for_data(self):
if self._project is None:
QMessageBox.critical(
self, "No project loaded",
"You have to load a project before performing this operation")
return False
return True
def loadRecentProject(self, i):
if self.ensure_save_data(
"Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change project?"):
self.loadProject(parameters.instance.recent_projects[i])
@pyqtSignature("")
def on_action_Open_project_triggered(self):
if self.ensure_save_data(
"Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change project?"):
dir_ = QFileDialog.getExistingDirectory(
self, "Select a project directory",
parameters.instance._last_dir)
if dir_:
self.loadProject(dir_)
def loadProject(self, dir_):
dir_ = path(dir_)
project = Project(dir_)
if project.valid:
self._project = project
else:
create = QMessageBox.question(
self, "Invalid project directory",
"This directory does not contain a valid project. Turn into a directory?",
QMessageBox.No, QMessageBox.Yes)
if create == QMessageBox.No:
return
project.create()
self._project = project
self._project.use()
parameters.instance.add_recent_project(dir_)
parameters.instance._last_dir = dir_
if self._data is not None:
_data = self._data
_data.saved.disconnect(self.undo_stack.setClean)
try:
#self._project.load()
self.load_data()
_data = self._project.data
_data.saved.connect(self.undo_stack.setClean)
self._project.changedDataFile.connect(self.dataFileChanged)
self._data = _data
self._previousScene.changeDataManager(self._data)
self._currentScene.changeDataManager(self._data)
self.initFromData()
self.projectAct.setEnabled(True)
except TrackingDataException as ex:
showException(self, "Error while loaded data", ex)
def dataFileChanged(self, new_file):
if new_file is None:
self._current_dir_label.setText("")
else:
self._current_dir_label.setText(new_file)
def initFromData(self):
"""
Initialize the interface using the current data
"""
self.ui.previousState.clear()
self.ui.currentState.clear()
for name in self._data.images_name:
self.ui.previousState.addItem(name)
self.ui.currentState.addItem(name)
self.ui.previousState.setCurrentIndex(0)
self.ui.currentState.setCurrentIndex(1)
self._previousScene.changeImage(
self._data.image_path(self._data.images_name[0]))
self._currentScene.changeImage(
self._data.image_path(self._data.images_name[1]))
self.dataFileChanged(self._project.data_file)
@pyqtSignature("int")
def on_previousState_currentIndexChanged(self, index):
#print "Previous image loaded: %s" % self._data.images[index]
self.changeScene(self._previousScene, index)
self._currentScene.changeImage(None)
@pyqtSignature("int")
def on_currentState_currentIndexChanged(self, index):
#print "Current image loaded: %s" % self._data.images[index]
self.changeScene(self._currentScene, index)
def changeScene(self, scene, index):
"""
Set the scene to use the image number index.
"""
scene.changeImage(self._data.image_path(self._data.images_name[index]))
@pyqtSignature("")
def on_action_Save_triggered(self):
self.save_data()
@pyqtSignature("")
def on_actionSave_as_triggered(self):
fn = QFileDialog.getSaveFileName(self, "Select a data file to save in",
self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
self.save_data(path(fn))
def save_data(self, data_file=None):
if self._data is None:
raise TrackingDataException(
"Trying to save data when none have been loaded")
try:
self._project.save(data_file)
return True
except TrackingDataException as ex:
showException(self, "Error while saving data", ex)
return False
def load_data(self, **opts):
if self._project is None:
raise TrackingDataException(
"Trying to load data when no project have been loaded")
try:
if self._project.load(**opts):
log_debug("Data file was corrected. Need saving.")
self.ui.action_Save.setEnabled(True)
else:
log_debug("Data file is clean.")
self.ui.action_Save.setEnabled(False)
return True
except TrackingDataException as ex:
showException(self, "Error while loading data", ex)
return False
except RetryTrackingDataException as ex:
if retryException(self, "Problem while loading data", ex):
new_opts = dict(opts)
new_opts.update(ex.method_args)
return self.load_data(**new_opts)
return False
def ensure_save_data(self, title, reason):
if self._data is not None and not self.undo_stack.isClean():
button = QMessageBox.warning(
self, title, reason,
QMessageBox.Yes | QMessageBox.Save | QMessageBox.Cancel)
if button == QMessageBox.Save:
return self.save_data()
elif button == QMessageBox.Cancel:
return False
self.undo_stack.clear()
return True
@pyqtSignature("")
def on_action_Change_data_file_triggered(self):
if self.ensure_save_data(
"Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change the current data file?"):
fn = QFileDialog.getOpenFileName(
self, "Select a data file to load", self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
self._project.data_file = str(fn)
if self.load_data():
self._previousScene.resetNewPoints()
self._currentScene.resetNewPoints()
@pyqtSignature("bool")
def on_action_Show_vector_toggled(self, value):
parameters.instance.show_vector = value
self._currentScene.showVector(value)
@pyqtSignature("bool")
def on_action_Show_template_toggled(self, value):
parameters.instance.show_template = value
@pyqtSignature("bool")
def on_actionShow_id_toggled(self, value):
parameters.instance.show_id = value
@pyqtSignature("")
def on_action_Next_image_triggered(self):
cur = self.ui.currentState.currentIndex()
pre = self.ui.previousState.currentIndex()
l = len(self._data.images_name)
if cur < l - 1 and pre < l - 1:
self.ui.previousState.setCurrentIndex(pre + 1)
self.ui.currentState.setCurrentIndex(cur + 1)
@pyqtSignature("")
def on_action_Previous_image_triggered(self):
cur = self.ui.currentState.currentIndex()
pre = self.ui.previousState.currentIndex()
if cur > 0 and pre > 0:
self.ui.previousState.setCurrentIndex(pre - 1)
self.ui.currentState.setCurrentIndex(cur - 1)
@pyqtSignature("")
def on_copyToPrevious_clicked(self):
self._currentScene.copyFromLinked(self._previousScene)
@pyqtSignature("")
def on_copyToCurrent_clicked(self):
self._previousScene.copyToLinked(self._currentScene)
@pyqtSignature("bool")
def on_action_Estimate_position_toggled(self, value):
parameters.instance.estimate = value
# @pyqtSignature("")
# def on_action_Undo_triggered(self):
# print "Undo"
# @pyqtSignature("")
# def on_action_Redo_triggered(self):
# print "Redo"
@pyqtSignature("bool")
def on_action_Parameters_toggled(self, value):
if value:
from .parametersdlg import ParametersDlg
self._previousScene.showTemplates()
self._currentScene.showTemplates()
#tracking_scene.saveParameters()
parameters.instance.save()
max_size = max(self._currentScene.width(),
self._currentScene.height(),
self._previousScene.width(),
self._previousScene.height(), 400)
self.param_dlg = ParametersDlg(max_size, self)
self.param_dlg.setModal(False)
self.ui.action_Pan.setChecked(True)
self.ui.actionAdd_point.setEnabled(False)
self.ui.action_Move_point.setEnabled(False)
self.ui.actionAdd_cell.setEnabled(False)
self.ui.actionRemove_cell.setEnabled(False)
self.ui.action_Undo.setEnabled(False)
self.ui.action_Redo.setEnabled(False)
self.ui.action_Open_project.setEnabled(False)
self.ui.actionRecent_projects.setEnabled(False)
self.ui.action_Change_data_file.setEnabled(False)
self.ui.copyToCurrent.setEnabled(False)
self.ui.copyToPrevious.setEnabled(False)
self.param_dlg.finished[int].connect(self.closeParam)
self.param_dlg.show()
elif self.param_dlg:
self.param_dlg.accept()
def closeParam(self, value):
if value == QDialog.Rejected:
parameters.instance.load()
self.ui.actionAdd_point.setEnabled(True)
self.ui.action_Move_point.setEnabled(True)
self.ui.actionAdd_cell.setEnabled(True)
self.ui.actionRemove_cell.setEnabled(True)
self.ui.action_Undo.setEnabled(True)
self.ui.action_Redo.setEnabled(True)
self.ui.action_Open_project.setEnabled(True)
self.ui.actionRecent_projects.setEnabled(True)
self.ui.action_Change_data_file.setEnabled(True)
self.ui.copyToCurrent.setEnabled(True)
self.ui.copyToPrevious.setEnabled(True)
self._previousScene.showTemplates(False)
self._currentScene.showTemplates(False)
self._previousScene.update()
self._currentScene.update()
self.param_dlg = None
self.ui.action_Parameters.setChecked(False)
@pyqtSignature("bool")
def on_actionZoom_in_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.ZoomIn
self._currentScene.mode = TrackingScene.ZoomIn
@pyqtSignature("bool")
def on_actionZoom_out_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.ZoomOut
self._currentScene.mode = TrackingScene.ZoomOut
#def resizeEvent(self, event):
# self.ensureZoomFit()
def ensureZoomFit(self):
if self._data:
prev_rect = self._previousScene.sceneRect()
cur_rect = self._currentScene.sceneRect()
prev_wnd = QRectF(self.ui.previousData.childrenRect())
cur_wnd = QRectF(self.ui.currentData.childrenRect())
prev_matrix = self.ui.previousData.matrix()
cur_matrix = self.ui.currentData.matrix()
prev_mapped_rect = prev_matrix.mapRect(prev_rect)
cur_mapped_rect = cur_matrix.mapRect(cur_rect)
if (prev_mapped_rect.width() < prev_wnd.width()
or prev_mapped_rect.height() < prev_wnd.height()
or cur_mapped_rect.width() < cur_wnd.width()
or cur_mapped_rect.height() < cur_wnd.height()):
self.on_action_Fit_triggered()
@pyqtSignature("")
def on_action_Fit_triggered(self):
prev_rect = self._previousScene.sceneRect()
cur_rect = self._currentScene.sceneRect()
prev_wnd = self.ui.previousData.childrenRect()
cur_wnd = self.ui.currentData.childrenRect()
prev_sw = prev_wnd.width() / prev_rect.width()
prev_sh = prev_wnd.height() / prev_rect.height()
cur_sw = cur_wnd.width() / cur_rect.width()
cur_sh = cur_wnd.height() / cur_rect.height()
s = max(prev_sw, prev_sh, cur_sw, cur_sh)
self.ui.previousData.resetMatrix()
self.ui.previousData.scale(s, s)
self.ui.currentData.resetMatrix()
self.ui.currentData.scale(s, s)
self.changeZoom(s)
def zoomOut(self, point=None):
self.ui.currentData.scale(0.5, 0.5)
self.ui.previousData.scale(0.5, 0.5)
self.changeZoom(self.ui.previousData.matrix().m11())
if point is not None:
self.ui.previousData.centerOn(point)
self.ui.currentData.centerOn(point)
#self.ensureZoomFit()
def zoomIn(self, point=None):
self.ui.currentData.scale(2, 2)
self.ui.previousData.scale(2, 2)
self.changeZoom(self.ui.previousData.matrix().m11())
if point is not None:
self.ui.previousData.centerOn(point)
self.ui.currentData.centerOn(point)
def changeZoom(self, zoom):
self._zoom_label.setText("Zoom: %.5g%%" % (100 * zoom))
@pyqtSignature("")
def on_actionZoom_100_triggered(self):
self.ui.previousData.resetMatrix()
self.ui.currentData.resetMatrix()
self.changeZoom(1)
@pyqtSignature("bool")
def on_actionAdd_point_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Add
self._currentScene.mode = TrackingScene.Add
@pyqtSignature("bool")
def on_actionAdd_cell_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.AddCell
self._currentScene.mode = TrackingScene.AddCell
@pyqtSignature("bool")
def on_actionRemove_cell_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.RemoveCell
self._currentScene.mode = TrackingScene.RemoveCell
@pyqtSignature("bool")
def on_action_Move_point_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Move
self._currentScene.mode = TrackingScene.Move
@pyqtSignature("bool")
def on_action_Pan_toggled(self, value):
if value:
self._previousScene.mode = TrackingScene.Pan
self._currentScene.mode = TrackingScene.Pan
@pyqtSignature("bool")
def on_linkViews_toggled(self, value):
parameters.instance.link_views = value
phor = self.ui.previousData.horizontalScrollBar()
pver = self.ui.previousData.verticalScrollBar()
chor = self.ui.currentData.horizontalScrollBar()
cver = self.ui.currentData.verticalScrollBar()
if value:
phor.valueChanged[int].connect(chor.setValue)
pver.valueChanged[int].connect(cver.setValue)
chor.valueChanged[int].connect(phor.setValue)
cver.valueChanged[int].connect(pver.setValue)
self._previousScene.templatePosChange.connect(
self._currentScene.setTemplatePos)
self._currentScene.templatePosChange.connect(
self._previousScene.setTemplatePos)
phor.setValue(chor.value())
pver.setValue(cver.value())
else:
phor.valueChanged[int].disconnect(chor.setValue)
pver.valueChanged[int].disconnect(cver.setValue)
chor.valueChanged[int].disconnect(phor.setValue)
cver.valueChanged[int].disconnect(pver.setValue)
self._previousScene.templatePosChange.disconnect(
self._currentScene.setTemplatePos)
self._currentScene.templatePosChange.disconnect(
self._previousScene.setTemplatePos)
def copyFrom(self, start, items):
if parameters.instance.estimate:
dlg = createForm('copy_progress.ui', None)
dlg.buttonBox.clicked["QAbstractButton*"].connect(self.cancelCopy)
params = parameters.instance
ts = params.template_size
ss = params.search_size
fs = params.filter_size
self.copy_thread = algo.FindInAll(self._data, start, items, ts, ss,
fs, self)
dlg.imageProgress.setMaximum(self.copy_thread.num_images)
self.copy_thread.start()
self.copy_dlg = dlg
dlg.exec_()
else:
algo.copyFromImage(self._data, start, items, self.undo_stack)
def cancelCopy(self, *args):
self.copy_thread.stop = True
dlg = self.copy_dlg
dlg.buttonBox.clicked['QAbstractButton*)'].disconnect(self.cancelCopy)
self._previousScene.changeImage(None)
self._currentScene.changeImage(None)
def event(self, event):
if isinstance(event, algo.NextImage):
dlg = self.copy_dlg
if dlg is not None:
dlg.imageProgress.setValue(event.currentImage)
dlg.pointProgress.setMaximum(event.nbPoints)
dlg.pointProgress.setValue(0)
return True
elif isinstance(event, algo.NextPoint):
dlg = self.copy_dlg
if dlg is not None:
dlg.pointProgress.setValue(event.currentPoint)
return True
elif isinstance(event, algo.FoundAll):
dlg = self.copy_dlg
if dlg is not None:
self.cancelCopy()
dlg.accept()
return True
elif isinstance(event, algo.Aborted):
dlg = self.copy_dlg
if dlg is not None:
self.cancelCopy()
dlg.accept()
return True
return QMainWindow.event(self, event)
def itemsToCopy(self, scene):
items = scene.getSelectedIds()
if items:
answer = QMessageBox.question(
self, "Copy of points",
"Some points were selected in the previous data window."
" Do you want to copy only these point on the successive images?",
QMessageBox.Yes, QMessageBox.No)
if answer == QMessageBox.Yes:
return items
return scene.getAllIds()
@pyqtSignature("")
def on_actionCopy_from_previous_triggered(self):
items = self.itemsToCopy(self._previousScene)
if items:
self.copyFrom(self.ui.previousState.currentIndex(), items)
@pyqtSignature("")
def on_actionCopy_from_current_triggered(self):
items = self.itemsToCopy(self._currentScene)
if items:
self.copyFrom(self.ui.currentState.currentIndex(), items)
@pyqtSignature("")
def on_actionSelectPreviousAll_triggered(self):
self._previousScene.selectAll()
@pyqtSignature("")
def on_actionSelectPreviousNew_triggered(self):
self._previousScene.selectNew()
@pyqtSignature("")
def on_actionSelectPreviousNone_triggered(self):
self._previousScene.selectNone()
@pyqtSignature("")
def on_actionSelectPreviousNon_associated_triggered(self):
self._previousScene.selectNonAssociated()
@pyqtSignature("")
def on_actionSelectPreviousAssociated_triggered(self):
self._previousScene.selectAssociated()
@pyqtSignature("")
def on_actionSelectPreviousInvert_triggered(self):
self._previousScene.selectInvert()
@pyqtSignature("")
def on_actionSelectCurrentAll_triggered(self):
self._currentScene.selectAll()
@pyqtSignature("")
def on_actionSelectCurrentNew_triggered(self):
self._currentScene.selectNew()
@pyqtSignature("")
def on_actionSelectCurrentNone_triggered(self):
self._currentScene.selectNone()
@pyqtSignature("")
def on_actionSelectCurrentNon_associated_triggered(self):
self._currentScene.selectNonAssociated()
@pyqtSignature("")
def on_actionSelectCurrentAssociated_triggered(self):
self._currentScene.selectAssociated()
@pyqtSignature("")
def on_actionSelectCurrentInvert_triggered(self):
self._currentScene.selectInvert()
def whichDelete(self):
"""
Returns a function deleting what the user wants
"""
dlg = createForm("deletedlg.ui", None)
ret = dlg.exec_()
if ret:
if dlg.inAllImages.isChecked():
return TrackingScene.deleteInAllImages
if dlg.toImage.isChecked():
return TrackingScene.deleteToImage
if dlg.fromImage.isChecked():
return TrackingScene.deleteFromImage
return lambda x: None
@pyqtSignature("")
def on_actionDelete_Previous_triggered(self):
del_fct = self.whichDelete()
del_fct(self._previousScene)
@pyqtSignature("")
def on_actionDelete_Current_triggered(self):
del_fct = self.whichDelete()
del_fct(self._currentScene)
@pyqtSignature("")
def on_actionMerge_points_triggered(self):
if self._previousScene.mode == TrackingScene.AddCell:
old_cell = self._previousScene.selected_cell
new_cell = self._currentScene.selected_cell
if old_cell is None or new_cell is None:
QMessageBox.critical(
self, "Cannot merge cells",
"You have to select exactly one cell in the old state "
"and one in the new state to merge them.")
return
try:
if old_cell != new_cell:
self.undo_stack.push(
MergeCells(self._data, self._previousScene.image_name,
old_cell, new_cell))
else:
self.undo_stack.push(
SplitCells(self._data, self._previousScene.image_name,
old_cell, new_cell))
except AssertionError as error:
QMessageBox.critical(self, "Cannot merge the cells",
str(error))
else:
old_pts = self._previousScene.getSelectedIds()
new_pts = self._currentScene.getSelectedIds()
if len(old_pts) != 1 or len(new_pts) != 1:
QMessageBox.critical(
self, "Cannot merge points",
"You have to select exactly one point in the old state "
"and one in the new state to link them.")
return
try:
if old_pts != new_pts:
self.undo_stack.push(
ChangePointsId(self._data,
self._previousScene.image_name, old_pts,
new_pts))
else:
log_debug("Splitting point of id %d" % old_pts[0])
self.undo_stack.push(
SplitPointsId(self._data,
self._previousScene.image_name, old_pts))
except AssertionError as error:
QMessageBox.critical(self, "Cannot merge the points",
str(error))
@pyqtSignature("")
def on_actionCopy_selection_from_Current_triggered(self):
cur_sel = self._currentScene.getSelectedIds()
self._previousScene.setSelectedIds(cur_sel)
@pyqtSignature("")
def on_actionCopy_selection_from_Previous_triggered(self):
cur_sel = self._previousScene.getSelectedIds()
self._currentScene.setSelectedIds(cur_sel)
@pyqtSignature("")
def on_actionNew_data_file_triggered(self):
if self.ensure_save_data(
"Leaving unsaved data",
"The last modifications you made were not saved."
" Are you sure you want to change the current data file?"):
fn = QFileDialog.getSaveFileName(
self, "Select a new data file to create",
self._project.data_dir, "CSV Files (*.csv);;All files (*.*)")
if fn:
fn = path(fn)
if fn.exists():
button = QMessageBox.question(
self, "Erasing existing file",
"Are you sure yo want to empty the file '%s' ?" % fn,
QMessageBox.Yes, QMessageBox.No)
if button == QMessageBox.No:
return
fn.remove()
self._data.clear()
self._previousScene.resetNewPoints()
self._currentScene.resetNewPoints()
self._project.data_file = fn
self.initFromData()
log_debug("Data file = %s" % (self._project.data_file, ))
@pyqtSignature("")
def on_actionAbout_triggered(self):
dlg = QMessageBox(self)
dlg.setWindowTitle("About Point Tracker")
dlg.setIconPixmap(self.windowIcon().pixmap(64, 64))
#dlg.setTextFormat(Qt.RichText)
dlg.setText("""Point Tracker Tool version %s rev %s
Developper: Pierre Barbier de Reuille <*****@*****.**>
Copyright 2008
""" % (__version__, __revision__))
img_read = ", ".join(
str(s) for s in QImageReader.supportedImageFormats())
img_write = ", ".join(
str(s) for s in QImageWriter.supportedImageFormats())
dlg.setDetailedText("""Supported image formats:
- For reading: %s
- For writing: %s
""" % (img_read, img_write))
dlg.exec_()
@pyqtSignature("")
def on_actionAbout_Qt_triggered(self):
QMessageBox.aboutQt(self, "About Qt")
@pyqtSignature("")
def on_actionReset_alignment_triggered(self):
self.undo_stack.push(ResetAlignment(self._data))
@pyqtSignature("")
def on_actionAlign_images_triggered(self):
fn = QFileDialog.getOpenFileName(self,
"Select a data file for alignment",
self._project.data_dir,
"CSV Files (*.csv);;All files (*.*)")
if fn:
d = self._data.copy()
fn = path(fn)
try:
d.load(fn)
except TrackingDataException as ex:
showException(self, "Error while loading data file", ex)
return
if d._last_pt_id > 0:
dlg = AlignmentDlg(d._last_pt_id + 1, self)
if dlg.exec_():
ref = dlg.ui.referencePoint.currentText()
try:
ref = int(ref)
except ValueError:
ref = str(ref)
if dlg.ui.twoPointsRotation.isChecked():
r1 = int(dlg.ui.rotationPt1.currentText())
r2 = int(dlg.ui.rotationPt2.currentText())
rotation = ("TwoPoint", r1, r2)
else:
rotation = None
else:
return
else:
ref = 0
rotation = None
try:
shifts, angles = algo.alignImages(self._data, d, ref, rotation)
self.undo_stack.push(AlignImages(self._data, shifts, angles))
except algo.AlgoException as ex:
showException(self, "Error while aligning images", ex)
def sceneSizeChanged(self):
previous_rect = self._previousScene.real_scene_rect
current_rect = self._currentScene.real_scene_rect
rect = previous_rect | current_rect
self._previousScene.setSceneRect(rect)
self._currentScene.setSceneRect(rect)
@pyqtSignature("")
def on_actionEdit_timing_triggered(self):
data = self._data
dlg = TimeEditDlg(data.images_name, data.images_time,
[data.image_path(n) for n in data.images_name], self)
self.current_dlg = dlg
if dlg.exec_() == QDialog.Accepted:
self.undo_stack.push(ChangeTiming(data, [t for n, t in dlg.model]))
del self.current_dlg
@pyqtSignature("")
def on_actionEdit_scales_triggered(self):
data = self._data
dlg = EditResDlg(data.images_name, data.images_scale,
[data.image_path(n) for n in data.images_name], self)
self.current_dlg = dlg
if dlg.exec_() == QDialog.Accepted:
self.undo_stack.push(
ChangeScales(data, [sc for n, sc in dlg.model]))
del self.current_dlg
@pyqtSignature("")
def on_actionCompute_growth_triggered(self):
data = self._data
dlg = GrowthComputationDlg(data, self)
self.current_dlg = dlg
dlg.exec_()
del self.current_dlg
@pyqtSignature("")
def on_actionPlot_growth_triggered(self):
data = self._data
dlg = PlottingDlg(data, self)
self.current_dlg = dlg
dlg.exec_()
del self.current_dlg
@pyqtSignature("")
def on_actionClean_cells_triggered(self):
self.undo_stack.push(CleanCells(self._data))
@pyqtSignature("")
def on_actionGotoCell_triggered(self):
cells = [str(cid) for cid in self._data.cells]
selected, ok = QInputDialog.getItem(self, "Goto cell",
"Select the cell to go to", cells,
0)
if ok:
cid = int(selected)
self.ui.actionAdd_cell.setChecked(True)
data = self._data
if cid not in data.cells:
return
ls = data.cells_lifespan[cid]
prev_pos = self._previousScene.current_data._current_index
cur_pos = self._currentScene.current_data._current_index
full_poly = data.cells[cid]
poly = [pid for pid in full_poly if pid in data[prev_pos]]
#log_debug("Cell %d on time %d: %s" % (cid, prev_pos, poly))
if prev_pos < ls.start or prev_pos >= ls.end or not poly:
for i in range(*ls.slice().indices(len(data))):
poly = [pid for pid in full_poly if pid in data[i]]
if poly:
log_debug("Found cell %d on image %d with polygon %s" %
(cid, i, poly))
new_prev_pos = i
break
else:
log_debug("Cell %d found nowhere in range %s!!!" %
(cid, ls.slice()))
else:
new_prev_pos = prev_pos
new_cur_pos = min(max(cur_pos + new_prev_pos - prev_pos, 0),
len(data))
self.ui.previousState.setCurrentIndex(new_prev_pos)
self.ui.currentState.setCurrentIndex(new_cur_pos)
self._previousScene.current_cell = cid
self._currentScene.current_cell = cid
prev_data = self._previousScene.current_data
poly = data.cells[cid]
prev_poly = QPolygonF(
[prev_data[ptid] for ptid in poly if ptid in prev_data])
prev_bbox = prev_poly.boundingRect()
log_debug("Previous bounding box = %dx%d+%d+%d" %
(prev_bbox.width(), prev_bbox.height(), prev_bbox.left(),
prev_bbox.top()))
self.ui.previousData.ensureVisible(prev_bbox)
@pyqtSignature("")
def on_actionGotoPoint_triggered(self):
data = self._data
points = [str(pid) for pid in data.cell_points]
selected, ok = QInputDialog.getItem(self, "Goto point",
"Select the point to go to",
points, 0)
if ok:
pid = int(selected)
self.ui.action_Move_point.setChecked(True)
if pid not in data.cell_points:
return
prev_pos = self._previousScene.current_data._current_index
cur_pos = self._currentScene.current_data._current_index
prev_data = self._previousScene.current_data
if not pid in prev_data:
closest = -1
best_dist = len(data) + 1
for img_data in data:
if pid in img_data:
dist = abs(img_data._current_index - prev_pos)
if dist < best_dist:
best_dist = dist
closest = img_data._current_index
new_prev_pos = closest
else:
new_prev_pos = prev_pos
new_cur_pos = min(max(cur_pos + new_prev_pos - prev_pos, 0),
len(data))
self.ui.previousState.setCurrentIndex(new_prev_pos)
self.ui.currentState.setCurrentIndex(new_cur_pos)
self._previousScene.setSelectedIds([pid])
self._currentScene.setSelectedIds([pid])
self.ui.previousData.centerOn(
self._previousScene.current_data[pid])
