def paintEvent(self, event):
'''
@param: event QPaintEvent
'''
super().paintEvent(event)
# Show loading progress
if gVar.appSettings.showLoadingProgress and self._progressVisible:
option = QStyleOptionFrame()
self.initStyleOption(option)
lm, tm, rm, bm = self.getTextMargins()
contentsRect = self.style().subElementRect(
QStyle.SE_LineEditContents, option, self)
contentsRect.adjust(lm, tm, -rm, -bm)
bg = QColor(self._progressColor)
if not bg.isValid() or bg.alpha() == 0:
pal = self.palette()
bg = Colors.mid(pal.color(QPalette.Base),
pal.color(QPalette.Text),
self._progressStyle > 0 and 4 or 8, 1)
p = QPainter(self)
p.setBrush(QBrush(bg))
# We are painting over text, make sure the text stays visible
p.setOpacity(0.5)
outlinePen = QPen(bg.darker(110), 0.8)
p.setPen(outlinePen)
if self._progressStyle == self._ProgressFilled:
bar = contentsRect.adjusted(0, 1, 0, -1)
bar.setWidth(int(bar.width() * self._loadProgress / 100))
roundness = bar.height() / 4.0
p.drawRoundedRect(bar, roundness, roundness)
elif self._progressStyle == self._ProgressBottom:
outlinePen.setWidthF(0.3)
outlinePen.setColor(outlinePen.color().darker(130))
p.setPen(outlinePen)
bar = QRect(contentsRect.x(),
contentsRect.bottom() - 3,
contentsRect.width() * self._loadProgress / 100.0,
3)
p.drawRoundedRect(bar, 1, 1)
elif self._progressStyle == self._ProgressTop:
outlinePen.setWidthF(0.3)
outlinePen.setColor(outlinePen.color().darker(130))
p.setPen(outlinePen)
bar = QRect(contentsRect.x(),
contentsRect.top() + 1,
contentsRect.width() * self._loadProgress / 100.0,
3)
p.drawRoundedRect(bar, 1, 1)
class ImageController(QFrame):
"""An ImageController is a widget for controlling the display of one image.
It can emit the following signals from the image:
raise raise button was clicked
center center-on-image option was selected
unload unload option was selected
slice image slice has changed, need to redraw (emitted by SkyImage automatically)
repaint image display range or colormap has changed, need to redraw (emitted by SkyImage automatically)
"""
# image signals
imageSignalRepaint = pyqtSignal()
imageSignalSlice = pyqtSignal(tuple)
imageSignalRaise = pyqtSignal([FITSImagePlotItem])
imageSignalUnload = pyqtSignal(object)
imageSignalCenter = pyqtSignal(object)
def __init__(self, image, parent, imgman, name=None, save=False):
QFrame.__init__(self, parent)
self.setFrameStyle(QFrame.StyledPanel | QFrame.Raised)
# init state
self._border_pen = None
self._image_label_text = None
self._subset = None
self.image = image
self._imgman = imgman
self._currier = PersistentCurrier()
self._control_dialog = None
# create widgets
self._lo = lo = QHBoxLayout(self)
lo.setContentsMargins(0, 0, 0, 0)
lo.setSpacing(2)
# raise button
self._wraise = QToolButton(self)
lo.addWidget(self._wraise)
self._wraise.setIcon(pixmaps.raise_up.icon())
self._wraise.setAutoRaise(True)
self._can_raise = False
self._wraise.clicked.connect(self._raiseButtonPressed)
self._wraise.setToolTip(
"""<P>Click here to raise this image above other images. Hold the button down briefly to
show a menu of image operations.</P>""")
# center label
self._wcenter = QLabel(self)
self._wcenter.setPixmap(pixmaps.center_image.pm())
self._wcenter.setToolTip(
"<P>The plot is currently centered on (the reference pixel %d,%d) of this image.</P>"
% self.image.referencePixel())
lo.addWidget(self._wcenter)
# name/filename label
self.name = image.name
self._wlabel = QLabel(self.name, self)
self._number = 0
self.setName(self.name)
self._wlabel.setToolTip(
"%s %s" %
(image.filename, "\u00D7".join(map(str,
image.data().shape))))
lo.addWidget(self._wlabel, 1)
# if 'save' is specified, create a "save" button
if save:
self._wsave = QToolButton(self)
lo.addWidget(self._wsave)
self._wsave.setText("save")
self._wsave.setAutoRaise(True)
self._save_dir = save if isinstance(save, str) else "."
self._wsave.clicked.connect(self._saveImage)
self._wsave.setToolTip(
"""<P>Click here to write this image to a FITS file.</P>""")
# render control
self.image.connectRepaint(self.imageSignalRepaint)
self.image.connectSlice(self.imageSignalSlice)
self.image.connectRaise(self.imageSignalRaise)
self.image.connectUnload(self.imageSignalUnload)
self.image.connectCenter(self.imageSignalCenter)
dprint(2, "creating RenderControl")
self._rc = RenderControl(image, self)
dprint(2, "done")
# selectors for extra axes
self._wslicers = []
curslice = self._rc.currentSlice(
) # this may be loaded from config, so not necessarily 0
for iextra, axisname, labels in self._rc.slicedAxes():
if axisname.upper() not in ["STOKES", "COMPLEX"]:
lbl = QLabel("%s:" % axisname, self)
lo.addWidget(lbl)
else:
lbl = None
slicer = QComboBox(self)
self._wslicers.append(slicer)
lo.addWidget(slicer)
slicer.addItems(labels)
slicer.setToolTip(
"""<P>Selects current slice along the %s axis.</P>""" %
axisname)
slicer.setCurrentIndex(curslice[iextra])
slicer.activated[int].connect(
self._currier.curry(self._rc.changeSlice, iextra))
# min/max display ranges
lo.addSpacing(5)
self._wrangelbl = QLabel(self)
lo.addWidget(self._wrangelbl)
self._minmaxvalidator = FloatValidator(self)
self._wmin = QLineEdit(self)
self._wmax = QLineEdit(self)
width = self._wmin.fontMetrics().width("1.234567e-05")
for w in self._wmin, self._wmax:
lo.addWidget(w, 0)
w.setValidator(self._minmaxvalidator)
w.setMaximumWidth(width)
w.setMinimumWidth(width)
w.editingFinished.connect(self._changeDisplayRange)
# full-range button
self._wfullrange = QToolButton(self)
lo.addWidget(self._wfullrange, 0)
self._wfullrange.setIcon(pixmaps.zoom_range.icon())
self._wfullrange.setAutoRaise(True)
self._wfullrange.clicked.connect(
self.renderControl().resetSubsetDisplayRange)
rangemenu = QMenu(self)
rangemenu.addAction(pixmaps.full_range.icon(), "Full subset",
self.renderControl().resetSubsetDisplayRange)
for percent in (99.99, 99.9, 99.5, 99, 98, 95):
rangemenu.addAction(
"%g%%" % percent,
self._currier.curry(self._changeDisplayRangeToPercent,
percent))
self._wfullrange.setPopupMode(QToolButton.DelayedPopup)
self._wfullrange.setMenu(rangemenu)
# update widgets from current display range
self._updateDisplayRange(*self._rc.displayRange())
# lock button
self._wlock = QToolButton(self)
self._wlock.setIcon(pixmaps.unlocked.icon())
self._wlock.setAutoRaise(True)
self._wlock.setToolTip(
"""<P>Click to lock or unlock the intensity range. When the intensity range is locked across multiple images, any changes in the intensity
range of one are propagated to the others. Hold the button down briefly for additional options.</P>"""
)
lo.addWidget(self._wlock)
self._wlock.clicked.connect(self._toggleDisplayRangeLock)
self.renderControl().displayRangeLocked.connect(
self._setDisplayRangeLock)
self.renderControl().dataSubsetChanged.connect(self._dataSubsetChanged)
lockmenu = QMenu(self)
lockmenu.addAction(
pixmaps.locked.icon(), "Lock all to this",
self._currier.curry(imgman.lockAllDisplayRanges,
self.renderControl()))
lockmenu.addAction(pixmaps.unlocked.icon(), "Unlock all",
imgman.unlockAllDisplayRanges)
self._wlock.setPopupMode(QToolButton.DelayedPopup)
self._wlock.setMenu(lockmenu)
self._setDisplayRangeLock(self.renderControl().isDisplayRangeLocked())
# dialog button
self._wshowdialog = QToolButton(self)
lo.addWidget(self._wshowdialog)
self._wshowdialog.setIcon(pixmaps.colours.icon())
self._wshowdialog.setAutoRaise(True)
self._wshowdialog.setToolTip(
"""<P>Click for colourmap and intensity policy options.</P>""")
self._wshowdialog.clicked.connect(self.showRenderControls)
tooltip = """<P>You can change the currently displayed intensity range by entering low and high limits here.</P>
<TABLE>
<TR><TD><NOBR>Image min:</NOBR></TD><TD>%g</TD><TD>max:</TD><TD>%g</TD></TR>
</TABLE>""" % self.image.imageMinMax()
for w in self._wmin, self._wmax, self._wrangelbl:
w.setToolTip(tooltip)
# create image operations menu
self._menu = QMenu(self.name, self)
self._qa_raise = self._menu.addAction(
pixmaps.raise_up.icon(), "Raise image",
self._currier.curry(self.image.signalRaise.emit, None))
self._qa_center = self._menu.addAction(
pixmaps.center_image.icon(), "Center plot on image",
self._currier.curry(self.image.signalCenter.emit, True))
self._qa_show_rc = self._menu.addAction(pixmaps.colours.icon(),
"Colours && Intensities...",
self.showRenderControls)
if save:
self._qa_save = self._menu.addAction("Save image...",
self._saveImage)
self._menu.addAction("Export image to PNG file...",
self._exportImageToPNG)
self._export_png_dialog = None
self._menu.addAction(
"Unload image",
self._currier.curry(self.image.signalUnload.emit, None))
self._wraise.setMenu(self._menu)
self._wraise.setPopupMode(QToolButton.DelayedPopup)
# connect updates from renderControl and image
self.image.signalSlice.connect(self._updateImageSlice)
self._rc.displayRangeChanged.connect(self._updateDisplayRange)
# default plot depth of image markers
self._z_markers = None
# and the markers themselves
self._image_border = QwtPlotCurve()
self._image_border.setRenderHint(QwtPlotItem.RenderAntialiased)
self._image_label = QwtPlotMarker()
self._image_label.setRenderHint(QwtPlotItem.RenderAntialiased)
# subset markers
self._subset_pen = QPen(QColor("Light Blue"))
self._subset_border = QwtPlotCurve()
self._subset_border.setRenderHint(QwtPlotItem.RenderAntialiased)
self._subset_border.setPen(self._subset_pen)
self._subset_border.setVisible(False)
self._subset_label = QwtPlotMarker()
self._subset_label.setRenderHint(QwtPlotItem.RenderAntialiased)
text = QwtText("subset")
text.setColor(self._subset_pen.color())
self._subset_label.setLabel(text)
self._subset_label.setLabelAlignment(Qt.AlignRight | Qt.AlignBottom)
self._subset_label.setVisible(False)
self._setting_lmrect = False
self._all_markers = [
self._image_border, self._image_label, self._subset_border,
self._subset_label
]
self._exportMaxRes = False
self._dockable_colour_ctrl = None
def close(self):
if self._control_dialog:
self._control_dialog.close()
self._control_dialog = None
def __del__(self):
self.close()
def __eq__(self, other):
return self is other
def renderControl(self):
return self._rc
def getMenu(self):
return self._menu
def getFilename(self):
return self.image.filename
def setName(self, name):
self.name = name
self._wlabel.setText("%s: %s" %
(chr(ord('a') + self._number), self.name))
def setNumber(self, num):
self._number = num
self._menu.menuAction().setText(
"%s: %s" % (chr(ord('a') + self._number), self.name))
self._qa_raise.setShortcut(QKeySequence("Alt+" + chr(ord('A') + num)))
self.setName(self.name)
def getNumber(self):
return self._number
def setPlotProjection(self, proj):
self.image.setPlotProjection(proj)
sameproj = proj == self.image.projection
self._wcenter.setVisible(sameproj)
self._qa_center.setVisible(not sameproj)
if self._image_border:
(l0, l1), (m0, m1) = self.image.getExtents()
path = numpy.array([l0, l0, l1, l1,
l0]), numpy.array([m0, m1, m1, m0, m0])
self._image_border.setSamples(*path)
if self._image_label:
self._image_label.setValue(path[0][2], path[1][2])
def addPlotBorder(self,
border_pen,
label,
label_color=None,
bg_brush=None):
# make plot items for image frame
# make curve for image borders
(l0, l1), (m0, m1) = self.image.getExtents()
self._border_pen = QPen(border_pen)
self._image_border.show()
self._image_border.setSamples([l0, l0, l1, l1, l0],
[m0, m1, m1, m0, m0])
self._image_border.setPen(self._border_pen)
self._image_border.setZ(
self.image.z() + 1 if self._z_markers is None else self._z_markers)
if label:
self._image_label.show()
self._image_label_text = text = QwtText(" %s " % label)
text.setColor(label_color)
text.setBackgroundBrush(bg_brush)
self._image_label.setValue(l1, m1)
self._image_label.setLabel(text)
self._image_label.setLabelAlignment(Qt.AlignRight
| Qt.AlignVCenter)
self._image_label.setZ(
self.image.z() +
2 if self._z_markers is None else self._z_markers)
def setPlotBorderStyle(self, border_color=None, label_color=None):
if border_color:
self._border_pen.setColor(border_color)
self._image_border.setPen(self._border_pen)
if label_color:
self._image_label_text.setColor(label_color)
self._image_label.setLabel(self._image_label_text)
def showPlotBorder(self, show=True):
self._image_border.setVisible(show)
self._image_label.setVisible(show)
def attachToPlot(self, plot, z_markers=None):
for item in [self.image] + self._all_markers:
if item.plot() != plot:
item.attach(plot)
def setImageVisible(self, visible):
self.image.setVisible(visible)
def showRenderControls(self):
if not self._control_dialog:
dprint(1, "creating control dialog")
self._control_dialog = ImageControlDialog(self, self._rc,
self._imgman)
# line below allows window to be resized by the user
self._control_dialog.setSizeGripEnabled(True)
# get and set sizing
self._control_dialog.setMinimumWidth(396)
# create size policy for control dialog
colour_ctrl_policy = QSizePolicy()
colour_ctrl_policy.setHorizontalPolicy(QSizePolicy.Minimum)
self._control_dialog.setSizePolicy(colour_ctrl_policy)
# setup dockable colour control dialog
self._dockable_colour_ctrl = TDockWidget(
title=f"{self._rc.image.name}",
parent=self.parent().mainwin,
bind_widget=self._control_dialog,
close_slot=self.colourctrl_dockwidget_closed,
toggle_slot=self.colourctrl_dockwidget_toggled)
self.addDockWidgetToTab()
dprint(1, "done")
# set dockable widget visibility in sync with control dialog
if not self._control_dialog.isVisible():
dprint(1, "showing control dialog")
self._control_dialog.show()
self._dockable_colour_ctrl.setVisible(True)
self.addDockWidgetToTab()
self._dockable_colour_ctrl.show()
self._dockable_colour_ctrl.raise_()
else:
self._control_dialog.hide()
self._dockable_colour_ctrl.setVisible(False)
self.parent().mainwin.setMaximumWidth(
self.parent().mainwin.width() +
self._dockable_colour_ctrl.width())
def addDockWidgetToTab(self):
# Add dockable widget to main window.
# This needs to itterate through the widgets to find DockWidgets already in the right side area,
# then tabifydockwidget when adding, or add to the right area if empty
widget_list = self.parent().mainwin.findChildren(QDockWidget)
for widget in widget_list:
if self.parent().mainwin.dockWidgetArea(
widget) == 2: # if in right dock area
if widget.isVisible() and not widget.isFloating(
): # if widget active and not a window
if self._dockable_colour_ctrl is not widget: # check not itself
# add dock widget in tab on top of current widget in right area
self.parent().mainwin.tabifyDockWidget(
widget, self._dockable_colour_ctrl)
self.parent().mainwin.resizeDocks(
[widget], [widget.bind_widget.width()],
Qt.Horizontal)
elif self.parent().mainwin.dockWidgetArea(
widget
) == 0: # if not in any dock area assume we have new dock widget
# no previous widget in this area then add
self.parent().mainwin.addDockWidget(Qt.RightDockWidgetArea,
self._dockable_colour_ctrl)
self.parent().mainwin.resizeDocks([widget],
[widget.bind_widget.width()],
Qt.Horizontal)
def removeDockWidget(self):
# remove image control dock widget
self.parent().mainwin.removeDockWidget(self._dockable_colour_ctrl)
# get widgets to resize
widget_list = self.parent().mainwin.findChildren(QDockWidget)
size_list = []
result = []
for widget in widget_list:
if not isinstance(widget.bind_widget, ImageControlDialog):
size_list.append(widget.bind_widget.width())
result.append(widget)
dprint(2, f"{widget} width {widget.width()}")
dprint(
2,
f"{widget} bind_widget width {widget.bind_widget.width()}")
if isinstance(widget.bind_widget, LiveImageZoom):
widget.bind_widget.setMinimumWidth(widget.width())
widget_list = result
# resize dock areas
self.parent().mainwin.resizeDocks(widget_list, size_list,
Qt.Horizontal)
def colourctrl_dockwidget_closed(self):
self._dockable_colour_ctrl.setVisible(False)
self.parent().mainwin.setMaximumWidth(
self.parent().mainwin.width() - self._dockable_colour_ctrl.width())
def colourctrl_dockwidget_toggled(self):
if self._dockable_colour_ctrl.isVisible():
if self._dockable_colour_ctrl.isWindow():
self._dockable_colour_ctrl.setFloating(False)
else:
self._dockable_colour_ctrl.setFloating(True)
self.parent().mainwin.setMaximumWidth(
self.parent().mainwin.width() +
self._dockable_colour_ctrl.width())
def _changeDisplayRangeToPercent(self, percent):
if not self._control_dialog:
self._control_dialog = ImageControlDialog(self, self._rc,
self._imgman)
self._control_dialog._changeDisplayRangeToPercent(percent)
def _updateDisplayRange(self, dmin, dmax):
"""Updates display range widgets."""
self._wmin.setText("%.4g" % dmin)
self._wmax.setText("%.4g" % dmax)
self._updateFullRangeIcon()
def _changeDisplayRange(self):
"""Gets display range from widgets and updates the image with it."""
try:
newrange = float(str(self._wmin.text())), float(
str(self._wmax.text()))
except ValueError:
return
self._rc.setDisplayRange(*newrange)
def _dataSubsetChanged(self, subset, minmax, desc, subset_type):
"""Called when the data subset changes (or is reset)"""
# hide the subset indicator -- unless we're invoked while we're actually setting the subset itself
if not self._setting_lmrect:
self._subset = None
self._subset_border.setVisible(False)
self._subset_label.setVisible(False)
def setLMRectSubset(self, rect):
self._subset = rect
l0, m0, l1, m1 = rect.getCoords()
self._subset_border.setSamples([l0, l0, l1, l1, l0],
[m0, m1, m1, m0, m0])
self._subset_border.setVisible(True)
self._subset_label.setValue(max(l0, l1), max(m0, m1))
self._subset_label.setVisible(True)
self._setting_lmrect = True
self.renderControl().setLMRectSubset(rect)
self._setting_lmrect = False
def currentSlice(self):
return self._rc.currentSlice()
def _updateImageSlice(self, _slice):
dprint(2, _slice)
for i, (iextra, name, labels) in enumerate(self._rc.slicedAxes()):
slicer = self._wslicers[i]
if slicer.currentIndex() != _slice[iextra]:
dprint(3, "setting widget", i, "to", _slice[iextra])
slicer.setCurrentIndex(_slice[iextra])
def setMarkersZ(self, z):
self._z_markers = z
for i, elem in enumerate(self._all_markers):
elem.setZ(z + i)
def setZ(self, z, top=False, depthlabel=None, can_raise=True):
self.image.setZ(z)
if self._z_markers is None:
for i, elem in enumerate(self._all_markers):
elem.setZ(z + i + i)
# set the depth label, if any
label = "%s: %s" % (chr(ord('a') + self._number), self.name)
# label = "%s %s"%(depthlabel,self.name) if depthlabel else self.name
if top:
label = "%s: <B>%s</B>" % (chr(ord('a') + self._number), self.name)
self._wlabel.setText(label)
# set hotkey
self._qa_show_rc.setShortcut(Qt.Key_F9 if top else QKeySequence())
# set raise control
self._can_raise = can_raise
self._qa_raise.setVisible(can_raise)
self._wlock.setVisible(can_raise)
if can_raise:
self._wraise.setToolTip(
"<P>Click here to raise this image to the top. Click on the down-arrow to access the image menu.</P>"
)
else:
self._wraise.setToolTip("<P>Click to access the image menu.</P>")
def _raiseButtonPressed(self):
if self._can_raise:
self.image.signalRaise.emit(self.image)
else:
self._wraise.showMenu()
def _saveImage(self):
filename = QFileDialog.getSaveFileName(
self,
"Save FITS file",
self._save_dir,
"FITS files(*.fits *.FITS *fts *FTS)",
options=QFileDialog.DontUseNativeDialog)
filename = str(filename[0])
if not filename:
return
busy = BusyIndicator()
self._imgman.signalShowMessage.emit(
"""Writing FITS image %s""" % filename, 3000)
QApplication.flush()
try:
self.image.save(filename)
except Exception as exc:
busy.reset_cursor()
traceback.print_exc()
self._imgman.signalShowErrorMessage.emit(
"""Error writing FITS image %s: %s""" %
(filename, str(sys.exc_info()[1])))
return None
self.renderControl().startSavingConfig(filename)
self.setName(self.image.name)
self._qa_save.setVisible(False)
self._wsave.hide()
busy.reset_cursor()
def _exportImageResolution(self):
sender = self.sender()
if isinstance(sender, QCheckBox):
if sender.isChecked():
self._exportMaxRes = True
else:
self._exportMaxRes = False
def _exportImageToPNG(self, filename=None):
if not filename:
if not self._export_png_dialog:
dialog = self._export_png_dialog = QFileDialog(
self, "Export image to PNG", ".", "*.png")
dialog.setDefaultSuffix("png")
dialog.setFileMode(QFileDialog.AnyFile)
dialog.setAcceptMode(QFileDialog.AcceptSave)
dialog.setModal(True)
dialog.filesSelected['QStringList'].connect(
self._exportImageToPNG)
# attempt to add limit 4K option - not available on Ubuntu Unity
layout = dialog.layout()
if layout is not None:
checkbox = QCheckBox("Limit to 4K image")
checkbox.setChecked(False)
checkbox.setToolTip("Limits the image output to 4K")
checkbox.toggled.connect(self._exportImageResolution)
layout.addWidget(checkbox)
dialog.setLayout(layout)
return self._export_png_dialog.exec_() == QDialog.Accepted
busy = BusyIndicator()
if isinstance(filename, QStringList):
filename = filename[0]
filename = str(filename)
# get image dimensions
nx, ny = self.image.imageDims()
# export either max resolution possible or default to 4K. If image is small then no scaling occurs.
if not self._exportMaxRes:
# get free memory. Note: Linux only!
import os
total_memory, used_memory, free_memory = map(
int,
os.popen('free -t -m').readlines()[-1].split()[1:])
# use 90% of free memory available
free_memory = free_memory * 0.9
# use an approximation to find the max image size that can be generated
if nx >= ny and nx > free_memory:
scale_factor = round(free_memory / nx, 1)
elif ny > nx and ny > free_memory:
scale_factor = round(free_memory / ny, 1)
else:
scale_factor = 1
else:
# default to 4K
if nx > 4000:
scale_factor = 4000 / nx
elif ny > nx and ny > 4000:
scale_factor = 4000 / ny
else:
scale_factor = 1
# make QPixmap
nx = nx * scale_factor
ny = ny * scale_factor
(l0, l1), (m0, m1) = self.image.getExtents()
pixmap = QPixmap(nx, ny)
painter = QPainter(pixmap)
# use QwtPlot implementation of draw canvas, since we want to avoid caching
xmap = QwtScaleMap()
xmap.setPaintInterval(0, nx)
xmap.setScaleInterval(l1, l0)
ymap = QwtScaleMap()
ymap.setPaintInterval(ny, 0)
ymap.setScaleInterval(m0, m1)
# call painter with clear cache option for consistent file size output.
self.image.draw(painter, xmap, ymap, pixmap.rect(), use_cache=False)
painter.end()
# save to file
try:
pixmap.save(filename, "PNG")
# clean up export items
pixmap.detach()
del xmap
del ymap
del pixmap
del painter
except Exception as exc:
self._imgman.signalShowErrorMessage[str, int].emit(
"Error writing %s: %s" % (filename, str(exc)), 3000)
busy.reset_cursor()
else:
busy.reset_cursor()
self._imgman.signalShowMessage[str, int].emit(
"Exported image to file %s" % filename, 3000)
def _toggleDisplayRangeLock(self):
self.renderControl().lockDisplayRange(
not self.renderControl().isDisplayRangeLocked())
def _setDisplayRangeLock(self, locked):
self._wlock.setIcon(
pixmaps.locked.icon() if locked else pixmaps.unlocked.icon())
def _updateFullRangeIcon(self):
if self._rc.isSubsetDisplayRange():
self._wfullrange.setIcon(pixmaps.zoom_range.icon())
self._wfullrange.setToolTip(
"""<P>The current intensity range is the full range. Hold this button down briefly for additional options.</P>"""
)
else:
self._wfullrange.setIcon(pixmaps.full_range.icon())
self._wfullrange.setToolTip(
"""<P>Click to reset to a full intensity range. Hold the button down briefly for additional options.</P>"""
)
class PaintBoard(QLabel):
signal_right_mouse = pyqtSignal(int)
signal_draw = pyqtSignal()
def __init__(self, parent=None):
super().__init__(parent)
self.__parent = parent
self.__board = QPixmap(QSize(440, 440))
self.__board.fill(Qt.transparent)
self.__board_old = self.__board.copy()
self.__board_old_old = self.__board.copy()
self.__board_before_dots = self.__board.copy()
self.__thickness = 10 # 默认画笔粗细为10px
self.__penColor = QColor(0, 0, 0, 128)
self.__painter = QPainter()
self.__pen = QPen(self.__penColor, self.__thickness)
self.__pen_seg = QPen(QColor(0, 0, 0, 128))
self.__brush = QBrush(QColor(0, 0, 0, 128))
self.__pen.setCapStyle(Qt.RoundCap)
#self.__painter.setPen(self.__pen)
self.__lastPos = QPoint(0, 0) # 上一次鼠标位置
self.__currentPos = QPoint(0, 0) # 当前的鼠标位置
self.__points = [] # dots模式的点集
self.__mouse_pressed = False
self.__can_undo = False
self.__has_seg = False
self.__mode = 1
self.__ERASE = 0
self.__LINE = 1
self.__RECT = 2
self.__CIRCLE = 3
self.__DOTS = 4
self.__transparent = False
self.__trans_board = self.__board.copy()
self.__trans_board.fill(Qt.transparent)
@staticmethod
def dist(p1, p2):
return math.hypot(p1.x() - p2.x(), p1.y() - p2.y())
# Each time paintEvent is called it clean the space where it is going to draw.
# So it does not save memory of the previous drawings,
# A simple solution is to first paint a QPixmap to store what you have painted.
# And then paint the widget with that QPixmap.
def set_trans(self, trans):
self.__transparent = trans
self.update()
def is_trans(self):
return self.__transparent
def paintEvent(self, paint_event): # 把board绘制到界面上
self.__painter.begin(self)
if not self.__transparent:
self.__painter.drawPixmap(0, 0, self.__board)
else:
self.__painter.drawPixmap(0, 0, self.__trans_board) #结果图关闭mask
self.__painter.end()
def mousePressEvent(self, mouse_event):
if mouse_event.button() == Qt.LeftButton:
self.__mouse_pressed = True
self.__board_old_old = self.__board_old.copy()
self.__board_old = self.__board.copy()
self.__currentPos = mouse_event.pos()
self.__lastPos = self.__currentPos
if self.__mode == self.__DOTS:
if len(self.__points) == 0:
self.__board_before_dots = self.__board.copy()
self.__parent.childAt(740, 0).setEnabled(False)
self.__parent.childAt(840, 0).setEnabled(False)
self.__parent.childAt(370, 0).setEnabled(False)
self.__parent.childAt(300, 610).setEnabled(False)
if len(self.__points) > 0:
print(
self.dist(
self.__points[0],
QPoint(self.__currentPos.x(),
self.__currentPos.y())))
if len(self.__points) > 2 and \
self.dist(self.__points[0], QPoint(self.__currentPos.x(), self.__currentPos.y())) < 5:
self.__board = self.__board_before_dots.copy()
self.__painter.begin(self.__board)
if self.__ERASE:
self.__painter.setCompositionMode(
QPainter.CompositionMode_Clear)
else:
self.__painter.setCompositionMode(
QPainter.CompositionMode_Source)
self.__painter.setPen(Qt.NoPen)
self.__painter.setBrush(self.__brush)
self.__painter.drawPolygon(QPolygon(self.__points))
self.signal_draw.emit()
self.__painter.end()
self.__points.clear()
self.__parent.childAt(740, 0).setEnabled(True)
self.__parent.childAt(840, 0).setEnabled(True)
self.__parent.childAt(370, 0).setEnabled(True)
self.__parent.childAt(300, 610).setEnabled(True)
self.update()
else:
self.__points.append(
QPoint(self.__currentPos.x(), self.__currentPos.y()))
if not (self.__mode == self.__DOTS and len(self.__points) == 1):
self.__can_undo = True
self.__parent.childAt(70, 610).setEnabled(True)
else:
self.__can_undo = False
self.__parent.childAt(70, 610).setEnabled(False)
def mouseMoveEvent(self, mouse_event): # 把线绘制到board上
self.__currentPos = mouse_event.pos()
if self.__mode != self.__LINE:
if len(self.__points) > 0:
self.__board = self.__board_old.copy()
elif not self.__mode == self.__DOTS:
if self.__mouse_pressed:
self.__board = self.__board_old.copy()
self.__painter.begin(self.__board)
self.__painter.setPen(self.__pen)
if self.__ERASE:
self.__painter.setCompositionMode(QPainter.CompositionMode_Clear)
else:
self.__painter.setCompositionMode(QPainter.CompositionMode_Source)
if self.__mode == self.__LINE:
if self.__mouse_pressed:
self.__painter.drawLine(self.__lastPos, self.__currentPos)
self.signal_draw.emit()
elif self.__mode == self.__RECT:
self.__painter.setPen(Qt.NoPen)
self.__painter.setBrush(self.__brush)
if self.__mouse_pressed:
self.__painter.drawRect(
self.__lastPos.x(), self.__lastPos.y(),
(self.__currentPos.x() - self.__lastPos.x()),
(self.__currentPos.y() - self.__lastPos.y()))
self.signal_draw.emit()
elif self.__mode == self.__CIRCLE:
self.__painter.setPen(Qt.NoPen)
self.__painter.setBrush(self.__brush)
if self.__mouse_pressed:
self.__painter.drawEllipse(
self.__lastPos.x(), self.__lastPos.y(),
(self.__currentPos.x() - self.__lastPos.x()),
(self.__currentPos.y() - self.__lastPos.y()))
self.signal_draw.emit()
elif self.__mode == self.__DOTS:
if len(self.__points) > 0:
self.__painter.setCompositionMode(
QPainter.CompositionMode_Source)
self.__painter.setPen(QPen(self.__pen_seg.color(), 1))
self.__painter.drawLine(self.__points[-1], self.__currentPos)
self.signal_draw.emit()
self.__painter.end()
if self.__mode == self.__LINE:
self.__lastPos = self.__currentPos
self.update() # 触发paintEvent
def mouseDoubleClickEvent(self, mouse_event):
if mouse_event.button() == Qt.LeftButton:
if not self.__mode == self.__DOTS:
if self.__has_seg:
x = mouse_event.pos().x()
y = mouse_event.pos().y()
value = self.segment[y][x] # 注意这里x和y要反过来
self.__painter.begin(self.__board)
self.paint_segment(value, x, y)
self.__painter.end()
self.signal_draw.emit()
self.update() # 触发paintEvent
def mouseReleaseEvent(self, mouse_event):
if mouse_event.button() == Qt.LeftButton:
self.__mouse_pressed = False
if mouse_event.button() == Qt.RightButton:
self.signal_right_mouse.emit(1 - self.__ERASE)
return
def undo(self):
if self.__can_undo:
if self.__mode != self.__DOTS:
self.__board = self.__board_old.copy()
else:
if len(self.__points) == 0:
self.__board = self.__board_before_dots.copy()
else:
self.__points.pop()
self.__board = self.__board_old_old.copy()
self.__board_old = self.__board_old_old.copy()
self.signal_draw.emit()
self.update()
self.__can_undo = False
self.__parent.childAt(70, 610).setEnabled(False)
def update_segment(self, seg):
self.segment = seg
self.__parent.childAt(1040, 0).setEnabled(False)
self.__has_seg = True
def set_board(self, x, y):
self.__board = self.__board.scaled(x, y)
def update_board(self, board):
self.__board = board
self.update()
def paint_segment(self, value, x, y):
has_painted = np.zeros(self.segment.shape, dtype=np.uint8)
point_stack = [(x, y)]
while len(point_stack) > 0:
point = point_stack.pop()
x = point[0]
y = point[1]
self.__painter.setPen(self.__pen_seg)
if self.__ERASE:
self.__painter.setCompositionMode(
QPainter.CompositionMode_Clear)
else:
self.__painter.setCompositionMode(
QPainter.CompositionMode_Source)
self.__painter.drawPoint(x, y)
has_painted[y][x] = 1
if x + 1 < self.segment.shape[1] and has_painted[y][
x + 1] == 0 and value == self.segment[y][x + 1]:
point_stack.append((x + 1, y))
if x - 1 >= 0 and has_painted[y][
x - 1] == 0 and value == self.segment[y][x - 1]:
point_stack.append((x - 1, y))
if y + 1 < self.segment.shape[0] and has_painted[
y + 1][x] == 0 and value == self.segment[y + 1][x]:
point_stack.append((x, y + 1))
if y - 1 >= 0 and has_painted[
y - 1][x] == 0 and value == self.segment[y - 1][x]:
point_stack.append((x, y - 1))
def Thanos(self, label):
if len(label) == 0:
return False
image = self.__board.copy()
image.fill(Qt.transparent)
pixels = image.toImage()
s = pixels.bits().asstring(pixels.width() * pixels.height() * 4)
arr = np.fromstring(s, dtype=np.uint8).reshape(
(pixels.height(), pixels.width(), 4))
np.set_printoptions(threshold=sys.maxsize)
mask = arr[..., 3]
for l in label:
mask[self.segment == l] = 255
expand_mask(mask, 5)
#Image.fromarray(np.uint8(mask)).save('mask_10.jpg')
return mask
def set_seg(self):
self.__has_seg = False
def set_pen(self, value):
self.__pen.setWidth(value)
def pen_black(self):
self.__pen.setColor(QColor(0, 0, 0, 128))
def pen_white(self):
self.__pen.setColor(QColor(255, 255, 255, 128))
def geo_black(self):
self.__pen_seg.setColor(QColor(0, 0, 0, 128))
self.__brush = QBrush(QColor(0, 0, 0, 128))
def geo_white(self):
self.__pen_seg.setColor(QColor(255, 255, 255, 128))
self.__brush = QBrush(QColor(255, 255, 255, 128))
def switch_mode(self):
self.__ERASE = 1 - self.__ERASE
def set_mode(self, mode):
self.__ERASE = mode
def tool_pen(self):
self.__mode = self.__LINE
def tool_rect(self):
self.__mode = self.__RECT
def tool_circle(self):
self.__mode = self.__CIRCLE
def tool_dots(self):
self.__mode = self.__DOTS
def clear_board(self):
self.__board.fill(Qt.transparent)
self.__board_old = self.__board.copy()
self.__board_before_dots = self.__board.copy()
self.__board_old_old = self.__board.copy()
self.__parent.childAt(70, 610).setEnabled(False)
self.signal_draw.emit()
self.update()
def save(self):
# save_path = QFileDialog.getSaveFileName(self, 'Save Your Paint', '.\\', '*.jpg')
save_path = 'D:/test.png', '*.png'
print(save_path)
if save_path[0] == "":
print("Save cancel")
return
image = self.__board
pixels = image.toImage()
s = pixels.bits().asstring(pixels.width() * pixels.height() * 4)
arr = np.fromstring(s, dtype=np.uint8).reshape(
(pixels.height(), pixels.width(), 4))
np.set_printoptions(threshold=sys.maxsize)
mask = arr[..., 3]
print(mask)
# qimage2numpy(pixels)
# Pixels can only be accessed through QPainter functions or by converting the QPixmap to a QImage.
image.save(save_path[0])
def get_mask(self):
image = self.__board
pixels = image.toImage()
s = pixels.bits().asstring(pixels.width() * pixels.height() * 4)
arr = np.fromstring(s, dtype=np.uint8).reshape(
(pixels.height(), pixels.width(), 4))
np.set_printoptions(threshold=sys.maxsize)
mask = arr[..., 3] # 取alpha通道，就是不透明度
mask[mask > 0] = 255
return mask
def get_board(self):
return self.__board.copy()
def test(self):
# self.pix = QPixmap("road.jpg")
self.__painter.begin(self.__board)
for i in range(301):
for j in range(301):
self.__painter.drawPoint(i, j)
self.__painter.end()
self.update()
