def wheelEvent(self, event):
"""Zoom in/out."""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
try:
config = self._graph_view_form._data_store._toolbox._config
use_smooth_zoom = config.getboolean("settings", "use_smooth_zoom")
except AttributeError:
use_smooth_zoom = False
if use_smooth_zoom:
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._num_scheduled_scalings += num_steps
if self._num_scheduled_scalings * num_steps < 0:
self._num_scheduled_scalings = num_steps
if self.anim:
self.anim.deleteLater()
self.anim = QTimeLine(200, self)
self.anim.setUpdateInterval(20)
self.anim.valueChanged.connect(self.scaling_time)
self.anim.finished.connect(self.anim_finished)
self.anim.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base**angle
self.gentle_zoom(factor)
def wheelEvent(self, event):
"""Zoom in/out.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
smooth_zoom = self._qsettings.value("appSettings/smoothZoom", defaultValue="false")
if smooth_zoom == "true":
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._num_scheduled_scalings += num_steps
if self._num_scheduled_scalings * num_steps < 0:
self._num_scheduled_scalings = num_steps
if self.anim:
self.anim.deleteLater()
self.anim = QTimeLine(200, self)
self.anim.setUpdateInterval(20)
self.anim.valueChanged.connect(lambda x, pos=event.pos(): self.scaling_time(pos))
self.anim.finished.connect(self.anim_finished)
self.anim.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base ** angle
self.gentle_zoom(factor, event.pos())
class SignaltoSignalTest(UsesQCoreApplication):
def setUp(self):
UsesQCoreApplication.setUp(self)
self.receiver = ExtQObject()
self.timeline = QTimeLine(100)
def tearDown(self):
del self.timeline
del self.receiver
UsesQCoreApplication.tearDown(self)
def testSignaltoSignal(self):
self.timeline.setUpdateInterval(10)
self.timeline.finished.connect(self.app.quit)
self.timeline.valueChanged.connect(self.receiver.signalbetween)
self.receiver.signalbetween.connect(self.receiver.foo)
self.timeline.start()
self.app.exec_()
self.assertTrue(self.receiver.counter > 1)
class NativeSignalsTest(UsesQCoreApplication):
def setUp(self):
UsesQCoreApplication.setUp(self)
self.called = False
self.timeline = QTimeLine(100)
def tearDown(self):
del self.called
del self.timeline
UsesQCoreApplication.tearDown(self)
def testSignalWithIntArgument(self):
def valueChangedSlot(value):
self.called = True
self.assertEqual(type(value), float)
self.app.quit()
self.timeline.valueChanged.connect(valueChangedSlot)
self.timeline.start()
self.app.exec_()
self.assertTrue(self.called)
def testSignalWithoutArguments(self):
def finishedSlot():
self.called = True
self.app.quit()
self.timeline.finished.connect(finishedSlot)
self.timeline.start()
self.app.exec_()
self.assertTrue(self.called)
def __init__(self, toolbox, x, y, w, h, name):
"""Tool icon for the Design View.
Args:
toolbox (ToolBoxUI): QMainWindow instance
x (float): Icon x coordinate
y (float): Icon y coordinate
w (float): Width of master icon
h (float): Height of master icon
name (str): Item name
"""
super().__init__(
toolbox,
x,
y,
w,
h,
name,
":/icons/project_item_icons/hammer.svg",
icon_color=QColor("red"),
background_color=QColor("#ffe6e6"),
)
# animation stuff
self.timer = QTimeLine()
self.timer.setLoopCount(0) # loop forever
self.timer.setFrameRange(0, 10)
# self.timer.setCurveShape(QTimeLine.CosineCurve)
self.timer.valueForTime = self._value_for_time
self.tool_animation = QGraphicsItemAnimation()
self.tool_animation.setItem(self.svg_item)
self.tool_animation.setTimeLine(self.timer)
self.delta = 0.25 * self.svg_item.sceneBoundingRect().height()
def wheelEvent(self, event):
"""Zooms in/out. If user has pressed the shift key, rotates instead.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.modifiers() != Qt.ShiftModifier:
super().wheelEvent(event)
return
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
smooth_rotation = self._qsettings.value(
"appSettings/smoothEntityGraphRotation", defaultValue="false")
if smooth_rotation == "true":
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._scheduled_transformations += num_steps
if self._scheduled_transformations * num_steps < 0:
self._scheduled_transformations = num_steps
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.setUpdateInterval(20)
self.time_line.valueChanged.connect(
self._handle_rotation_time_line_advanced)
self.time_line.finished.connect(
self._handle_transformation_time_line_finished)
self.time_line.start()
else:
angle = event.angleDelta().y() / 8
self._rotate(angle)
self._set_preferred_scene_rect()
class SignaltoSignalTest(UsesQCoreApplication):
def setUp(self):
UsesQCoreApplication.setUp(self)
self.receiver = ExtQObject()
self.timeline = QTimeLine(100)
def tearDown(self):
del self.timeline
del self.receiver
UsesQCoreApplication.tearDown(self)
def testSignaltoSignal(self):
self.timeline.setUpdateInterval(10)
self.timeline.finished.connect(self.app.quit)
self.timeline.valueChanged.connect(self.receiver.signalbetween)
self.receiver.signalbetween.connect(self.receiver.foo)
self.timeline.start()
self.app.exec_()
self.assert_(self.receiver.counter > 1)
def __init__(self, parent_item, src_item, dst_item, duration=2000):
"""Initializes animation stuff.
Args:
parent_item (QGraphicsItem): The item on top of which the animation should play.
src_item (QGraphicsItem): The source item.
dst_item (QGraphicsItem): The destination item.
duration (int. optional): The desired duration of each loop in milliseconds, defaults to 1000.
"""
self._parent_item = parent_item
self.src_item = src_item
self.dst_item = dst_item
font = QFont('Font Awesome 5 Free Solid')
size = 0.875 * round(parent_item.rect().height() / 2)
font.setPixelSize(size)
self.src_item.setFont(font)
self.dst_item.setFont(font)
self.src_opacity_effect = QGraphicsOpacityEffect()
self.src_item.setGraphicsEffect(self.src_opacity_effect)
self.dst_opacity_effect = QGraphicsOpacityEffect()
self.dst_item.setGraphicsEffect(self.dst_opacity_effect)
self.timer = QTimeLine()
self.timer.setLoopCount(0) # loop forever
self.timer.setFrameRange(0, 10)
self.timer.valueChanged.connect(self._handle_timer_value_changed)
self.timer.setDuration(duration)
self.src_animation = QGraphicsItemAnimation()
self.src_animation.setItem(self.src_item)
self.src_animation.setTimeLine(self.timer)
self.dst_animation = QGraphicsItemAnimation()
self.dst_animation.setItem(self.dst_item)
self.dst_animation.setTimeLine(self.timer)
def __init__(self, toolbox, x, y, project_item, icon):
"""View icon for the Design View.
Args:
toolbox (ToolBoxUI): QMainWindow instance
x (float): Icon x coordinate
y (float): Icon y coordinate
project_item (ProjectItem): Item
icon (str): icon resource path
"""
super().__init__(toolbox,
x,
y,
project_item,
icon,
icon_color=QColor("#990000"),
background_color=QColor("#ffcccc"))
self.time_line = QTimeLine()
self.time_line.setLoopCount(0) # loop forever
self.time_line.setFrameRange(0, 10)
self.time_line.setDirection(QTimeLine.Backward)
self.time_line.valueChanged.connect(
self._handle_time_line_value_changed)
self.time_line.stateChanged.connect(
self._handle_time_line_state_changed)
self._svg_item_pos = self.svg_item.pos()
def wheelEvent(self, event):
"""Zooms in/out.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
if self._use_smooth_zoom():
angle = event.delta() / 8
steps = angle / 15
self._scheduled_transformations += steps
if self._scheduled_transformations * steps < 0:
self._scheduled_transformations = steps
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.setUpdateInterval(20)
self.time_line.valueChanged.connect(lambda x, pos=event.pos(
): self._handle_zoom_time_line_advanced(pos))
self.time_line.finished.connect(
self._handle_transformation_time_line_finished)
self.time_line.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base**angle
self.gentle_zoom(factor, event.pos())
self._set_preferred_scene_rect()
class FaderWidget(QWidget):
def __init__(self, old_widget, new_widget):
QWidget.__init__(self, new_widget)
self.pixmap_opacity = 1.0
self.old_pixmap = QPixmap(new_widget.size())
old_widget.render(self.old_pixmap)
self.timeline = QTimeLine()
self.timeline.valueChanged.connect(self.animate)
self.timeline.finished.connect(self.close)
self.timeline.setDuration(230)
self.timeline.start()
self.resize(new_widget.size())
self.show()
def paintEvent(self, event):
painter = QPainter()
painter.begin(self)
painter.setOpacity(self.pixmap_opacity)
painter.drawPixmap(0, 0, self.old_pixmap)
painter.end()
def animate(self, value):
self.pixmap_opacity = 1.0 - value
self.repaint()
def testWithArgs(self):
'''Connect python signals to QTimeLine.setCurrentTime(int)'''
timeline = QTimeLine()
dummy = Dummy()
QObject.connect(dummy, SIGNAL('dummy(int)'),
timeline, SLOT('setCurrentTime(int)'))
current = timeline.currentTime()
dummy.emit(SIGNAL('dummy(int)'), current+42)
self.assertEqual(timeline.currentTime(), current+42)
def testWithArgs(self):
'''Connect python signals to QTimeLine.setCurrentTime(int)'''
timeline = QTimeLine()
dummy = Dummy()
QObject.connect(dummy, SIGNAL('dummy(int)'),
timeline, SLOT('setCurrentTime(int)'))
current = timeline.currentTime()
dummy.emit(SIGNAL('dummy(int)'), current+42)
self.assertEqual(timeline.currentTime(), current+42)
def __init__(self,
item,
duration=2000,
count=5,
percentage_size=0.24,
x_shift=0):
"""Initializes animation stuff.
Args:
item (QGraphicsItem): The item on top of which the animation should play.
"""
self._item = item
self.cubes = [QGraphicsTextItem("\uf1b2", item) for i in range(count)]
self.opacity_at_value_path = QPainterPath(QPointF(0.0, 0.0))
self.opacity_at_value_path.lineTo(QPointF(0.01, 1.0))
self.opacity_at_value_path.lineTo(QPointF(0.5, 1.0))
self.opacity_at_value_path.lineTo(QPointF(1.0, 0.0))
self.time_line = QTimeLine()
self.time_line.setLoopCount(0) # loop forever
self.time_line.setFrameRange(0, 10)
self.time_line.setDuration(duration)
self.time_line.setCurveShape(QTimeLine.LinearCurve)
self.time_line.valueChanged.connect(
self._handle_time_line_value_changed)
self.time_line.stateChanged.connect(
self._handle_time_line_state_changed)
font = QFont('Font Awesome 5 Free Solid')
item_rect = item.rect()
cube_size = percentage_size * 0.875 * item_rect.height()
font.setPixelSize(cube_size)
rect = item_rect.translated(-0.5 * cube_size + x_shift, -cube_size)
end = rect.center()
ctrl = end - QPointF(0, 0.6 * rect.height())
lower, upper = 0.2, 0.8
starts = [lower + i * (upper - lower) / count for i in range(count)]
starts = [
rect.topLeft() + QPointF(start * rect.width(), 0)
for start in starts
]
self.paths = [QPainterPath(start) for start in starts]
for path in self.paths:
path.quadTo(ctrl, end)
self.offsets = [i / count for i in range(count)]
for cube in self.cubes:
cube.setFont(font)
cube.setDefaultTextColor("#003333")
cube.setTransformOriginPoint(cube.boundingRect().center())
cube.hide()
cube.setOpacity(0)
def testWithoutArgs(self):
'''Connect python signal to QTimeLine.toggleDirection()'''
timeline = QTimeLine()
dummy = Dummy()
QObject.connect(dummy, SIGNAL('dummy()'),
timeline, SLOT('toggleDirection()'))
orig_dir = timeline.direction()
dummy.emit(SIGNAL('dummy()'))
new_dir = timeline.direction()
if orig_dir == QTimeLine.Forward:
self.assertEqual(new_dir, QTimeLine.Backward)
else:
self.assertEqual(new_dir, QTimeLine.Forward)
def testWithoutArgs(self):
'''Connect python signal to QTimeLine.toggleDirection()'''
timeline = QTimeLine()
dummy = Dummy()
QObject.connect(dummy, SIGNAL('dummy()'),
timeline, SLOT('toggleDirection()'))
orig_dir = timeline.direction()
dummy.emit(SIGNAL('dummy()'))
new_dir = timeline.direction()
if orig_dir == QTimeLine.Forward:
self.assertEqual(new_dir, QTimeLine.Backward)
else:
self.assertEqual(new_dir, QTimeLine.Forward)
def __init__(self, old_widget, new_widget):
QWidget.__init__(self, new_widget)
self.pixmap_opacity = 1.0
self.old_pixmap = QPixmap(new_widget.size())
old_widget.render(self.old_pixmap)
self.timeline = QTimeLine()
self.timeline.valueChanged.connect(self.animate)
self.timeline.finished.connect(self.close)
self.timeline.setDuration(230)
self.timeline.start()
self.resize(new_widget.size())
self.show()
def testWithoutArgs(self):
'''Connect QProcess.started() to QTimeLine.togglePaused()'''
process = QProcess()
timeline = QTimeLine()
QObject.connect(process, SIGNAL('finished(int, QProcess::ExitStatus)'),
timeline, SLOT('toggleDirection()'))
orig_dir = timeline.direction()
process.start(sys.executable, ['-c', '"print 42"'])
process.waitForFinished()
new_dir = timeline.direction()
if orig_dir == QTimeLine.Forward:
self.assertEqual(new_dir, QTimeLine.Backward)
else:
self.assertEqual(new_dir, QTimeLine.Forward)
def testWithoutArgs(self):
'''Connect QProcess.started() to QTimeLine.togglePaused()'''
process = QProcess()
timeline = QTimeLine()
QObject.connect(process, SIGNAL('finished(int, QProcess::ExitStatus)'),
timeline, SLOT('toggleDirection()'))
orig_dir = timeline.direction()
process.start(sys.executable, ['-c', '"print 42"'])
process.waitForFinished()
new_dir = timeline.direction()
if orig_dir == QTimeLine.Forward:
self.assertEqual(new_dir, QTimeLine.Backward)
else:
self.assertEqual(new_dir, QTimeLine.Forward)
def __init__(self,
disasm_graph: 'QDisassemblyGraph',
x: int,
y: int,
target_x: int,
target_y: int,
interval: int = 700,
max_frame: int = 100):
self.disasm_graph = disasm_graph
self.target_x = target_x
self.target_y = target_y
self.initial_x = x
self.initial_y = y
self.x_step = (self.target_x - self.initial_x) / max_frame
self.y_step = (self.target_y - self.initial_y) / max_frame
self._move_timeline = QTimeLine(interval)
self._move_timeline.setFrameRange(0, max_frame)
self._move_timeline.setUpdateInterval(10)
def resizeEvent(self, event):
"""
Updates zoom if needed when the view is resized.
Args:
event (QResizeEvent): a resize event
"""
new_size = self.size()
old_size = event.oldSize()
if new_size != old_size:
scene = self.scene()
if scene is not None:
self._update_zoom_limits()
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.finished.connect(
self._handle_resize_time_line_finished)
self.time_line.start()
super().resizeEvent(event)
class QViewPortMover:
def __init__(self,
disasm_graph: 'QDisassemblyGraph',
x: int,
y: int,
target_x: int,
target_y: int,
interval: int = 700,
max_frame: int = 100):
self.disasm_graph = disasm_graph
self.target_x = target_x
self.target_y = target_y
self.initial_x = x
self.initial_y = y
self.x_step = (self.target_x - self.initial_x) / max_frame
self.y_step = (self.target_y - self.initial_y) / max_frame
self._move_timeline = QTimeLine(interval)
self._move_timeline.setFrameRange(0, max_frame)
self._move_timeline.setUpdateInterval(10)
def start(self):
self._move_timeline.frameChanged.connect(self._set_pos)
self._move_timeline.start()
def _set_pos(self, step):
self.disasm_graph.centerOn(self.initial_x + self.x_step * step,
self.initial_y + self.y_step * step)
def resizeEvent(self, event):
"""
Updates zoom if needed when the view is resized.
Args:
event (QResizeEvent): a resize event
"""
new_size = self.size()
old_size = event.oldSize()
if new_size != old_size:
scene = self.scene()
if scene is not None:
self._update_zoom_limits()
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.finished.connect(self._handle_resize_time_line_finished)
self.time_line.start()
if new_size.width() > old_size.width() or new_size.height() > old_size.height():
if self.zoom_factor < self._min_zoom:
# Reset the zoom if the view has grown and the current zoom is too small
self.reset_zoom()
super().resizeEvent(event)
def __init__(self, toolbox, x, y, project_item, icon):
"""Tool icon for the Design View.
Args:
toolbox (ToolBoxUI): QMainWindow instance
x (float): Icon x coordinate
y (float): Icon y coordinate
project_item (ProjectItem): Item
icon (str): icon resource path
"""
super().__init__(
toolbox, x, y, project_item, icon, icon_color=QColor("red"), background_color=QColor("#ffe6e6")
)
self.time_line = QTimeLine()
self.time_line.setLoopCount(0) # loop forever
self.time_line.setFrameRange(0, 10)
self.time_line.setDuration(1200)
self.time_line.setDirection(QTimeLine.Backward)
self.time_line.valueChanged.connect(self._handle_time_line_value_changed)
self.time_line.stateChanged.connect(self._handle_time_line_state_changed)
self._svg_item_pos = self.svg_item.pos()
rect = self.svg_item.sceneBoundingRect()
self._anim_transformation_origin_point_y = -0.75 * rect.height()
self._anim_delta_x_factor = 0.5 * rect.width()
class NativeSignalsTest(UsesQCoreApplication):
def setUp(self):
UsesQCoreApplication.setUp(self)
self.called = False
self.timeline = QTimeLine(100)
def tearDown(self):
del self.called
del self.timeline
UsesQCoreApplication.tearDown(self)
def testSignalWithIntArgument(self):
def valueChangedSlot(value):
self.called = True
self.assertEqual(type(value), float)
self.app.quit()
self.timeline.valueChanged.connect(valueChangedSlot)
self.timeline.start()
self.app.exec_()
self.assert_(self.called)
def testSignalWithoutArguments(self):
def finishedSlot():
self.called = True
self.app.quit()
self.timeline.finished.connect(finishedSlot)
self.timeline.start()
self.app.exec_()
self.assert_(self.called)
def setUp(self):
UsesQCoreApplication.setUp(self)
self.receiver = ExtQObject()
self.timeline = QTimeLine(100)
def __init__(self):
global pixmapDict, specialDescriptionDict
super(MainWindow, self).__init__()
self.ui = Ui_pipboy()
self.ui.setupUi(self)
self.ui.chartContainer.setContentsMargins(0, 0, 0, 0)
self.anim = QTimeLine(20000, self)
self.anim.setFrameRange(0, 500)
self.anim.setLoopCount(0)
self.anim.setUpdateInterval(16)
self.anim.frameChanged[int].connect(
self.ui.perks_description.verticalScrollBar().setValue)
self.anim.frameChanged[int].connect(
self.ui.aid_effect_label.verticalScrollBar().setValue)
self.anim.frameChanged[int].connect(
self.ui.data_description.verticalScrollBar().setValue)
#self.anim2 = QPropertyAnimation(self.ui.main_tab, b"pos")
#self.anim2.setEasingCurve(QEasingCurve.OutBounce)
#self.anim2.setDuration(2000)
#self.anim2.setStartValue(QPoint(10, -400))
#self.anim2.setEndValue(QPoint(10, 0))
#self.anim2.start()
self.random = QRandomGenerator.global_()
self.ui.stat_tab.setFocus()
self.ui.stat_tab.currentChanged.connect(self.shift)
self.ui.stat_tab.installEventFilter(self)
self.ui.inv_tab.installEventFilter(self)
self.ui.special_list.installEventFilter(self)
self.ui.perks_list.installEventFilter(self)
self.ui.test_list.installEventFilter(self)
self.ui.apparel_list.installEventFilter(self)
self.ui.aid_list.installEventFilter(self)
self.ui.ammo_list.installEventFilter(self)
self.ui.data_list.installEventFilter(self)
self.ui.radio_list.installEventFilter(self)
self.ui.main_img.setPixmap(description.main_img_pixmap)
self.ui.special_image.setPixmap(description.pixmapDict.get(0))
self.ui.perks_image.setPixmap(description.pixmatPerksDict.get(0))
self.ui.weapon_image.setPixmap(description.pixmapWeaponDict.get(0))
self.ui.apparel_image.setPixmap(description.pixmapWeaponDict.get(0))
self.ui.aid_image.setPixmap(description.pixmapAidDict.get(0))
self.ui.ammo_image.setPixmap(description.pixmapAmmoDict.get(0))
lay = QVBoxLayout(self.ui.chartContainer)
lay.setContentsMargins(0, 0, 0, 0)
self.chartview = QtCharts.QChartView()
self.chartview.setContentsMargins(0, 0, 0, 0)
lay.addWidget(self.chartview)
self.chart = QtCharts.QChart()
self.chart.legend().hide()
self.chart.setAnimationOptions(QtCharts.QChart.SeriesAnimations)
self.series = QtCharts.QLineSeries()
self.pen = QPen(QColor(119, 251, 81, 255))
self.pen.setWidth(3)
self.pen.setJoinStyle(Qt.RoundJoin)
self.series.setPen(self.pen)
backgroundGradient = QLinearGradient(QPointF(100, 100),
QPointF(200, 200))
backgroundGradient.setColorAt(0, QColor(0, 0, 0, 255))
backgroundGradient.setColorAt(1, QColor(0, 0, 0, 255))
self.chart.setBackgroundBrush(backgroundGradient)
self.chart.setPlotAreaBackgroundBrush(backgroundGradient)
self.chart.addSeries(self.series)
self.chart.createDefaultAxes()
self.chart.axisX(self.series).setVisible(False)
self.chart.axisY(self.series).setVisible(False)
self.chart.axisY(self.series).setRange(0, 100)
self.chartview.setChart(self.chart)
self.play = False
self.player = QMediaPlayer()
self.playlistFalloutNewVegas = QMediaPlaylist(self.player)
self.playlistFalloutNewVegas.addMedia(
QMediaContent(description.falooutNewVegas))
self.playlistFalloutNewVegas.setCurrentIndex(1)
self.playListMohaveMusic = QMediaPlaylist(self.player)
for url in description.mohaveMusic:
self.playListMohaveMusic.addMedia(QMediaContent(url))
self.playListMohaveMusic.setCurrentIndex(1)
self.playlisNewVegas = QMediaPlaylist(self.player)
for url in description.newVegas:
self.playlisNewVegas.addMedia(QMediaContent(url))
self.playlisNewVegas.setCurrentIndex(1)
self.playlistDict = {
0: self.playlistFalloutNewVegas,
1: self.playListMohaveMusic,
2: self.playlisNewVegas
}
class MainWindow(QMainWindow):
def __init__(self):
global pixmapDict, specialDescriptionDict
super(MainWindow, self).__init__()
self.ui = Ui_pipboy()
self.ui.setupUi(self)
self.ui.chartContainer.setContentsMargins(0, 0, 0, 0)
self.anim = QTimeLine(20000, self)
self.anim.setFrameRange(0, 500)
self.anim.setLoopCount(0)
self.anim.setUpdateInterval(16)
self.anim.frameChanged[int].connect(
self.ui.perks_description.verticalScrollBar().setValue)
self.anim.frameChanged[int].connect(
self.ui.aid_effect_label.verticalScrollBar().setValue)
self.anim.frameChanged[int].connect(
self.ui.data_description.verticalScrollBar().setValue)
#self.anim2 = QPropertyAnimation(self.ui.main_tab, b"pos")
#self.anim2.setEasingCurve(QEasingCurve.OutBounce)
#self.anim2.setDuration(2000)
#self.anim2.setStartValue(QPoint(10, -400))
#self.anim2.setEndValue(QPoint(10, 0))
#self.anim2.start()
self.random = QRandomGenerator.global_()
self.ui.stat_tab.setFocus()
self.ui.stat_tab.currentChanged.connect(self.shift)
self.ui.stat_tab.installEventFilter(self)
self.ui.inv_tab.installEventFilter(self)
self.ui.special_list.installEventFilter(self)
self.ui.perks_list.installEventFilter(self)
self.ui.test_list.installEventFilter(self)
self.ui.apparel_list.installEventFilter(self)
self.ui.aid_list.installEventFilter(self)
self.ui.ammo_list.installEventFilter(self)
self.ui.data_list.installEventFilter(self)
self.ui.radio_list.installEventFilter(self)
self.ui.main_img.setPixmap(description.main_img_pixmap)
self.ui.special_image.setPixmap(description.pixmapDict.get(0))
self.ui.perks_image.setPixmap(description.pixmatPerksDict.get(0))
self.ui.weapon_image.setPixmap(description.pixmapWeaponDict.get(0))
self.ui.apparel_image.setPixmap(description.pixmapWeaponDict.get(0))
self.ui.aid_image.setPixmap(description.pixmapAidDict.get(0))
self.ui.ammo_image.setPixmap(description.pixmapAmmoDict.get(0))
lay = QVBoxLayout(self.ui.chartContainer)
lay.setContentsMargins(0, 0, 0, 0)
self.chartview = QtCharts.QChartView()
self.chartview.setContentsMargins(0, 0, 0, 0)
lay.addWidget(self.chartview)
self.chart = QtCharts.QChart()
self.chart.legend().hide()
self.chart.setAnimationOptions(QtCharts.QChart.SeriesAnimations)
self.series = QtCharts.QLineSeries()
self.pen = QPen(QColor(119, 251, 81, 255))
self.pen.setWidth(3)
self.pen.setJoinStyle(Qt.RoundJoin)
self.series.setPen(self.pen)
backgroundGradient = QLinearGradient(QPointF(100, 100),
QPointF(200, 200))
backgroundGradient.setColorAt(0, QColor(0, 0, 0, 255))
backgroundGradient.setColorAt(1, QColor(0, 0, 0, 255))
self.chart.setBackgroundBrush(backgroundGradient)
self.chart.setPlotAreaBackgroundBrush(backgroundGradient)
self.chart.addSeries(self.series)
self.chart.createDefaultAxes()
self.chart.axisX(self.series).setVisible(False)
self.chart.axisY(self.series).setVisible(False)
self.chart.axisY(self.series).setRange(0, 100)
self.chartview.setChart(self.chart)
self.play = False
self.player = QMediaPlayer()
self.playlistFalloutNewVegas = QMediaPlaylist(self.player)
self.playlistFalloutNewVegas.addMedia(
QMediaContent(description.falooutNewVegas))
self.playlistFalloutNewVegas.setCurrentIndex(1)
self.playListMohaveMusic = QMediaPlaylist(self.player)
for url in description.mohaveMusic:
self.playListMohaveMusic.addMedia(QMediaContent(url))
self.playListMohaveMusic.setCurrentIndex(1)
self.playlisNewVegas = QMediaPlaylist(self.player)
for url in description.newVegas:
self.playlisNewVegas.addMedia(QMediaContent(url))
self.playlisNewVegas.setCurrentIndex(1)
self.playlistDict = {
0: self.playlistFalloutNewVegas,
1: self.playListMohaveMusic,
2: self.playlisNewVegas
}
def append_data_and_plot(self, d):
"""Append and update the plot"""
num, m = d
ax1 = self.chart.axisX(self.series)
xmin = xmax = num
step = 100
for p in self.series.pointsVector()[-step:]:
xmin = min(p.x(), xmin)
xmax = max(p.x(), xmax)
xmin = max(0, xmax - step)
ax1.setMin(xmin)
ax1.setMax(xmax)
self.series.append(QPointF(num, m))
def eventFilter(self, obj, event):
if event.type() == QEvent.KeyPress:
#print(obj)
if event.key() == 49:
self.ui.main_tab.setCurrentIndex(1)
self.ui.stat_tab.setFocus()
#self.ui.hp_head.setValue(self.random.bounded(50, 100))
#self.ui.hp_left_arm.setValue(self.random.bounded(50, 100))
#self.ui.hp_right_arm.setValue(self.random.bounded(50, 100))
#self.ui.hp_left_leg.setValue(self.random.bounded(50, 100))
#self.ui.hp_right_leg.setValue(self.random.bounded(50, 100))
#self.ui.hp_body.setValue(self.random.bounded(50, 100))
return True
elif event.key() == 50:
self.ui.main_tab.setCurrentIndex(2)
self.ui.inv_tab.setFocus()
return True
elif event.key() == 51:
self.ui.main_tab.setCurrentIndex(3)
self.ui.data_list.setFocus()
self.ui.data_list.setCurrentRow(0)
return True
elif event.key() == 52:
self.ui.main_tab.setCurrentIndex(4)
return True
elif event.key() == 53:
self.ui.main_tab.setCurrentIndex(5)
self.ui.radio_list.setFocus()
self.ui.radio_list.setCurrentRow(0)
return True
elif event.key() == 54:
print(QApplication.focusWidget())
return True
#focus from stat_tab to special_list
elif (obj
== self.ui.stat_tab) and (self.ui.stat_tab.currentIndex()
== 1) and (event.key() == 47):
self.ui.special_list.setFocus()
self.ui.special_list.setCurrentRow(0)
self.ui.special_image.setPixmap(description.pixmapDict.get(0))
self.ui.special_description.setText(
description.specialDescriptionDict.get(0))
return True
#
elif (obj == self.ui.special_list) and (event.key() == 16777236):
self.ui.special_list.setCurrentRow(
self.ui.special_list.currentRow() + 1)
if (self.ui.special_list.currentRow() == -1):
self.ui.special_list.setCurrentRow(0)
self.ui.special_list.scrollToItem(
self.ui.special_list.currentItem())
self.ui.special_image.setPixmap(
description.pixmapDict.get(
self.ui.special_list.currentRow()))
self.ui.special_description.setText(
description.specialDescriptionDict.get(
self.ui.special_list.currentRow()))
elif (obj == self.ui.special_list) and (event.key() == 16777234):
self.ui.special_list.setCurrentRow(
self.ui.special_list.currentRow() - 1)
if (self.ui.special_list.currentRow() == -1):
self.ui.special_list.setCurrentRow(0)
self.ui.special_list.scrollToItem(
self.ui.special_list.currentItem())
self.ui.special_image.setPixmap(
description.pixmapDict.get(
self.ui.special_list.currentRow()))
self.ui.special_description.setText(
description.specialDescriptionDict.get(
self.ui.special_list.currentRow()))
#focus from special_list to stat_tab
elif (obj == self.ui.special_list) and (event.key() == 47):
self.ui.special_list.setCurrentRow(-1)
self.ui.stat_tab.setFocus()
return True
# focus from stat_tab to perks_list
elif (obj
== self.ui.stat_tab) and (self.ui.stat_tab.currentIndex()
== 2) and (event.key() == 47):
self.ui.perks_list.setFocus()
self.ui.perks_list.setCurrentRow(0)
self.anim.setCurrentTime(0)
self.anim.start()
elif (obj == self.ui.perks_list) and (event.key() == 16777236):
self.ui.perks_list.setCurrentRow(
self.ui.perks_list.currentRow() + 1)
if (self.ui.perks_list.currentRow() == -1):
self.ui.perks_list.setCurrentRow(0)
self.ui.perks_list.scrollToItem(
self.ui.perks_list.currentItem())
self.ui.perks_image.setPixmap(
description.pixmatPerksDict.get(
self.ui.perks_list.currentRow()))
self.ui.perks_description.setText(
description.perksDescriptionDict.get(
self.ui.perks_list.currentRow()))
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
elif (obj == self.ui.perks_list) and (event.key() == 16777234):
self.ui.perks_list.setCurrentRow(
self.ui.perks_list.currentRow() - 1)
if (self.ui.perks_list.currentRow() == -1):
self.ui.perks_list.setCurrentRow(0)
self.ui.perks_list.scrollToItem(
self.ui.perks_list.currentItem())
self.ui.perks_image.setPixmap(
description.pixmatPerksDict.get(
self.ui.perks_list.currentRow()))
self.ui.perks_description.setText(
description.perksDescriptionDict.get(
self.ui.perks_list.currentRow()))
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
#focus from perks_list to stat_tab
elif (obj == self.ui.perks_list) and (event.key() == 47):
self.ui.perks_list.setCurrentRow(-1)
self.ui.stat_tab.setFocus()
self.anim.stop()
return True
#/------------------------------------------------INV-WEAPON--------------------------------------------------/
elif (obj == self.ui.inv_tab) and (self.ui.inv_tab.currentIndex()
== 0) and (event.key() == 47):
self.ui.test_list.setFocus()
self.ui.test_list.setCurrentRow(0)
return True
elif (obj == self.ui.test_list) and (event.key() == 47):
self.ui.test_list.setCurrentRow(-1)
self.ui.inv_tab.setFocus()
return True
elif (obj == self.ui.test_list) and (event.key() == 16777236):
self.ui.test_list.setCurrentRow(
self.ui.test_list.currentRow() + 1)
if (self.ui.test_list.currentRow() == -1):
self.ui.test_list.setCurrentRow(0)
self.ui.test_list.scrollToItem(self.ui.test_list.currentItem())
self.ui.weapon_image.setPixmap(
description.pixmapWeaponDict.get(
self.ui.test_list.currentRow()))
self.ui.w_damage_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[0])
self.ui.w_weight_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[1])
self.ui.w_cost_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[2])
self.ui.w_durability_PB.setValue(self.random.bounded(20, 100))
self.ui.w_ammo_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[3])
self.ui.w_effect_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[4])
elif (obj == self.ui.test_list) and (event.key() == 16777234):
self.ui.test_list.setCurrentRow(
self.ui.test_list.currentRow() - 1)
if (self.ui.test_list.currentRow() == -1):
self.ui.test_list.setCurrentRow(0)
self.ui.test_list.scrollToItem(self.ui.test_list.currentItem())
self.ui.weapon_image.setPixmap(
description.pixmapWeaponDict.get(
self.ui.test_list.currentRow()))
self.ui.w_damage_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[0])
self.ui.w_weight_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[1])
self.ui.w_cost_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[2])
self.ui.w_durability_PB.setValue(self.random.bounded(20, 100))
self.ui.w_ammo_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[3])
self.ui.w_effect_label.setText(
description.weaponDescriptionDict.get(
self.ui.test_list.currentRow())[4])
#/------------------------------------------------INV-APPAREL--------------------------------------------------/
elif (obj == self.ui.inv_tab) and (self.ui.inv_tab.currentIndex()
== 1) and (event.key() == 47):
self.ui.apparel_list.setFocus()
self.ui.apparel_list.setCurrentRow(0)
return True
elif (obj == self.ui.apparel_list) and (event.key() == 47):
self.ui.apparel_list.setCurrentRow(-1)
self.ui.inv_tab.setFocus()
return True
elif (obj == self.ui.apparel_list) and (event.key() == 16777236):
self.ui.apparel_list.setCurrentRow(
self.ui.apparel_list.currentRow() + 1)
if (self.ui.apparel_list.currentRow() == -1):
self.ui.apparel_list.setCurrentRow(0)
self.ui.apparel_list.scrollToItem(
self.ui.apparel_list.currentItem())
self.ui.apparel_image.setPixmap(
description.pixmapClothesDict.get(
self.ui.apparel_list.currentRow()))
self.ui.a_damage_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[0])
self.ui.a_weight_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[1])
self.ui.a_cost_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[2])
self.ui.a_durability_PB.setValue(self.random.bounded(0, 100))
self.ui.a_type_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[3])
self.ui.a_effect_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[4])
elif (obj == self.ui.apparel_list) and (event.key() == 16777234):
self.ui.apparel_list.setCurrentRow(
self.ui.apparel_list.currentRow() - 1)
if (self.ui.apparel_list.currentRow() == -1):
self.ui.apparel_list.setCurrentRow(0)
self.ui.apparel_list.scrollToItem(
self.ui.apparel_list.currentItem())
self.ui.apparel_image.setPixmap(
description.pixmapClothesDict.get(
self.ui.apparel_list.currentRow()))
self.ui.a_damage_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[0])
self.ui.a_weight_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[1])
self.ui.a_cost_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[2])
self.ui.a_durability_PB.setValue(self.random.bounded(0, 100))
self.ui.a_type_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[3])
self.ui.a_effect_label.setText(
description.clothesDescriptionDict.get(
self.ui.apparel_list.currentRow())[4])
#/------------------------------------------------INV-AID--------------------------------------------------/
elif (obj == self.ui.inv_tab) and (self.ui.inv_tab.currentIndex()
== 2) and (event.key() == 47):
self.ui.aid_list.setFocus()
self.ui.aid_list.setCurrentRow(0)
return True
elif (obj == self.ui.aid_list) and (event.key() == 47):
self.ui.aid_list.setCurrentRow(-1)
self.ui.inv_tab.setFocus()
return True
elif (obj == self.ui.aid_list) and (event.key() == 16777236):
self.ui.aid_list.setCurrentRow(self.ui.aid_list.currentRow() +
1)
if (self.ui.aid_list.currentRow() == -1):
self.ui.aid_list.setCurrentRow(0)
self.ui.aid_list.scrollToItem(self.ui.aid_list.currentItem())
self.ui.aid_image.setPixmap(
description.pixmapAidDict.get(
self.ui.aid_list.currentRow()))
self.ui.aid_weight_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[0])
self.ui.aid_cost_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[1])
self.ui.aid_effect_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[2])
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
elif (obj == self.ui.aid_list) and (event.key() == 16777234):
self.ui.aid_list.setCurrentRow(self.ui.aid_list.currentRow() -
1)
if (self.ui.aid_list.currentRow() == -1):
self.ui.aid_list.setCurrentRow(0)
self.ui.aid_list.scrollToItem(self.ui.aid_list.currentItem())
self.ui.aid_image.setPixmap(
description.pixmapAidDict.get(
self.ui.aid_list.currentRow()))
self.ui.aid_weight_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[0])
self.ui.aid_cost_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[1])
self.ui.aid_effect_label.setText(
description.aidDescriptionDict.get(
self.ui.aid_list.currentRow())[2])
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
#/------------------------------------------------INV-AMMO--------------------------------------------------/
elif (obj == self.ui.inv_tab) and (self.ui.inv_tab.currentIndex()
== 3) and (event.key() == 47):
self.ui.ammo_list.setFocus()
self.ui.ammo_list.setCurrentRow(0)
return True
elif (obj == self.ui.ammo_list) and (event.key() == 47):
self.ui.ammo_list.setCurrentRow(-1)
self.ui.inv_tab.setFocus()
return True
elif (obj == self.ui.ammo_list) and (event.key() == 16777236):
self.ui.ammo_list.setCurrentRow(
self.ui.ammo_list.currentRow() + 1)
if (self.ui.ammo_list.currentRow() == -1):
self.ui.ammo_list.setCurrentRow(0)
self.ui.ammo_list.scrollToItem(self.ui.ammo_list.currentItem())
self.ui.ammo_image.setPixmap(
description.pixmapAmmoDict.get(
self.ui.ammo_list.currentRow()))
self.ui.ammo_weight_label.setText(
description.ammoDescriptionDict.get(
self.ui.ammo_list.currentRow())[0])
self.ui.ammo_cost_label.setText(
description.ammoDescriptionDict.get(
self.ui.ammo_list.currentRow())[1])
elif (obj == self.ui.ammo_list) and (event.key() == 16777234):
self.ui.ammo_list.setCurrentRow(
self.ui.ammo_list.currentRow() - 1)
if (self.ui.ammo_list.currentRow() == -1):
self.ui.ammo_list.setCurrentRow(0)
self.ui.ammo_list.scrollToItem(self.ui.ammo_list.currentItem())
self.ui.ammo_image.setPixmap(
description.pixmapAmmoDict.get(
self.ui.ammo_list.currentRow()))
self.ui.ammo_weight_label.setText(
description.ammoDescriptionDict.get(
self.ui.ammo_list.currentRow())[0])
self.ui.ammo_cost_label.setText(
description.ammoDescriptionDict.get(
self.ui.ammo_list.currentRow())[1])
#/------------------------------------------------DATA--------------------------------------------------/
elif (obj == self.ui.data_list) and (event.key() == 16777236):
self.ui.data_list.setCurrentRow(
self.ui.data_list.currentRow() + 1)
if (self.ui.data_list.currentRow() == -1):
self.ui.data_list.setCurrentRow(0)
self.ui.data_list.scrollToItem(self.ui.data_list.currentItem())
self.ui.data_description.setText(
description.questDescriptionDict.get(
self.ui.data_list.currentRow()))
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
elif (obj == self.ui.data_list) and (event.key() == 16777234):
self.ui.data_list.setCurrentRow(
self.ui.data_list.currentRow() - 1)
if (self.ui.data_list.currentRow() == -1):
self.ui.data_list.setCurrentRow(0)
self.ui.data_list.scrollToItem(self.ui.data_list.currentItem())
self.ui.data_description.setText(
description.questDescriptionDict.get(
self.ui.data_list.currentRow()))
self.anim.stop()
self.anim.setCurrentTime(0)
self.anim.start()
#/------------------------------------------------RADIO--------------------------------------------------/
elif (obj == self.ui.radio_list) and (event.key() == 16777236):
self.ui.radio_list.setCurrentRow(
self.ui.radio_list.currentRow() + 1)
if (self.ui.radio_list.currentRow() == -1):
self.ui.radio_list.setCurrentRow(0)
elif (obj == self.ui.radio_list) and (event.key() == 16777234):
self.ui.radio_list.setCurrentRow(
self.ui.radio_list.currentRow() - 1)
if (self.ui.radio_list.currentRow() == -1):
self.ui.radio_list.setCurrentRow(0)
#self.ui.data_description.setText(description.questDescriptionDict.get(self.ui.radio_list.currentRow()))
elif (obj == self.ui.radio_list) and (event.key() == 47):
if self.play:
self.player.stop()
self.play = False
else:
self.player.setPlaylist(
self.playlistDict.get(self.ui.radio_list.currentRow()))
self.playListMohaveMusic.setCurrentIndex(
self.random.bounded(0, 9) + 1)
self.playlisNewVegas.setCurrentIndex(
self.random.bounded(0, 10) + 1)
self.player.play()
self.play = True
return True
else:
#print(event.key())
return True
return super(MainWindow, self).eventFilter(obj, event)
@Slot()
def shift(self):
print(self.ui.stat_tab.currentIndex())
index = self.ui.stat_tab.currentIndex()
if index == 0:
self.ui.stat_tab.setGeometry(0, 0, 904, 380)
elif index == 1:
self.ui.stat_tab.setGeometry(-108, 0, 904, 380)
elif index == 2:
self.ui.stat_tab.setGeometry(-214, 0, 904, 380)
class ImporterExporterAnimation:
def __init__(self,
item,
duration=2000,
count=5,
percentage_size=0.24,
x_shift=0):
"""Initializes animation stuff.
Args:
item (QGraphicsItem): The item on top of which the animation should play.
"""
self._item = item
self.cubes = [QGraphicsTextItem("\uf1b2", item) for i in range(count)]
self.opacity_at_value_path = QPainterPath(QPointF(0.0, 0.0))
self.opacity_at_value_path.lineTo(QPointF(0.01, 1.0))
self.opacity_at_value_path.lineTo(QPointF(0.5, 1.0))
self.opacity_at_value_path.lineTo(QPointF(1.0, 0.0))
self.time_line = QTimeLine()
self.time_line.setLoopCount(0) # loop forever
self.time_line.setFrameRange(0, 10)
self.time_line.setDuration(duration)
self.time_line.setCurveShape(QTimeLine.LinearCurve)
self.time_line.valueChanged.connect(
self._handle_time_line_value_changed)
self.time_line.stateChanged.connect(
self._handle_time_line_state_changed)
font = QFont('Font Awesome 5 Free Solid')
item_rect = item.rect()
cube_size = percentage_size * 0.875 * item_rect.height()
font.setPixelSize(cube_size)
rect = item_rect.translated(-0.5 * cube_size + x_shift, -cube_size)
end = rect.center()
ctrl = end - QPointF(0, 0.6 * rect.height())
lower, upper = 0.2, 0.8
starts = [lower + i * (upper - lower) / count for i in range(count)]
starts = [
rect.topLeft() + QPointF(start * rect.width(), 0)
for start in starts
]
self.paths = [QPainterPath(start) for start in starts]
for path in self.paths:
path.quadTo(ctrl, end)
self.offsets = [i / count for i in range(count)]
for cube in self.cubes:
cube.setFont(font)
cube.setDefaultTextColor("#003333")
cube.setTransformOriginPoint(cube.boundingRect().center())
cube.hide()
cube.setOpacity(0)
@Slot(float)
def _handle_time_line_value_changed(self, value):
for cube, offset, path in zip(self.cubes, self.offsets, self.paths):
value = (offset + value) % 1.0
opacity = self.opacity_at_value_path.pointAtPercent(value).y()
cube.setOpacity(opacity)
percent = self.percent(value)
point = path.pointAtPercent(percent)
angle = percent * 360.0
cube.setPos(point)
cube.setRotation(angle)
@Slot("QTimeLine::State")
def _handle_time_line_state_changed(self, new_state):
if new_state == QTimeLine.Running:
random.shuffle(self.offsets)
for cube in self.cubes:
cube.show()
elif new_state == QTimeLine.NotRunning:
for cube in self.cubes:
cube.hide()
def start(self):
"""Starts the animation."""
if self.time_line.state() == QTimeLine.Running:
return
self.time_line.start()
@staticmethod
def percent(value):
raise NotImplementedError()
def stop(self):
"""Stops the animation"""
self.time_line.stop()
def setUp(self):
UsesQCoreApplication.setUp(self)
self.receiver = ExtQObject()
self.timeline = QTimeLine(100)
class CustomQGraphicsView(QGraphicsView):
"""Super class for Design and Graph QGraphicsViews.
Attributes:
parent (QWidget): Parent widget
"""
def __init__(self, parent):
"""Init CustomQGraphicsView."""
super().__init__(parent=parent)
self._zoom_factor_base = 1.0015
self._angle = 120
self._num_scheduled_scalings = 0
self.anim = None
self._scene_fitting_zoom = 1.0
self._max_zoom = 10.0
self._min_zoom = 0.1
self._qsettings = QSettings("SpineProject", "Spine Toolbox")
def keyPressEvent(self, event):
"""Overridden method. Enable zooming with plus and minus keys (comma resets zoom).
Send event downstream to QGraphicsItems if pressed key is not handled here.
Args:
event (QKeyEvent): Pressed key
"""
if event.key() == Qt.Key_Plus:
self.zoom_in()
elif event.key() == Qt.Key_Minus:
self.zoom_out()
elif event.key() == Qt.Key_Comma:
self.reset_zoom()
else:
super().keyPressEvent(event)
def enterEvent(self, event):
"""Overridden method. Do not show the stupid open hand mouse cursor.
Args:
event (QEvent): event
"""
super().enterEvent(event)
self.viewport().setCursor(Qt.ArrowCursor)
def mousePressEvent(self, event):
"""Set rubber band selection mode if Control pressed.
Enable resetting the zoom factor from the middle mouse button.
"""
item = self.itemAt(event.pos())
# print(not item, not int(item.acceptedMouseButtons() & event.buttons()))
if not item or not item.acceptedMouseButtons() & event.buttons():
if event.modifiers() & Qt.ControlModifier:
self.setDragMode(QGraphicsView.RubberBandDrag)
self.viewport().setCursor(Qt.CrossCursor)
if event.button() == Qt.MidButton:
self.reset_zoom()
super().mousePressEvent(event)
def mouseReleaseEvent(self, event):
"""Reestablish scroll hand drag mode."""
super().mouseReleaseEvent(event)
item = self.itemAt(event.pos())
if not item or not item.acceptedMouseButtons():
self.setDragMode(QGraphicsView.ScrollHandDrag)
self.viewport().setCursor(Qt.ArrowCursor)
def wheelEvent(self, event):
"""Zoom in/out.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
smooth_zoom = self._qsettings.value("appSettings/smoothZoom", defaultValue="false")
if smooth_zoom == "true":
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._num_scheduled_scalings += num_steps
if self._num_scheduled_scalings * num_steps < 0:
self._num_scheduled_scalings = num_steps
if self.anim:
self.anim.deleteLater()
self.anim = QTimeLine(200, self)
self.anim.setUpdateInterval(20)
self.anim.valueChanged.connect(lambda x, pos=event.pos(): self.scaling_time(pos))
self.anim.finished.connect(self.anim_finished)
self.anim.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base ** angle
self.gentle_zoom(factor, event.pos())
def resizeEvent(self, event):
"""
Updates zoom if needed when the view is resized.
Args:
event (QResizeEvent): a resize event
"""
new_size = self.size()
old_size = event.oldSize()
if new_size != old_size:
scene = self.scene()
if scene is not None:
self._update_zoom_limits(scene.sceneRect())
if new_size.width() > old_size.width() or new_size.height() > old_size.height():
transform = self.transform()
zoom = transform.m11()
if zoom < self._min_zoom:
# Reset the zoom if the view has grown and the current zoom is too small
self.reset_zoom()
super().resizeEvent(event)
def setScene(self, scene):
"""
Sets a new scene to this view.
Args:
scene (ShrinkingScene): a new scene
"""
super().setScene(scene)
scene.sceneRectChanged.connect(self._update_zoom_limits)
scene.item_move_finished.connect(self._ensure_item_visible)
@Slot("QRectF")
def _update_zoom_limits(self, rect):
"""
Updates the minimum zoom limit and the zoom level with which the entire scene fits the view.
Args:
rect (QRectF): the scene's rect
"""
scene_extent = max(rect.width(), rect.height())
if not scene_extent:
return
size = self.size()
extent = min(size.height(), size.width())
self._scene_fitting_zoom = extent / scene_extent
self._min_zoom = min(self._scene_fitting_zoom, 0.1)
def scaling_time(self, pos):
"""Called when animation value for smooth zoom changes. Perform zoom."""
factor = 1.0 + self._num_scheduled_scalings / 100.0
self.gentle_zoom(factor, pos)
def anim_finished(self):
"""Called when animation for smooth zoom finishes. Clean up."""
if self._num_scheduled_scalings > 0:
self._num_scheduled_scalings -= 1
else:
self._num_scheduled_scalings += 1
self.sender().deleteLater()
self.anim = None
def zoom_in(self):
"""Perform a zoom in with a fixed scaling."""
self.gentle_zoom(self._zoom_factor_base ** self._angle, self.viewport().rect().center())
def zoom_out(self):
"""Perform a zoom out with a fixed scaling."""
self.gentle_zoom(self._zoom_factor_base ** -self._angle, self.viewport().rect().center())
def reset_zoom(self):
"""Reset zoom to the default factor."""
self.resetTransform()
if self._scene_fitting_zoom < 1.0:
self.scale(self._scene_fitting_zoom, self._scene_fitting_zoom)
def gentle_zoom(self, factor, zoom_focus):
"""
Perform a zoom by a given factor.
Args:
factor (float): a scaling factor relative to the current scene scaling
zoom_focus (QPoint): focus of the zoom, e.g. mouse pointer position
"""
initial_focus_on_scene = self.mapToScene(zoom_focus)
transform = self.transform()
current_zoom = transform.m11() # The [1, 1] element contains the x scaling factor
proposed_zoom = current_zoom * factor
if proposed_zoom < self._min_zoom:
factor = self._min_zoom / current_zoom
elif proposed_zoom > self._max_zoom:
factor = self._max_zoom / current_zoom
if math.isclose(factor, 1.0):
return False
self.scale(factor, factor)
post_scaling_focus_on_scene = self.mapToScene(zoom_focus)
center_on_scene = self.mapToScene(self.viewport().rect().center())
focus_diff = post_scaling_focus_on_scene - initial_focus_on_scene
self.centerOn(center_on_scene - focus_diff)
return True
@Slot("QGraphicsItem")
def _ensure_item_visible(self, item):
"""Resets zoom if item is not visible."""
if not self.viewport().geometry().contains(self.mapFromScene(item.pos())):
self.reset_zoom()
class GraphViewGraphicsView(QGraphicsView):
"""A QGraphicsView to use with the GraphViewForm."""
item_dropped = Signal("QPoint", "QString", name="item_dropped")
def __init__(self, parent):
"""Init class."""
super().__init__(parent)
self._graph_view_form = None
self._zoom_factor_base = 1.0015
self._angle = 120
self.target_viewport_pos = None
self.target_scene_pos = QPointF(0, 0)
self._num_scheduled_scalings = 0
self.anim = None
self.rel_zoom_factor = 1.0
self.default_zoom_factor = None
self.max_rel_zoom_factor = 10.0
self.min_rel_zoom_factor = 0.1
def mouseMoveEvent(self, event):
"""Register mouse position to recenter the scene after zoom."""
super().mouseMoveEvent(event)
if self.target_viewport_pos is not None:
delta = self.target_viewport_pos - event.pos()
if delta.manhattanLength() <= 3:
return
self.target_viewport_pos = event.pos()
self.target_scene_pos = self.mapToScene(self.target_viewport_pos)
def wheelEvent(self, event):
"""Zoom in/out."""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
try:
config = self._graph_view_form._data_store._toolbox._config
use_smooth_zoom = config.getboolean("settings", "use_smooth_zoom")
except AttributeError:
use_smooth_zoom = False
if use_smooth_zoom:
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._num_scheduled_scalings += num_steps
if self._num_scheduled_scalings * num_steps < 0:
self._num_scheduled_scalings = num_steps
if self.anim:
self.anim.deleteLater()
self.anim = QTimeLine(200, self)
self.anim.setUpdateInterval(20)
self.anim.valueChanged.connect(self.scaling_time)
self.anim.finished.connect(self.anim_finished)
self.anim.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base**angle
self.gentle_zoom(factor)
def scaling_time(self, x):
"""Called when animation value for smooth zoom changes. Perform zoom."""
factor = 1.0 + self._num_scheduled_scalings / 100.0
self.gentle_zoom(factor)
def anim_finished(self):
"""Called when animation for smooth zoom finishes. Clean up."""
if self._num_scheduled_scalings > 0:
self._num_scheduled_scalings -= 1
else:
self._num_scheduled_scalings += 1
self.sender().deleteLater()
self.anim = None
def zoom_in(self):
"""Perform a zoom in with a fixed scaling."""
self.target_viewport_pos = self.viewport().rect().center()
self.target_scene_pos = self.mapToScene(self.target_viewport_pos)
self.gentle_zoom(self._zoom_factor_base**self._angle)
def zoom_out(self):
"""Perform a zoom out with a fixed scaling."""
self.gentle_zoom(self._zoom_factor_base**-self._angle)
def reset_zoom(self):
"""Reset zoom to the default factor."""
if not self.default_zoom_factor:
return
self.resetTransform()
self.scale(self.default_zoom_factor, self.default_zoom_factor)
self.rel_zoom_factor = 1.0
def gentle_zoom(self, factor):
"""Perform a zoom by a given factor."""
new_rel_zoom_factor = self.rel_zoom_factor * factor
if new_rel_zoom_factor > self.max_rel_zoom_factor or new_rel_zoom_factor < self.min_rel_zoom_factor:
return
self.rel_zoom_factor = new_rel_zoom_factor
self.scale(factor, factor)
self.centerOn(self.target_scene_pos)
delta_viewport_pos = self.target_viewport_pos - self.viewport(
).geometry().center()
viewport_center = self.mapFromScene(
self.target_scene_pos) - delta_viewport_pos
self.centerOn(self.mapToScene(viewport_center))
def scale_to_fit_scene(self):
"""Scale view so the scene fits best in it."""
if not self.isVisible():
return
scene_rect = self.sceneRect()
scene_extent = max(scene_rect.width(), scene_rect.height())
if not scene_extent:
return
size = self.size()
extent = min(size.height(), size.width())
self.default_zoom_factor = extent / scene_extent
self.reset_zoom()
def mousePressEvent(self, event):
"""Set rubber band drag mode if control pressed."""
if event.modifiers() & Qt.ControlModifier:
self.setDragMode(QGraphicsView.RubberBandDrag)
if event.button() == Qt.MidButton:
self.reset_zoom()
super().mousePressEvent(event)
def mouseReleaseEvent(self, event):
"""Restablish scroll hand drag mode."""
super().mouseReleaseEvent(event)
self.setDragMode(QGraphicsView.ScrollHandDrag)
def dragLeaveEvent(self, event):
"""Accept event. Then call the super class method
only if drag source is not DragListView."""
event.accept()
def dragEnterEvent(self, event):
"""Accept event. Then call the super class method
only if drag source is not DragListView."""
event.accept()
source = event.source()
if not isinstance(source, DragListView):
super().dragEnterEvent(event)
def dragMoveEvent(self, event):
"""Accept event. Then call the super class method
only if drag source is not DragListView."""
event.accept()
source = event.source()
if not isinstance(source, DragListView):
super().dragMoveEvent(event)
def dropEvent(self, event):
"""Only accept drops when the source is an instance of DragListView.
Capture text from event's mimedata and emit signal.
"""
source = event.source()
if not isinstance(source, DragListView):
super().dropEvent(event)
return
event.acceptProposedAction()
text = event.mimeData().text()
pos = event.pos()
self.item_dropped.emit(pos, text)
def contextMenuEvent(self, e):
"""Show context menu.
Args:
e (QContextMenuEvent): Context menu event
"""
super().contextMenuEvent(e)
if e.isAccepted():
return
if not self._graph_view_form:
e.ignore()
return
e.accept()
self._graph_view_form.show_graph_view_context_menu(e.globalPos())
class EntityQGraphicsView(CustomQGraphicsView):
"""QGraphicsView for the Entity Graph View."""
def __init__(self, parent):
"""
Args:
parent (QWidget): Graph View Form's (QMainWindow) central widget (self.centralwidget)
"""
super().__init__(
parent=parent) # Parent is passed to QWidget's constructor
self._spine_db_editor = None
self._menu = QMenu(self)
self._hovered_obj_item = None
self.relationship_class = None
self.cross_hairs_items = []
def set_cross_hairs_items(self, relationship_class, cross_hairs_items):
"""Sets 'cross_hairs' items for relationship creation.
Args:
relationship_class (dict)
cross_hairs_items (list(QGraphicsItems))
"""
self.relationship_class = relationship_class
self.cross_hairs_items = cross_hairs_items
for item in cross_hairs_items:
self.scene().addItem(item)
item.apply_zoom(self.zoom_factor)
cursor_pos = self.mapFromGlobal(QCursor.pos())
self._update_cross_hairs_pos(cursor_pos)
self.viewport().setCursor(Qt.BlankCursor)
def clear_cross_hairs_items(self):
self.relationship_class = None
for item in self.cross_hairs_items:
item.hide()
item.scene().removeItem(item)
self.cross_hairs_items.clear()
self.viewport().unsetCursor()
def connect_spine_db_editor(self, spine_db_editor):
self._spine_db_editor = spine_db_editor
self.create_context_menu()
def create_context_menu(self):
self._menu.addAction(
self._spine_db_editor.ui.actionExport_graph_as_pdf)
self._menu.addSeparator()
for action in self._spine_db_editor.ui.menuGraph.actions():
self._menu.addAction(action)
def edit_selected(self):
"""Edits selected items using the connected Spine db editor."""
self._spine_db_editor.edit_entity_graph_items()
def remove_selected(self):
"""Removes selected items using the connected Spine db editor."""
self._spine_db_editor.remove_entity_graph_items()
def _cross_hairs_has_valid_taget(self):
return (self._hovered_obj_item.db_map
== self.cross_hairs_items[0].db_map
and self._hovered_obj_item.entity_class_id
in self.relationship_class["object_class_ids_to_go"])
def mousePressEvent(self, event):
"""Handles relationship creation if one it's in process."""
if not self.cross_hairs_items:
super().mousePressEvent(event)
return
if event.buttons() & Qt.RightButton or not self._hovered_obj_item:
self.clear_cross_hairs_items()
return
if self._cross_hairs_has_valid_taget():
self.relationship_class["object_class_ids_to_go"].remove(
self._hovered_obj_item.entity_class_id)
if self.relationship_class["object_class_ids_to_go"]:
# Add hovered as member and keep going, we're not done yet
ch_rel_item = self.cross_hairs_items[1]
ch_arc_item = CrossHairsArcItem(
ch_rel_item, self._hovered_obj_item,
self._spine_db_editor._ARC_WIDTH)
ch_rel_item.refresh_icon()
self.scene().addItem(ch_arc_item)
ch_arc_item.apply_zoom(self.zoom_factor)
self.cross_hairs_items.append(ch_arc_item)
return
# Here we're done, add the relationships between the hovered and the members
ch_item, _, *ch_arc_items = self.cross_hairs_items
obj_items = [arc_item.obj_item for arc_item in ch_arc_items]
obj_items.remove(ch_item)
self._spine_db_editor.finalize_relationship(
self.relationship_class, self._hovered_obj_item, *obj_items)
self.clear_cross_hairs_items()
def mouseMoveEvent(self, event):
"""Updates the hovered object item if we're in relationship creation mode."""
if not self.cross_hairs_items:
super().mouseMoveEvent(event)
return
self._update_cross_hairs_pos(event.pos())
def _update_cross_hairs_pos(self, pos):
"""Updates the hovered object item and sets the 'cross_hairs' icon accordingly.
Args:
pos (QPoint): the desired position in view coordinates
"""
cross_hairs_item = self.cross_hairs_items[0]
scene_pos = self.mapToScene(pos)
delta = scene_pos - cross_hairs_item.scenePos()
cross_hairs_item.block_move_by(delta.x(), delta.y())
self._hovered_obj_item = None
obj_items = [
item for item in self.items(pos) if isinstance(item, ObjectItem)
]
self._hovered_obj_item = next(iter(obj_items), None)
if self._hovered_obj_item is not None:
if self._cross_hairs_has_valid_taget():
if len(self.relationship_class["object_class_ids_to_go"]) == 1:
self.cross_hairs_items[0].set_check_icon()
else:
self.cross_hairs_items[0].set_plus_icon()
return
self.cross_hairs_items[0].set_ban_icon()
return
self.cross_hairs_items[0].set_normal_icon()
def mouseReleaseEvent(self, event):
if not self.cross_hairs_items:
super().mouseReleaseEvent(event)
def keyPressEvent(self, event):
"""Aborts relationship creation if user presses ESC."""
super().keyPressEvent(event)
if event.key() == Qt.Key_Escape and self.cross_hairs_items:
self._spine_db_editor.msg.emit("Relationship creation aborted.")
self.clear_cross_hairs_items()
def contextMenuEvent(self, e):
"""Shows context menu.
Args:
e (QContextMenuEvent): Context menu event
"""
super().contextMenuEvent(e)
if e.isAccepted():
return
e.accept()
self._spine_db_editor._handle_menu_graph_about_to_show()
self._menu.exec_(e.globalPos())
def _compute_min_zoom(self):
return 0.5 * self.zoom_factor * self._items_fitting_zoom
def _use_smooth_zoom(self):
return self._qsettings.value("appSettings/smoothEntityGraphZoom",
defaultValue="false") == "true"
def _zoom(self, factor):
self.scale(factor, factor)
self.apply_zoom()
def apply_zoom(self):
for item in self.items():
if hasattr(item, "apply_zoom"):
item.apply_zoom(self.zoom_factor)
def wheelEvent(self, event):
"""Zooms in/out. If user has pressed the shift key, rotates instead.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.modifiers() != Qt.ShiftModifier:
super().wheelEvent(event)
return
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
smooth_rotation = self._qsettings.value(
"appSettings/smoothEntityGraphRotation", defaultValue="false")
if smooth_rotation == "true":
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._scheduled_transformations += num_steps
if self._scheduled_transformations * num_steps < 0:
self._scheduled_transformations = num_steps
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.setUpdateInterval(20)
self.time_line.valueChanged.connect(
self._handle_rotation_time_line_advanced)
self.time_line.finished.connect(
self._handle_transformation_time_line_finished)
self.time_line.start()
else:
angle = event.angleDelta().y() / 8
self._rotate(angle)
self._set_preferred_scene_rect()
def _handle_rotation_time_line_advanced(self, pos):
"""Performs rotation whenever the smooth rotation time line advances."""
angle = self._scheduled_transformations / 2.0
self._rotate(angle)
def _rotate(self, angle):
center = self._get_viewport_scene_rect().center()
for item in self.items():
if hasattr(item, "apply_rotation"):
item.apply_rotation(angle, center)
def rotate_clockwise(self):
"""Performs a rotate clockwise with fixed angle."""
self._rotate(-self._angle / 8)
self._set_preferred_scene_rect()
def rotate_anticlockwise(self):
"""Performs a rotate anticlockwise with fixed angle."""
self._rotate(self._angle / 8)
self._set_preferred_scene_rect()
class EntityQGraphicsView(CustomQGraphicsView):
"""QGraphicsView for the Entity Graph View."""
graph_selection_changed = Signal(object)
def __init__(self, parent):
"""
Args:
parent (QWidget): Graph View Form's (QMainWindow) central widget (self.centralwidget)
"""
super().__init__(
parent=parent) # Parent is passed to QWidget's constructor
self._spine_db_editor = None
self._menu = QMenu(self)
self.pos_x_parameter = "x"
self.pos_y_parameter = "y"
self.selected_items = list()
self.removed_items = list()
self.hidden_items = list()
self.prunned_entity_ids = dict()
self.heat_map_items = list()
self._point_value_tuples_per_parameter_name = dict(
) # Used in the heat map menu
self._hovered_obj_item = None
self.relationship_class = None
self.cross_hairs_items = []
self.auto_expand_objects = None
self._auto_expand_objects_action = None
self._add_objects_action = None
self._save_pos_action = None
self._clear_pos_action = None
self._hide_action = None
self._show_hidden_action = None
self._prune_entities_action = None
self._prune_classes_action = None
self._restore_all_pruned_action = None
self._rebuild_action = None
self._export_as_pdf_action = None
self._zoom_action = None
self._rotate_action = None
self._arc_length_action = None
self._restore_pruned_menu = None
self._parameter_heat_map_menu = None
self._previous_mouse_pos = None
self._context_menu_pos = None
@property
def entity_items(self):
return [
x for x in self.scene().items()
if isinstance(x, EntityItem) and x not in self.removed_items
]
def setScene(self, scene):
super().setScene(scene)
scene.selectionChanged.connect(self._handle_scene_selection_changed)
@Slot()
def _handle_scene_selection_changed(self):
"""Filters parameters by selected objects in the graph."""
if self.scene() is None:
return
selected_items = self.scene().selectedItems()
selected_objs = [
x for x in selected_items if isinstance(x, ObjectItem)
]
selected_rels = [
x for x in selected_items if isinstance(x, RelationshipItem)
]
self.selected_items = selected_objs + selected_rels
self.graph_selection_changed.emit({
"object": selected_objs,
"relationship": selected_rels
})
def connect_spine_db_editor(self, spine_db_editor):
self._spine_db_editor = spine_db_editor
self.populate_context_menu()
def populate_context_menu(self):
self._auto_expand_objects_action = self._menu.addAction(
"Auto-expand objects")
self._auto_expand_objects_action.setCheckable(True)
self.auto_expand_objects = (self._spine_db_editor.qsettings.value(
"appSettings/autoExpandObjects", defaultValue="false") == "true")
self._auto_expand_objects_action.setChecked(self.auto_expand_objects)
self._auto_expand_objects_action.toggled.connect(
self.set_auto_expand_objects)
self._menu.addSeparator()
self._add_objects_action = self._menu.addAction(
"Add objects", self.add_objects_at_position)
self._menu.addSeparator()
self._save_pos_action = self._menu.addAction("Save positions",
self.save_positions)
self._clear_pos_action = self._menu.addAction(
"Clear saved positions", self.clear_saved_positions)
self._menu.addSeparator()
self._hide_action = self._menu.addAction("Hide",
self.hide_selected_items)
self._show_hidden_action = self._menu.addAction(
"Show hidden", self.show_hidden_items)
self._menu.addSeparator()
self._prune_entities_action = self._menu.addAction(
"Prune entities", self.prune_selected_entities)
self._prune_classes_action = self._menu.addAction(
"Prune classes", self.prune_selected_classes)
self._restore_pruned_menu = self._menu.addMenu("Restore")
self._restore_pruned_menu.triggered.connect(self.restore_pruned_items)
self._restore_all_pruned_action = self._menu.addAction(
"Restore all", self.restore_all_pruned_items)
self._menu.addSeparator()
# FIXME: The heap map doesn't seem to be working nicely
# self._parameter_heat_map_menu = self._menu.addMenu("Add heat map")
# self._parameter_heat_map_menu.triggered.connect(self.add_heat_map)
self._menu.addSeparator()
self._rebuild_action = self._menu.addAction(
"Rebuild", self._spine_db_editor.build_graph)
self._export_as_pdf_action = self._menu.addAction(
"Export as PDF", self.export_as_pdf)
self._menu.addSeparator()
self._zoom_action = ToolBarWidgetAction("Zoom",
self._menu,
compact=True)
self._zoom_action.tool_bar.addAction(
"-", self.zoom_out).setToolTip("Zoom out")
self._zoom_action.tool_bar.addAction(
"Reset", self.reset_zoom).setToolTip("Reset zoom")
self._zoom_action.tool_bar.addAction(
"+", self.zoom_in).setToolTip("Zoom in")
self._rotate_action = ToolBarWidgetAction("Rotate",
self._menu,
compact=True)
self._rotate_action.tool_bar.addAction(
"\u2b6f",
self.rotate_anticlockwise).setToolTip("Rotate counter-clockwise")
self._rotate_action.tool_bar.addAction(
"\u2b6e", self.rotate_clockwise).setToolTip("Rotate clockwise")
self._arc_length_action = ToolBarWidgetAction("Arc length",
self._menu,
compact=True)
self._arc_length_action.tool_bar.addAction(
QIcon(CharIconEngine("\uf422")), "",
self.decrease_arc_length).setToolTip("Decrease arc length")
self._arc_length_action.tool_bar.addAction(
QIcon(CharIconEngine("\uf424")), "",
self.increase_arc_length).setToolTip("Increase arc length")
self._menu.addSeparator()
self._menu.addAction(self._zoom_action)
self._menu.addAction(self._arc_length_action)
self._menu.addAction(self._rotate_action)
self._menu.aboutToShow.connect(self._update_actions_visibility)
def increase_arc_length(self):
for item in self.entity_items:
item.setPos(1.1 * item.pos())
item.update_arcs_line()
def decrease_arc_length(self):
for item in self.entity_items:
item.setPos(item.pos() / 1.1)
item.update_arcs_line()
@Slot()
def _update_actions_visibility(self):
"""Enables or disables actions according to current selection in the graph."""
self._save_pos_action.setEnabled(bool(self.selected_items))
self._clear_pos_action.setEnabled(bool(self.selected_items))
self._hide_action.setEnabled(bool(self.selected_items))
self._show_hidden_action.setEnabled(bool(self.hidden_items))
self._prune_entities_action.setEnabled(bool(self.selected_items))
self._prune_classes_action.setEnabled(bool(self.selected_items))
self._restore_pruned_menu.setEnabled(
any(self.prunned_entity_ids.values()))
self._restore_all_pruned_action.setEnabled(
any(self.prunned_entity_ids.values()))
self._prune_entities_action.setText(
f"Prune {self._get_selected_entity_names()}")
self._prune_classes_action.setText(
f"Prune {self._get_selected_class_names()}")
has_graph = bool(self.items())
self._rebuild_action.setEnabled(has_graph)
self._zoom_action.setEnabled(has_graph)
self._rotate_action.setEnabled(has_graph)
self._export_as_pdf_action.setEnabled(has_graph)
# FIXME: The heap map doesn't seem to be working nicely
# self._parameter_heat_map_menu.setEnabled(has_graph)
# if has_graph:
# self._populate_add_heat_map_menu()
def make_items_menu(self):
menu = QMenu(self)
menu.addAction(self._save_pos_action)
menu.addAction(self._clear_pos_action)
menu.addSeparator()
menu.addAction(self._hide_action)
menu.addAction(self._prune_entities_action)
menu.addAction(self._prune_classes_action)
menu.addSeparator()
menu.addAction("Edit", self.edit_selected)
menu.addAction("Remove", self.remove_selected)
menu.aboutToShow.connect(self._update_actions_visibility)
return menu
@Slot(bool)
def set_auto_expand_objects(self, checked=False):
self.auto_expand_objects = checked
self._auto_expand_objects_action.setChecked(checked)
self._spine_db_editor.build_graph()
@Slot(bool)
def add_objects_at_position(self, checked=False):
self._spine_db_editor.add_objects_at_position(self._context_menu_pos)
@Slot(bool)
def edit_selected(self, _=False):
"""Edits selected items."""
obj_items = [
item for item in self.selected_items
if isinstance(item, ObjectItem)
]
rel_items = [
item for item in self.selected_items
if isinstance(item, RelationshipItem)
]
self._spine_db_editor.show_edit_objects_form(obj_items)
self._spine_db_editor.show_edit_relationships_form(rel_items)
@Slot(bool)
def remove_selected(self, _=False):
"""Removes selected items."""
if not self.selected_items:
return
db_map_typed_data = {}
for item in self.selected_items:
db_map, entity_id = item.db_map_entity_id
db_map_typed_data.setdefault(db_map, {}).setdefault(
item.entity_type, set()).add(entity_id)
self._spine_db_editor.db_mngr.remove_items(db_map_typed_data)
@Slot(bool)
def hide_selected_items(self, checked=False):
"""Hides selected items."""
self.hidden_items.extend(self.selected_items)
for item in self.selected_items:
item.set_all_visible(False)
@Slot(bool)
def show_hidden_items(self, checked=False):
"""Shows hidden items."""
if not self.scene():
return
for item in self.hidden_items:
item.set_all_visible(True)
self.hidden_items.clear()
def _get_selected_entity_names(self):
if not self.selected_items:
return ""
names = "'" + self.selected_items[0].entity_name + "'"
if len(self.selected_items) > 1:
names += f" and {len(self.selected_items) - 1} other entities"
return names
def _get_selected_class_names(self):
if not self.selected_items:
return ""
entity_class_names = list(
set(item.entity_class_name for item in self.selected_items))
names = "'" + entity_class_names[0] + "'"
if len(entity_class_names) > 1:
names += f" and {len(entity_class_names) - 1} other classes"
return names
@Slot(bool)
def prune_selected_entities(self, checked=False):
"""Prunes selected items."""
entity_ids = {x.db_map_entity_id for x in self.selected_items}
key = self._get_selected_entity_names()
self.prunned_entity_ids[key] = entity_ids
self._restore_pruned_menu.addAction(key)
self._spine_db_editor.build_graph()
@Slot(bool)
def prune_selected_classes(self, checked=False):
"""Prunes selected items."""
db_map_class_ids = {}
for x in self.selected_items:
db_map_class_ids.setdefault(x.db_map, set()).add(x.entity_class_id)
entity_ids = {
(db_map, x["id"])
for db_map, class_ids in db_map_class_ids.items()
for x in self._spine_db_editor.db_mngr.get_items(db_map, "object")
if x["class_id"] in class_ids
}
entity_ids |= {(db_map, x["id"])
for db_map, class_ids in db_map_class_ids.items()
for x in self._spine_db_editor.db_mngr.get_items(
db_map, "relationship")
if x["class_id"] in class_ids}
key = self._get_selected_class_names()
self.prunned_entity_ids[key] = entity_ids
self._restore_pruned_menu.addAction(key)
self._spine_db_editor.build_graph()
@Slot(bool)
def restore_all_pruned_items(self, checked=False):
"""Reinstates all pruned items."""
self.prunned_entity_ids.clear()
self._spine_db_editor.build_graph()
@Slot("QAction")
def restore_pruned_items(self, action):
"""Reinstates last pruned items."""
key = action.text()
if self.prunned_entity_ids.pop(key, None) is not None:
action = next(
iter(a for a in self._restore_pruned_menu.actions()
if a.text() == key))
self._restore_pruned_menu.removeAction(action)
self._spine_db_editor.build_graph()
@Slot(bool)
def select_position_parameters(self, checked=False):
dialog = SelectPositionParametersDialog(self._spine_db_editor)
dialog.show()
dialog.selection_made.connect(self._set_position_parameters)
@Slot(str, str)
def _set_position_parameters(self, parameter_pos_x, parameter_pos_y):
self.pos_x_parameter = parameter_pos_x
self.pos_y_parameter = parameter_pos_y
@Slot(bool)
def save_positions(self, checked=False):
if not self.pos_x_parameter or not self.pos_y_parameter:
msg = "You haven't selected the position parameters. Please go to Graph -> Select position parameters"
self._spine_db_editor.msg.emit(msg)
return
obj_items = [
item for item in self.selected_items
if isinstance(item, ObjectItem)
]
rel_items = [
item for item in self.selected_items
if isinstance(item, RelationshipItem)
]
db_map_class_obj_items = {}
db_map_class_rel_items = {}
for item in obj_items:
db_map_class_obj_items.setdefault(item.db_map, {}).setdefault(
item.entity_class_name, []).append(item)
for item in rel_items:
db_map_class_rel_items.setdefault(item.db_map, {}).setdefault(
item.entity_class_name, []).append(item)
db_map_data = {}
for db_map, class_obj_items in db_map_class_obj_items.items():
data = db_map_data.setdefault(db_map, {})
for class_name, obj_items in class_obj_items.items():
data["object_parameters"] = [
(class_name, self.pos_x_parameter),
(class_name, self.pos_y_parameter)
]
data["object_parameter_values"] = [
(class_name, item.entity_name, self.pos_x_parameter,
item.pos().x()) for item in obj_items
] + [(class_name, item.entity_name, self.pos_y_parameter,
item.pos().y()) for item in obj_items]
for db_map, class_rel_items in db_map_class_rel_items.items():
data = db_map_data.setdefault(db_map, {})
for class_name, rel_items in class_rel_items.items():
data["relationship_parameters"] = [
(class_name, self.pos_x_parameter),
(class_name, self.pos_y_parameter),
]
data["relationship_parameter_values"] = [
(class_name, item.object_name_list.split(","),
self.pos_x_parameter, item.pos().x())
for item in rel_items
] + [(class_name, item.object_name_list.split(","),
self.pos_y_parameter, item.pos().y())
for item in rel_items]
self._spine_db_editor.db_mngr.import_data(db_map_data)
@Slot(bool)
def clear_saved_positions(self, checked=False):
if not self.selected_items:
return
db_map_ids = {}
for item in self.selected_items:
db_map_ids.setdefault(item.db_map, set()).add(item.entity_id)
db_map_typed_data = {}
for db_map, ids in db_map_ids.items():
db_map_typed_data[db_map] = {
"parameter_value":
set(pv["id"] for parameter_name in (self.pos_x_parameter,
self.pos_y_parameter)
for pv in self._spine_db_editor.db_mngr.get_items_by_field(
db_map, "parameter_value", "parameter_name",
parameter_name) if pv["entity_id"] in ids)
}
self._spine_db_editor.db_mngr.remove_items(db_map_typed_data)
self._spine_db_editor.build_graph()
@Slot(bool)
def export_as_pdf(self, checked=False):
file_path = self._spine_db_editor.get_pdf_file_path()
if not file_path:
return
source = self._get_viewport_scene_rect()
current_zoom_factor = self.zoom_factor
self._zoom(1.0 / current_zoom_factor)
self.scene().clearSelection()
printer = QPrinter()
printer.setPaperSize(source.size(), QPrinter.Point)
printer.setOutputFileName(file_path)
painter = QPainter(printer)
self.scene().render(painter, QRectF(), source)
painter.end()
self._zoom(current_zoom_factor)
self._spine_db_editor.file_exported.emit(file_path)
def _populate_add_heat_map_menu(self):
"""Populates the menu 'Add heat map' with parameters for currently shown items in the graph."""
db_map_class_ids = {}
for item in self.entity_items:
db_map_class_ids.setdefault(item.db_map,
set()).add(item.entity_class_id)
db_map_parameters = self._spine_db_editor.db_mngr.find_cascading_parameter_data(
db_map_class_ids, "parameter_definition")
db_map_class_parameters = {}
parameter_value_ids = {}
for db_map, parameters in db_map_parameters.items():
for p in parameters:
db_map_class_parameters.setdefault(
(db_map, p["entity_class_id"]), []).append(p)
parameter_value_ids = {
(db_map, pv["parameter_id"], pv["entity_id"]): pv["id"]
for pv in self._spine_db_editor.db_mngr.
find_cascading_parameter_values_by_definition(
{db_map: {x["id"]
for x in parameters}})[db_map]
}
self._point_value_tuples_per_parameter_name.clear()
for item in self.entity_items:
for parameter in db_map_class_parameters.get(
(item.db_map, item.entity_class_id), ()):
pv_id = parameter_value_ids.get(
(item.db_map, parameter["id"], item.entity_id))
try:
value = float(
self._spine_db_editor.db_mngr.get_value(
item.db_map, "parameter_value", pv_id))
pos = item.pos()
self._point_value_tuples_per_parameter_name.setdefault(
parameter["parameter_name"], []).append(
(pos.x(), -pos.y(), value))
except (TypeError, ValueError):
pass
self._parameter_heat_map_menu.clear()
for name, point_value_tuples in self._point_value_tuples_per_parameter_name.items(
):
if len(point_value_tuples) > 1:
self._parameter_heat_map_menu.addAction(name)
self._parameter_heat_map_menu.setDisabled(
self._parameter_heat_map_menu.isEmpty())
@Slot("QAction")
def add_heat_map(self, action):
"""Adds heat map for the parameter in the action text.
"""
self._clean_up_heat_map_items()
point_value_tuples = self._point_value_tuples_per_parameter_name[
action.text()]
x, y, values = zip(*point_value_tuples)
heat_map, xv, yv, min_x, min_y, max_x, max_y = make_heat_map(
x, y, values)
heat_map_item, hm_figure = make_figure_graphics_item(self.scene(),
z=-3,
static=True)
colorbar_item, cb_figure = make_figure_graphics_item(self.scene(),
z=3,
static=False)
colormesh = hm_figure.gca().pcolormesh(xv, yv, heat_map)
cb_figure.colorbar(colormesh, fraction=1)
cb_figure.gca().set_visible(False)
width = max_x - min_x
height = max_y - min_y
heat_map_item.widget().setGeometry(min_x, min_y, width, height)
extent = self._spine_db_editor.VERTEX_EXTENT
colorbar_item.widget().setGeometry(max_x + extent, min_y, 2 * extent,
height)
self.heat_map_items += [heat_map_item, colorbar_item]
def _clean_up_heat_map_items(self):
for item in self.heat_map_items:
item.hide()
self.scene().removeItem(item)
self.heat_map_items.clear()
def set_cross_hairs_items(self, relationship_class, cross_hairs_items):
"""Sets 'cross_hairs' items for relationship creation.
Args:
relationship_class (dict)
cross_hairs_items (list(QGraphicsItems))
"""
self.relationship_class = relationship_class
self.cross_hairs_items = cross_hairs_items
for item in cross_hairs_items:
self.scene().addItem(item)
item.apply_zoom(self.zoom_factor)
cursor_pos = self.mapFromGlobal(QCursor.pos())
self._update_cross_hairs_pos(cursor_pos)
self.viewport().setCursor(Qt.BlankCursor)
def clear_cross_hairs_items(self):
self.relationship_class = None
for item in self.cross_hairs_items:
item.hide()
item.scene().removeItem(item)
self.cross_hairs_items.clear()
self.viewport().unsetCursor()
def _cross_hairs_has_valid_taget(self):
return (self._hovered_obj_item.db_map
== self.cross_hairs_items[0].db_map
and self._hovered_obj_item.entity_class_id
in self.relationship_class["object_class_ids_to_go"])
def mousePressEvent(self, event):
"""Handles relationship creation if one it's in process."""
if not self.cross_hairs_items:
super().mousePressEvent(event)
return
if event.buttons() & Qt.RightButton or not self._hovered_obj_item:
self.clear_cross_hairs_items()
return
if self._cross_hairs_has_valid_taget():
self.relationship_class["object_class_ids_to_go"].remove(
self._hovered_obj_item.entity_class_id)
if self.relationship_class["object_class_ids_to_go"]:
# Add hovered as member and keep going, we're not done yet
ch_rel_item = self.cross_hairs_items[1]
ch_arc_item = CrossHairsArcItem(
ch_rel_item, self._hovered_obj_item,
self._spine_db_editor._ARC_WIDTH)
ch_rel_item.refresh_icon()
self.scene().addItem(ch_arc_item)
ch_arc_item.apply_zoom(self.zoom_factor)
self.cross_hairs_items.append(ch_arc_item)
return
# Here we're done, add the relationships between the hovered and the members
ch_item, _, *ch_arc_items = self.cross_hairs_items
obj_items = [arc_item.obj_item for arc_item in ch_arc_items]
obj_items.remove(ch_item)
self._spine_db_editor.finalize_relationship(
self.relationship_class, self._hovered_obj_item, *obj_items)
self.clear_cross_hairs_items()
def mouseMoveEvent(self, event):
"""Updates the hovered object item if we're in relationship creation mode."""
if self.cross_hairs_items:
self._update_cross_hairs_pos(event.pos())
return
super().mouseMoveEvent(event)
if not self.itemAt(
event.pos()) and (event.buttons() & Qt.LeftButton != 0):
if self._previous_mouse_pos is not None:
delta = event.pos() - self._previous_mouse_pos
self._scroll_scene_by(delta.x(), delta.y())
self._previous_mouse_pos = event.pos()
def _update_cross_hairs_pos(self, pos):
"""Updates the hovered object item and sets the 'cross_hairs' icon accordingly.
Args:
pos (QPoint): the desired position in view coordinates
"""
cross_hairs_item = self.cross_hairs_items[0]
scene_pos = self.mapToScene(pos)
delta = scene_pos - cross_hairs_item.scenePos()
cross_hairs_item.block_move_by(delta.x(), delta.y())
self._hovered_obj_item = None
obj_items = [
item for item in self.items(pos) if isinstance(item, ObjectItem)
]
self._hovered_obj_item = next(iter(obj_items), None)
if self._hovered_obj_item is not None:
if self._cross_hairs_has_valid_taget():
if len(self.relationship_class["object_class_ids_to_go"]) == 1:
self.cross_hairs_items[0].set_check_icon()
else:
self.cross_hairs_items[0].set_plus_icon()
return
self.cross_hairs_items[0].set_ban_icon()
return
self.cross_hairs_items[0].set_normal_icon()
def mouseReleaseEvent(self, event):
if not self.cross_hairs_items:
super().mouseReleaseEvent(event)
def _scroll_scene_by(self, dx, dy):
if dx == dy == 0:
return
scene_rect = self.sceneRect()
view_scene_rect = self.mapFromScene(scene_rect).boundingRect()
view_rect = self.viewport().rect()
scene_dx = abs((self.mapToScene(0, 0) - self.mapToScene(dx, 0)).x())
scene_dy = abs((self.mapToScene(0, 0) - self.mapToScene(0, dy)).y())
if dx < 0 and view_rect.right() - dx >= view_scene_rect.right():
scene_rect.adjust(0, 0, scene_dx, 0)
elif dx > 0 and view_rect.left() - dx <= view_scene_rect.left():
scene_rect.adjust(-scene_dx, 0, 0, 0)
if dy < 0 and view_rect.bottom() - dy >= view_scene_rect.bottom():
scene_rect.adjust(0, 0, 0, scene_dy)
elif dy > 0 and view_rect.top() - dy <= view_scene_rect.top():
scene_rect.adjust(0, -scene_dy, 0, 0)
self.scene().setSceneRect(scene_rect)
def keyPressEvent(self, event):
"""Aborts relationship creation if user presses ESC."""
super().keyPressEvent(event)
if event.key() == Qt.Key_Escape and self.cross_hairs_items:
self._spine_db_editor.msg.emit("Relationship creation aborted.")
self.clear_cross_hairs_items()
def contextMenuEvent(self, e):
"""Shows context menu.
Args:
e (QContextMenuEvent): Context menu event
"""
super().contextMenuEvent(e)
if e.isAccepted():
return
e.accept()
self._context_menu_pos = self.mapToScene(e.pos())
self._menu.exec_(e.globalPos())
def _compute_max_zoom(self):
return sys.maxsize
def _use_smooth_zoom(self):
return self._qsettings.value("appSettings/smoothEntityGraphZoom",
defaultValue="false") == "true"
def _zoom(self, factor):
self.scale(factor, factor)
self.apply_zoom()
def apply_zoom(self):
for item in self.items():
if hasattr(item, "apply_zoom"):
item.apply_zoom(self.zoom_factor)
def wheelEvent(self, event):
"""Zooms in/out. If user has pressed the shift key, rotates instead.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.modifiers() != Qt.ShiftModifier:
super().wheelEvent(event)
return
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
smooth_rotation = self._qsettings.value(
"appSettings/smoothEntityGraphRotation", defaultValue="false")
if smooth_rotation == "true":
num_degrees = event.delta() / 8
num_steps = num_degrees / 15
self._scheduled_transformations += num_steps
if self._scheduled_transformations * num_steps < 0:
self._scheduled_transformations = num_steps
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.setUpdateInterval(20)
self.time_line.valueChanged.connect(
self._handle_rotation_time_line_advanced)
self.time_line.finished.connect(
self._handle_transformation_time_line_finished)
self.time_line.start()
else:
angle = event.angleDelta().y() / 8
self._rotate(angle)
self._set_preferred_scene_rect()
def _handle_rotation_time_line_advanced(self, pos):
"""Performs rotation whenever the smooth rotation time line advances."""
angle = self._scheduled_transformations / 2.0
self._rotate(angle)
def _rotate(self, angle):
center = self._get_viewport_scene_rect().center()
for item in self.items():
if hasattr(item, "apply_rotation"):
item.apply_rotation(angle, center)
def rotate_clockwise(self):
"""Performs a rotate clockwise with fixed angle."""
self._rotate(-self._angle / 8)
self._set_preferred_scene_rect()
def rotate_anticlockwise(self):
"""Performs a rotate anticlockwise with fixed angle."""
self._rotate(self._angle / 8)
self._set_preferred_scene_rect()
def setUp(self):
UsesQCoreApplication.setUp(self)
self.called = False
self.timeline = QTimeLine(100)
class CustomQGraphicsView(QGraphicsView):
"""Super class for Design and Entity QGraphicsViews.
Attributes:
parent (QWidget): Parent widget
"""
def __init__(self, parent):
"""Init CustomQGraphicsView."""
super().__init__(parent=parent)
self._zoom_factor_base = 1.0015
self._angle = 120
self._scheduled_transformations = 0
self.time_line = None
self._items_fitting_zoom = 1.0
self._max_zoom = 10.0
self._min_zoom = 0.1
self._qsettings = QSettings("SpineProject", "Spine Toolbox")
@property
def zoom_factor(self):
return self.transform().m11(
) # The [1, 1] element contains the x scaling factor
def reset_zoom(self):
"""Resets zoom to the default factor."""
self.scene().center_items()
self._update_zoom_limits()
self._zoom(self._items_fitting_zoom)
def keyPressEvent(self, event):
"""Overridden method. Enable zooming with plus and minus keys (comma resets zoom).
Send event downstream to QGraphicsItems if pressed key is not handled here.
Args:
event (QKeyEvent): Pressed key
"""
if event.key() == Qt.Key_Plus:
self.zoom_in()
elif event.key() == Qt.Key_Minus:
self.zoom_out()
elif event.key() == Qt.Key_Comma:
self.reset_zoom()
else:
super().keyPressEvent(event)
def mousePressEvent(self, event):
"""Set rubber band selection mode if Control pressed.
Enable resetting the zoom factor from the middle mouse button.
"""
item = self.itemAt(event.pos())
if not item or not item.acceptedMouseButtons() & event.buttons():
if event.modifiers() & Qt.ControlModifier:
self.setDragMode(QGraphicsView.RubberBandDrag)
self.viewport().setCursor(Qt.CrossCursor)
if event.button() == Qt.MidButton:
self.reset_zoom()
super().mousePressEvent(event)
def mouseReleaseEvent(self, event):
"""Reestablish scroll hand drag mode."""
super().mouseReleaseEvent(event)
item = next(
iter([x for x in self.items(event.pos()) if x.hasCursor()]), None)
was_not_rubber_band_drag = self.dragMode(
) != QGraphicsView.RubberBandDrag
self.setDragMode(QGraphicsView.ScrollHandDrag)
if item and was_not_rubber_band_drag:
self.viewport().setCursor(item.cursor())
else:
self.viewport().setCursor(Qt.ArrowCursor)
def _use_smooth_zoom(self):
return self._qsettings.value("appSettings/smoothZoom",
defaultValue="false") == "true"
def wheelEvent(self, event):
"""Zooms in/out.
Args:
event (QWheelEvent): Mouse wheel event
"""
if event.orientation() != Qt.Vertical:
event.ignore()
return
event.accept()
if self._use_smooth_zoom():
angle = event.delta() / 8
steps = angle / 15
self._scheduled_transformations += steps
if self._scheduled_transformations * steps < 0:
self._scheduled_transformations = steps
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.setUpdateInterval(20)
self.time_line.valueChanged.connect(lambda x, pos=event.pos(
): self._handle_zoom_time_line_advanced(pos))
self.time_line.finished.connect(
self._handle_transformation_time_line_finished)
self.time_line.start()
else:
angle = event.angleDelta().y()
factor = self._zoom_factor_base**angle
self.gentle_zoom(factor, event.pos())
self._set_preferred_scene_rect()
def resizeEvent(self, event):
"""
Updates zoom if needed when the view is resized.
Args:
event (QResizeEvent): a resize event
"""
new_size = self.size()
old_size = event.oldSize()
if new_size != old_size:
scene = self.scene()
if scene is not None:
self._update_zoom_limits()
if self.time_line:
self.time_line.deleteLater()
self.time_line = QTimeLine(200, self)
self.time_line.finished.connect(
self._handle_resize_time_line_finished)
self.time_line.start()
super().resizeEvent(event)
def setScene(self, scene):
"""
Sets a new scene to this view.
Args:
scene (ShrinkingScene): a new scene
"""
super().setScene(scene)
scene.item_move_finished.connect(self._handle_item_move_finished)
scene.item_removed.connect(
lambda _item: self._set_preferred_scene_rect())
self.viewport().setCursor(Qt.ArrowCursor)
@Slot("QGraphicsItem")
def _handle_item_move_finished(self, item):
self._ensure_item_visible(item)
self._update_zoom_limits()
def _update_zoom_limits(self):
"""
Updates the minimum zoom limit and the zoom level with which the view fits all the items in the scene.
"""
rect = self.scene().itemsBoundingRect()
if rect.isEmpty():
return
viewport_scene_rect = self._get_viewport_scene_rect()
x_factor = viewport_scene_rect.width() / rect.width()
y_factor = viewport_scene_rect.height() / rect.height()
self._items_fitting_zoom = 0.9 * min(x_factor, y_factor)
self._min_zoom = self._compute_min_zoom()
self._max_zoom = 10 * self._min_zoom
def _compute_min_zoom(self):
return min(0.5, self.zoom_factor * self._items_fitting_zoom)
def _handle_zoom_time_line_advanced(self, pos):
"""Performs zoom whenever the smooth zoom time line advances."""
factor = 1.0 + self._scheduled_transformations / 100.0
self.gentle_zoom(factor, pos)
@Slot()
def _handle_transformation_time_line_finished(self):
"""Cleans up after the smooth transformation time line finishes."""
if self._scheduled_transformations > 0:
self._scheduled_transformations -= 1
else:
self._scheduled_transformations += 1
if self.sender():
self.sender().deleteLater()
self.time_line = None
self._set_preferred_scene_rect()
@Slot()
def _handle_resize_time_line_finished(self):
"""Cleans up after resizing time line finishes."""
if self.sender():
self.sender().deleteLater()
self.time_line = None
self._set_preferred_scene_rect()
def zoom_in(self):
"""Perform a zoom in with a fixed scaling."""
self.gentle_zoom(self._zoom_factor_base**self._angle)
self._set_preferred_scene_rect()
def zoom_out(self):
"""Perform a zoom out with a fixed scaling."""
self.gentle_zoom(self._zoom_factor_base**-self._angle)
self._set_preferred_scene_rect()
def gentle_zoom(self, factor, zoom_focus=None):
"""
Perform a zoom by a given factor.
Args:
factor (float): a scaling factor relative to the current scene scaling
zoom_focus (QPoint): focus of the zoom, e.g. mouse pointer position
"""
if zoom_focus is None:
zoom_focus = self.viewport().rect().center()
initial_focus_on_scene = self.mapToScene(zoom_focus)
current_zoom = self.zoom_factor
proposed_zoom = current_zoom * factor
if proposed_zoom < self._min_zoom:
factor = self._min_zoom / current_zoom
elif proposed_zoom > self._max_zoom:
factor = self._max_zoom / current_zoom
if math.isclose(factor, 1.0):
return
self._zoom(factor)
post_scaling_focus_on_scene = self.mapToScene(zoom_focus)
center_on_scene = self.mapToScene(self.viewport().rect().center())
focus_diff = post_scaling_focus_on_scene - initial_focus_on_scene
self.centerOn(center_on_scene - focus_diff)
def _zoom(self, factor):
self.scale(factor, factor)
def _get_viewport_scene_rect(self):
"""Returns the viewport rect mapped to the scene.
Returns:
QRectF
"""
rect = self.viewport().rect()
top_left = self.mapToScene(rect.topLeft())
bottom_right = self.mapToScene(rect.bottomRight())
return QRectF(top_left, bottom_right)
def _ensure_item_visible(self, item):
"""Resets zoom if item is not visible."""
# Because of zooming, we need to find the item scene's rect as below
item_scene_rect = item.boundingRegion(
item.sceneTransform()).boundingRect()
viewport_scene_rect = self._get_viewport_scene_rect()
if not viewport_scene_rect.contains(item_scene_rect.topLeft()):
scene_rect = viewport_scene_rect.united(item_scene_rect)
self.fitInView(scene_rect, Qt.KeepAspectRatio)
self._set_preferred_scene_rect()
@Slot()
def _set_preferred_scene_rect(self):
"""Sets the scene rect to the result of uniting the scene viewport rect and the items bounding rect.
"""
viewport_scene_rect = self._get_viewport_scene_rect()
items_scene_rect = self.scene().itemsBoundingRect()
self.scene().setSceneRect(viewport_scene_rect.united(items_scene_rect))
