def keyPressEvent(self, keyEvent):
key = keyEvent.key()
if key == Qt.Key_Escape:
self.showNormal()
elif key == Qt.Key_F11:
self.showFullScreen()
elif key == Qt.Key_A:
self.zoom(FACTEUR_ZOOM_FIN)
elif key == Qt.Key_Q:
self.zoom(-FACTEUR_ZOOM_FIN)
elif key == Qt.Key_F1:
self.panneauInfo.setVisible(not self.panneauInfo.isVisible())
if self.panneauInfo.isVisible():
self.scene().changed.connect(self.panneauInfo.sceneChanged)
else:
self.scene().changed.disconnect(self.panneauInfo.sceneChanged)
elif keyEvent.modifiers() == Qt.ControlModifier \
and key == Qt.Key_P:
(nomFichier, filtre) = QFileDialog.getSaveFileName(
self,
"Sauvegarder image",
filter="PNG (*.png);;JPEG (*.jpg);;BMP (*.bmp)")
if nomFichier:
pixmap = self.grab()
pixmap.save(nomFichier)
else:
QGraphicsView.keyPressEvent(self, keyEvent)
def keyPressEvent(self, event):
"""
Handle key presses for mouse-drag transforms and arrow-key panning.
"""
if not self._has_focus: # we don't have focus -> ignore keypress
return
if event.key() == self._key_mod:
self._transform_enable = True
QGraphicsView.keyPressEvent(self, event)
elif event.key() == Qt.Key_Left:
transform = self.scene_root_item.transform()
transform.translate(self.keyPanDeltaX(), 0)
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Up:
transform = self.scene_root_item.transform()
transform.translate(0, self.keyPanDeltaY())
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Right:
transform = self.scene_root_item.transform()
transform.translate(-self.keyPanDeltaX(), 0)
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Down:
transform = self.scene_root_item.transform()
transform.translate(0, -self.keyPanDeltaY())
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Plus:
self.zoomIn(0.3)
elif event.key() == Qt.Key_Minus:
self.zoomIn(0.03)
else:
return QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
"""
Handle key presses for mouse-drag transforms and arrow-key panning.
"""
if not self._has_focus: # we don't have focus -> ignore keypress
return
if event.key() == self._key_mod:
self._transform_enable = True
QGraphicsView.keyPressEvent(self, event)
elif event.key() == Qt.Key_Left:
transform = self.scene_root_item.transform()
transform.translate(self.keyPanDeltaX(), 0)
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Up:
transform = self.scene_root_item.transform()
transform.translate(0, self.keyPanDeltaY())
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Right:
transform = self.scene_root_item.transform()
transform.translate(-self.keyPanDeltaX(), 0)
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Down:
transform = self.scene_root_item.transform()
transform.translate(0, -self.keyPanDeltaY())
self.scene_root_item.setTransform(transform)
elif event.key() == Qt.Key_Plus:
self.zoomIn(0.3)
elif event.key() == Qt.Key_Minus:
self.zoomIn(0.03)
else:
if hasattr(self.scene_root_item, KEY_PRESS_EVENT):
getattr(self.scene_root_item, KEY_PRESS_EVENT)(event)
def inputGraphicsViewKeyPressEvent(self,event):
mousePosition = QCursor().pos()
mousePosition = self.inputGraphicsView.mapFromGlobal(mousePosition)
if event.type() == QtCore.QEvent.KeyPress:
key = event.key()
if key == QtCore.Qt.Key_Space:
self.videoPlaybackWidget.playButtonClicked()
elif key == QtCore.Qt.Key_A:
self.videoPlaybackWidget.movePrevButtonClicked()
elif key == QtCore.Qt.Key_D:
self.videoPlaybackWidget.moveNextButtonClicked()
elif key == QtCore.Qt.Key_Down:
self.inputGraphicsViewScaleDown()
elif key == QtCore.Qt.Key_Up:
self.inputGraphicsViewScaleUp()
pass
elif key == QtCore.Qt.Key_R:
self.graphicsViewResized()
elif key == QtCore.Qt.Key_P:
pass
#self.handInputSystem.nextDataFrame()
elif key == QtCore.Qt.Key_O:
pass
#self.handInputSystem.previousDataFrame()
elif key == QtCore.Qt.Key_J:
frameNo = self.handInputSystem.getLastInputedFrameIndex()
self.videoPlaybackWidget.moveToFrame(frameNo)
elif key == QtCore.Qt.Key_S:
self.handInputSystem.saveCSV("./a.csv")
QGraphicsView.keyPressEvent(self.inputGraphicsView, event)
def inputGraphicsViewKeyPressEvent(self, event):
mousePosition = QCursor().pos()
mousePosition = self.inputGraphicsView.mapFromGlobal(mousePosition)
if event.type() == QtCore.QEvent.KeyPress:
key = event.key()
if key == QtCore.Qt.Key_Space:
self.videoPlaybackWidget.playButtonClicked()
elif key == QtCore.Qt.Key_A:
self.videoPlaybackWidget.movePrevButtonClicked()
elif key == QtCore.Qt.Key_D:
self.videoPlaybackWidget.moveNextButtonClicked()
elif key == QtCore.Qt.Key_Down:
self.inputGraphicsViewScaleDown()
elif key == QtCore.Qt.Key_Up:
self.inputGraphicsViewScaleUp()
pass
elif key == QtCore.Qt.Key_R:
self.graphicsViewResized()
elif key == QtCore.Qt.Key_P:
pass
#self.handInputSystem.nextDataFrame()
elif key == QtCore.Qt.Key_O:
pass
#self.handInputSystem.previousDataFrame()
elif key == QtCore.Qt.Key_J:
frameNo = self.handInputSystem.getLastInputedFrameIndex()
self.videoPlaybackWidget.moveToFrame(frameNo)
elif key == QtCore.Qt.Key_S:
self.handInputSystem.saveCSV("./a.csv")
QGraphicsView.keyPressEvent(self.inputGraphicsView, event)
def graphics_view_on_key_press(self, event):
key = event.key()
if key in (Qt.Key_Left, Qt.Key_Right, Qt.Key_Up, Qt.Key_Down,
Qt.Key_PageUp, Qt.Key_PageDown):
# This causes the graphics view to ignore these keys so they can be caught by the bag_widget keyPressEvent
event.ignore()
else:
# Maintains functionality for all other keys QGraphicsView implements
QGraphicsView.keyPressEvent(self.graphics_view, event)
def keyReleaseEvent(self, event):
if self.hasImage():
if event.key(
) == Qt.Key_Control and not self.global_erase_override:
self._deleteCrossHandles[0].hide()
self._deleteCrossHandles[1].hide()
# Show the overlay again
if event.key() == Qt.Key_H:
self._overlayHandle.show()
QGraphicsView.keyPressEvent(self, event)
class MyMainWindow(QMainWindow):
# call constructor of MyMainWindow
def __init__(self, parent=None):
# call constructor of QMainWindow
super(MyMainWindow, self).__init__(parent)
w = 1000
h = 800
self.scene = QGraphicsScene(-w/2, -h/2, w, h)
self.view = QGraphicsView()
# set QGraphicsView attributes
# self.view.setViewport(QOpenGLWidget())
self.view.setRenderHints(QtGui.QPainter.Antialiasing |
QPainter.HighQualityAntialiasing)
self.view.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)
self.view.setScene(self.scene)
# set central widget for the application
self.setCentralWidget(self.view)
# add items to the scene
self.addGraphicsItem((0, 0, 250, 250), 8.0, (255, 0, 0), (0, 0, 255), 'My first item')
self.addGraphicsItem((-250, -250, 300, 200), 4.0, (0, 0, 0), (255, 0, 100), 'My 2nd item')
self.addGraphicsItem((200, -200, 200, 200), 10.0, (0, 0, 255), (0, 255, 100), 'My 3rd item')
def addGraphicsItem(self, rect, pw, pc, bc, tooltip):
pen = QtGui.QPen(QtCore.Qt.SolidLine)
pen.setColor(QtGui.QColor(pc[0], pc[1], pc[2], 255))
pen.setWidth(pw)
brush = QtGui.QBrush(QtGui.QColor(bc[0], bc[1], bc[2], 255))
item = GraphicsItem(rect, pen, brush, tooltip)
self.scene.addItem(item)
def mousePressEvent(self, event):
#print 'from MainWindow'
pass
def keyPressEvent(self, event: QtGui.QKeyEvent):
key = event.key()
if key == QtCore.Qt.Key_Escape:
sys.exit(QApplication.quit())
else:
self.view.keyPressEvent(event)
def keyPressEvent(self, event):
QGraphicsView.keyPressEvent(self, event)
if event.key() == Qt.Key_Home or\
event.key() == Qt.Key_H:
self.fitWindow()
elif event.key() == Qt.Key_W or\
event.key() == Qt.Key_Space:
if self.wabbox is None:
self.fitWindow()
else:
b = self.wabbox
self.fitWindow(QRectF(b.x0, b.y0, b.dx, b.dy))
elif event.key() == Qt.Key_Plus:
self.scaleCheck(1.25)
elif event.key() == Qt.Key_Minus:
self.scaleCheck(0.8)
elif event.key() == Qt.Key_Slash:
self.rotate(22.5)
self.fixWindow()
elif event.key() == Qt.Key_Backslash:
self.rotate(-22.5)
self.fixWindow()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Control:
self.fCtrlDown = True
QGraphicsView.keyPressEvent(self, event)
def keyReleaseEvent(self, event):
# Disable drag mode when control button released
if event.key() == Qt.Key_Control:
self.setDragMode(self.NoDrag)
return QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
# Enable drag mode while control button is being held down
if event.modifiers() == Qt.ControlModifier:
self.setDragMode(self.ScrollHandDrag)
return QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
if event.key() == Qt.Key_F:
self.fitSelected()
#elif event.key() == Qt.Key_Delete:
# self.deleteSelected()
return QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
if event.key() == Qt.Key_Control:
self.fCtrlDown = True
QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
# Enable drag mode while control button is being held down
if event.modifiers() == Qt.ControlModifier:
self.setDragMode(self.ScrollHandDrag)
QGraphicsView.keyPressEvent(self, event)
def keyReleaseEvent(self, event):
# Disable drag mode when control button released
if event.key() == Qt.Key_Control:
self.setDragMode(self.NoDrag)
QGraphicsView.keyPressEvent(self, event)
def keyPressEvent(self, event):
if self.hasImage():
# Zoom in
if event.key() == Qt.Key_Plus:
viewBBox = self.zoomStack[-1] if len(
self.zoomStack) else self.sceneRect()
wh12 = int(
max(viewBBox.width(), viewBBox.height()) /
self.zoom_in_modifier)
x, y = self._lastCursorCoords
selectionBBox = QRectF(x - wh12, y - wh12, 2 * wh12,
2 * wh12).intersected(viewBBox)
if selectionBBox.isValid() and (selectionBBox != viewBBox):
self.zoomStack.append(selectionBBox)
self.updateViewer()
# Zoom out
if event.key() == Qt.Key_Minus:
if self.canZoom:
viewBBox = self.zoomStack[-1] if len(
self.zoomStack) else False
if viewBBox:
self.zoomStack = self.zoomStack[:-1]
self.updateViewer()
# Fill mask region
if event.key() == Qt.Key_F:
try:
self.viewport().setCursor(Qt.BusyCursor)
self.fillArea()
except Exception as e:
print("Cannot fill region. Additional information:")
print(e)
self.viewport().setCursor(Qt.ArrowCursor)
# Erase closed contour under cursor with current paint color
if event.key() == Qt.Key_X:
if QApplication.keyboardModifiers() & Qt.ControlModifier:
try:
self.viewport().setCursor(Qt.BusyCursor)
self.fillArea(remove_closed_contour=True)
except Exception as e:
print(
"Cannot remove the contour. Additional information:"
)
print(e)
self.viewport().setCursor(Qt.ArrowCursor)
# Erase closed contour under cursor and any connected contour regardless of color
if event.key() == Qt.Key_Q:
if QApplication.keyboardModifiers() & Qt.ControlModifier:
try:
self.viewport().setCursor(Qt.BusyCursor)
self.fillArea(remove_closed_contour=True,
remove_only_current_color=False)
except Exception as e:
print(
"Cannot remove the contour. Additional information:"
)
print(e)
self.viewport().setCursor(Qt.ArrowCursor)
# Erase mode enable/disable
if event.key() == Qt.Key_D:
self.global_erase_override = not self.global_erase_override
if self.global_erase_override:
self.current_painting_mode = self.MODE_ERASE
self._deleteCrossHandles[0].show()
self._deleteCrossHandles[1].show()
else:
self.current_painting_mode = self.MODE_PAINT
self._deleteCrossHandles[0].hide()
self._deleteCrossHandles[1].hide()
# Temporarily hide the overlay
if event.key() == Qt.Key_H:
self._overlayHandle.hide()
# Toggle helper on and off
if event.key() == Qt.Key_T:
if self._auxHelper is not None:
if self.showHelper:
self._auxHelper.hide()
self.showHelper = False
else:
self._auxHelper.show()
self.showHelper = True
# Undo operations
if event.key() == Qt.Key_Z:
if QApplication.keyboardModifiers() & Qt.ControlModifier:
if (len(self._overlay_stack) > 0):
self.mask_pixmap = self._overlay_stack.pop()
self._overlayHandle.setPixmap(self.mask_pixmap)
if self.direct_mask_paint:
if len(self._offscreen_mask_stack) > 0:
self._offscreen_mask = self._offscreen_mask_stack.pop(
)
# When CONTROL is pressed, show the delete cross
if event.key(
) == Qt.Key_Control and not self.global_erase_override:
self._deleteCrossHandles[0].show()
self._deleteCrossHandles[1].show()
QGraphicsView.keyPressEvent(self, event)