diff options
Diffstat (limited to 'src/main/python/utils/graphics.py')
| -rw-r--r-- | src/main/python/utils/graphics.py | 67 |
1 files changed, 53 insertions, 14 deletions
diff --git a/src/main/python/utils/graphics.py b/src/main/python/utils/graphics.py index 5d8037d..f80c653 100644 --- a/src/main/python/utils/graphics.py +++ b/src/main/python/utils/graphics.py @@ -76,7 +76,7 @@ class CustomView(QGraphicsView): temp = self.zoom self._zoom = value self.scale(self.zoom / temp, self.zoom / temp) - + class CustomScene(QGraphicsScene): """ Extends QGraphicsScene with undo-redo functionality @@ -96,12 +96,12 @@ class CustomScene(QGraphicsScene): self.deleteAction = QAction("Delete Item", self) self.deleteAction.setShortcut(Qt.Key_Delete) self.deleteAction.triggered.connect(self.deleteItem) - + self.undoAction = self.undoStack.createUndoAction(self, "Undo") self.undoAction.setShortcut(QKeySequence.Undo) self.redoAction = self.undoStack.createRedoAction(self, "Redo") self.redoAction.setShortcut(QKeySequence.Redo) - + def createUndoView(self, parent): # creates an undo stack view for current QGraphicsScene undoView = QUndoView(self.undoStack, parent) @@ -120,12 +120,12 @@ class CustomScene(QGraphicsScene): self.count+=1 self.undoStack.push(deleteCommand(j, self)) self.undoStack.push(deleteCommand(itemToDelete, self)) - + def itemMoved(self, movedItem, lastPos): #item move event, checks if item is moved self.undoStack.push(moveCommand(movedItem, lastPos)) self.advance() - + def addItemPlus(self, item): # extended add item method, so that a corresponding undo action is also pushed self.undoStack.push(addCommand(item, self)) @@ -152,16 +152,16 @@ class CustomScene(QGraphicsScene): return super(CustomScene, self).mousePressEvent(event) -def mouseReleaseEvent(self, event): - if event.button() == QtCore.Qt.LeftButton: - for item in self.movingItems: - if self.oldPositions[item] != item.pos(): - # Item position has changed, invoke the callback function - self.itemMovedCallback(item, self.oldPositions[item]) - self.movingItems.clear() # Clear the moving items list - self.oldPositions.clear() # Clear the old positions dictionary + def mouseReleaseEvent(self, event): + if event.button() == QtCore.Qt.LeftButton: + for item in self.movingItems: + if self.oldPositions[item] != item.pos(): + # Item position has changed, invoke the callback function + self.itemMovedCallback(item, self.oldPositions[item]) + self.movingItems.clear() # Clear the moving items list + self.oldPositions.clear() # Clear the old positions dictionary - return super(CustomScene, self).mouseReleaseEvent(event) + return super(CustomScene, self).mouseReleaseEvent(event) def mouseMoveEvent(self, mouseEvent): @@ -177,6 +177,43 @@ def mouseReleaseEvent(self, event): return super(CustomScene, self).mouseMoveEvent(mouseEvent) + # The above is the mouse events for moving multiple images at once. + + """def mousePressEvent(self, event): + bdsp = event.buttonDownScenePos(Qt.LeftButton) # get click pos + point = QPointF(bdsp.x(), bdsp.y()) # create a QPointF from click pos + itemList = self.items(point) # get items at said point + if event.button() == Qt.LeftButton: + if itemList: + self.movingItems = itemList + self.initialPositions = {} + for item in self.movingItems: + self.initialPositions[item] = item.pos() + else: + self.movingItems = [] + self.clearSelection() + return super(CustomScene, self).mousePressEvent(event) + + def mouseMoveEvent(self, event): + if event.buttons() == Qt.LeftButton and self.movingItems: + modifiers = QApplication.keyboardModifiers() + if modifiers == Qt.ControlModifier: + for item in self.movingItems: + item.setPos(item.pos() + event.scenePos() - event.lastScenePos()) + else: + super(CustomScene, self).mouseMoveEvent(event) + + def mouseReleaseEvent(self, event): + if event.button() == Qt.LeftButton and self.movingItems: + for item in self.movingItems: + if item.pos() != self.initialPositions[item]: + self.itemMoved(item, self.initialPositions[item]) + self.movingItems = [] + self.initialPositions = {} + return super(CustomScene, self).mouseReleaseEvent(event)""" + + # The above mouse events are for moving items on top of each other. + """def mousePressEvent(self, event): # overloaded mouse press event to check if an item was moved bdsp = event.buttonDownScenePos(Qt.LeftButton) #get click pos @@ -204,6 +241,8 @@ def mouseReleaseEvent(self, event): item.parentItem().showLineGripItem() super(CustomScene,self).mouseMoveEvent(mouseEvent)""" + # The above is the original mouse events + def reInsertLines(self): currentIndex = self.undoStack.index() i = 2 |