Mercurial Repositories > eric / file comparison
comparison: Graphics/UMLGraphicsView.py
Graphics/UMLGraphicsView.py
- changeset 1518
- e6e21910210d
- parent 1509
- c0b5e693b0eb
- child 1588
- dccffd13be8d
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| 1516:7c0b621e537d | 1518:e6e21910210d |
|---|---|
| 5 | 5 |
| 6 """ | 6 """ |
| 7 Module implementing a subclass of E5GraphicsView for our diagrams. | 7 Module implementing a subclass of E5GraphicsView for our diagrams. |
| 8 """ | 8 """ |
| 9 | 9 |
| 10 from PyQt4.QtCore import pyqtSignal, Qt, QSignalMapper, QFileInfo | 10 from PyQt4.QtCore import pyqtSignal, Qt, QSignalMapper, QFileInfo, QEvent |
| 11 from PyQt4.QtGui import QAction, QToolBar, QDialog, QPrinter, QPrintDialog | 11 from PyQt4.QtGui import QAction, QToolBar, QDialog, QPrinter, QPrintDialog |
| 12 | 12 |
| 13 from E5Graphics.E5GraphicsView import E5GraphicsView | 13 from E5Graphics.E5GraphicsView import E5GraphicsView |
| 14 | 14 |
| 15 from E5Gui import E5MessageBox, E5FileDialog | 15 from E5Gui import E5MessageBox, E5FileDialog |
| 52 self.deltaSize = 100.0 | 52 self.deltaSize = 100.0 |
| 53 | 53 |
| 54 self.__initActions() | 54 self.__initActions() |
| 55 | 55 |
| 56 scene.changed.connect(self.__sceneChanged) | 56 scene.changed.connect(self.__sceneChanged) |
| 57 | |
| 58 self.grabGesture(Qt.PinchGesture) | |
| 57 | 59 |
| 58 def __initActions(self): | 60 def __initActions(self): |
| 59 """ | 61 """ |
| 60 Private method to initialize the view actions. | 62 Private method to initialize the view actions. |
| 61 """ | 63 """ |
| 516 self.zoomIn() | 518 self.zoomIn() |
| 517 evt.accept() | 519 evt.accept() |
| 518 return | 520 return |
| 519 | 521 |
| 520 super().wheelEvent(evt) | 522 super().wheelEvent(evt) |
| 523 | |
| 524 def event(self, evt): | |
| 525 """ | |
| 526 Protected method handling events. | |
| 527 | |
| 528 @param evt reference to the event (QEvent) | |
| 529 @return flag indicating, if the event was handled (boolean) | |
| 530 """ | |
| 531 if evt.type() == QEvent.Gesture: | |
| 532 self.gestureEvent(evt) | |
| 533 return True | |
| 534 | |
| 535 return super().event(evt) | |
| 536 | |
| 537 def gestureEvent(self, evt): | |
| 538 """ | |
| 539 Protected method handling gesture events. | |
| 540 | |
| 541 @param evt reference to the gesture event (QGestureEvent | |
| 542 """ | |
| 543 pinch = evt.gesture(Qt.PinchGesture) | |
| 544 if pinch: | |
| 545 if pinch.state() == Qt.GestureStarted: | |
| 546 pinch.setScaleFactor(self.zoom()) | |
| 547 else: | |
| 548 self.setZoom(pinch.scaleFactor()) | |
| 549 evt.accept() |
