Mercurial Repositories > eric / file comparison
comparison: eric6/Graphics/PixmapDiagram.py
eric6/Graphics/PixmapDiagram.py
- changeset 8289
- 871b40c5a77a
- parent 8218
- 7c09585bd960
- child 8298
- 83ddb87b3bc1
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| 8288:809d5d5ac2ba | 8289:871b40c5a77a |
|---|---|
| 38 | 38 |
| 39 def __init__(self, pixmap, parent=None, name=None): | 39 def __init__(self, pixmap, parent=None, name=None): |
| 40 """ | 40 """ |
| 41 Constructor | 41 Constructor |
| 42 | 42 |
| 43 @param pixmap filename of a graphics file to show (string) | 43 @param pixmap filename of a graphics file to show |
| 44 @param parent parent widget of the view (QWidget) | 44 @type str |
| 45 @param name name of the view widget (string) | 45 @param parent parent widget of the view |
| 46 @type QWidget | |
| 47 @param name name of the view widget | |
| 48 @type str | |
| 46 """ | 49 """ |
| 47 super().__init__(parent) | 50 super().__init__(parent) |
| 48 if name: | 51 if name: |
| 49 self.setObjectName(name) | 52 self.setObjectName(name) |
| 50 else: | 53 else: |
| 120 | 123 |
| 121 def __showContextMenu(self, coord): | 124 def __showContextMenu(self, coord): |
| 122 """ | 125 """ |
| 123 Private slot to show the context menu of the listview. | 126 Private slot to show the context menu of the listview. |
| 124 | 127 |
| 125 @param coord the position of the mouse pointer (QPoint) | 128 @param coord the position of the mouse pointer |
| 129 @type QPoint | |
| 126 """ | 130 """ |
| 127 self.__menu.popup(self.mapToGlobal(coord)) | 131 self.__menu.popup(self.mapToGlobal(coord)) |
| 128 | 132 |
| 129 def __initToolBars(self): | 133 def __initToolBars(self): |
| 130 """ | 134 """ |
| 144 | 148 |
| 145 def __showPixmap(self, filename): | 149 def __showPixmap(self, filename): |
| 146 """ | 150 """ |
| 147 Private method to show a file. | 151 Private method to show a file. |
| 148 | 152 |
| 149 @param filename name of the file to be shown (string) | 153 @param filename name of the file to be shown |
| 150 @return flag indicating success (boolean) | 154 @type str |
| 155 @return flag indicating success | |
| 156 @rtype bool | |
| 151 """ | 157 """ |
| 152 image = QImage(filename) | 158 image = QImage(filename) |
| 153 if image.isNull(): | 159 if image.isNull(): |
| 154 E5MessageBox.warning( | 160 E5MessageBox.warning( |
| 155 self, | 161 self, |
| 166 def getDiagramName(self): | 172 def getDiagramName(self): |
| 167 """ | 173 """ |
| 168 Public method to retrieve a name for the diagram. | 174 Public method to retrieve a name for the diagram. |
| 169 | 175 |
| 170 @return name for the diagram | 176 @return name for the diagram |
| 177 @rtype str | |
| 171 """ | 178 """ |
| 172 return self.pixmapfile | 179 return self.pixmapfile |
| 173 | 180 |
| 174 def getStatus(self): | 181 def getStatus(self): |
| 175 """ | 182 """ |
| 176 Public method to retrieve the status of the canvas. | 183 Public method to retrieve the status of the canvas. |
| 177 | 184 |
| 178 @return flag indicating a successful pixmap loading (boolean) | 185 @return flag indicating a successful pixmap loading |
| 186 @rtype bool | |
| 179 """ | 187 """ |
| 180 return self.status | 188 return self.status |
| 181 | 189 |
| 182 def wheelEvent(self, evt): | 190 def wheelEvent(self, evt): |
| 183 """ | 191 """ |
| 184 Protected method to handle wheel events. | 192 Protected method to handle wheel events. |
| 185 | 193 |
| 186 @param evt reference to the wheel event (QWheelEvent) | 194 @param evt reference to the wheel event |
| 195 @type QWheelEvent | |
| 187 """ | 196 """ |
| 188 if evt.modifiers() & Qt.KeyboardModifier.ControlModifier: | 197 if evt.modifiers() & Qt.KeyboardModifier.ControlModifier: |
| 189 delta = evt.angleDelta().y() | 198 delta = evt.angleDelta().y() |
| 190 if delta < 0: | 199 if delta < 0: |
| 191 self.__zoomOut() | 200 self.__zoomOut() |
| 198 | 207 |
| 199 def event(self, evt): | 208 def event(self, evt): |
| 200 """ | 209 """ |
| 201 Public method handling events. | 210 Public method handling events. |
| 202 | 211 |
| 203 @param evt reference to the event (QEvent) | 212 @param evt reference to the event |
| 204 @return flag indicating, if the event was handled (boolean) | 213 @type QEvent |
| 214 @return flag indicating, if the event was handled | |
| 215 @rtype bool | |
| 205 """ | 216 """ |
| 206 if evt.type() == QEvent.Type.Gesture: | 217 if evt.type() == QEvent.Type.Gesture: |
| 207 self.gestureEvent(evt) | 218 self.gestureEvent(evt) |
| 208 return True | 219 return True |
| 209 | 220 |
| 211 | 222 |
| 212 def gestureEvent(self, evt): | 223 def gestureEvent(self, evt): |
| 213 """ | 224 """ |
| 214 Protected method handling gesture events. | 225 Protected method handling gesture events. |
| 215 | 226 |
| 216 @param evt reference to the gesture event (QGestureEvent | 227 @param evt reference to the gesture event |
| 228 @type QGestureEvent | |
| 217 """ | 229 """ |
| 218 pinch = evt.gesture(Qt.GestureType.PinchGesture) | 230 pinch = evt.gesture(Qt.GestureType.PinchGesture) |
| 219 if pinch: | 231 if pinch: |
| 220 if pinch.state() == Qt.GestureState.GestureStarted: | 232 if pinch.state() == Qt.GestureState.GestureStarted: |
| 221 pinch.setTotalScaleFactor(self.__zoom() / 100) | 233 pinch.setTotalScaleFactor(self.__zoom() / 100) |
| 229 | 241 |
| 230 def __adjustScrollBar(self, scrollBar, factor): | 242 def __adjustScrollBar(self, scrollBar, factor): |
| 231 """ | 243 """ |
| 232 Private method to adjust a scrollbar by a certain factor. | 244 Private method to adjust a scrollbar by a certain factor. |
| 233 | 245 |
| 234 @param scrollBar reference to the scrollbar object (QScrollBar) | 246 @param scrollBar reference to the scrollbar object |
| 235 @param factor factor to adjust by (float) | 247 @type QScrollBar |
| 248 @param factor factor to adjust by | |
| 249 @type float | |
| 236 """ | 250 """ |
| 237 scrollBar.setValue(int(factor * scrollBar.value() + | 251 scrollBar.setValue(int(factor * scrollBar.value() + |
| 238 ((factor - 1) * scrollBar.pageStep() / 2))) | 252 ((factor - 1) * scrollBar.pageStep() / 2))) |
| 239 | 253 |
| 240 def __levelForZoom(self, zoom): | 254 def __levelForZoom(self, zoom): |
| 241 """ | 255 """ |
| 242 Private method determining the zoom level index given a zoom factor. | 256 Private method determining the zoom level index given a zoom factor. |
| 243 | 257 |
| 244 @param zoom zoom factor (integer) | 258 @param zoom zoom factor |
| 245 @return index of zoom factor (integer) | 259 @type int |
| 260 @return index of zoom factor | |
| 261 @rtype int | |
| 246 """ | 262 """ |
| 247 try: | 263 try: |
| 248 index = PixmapDiagram.ZoomLevels.index(zoom) | 264 index = PixmapDiagram.ZoomLevels.index(zoom) |
| 249 except ValueError: | 265 except ValueError: |
| 250 for index in range(len(PixmapDiagram.ZoomLevels)): | 266 for index in range(len(PixmapDiagram.ZoomLevels)): |
| 254 | 270 |
| 255 def __doZoom(self, value): | 271 def __doZoom(self, value): |
| 256 """ | 272 """ |
| 257 Private method to set the zoom value in percent. | 273 Private method to set the zoom value in percent. |
| 258 | 274 |
| 259 @param value zoom value in percent (integer) | 275 @param value zoom value in percent |
| 276 @type int | |
| 260 """ | 277 """ |
| 261 oldValue = self.__zoom() | 278 oldValue = self.__zoom() |
| 262 if value != oldValue: | 279 if value != oldValue: |
| 263 self.pixmapLabel.resize( | 280 self.pixmapLabel.resize( |
| 264 value / 100 * self.pixmapLabel.pixmap().size()) | 281 value / 100 * self.pixmapLabel.pixmap().size()) |
| 295 | 312 |
| 296 def __zoom(self): | 313 def __zoom(self): |
| 297 """ | 314 """ |
| 298 Private method to get the current zoom factor in percent. | 315 Private method to get the current zoom factor in percent. |
| 299 | 316 |
| 300 @return current zoom factor in percent (integer) | 317 @return current zoom factor in percent |
| 318 @rtype int | |
| 301 """ | 319 """ |
| 302 return int(self.pixmapLabel.width() / | 320 return int(self.pixmapLabel.width() / |
| 303 self.pixmapLabel.pixmap().width() * 100.0) | 321 self.pixmapLabel.pixmap().width() * 100.0) |
| 304 | 322 |
| 305 def __printDiagram(self): | 323 def __printDiagram(self): |
| 353 | 371 |
| 354 def __print(self, printer): | 372 def __print(self, printer): |
| 355 """ | 373 """ |
| 356 Private slot to the actual printing. | 374 Private slot to the actual printing. |
| 357 | 375 |
| 358 @param printer reference to the printer object (QPrinter) | 376 @param printer reference to the printer object |
| 377 @type QPrinter | |
| 359 """ | 378 """ |
| 360 painter = QPainter() | 379 painter = QPainter() |
| 361 painter.begin(printer) | 380 painter.begin(printer) |
| 362 | 381 |
| 363 # calculate margin and width of printout | 382 # calculate margin and width of printout |
