Mercurial Repositories > eric / file comparison
comparison: eric6/Graphics/SvgDiagram.py
eric6/Graphics/SvgDiagram.py
- changeset 8289
- 871b40c5a77a
- parent 8218
- 7c09585bd960
- child 8298
- 83ddb87b3bc1
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| 8288:809d5d5ac2ba | 8289:871b40c5a77a |
|---|---|
| 36 | 36 |
| 37 def __init__(self, svgFile, parent=None, name=None): | 37 def __init__(self, svgFile, parent=None, name=None): |
| 38 """ | 38 """ |
| 39 Constructor | 39 Constructor |
| 40 | 40 |
| 41 @param svgFile filename of a SVG graphics file to show (string) | 41 @param svgFile filename of a SVG graphics file to show |
| 42 @param parent parent widget of the view (QWidget) | 42 @type str |
| 43 @param name name of the view widget (string) | 43 @param parent parent widget of the view |
| 44 @type QWidget | |
| 45 @param name name of the view widget | |
| 46 @type str | |
| 44 """ | 47 """ |
| 45 super().__init__(parent) | 48 super().__init__(parent) |
| 46 if name: | 49 if name: |
| 47 self.setObjectName(name) | 50 self.setObjectName(name) |
| 48 else: | 51 else: |
| 119 | 122 |
| 120 def __showContextMenu(self, coord): | 123 def __showContextMenu(self, coord): |
| 121 """ | 124 """ |
| 122 Private slot to show the context menu of the listview. | 125 Private slot to show the context menu of the listview. |
| 123 | 126 |
| 124 @param coord the position of the mouse pointer (QPoint) | 127 @param coord the position of the mouse pointer |
| 128 @type QPoint | |
| 125 """ | 129 """ |
| 126 self.__menu.popup(self.mapToGlobal(coord)) | 130 self.__menu.popup(self.mapToGlobal(coord)) |
| 127 | 131 |
| 128 def __initToolBars(self): | 132 def __initToolBars(self): |
| 129 """ | 133 """ |
| 144 def getDiagramName(self): | 148 def getDiagramName(self): |
| 145 """ | 149 """ |
| 146 Public method to retrieve a name for the diagram. | 150 Public method to retrieve a name for the diagram. |
| 147 | 151 |
| 148 @return name for the diagram | 152 @return name for the diagram |
| 153 @rtype str | |
| 149 """ | 154 """ |
| 150 return self.svgFile | 155 return self.svgFile |
| 151 | 156 |
| 152 def wheelEvent(self, evt): | 157 def wheelEvent(self, evt): |
| 153 """ | 158 """ |
| 154 Protected method to handle wheel events. | 159 Protected method to handle wheel events. |
| 155 | 160 |
| 156 @param evt reference to the wheel event (QWheelEvent) | 161 @param evt reference to the wheel event |
| 162 @type QWheelEvent | |
| 157 """ | 163 """ |
| 158 if evt.modifiers() & Qt.KeyboardModifier.ControlModifier: | 164 if evt.modifiers() & Qt.KeyboardModifier.ControlModifier: |
| 159 delta = evt.angleDelta().y() | 165 delta = evt.angleDelta().y() |
| 160 if delta < 0: | 166 if delta < 0: |
| 161 self.__zoomOut() | 167 self.__zoomOut() |
| 168 | 174 |
| 169 def event(self, evt): | 175 def event(self, evt): |
| 170 """ | 176 """ |
| 171 Public method handling events. | 177 Public method handling events. |
| 172 | 178 |
| 173 @param evt reference to the event (QEvent) | 179 @param evt reference to the event |
| 174 @return flag indicating, if the event was handled (boolean) | 180 @type QEvent |
| 181 @return flag indicating, if the event was handled | |
| 182 @rtype bool | |
| 175 """ | 183 """ |
| 176 if evt.type() == QEvent.Type.Gesture: | 184 if evt.type() == QEvent.Type.Gesture: |
| 177 self.gestureEvent(evt) | 185 self.gestureEvent(evt) |
| 178 return True | 186 return True |
| 179 | 187 |
| 181 | 189 |
| 182 def gestureEvent(self, evt): | 190 def gestureEvent(self, evt): |
| 183 """ | 191 """ |
| 184 Protected method handling gesture events. | 192 Protected method handling gesture events. |
| 185 | 193 |
| 186 @param evt reference to the gesture event (QGestureEvent | 194 @param evt reference to the gesture event |
| 195 @type QGestureEvent | |
| 187 """ | 196 """ |
| 188 pinch = evt.gesture(Qt.GestureType.PinchGesture) | 197 pinch = evt.gesture(Qt.GestureType.PinchGesture) |
| 189 if pinch: | 198 if pinch: |
| 190 if pinch.state() == Qt.GestureState.GestureStarted: | 199 if pinch.state() == Qt.GestureState.GestureStarted: |
| 191 pinch.setTotalScaleFactor(self.__zoom() / 100) | 200 pinch.setTotalScaleFactor(self.__zoom() / 100) |
| 199 | 208 |
| 200 def __adjustScrollBar(self, scrollBar, factor): | 209 def __adjustScrollBar(self, scrollBar, factor): |
| 201 """ | 210 """ |
| 202 Private method to adjust a scrollbar by a certain factor. | 211 Private method to adjust a scrollbar by a certain factor. |
| 203 | 212 |
| 204 @param scrollBar reference to the scrollbar object (QScrollBar) | 213 @param scrollBar reference to the scrollbar object |
| 205 @param factor factor to adjust by (float) | 214 @type QScrollBar |
| 215 @param factor factor to adjust by | |
| 216 @type float | |
| 206 """ | 217 """ |
| 207 scrollBar.setValue( | 218 scrollBar.setValue( |
| 208 int(factor * scrollBar.value() + | 219 int(factor * scrollBar.value() + |
| 209 ((factor - 1) * scrollBar.pageStep() / 2))) | 220 ((factor - 1) * scrollBar.pageStep() / 2))) |
| 210 | 221 |
| 211 def __levelForZoom(self, zoom): | 222 def __levelForZoom(self, zoom): |
| 212 """ | 223 """ |
| 213 Private method determining the zoom level index given a zoom factor. | 224 Private method determining the zoom level index given a zoom factor. |
| 214 | 225 |
| 215 @param zoom zoom factor (integer) | 226 @param zoom zoom factor |
| 216 @return index of zoom factor (integer) | 227 @type int |
| 228 @return index of zoom factor | |
| 229 @rtype int | |
| 217 """ | 230 """ |
| 218 try: | 231 try: |
| 219 index = SvgDiagram.ZoomLevels.index(zoom) | 232 index = SvgDiagram.ZoomLevels.index(zoom) |
| 220 except ValueError: | 233 except ValueError: |
| 221 for index in range(len(SvgDiagram.ZoomLevels)): | 234 for index in range(len(SvgDiagram.ZoomLevels)): |
| 225 | 238 |
| 226 def __doZoom(self, value): | 239 def __doZoom(self, value): |
| 227 """ | 240 """ |
| 228 Private method to set the zoom value in percent. | 241 Private method to set the zoom value in percent. |
| 229 | 242 |
| 230 @param value zoom value in percent (integer) | 243 @param value zoom value in percent |
| 244 @type int | |
| 231 """ | 245 """ |
| 232 oldValue = self.__zoom() | 246 oldValue = self.__zoom() |
| 233 if value != oldValue: | 247 if value != oldValue: |
| 234 self.svgWidget.resize(value / 100 * self.svgWidget.sizeHint()) | 248 self.svgWidget.resize(value / 100 * self.svgWidget.sizeHint()) |
| 235 | 249 |
| 263 | 277 |
| 264 def __zoom(self): | 278 def __zoom(self): |
| 265 """ | 279 """ |
| 266 Private method to get the current zoom factor in percent. | 280 Private method to get the current zoom factor in percent. |
| 267 | 281 |
| 268 @return current zoom factor in percent (integer) | 282 @return current zoom factor in percent |
| 283 @rtype int | |
| 269 """ | 284 """ |
| 270 return int(self.svgWidget.width() / | 285 return int(self.svgWidget.width() / |
| 271 self.svgWidget.sizeHint().width() * 100.0) | 286 self.svgWidget.sizeHint().width() * 100.0) |
| 272 | 287 |
| 273 def __printDiagram(self): | 288 def __printDiagram(self): |
| 325 | 340 |
| 326 def __print(self, printer): | 341 def __print(self, printer): |
| 327 """ | 342 """ |
| 328 Private slot to the actual printing. | 343 Private slot to the actual printing. |
| 329 | 344 |
| 330 @param printer reference to the printer object (QPrinter) | 345 @param printer reference to the printer object |
| 346 @type QPrinter | |
| 331 """ | 347 """ |
| 332 painter = QPainter() | 348 painter = QPainter() |
| 333 painter.begin(printer) | 349 painter.begin(printer) |
| 334 | 350 |
| 335 # calculate margin and width of printout | 351 # calculate margin and width of printout |
