Mercurial Repositories > eric / file comparison
comparison: E5Graphics/E5GraphicsView.py
E5Graphics/E5GraphicsView.py
- branch
- Py2 comp.
- changeset 3057
- 10516539f238
- parent 2525
- 8b507a9a2d40
- parent 2990
- 583beaf0b4b8
- child 3058
- 0a02c433f52d
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| 3056:9986ec0e559a | 3057:10516539f238 |
|---|---|
| 51 self.setAlignment(Qt.Alignment(Qt.AlignLeft | Qt.AlignTop)) | 51 self.setAlignment(Qt.Alignment(Qt.AlignLeft | Qt.AlignTop)) |
| 52 self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOn) | 52 self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOn) |
| 53 self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn) | 53 self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn) |
| 54 self.setViewportUpdateMode(QGraphicsView.SmartViewportUpdate) | 54 self.setViewportUpdateMode(QGraphicsView.SmartViewportUpdate) |
| 55 | 55 |
| 56 self.setWhatsThis(self.trUtf8("<b>Graphics View</b>\n" | 56 self.setWhatsThis(self.trUtf8( |
| 57 "<b>Graphics View</b>\n" | |
| 57 "<p>This graphics view is used to show a diagram. \n" | 58 "<p>This graphics view is used to show a diagram. \n" |
| 58 "There are various actions available to manipulate the \n" | 59 "There are various actions available to manipulate the \n" |
| 59 "shown items.</p>\n" | 60 "shown items.</p>\n" |
| 60 "<ul>\n" | 61 "<ul>\n" |
| 61 "<li>Clicking on an item selects it.</li>\n" | 62 "<li>Clicking on an item selects it.</li>\n" |
| 62 "<li>Ctrl-clicking adds an item to the selection.</li>\n" | 63 "<li>Ctrl-clicking adds an item to the selection.</li>\n" |
| 63 "<li>Ctrl-clicking a selected item deselects it.</li>\n" | 64 "<li>Ctrl-clicking a selected item deselects it.</li>\n" |
| 64 "<li>Clicking on an empty spot of the canvas resets the selection.</li>\n" | 65 "<li>Clicking on an empty spot of the canvas resets the selection." |
| 66 "</li>\n" | |
| 65 "<li>Dragging the mouse over the canvas spans a rubberband to \n" | 67 "<li>Dragging the mouse over the canvas spans a rubberband to \n" |
| 66 "select multiple items.</li>\n" | 68 "select multiple items.</li>\n" |
| 67 "<li>Dragging the mouse over a selected item moves the \n" | 69 "<li>Dragging the mouse over a selected item moves the \n" |
| 68 "whole selection.</li>\n" | 70 "whole selection.</li>\n" |
| 69 "</ul>\n" | 71 "</ul>\n" |
| 102 | 104 |
| 103 def zoomReset(self): | 105 def zoomReset(self): |
| 104 """ | 106 """ |
| 105 Public method to handle the reset the zoom value. | 107 Public method to handle the reset the zoom value. |
| 106 """ | 108 """ |
| 107 self.setZoom(E5GraphicsView.ZoomLevels[E5GraphicsView.ZoomLevelDefault]) | 109 self.setZoom( |
| 110 E5GraphicsView.ZoomLevels[E5GraphicsView.ZoomLevelDefault]) | |
| 108 | 111 |
| 109 def setZoom(self, value): | 112 def setZoom(self, value): |
| 110 """ | 113 """ |
| 111 Public method to set the zoom value in percent. | 114 Public method to set the zoom value in percent. |
| 112 | 115 |
| 128 | 131 |
| 129 def resizeScene(self, amount, isWidth=True): | 132 def resizeScene(self, amount, isWidth=True): |
| 130 """ | 133 """ |
| 131 Public method to resize the scene. | 134 Public method to resize the scene. |
| 132 | 135 |
| 136 @param amount size increment (integer) | |
| 133 @param isWidth flag indicating width is to be resized (boolean) | 137 @param isWidth flag indicating width is to be resized (boolean) |
| 134 @param amount size increment (integer) | |
| 135 """ | 138 """ |
| 136 sceneRect = self.scene().sceneRect() | 139 sceneRect = self.scene().sceneRect() |
| 137 width = sceneRect.width() | 140 width = sceneRect.width() |
| 138 height = sceneRect.height() | 141 height = sceneRect.height() |
| 139 if isWidth: | 142 if isWidth: |
| 176 newHeight = size.height() | 179 newHeight = size.height() |
| 177 self.setSceneSize(newWidth, newHeight) | 180 self.setSceneSize(newWidth, newHeight) |
| 178 | 181 |
| 179 def _getDiagramRect(self, border=0): | 182 def _getDiagramRect(self, border=0): |
| 180 """ | 183 """ |
| 181 Protected method to calculate the minimum rectangle fitting the diagram. | 184 Protected method to calculate the minimum rectangle fitting the |
| 185 diagram. | |
| 182 | 186 |
| 183 @param border border width to include in the calculation (integer) | 187 @param border border width to include in the calculation (integer) |
| 184 @return the minimum rectangle (QRectF) | 188 @return the minimum rectangle (QRectF) |
| 185 """ | 189 """ |
| 186 startx = sys.maxsize | 190 startx = sys.maxsize |
| 291 | 295 |
| 292 def printDiagram(self, printer, diagramName=""): | 296 def printDiagram(self, printer, diagramName=""): |
| 293 """ | 297 """ |
| 294 Public method to print the diagram. | 298 Public method to print the diagram. |
| 295 | 299 |
| 296 @param printer reference to a ready configured printer object (QPrinter) | 300 @param printer reference to a ready configured printer object |
| 301 (QPrinter) | |
| 297 @param diagramName name of the diagram (string) | 302 @param diagramName name of the diagram (string) |
| 298 """ | 303 """ |
| 299 painter = QPainter() | 304 painter = QPainter() |
| 300 painter.begin(printer) | 305 painter.begin(printer) |
| 301 offsetX = 0 | 306 offsetX = 0 |
| 306 painter.setFont(font) | 311 painter.setFont(font) |
| 307 fm = painter.fontMetrics() | 312 fm = painter.fontMetrics() |
| 308 fontHeight = fm.lineSpacing() | 313 fontHeight = fm.lineSpacing() |
| 309 marginX = printer.pageRect().x() - printer.paperRect().x() | 314 marginX = printer.pageRect().x() - printer.paperRect().x() |
| 310 marginX = \ | 315 marginX = \ |
| 311 Preferences.getPrinter("LeftMargin") * int(printer.resolution() / 2.54) \ | 316 Preferences.getPrinter("LeftMargin") * int( |
| 312 - marginX | 317 printer.resolution() / 2.54) - marginX |
| 313 marginY = printer.pageRect().y() - printer.paperRect().y() | 318 marginY = printer.pageRect().y() - printer.paperRect().y() |
| 314 marginY = \ | 319 marginY = \ |
| 315 Preferences.getPrinter("TopMargin") * int(printer.resolution() / 2.54) \ | 320 Preferences.getPrinter("TopMargin") * int( |
| 316 - marginY | 321 printer.resolution() / 2.54) - marginY |
| 317 | 322 |
| 318 width = printer.width() - marginX \ | 323 width = printer.width() - marginX \ |
| 319 - Preferences.getPrinter("RightMargin") * int(printer.resolution() / 2.54) | 324 - Preferences.getPrinter("RightMargin") * int( |
| 325 printer.resolution() / 2.54) | |
| 320 height = printer.height() - fontHeight - 4 - marginY \ | 326 height = printer.height() - fontHeight - 4 - marginY \ |
| 321 - Preferences.getPrinter("BottomMargin") * int(printer.resolution() / 2.54) | 327 - Preferences.getPrinter("BottomMargin") * int( |
| 328 printer.resolution() / 2.54) | |
| 322 | 329 |
| 323 border = self.border == 0 and 5 or self.border | 330 border = self.border == 0 and 5 or self.border |
| 324 rect = self._getDiagramRect(border) | 331 rect = self._getDiagramRect(border) |
| 325 diagram = self.__getDiagram(rect) | 332 diagram = self.__getDiagram(rect) |
| 326 | 333 |
| 374 printer.newPage() | 381 printer.newPage() |
| 375 page += 1 | 382 page += 1 |
| 376 | 383 |
| 377 painter.end() | 384 painter.end() |
| 378 | 385 |
| 379 ############################################################################ | 386 ########################################################################### |
| 380 ## The methods below should be overridden by subclasses to get special | 387 ## The methods below should be overridden by subclasses to get special |
| 381 ## behavior. | 388 ## behavior. |
| 382 ############################################################################ | 389 ########################################################################### |
| 383 | 390 |
| 384 def filteredItems(self, items): | 391 def filteredItems(self, items): |
| 385 """ | 392 """ |
| 386 Public method to filter a list of items. | 393 Public method to filter a list of items. |
| 387 | 394 |
