Mercurial Repositories > eric / file comparison
comparison: Graphics/AssociationItem.py
Graphics/AssociationItem.py
- changeset 2992
- dbdf27746da5
- parent 2953
- 703452a2876f
- child 3022
- 57179e4cdadd
- child 3057
- 10516539f238
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| 2991:226481ff40d1 | 2992:dbdf27746da5 |
|---|---|
| 71 | 71 |
| 72 self.setFlag(QGraphicsItem.ItemIsMovable, False) | 72 self.setFlag(QGraphicsItem.ItemIsMovable, False) |
| 73 self.setFlag(QGraphicsItem.ItemIsSelectable, False) | 73 self.setFlag(QGraphicsItem.ItemIsSelectable, False) |
| 74 | 74 |
| 75 if topToBottom: | 75 if topToBottom: |
| 76 self.calculateEndingPoints = self.__calculateEndingPoints_topToBottom | 76 self.calculateEndingPoints = \ |
| 77 self.__calculateEndingPoints_topToBottom | |
| 77 else: | 78 else: |
| 78 ## self.calculateEndingPoints = self.__calculateEndingPoints_center | 79 ## self.calculateEndingPoints = self.__calculateEndingPoints_center |
| 79 self.calculateEndingPoints = self.__calculateEndingPoints_rectangle | 80 self.calculateEndingPoints = self.__calculateEndingPoints_rectangle |
| 80 | 81 |
| 81 self.itemA = itemA | 82 self.itemA = itemA |
| 91 self.itemA.addAssociation(self) | 92 self.itemA.addAssociation(self) |
| 92 self.itemB.addAssociation(self) | 93 self.itemB.addAssociation(self) |
| 93 | 94 |
| 94 def __mapRectFromItem(self, item): | 95 def __mapRectFromItem(self, item): |
| 95 """ | 96 """ |
| 96 Private method to map item's rectangle to this item's coordinate system. | 97 Private method to map item's rectangle to this item's coordinate |
| 98 system. | |
| 97 | 99 |
| 98 @param item reference to the item to be mapped (QGraphicsRectItem) | 100 @param item reference to the item to be mapped (QGraphicsRectItem) |
| 99 @return item's rectangle in local coordinates (QRectF) | 101 @return item's rectangle in local coordinates (QRectF) |
| 100 """ | 102 """ |
| 101 rect = item.rect() | 103 rect = item.rect() |
| 235 | 237 |
| 236 self.__updateEndPoint(self.regionB, False) | 238 self.__updateEndPoint(self.regionB, False) |
| 237 | 239 |
| 238 def __findPointRegion(self, rect, posX, posY): | 240 def __findPointRegion(self, rect, posX, posY): |
| 239 """ | 241 """ |
| 240 Private method to find out, which region of rectangle rect contains the point | 242 Private method to find out, which region of rectangle rect contains |
| 241 (PosX, PosY) and returns the region number. | 243 the point (PosX, PosY) and returns the region number. |
| 242 | 244 |
| 243 @param rect rectangle to calculate the region for (QRectF) | 245 @param rect rectangle to calculate the region for (QRectF) |
| 244 @param posX x position of point (float) | 246 @param posX x position of point (float) |
| 245 @param posY y position of point (float) | 247 @param posY y position of point (float) |
| 246 @return the calculated region number<br /> | 248 @return the calculated region number<br /> |
| 348 else: | 350 else: |
| 349 self.setEndPoint(px, py) | 351 self.setEndPoint(px, py) |
| 350 | 352 |
| 351 def __findRectIntersectionPoint(self, item, p1, p2): | 353 def __findRectIntersectionPoint(self, item, p1, p2): |
| 352 """ | 354 """ |
| 353 Private method to find the intersetion point of a line with a rectangle. | 355 Private method to find the intersetion point of a line with a |
| 356 rectangle. | |
| 354 | 357 |
| 355 @param item item to check against | 358 @param item item to check against |
| 356 @param p1 first point of the line (QPointF) | 359 @param p1 first point of the line (QPointF) |
| 357 @param p2 second point of the line (QPointF) | 360 @param p2 second point of the line (QPointF) |
| 358 @return the intersection point (QPointF) | 361 @return the intersection point (QPointF) |
| 477 | 480 |
| 478 pt.setY((b2 - b1) / (slope1 - slope2)) | 481 pt.setY((b2 - b1) / (slope1 - slope2)) |
| 479 pt.setX(slope1 * pt.y() + b1) | 482 pt.setX(slope1 * pt.y() + b1) |
| 480 # the intersection point must be inside the segment (x1, y1) (x2, y2) | 483 # the intersection point must be inside the segment (x1, y1) (x2, y2) |
| 481 if x2 >= x1 and y2 >= y1: | 484 if x2 >= x1 and y2 >= y1: |
| 482 if not ((x1 <= pt.y() and pt.y() <= x2) and (y1 <= pt.x() and pt.x() <= y2)): | 485 if not ((x1 <= pt.y() and pt.y() <= x2) and |
| 486 (y1 <= pt.x() and pt.x() <= y2)): | |
| 483 pt.setX(-1.0) | 487 pt.setX(-1.0) |
| 484 pt.setY(-1.0) | 488 pt.setY(-1.0) |
| 485 elif x2 < x1 and y2 >= y1: | 489 elif x2 < x1 and y2 >= y1: |
| 486 if not ((x2 <= pt.y() and pt.y() <= x1) and (y1 <= pt.x() and pt.x() <= y2)): | 490 if not ((x2 <= pt.y() and pt.y() <= x1) and |
| 491 (y1 <= pt.x() and pt.x() <= y2)): | |
| 487 pt.setX(-1.0) | 492 pt.setX(-1.0) |
| 488 pt.setY(-1.0) | 493 pt.setY(-1.0) |
| 489 elif x2 >= x1 and y2 < y1: | 494 elif x2 >= x1 and y2 < y1: |
| 490 if not ((x1 <= pt.y() and pt.y() <= x2) and (y2 <= pt.x() and pt.x() <= y1)): | 495 if not ((x1 <= pt.y() and pt.y() <= x2) and |
| 496 (y2 <= pt.x() and pt.x() <= y1)): | |
| 491 pt.setX(-1.0) | 497 pt.setX(-1.0) |
| 492 pt.setY(-1.0) | 498 pt.setY(-1.0) |
| 493 else: | 499 else: |
| 494 if not ((x2 <= pt.y() and pt.y() <= x1) and (y2 <= pt.x() and pt.x() <= y1)): | 500 if not ((x2 <= pt.y() and pt.y() <= x1) and |
| 501 (y2 <= pt.x() and pt.x() <= y1)): | |
| 495 pt.setX(-1.0) | 502 pt.setX(-1.0) |
| 496 pt.setY(-1.0) | 503 pt.setY(-1.0) |
| 497 | 504 |
| 498 return pt | 505 return pt |
| 499 | 506 |
