개정판 86b45221
issue #505: improve zoom window function with control key
Change-Id: I4d22dc05c6f16ea8f7075774032224044321fb17
| DTI_PID/DTI_PID/QtImageViewer.py | ||
|---|---|---|
| 284 | 284 |
''' |
| 285 | 285 |
|
| 286 | 286 |
def zoomImage(self, isZoomIn, event, adjust=1): |
| 287 |
""" Zoom in & out |
|
| 288 |
""" |
|
| 287 |
"""Zoom in & out """ |
|
| 289 | 288 |
|
| 290 | 289 |
HALF_SIZE = 300 |
| 291 | 290 |
clickPos = event.pos() |
| 292 | 291 |
scenePos1 = self.mapToScene(clickPos.x() - HALF_SIZE // adjust, clickPos.y() - HALF_SIZE // adjust) |
| 293 | 292 |
scenePos2 = self.mapToScene(clickPos.x() + HALF_SIZE // adjust, clickPos.y() + HALF_SIZE // adjust) |
| 294 | 293 |
if isZoomIn: |
| 295 |
zoomArea = QRectF( |
|
| 296 |
QPointF(scenePos1.x() if scenePos1.x() > 0 else 0, scenePos1.y() if scenePos1.y() > 0 else 0), |
|
| 297 |
QPointF(scenePos2.x(), scenePos2.y())) |
|
| 298 |
# self.fitInView(zoomArea, Qt.KeepAspectRatioByExpanding) |
|
| 294 |
zoomArea = QRectF(scenePos1, scenePos2) |
|
| 299 | 295 |
viewBBox = self.zoomStack[-1] if len(self.zoomStack) else self.sceneRect() |
| 300 | 296 |
selectionBBox = zoomArea.intersected(viewBBox) |
| 301 | 297 |
self.scene.setSelectionArea(QPainterPath()) # Clear current selection area. |
| 302 |
if selectionBBox.width() > HALF_SIZE * 2 and selectionBBox.height() > HALF_SIZE * 2: |
|
| 303 |
if selectionBBox.isValid() and (selectionBBox != viewBBox): |
|
| 304 |
self.zoomStack.append(selectionBBox) |
|
| 305 |
self.updateViewer() |
|
| 298 |
if selectionBBox.isValid() and (selectionBBox != viewBBox): |
|
| 299 |
self.zoomStack.append(selectionBBox) |
|
| 300 |
self.updateViewer() |
|
| 306 | 301 |
else: |
| 307 | 302 |
zoomNewRect = None |
| 308 | 303 |
self.scene.setSelectionArea(QPainterPath()) # Clear current selection area. |
| 309 |
if len(self.zoomStack): |
|
| 310 |
self.zoomStack.pop() |
|
| 311 |
if len(self.zoomStack): |
|
| 312 |
newScenePos = self.mapToScene(clickPos.x(), clickPos.y()) |
|
| 313 |
newPosX1 = newScenePos.x() - self.zoomStack[-1].width() / 2 |
|
| 314 |
newPosY1 = newScenePos.y() - self.zoomStack[-1].height() / 2 |
|
| 315 |
zoomNewPos1 = QPointF(newPosX1 if newPosX1 > 0 else 0, newPosY1 if newPosY1 > 0 else 0) |
|
| 316 |
newPosX2 = newScenePos.x() + self.zoomStack[-1].width() / 2 |
|
| 317 |
newPosY2 = newScenePos.y() + self.zoomStack[-1].width() / 2 |
|
| 318 |
zoomNewPos2 = QPointF(newPosX2, newPosY2) |
|
| 319 |
zoomNewRect = QRectF(zoomNewPos1, zoomNewPos2) |
|
| 304 |
if self.zoomStack: |
|
| 305 |
zoomNewRect = self.zoomStack.pop() |
|
| 320 | 306 |
self.updateViewer(zoomNewRect) |
| 321 | 307 |
|
| 322 | 308 |
def resizeEvent(self, event): |
| 323 |
""" Maintain current zoom on resize. |
|
| 324 |
""" |
|
| 309 |
"""Maintain current zoom on resize""" |
|
| 325 | 310 |
self.updateViewer() |
| 326 | 311 |
|
| 327 | 312 |
''' |
내보내기 Unified diff
