def applyExpression(self, expr=None, normalized=None):
if expr is not None:
self._savedExpression = expr
else:
d = quickdialog.QuickDialog(self, "Enter Expression")
d.expression = quickdialog.OptionalStringInput(
d, "Execute 'lambda x: ")
d.expression.setText(self._savedExpression)
d.expression.setFocus()
d.addSpacing(10)
d.norm = quickdialog.CheckBox(
d, "Normalize intensity to range 0...255")
d.norm.setChecked(self._normalized)
if d.exec_() == 0:
return
self._savedExpression = d.expression.text()
self._normalized = True if d.norm.selection() else False
if normalized is not None:
self._normalized = normalized
try:
image, normalized = self.getDisplayedImage()
except Exception as e:
qt.QMessageBox.critical(self, "Error Applying Expression", str(e))
return
OverlayViewer.setImage(self, image.qimage(normalized))
def applyExpression(self, expr=None, normalized=None):
if expr is not None:
self._savedExpression = expr
else:
d = quickdialog.QuickDialog(self, "Enter Expression")
d.expression = quickdialog.OptionalStringInput(d, "Execute 'lambda x: ")
d.expression.setText(self._savedExpression)
d.expression.setFocus()
d.addSpacing(10)
d.norm = quickdialog.CheckBox(d, "Normalize intensity to range 0...255")
d.norm.setChecked(self._normalized)
if d.exec_() == 0:
return
self._savedExpression = d.expression.text()
self._normalized = True if d.norm.selection() else False
if normalized is not None:
self._normalized = normalized
try:
image, normalized = self.getDisplayedImage()
except Exception as e:
qt.QMessageBox.critical(self, "Error Applying Expression", str(e))
return
OverlayViewer.setImage(self, image.qimage(normalized))
def mousePressEvent(self, e):
imagePos = OverlayViewer.imageCoordinateF(self,
qcore.QPoint(e.x(), e.y()))
self.emit(qcore.SIGNAL("mousePressed"),
(imagePos.x(), imagePos.y(), e.button()))
OverlayViewer.mousePressEvent(self, e)
e.ignore()
def __init__(self, image, normalize=True, title=None, parent=None):
OverlayViewer.__init__(self, parent)
self.setImage(image, normalize)
self._savedExpression = "x"
self._lastSaveType = 2
self.overlays = []
if title is not None:
self.setWindowTitle(title)
elif hasattr(image, "name"):
self.setWindowTitle(image.name)
else:
for k in xrange(1, 10000):
if not ImageViewer.activeViewers.has_key(k):
break
ImageViewer.activeViewers[k] = self
self.setWindowTitle("Image %d" % k)
self.imageCursor = ImageCursor(self)
self.imageCursor.setVisible(False)
self.imageCursor.setPosition(qcore.QPoint(self.image.width // 2, self.image.height // 2))
OverlayViewer.addOverlay(self, self.imageCursor)
self.zoomInAction = qt.QAction("Zoom in", self)
self.zoomInAction.setShortcut("+")
self.connect(self.zoomInAction, SIGNAL("triggered()"), self.zoomInPopup)
self.zoomOutAction = qt.QAction("Zoom out", self)
self.zoomOutAction.setShortcut("-")
self.connect(self.zoomOutAction, SIGNAL("triggered()"), self.zoomOutPopup)
self.saveAction = qt.QAction("Save image...", self)
self.saveAction.setShortcut("S")
self.connect(self.saveAction, SIGNAL("triggered()"), self.writeImage)
self.svgAction = qt.QAction("Save as SVG...", self)
self.svgAction.setShortcut("V")
self.connect(self.svgAction, SIGNAL("triggered()"), self.writeSVG)
self.expressionAction = qt.QAction("Apply expression...", self)
self.expressionAction.setShortcut("E")
self.connect(self.expressionAction, SIGNAL("triggered()"), self.applyExpression)
self.cursorAction = qt.QAction("Line cursor", self)
self.cursorAction.setShortcut("L")
self.cursorAction.setCheckable(True)
self.cursorAction.setChecked(False)
self.connect(self.cursorAction, SIGNAL("triggered()"), self._toggleImageCursor)
self.popup = qt.QMenu(self)
self.popup.addAction(self.zoomInAction)
self.popup.addAction(self.zoomOutAction)
self.popup.addAction(self.saveAction)
self.popup.addAction(self.svgAction)
self.popup.addAction(self.expressionAction)
self.popup.addAction(self.cursorAction)
self.overlayMenu = self.popup.addMenu("Overlays")
self.connect(self.overlayMenu, SIGNAL("aboutToShow()"), self.overlayPopup)
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError, e:
print "No such overlay."
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError, e:
print "No such overlay."
def addOverlay(self, overlay):
if not hasattr(overlay, "draw"):
raise TypeError("addOverlay: " + str(overlay) + "is no valid overlay with 'draw' method!")
if overlay.parent() is None:
overlay.setParent(self)
overlay.visible = True
if not hasattr(overlay, "name") or not overlay.name:
overlay.name = self._defaultOverlayName(overlay)
self.overlays.append(overlay)
OverlayViewer.addOverlay(self, overlay)
self.update()
return len(self.overlays) - 1
def keyPressEvent(self, e):
"handles keys [S], [E], and possibly [Q] (for toplevel-windows)"
if e.key() == qcore.Qt.Key_Q and not self.parent():
self.close()
elif e.key() == qcore.Qt.Key_S:
self.writeImage()
elif e.key() == qcore.Qt.Key_E:
self.applyExpression()
elif e.key() == qcore.Qt.Key_L:
self.cursorAction.trigger()
else:
OverlayViewer.keyPressEvent(self, e)
def addOverlay(self, overlay):
if not hasattr(overlay, "draw"):
raise TypeError("addOverlay: " + str(overlay) +
"is no valid overlay with 'draw' method!")
if overlay.parent() is None:
overlay.setParent(self)
overlay.visible = True
if not hasattr(overlay, "name") or not overlay.name:
overlay.name = self._defaultOverlayName(overlay)
self.overlays.append(overlay)
OverlayViewer.addOverlay(self, overlay)
self.update()
return len(self.overlays) - 1
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError as e:
print("No such overlay.")
else:
try:
self.overlays.remove(overlay)
OverlayViewer.removeOverlay(self, overlay)
self.update()
except ValueError as e:
print("No such overlay.")
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError as e:
print("No such overlay.")
else:
try:
self.overlays.remove(overlay)
OverlayViewer.removeOverlay(self, overlay)
self.update()
except ValueError as e:
print("No such overlay.")
def keyPressEvent(self, e):
"handles keys [S], [E], and possibly [Q] (for toplevel-windows)"
if e.key() == qcore.Qt.Key_Q and not self.parent():
self.close()
elif e.key() == qcore.Qt.Key_S:
self.writeImage()
elif e.key() == qcore.Qt.Key_E:
self.applyExpression()
elif e.key() == qcore.Qt.Key_L:
self.cursorAction.trigger()
elif e.key() == qcore.Qt.Key_Right or e.key() == qcore.Qt.Key_Left or \
e.key() == qcore.Qt.Key_Up or e.key() == qcore.Qt.Key_Down:
OverlayViewer.keyPressEvent(self, e)
elif e.key() == qcore.Qt.Key_Plus or e.key() == qcore.Qt.Key_Greater:
OverlayViewer.zoomUp(self)
elif e.key() == qcore.Qt.Key_Minus or e.key() == qcore.Qt.Key_Less:
OverlayViewer.zoomDown(self)
else:
self.emit(qcore.SIGNAL("keyPressed"), (e.key()))
e.ignore()
def keyPressEvent(self, e):
"handles keys [S], [E], and possibly [Q] (for toplevel-windows)"
if e.key() == qcore.Qt.Key_Q and not self.parent():
self.close()
elif e.key() == qcore.Qt.Key_S:
self.writeImage()
elif e.key() == qcore.Qt.Key_E:
self.applyExpression()
elif e.key() == qcore.Qt.Key_L:
self.cursorAction.trigger()
elif e.key() == qcore.Qt.Key_Right or e.key() == qcore.Qt.Key_Left or \
e.key() == qcore.Qt.Key_Up or e.key() == qcore.Qt.Key_Down:
OverlayViewer.keyPressEvent(self, e)
elif e.key() == qcore.Qt.Key_Plus or e.key() == qcore.Qt.Key_Greater:
OverlayViewer.zoomUp(self)
elif e.key() == qcore.Qt.Key_Minus or e.key() == qcore.Qt.Key_Less:
OverlayViewer.zoomDown(self)
else:
self.emit(qcore.SIGNAL("keyPressed"), (e.key()))
e.ignore()
def __init__(self, image, normalize=True, title=None, parent=None):
OverlayViewer.__init__(self, parent)
self.setImage(image, normalize)
self._savedExpression = "x"
self._lastSaveType = 2
self.overlays = []
if title is not None:
self.setWindowTitle(title)
elif hasattr(image, "name"):
self.setWindowTitle(image.name)
else:
for k in xrange(1, 10000):
if not ImageViewer.activeViewers.has_key(k):
break
ImageViewer.activeViewers[k] = self
self.setWindowTitle("Image %d" % k)
#self.imageCursor = ImageCursor(self) # doesn't work anymore - setVisible() is gone
self.imageCursor = Crosshair(self)
self.imageCursor.setVisible(False)
self.imageCursor.setPosition(
qcore.QPoint(self.image.width // 2, self.image.height // 2))
OverlayViewer.addOverlay(self, self.imageCursor)
self.zoomInAction = qt.QAction("Zoom in", self)
self.zoomInAction.setShortcut("+")
self.connect(self.zoomInAction, SIGNAL("triggered()"),
self.zoomInPopup)
self.zoomOutAction = qt.QAction("Zoom out", self)
self.zoomOutAction.setShortcut("-")
self.connect(self.zoomOutAction, SIGNAL("triggered()"),
self.zoomOutPopup)
self.saveAction = qt.QAction("Save image...", self)
self.saveAction.setShortcut("S")
self.connect(self.saveAction, SIGNAL("triggered()"), self.writeImage)
self.svgAction = qt.QAction("Save as SVG...", self)
self.svgAction.setShortcut("V")
self.connect(self.svgAction, SIGNAL("triggered()"), self.writeSVG)
self.expressionAction = qt.QAction("Apply expression...", self)
self.expressionAction.setShortcut("E")
self.connect(self.expressionAction, SIGNAL("triggered()"),
self.applyExpression)
self.cursorAction = qt.QAction("Line cursor", self)
self.cursorAction.setShortcut("L")
self.cursorAction.setCheckable(True)
self.cursorAction.setChecked(False)
self.connect(self.cursorAction, SIGNAL("triggered()"),
self._toggleImageCursor)
self.popup = qt.QMenu(self)
self.popup.addAction(self.zoomInAction)
self.popup.addAction(self.zoomOutAction)
self.popup.addAction(self.saveAction)
self.popup.addAction(self.svgAction)
self.popup.addAction(self.expressionAction)
self.popup.addAction(self.cursorAction)
self.overlayMenu = self.popup.addMenu("Overlays")
self.connect(self.overlayMenu, SIGNAL("aboutToShow()"),
self.overlayPopup)
OverlayViewer.addOverlay(self, overlay)
self.update()
return len(self.overlays) - 1
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError, e:
print "No such overlay."
else:
try:
self.overlays.remove(overlay)
OverlayViewer.removeOverlay(self, overlay)
self.update()
except ValueError, e:
print "No such overlay."
def _slideAfterZoom(self, shift):
if self.zoomLevel() > 0:
shift *= 1 + self.zoomLevel()
elif self.zoomLevel() < 0:
shift /= 1 - self.zoomLevel()
self.slideBy(shift)
def zoomInPopup(self):
beforePos = self.imageCoordinate(self.mousepos)
self.zoomUp()
afterPos = self.imageCoordinate(self.mousepos)
def setImage(self, image, normalize=True):
if not hasattr(image, "qimage"):
image = image.view(vigra.Image)
self.image = image
self._normalized = normalize
OverlayViewer.setImage(self, image.qimage(normalize))
def mousePressEvent(self, e):
imagePos = OverlayViewer.imageCoordinateF(self, qcore.QPoint(e.x(), e.y()))
self.emit(qcore.SIGNAL("mousePressed"), (imagePos.x(), imagePos.y(), e.button()))
OverlayViewer.mousePressEvent(self, e)
e.ignore()
def setImage(self, image, normalize=True):
if not hasattr(image, "qimage"):
image = image.view(vigra.Image)
self.image = image
self._normalized = normalize
OverlayViewer.setImage(self, image.qimage(normalize))
OverlayViewer.addOverlay(self, overlay)
self.update()
return len(self.overlays) - 1
def removeOverlay(self, overlay):
if type(overlay) == int:
try:
OverlayViewer.removeOverlay(self, self.overlays[overlay])
self.overlays.pop(overlay)
self.update()
except IndexError, e:
print "No such overlay."
else:
try:
self.overlays.remove(overlay)
OverlayViewer.removeOverlay(self, overlay)
self.update()
except ValueError, e:
print "No such overlay."
def _slideAfterZoom(self, shift):
if self.zoomLevel() > 0:
shift *= 1 + self.zoomLevel()
elif self.zoomLevel() < 0:
shift /= 1 - self.zoomLevel()
self.slideBy(shift)
def zoomInPopup(self):
beforePos = self.imageCoordinate(self.mousepos)
self.zoomUp()
afterPos = self.imageCoordinate(self.mousepos)