def mousePressEvent(self, event):
'''
Inform the scene viewer of a mouse press event.
'''
self._handle_mouse_events = False # Track when the zinc should be handling mouse events
if not self._ignore_mouse_events and (event.modifiers() & self._editModifier) and \
(self._nodeEditMode or self._nodeEditVectorMode or self._nodeCreateMode) and \
button_map[event.button()] == Sceneviewerinput.BUTTON_TYPE_LEFT:
return_code, selectedNode, selectedCoordinateField, selectedGraphics = \
self.nodeIsSelectedAtCoordinates(event.x(), event.y())
if return_code:
self._nodeEditInfo._node = selectedNode
self._nodeEditInfo._coordinateField = selectedCoordinateField
self._nodeEditInfo._graphics = selectedGraphics
self._selection_position_start = (event.x(), event.y())
if self._nodeEditMode:
self._selection_mode = SelectionMode.EDIT_POSITION
else:
attributes = self._nodeEditInfo._graphics.getGraphicspointattributes()
if attributes.isValid():
self._nodeEditInfo._orientationField = attributes.getOrientationScaleField()
if self._nodeEditInfo._orientationField and self._nodeEditInfo._orientationField.isValid():
self._selection_mode = SelectionMode.EDIT_VECTOR
return_code, self._nodeEditInfo._glyphCentre = attributes.getGlyphOffset(3)
return_code, self._nodeEditInfo._glyphSize = attributes.getBaseSize(3)
return_code, self._nodeEditInfo._glyphScaleFactors = attributes.getScaleFactors(3)
self._nodeEditInfo._variableScaleField = attributes.getSignedScaleField()
elif self._nodeCreateMode:
self._selection_mode = SelectionMode.CREATE
else:
SelectionSceneviewerWidget.mousePressEvent(self, event)
def mouseReleaseEvent(self, event):
'''
Inform the scene viewer of a mouse release event.
'''
if not self._ignore_mouse_events and (self._selection_mode == SelectionMode.EDIT_POSITION or \
self._selection_mode == SelectionMode.EDIT_VECTOR):
self._nodeEditInfo.reset()
elif not self._ignore_mouse_events and self._selection_mode == SelectionMode.CREATE:
x = event.x()
y = event.y()
self._selection_box.setVisibilityFlag(False)
if self._createCoordinatesField and self._createCoordinatesField.isValid(
):
self._nodeEditInfo._createCoordinatesField = self._createCoordinatesField
if self._nodeConstrainMode == True:
returnCode, self._nodeEditInfo._nearestElement, self._nodeEditInfo._elementCoordinateField = \
self.getNearestSurfacesElementAndCoordinates(x, y)
if self._nodeEditInfo._nearestElement and self._nodeEditInfo._elementCoordinateField:
self.createNodeAtCoordinates(self._nodeEditInfo, x, y)
else:
self.createNodeAtCoordinates(self._nodeEditInfo, x, y)
self._nodeEditInfo.reset()
else:
SelectionSceneviewerWidget.mouseReleaseEvent(self, event)
self._selection_mode = SelectionMode.NONE
def __init__(self, parent=None, shared=None):
# Selection attributes
SelectionSceneviewerWidget.__init__(self, parent, shared)
self._nodeEditMode = False
self._nodeEditVectorMode = False
self._nodeCreateMode = False
self._nodeConstrainMode = False
self._ignore_mouse_events = False
self._editModifier = QtCore.Qt.CTRL
self._nodeEditInfo = NodeEditInfo()
self._createCoordinatesField = None
def __init__(self, parent=None, shared=None):
# Selection attributes
SelectionSceneviewerWidget.__init__(self, parent, shared)
self._nodeEditMode = False
self._nodeEditVectorMode = False
self._nodeCreateMode = False
self._nodeConstrainMode = False
self._ignore_mouse_events = False
self._editModifier = QtCore.Qt.CTRL
self._nodeEditInfo = NodeEditInfo()
self._createCoordinatesField = None
def mouseMoveEvent(self, event):
'''
Inform the scene viewer of a mouse move event and update the OpenGL scene to reflect this
change to the viewport.
'''
if not self._ignore_mouse_events and self._selection_mode != SelectionMode.NONE:
x = event.x()
y = event.y()
xdiff = float(x - self._selection_position_start[0])
ydiff = float(y - self._selection_position_start[1])
if abs(xdiff) < 0.0001:
xdiff = 1
if abs(ydiff) < 0.0001:
ydiff = 1
if self._selection_mode == SelectionMode.EDIT_POSITION:
if self._nodeConstrainMode == True:
returnCode, self._nodeEditInfo._nearestElement, self._nodeEditInfo._elementCoordinateField = \
self.getNearestSurfacesElementAndCoordinates(x, y)
if self._nodeEditInfo._nearestElement and self._nodeEditInfo._elementCoordinateField:
delta = self.getCoordinatesDelta(
self._nodeEditInfo, x, y)
self.updateSelectedNodesCoordinatesWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
else:
delta = self.getCoordinatesDelta(self._nodeEditInfo, x, y)
self.updateSelectedNodesCoordinatesWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
elif self._selection_mode == SelectionMode.EDIT_VECTOR:
if self._nodeEditInfo._orientationField and self._nodeEditInfo._orientationField.isValid(
):
delta = self.getVectorDelta(self._nodeEditInfo, x, y)
self.updateSelectedNodesVectorWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
else:
SelectionSceneviewerWidget.mouseMoveEvent(self, event)
elif not self._ignore_mouse_events and self._handle_mouse_events:
SelectionSceneviewerWidget.mouseMoveEvent(self, event)
def mousePressEvent(self, event):
'''
Inform the scene viewer of a mouse press event.
'''
self._handle_mouse_events = False # Track when the zinc should be handling mouse events
if not self._ignore_mouse_events and (event.modifiers() & self._editModifier) and \
(self._nodeEditMode or self._nodeEditVectorMode or self._nodeCreateMode) and \
button_map[event.button()] == Sceneviewerinput.BUTTON_TYPE_LEFT:
return_code, selectedNode, selectedCoordinateField, selectedGraphics = \
self.nodeIsSelectedAtCoordinates(event.x(), event.y())
if return_code:
self._nodeEditInfo._node = selectedNode
self._nodeEditInfo._coordinateField = selectedCoordinateField
self._nodeEditInfo._graphics = selectedGraphics
self._selection_position_start = (event.x(), event.y())
if self._nodeEditMode:
self._selection_mode = SelectionMode.EDIT_POSITION
else:
attributes = self._nodeEditInfo._graphics.getGraphicspointattributes(
)
if attributes.isValid():
self._nodeEditInfo._orientationField = attributes.getOrientationScaleField(
)
if self._nodeEditInfo._orientationField and self._nodeEditInfo._orientationField.isValid(
):
self._selection_mode = SelectionMode.EDIT_VECTOR
return_code, self._nodeEditInfo._glyphCentre = attributes.getGlyphOffset(
3)
return_code, self._nodeEditInfo._glyphSize = attributes.getBaseSize(
3)
return_code, self._nodeEditInfo._glyphScaleFactors = attributes.getScaleFactors(
3)
self._nodeEditInfo._variableScaleField = attributes.getSignedScaleField(
)
elif self._nodeCreateMode:
self._selection_mode = SelectionMode.CREATE
else:
SelectionSceneviewerWidget.mousePressEvent(self, event)
def mouseMoveEvent(self, event):
'''
Inform the scene viewer of a mouse move event and update the OpenGL scene to reflect this
change to the viewport.
'''
if not self._ignore_mouse_events and self._selection_mode != SelectionMode.NONE:
x = event.x()
y = event.y()
xdiff = float(x - self._selection_position_start[0])
ydiff = float(y - self._selection_position_start[1])
if abs(xdiff) < 0.0001:
xdiff = 1
if abs(ydiff) < 0.0001:
ydiff = 1
if self._selection_mode == SelectionMode.EDIT_POSITION:
if self._nodeConstrainMode == True:
returnCode, self._nodeEditInfo._nearestElement, self._nodeEditInfo._elementCoordinateField = \
self.getNearestSurfacesElementAndCoordinates(x, y)
if self._nodeEditInfo._nearestElement and self._nodeEditInfo._elementCoordinateField:
delta = self.getCoordinatesDelta(self._nodeEditInfo, x, y)
self.updateSelectedNodesCoordinatesWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
else:
delta = self.getCoordinatesDelta(self._nodeEditInfo, x, y)
self.updateSelectedNodesCoordinatesWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
elif self._selection_mode == SelectionMode.EDIT_VECTOR:
if self._nodeEditInfo._orientationField and self._nodeEditInfo._orientationField.isValid():
delta = self.getVectorDelta(self._nodeEditInfo, x, y)
self.updateSelectedNodesVectorWithDelta(self._nodeEditInfo, \
self._selectionGroup, delta[0], delta[1], delta[2])
else:
SelectionSceneviewerWidget.mouseMoveEvent(self, event)
elif not self._ignore_mouse_events and self._handle_mouse_events:
SelectionSceneviewerWidget.mouseMoveEvent(self, event)
def mouseReleaseEvent(self, event):
'''
Inform the scene viewer of a mouse release event.
'''
if not self._ignore_mouse_events and (self._selection_mode == SelectionMode.EDIT_POSITION or \
self._selection_mode == SelectionMode.EDIT_VECTOR):
self._nodeEditInfo.reset()
elif not self._ignore_mouse_events and self._selection_mode == SelectionMode.CREATE:
x = event.x()
y = event.y()
self._selection_box.setVisibilityFlag(False)
if self._createCoordinatesField and self._createCoordinatesField.isValid():
self._nodeEditInfo._createCoordinatesField = self._createCoordinatesField
if self._nodeConstrainMode == True:
returnCode, self._nodeEditInfo._nearestElement, self._nodeEditInfo._elementCoordinateField = \
self.getNearestSurfacesElementAndCoordinates(x, y)
if self._nodeEditInfo._nearestElement and self._nodeEditInfo._elementCoordinateField:
self.createNodeAtCoordinates(self._nodeEditInfo, x, y)
else:
self.createNodeAtCoordinates(self._nodeEditInfo, x, y)
self._nodeEditInfo.reset()
else:
SelectionSceneviewerWidget.mouseReleaseEvent(self, event)
self._selection_mode = SelectionMode.NONE