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# Copyright 2008 Nanorex, Inc. See LICENSE file for details.
"""
InsertDna_GraphicsMode.py
Graphics mode class for creating a dna duplex by specifying two line end
points. The duplex can be created on a specified plane or parallel to screen
@author: Ninad
@copyright: 2008 Nanorex, Inc. See LICENSE file for details.
@version:$Id$
History:
Created on 2008-06-24
TODO:
- 2008-06-24: See DnaOrCntPropertyManager class for a detailed to do comment regarding
the tool that allows user to specify a drawing plane.
"""
from PyQt4.Qt import Qt
from dna.temporary_commands.DnaLineMode import DnaLine_GM
from graphics.drawing.drawDnaLabels import draw_dnaBaseNumberLabels
_superclass = DnaLine_GM
class InsertDna_GraphicsMode(DnaLine_GM):
"""
Graphics mode class for creating a dna duplex by specifying two line end
points. The duplex can be created on a specified plane or parallel to screen
@see: Line_GraphicsMode.bareMotion()
@see: Line_GraphicsMode.leftDown()
@see: DnaLine_GM.leftUp()
"""
def _drawLabels(self):
"""
Overrides suoerclass method.
@see: GraphicsMode._drawLabels()
"""
_superclass._drawLabels(self)
draw_dnaBaseNumberLabels(self.glpane)
def update_cursor_for_no_MB(self):
"""
Update the cursor for no mouse button pressed
"""
_superclass.update_cursor_for_no_MB(self)
if self.isSpecifyPlaneToolActive():
self.o.setCursor(self.win.specifyPlaneCursor)
def keyPressEvent(self, event):
"""
Handles keyPressEvent. Overrides superclass method. If delete key
is pressed while the focus is inside the PM list widget, it deletes
that list widget item.
@see: ListWidgetItems_PM_Mixing.listWidgetHasFocus()
@see: InsertDna_PropertyManager.listWidgetHasFocus()
"""
if event.key() == Qt.Key_Delete:
if self.command.listWidgetHasFocus():
self.command.removeListWidgetItems()
return
_superclass.keyPressEvent(self, event)
def jigLeftUp(self, j, event):
"""
Overrides superclass method See that method for more details.
Additional things it does: If the jig is a Plane and if Specify reference
plane tool is enabled (from the Property manager), this method updates
the 'drawing plane' on which the dna duplex will be created.
@see: Select_graphicsmode_MouseHelpers_preMixin.jigLeftUp()
@see: self.self.isSpecifyPlaneToolActive()
"""
if self.isSpecifyPlaneToolActive() and self.glpane.modkeys is None:
if isinstance(j, self.win.assy.Plane):
self.command.updateDrawingPlane(j)
return
_superclass.jigLeftUp(self, j, event)
def isSpecifyPlaneToolActive(self):
"""
Overrides superclass method. Delegates this job to self.command.
@see: InsertDna_EditCommand.isSpecifyPlaneToolActive()
@see: InsertDna_PropertyManager.isSpecifyPlaneToolActive()
@see: self.jigLeftUp()
"""
if self.command:
return self.command.isSpecifyPlaneToolActive()
return False
def getDrawingPlane(self):
"""
Overridden in subclasses.
Returns the reference plane on which the line will be drawn.
The default immplementation returns None.
@see: InsertDna_EditCommand.useSpecifiedDrawingPlane()
@see: Line_GraphicsMode.bareMotion()
@see: Line_GraphicsMode.leftDown()
"""
if self.command.useSpecifiedDrawingPlane():
return self.plane
else:
return None
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