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# Copyright 2008 Nanorex, Inc. See LICENSE file for details.
"""
BuildNanotube_GraphicsMode.py
@author: Ninad, Mark
@copyright: 2008 Nanorex, Inc. See LICENSE file for details.
@version:$Id$
History:
TODO as of 2008-05-06:
Needs Refactoring. It was originally duplicated from BuildDna_GraphicsMode
(for an experimental implementation of new Nanotube command)
There needs to be a common superclass for Build'Structure' mode and
all the edit structure modes (commands) such as DnaSegment,
DnaStrand_GraphicsMode, EditNanotube_GraphicsMode etc
"""
from commands.SelectChunks.SelectChunks_GraphicsMode import SelectChunks_GraphicsMode
from cnt.model.NanotubeSegment import NanotubeSegment
from commands.Select.Select_GraphicsMode import DRAG_STICKINESS_LIMIT
DEBUG_CLICK_ON_OBJECT_ENTERS_ITS_EDIT_COMMAND = True
_superclass = SelectChunks_GraphicsMode
class BuildNanotube_GraphicsMode(SelectChunks_GraphicsMode):
"""
Graphics mode for the Build Nanotube command.
"""
def chunkLeftUp(self, aChunk, event):
"""
Upon chunkLeftUp, it enters the nanotube edit command.
This is an alternative implementation. As of 2008-03-03,
we have decided to change this implementation. Keeping the
related methods alive if, in future, we want to switch to this
implementation and/or add a user preference to do this.
"""
_superclass.chunkLeftUp(self, aChunk, event)
if self.glpane.modkeys is not None:
#Don't go further if some modkey is pressed. We will call the
#edit method of the nanotube only if no modifier key is
#pressed
return
if not self.mouse_within_stickiness_limit(event, DRAG_STICKINESS_LIMIT):
return
#@TODO: If the object under mouse was double clicked, don't enter the
#edit mode, instead do appropriate operation such as expand selection or
#contract selection (done in superclass)
#Note: when the object is just single clicked, it becomes editable).
if self.editObjectOnSingleClick():
if aChunk.picked:
segmentGroup = aChunk.parent_node_of_class(NanotubeSegment)
if segmentGroup is not None:
segmentGroup.edit()
return
def editObjectOnSingleClick(self):
"""
Subclasses can override this method. If this method returns True,
when you left click on a DnaSegment or a DnaStrand, it becomes editable
(i.e. program enters the edit command of that particular object if
that object is editable)
@see: MakeCrossover_GraphicsMode.editObjectOnSingleClick()
"""
if DEBUG_CLICK_ON_OBJECT_ENTERS_ITS_EDIT_COMMAND:
return True
return False
def _drawCursorText(self):
"""
Draw the text near the cursor. It gives information about length of
the nanotube.
"""
if hasattr(self.command, 'grabbedHandle') and \
hasattr(self.command, 'getCursorText'):
if self.command.grabbedHandle is not None:
#Draw the text next to the cursor that gives info about
#nanotube length, etc.
text , textColor = self.command.getCursorText()
self.glpane.renderTextNearCursor(text,
offset = 30,
textColor = textColor)
pass
pass
return
pass
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