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########################################################################
#
# Date: Febuary 2006 Authors: Guillaume Vareille, Michel Sanner
#
# vareille@scripps.edu
# sanner@scripps.edu
#
# The Scripps Research Institute (TSRI)
# Molecular Graphics Lab
# La Jolla, CA 92037, USA
#
# Copyright: Guillaume Vareille, Michel Sanner and TSRI
#
# Revision:
#
#########################################################################
#
# $Header$
#
# $Id$
#
from copy import deepcopy
from opengltk.OpenGL import GL
from DejaVu.Common2d3dObject import Common2d3dObject
class Insert2d(Common2d3dObject):
"""Base class for 2d inserts that can be displayed in a camera
"""
keywords = Common2d3dObject.keywords + [
'transparent',
'anchor',
'position',
'size',
]
def __init__(self, name='insert2d', check=1, **kw):
#print "Insert2d.__init__"
self.anchor = [1, 0] # or 0 - left/top; .5 - center; 1 - right/bottom
self.position = [1, 0] # or 0 - left/top; .5 - center; 1 - right/bottom
self.size = [40, 30] # in pixels
self.polygonContour = None # the list of 2d points (pixels coordinates from bottom left)
# that defines the 2d polygon drawned by Draw()
self.lastPickEventTime = 0
self.isMoving = None # tells what is the current behavior
# the legend can be move (True) or resize (False) or nothing (None)
apply( Common2d3dObject.__init__, (self, name, check), kw)
self.initialAnchor = deepcopy(self.anchor)
self.initialPosition = deepcopy(self.position)
self.initialSize = deepcopy(self.size)
def Set(self, check=1, redo=1, updateOwnGui=True, **kw):
"""set data for this object
check=1 : verify that all the keywords present can be handle by this func
redo=1 : append self to viewer.objectsNeedingRedo
updateOwnGui=True : allow to update owngui at the end this func
"""
#print "Insert2d.Set"
redoFlags = apply( Common2d3dObject.Set, (self, check, 0), kw)
val = kw.pop( 'transparent', None)
if not val is None:
redoFlags |= self._setTransparent(val)
anchor = kw.get( 'anchor')
if anchor \
and (anchor[0] >= 0.) and (anchor[0] <= 1.) \
and (anchor[1] >= 0.) and (anchor[1] <= 1.):
self.anchor = anchor
redoFlags |= self._redoFlags['redoDisplayListFlag']
position = kw.get( 'position')
if position \
and (position[0] >= 0.) and (position[0] <= 1.) \
and (position[1] >= 0.) and (position[1] <= 1.):
self.position = position
redoFlags |= self._redoFlags['redoDisplayListFlag']
size = kw.get( 'size')
if size \
and (size[0] >= 0.) \
and (size[1] >= 0.):
self.size = size
redoFlags |= self._redoFlags['redoDisplayListFlag']
return self.redoNow(redo, updateOwnGui, redoFlags)
def _setTransparent(self, val):
#print "_setTransparent", val
assert val in (False, True)
self.transparent = val
return self._redoFlags['redoDisplayListFlag'] | self._redoFlags['redoViewerDisplayListFlag']
def getState(self, full=1):
"""return a dictionary describing this object's state
This dictionary can be passed to the Set method to restore the object's state
"""
state = Common2d3dObject.getState(self).copy()
state.update( {
'transparent':self.transparent,
'anchor': self.anchor,
'position': self.position,
'size': self.size,
} )
return state
def setViewer(self, viewer, buildDisplayList):
# could be renamed as 'onViewerAddition'
#print "Insert2d.setViewer"
Common2d3dObject.setViewer(self, viewer, buildDisplayList)
self.viewer.AddPickingCallback(self.processHit_cb)
def getTile(self):
#print "Insert2d.getTile"
# compute projection parameters
tr = self.viewer.tileRenderCtx
Left = 0
Right = tr.TileWidth #tr.CurrentTileWidth
Bottom = 0
Top = tr.TileHeight #tr.CurrentTileHeight
left = Left + (Right - Left) \
* (tr.CurrentColumn * tr.TileWidthNB - tr.TileBorder) / float(tr.ImageWidth)
right = left + (Right - Left) * tr.TileWidth / float(tr.ImageWidth)
bottom = Bottom + (Top - Bottom) \
* (tr.CurrentRow * tr.TileHeightNB - tr.TileBorder) / float(tr.ImageHeight)
top = bottom + (Top - Bottom) * tr.TileHeight / float(tr.ImageHeight)
tile = (left, right, bottom, top)
#print "tile", tile
return tile
def Draw(self):
"""set the projection matrices, the subclass must call this in their Draw func,
otherwise tile rendering and stereo won't work
"""
#print "Insert2d.Draw"
GL.glMatrixMode(GL.GL_PROJECTION)
if self.viewer.tileRender:
tile = self.getTile()
GL.glOrtho(float(tile[0]), float(tile[1]), float(tile[2]), float(tile[3]), -1, 1)
else:
GL.glOrtho(0,
float(self.viewer.currentCamera.width),
0,
float(self.viewer.currentCamera.height),
-1, 1)
GL.glMatrixMode(GL.GL_MODELVIEW)
def pickDraw(self):
"""called by the picking process to operate the selection
"""
#print "Insert2d.pickDraw", self
if self.polygonContour is not None:
# we draw just flat quad of the insert2d
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glPushMatrix()
#GL.glLoadIdentity()
GL.glLoadMatrixf(self.viewer.currentCamera.pickMatrix)
GL.glOrtho(0, float(self.viewer.currentCamera.width),
0, float(self.viewer.currentCamera.height), -1, 1)
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glPushMatrix()
GL.glLoadIdentity()
GL.glPolygonMode(GL.GL_FRONT, GL.GL_FILL)
GL.glPushName(0)
GL.glBegin(GL.GL_QUADS)
GL.glVertex2fv(self.polygonContour[0])
GL.glVertex2fv(self.polygonContour[1])
GL.glVertex2fv(self.polygonContour[2])
GL.glVertex2fv(self.polygonContour[3])
GL.glEnd()
GL.glPopName()
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glPopMatrix()
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glPopMatrix()
def setSize(self, event, redo=1):
"""the trackball transmit the translation info
"""
self.size[0] = event.x - self.coord2d[0]
self.size[1] = self.coord2d[1] - event.y
if self.size[0] < 1:
self.size[0] = 1
if self.size[1] < 1:
self.size[1] = 1
if self.size[0] > self.viewer.currentCamera.width:
self.size[0] = self.viewer.currentCamera.width
if self.size[1] > self.viewer.currentCamera.height:
self.size[1] = self.viewer.currentCamera.height
if self.viewer:
self.viewer.objectsNeedingRedo[self] = None
def setPosition(self, event, redo=1):
"""the trackball transmit the translation info
"""
#print "Insert2d.setPosition", event.x, event.y
self.position = [ event.x / float(self.viewer.currentCamera.width),
event.y / float(self.viewer.currentCamera.height)
]
if self.position[0] < 0:
self.position[0] = 0
elif self.position[0] > 1:
self.position[0] = 1
if self.position[1] < 0:
self.position[1] = 0
elif self.position[1] > 1:
self.position[1] = 1
self.viewer.objectsNeedingRedo[self] = None
def calculateAnchorAndPosition(self, event):
insert2dTopLeftFromScreenTopleft0 = self.position[0] * self.viewer.currentCamera.width \
- self.anchor[0] * self.size[0]
insert2dTopLeftFromScreenTopleft1 = self.position[1] * self.viewer.currentCamera.height \
- self.anchor[1] * self.size[1]
#print "insert2dTopLeftFromScreenTopleft", insert2dTopLeftFromScreenTopleft0, insert2dTopLeftFromScreenTopleft1
self.anchor = [ (event.x - insert2dTopLeftFromScreenTopleft0) / float(self.size[0]),
(event.y - insert2dTopLeftFromScreenTopleft1) / float(self.size[1])
]
#print "self.anchor", self.anchor
self.position = [ event.x / float(self.viewer.currentCamera.width),
event.y / float(self.viewer.currentCamera.height)
]
def ResetPosition(self):
self.anchor = deepcopy(self.initialAnchor)
self.position = deepcopy(self.initialPosition)
if self.viewer:
self.viewer.objectsNeedingRedo[self] = None
def ResetSize(self):
#print "ResetSize", self.initialSize
self.size = deepcopy(self.initialSize)
if self.viewer:
self.viewer.objectsNeedingRedo[self] = None
def ResetTransformation(self):
"""Reset the tranformations
"""
self.ResetPosition()
self.ResetSize()
def respondToMouseMove(self, event, redo=1):
"""the trackball transmit the event info
"""
if self.isMoving is not None:
if self.isMoving is True:
self.setPosition(event)
else:
self.setSize(event)
self.viewer.Redraw()
def respondToDoubleClick(self, event):
"""to be overidden
"""
pass
def processHit_cb(self, pick):
#print "Insert2d.processHit_cb", self, (self.viewer==None)
#print "pick",pick
#print "pick.event",dir(pick)
#print "pick.type",pick.type
#print "pick.event",dir(pick.event)
#print "pick.event",pick.event
#print "pick.event.type",pick.event.type
#print "pick.event.state",pick.event.state
#print "pick.event.time",pick.event.time
#print "pick.hits",pick.hits
if ( len(pick.hits) == 1) and pick.hits.has_key(self):
if self.viewer.currentObject != self:
# if the only hit is the legend,
# it becomes the current object
self.viewer.SetCurrentObject(self)
self.isMoving = True
self.calculateAnchorAndPosition(pick.event)
elif pick.event.time - self.lastPickEventTime < 200: #double click
self.viewer.SetCurrentObject(self.viewer.rootObject)
self.respondToDoubleClick(pick.event)
elif pick.hits[self][0][0] == 1:
# the click in inside the resize button
#print "resize"
self.isMoving = False
elif pick.hits[self][0][0] == 0:
# the click in inside the legend but outside
# the resize button
self.isMoving = True
#print "pick.event", pick.event.x, pick.event.y
self.calculateAnchorAndPosition(pick.event)
#print "self.position", self.position
if self.viewer:
self.viewer.objectsNeedingRedo[self] = None
elif self.viewer.currentObject == self:
#print "the insert2d is selected, but picking is outside"
self.isMoving = None
self.viewer.SetCurrentObject(self.viewer.rootObject)
self.lastPickEventTime = pick.event.time
|
