class DirectSession(DirectObject):
# post this to the bboard to make sure DIRECT doesn't turn on
DIRECTdisablePost = 'disableDIRECT'
def __init__(self):
# Establish a global pointer to the direct object early on
# so dependant classes can access it in their code
__builtins__["direct"] = base.direct = self
# These come early since they are used later on
self.group = render.attachNewNode('DIRECT')
self.font = TextNode.getDefaultFont()
self.fEnabled = 0
self.fEnabledLight = 0
self.fScaleWidgetByCam = 0 # [gjeon] flag for scaling widget by distance from the camera
self.drList = DisplayRegionList()
self.iRayList = map(lambda x: x.iRay, self.drList)
self.dr = self.drList[0]
self.camera = base.camera
self.trueCamera = self.camera
self.iRay = self.dr.iRay
self.coaMode = COA_ORIGIN
self.cameraControl = DirectCameraControl()
self.manipulationControl = DirectManipulationControl()
self.useObjectHandles()
self.grid = DirectGrid()
self.grid.disable()
self.lights = DirectLights(base.direct.group)
# Create some default lights
self.lights.createDefaultLights()
# But turn them off
self.lights.allOff()
# Initialize the collection of selected nodePaths
self.selected = SelectedNodePaths()
# Ancestry of currently selected object
self.ancestry = []
self.ancestryIndex = 0
self.activeParent = None
self.selectedNPReadout = OnscreenText.OnscreenText(
pos=(-1.0, -0.9),
bg=Vec4(1, 1, 1, 1),
scale=0.05,
align=TextNode.ALeft,
mayChange=1,
font=self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.selectedNPReadout)
self.selectedNPReadout.reparentTo(hidden)
self.activeParentReadout = OnscreenText.OnscreenText(
pos=(-1.0, -0.975),
bg=Vec4(1, 1, 1, 1),
scale=0.05,
align=TextNode.ALeft,
mayChange=1,
font=self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.activeParentReadout)
self.activeParentReadout.reparentTo(hidden)
self.directMessageReadout = OnscreenText.OnscreenText(
pos=(-1.0, 0.9),
bg=Vec4(1, 1, 1, 1),
scale=0.05,
align=TextNode.ALeft,
mayChange=1,
font=self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.directMessageReadout)
self.directMessageReadout.reparentTo(hidden)
# Create a vrpn client vrpn-server or default
self.deviceManager = None
self.joybox = None
self.radamec = None
self.fastrak = []
if base.config.GetBool('want-vrpn', 0):
from panda3d.direct.directdevices import DirectDeviceManager
self.deviceManager = DirectDeviceManager.DirectDeviceManager()
# Automatically create any devices specified in config file
joybox = base.config.GetString('vrpn-joybox-device', '')
radamec = base.config.GetString('vrpn-radamec-device', '')
fastrak = base.config.GetString('vrpn-fastrak-device', '')
if joybox:
from panda3d.direct.directdevices import DirectJoybox
self.joybox = DirectJoybox.DirectJoybox(joybox)
if radamec:
from panda3d.direct.directdevices import DirectRadamec
self.radamec = DirectRadamec.DirectRadamec(radamec)
if fastrak:
from panda3d.direct.directdevices import DirectFastrak
# parse string into format device:N where N is the sensor name
fastrak = string.split(fastrak)
for i in range(len(fastrak))[1:]:
self.fastrak.append(
DirectFastrak.DirectFastrak(fastrak[0] + ':' +
fastrak[i]))
self.fControl = 0
self.fAlt = 0
self.fShift = 0
self.fMouse1 = 0 # [gjeon] to update alt key information while mouse1 is pressed
self.pos = VBase3()
self.hpr = VBase3()
self.scale = VBase3()
self.hitPt = Point3(0.0)
# Lists for managing undo/redo operations
self.undoList = []
self.redoList = []
# One run through the context task to init everything
self.drList.updateContext()
for dr in self.drList:
dr.camUpdate()
self.actionEvents = [
['select', self.select],
['deselect', self.deselect],
['deselectAll', self.deselectAll],
['highlightAll', self.selected.highlightAll],
['preRemoveNodePath', self.deselect],
# Scene graph explorer functions
['SGE_Select', self.select],
['SGE_Deselect', self.deselect],
['SGE_Set Reparent Target', self.setActiveParent],
['SGE_Reparent', self.reparent],
['SGE_WRT Reparent', lambda np, s=self: s.reparent(np, fWrt=1)],
['SGE_Flash', self.flash],
['SGE_Isolate', self.isolate],
['SGE_Toggle Vis', self.toggleVis],
['SGE_Show All', self.showAllDescendants],
['SGE_Fit', self.fitOnNodePath],
['SGE_Place', Placer.place],
['SGE_Set Color', Slider.rgbPanel],
['SGE_Explore', SceneGraphExplorer.explore],
['SGE_Delete', self.removeNodePath],
['SGE_Set Name', self.getAndSetName],
]
self.modifierEvents = [
'control',
'control-up',
'shift',
'shift-up',
'alt',
'alt-up',
]
self.keyEvents = [
'escape', 'delete', 'page_up', 'page_down', '[', '{', ']', '}',
'shift-a', 'b', 'control-f', 'l', 'shift-l', 'o', 'p', 'r',
'shift-r', 's', 't', 'v', 'w'
]
self.mouseEvents = [
'mouse1',
'mouse1-up',
'shift-mouse1',
'shift-mouse1-up',
'control-mouse1',
'control-mouse1-up',
'alt-mouse1',
'alt-mouse1-up',
'mouse2',
'mouse2-up',
'shift-mouse2',
'shift-mouse2-up',
'control-mouse2',
'control-mouse2-up',
'alt-mouse2',
'alt-mouse2-up',
'mouse3',
'mouse3-up',
'shift-mouse3',
'shift-mouse3-up',
'control-mouse3',
'control-mouse3-up',
'alt-mouse3',
'alt-mouse3-up',
]
self.passThroughKeys = [
'v', 'b', 'l', 'p', 'r', 'shift-r', 's', 't', 'shift-a', 'w'
]
if base.wantTk:
from panda3d.direct.showbase import TkGlobal
from panda3d.direct.tkpanels import DirectSessionPanel
self.panel = DirectSessionPanel.DirectSessionPanel(parent=tkroot)
try:
# Has the clusterMode been set externally (i.e. via the
# bootstrap application?
self.clusterMode = clusterMode
except NameError:
# Has the clusterMode been set via a config variable?
self.clusterMode = base.config.GetString("cluster-mode", '')
if self.clusterMode == 'client':
self.cluster = createClusterClient()
elif self.clusterMode == 'server':
self.cluster = ClusterServer(base.camera, base.cam)
else:
self.cluster = DummyClusterClient()
__builtins__['cluster'] = self.cluster
def addPassThroughKey(self, key):
self.passThroughKeys.append(key)
def enable(self):
# don't enable DIRECT if someone has posted DIRECTdisablePost
if bboard.has(DirectSession.DIRECTdisablePost):
return
if self.fEnabled:
return
# Make sure old tasks are shut down
self.disable()
# Start all display region context tasks
self.drList.spawnContextTask()
if not self.fEnabledLight:
# Turn on mouse Flying
self.cameraControl.enableMouseFly()
# Turn on object manipulation
self.manipulationControl.enableManipulation()
# Make sure list of selected items is reset
self.selected.reset()
# Accept appropriate hooks
if not self.fEnabledLight:
self.enableKeyEvents()
self.enableMouseEvents()
self.enableActionEvents()
self.enableModifierEvents()
# Set flag
self.fEnabled = 1
def enableLight(self):
self.fEnabledLight = 1
self.enable()
def disable(self):
# Shut down all display region context tasks
self.drList.removeContextTask()
# Turn off camera fly
self.cameraControl.disableMouseFly()
# Turn off object manipulation
self.deselectAll()
self.manipulationControl.disableManipulation()
self.disableKeyEvents()
self.disableModifierEvents()
self.disableMouseEvents()
self.disableActionEvents()
# Kill tasks
taskMgr.remove('flashNodePath')
taskMgr.remove('hideDirectMessage')
taskMgr.remove('hideDirectMessageLater')
# Set flag
self.fEnabled = 0
def toggleDirect(self):
if self.fEnabled:
self.disable()
else:
self.enable()
def minimumConfiguration(self):
# Remove context task
self.drList.removeContextTask()
# Turn off camera fly
self.cameraControl.disableMouseFly()
# Ignore keyboard and action events
self.disableKeyEvents()
self.disableActionEvents()
# But let mouse events pass through
self.enableMouseEvents()
self.enableModifierEvents()
def oobe(self):
# If oobeMode was never set, set it to false and create the
# structures we need to implement OOBE.
try:
self.oobeMode
except:
self.oobeMode = 0
self.oobeCamera = hidden.attachNewNode('oobeCamera')
self.oobeVis = loader.loadModel('models/misc/camera')
if self.oobeVis:
self.oobeVis.node().setFinal(1)
if self.oobeMode:
# Position a target point to lerp the oobe camera to
base.direct.cameraControl.camManipRef.iPosHpr(self.trueCamera)
t = self.oobeCamera.lerpPosHpr(
Point3(0),
Vec3(0),
2.0,
other=base.direct.cameraControl.camManipRef,
task='manipulateCamera',
blendType='easeInOut')
# When move is done, switch to oobe mode
t.setUponDeath(self.endOOBE)
else:
# Place camera marker at true camera location
self.oobeVis.reparentTo(self.trueCamera)
# Remove any transformation on the models arc
self.oobeVis.clearMat()
# Make oobeCamera be a sibling of wherever camera is now.
cameraParent = self.camera.getParent()
# Prepare oobe camera
self.oobeCamera.reparentTo(cameraParent)
self.oobeCamera.iPosHpr(self.trueCamera)
# Put camera under new oobe camera
base.cam.reparentTo(self.oobeCamera)
# Position a target point to lerp the oobe camera to
base.direct.cameraControl.camManipRef.setPos(
self.trueCamera, Vec3(-2, -20, 5))
base.direct.cameraControl.camManipRef.lookAt(self.trueCamera)
t = self.oobeCamera.lerpPosHpr(
Point3(0),
Vec3(0),
2.0,
other=base.direct.cameraControl.camManipRef,
task='manipulateCamera',
blendType='easeInOut')
# When move is done, switch to oobe mode
t.setUponDeath(self.beginOOBE)
def beginOOBE(self, state):
# Make sure we've reached our final destination
self.oobeCamera.iPosHpr(base.direct.cameraControl.camManipRef)
base.direct.camera = self.oobeCamera
self.oobeMode = 1
def endOOBE(self, state):
# Make sure we've reached our final destination
self.oobeCamera.iPosHpr(self.trueCamera)
# Disable OOBE mode.
base.cam.reparentTo(self.trueCamera)
base.direct.camera = self.trueCamera
# Get rid of ancillary node paths
self.oobeVis.reparentTo(hidden)
self.oobeCamera.reparentTo(hidden)
self.oobeMode = 0
def destroy(self):
self.disable()
def reset(self):
self.enable()
# EVENT FUNCTIONS
def enableActionEvents(self):
for event in self.actionEvents:
self.accept(event[0], event[1], extraArgs=event[2:])
def enableModifierEvents(self):
for event in self.modifierEvents:
self.accept(event, self.inputHandler, [event])
def enableKeyEvents(self):
for event in self.keyEvents:
self.accept(event, self.inputHandler, [event])
def enableMouseEvents(self):
for event in self.mouseEvents:
self.accept(event, self.inputHandler, [event])
def disableActionEvents(self):
for event, method in self.actionEvents:
self.ignore(event)
def disableModifierEvents(self):
for event in self.modifierEvents:
self.ignore(event)
def disableKeyEvents(self):
for event in self.keyEvents:
self.ignore(event)
def disableMouseEvents(self):
for event in self.mouseEvents:
self.ignore(event)
def inputHandler(self, input):
# Deal with keyboard and mouse input
if input == 'mouse1-up':
self.fMouse1 = 0 # [gjeon] to update alt key information while mouse1 is pressed
messenger.send('DIRECT-mouse1Up')
elif input.find('mouse1') != -1:
self.fMouse1 = 1 # [gjeon] to update alt key information while mouse1 is pressed
modifiers = self.getModifiers(input, 'mouse1')
messenger.send('DIRECT-mouse1', sentArgs=[modifiers])
elif input == 'mouse2-up':
messenger.send('DIRECT-mouse2Up')
elif input.find('mouse2') != -1:
modifiers = self.getModifiers(input, 'mouse2')
messenger.send('DIRECT-mouse2', sentArgs=[modifiers])
elif input == 'mouse3-up':
messenger.send('DIRECT-mouse3Up')
elif input.find('mouse3') != -1:
modifiers = self.getModifiers(input, 'mouse3')
messenger.send('DIRECT-mouse3', sentArgs=[modifiers])
elif input == 'shift':
self.fShift = 1
elif input == 'shift-up':
self.fShift = 0
elif input == 'control':
self.fControl = 1
# [gjeon] to update control key information while mouse1 is pressed
if self.fMouse1:
modifiers = DIRECT_NO_MOD
modifiers |= DIRECT_CONTROL_MOD
messenger.send('DIRECT-mouse1', sentArgs=[modifiers])
elif input == 'control-up':
self.fControl = 0
elif input == 'alt':
self.fAlt = 1
# [gjeon] to update alt key information while mouse1 is pressed
if self.fMouse1:
modifiers = DIRECT_NO_MOD
modifiers |= DIRECT_ALT_MOD
messenger.send('DIRECT-mouse1', sentArgs=[modifiers])
elif input == 'alt-up':
self.fAlt = 0
elif input == 'page_up':
self.upAncestry()
elif input == 'page_down':
self.downAncestry()
elif input == 'escape':
self.deselectAll()
elif input == 'delete':
self.removeAllSelected()
elif input == 'v':
self.toggleWidgetVis()
elif input == 'b':
base.toggleBackface()
elif input == 'control-f':
self.flash(last)
elif input == 'l':
self.lights.toggle()
elif input == 'shift-l':
self.cameraControl.toggleCOALock()
elif input == 'o':
self.oobe()
elif input == 'p':
if self.selected.last:
self.setActiveParent(self.selected.last)
elif input == 'r':
# Do wrt reparent
if self.selected.last:
self.reparent(self.selected.last, fWrt=1)
elif input == 'shift-r':
# Do regular reparent
if self.selected.last:
self.reparent(self.selected.last)
elif input == 's':
if self.selected.last:
self.select(self.selected.last)
elif input == 't':
base.toggleTexture()
elif input == 'shift-a':
self.selected.toggleVisAll()
elif input == 'w':
base.toggleWireframe()
elif (input == '[') or (input == '{'):
self.undo()
elif (input == ']') or (input == '}'):
self.redo()
#Pass along certain events if this display is a cluster client
if self.clusterMode == 'client':
if input in self.passThroughKeys:
self.cluster('messenger.send("%s")' % input, 0)
def getModifiers(self, input, base):
modifiers = DIRECT_NO_MOD
modifierString = input[:input.find(base)]
if modifierString.find('shift') != -1:
modifiers |= DIRECT_SHIFT_MOD
if modifierString.find('control') != -1:
modifiers |= DIRECT_CONTROL_MOD
if modifierString.find('alt') != -1:
modifiers |= DIRECT_ALT_MOD
return modifiers
def gotShift(self, modifiers):
return modifiers & DIRECT_SHIFT_MOD
def gotControl(self, modifiers):
return modifiers & DIRECT_CONTROL_MOD
def gotAlt(self, modifiers):
return modifiers & DIRECT_ALT_MOD
def setFScaleWidgetByCam(self, flag):
self.fScaleWidgetByCam = flag
if flag:
taskMgr.add(self.widgetResizeTask, 'DIRECTWidgetResize')
else:
taskMgr.remove('DIRECTWidgetResize')
def widgetResizeTask(self, state):
if not taskMgr.hasTaskNamed('resizeObjectHandles'):
dnp = self.selected.last
if dnp:
nodeCamDist = Vec3(dnp.getPos(direct.camera)).length()
sf = 0.075 * nodeCamDist * math.tan(
deg2Rad(direct.drList.getCurrentDr().fovV))
self.widget.setDirectScalingFactor(sf)
return Task.cont
def select(self, nodePath, fMultiSelect=0, fSelectTag=1, fResetAncestry=1):
dnp = self.selected.select(nodePath, fMultiSelect, fSelectTag)
if dnp:
messenger.send('DIRECT_preSelectNodePath', [dnp])
if fResetAncestry:
# Update ancestry
self.ancestry = dnp.getAncestors()
self.ancestryIndex = 0
# Update the selectedNPReadout
self.selectedNPReadout.reparentTo(aspect2d)
self.selectedNPReadout.setText('Selected:' + dnp.getName())
# Show the manipulation widget
self.widget.showWidget()
editTypes = self.manipulationControl.getEditTypes([dnp])
if (editTypes & EDIT_TYPE_UNEDITABLE == EDIT_TYPE_UNEDITABLE):
self.manipulationControl.disableWidgetMove()
else:
self.manipulationControl.enableWidgetMove()
# Update camera controls coa to this point
# Coa2Camera = Coa2Dnp * Dnp2Camera
mCoa2Camera = dnp.mCoa2Dnp * dnp.getMat(self.camera)
row = mCoa2Camera.getRow(3)
coa = Vec3(row[0], row[1], row[2])
self.cameraControl.updateCoa(coa)
# Adjust widgets size
# This uses the additional scaling factor used to grow and
# shrink the widget
if not self.fScaleWidgetByCam: # [gjeon] for not scaling widget by distance from camera
self.widget.setScalingFactor(dnp.getRadius())
# Spawn task to have object handles follow the selected object
taskMgr.remove('followSelectedNodePath')
t = Task.Task(self.followSelectedNodePathTask)
t.dnp = dnp
taskMgr.add(t, 'followSelectedNodePath')
# Send an message marking the event
messenger.send('DIRECT_selectedNodePath', [dnp])
messenger.send('DIRECT_selectedNodePath_fMulti_fTag',
[dnp, fMultiSelect, fSelectTag])
def followSelectedNodePathTask(self, state):
mCoa2Render = state.dnp.mCoa2Dnp * state.dnp.getMat(render)
decomposeMatrix(mCoa2Render, self.scale, self.hpr, self.pos, CSDefault)
self.widget.setPosHpr(self.pos, self.hpr)
return Task.cont
def deselect(self, nodePath):
dnp = self.selected.deselect(nodePath)
if dnp:
# Hide the manipulation widget
self.widget.hideWidget()
self.selectedNPReadout.reparentTo(hidden)
self.selectedNPReadout.setText(' ')
taskMgr.remove('followSelectedNodePath')
self.ancestry = []
# Send an message marking the event
messenger.send('DIRECT_deselectedNodePath', [dnp])
def deselectAll(self):
self.selected.deselectAll()
# Hide the manipulation widget
self.widget.hideWidget()
self.selectedNPReadout.reparentTo(hidden)
self.selectedNPReadout.setText(' ')
taskMgr.remove('followSelectedNodePath')
def setActiveParent(self, nodePath=None):
# Record new parent
self.activeParent = nodePath
# Update the activeParentReadout
self.activeParentReadout.reparentTo(aspect2d)
self.activeParentReadout.setText('Active Reparent Target:' +
nodePath.getName())
# Alert everyone else
messenger.send('DIRECT_activeParent', [self.activeParent])
def reparent(self, nodePath=None, fWrt=0):
if (nodePath and self.activeParent
and self.isNotCycle(nodePath, self.activeParent)):
oldParent = nodePath.getParent()
if fWrt:
nodePath.wrtReparentTo(self.activeParent)
else:
nodePath.reparentTo(self.activeParent)
# Alert everyone else
messenger.send('DIRECT_reparent',
[nodePath, oldParent, self.activeParent])
# [gjeon] for others who needs fWrt information
messenger.send('DIRECT_reparent_fWrt',
[nodePath, oldParent, self.activeParent, fWrt])
def isNotCycle(self, nodePath, parent):
if nodePath.id() == parent.id():
print 'DIRECT.reparent: Invalid parent'
return 0
elif parent.hasParent():
return self.isNotCycle(nodePath, parent.getParent())
else:
return 1
def flash(self, nodePath='None Given'):
""" Highlight an object by setting it red for a few seconds """
# Clean up any existing task
taskMgr.remove('flashNodePath')
# Spawn new task if appropriate
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
if nodePath.hasColor():
doneColor = nodePath.getColor()
flashColor = VBase4(1) - doneColor
flashColor.setW(1)
else:
doneColor = None
flashColor = VBase4(1, 0, 0, 1)
# Temporarily set node path color
nodePath.setColor(flashColor)
# Clean up color in a few seconds
t = taskMgr.doMethodLater(
DIRECT_FLASH_DURATION,
# This is just a dummy task
self.flashDummy,
'flashNodePath',
)
t.nodePath = nodePath
t.doneColor = doneColor
# This really does all the work
t.setUponDeath(self.flashDone)
def flashDummy(self, state):
# Real work is done in upon death function
return Task.done
def flashDone(self, state):
# Return node Path to original state
if state.nodePath.isEmpty():
# Node path doesn't exist anymore, bail
return
if state.doneColor:
state.nodePath.setColor(state.doneColor)
else:
state.nodePath.clearColor()
def fitOnNodePath(self, nodePath='None Given'):
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
base.direct.select(nodePath)
def fitTask(state, self=self):
self.cameraControl.fitOnWidget()
return Task.done
taskMgr.doMethodLater(0.1, fitTask, 'manipulateCamera')
def isolate(self, nodePath='None Given'):
""" Show a node path and hide its siblings """
# First kill the flashing task to avoid complications
taskMgr.remove('flashNodePath')
# Use currently selected node path if node selected
if nodePath == 'None Given':
nodePath = self.selected.last
# Do we have a node path?
if nodePath:
# Yes, show everything in level
self.showAllDescendants(nodePath.getParent())
# Now hide all of this node path's siblings
nodePath.hideSiblings()
def toggleVis(self, nodePath='None Given'):
""" Toggle visibility of node path """
# First kill the flashing task to avoid complications
taskMgr.remove('flashNodePath')
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
# Now toggle node path's visibility state
nodePath.toggleVis()
def removeNodePath(self, nodePath='None Given'):
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
nodePath.remove()
def removeAllSelected(self):
self.selected.removeAll()
def showAllDescendants(self, nodePath=render):
""" Show the level and its descendants """
nodePath.showAllDescendants()
nodePath.hideCS()
def upAncestry(self):
if self.ancestry:
l = len(self.ancestry)
i = self.ancestryIndex + 1
if i < l:
np = self.ancestry[i]
name = np.getName()
if (name != 'render') and (name != 'renderTop'):
self.ancestryIndex = i
self.select(np, 0, 0)
self.flash(np)
def downAncestry(self):
if self.ancestry:
l = len(self.ancestry)
i = self.ancestryIndex - 1
if i >= 0:
np = self.ancestry[i]
name = np.getName()
if (name != 'render') and (name != 'renderTop'):
self.ancestryIndex = i
self.select(np, 0, 0)
self.flash(np)
def getAndSetName(self, nodePath):
""" Prompt user for new node path name """
from tkSimpleDialog import askstring
newName = askstring('Node Path: ' + nodePath.getName(),
'Enter new name:')
if newName:
nodePath.setName(newName)
messenger.send('DIRECT_nodePathSetName', [nodePath, newName])
# UNDO REDO FUNCTIONS
def pushUndo(self, nodePathList, fResetRedo=1):
# Assemble group of changes
undoGroup = []
for nodePath in nodePathList:
t = nodePath.getTransform()
undoGroup.append([nodePath, t])
# Now record group
self.undoList.append(undoGroup)
# Truncate list
self.undoList = self.undoList[-25:]
# Alert anyone who cares
messenger.send('DIRECT_pushUndo')
if fResetRedo and (nodePathList != []):
self.redoList = []
messenger.send('DIRECT_redoListEmpty')
def popUndoGroup(self):
# Get last item
undoGroup = self.undoList[-1]
# Strip last item off of undo list
self.undoList = self.undoList[:-1]
# Update state of undo button
if not self.undoList:
messenger.send('DIRECT_undoListEmpty')
# Return last item
return undoGroup
def pushRedo(self, nodePathList):
# Assemble group of changes
redoGroup = []
for nodePath in nodePathList:
t = nodePath.getTransform()
redoGroup.append([nodePath, t])
# Now record redo group
self.redoList.append(redoGroup)
# Truncate list
self.redoList = self.redoList[-25:]
# Alert anyone who cares
messenger.send('DIRECT_pushRedo')
def popRedoGroup(self):
# Get last item
redoGroup = self.redoList[-1]
# Strip last item off of redo list
self.redoList = self.redoList[:-1]
# Update state of redo button
if not self.redoList:
messenger.send('DIRECT_redoListEmpty')
# Return last item
return redoGroup
def undo(self):
if self.undoList:
# Get last item off of redo list
undoGroup = self.popUndoGroup()
# Record redo information
nodePathList = map(lambda x: x[0], undoGroup)
self.pushRedo(nodePathList)
# Now undo xform for group
for pose in undoGroup:
# Undo xform
pose[0].setTransform(pose[1])
# Alert anyone who cares
messenger.send('DIRECT_undo', [nodePathList])
def redo(self):
if self.redoList:
# Get last item off of redo list
redoGroup = self.popRedoGroup()
# Record undo information
nodePathList = map(lambda x: x[0], redoGroup)
self.pushUndo(nodePathList, fResetRedo=0)
# Redo xform
for pose in redoGroup:
pose[0].setTransform(pose[1])
# Alert anyone who cares
messenger.send('DIRECT_redo', [nodePathList])
# UTILITY FUNCTIONS
def message(self, text):
taskMgr.remove('hideDirectMessage')
taskMgr.remove('hideDirectMessageLater')
self.directMessageReadout.reparentTo(aspect2d)
self.directMessageReadout.setText(text)
self.hideDirectMessageLater()
def hideDirectMessageLater(self):
taskMgr.doMethodLater(3.0, self.hideDirectMessage, 'hideDirectMessage')
def hideDirectMessage(self, state):
self.directMessageReadout.reparentTo(hidden)
return Task.done
def useObjectHandles(self):
self.widget = self.manipulationControl.objectHandles
self.widget.reparentTo(base.direct.group)
def hideSelectedNPReadout(self):
self.selectedNPReadout.reparentTo(hidden)
def hideActiveParentReadout(self):
self.activeParentReadout.reparentTo(hidden)
def toggleWidgetVis(self):
self.widget.toggleWidget()
def setCOAMode(self, mode):
self.coaMode = mode
def isEnabled(self):
return self.fEnabled
def addUnpickable(self, item):
for iRay in self.iRayList:
iRay.addUnpickable(item)
def removeUnpickable(self, item):
for iRay in self.iRayList:
iRay.removeUnpickable(item)
class DirectSession(DirectObject):
# post this to the bboard to make sure DIRECT doesn't turn on
DIRECTdisablePost = 'disableDIRECT'
def __init__(self):
# Establish a global pointer to the direct object early on
# so dependant classes can access it in their code
__builtins__["direct"] = base.direct = self
# These come early since they are used later on
self.group = render.attachNewNode('DIRECT')
self.font = TextNode.getDefaultFont()
self.fEnabled = 0
self.fEnabledLight = 0
self.drList = DisplayRegionList()
self.iRayList = map(lambda x: x.iRay, self.drList)
self.dr = self.drList[0]
self.camera = base.camera
self.trueCamera = self.camera
self.iRay = self.dr.iRay
self.coaMode = COA_ORIGIN
self.cameraControl = DirectCameraControl()
self.manipulationControl = DirectManipulationControl()
self.useObjectHandles()
self.grid = DirectGrid()
self.grid.disable()
self.lights = DirectLights(base.direct.group)
# Create some default lights
self.lights.createDefaultLights()
# But turn them off
self.lights.allOff()
# Initialize the collection of selected nodePaths
self.selected = SelectedNodePaths()
# Ancestry of currently selected object
self.ancestry = []
self.ancestryIndex = 0
self.activeParent = None
self.selectedNPReadout = OnscreenText.OnscreenText(
pos = (-1.0, -0.9), bg=Vec4(1, 1, 1, 1),
scale = 0.05, align = TextNode.ALeft,
mayChange = 1, font = self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.selectedNPReadout)
self.selectedNPReadout.reparentTo(hidden)
self.activeParentReadout = OnscreenText.OnscreenText(
pos = (-1.0, -0.975), bg=Vec4(1, 1, 1, 1),
scale = 0.05, align = TextNode.ALeft,
mayChange = 1, font = self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.activeParentReadout)
self.activeParentReadout.reparentTo(hidden)
self.directMessageReadout = OnscreenText.OnscreenText(
pos = (-1.0, 0.9), bg=Vec4(1, 1, 1, 1),
scale = 0.05, align = TextNode.ALeft,
mayChange = 1, font = self.font)
# Make sure readout is never lit or drawn in wireframe
useDirectRenderStyle(self.directMessageReadout)
self.directMessageReadout.reparentTo(hidden)
# Create a vrpn client vrpn-server or default
self.deviceManager = None
self.joybox = None
self.radamec = None
self.fastrak = []
if base.config.GetBool('want-vrpn', 0):
from direct.directdevices import DirectDeviceManager
self.deviceManager = DirectDeviceManager.DirectDeviceManager()
# Automatically create any devices specified in config file
joybox = base.config.GetString('vrpn-joybox-device', '')
radamec = base.config.GetString('vrpn-radamec-device', '')
fastrak = base.config.GetString('vrpn-fastrak-device', '')
if joybox:
from direct.directdevices import DirectJoybox
self.joybox = DirectJoybox.DirectJoybox(joybox)
if radamec:
from direct.directdevices import DirectRadamec
self.radamec = DirectRadamec.DirectRadamec(radamec)
if fastrak:
from direct.directdevices import DirectFastrak
# parse string into format device:N where N is the sensor name
fastrak = string.split(fastrak)
for i in range(len(fastrak))[1:]:
self.fastrak.append(DirectFastrak.DirectFastrak(fastrak[0] + ':' + fastrak[i]))
self.fControl = 0
self.fAlt = 0
self.fShift = 0
self.pos = VBase3()
self.hpr = VBase3()
self.scale = VBase3()
self.hitPt = Point3(0.0)
# Lists for managing undo/redo operations
self.undoList = []
self.redoList = []
# One run through the context task to init everything
self.drList.updateContext()
for dr in self.drList:
dr.camUpdate()
self.actionEvents = [
['select', self.select],
['deselect', self.deselect],
['deselectAll', self.deselectAll],
['highlightAll', self.selected.highlightAll],
['preRemoveNodePath', self.deselect],
# Scene graph explorer functions
['SGE_Select', self.select],
['SGE_Deselect', self.deselect],
['SGE_Set Reparent Target', self.setActiveParent],
['SGE_Reparent', self.reparent],
['SGE_WRT Reparent', lambda np, s=self: s.reparent(np, fWrt = 1)],
['SGE_Flash', self.flash],
['SGE_Isolate', self.isolate],
['SGE_Toggle Vis', self.toggleVis],
['SGE_Show All', self.showAllDescendants],
['SGE_Fit', self.fitOnNodePath],
['SGE_Place', Placer.place],
['SGE_Set Color', Slider.rgbPanel],
['SGE_Explore', SceneGraphExplorer.explore],
['SGE_Delete', self.removeNodePath],
['SGE_Set Name', self.getAndSetName],
]
self.modifierEvents = ['control', 'control-up',
'shift', 'shift-up',
'alt', 'alt-up',
]
self.keyEvents = ['escape', 'delete', 'page_up', 'page_down',
'[', '{', ']', '}',
'shift-a', 'b', 'control-f',
'l', 'shift-l', 'o', 'p', 'r',
'shift-r', 's', 't', 'v', 'w']
self.mouseEvents = ['mouse1', 'mouse1-up',
'shift-mouse1', 'shift-mouse1-up',
'control-mouse1', 'control-mouse1-up',
'alt-mouse1', 'alt-mouse1-up',
'mouse2', 'mouse2-up',
'shift-mouse2', 'shift-mouse2-up',
'control-mouse2', 'control-mouse2-up',
'alt-mouse2', 'alt-mouse2-up',
'mouse3', 'mouse3-up',
'shift-mouse3', 'shift-mouse3-up',
'control-mouse3', 'control-mouse3-up',
'alt-mouse3', 'alt-mouse3-up',
]
if base.wantTk:
from direct.showbase import TkGlobal
from direct.tkpanels import DirectSessionPanel
self.panel = DirectSessionPanel.DirectSessionPanel(parent = tkroot)
try:
# Has the clusterMode been set externally (i.e. via the
# bootstrap application?
self.clusterMode = clusterMode
except NameError:
# Has the clusterMode been set via a config variable?
self.clusterMode = base.config.GetString("cluster-mode", '')
if self.clusterMode == 'client':
self.cluster = createClusterClient()
elif self.clusterMode == 'server':
self.cluster = ClusterServer(base.camera, base.cam)
else:
self.cluster = DummyClusterClient()
__builtins__['cluster'] = self.cluster
def enable(self):
# don't enable DIRECT if someone has posted DIRECTdisablePost
if bboard.has(DirectSession.DIRECTdisablePost):
return
if self.fEnabled:
return
# Make sure old tasks are shut down
self.disable()
# Start all display region context tasks
self.drList.spawnContextTask()
if not self.fEnabledLight:
# Turn on mouse Flying
self.cameraControl.enableMouseFly()
# Turn on object manipulation
self.manipulationControl.enableManipulation()
# Make sure list of selected items is reset
self.selected.reset()
# Accept appropriate hooks
if not self.fEnabledLight:
self.enableKeyEvents()
self.enableMouseEvents()
self.enableActionEvents()
self.enableModifierEvents()
# Set flag
self.fEnabled = 1
def enableLight(self):
self.fEnabledLight = 1
self.enable()
def disable(self):
# Shut down all display region context tasks
self.drList.removeContextTask()
# Turn off camera fly
self.cameraControl.disableMouseFly()
# Turn off object manipulation
self.deselectAll()
self.manipulationControl.disableManipulation()
self.disableKeyEvents()
self.disableModifierEvents()
self.disableMouseEvents()
self.disableActionEvents()
# Kill tasks
taskMgr.remove('flashNodePath')
taskMgr.remove('hideDirectMessage')
taskMgr.remove('hideDirectMessageLater')
# Set flag
self.fEnabled = 0
def toggleDirect(self):
if self.fEnabled:
self.disable()
else:
self.enable()
def minimumConfiguration(self):
# Remove context task
self.drList.removeContextTask()
# Turn off camera fly
self.cameraControl.disableMouseFly()
# Ignore keyboard and action events
self.disableKeyEvents()
self.disableActionEvents()
# But let mouse events pass through
self.enableMouseEvents()
self.enableModifierEvents()
def oobe(self):
# If oobeMode was never set, set it to false and create the
# structures we need to implement OOBE.
try:
self.oobeMode
except:
self.oobeMode = 0
self.oobeCamera = hidden.attachNewNode('oobeCamera')
self.oobeVis = loader.loadModelOnce('models/misc/camera')
if self.oobeVis:
self.oobeVis.node().setFinal(1)
if self.oobeMode:
# Position a target point to lerp the oobe camera to
base.direct.cameraControl.camManipRef.iPosHpr(self.trueCamera)
t = self.oobeCamera.lerpPosHpr(
Point3(0), Vec3(0), 2.0,
other = base.direct.cameraControl.camManipRef,
task = 'manipulateCamera',
blendType = 'easeInOut')
# When move is done, switch to oobe mode
t.uponDeath = self.endOOBE
else:
# Place camera marker at true camera location
self.oobeVis.reparentTo(self.trueCamera)
# Remove any transformation on the models arc
self.oobeVis.clearMat()
# Make oobeCamera be a sibling of wherever camera is now.
cameraParent = self.camera.getParent()
# Prepare oobe camera
self.oobeCamera.reparentTo(cameraParent)
self.oobeCamera.iPosHpr(self.trueCamera)
# Put camera under new oobe camera
base.cam.reparentTo(self.oobeCamera)
# Position a target point to lerp the oobe camera to
base.direct.cameraControl.camManipRef.setPos(
self.trueCamera, Vec3(-2, -20, 5))
base.direct.cameraControl.camManipRef.lookAt(self.trueCamera)
t = self.oobeCamera.lerpPosHpr(
Point3(0), Vec3(0), 2.0,
other = base.direct.cameraControl.camManipRef,
task = 'manipulateCamera',
blendType = 'easeInOut')
# When move is done, switch to oobe mode
t.uponDeath = self.beginOOBE
def beginOOBE(self, state):
# Make sure we've reached our final destination
self.oobeCamera.iPosHpr(base.direct.cameraControl.camManipRef)
base.direct.camera = self.oobeCamera
self.oobeMode = 1
def endOOBE(self, state):
# Make sure we've reached our final destination
self.oobeCamera.iPosHpr(self.trueCamera)
# Disable OOBE mode.
base.cam.reparentTo(self.trueCamera)
base.direct.camera = self.trueCamera
# Get rid of ancillary node paths
self.oobeVis.reparentTo(hidden)
self.oobeCamera.reparentTo(hidden)
self.oobeMode = 0
def destroy(self):
self.disable()
def reset(self):
self.enable()
# EVENT FUNCTIONS
def enableActionEvents(self):
for event in self.actionEvents:
self.accept(event[0], event[1], extraArgs = event[2:])
def enableModifierEvents(self):
for event in self.modifierEvents:
self.accept(event, self.inputHandler, [event])
def enableKeyEvents(self):
for event in self.keyEvents:
self.accept(event, self.inputHandler, [event])
def enableMouseEvents(self):
for event in self.mouseEvents:
self.accept(event, self.inputHandler, [event])
def disableActionEvents(self):
for event, method in self.actionEvents:
self.ignore(event)
def disableModifierEvents(self):
for event in self.modifierEvents:
self.ignore(event)
def disableKeyEvents(self):
for event in self.keyEvents:
self.ignore(event)
def disableMouseEvents(self):
for event in self.mouseEvents:
self.ignore(event)
def inputHandler(self, input):
# Deal with keyboard and mouse input
if input == 'mouse1-up':
messenger.send('DIRECT-mouse1Up')
elif input.find('mouse1') != -1:
modifiers = self.getModifiers(input, 'mouse1')
messenger.send('DIRECT-mouse1', sentArgs = [modifiers])
elif input == 'mouse2-up':
messenger.send('DIRECT-mouse2Up')
elif input.find('mouse2') != -1:
modifiers = self.getModifiers(input, 'mouse2')
messenger.send('DIRECT-mouse2', sentArgs = [modifiers])
elif input == 'mouse3-up':
messenger.send('DIRECT-mouse3Up')
elif input.find('mouse3') != -1:
modifiers = self.getModifiers(input, 'mouse3')
messenger.send('DIRECT-mouse3', sentArgs = [modifiers])
elif input == 'shift':
self.fShift = 1
elif input == 'shift-up':
self.fShift = 0
elif input == 'control':
self.fControl = 1
elif input == 'control-up':
self.fControl = 0
elif input == 'alt':
self.fAlt = 1
elif input == 'alt-up':
self.fAlt = 0
elif input == 'page_up':
self.upAncestry()
elif input == 'page_down':
self.downAncestry()
elif input == 'escape':
self.deselectAll()
elif input == 'delete':
self.removeAllSelected()
elif input == 'v':
self.toggleWidgetVis()
elif input == 'b':
base.toggleBackface()
elif input == 'control-f':
self.flash(last)
elif input == 'l':
self.lights.toggle()
elif input == 'shift-l':
self.cameraControl.toggleCOALock()
elif input == 'o':
self.oobe()
elif input == 'p':
if self.selected.last:
self.setActiveParent(self.selected.last)
elif input == 'r':
# Do wrt reparent
if self.selected.last:
self.reparent(self.selected.last, fWrt = 1)
elif input == 'shift-r':
# Do regular reparent
if self.selected.last:
self.reparent(self.selected.last)
elif input == 's':
if self.selected.last:
self.select(self.selected.last)
elif input == 't':
base.toggleTexture()
elif input == 'shift-a':
self.selected.toggleVisAll()
elif input == 'w':
base.toggleWireframe()
elif (input == '[') or (input == '{'):
self.undo()
elif (input == ']') or (input == '}'):
self.redo()
#Pass along certain events if this display is a cluster client
if self.clusterMode == 'client':
if input in ('v','b','l','p', 'r', 'shift-r', 's', 't',
'shift-a', 'w'):
self.cluster('messenger.send("%s")' % input, 0)
def getModifiers(self, input, base):
modifiers = DIRECT_NO_MOD
modifierString = input[: input.find(base)]
if modifierString.find('shift') != -1:
modifiers |= DIRECT_SHIFT_MOD
if modifierString.find('control') != -1:
modifiers |= DIRECT_CONTROL_MOD
if modifierString.find('alt') != -1:
modifiers |= DIRECT_ALT_MOD
return modifiers
def gotShift(self, modifiers):
return modifiers & DIRECT_SHIFT_MOD
def gotControl(self, modifiers):
return modifiers & DIRECT_CONTROL_MOD
def gotAlt(self, modifiers):
return modifiers & DIRECT_ALT_MOD
def select(self, nodePath, fMultiSelect = 0,
fSelectTag = 1, fResetAncestry = 1):
dnp = self.selected.select(nodePath, fMultiSelect, fSelectTag)
if dnp:
messenger.send('DIRECT_preSelectNodePath', [dnp])
if fResetAncestry:
# Update ancestry
self.ancestry = dnp.getAncestry()
self.ancestry.reverse()
self.ancestryIndex = 0
# Update the selectedNPReadout
self.selectedNPReadout.reparentTo(aspect2d)
self.selectedNPReadout.setText(
'Selected:' + dnp.getName())
# Show the manipulation widget
self.widget.showWidget()
# Update camera controls coa to this point
# Coa2Camera = Coa2Dnp * Dnp2Camera
mCoa2Camera = dnp.mCoa2Dnp * dnp.getMat(self.camera)
row = mCoa2Camera.getRow(3)
coa = Vec3(row[0], row[1], row[2])
self.cameraControl.updateCoa(coa)
# Adjust widgets size
# This uses the additional scaling factor used to grow and
# shrink the widget
self.widget.setScalingFactor(dnp.getRadius())
# Spawn task to have object handles follow the selected object
taskMgr.remove('followSelectedNodePath')
t = Task.Task(self.followSelectedNodePathTask)
t.dnp = dnp
taskMgr.add(t, 'followSelectedNodePath')
# Send an message marking the event
messenger.send('DIRECT_selectedNodePath', [dnp])
def followSelectedNodePathTask(self, state):
mCoa2Render = state.dnp.mCoa2Dnp * state.dnp.getMat(render)
decomposeMatrix(mCoa2Render,
self.scale, self.hpr, self.pos,
CSDefault)
self.widget.setPosHpr(self.pos, self.hpr)
return Task.cont
def deselect(self, nodePath):
dnp = self.selected.deselect(nodePath)
if dnp:
# Hide the manipulation widget
self.widget.hideWidget()
self.selectedNPReadout.reparentTo(hidden)
self.selectedNPReadout.setText(' ')
taskMgr.remove('followSelectedNodePath')
self.ancestry = []
# Send an message marking the event
messenger.send('DIRECT_deselectedNodePath', [dnp])
def deselectAll(self):
self.selected.deselectAll()
# Hide the manipulation widget
self.widget.hideWidget()
self.selectedNPReadout.reparentTo(hidden)
self.selectedNPReadout.setText(' ')
taskMgr.remove('followSelectedNodePath')
def setActiveParent(self, nodePath = None):
# Record new parent
self.activeParent = nodePath
# Update the activeParentReadout
self.activeParentReadout.reparentTo(aspect2d)
self.activeParentReadout.setText(
'Active Reparent Target:' + nodePath.getName())
# Alert everyone else
messenger.send('DIRECT_activeParent', [self.activeParent])
def reparent(self, nodePath = None, fWrt = 0):
if (nodePath and self.activeParent and
self.isNotCycle(nodePath, self.activeParent)):
oldParent = nodePath.getParent()
if fWrt:
nodePath.wrtReparentTo(self.activeParent)
else:
nodePath.reparentTo(self.activeParent)
# Alert everyone else
messenger.send('DIRECT_reparent',
[nodePath, oldParent, self.activeParent])
def isNotCycle(self, nodePath, parent):
if nodePath.id() == parent.id():
print 'DIRECT.reparent: Invalid parent'
return 0
elif parent.hasParent():
return self.isNotCycle(nodePath, parent.getParent())
else:
return 1
def flash(self, nodePath = 'None Given'):
""" Highlight an object by setting it red for a few seconds """
# Clean up any existing task
taskMgr.remove('flashNodePath')
# Spawn new task if appropriate
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
if nodePath.hasColor():
doneColor = nodePath.getColor()
flashColor = VBase4(1) - doneColor
flashColor.setW(1)
else:
doneColor = None
flashColor = VBase4(1, 0, 0, 1)
# Temporarily set node path color
nodePath.setColor(flashColor)
# Clean up color in a few seconds
t = taskMgr.doMethodLater(DIRECT_FLASH_DURATION,
# This is just a dummy task
self.flashDummy,
'flashNodePath')
t.nodePath = nodePath
t.doneColor = doneColor
# This really does all the work
t.uponDeath = self.flashDone
def flashDummy(self, state):
# Real work is done in upon death function
return Task.done
def flashDone(self, state):
# Return node Path to original state
if state.nodePath.isEmpty():
# Node path doesn't exist anymore, bail
return
if state.doneColor:
state.nodePath.setColor(state.doneColor)
else:
state.nodePath.clearColor()
def fitOnNodePath(self, nodePath = 'None Given'):
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
base.direct.select(nodePath)
def fitTask(state, self = self):
self.cameraControl.fitOnWidget()
return Task.done
taskMgr.doMethodLater(0.1, fitTask, 'manipulateCamera')
def isolate(self, nodePath = 'None Given'):
""" Show a node path and hide its siblings """
# First kill the flashing task to avoid complications
taskMgr.remove('flashNodePath')
# Use currently selected node path if node selected
if nodePath == 'None Given':
nodePath = self.selected.last
# Do we have a node path?
if nodePath:
# Yes, show everything in level
self.showAllDescendants(nodePath.getParent())
# Now hide all of this node path's siblings
nodePath.hideSiblings()
def toggleVis(self, nodePath = 'None Given'):
""" Toggle visibility of node path """
# First kill the flashing task to avoid complications
taskMgr.remove('flashNodePath')
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
# Now toggle node path's visibility state
nodePath.toggleVis()
def removeNodePath(self, nodePath = 'None Given'):
if nodePath == 'None Given':
# If nothing specified, try selected node path
nodePath = self.selected.last
if nodePath:
nodePath.remove()
def removeAllSelected(self):
self.selected.removeAll()
def showAllDescendants(self, nodePath = render):
""" Show the level and its descendants """
nodePath.showAllDescendants()
nodePath.hideCS()
def upAncestry(self):
if self.ancestry:
l = len(self.ancestry)
i = self.ancestryIndex + 1
if i < l:
np = self.ancestry[i]
name = np.getName()
if (name != 'render') and (name != 'renderTop'):
self.ancestryIndex = i
self.select(np, 0, 0)
self.flash(np)
def downAncestry(self):
if self.ancestry:
l = len(self.ancestry)
i = self.ancestryIndex - 1
if i >= 0:
np = self.ancestry[i]
name = np.getName()
if (name != 'render') and (name != 'renderTop'):
self.ancestryIndex = i
self.select(np, 0, 0)
self.flash(np)
def getAndSetName(self, nodePath):
""" Prompt user for new node path name """
from tkSimpleDialog import askstring
newName = askstring('Node Path: ' + nodePath.getName(),
'Enter new name:')
if newName:
nodePath.setName(newName)
messenger.send('DIRECT_nodePathSetName', [nodePath, newName])
# UNDO REDO FUNCTIONS
def pushUndo(self, nodePathList, fResetRedo = 1):
# Assemble group of changes
undoGroup = []
for nodePath in nodePathList:
t = nodePath.getTransform()
undoGroup.append([nodePath, t])
# Now record group
self.undoList.append(undoGroup)
# Truncate list
self.undoList = self.undoList[-25:]
# Alert anyone who cares
messenger.send('DIRECT_pushUndo')
if fResetRedo and (nodePathList != []):
self.redoList = []
messenger.send('DIRECT_redoListEmpty')
def popUndoGroup(self):
# Get last item
undoGroup = self.undoList[-1]
# Strip last item off of undo list
self.undoList = self.undoList[:-1]
# Update state of undo button
if not self.undoList:
messenger.send('DIRECT_undoListEmpty')
# Return last item
return undoGroup
def pushRedo(self, nodePathList):
# Assemble group of changes
redoGroup = []
for nodePath in nodePathList:
t = nodePath.getTransform()
redoGroup.append([nodePath, t])
# Now record redo group
self.redoList.append(redoGroup)
# Truncate list
self.redoList = self.redoList[-25:]
# Alert anyone who cares
messenger.send('DIRECT_pushRedo')
def popRedoGroup(self):
# Get last item
redoGroup = self.redoList[-1]
# Strip last item off of redo list
self.redoList = self.redoList[:-1]
# Update state of redo button
if not self.redoList:
messenger.send('DIRECT_redoListEmpty')
# Return last item
return redoGroup
def undo(self):
if self.undoList:
# Get last item off of redo list
undoGroup = self.popUndoGroup()
# Record redo information
nodePathList = map(lambda x: x[0], undoGroup)
self.pushRedo(nodePathList)
# Now undo xform for group
for pose in undoGroup:
# Undo xform
pose[0].setTransform(pose[1])
# Alert anyone who cares
messenger.send('DIRECT_undo', [nodePathList])
def redo(self):
if self.redoList:
# Get last item off of redo list
redoGroup = self.popRedoGroup()
# Record undo information
nodePathList = map(lambda x: x[0], redoGroup)
self.pushUndo(nodePathList, fResetRedo = 0)
# Redo xform
for pose in redoGroup:
pose[0].setTransform(pose[1])
# Alert anyone who cares
messenger.send('DIRECT_redo', [nodePathList])
# UTILITY FUNCTIONS
def message(self, text):
taskMgr.remove('hideDirectMessage')
taskMgr.remove('hideDirectMessageLater')
self.directMessageReadout.reparentTo(aspect2d)
self.directMessageReadout.setText(text)
self.hideDirectMessageLater()
def hideDirectMessageLater(self):
taskMgr.doMethodLater(3.0, self.hideDirectMessage, 'hideDirectMessage')
def hideDirectMessage(self, state):
self.directMessageReadout.reparentTo(hidden)
return Task.done
def useObjectHandles(self):
self.widget = self.manipulationControl.objectHandles
self.widget.reparentTo(base.direct.group)
def hideSelectedNPReadout(self):
self.selectedNPReadout.reparentTo(hidden)
def hideActiveParentReadout(self):
self.activeParentReadout.reparentTo(hidden)
def toggleWidgetVis(self):
self.widget.toggleWidget()
def setCOAMode(self, mode):
self.coaMode = mode
def isEnabled(self):
return self.fEnabled
def addUnpickable(self, item):
for iRay in self.iRayList:
iRay.addUnpickable(item)
def removeUnpickable(self, item):
for iRay in self.iRayList:
iRay.removeUnpickable(item)
