Source code for direct.gui.DirectGuiBase

Base class for all DirectGui items.  Handles composite widgets and
command line argument parsing.

Code overview:

1)  Each widget defines a set of options (optiondefs) as a list of tuples
    of the form ``('name', defaultValue, handler)``.
    'name' is the name of the option (used during construction of configure)
    handler can be: None, method, or INITOPT.  If a method is specified, it
    will be called during widget construction (via initialiseoptions), if the
    Handler is specified as an INITOPT, this is an option that can only be set
    during widget construction.

2)  :func:`~DirectGuiBase.defineoptions` is called.  defineoption creates:

    self._constructorKeywords = { keyword: [value, useFlag] }
        A dictionary of the keyword options specified as part of the
        constructor keywords can be of the form 'component_option', where
        component is the name of a widget's component, a component group or a
        component alias.

        A list of group names for which it is permissible to specify options
        before components of that group are created.
        If a widget is a derived class the order of execution would be::

          foo.optiondefs = {}
               fooParent.optiondefs = {}

3)  :func:`~DirectGuiBase.addoptions` is called.  This combines options
    specified as keywords to the widget constructor (stored in
    self._constructorKeywords) with the default options (stored in optiondefs).
    Results are stored in
    ``self._optionInfo = { keyword: [default, current, handler] }``.
    If a keyword is of the form 'component_option' it is left in the
    self._constructorKeywords dictionary (for use by component constructors),
    otherwise it is 'used', and deleted from self._constructorKeywords.


    - constructor keywords override the defaults.
    - derived class default values override parent class defaults
    - derived class handler functions override parent class functions

4)  Superclass initialization methods are called (resulting in nested calls
    to define options (see 2 above)

5)  Widget components are created via calls to
    :func:`~DirectGuiBase.createcomponent`.  User can specify aliases and groups
    for each component created.

    Aliases are alternate names for components, e.g. a widget may have a
    component with a name 'entryField', which itself may have a component
    named 'entry', you could add an alias 'entry' for the 'entryField_entry'
    These are stored in self.__componentAliases.  If an alias is found,
    all keyword entries which use that alias are expanded to their full
    form (to avoid conversion later)

    Groups allow option specifications that apply to all members of the group.
    If a widget has components: 'text1', 'text2', and 'text3' which all belong
    to the 'text' group, they can be all configured with keywords of the form:
    'text_keyword' (e.g. ``text_font='comic.rgb'``).  A component's group
    is stored as the fourth element of its entry in self.__componentInfo.

    Note: the widget constructors have access to all remaining keywords in
    _constructorKeywords (those not transferred to _optionInfo by
    define/addoptions).  If a component defines an alias that applies to
    one of the keywords, that keyword is replaced with a new keyword with
    the alias expanded.

    If a keyword (or substituted alias keyword) is used during creation of the
    component, it is deleted from self._constructorKeywords.  If a group
    keyword applies to the component, that keyword is marked as used, but is
    not deleted from self._constructorKeywords, in case it applies to another
    component.  If any constructor keywords remain at the end of component
    construction (and initialisation), an error is raised.

5)  :func:`~DirectGuiBase.initialiseoptions` is called.  This method calls any
    option handlers to respond to any keyword/default values, then checks to
    see if any keywords are left unused.  If so, an error is raised.

__all__ = ['DirectGuiBase', 'DirectGuiWidget']

from panda3d.core import *
from direct.showbase import ShowBaseGlobal
from direct.showbase.ShowBase import ShowBase
from . import DirectGuiGlobals as DGG
from .OnscreenText import *
from .OnscreenGeom import *
from .OnscreenImage import *
from direct.directtools.DirectUtil import ROUND_TO
from direct.showbase import DirectObject
from direct.task import Task
import sys

if sys.version_info >= (3, 0):
    stringType = str
    stringType = basestring

guiObjectCollector = PStatCollector("Client::GuiObjects")

[docs]class DirectGuiBase(DirectObject.DirectObject): """Base class of all DirectGUI widgets."""
[docs] def __init__(self): # Default id of all gui object, subclasses should override this self.guiId = 'guiObject' # List of all post initialization functions self.postInitialiseFuncList = [] # To avoid doing things redundantly during initialisation self.fInit = 1 # Mapping from each megawidget option to a list of information # about the option # - default value # - current value # - function to call when the option is initialised in the # call to initialiseoptions() in the constructor or # modified via configure(). If this is INITOPT, the # option is an initialisation option (an option that can # be set by the call to the constructor but can not be # used with configure). # This mapping is not initialised here, but in the call to # defineoptions() which precedes construction of this base class. # # self._optionInfo = {} # Mapping from each component name to a tuple of information # about the component. # - component widget instance # - configure function of widget instance # - the class of the widget (Frame, EntryField, etc) # - cget function of widget instance # - the name of the component group of this component, if any self.__componentInfo = {} # Mapping from alias names to the names of components or # sub-components. self.__componentAliases = {}
# Contains information about the keywords provided to the # constructor. It is a mapping from the keyword to a tuple # containing: # - value of keyword # - a boolean indicating if the keyword has been used. # A keyword is used if, during the construction of a megawidget, # - it is defined in a call to defineoptions() or addoptions(), or # - it references, by name, a component of the megawidget, or # - it references, by group, at least one component # At the end of megawidget construction, a call is made to # initialiseoptions() which reports an error if there are # unused options given to the constructor. # # self._constructorKeywords = {} # List of dynamic component groups. If a group is included in # this list, then it not an error if a keyword argument for # the group is given to the constructor or to configure(), but # no components with this group have been created. # self._dynamicGroups = ()
[docs] def defineoptions(self, keywords, optionDefs, dynamicGroups = ()): """ defineoptions(keywords, optionDefs, dynamicGroups = {}) """ # Create options, providing the default value and the method # to call when the value is changed. If any option created by # base classes has the same name as one in <optionDefs>, the # base class's value and function will be overriden. # keywords is a dictionary of keyword/value pairs from the constructor # optionDefs is a dictionary of default options for the widget # dynamicGroups is a tuple of component groups for which you can # specify options even though no components of this group have # been created # This should be called before the constructor of the base # class, so that default values defined in the derived class # override those in the base class. if not hasattr(self, '_constructorKeywords'): tmp = {} for option, value in keywords.items(): tmp[option] = [value, 0] self._constructorKeywords = tmp self._optionInfo = {} # Initialize dictionary of dynamic groups if not hasattr(self, '_dynamicGroups'): self._dynamicGroups = () self._dynamicGroups = self._dynamicGroups + tuple(dynamicGroups) # Reconcile command line and default options self.addoptions(optionDefs, keywords)
[docs] def addoptions(self, optionDefs, optionkeywords): """ addoptions(optionDefs) - add option def to option info """ # Add additional options, providing the default value and the # method to call when the value is changed. See # "defineoptions" for more details # optimisations: optionInfo = self._optionInfo optionInfo_has_key = optionInfo.__contains__ keywords = self._constructorKeywords keywords_has_key = keywords.__contains__ FUNCTION = DGG._OPT_FUNCTION for name, default, function in optionDefs: if '_' not in name: default = optionkeywords.get(name, default) # The option will already exist if it has been defined # in a derived class. In this case, do not override the # default value of the option or the callback function # if it is not None. if not optionInfo_has_key(name): if keywords_has_key(name): # Overridden by keyword, use keyword value value = keywords[name][0] optionInfo[name] = [default, value, function] # Delete it from self._constructorKeywords del keywords[name] else: # Use optionDefs value optionInfo[name] = [default, default, function] elif optionInfo[name][FUNCTION] is None: # Only override function if not defined by derived class optionInfo[name][FUNCTION] = function else: # This option is of the form "component_option". If this is # not already defined in self._constructorKeywords add it. # This allows a derived class to override the default value # of an option of a component of a base class. if not keywords_has_key(name): keywords[name] = [default, 0]
[docs] def initialiseoptions(self, myClass): """ Call all initialisation functions to initialize widget options to default of keyword value """ # This is to make sure this method class is only called by # the most specific class in the class hierarchy if self.__class__ is myClass: # Call the configuration callback function for every option. FUNCTION = DGG._OPT_FUNCTION self.fInit = 1 for info in self._optionInfo.values(): func = info[FUNCTION] if func is not None and func is not DGG.INITOPT: func() self.fInit = 0 # Now check if anything is left over unusedOptions = [] keywords = self._constructorKeywords for name in keywords: used = keywords[name][1] if not used: # This keyword argument has not been used. If it # does not refer to a dynamic group, mark it as # unused. index = name.find('_') if index < 0 or name[:index] not in self._dynamicGroups: unusedOptions.append(name) self._constructorKeywords = {} if len(unusedOptions) > 0: if len(unusedOptions) == 1: text = 'Unknown option "' else: text = 'Unknown options "' raise KeyError(text + ', '.join(unusedOptions) + \ '" for ' + myClass.__name__) # Can now call post init func self.postInitialiseFunc()
[docs] def postInitialiseFunc(self): for func in self.postInitialiseFuncList: func()
[docs] def isinitoption(self, option): """ Is this opition one that can only be specified at construction? """ return self._optionInfo[option][DGG._OPT_FUNCTION] is DGG.INITOPT
[docs] def options(self): """ Print out a list of available widget options. Does not include subcomponent options. """ options = [] if hasattr(self, '_optionInfo'): for option, info in self._optionInfo.items(): isinit = info[DGG._OPT_FUNCTION] is DGG.INITOPT default = info[DGG._OPT_DEFAULT] options.append((option, default, isinit)) options.sort() return options
[docs] def configure(self, option=None, **kw): """ configure(option = None) Query or configure the megawidget options. """ # # If not empty, *kw* is a dictionary giving new # values for some of the options of this gui item # For options defined for this widget, set # the value of the option to the new value and call the # configuration callback function, if any. # # If *option* is None, return all gui item configuration # options and settings. Options are returned as standard 3 # element tuples # # If *option* is a string, return the 3 element tuple for the # given configuration option. # First, deal with the option queries. if len(kw) == 0: # This configure call is querying the values of one or all options. # Return 3-tuples: # (optionName, default, value) if option is None: rtn = {} for option, config in self._optionInfo.items(): rtn[option] = (option, config[DGG._OPT_DEFAULT], config[DGG._OPT_VALUE]) return rtn else: config = self._optionInfo[option] return (option, config[DGG._OPT_DEFAULT], config[DGG._OPT_VALUE]) # optimizations: optionInfo = self._optionInfo optionInfo_has_key = optionInfo.__contains__ componentInfo = self.__componentInfo componentInfo_has_key = componentInfo.__contains__ componentAliases = self.__componentAliases componentAliases_has_key = componentAliases.__contains__ VALUE = DGG._OPT_VALUE FUNCTION = DGG._OPT_FUNCTION # This will contain a list of options in *kw* which # are known to this gui item. directOptions = [] # This will contain information about the options in # *kw* of the form <component>_<option>, where # <component> is a component of this megawidget. It is a # dictionary whose keys are the configure method of each # component and whose values are a dictionary of options and # values for the component. indirectOptions = {} indirectOptions_has_key = indirectOptions.__contains__ for option, value in kw.items(): if optionInfo_has_key(option): # This is one of the options of this gui item. # Check it is an initialisation option. if optionInfo[option][FUNCTION] is DGG.INITOPT: print('Cannot configure initialisation option "' \ + option + '" for ' + self.__class__.__name__) break #raise KeyError, \ # 'Cannot configure initialisation option "' \ # + option + '" for ' + self.__class__.__name__ optionInfo[option][VALUE] = value directOptions.append(option) else: index = option.find('_') if index >= 0: # This option may be of the form <component>_<option>. # e.g. if alias ('efEntry', 'entryField_entry') # and option = efEntry_width # component = efEntry, componentOption = width component = option[:index] componentOption = option[(index + 1):] # Expand component alias if componentAliases_has_key(component): # component = entryField, subcomponent = entry component, subComponent = componentAliases[component] if subComponent is not None: # componentOption becomes entry_width componentOption = subComponent + '_' \ + componentOption # Expand option string to write on error # option = entryField_entry_width option = component + '_' + componentOption # Does this component exist if componentInfo_has_key(component): # Get the configure func for the named component # component = entryField componentConfigFuncs = [componentInfo[component][1]] else: # Check if this is a group name and configure all # components in the group. componentConfigFuncs = [] # For each component for info in componentInfo.values(): # Check if it is a member of this group if info[4] == component: # Yes, append its config func componentConfigFuncs.append(info[1]) if len(componentConfigFuncs) == 0 and \ component not in self._dynamicGroups: raise KeyError('Unknown option "' + option + \ '" for ' + self.__class__.__name__) # Add the configure method(s) (may be more than # one if this is configuring a component group) # and option/value to dictionary. for componentConfigFunc in componentConfigFuncs: if not indirectOptions_has_key(componentConfigFunc): indirectOptions[componentConfigFunc] = {} # Create a dictionary of keyword/values keyed # on configuration function indirectOptions[componentConfigFunc][componentOption] \ = value else: raise KeyError('Unknown option "' + option + \ '" for ' + self.__class__.__name__) # Call the configure methods for any components. # Pass in the dictionary of keyword/values created above for func, options in indirectOptions.items(): func(**options) # Call the configuration callback function for each option. for option in directOptions: info = optionInfo[option] func = info[DGG._OPT_FUNCTION] if func is not None: func()
# Allow index style references def __setitem__(self, key, value): self.configure(**{key: value})
[docs] def cget(self, option): """ Get current configuration setting for this option """ # Return the value of an option, for example myWidget['font']. if option in self._optionInfo: return self._optionInfo[option][DGG._OPT_VALUE] else: index = option.find('_') if index >= 0: component = option[:index] componentOption = option[(index + 1):] # Expand component alias if component in self.__componentAliases: component, subComponent = self.__componentAliases[ component] if subComponent is not None: componentOption = subComponent + '_' + componentOption # Expand option string to write on error option = component + '_' + componentOption if component in self.__componentInfo: # Call cget on the component. componentCget = self.__componentInfo[component][3] return componentCget(componentOption) else: # If this is a group name, call cget for one of # the components in the group. for info in self.__componentInfo.values(): if info[4] == component: componentCget = info[3] return componentCget(componentOption) # Option not found raise KeyError('Unknown option "' + option + \ '" for ' + self.__class__.__name__)
# Allow index style refererences __getitem__ = cget
[docs] def createcomponent(self, componentName, componentAliases, componentGroup, widgetClass, *widgetArgs, **kw): """ Create a component (during construction or later) for this widget. """ # Check for invalid component name if '_' in componentName: raise ValueError('Component name "%s" must not contain "_"' % componentName) # Get construction keywords if hasattr(self, '_constructorKeywords'): keywords = self._constructorKeywords else: keywords = {} for alias, component in componentAliases: # Create aliases to the component and its sub-components. index = component.find('_') if index < 0: # Just a shorter name for one of this widget's components self.__componentAliases[alias] = (component, None) else: # An alias for a component of one of this widget's components mainComponent = component[:index] subComponent = component[(index + 1):] self.__componentAliases[alias] = (mainComponent, subComponent) # Remove aliases from the constructor keyword arguments by # replacing any keyword arguments that begin with *alias* # with corresponding keys beginning with *component*. alias = alias + '_' aliasLen = len(alias) for option in keywords.copy(): if len(option) > aliasLen and option[:aliasLen] == alias: newkey = component + '_' + option[aliasLen:] keywords[newkey] = keywords[option] del keywords[option] # Find any keyword arguments for this component componentPrefix = componentName + '_' nameLen = len(componentPrefix) # First, walk through the option list looking for arguments # than refer to this component's group. for option in keywords: # Check if this keyword argument refers to the group # of this component. If so, add this to the options # to use when constructing the widget. Mark the # keyword argument as being used, but do not remove it # since it may be required when creating another # component. index = option.find('_') if index >= 0 and componentGroup == option[:index]: rest = option[(index + 1):] kw[rest] = keywords[option][0] keywords[option][1] = 1 # Now that we've got the group arguments, walk through the # option list again and get out the arguments that refer to # this component specifically by name. These are more # specific than the group arguments, above; we walk through # the list afterwards so they will override. for option in keywords.copy(): if len(option) > nameLen and option[:nameLen] == componentPrefix: # The keyword argument refers to this component, so add # this to the options to use when constructing the widget. kw[option[nameLen:]] = keywords[option][0] # And delete it from main construction keywords del keywords[option] # Return None if no widget class is specified if widgetClass is None: return None # Get arguments for widget constructor if len(widgetArgs) == 1 and type(widgetArgs[0]) == tuple: # Arguments to the constructor can be specified as either # multiple trailing arguments to createcomponent() or as a # single tuple argument. widgetArgs = widgetArgs[0] # Create the widget widget = widgetClass(*widgetArgs, **kw) componentClass = widget.__class__.__name__ self.__componentInfo[componentName] = (widget, widget.configure, componentClass, widget.cget, componentGroup) return widget
[docs] def component(self, name): # Return a component widget of the megawidget given the # component's name # This allows the user of a megawidget to access and configure # widget components directly. # Find the main component and any subcomponents index = name.find('_') if index < 0: component = name remainingComponents = None else: component = name[:index] remainingComponents = name[(index + 1):] # Expand component alias # Example entry which is an alias for entryField_entry if component in self.__componentAliases: # component = entryField, subComponent = entry component, subComponent = self.__componentAliases[component] if subComponent is not None: if remainingComponents is None: # remainingComponents = entry remainingComponents = subComponent else: remainingComponents = subComponent + '_' \ + remainingComponents # Get the component from __componentInfo dictionary widget = self.__componentInfo[component][0] if remainingComponents is None: # Not looking for subcomponent return widget else: # Recursive call on subcomponent return widget.component(remainingComponents)
[docs] def components(self): # Return a list of all components. names = list(self.__componentInfo.keys()) names.sort() return names
[docs] def hascomponent(self, component): return component in self.__componentInfo
[docs] def destroycomponent(self, name): # Remove a megawidget component. # This command is for use by megawidget designers to destroy a # megawidget component. self.__componentInfo[name][0].destroy() del self.__componentInfo[name]
[docs] def destroy(self): # Clean out any hooks self.ignoreAll() del self._optionInfo del self.__componentInfo del self.postInitialiseFuncList
[docs] def bind(self, event, command, extraArgs = []): """ Bind the command (which should expect one arg) to the specified event (such as ENTER, EXIT, B1PRESS, B1CLICK, etc.) See DirectGuiGlobals for possible events """ # Need to tack on gui item specific id gEvent = event + self.guiId if ShowBaseGlobal.config.GetBool('debug-directgui-msgs', False): from direct.showbase.PythonUtil import StackTrace print(gEvent) print(StackTrace()) self.accept(gEvent, command, extraArgs = extraArgs)
[docs] def unbind(self, event): """ Unbind the specified event """ # Need to tack on gui item specific id gEvent = event + self.guiId self.ignore(gEvent)
[docs]def toggleGuiGridSnap(): DirectGuiWidget.snapToGrid = 1 - DirectGuiWidget.snapToGrid
[docs]def setGuiGridSpacing(spacing): DirectGuiWidget.gridSpacing = spacing
[docs]class DirectGuiWidget(DirectGuiBase, NodePath): # Toggle if you wish widget's to snap to grid when draggin snapToGrid = 0 gridSpacing = 0.05 # Determine the default initial state for inactive (or # unclickable) components. If we are in edit mode, these are # actually clickable by default. guiEdit = ShowBaseGlobal.config.GetBool('direct-gui-edit', False) if guiEdit: inactiveInitState = DGG.NORMAL else: inactiveInitState = DGG.DISABLED guiDict = {}
[docs] def __init__(self, parent = None, **kw): # Direct gui widgets are node paths # Direct gui widgets have: # - stateNodePaths (to hold visible representation of widget) # State node paths can have: # - a frame of type (None, FLAT, RAISED, GROOVE, RIDGE) # - arbitrary geometry for each state # They inherit from DirectGuiWidget # - Can create components (with aliases and groups) # - Can bind to mouse events # They inherit from NodePath # - Can position/scale them optiondefs = ( # Widget's constructor ('pgFunc', PGItem, None), ('numStates', 1, None), ('invertedFrames', (), None), ('sortOrder', 0, None), # Widget's initial state ('state', DGG.NORMAL, self.setState), # Widget's frame characteristics ('relief', DGG.FLAT, self.setRelief), ('borderWidth', (.1, .1), self.setBorderWidth), ('borderUvWidth', (.1, .1), self.setBorderUvWidth), ('frameSize', None, self.setFrameSize), ('frameColor', (.8, .8, .8, 1), self.setFrameColor), ('frameTexture', None, self.setFrameTexture), ('frameVisibleScale', (1, 1), self.setFrameVisibleScale), ('pad', (0, 0), self.resetFrameSize), # Override button id (beware! your name may not be unique!) ('guiId', None, DGG.INITOPT), # Initial pos/scale of the widget ('pos', None, DGG.INITOPT), ('hpr', None, DGG.INITOPT), ('scale', None, DGG.INITOPT), ('color', None, DGG.INITOPT), # Do events pass through this widget? ('suppressMouse', 1, DGG.INITOPT), ('suppressKeys', 0, DGG.INITOPT), ('enableEdit', 1, DGG.INITOPT), ) # Merge keyword options with default options self.defineoptions(kw, optiondefs) # Initialize the base classes (after defining the options). DirectGuiBase.__init__(self) NodePath.__init__(self) # Create a button self.guiItem = self['pgFunc']('') # Override automatically generated guiId if self['guiId']: self.guiItem.setId(self['guiId']) self.guiId = self.guiItem.getId() if ShowBaseGlobal.__dev__: guiObjectCollector.addLevel(1) guiObjectCollector.flushLevel() # track gui items by guiId for tracking down leaks if ShowBaseGlobal.config.GetBool('track-gui-items', False): if not hasattr(ShowBase, 'guiItems'): ShowBase.guiItems = {} if self.guiId in ShowBase.guiItems: ShowBase.notify.warning('duplicate guiId: %s (%s stomping %s)' % (self.guiId, self, ShowBase.guiItems[self.guiId])) ShowBase.guiItems[self.guiId] = self # Attach button to parent and make that self if parent is None: parent = ShowBaseGlobal.aspect2d self.assign(parent.attachNewNode(self.guiItem, self['sortOrder'])) # Update pose to initial values if self['pos']: self.setPos(self['pos']) if self['hpr']: self.setHpr(self['hpr']) if self['scale']: self.setScale(self['scale']) if self['color']: self.setColor(self['color']) # Initialize names # Putting the class name in helps with debugging. self.setName("%s-%s" % (self.__class__.__name__, self.guiId)) # Create self.stateNodePath = [] for i in range(self['numStates']): self.stateNodePath.append(NodePath(self.guiItem.getStateDef(i))) # Initialize frame style self.frameStyle = [] for i in range(self['numStates']): self.frameStyle.append(PGFrameStyle()) # For holding bounds info self.ll = Point3(0) self.ur = Point3(0) # Is drag and drop enabled? if self['enableEdit'] and self.guiEdit: self.enableEdit() # Set up event handling suppressFlags = 0 if self['suppressMouse']: suppressFlags |= MouseWatcherRegion.SFMouseButton suppressFlags |= MouseWatcherRegion.SFMousePosition if self['suppressKeys']: suppressFlags |= MouseWatcherRegion.SFOtherButton self.guiItem.setSuppressFlags(suppressFlags) # Bind destroy hook self.guiDict[self.guiId] = self # self.bind(DGG.DESTROY, self.destroy) # Update frame when everything has been initialized self.postInitialiseFuncList.append(self.frameInitialiseFunc) # Call option initialization functions self.initialiseoptions(DirectGuiWidget)
[docs] def frameInitialiseFunc(self): # Now allow changes to take effect self.updateFrameStyle() if not self['frameSize']: self.resetFrameSize()
[docs] def enableEdit(self): self.bind(DGG.B2PRESS, self.editStart) self.bind(DGG.B2RELEASE, self.editStop) self.bind(DGG.PRINT, self.printConfig)
# Can we move this to showbase # Certainly we don't need to do this for every button! #mb = base.mouseWatcherNode.getModifierButtons() #mb.addButton(KeyboardButton.control()) #base.mouseWatcherNode.setModifierButtons(mb)
[docs] def disableEdit(self): self.unbind(DGG.B2PRESS) self.unbind(DGG.B2RELEASE) self.unbind(DGG.PRINT)
#mb = base.mouseWatcherNode.getModifierButtons() #mb.removeButton(KeyboardButton.control()) #base.mouseWatcherNode.setModifierButtons(mb)
[docs] def editStart(self, event): taskMgr.remove('guiEditTask') vWidget2render2d = self.getPos(render2d) vMouse2render2d = Point3(event.getMouse()[0], 0, event.getMouse()[1]) editVec = Vec3(vWidget2render2d - vMouse2render2d) if base.mouseWatcherNode.getModifierButtons().isDown( KeyboardButton.control()): t = taskMgr.add(self.guiScaleTask, 'guiEditTask') t.refPos = vWidget2render2d t.editVecLen = editVec.length() t.initScale = self.getScale() else: t = taskMgr.add(self.guiDragTask, 'guiEditTask') t.editVec = editVec
[docs] def guiScaleTask(self, state): mwn = base.mouseWatcherNode if mwn.hasMouse(): vMouse2render2d = Point3(mwn.getMouse()[0], 0, mwn.getMouse()[1]) newEditVecLen = Vec3(state.refPos - vMouse2render2d).length() self.setScale(state.initScale * (newEditVecLen/state.editVecLen)) return Task.cont
[docs] def guiDragTask(self, state): mwn = base.mouseWatcherNode if mwn.hasMouse(): vMouse2render2d = Point3(mwn.getMouse()[0], 0, mwn.getMouse()[1]) newPos = vMouse2render2d + state.editVec self.setPos(render2d, newPos) if DirectGuiWidget.snapToGrid: newPos = self.getPos() newPos.set( ROUND_TO(newPos[0], DirectGuiWidget.gridSpacing), ROUND_TO(newPos[1], DirectGuiWidget.gridSpacing), ROUND_TO(newPos[2], DirectGuiWidget.gridSpacing)) self.setPos(newPos) return Task.cont
[docs] def editStop(self, event): taskMgr.remove('guiEditTask')
[docs] def setState(self): if type(self['state']) == type(0): self.guiItem.setActive(self['state']) elif (self['state'] == DGG.NORMAL) or (self['state'] == 'normal'): self.guiItem.setActive(1) else: self.guiItem.setActive(0)
[docs] def resetFrameSize(self): if not self.fInit: self.setFrameSize(fClearFrame = 1)
[docs] def setFrameSize(self, fClearFrame = 0): # Use ready state to determine frame Type frameType = self.getFrameType() if self['frameSize']: # Use user specified bounds self.bounds = self['frameSize'] #print "%s bounds = %s" % (self.getName(), self.bounds) bw = (0, 0) else: if fClearFrame and (frameType != PGFrameStyle.TNone): self.frameStyle[0].setType(PGFrameStyle.TNone) self.guiItem.setFrameStyle(0, self.frameStyle[0]) # To force an update of the button self.guiItem.getStateDef(0) # Clear out frame before computing bounds self.getBounds() # Restore frame style if necessary if (frameType != PGFrameStyle.TNone): self.frameStyle[0].setType(frameType) self.guiItem.setFrameStyle(0, self.frameStyle[0]) if ((frameType != PGFrameStyle.TNone) and (frameType != PGFrameStyle.TFlat)): bw = self['borderWidth'] else: bw = (0, 0) # Set frame to new dimensions self.guiItem.setFrame( self.bounds[0] - bw[0], self.bounds[1] + bw[0], self.bounds[2] - bw[1], self.bounds[3] + bw[1])
[docs] def getBounds(self, state = 0): self.stateNodePath[state].calcTightBounds(self.ll, self.ur) # Scale bounds to give a pad around graphics vec_right = Vec3.right() vec_up = Vec3.up() left = (vec_right[0] * self.ll[0] + vec_right[1] * self.ll[1] + vec_right[2] * self.ll[2]) right = (vec_right[0] * self.ur[0] + vec_right[1] * self.ur[1] + vec_right[2] * self.ur[2]) bottom = (vec_up[0] * self.ll[0] + vec_up[1] * self.ll[1] + vec_up[2] * self.ll[2]) top = (vec_up[0] * self.ur[0] + vec_up[1] * self.ur[1] + vec_up[2] * self.ur[2]) self.ll = Point3(left, 0.0, bottom) self.ur = Point3(right, 0.0, top) self.bounds = [self.ll[0] - self['pad'][0], self.ur[0] + self['pad'][0], self.ll[2] - self['pad'][1], self.ur[2] + self['pad'][1]] return self.bounds
[docs] def getWidth(self): return self.bounds[1] - self.bounds[0]
[docs] def getHeight(self): return self.bounds[3] - self.bounds[2]
[docs] def getCenter(self): x = self.bounds[0] + (self.bounds[1] - self.bounds[0])/2.0 y = self.bounds[2] + (self.bounds[3] - self.bounds[2])/2.0 return (x, y)
[docs] def getFrameType(self, state = 0): return self.frameStyle[state].getType()
[docs] def updateFrameStyle(self): if not self.fInit: for i in range(self['numStates']): self.guiItem.setFrameStyle(i, self.frameStyle[i])
[docs] def setRelief(self, fSetStyle = 1): relief = self['relief'] # Convert None, and string arguments if relief == None: relief = PGFrameStyle.TNone elif isinstance(relief, stringType): # Convert string to frame style int relief = DGG.FrameStyleDict[relief] # Set style if relief == DGG.RAISED: for i in range(self['numStates']): if i in self['invertedFrames']: self.frameStyle[1].setType(DGG.SUNKEN) else: self.frameStyle[i].setType(DGG.RAISED) elif relief == DGG.SUNKEN: for i in range(self['numStates']): if i in self['invertedFrames']: self.frameStyle[1].setType(DGG.RAISED) else: self.frameStyle[i].setType(DGG.SUNKEN) else: for i in range(self['numStates']): self.frameStyle[i].setType(relief) # Apply styles self.updateFrameStyle()
[docs] def setFrameColor(self): # this might be a single color or a list of colors colors = self['frameColor'] if type(colors[0]) == int or \ type(colors[0]) == float: colors = (colors,) for i in range(self['numStates']): if i >= len(colors): color = colors[-1] else: color = colors[i] self.frameStyle[i].setColor(color[0], color[1], color[2], color[3]) self.updateFrameStyle()
[docs] def setFrameTexture(self): # this might be a single texture or a list of textures textures = self['frameTexture'] if textures == None or \ isinstance(textures, Texture) or \ isinstance(textures, stringType): textures = (textures,) * self['numStates'] for i in range(self['numStates']): if i >= len(textures): texture = textures[-1] else: texture = textures[i] if isinstance(texture, stringType): texture = loader.loadTexture(texture) if texture: self.frameStyle[i].setTexture(texture) else: self.frameStyle[i].clearTexture() self.updateFrameStyle()
[docs] def setFrameVisibleScale(self): scale = self['frameVisibleScale'] for i in range(self['numStates']): self.frameStyle[i].setVisibleScale(scale[0], scale[1]) self.updateFrameStyle()
[docs] def setBorderWidth(self): width = self['borderWidth'] for i in range(self['numStates']): self.frameStyle[i].setWidth(width[0], width[1]) self.updateFrameStyle()
[docs] def setBorderUvWidth(self): uvWidth = self['borderUvWidth'] for i in range(self['numStates']): self.frameStyle[i].setUvWidth(uvWidth[0], uvWidth[1]) self.updateFrameStyle()
[docs] def destroy(self): if hasattr(self, "frameStyle"): if ShowBaseGlobal.__dev__: guiObjectCollector.subLevel(1) guiObjectCollector.flushLevel() if hasattr(ShowBase, 'guiItems'): ShowBase.guiItems.pop(self.guiId, None) # Destroy children for child in self.getChildren(): childGui = self.guiDict.get(child.getName()) if childGui: childGui.destroy() else: # RAU since we added the class to the name, try # it with the original name parts = child.getName().split('-') simpleChildGui = self.guiDict.get(parts[-1]) if simpleChildGui: simpleChildGui.destroy() # messenger.send(DESTROY + child.getName()) del self.guiDict[self.guiId] del self.frameStyle # Get rid of node path self.removeNode() for nodePath in self.stateNodePath: nodePath.removeNode() del self.stateNodePath del self.guiItem # Call superclass destruction method (clears out hooks) DirectGuiBase.destroy(self)
[docs] def printConfig(self, indent = 0): space = ' ' * indent print('%s%s - %s' % (space, self.guiId, self.__class__.__name__)) print('%sPos: %s' % (space, tuple(self.getPos()))) print('%sScale: %s' % (space, tuple(self.getScale()))) # Print out children info for child in self.getChildren(): messenger.send(DGG.PRINT + child.getName(), [indent + 2])
[docs] def copyOptions(self, other): """ Copy other's options into our self so we look and feel like other """ for key, value in other._optionInfo.items(): self[key] = value[1]
[docs] def taskName(self, idString): return (idString + "-" + str(self.guiId))
[docs] def uniqueName(self, idString): return (idString + "-" + str(self.guiId))
[docs] def setProp(self, propString, value): """ Allows you to set a property like frame['text'] = 'Joe' in a function instead of an assignment. This is useful for setting properties inside function intervals where must input a function and extraArgs, not an assignment. """ self[propString] = value