# Name: component.py
# Purpose: base component classes
# Author: Roman Rolinsky <rolinsky@femagsoft.com>
# Created: 31.05.2007
# RCS-ID: $Id: component.py 64107 2010-04-22 14:05:36Z ROL $
"""
Component plugin classes.
This module defines base classes and for deriving component plugin
classes and contains some global variables used to register components
with XRCed.
Components are objects of Component class or one of the derived
classes used to define specialized components (such as sizers). After
a component object is constructed and configured it can be registered
using the Manager global object.
"""
import os,sys,bisect
import wx
from sets import Set
from globals import *
from model import Model
from attribute import *
import params
import view
import images
DEFAULT_POS = (1000,1000)
# Group compatibility specifications.
# Key is the parent group, value is the list of child groups.
# !value means named main group is excluded from possible children.
# "root" is a special group for the tree root
parentChildGroups = {
'root': ['top_level', 'component'], # top-level objects
'frame': ['toolbar', 'menubar', 'statusbar'],
'mdi_parent_frame': ['toolbar', 'menubar', 'statusbar', 'mdi_child_frame'],
'mdi_child_frame': ['toolbar', 'menubar', 'statusbar',
'control', 'window', 'sizer', 'btnsizer',
'!frame', '!mdi_child_frame'],
'wizard': ['wizard_page'],
'window': ['control', 'window', 'sizer', 'btnsizer', '!frame', '!mdi_child_frame'],
'sizer': ['control', 'sizer', 'btnsizer', 'spacer'],
'book': ['control', 'window', '!sizer', '!btnsizer'],
'btnsizer': ['stdbtn'],
'menubar': ['menu'],
'toolbar': ['tool', 'separator'],
'menu': ['menu', 'menu_item', 'separator'],
}
'''
Definition of compatibility of component groups as I{key}:I{group_list} pairs, where
I{key} is a parent group name and I{group_list} is a list of children group names or
group names prefixed with '!' character to exclude components having corresponding
primary group. This dictionary can be modified by component plugins directly
(some care must be taken not to redefine existing relations or breake them).
'''
class Component(object):
'''Base class for component plugins.'''
# Common window attributes
windowAttributes = ['fg', 'bg', 'font', 'tooltip', 'help',
'enabled', 'focused', 'hidden']
'''Default window attributes for window-like components.'''
genericStyles = [
'wxSIMPLE_BORDER', 'wxSUNKEN_BORDER', 'wxDOUBLE_BORDER',
'wxRAISED_BORDER', 'wxSTATIC_BORDER', 'wxNO_BORDER',
'wxCLIP_CHILDREN', 'wxTRANSPARENT_WINDOW', 'wxWANTS_CHARS',
'wxNO_FULL_REPAINT_ON_RESIZE', 'wxFULL_REPAINT_ON_RESIZE'
]
'''Default generic styles.'''
genericExStyles = [
'wxWS_EX_VALIDATE_RECURSIVELY',
'wxWS_EX_BLOCK_EVENTS',
# 'wxWS_EX_TRANSIENT', # not processed by XRC (yet?)
'wxWS_EX_PROCESS_IDLE',
'wxWS_EX_PROCESS_UI_UPDATES'
]
'''Default generic extended styles.'''
genericEvents = [
'EVT_WINDOW_CREATE', 'EVT_WINDOW_DESTROY',
'EVT_MOVE', 'EVT_SIZE',
'EVT_MOUSE_EVENTS', 'EVT_MOTION',
'EVT_LEFT_DOWN', 'EVT_LEFT_DCLICK',
'EVT_MIDDLE_DOWN', 'EVT_MIDDLE_DCLICK',
'EVT_RIGHT_DOWN', 'EVT_RIGHT_DCLICK', 'EVT_MOUSEWHEEL',
'EVT_ENTER_WINDOW', 'EVT_LEAVE_WINDOW',
'EVT_KEY_DOWN', 'EVT_KEY_UP', 'EVT_CHAR',
'EVT_PAINT', 'EVT_ERASE_BACKGROUND',
'EVT_CONTEXT_MENU', 'EVT_HELP',
'EVT_SET_FOCUS', 'EVT_KILL_FOCUS', 'EVT_CHILD_FOCUS',
'EVT_UPDATE_UI', 'EVT_IDLE',
]
'''Default generic events.'''
hasName = True # most elements have XRC IDs
'''True if component has an XRC ID attribute.'''
isTopLevel = False # if can be created as top level window
'''True if component can be a top-level object in XML tree.'''
renameDict = {}
'''Dictionary of I{old_name}:I{new_name} for renaming some attributes
in the Attribute Panel.'''
hasCode = True
'''True if component can generate code.'''
def __init__(self, klass, groups, attributes, **kargs):
'''
Construct a new Component object.
@param klass: Interface element class name (e.g. C{'wxButton'}).
@param groups: List of group names to which this component belongs.
First group is considered to be the I{primary group}.
@param attributes: List of XRC attribute names.
B{Supported keyword parameters:}
@keyword defaults: Dictionary of default attribute values for creating
new items.
@keyword specials: Dictionary of I{attribute_name}:I{attribute_class} pairs
for specifying special attribute classes for some attributes, instead of
using default Attribute class.
@keyword params: Dictionary of pairs I{attribute_name}:I{param_class} where
I{param_class} is a attribute interface class (one of classes in
params.py or a custom class). If a param class is not specified, a default
value defined by C{paramDict} dictionary is used.
@keyword image,images: C{wx.Image} object or a list of C{wx.Image} objects
for tree icons.
@keyword events: List of event names for code generation panel.
'''
self.klass = klass
self.groups = groups
self.attributes = attributes
self.styles = []
self.exStyles = []
self.defaults = kargs.pop('defaults', {})
# Special Attribute classes if required
self.specials = kargs.pop('specials', {})
# Some default special attributes
self.specials['font'] = FontAttribute
self.specials['XRCED'] = CodeAttribute
# Special Param classes if required
self.params = kargs.pop('params', {})
# Tree image
if 'images' in kargs:
self.images = kargs.pop('images')
elif 'image' in kargs:
self.images = [kargs.pop('image')]
elif not 'image' in self.__dict__:
self.images = []
# Code generation data
self.events = kargs.pop('events', [])
def addStyles(self, *styles):
'''Add more styles.'''
self.styles.extend(styles)
def addExStyles(self, *styles):
'''Add more extra styles.'''
self.exStyles.extend(styles)
def setSpecial(self, attrName, attrClass):
'''Set special attribute class for processing XML.
@param attrName: Attribute name.
@param attrClass: Attribute class.
'''
self.specials[attrName] = attrClass
def setParamClass(self, attrName, paramClass):
'''Set special attribute panel class for editing attribute value.
@param attrName: Attribute name.
@param paramClass: Param class.
'''
self.params[attrName] = paramClass
def getTreeImageId(self, node):
try:
return self.images[0].Id
except IndexError:
if self.isContainer():
return 1
return 0
def getTreeText(self, node):
if node.nodeType == node.COMMENT_NODE:
return node.data
if node.tagName == 'object_ref':
ref = node.getAttribute('ref')
label = 'ref: %s' % ref
else:
label = node.getAttribute('subclass')
if not label:
label = node.getAttribute('class')
if self.hasName:
name = node.getAttribute('name')
if name: label += ' "%s"' % name
return label
def addEvents(self, *events):
'''Add more events.'''
self.events.extend(events)
# Order components having same index by group and klass
def __cmp__(self, other):
if self.groups < other.groups: return -1
elif self.groups == other.groups:
if self.klass < other.klass: return -1
elif self.klass == other.klass: return 0
else: return 1
else: return 1
def __repr__(self):
return "Component('%s', %s)" % (self.klass, self.attributes)
def canHaveChild(self, component):
'''True if the current component can have child of given type.
This function is redefined by container classes.'''
return False
def canBeReplaced(self, component):
'''True if the current component can be replaced by component.
This function can be redefined by derived classes.'''
return component.groups == groups
def isContainer(self):
'''True if component is a container (can have child nodes).'''
return isinstance(self, Container)
def getAttribute(self, node, attribute):
attrClass = self.specials.get(attribute, Attribute)
# 'object' means attribute is a text node without element tag,
if attribute == 'object':
return attrClass.get(node)
elif issubclass(attrClass, AttributeAttribute):
return attrClass.getAA(node, attribute)
for n in node.childNodes:
if n.nodeType == node.ELEMENT_NODE and n.tagName == attribute:
return attrClass.get(n)
return attrClass.get(None)
def addAttribute(self, node, attribute, value):
'''Add attribute element.'''
attrClass = self.specials.get(attribute, Attribute)
attrClass.add(node, attribute, value)
def makeTestWin(self, res, name):
'''Method can be overrided by derived classes to create custom test view.
@param res: C{wx.xrc.XmlResource} object with current test resource.
@param name: XRC ID of tested object.
'''
if not self.hasName: raise NotImplementedError
testWin = view.testWin
if self.isTopLevel:
# Top-level window creates frame itself
frame = None
object = res.LoadObject(view.frame, STD_NAME, self.klass)
object.Fit()
testWin.size = object.GetSize()
else:
# Create MiniFrame to hold selected subtree
frame = testWin.frame
if not frame:
frame = wx.MiniFrame(view.frame, -1, '%s: %s' % (self.klass, name), name=STD_NAME,
style=wx.CAPTION|wx.CLOSE_BOX|wx.RESIZE_BORDER)
frame.panel = wx.Panel(frame)
object = res.LoadObject(frame.panel, STD_NAME, self.klass)
if not object: raise NotImplementedError
if not isinstance(object, wx.Window): raise NotImplementedError
object.SetPosition((10,10))
if g.conf.fitTestWin:
object.Fit()
if frame:
frame.SetClientSize(object.GetSize()+(20,20))
testWin.size = frame.GetSize()
return frame, object
def getRect(self, obj):
'''Return bounding box coordinates for C{obj}.'''
# Object's rect must be relative to testWin.object
if isinstance(obj, wx.Window):
return [obj.GetRect()]
elif isinstance(obj, wx.Rect): # spacer
return [obj]
else:
return None
def copyAttributes(self, srcNode, dstNode):
'''Copy relevant attribute nodes from srcNode to dstNode.'''
dstComp = Manager.getNodeComp(dstNode)
if dstComp.hasName:
dstNode.setAttribute('name', srcNode.getAttribute('name'))
for n in srcNode.childNodes:
if n.nodeType == n.ELEMENT_NODE:
a = n.tagName
# Check if attributes are compatible
srcAttrClass = self.specials.get(a, Attribute)
dstAttrClass = dstComp.specials.get(a, Attribute)
if srcAttrClass is not dstAttrClass: continue
srcParamClass = self.params.get(a, params.paramDict.get(a, params.ParamText))
dstParamClass = dstComp.params.get(a, params.paramDict.get(a, params.ParamText))
if srcParamClass is not dstParamClass: continue
# Style and exstyle are not in attributes and can be treated specially
if a == 'style':
styles = self.getAttribute(srcNode, a).split('|')
allStyles = dstComp.styles + self.genericStyles
dstStyles = [s for s in styles if s.strip() in allStyles]
if dstStyles:
dstComp.addAttribute(dstNode, a, '|'.join(dstStyles))
elif a == 'exstyle':
styles = self.getAttribute(srcNode, a).split('|')
allStyles = dstComp.exStyles + self.genericExStyles
dstStyles = [s for s in styles if s.strip() in allStyles]
if dstStyles:
dstComp.addAttribute(dstNode, a, '|'.join(dstStyles))
elif a in dstComp.attributes:
value = self.getAttribute(srcNode, a)
dstComp.addAttribute(dstNode, a, value)
def copyImplicitAttributes(self, srcNode, dstNode, dstComp):
'''Copy relevant implicit attribute nodes from srcNode to dstNode.'''
for n in srcNode.childNodes:
if n.nodeType == n.ELEMENT_NODE and not is_object(n):
a = n.tagName
if a in dstComp.implicitAttributes:
value = self.getAttribute(srcNode, a)
dstComp.addAttribute(dstNode, a, value)
class SimpleComponent(Component):
'''Component without window attributes and styles.'''
windowAttributes = []
genericStyles = genericExStyles = []
class Container(Component):
'''Base class for containers.'''
def canHaveChild(self, component):
# Test exclusion first
for g in self.groups:
if '!'+component.groups[0] in parentChildGroups.get(g, []): return False
# Test for any possible parent-child
groups = Set(component.groups)
for g in self.groups:
if groups.intersection(parentChildGroups.get(g, [])):
return True
return False
def isSizer(self):
'''If this container manages children positions and sizes.'''
return False
def requireImplicit(self, node):
'''If there are implicit nodes for this particular node.'''
return False
def getTreeNode(self, node):
'''Some containers may hide some internal elements.'''
return node
def getTreeOrImplicitNode(self, node):
'''Return topmost child (implicit if exists).'''
return node
def appendChild(self, parentNode, node):
'''Append child node. Can be overriden to create implicit nodes.'''
parentNode.appendChild(node)
def insertBefore(self, parentNode, node, nextNode):
'''Insert node before nextNode. Can be overriden to create implicit nodes.'''
parentNode.insertBefore(node, nextNode)
def insertAfter(self, parentNode, node, prevNode):
'''Insert node after prevNode. Can be overriden to create implicit nodes.'''
parentNode.insertBefore(node, prevNode.nextSibling)
def removeChild(self, parentNode, node):
'''
Remove node and the implicit node (if present). Return
top-level removed child.
'''
return parentNode.removeChild(node)
def copyObjects(self, srcNode, dstNode):
# Copy child objects only for the same group
dstComp = Manager.getNodeComp(dstNode)
if self.groups[0] != dstComp.groups[0]: return
children = []
for n in filter(is_object, srcNode.childNodes):
n = self.getTreeNode(n)
if dstComp.canHaveChild(Manager.getNodeComp(n)):
dstComp.appendChild(dstNode, n)
def replaceChild(self, parentNode, newNode, oldNode):
'''Replace oldNode by newNode keeping relevant attributes.'''
# Keep compatible children
oldComp = Manager.getNodeComp(oldNode)
oldComp.copyAttributes(oldNode, newNode)
if oldComp.isContainer():
oldComp.copyObjects(oldNode, newNode)
parentNode.replaceChild(newNode, oldNode)
def getChildObject(self, node, obj, index):
"""Get index'th child of a tested interface element."""
if isinstance(obj, wx.Window) and obj.GetSizer():
return obj.GetSizer()
try:
return obj.GetChildren()[index]
except IndexError:
return None
class SimpleContainer(Container):
'''Container without window attributes and styles.'''
windowAttributes = []
genericStyles = genericExStyles = []
class RootComponent(Container):
'''Special root component.'''
windowAttributes = []
genericStyles = genericExStyles = []
hasName = False
hasCode = False
class SmartContainer(Container):
'''Base class for containers with implicit nodes.'''
implicitRenameDict = {}
def __init__(self, klass, groups, attributes, **kargs):
Container.__init__(self, klass, groups, attributes, **kargs)
self.implicitKlass = kargs.pop('implicit_klass')
self.implicitPageName = kargs.pop('implicit_page')
self.implicitAttributes = kargs.pop('implicit_attributes')
# This is optional
self.implicitParams = kargs.pop('implicit_params', {})
def getTreeNode(self, node):
if node.getAttribute('class') == self.implicitKlass:
for n in node.childNodes: # find first object
if is_object(n): return n
# Maybe some children are not implicit
return node
def getTreeOrImplicitNode(self, node):
'''Return topmost child (implicit if exists).'''
if node.parentNode.getAttribute('class') == self.implicitKlass:
return node.parentNode
else:
return node
def appendChild(self, parentNode, node):
if self.requireImplicit(node):
elem = Model.createObjectNode(self.implicitKlass)
elem.appendChild(node)
parentNode.appendChild(elem)
else:
parentNode.appendChild(node)
def insertBefore(self, parentNode, node, nextNode):
if self.requireImplicit(nextNode):
nextNode = nextNode.parentNode
if self.requireImplicit(node):
elem = Model.createObjectNode(self.implicitKlass)
elem.appendChild(node)
parentNode.insertBefore(elem, nextNode)
else:
parentNode.insertBefore(node, nextNode)
def insertAfter(self, parentNode, node, prevNode):
if self.requireImplicit(prevNode):
nextNode = prevNode.parentNode.nextSibling
else:
nextNode = prevNode.nextSibling
if self.requireImplicit(node):
elem = Model.createObjectNode(self.implicitKlass)
elem.appendChild(node)
parentNode.insertBefore(elem, nextNode)
else:
parentNode.insertBefore(node, nextNode)
def removeChild(self, parentNode, node):
if self.requireImplicit(node):
implicitNode = node.parentNode
return parentNode.removeChild(implicitNode)
else:
return parentNode.removeChild(node)
def replaceChild(self, parentNode, newNode, oldNode):
# Do similarly to Container for object child nodes
oldComp = Manager.getNodeComp(oldNode)
oldComp.copyAttributes(oldNode, newNode)
if oldComp.isContainer():
oldComp.copyObjects(oldNode, newNode)
# Special treatment for implicit nodes
if self.requireImplicit(oldNode):
implicitNode = oldNode.parentNode
if self.requireImplicit(newNode):
implicitNode.replaceChild(newNode, oldNode)
else:
parentNode.replaceChild(newNode, implicitNode)
else:
if self.requireImplicit(newNode):
elem = Model.createObjectNode(self.implicitKlass)
elem.appendChild(newNode)
parentNode.replaceChild(elem, oldNode)
else:
parentNode.replaceChild(newNode, oldNode)
def requireImplicit(self, node):
# SmartContainer by default requires implicit
return True
def setImplicitParamClass(self, attrName, paramClass):
'''Set special Param class.'''
self.implicitParams[attrName] = paramClass
class Sizer(SmartContainer):
'''Sizers are not windows and have common implicit node.'''
windowAttributes = []
hasName = False
genericStyles = []
genericExStyles = []
renameDict = {'orient':'orientation'}
implicitRenameDict = {'option':'proportion'}
def __init__(self, klass, groups, attributes, **kargs):
kargs.setdefault('implicit_klass', 'sizeritem')
kargs.setdefault('implicit_page', 'SizerItem')
kargs.setdefault('implicit_attributes', ['option', 'flag', 'border', 'minsize', 'ratio'])
kargs.setdefault('implicit_params', {'option': params.ParamInt,
'minsize': params.ParamPosSize,
'ratio': params.ParamPosSize})
SmartContainer.__init__(self, klass, groups, attributes, **kargs)
def isSizer(self):
return True
def requireImplicit(self, node):
return node.getAttribute('class') != 'spacer'
def getChildObject(self, node, obj, index):
obj = obj.GetChildren()[index]
if obj.IsSizer():
return obj.GetSizer()
elif obj.IsWindow():
return obj.GetWindow()
elif obj.IsSpacer():
return obj.GetRect()
return None # normally this is an error
def getRect(self, obj):
rects = [wx.RectPS(obj.GetPosition(), obj.GetSize())]
for sizerItem in obj.GetChildren():
rect = sizerItem.GetRect()
rects.append(rect)
# Add lines to show borders
flag = sizerItem.GetFlag()
border = sizerItem.GetBorder()
if border == 0: continue
x = (rect.GetLeft() + rect.GetRight()) / 2
if flag & wx.TOP:
rects.append(wx.Rect(x, rect.GetTop() - border, 0, border))
if flag & wx.BOTTOM:
rects.append(wx.Rect(x, rect.GetBottom() + 1, 0, border))
y = (rect.GetTop() + rect.GetBottom()) / 2
if flag & wx.LEFT:
rects.append(wx.Rect(rect.GetLeft() - border, y, border, 0))
if flag & wx.RIGHT:
rects.append(wx.Rect(rect.GetRight() + 1, y, border, 0))
return rects
class BoxSizer(Sizer):
'''Sizers are not windows and have common implicit node.'''
def __init__(self, klass, groups, attributes, **kargs):
Sizer.__init__(self, klass, groups, attributes, **kargs)
def getTreeImageId(self, node):
if self.getAttribute(node, 'orient') == 'wxVERTICAL':
return self.images[0].Id
else:
return self.images[1].Id
def getRect(self, obj):
rects = Sizer.getRect(self, obj)
for sizerItem in obj.GetChildren():
rect = sizerItem.GetRect()
flag = sizerItem.GetFlag()
if flag & wx.EXPAND:
if obj.GetOrientation() == wx.VERTICAL:
y = (rect.GetTop() + rect.GetBottom()) / 2
rects.append(wx.Rect(rect.x, y, rect.width, 0))
else:
x = (rect.GetLeft() + rect.GetRight()) / 2
rects.append(wx.Rect(x, rect.y, 0, rect.height))
return rects
def setDefaults(self, node):
if node.tagName == 'object_ref': return
if self.requireImplicit(node):
comp = Manager.getNodeComp(node)
sizerItem = self.getTreeOrImplicitNode(node)
if comp.isContainer():
for a,v in g.conf.defaultsContainer.items():
self.addAttribute(sizerItem, a, v)
else:
for a,v in g.conf.defaultsControl.items():
self.addAttribute(sizerItem, a, v)
def appendChild(self, parentNode, node):
Sizer.appendChild(self, parentNode, node)
self.setDefaults(node)
def insertBefore(self, parentNode, node, nextNode):
Sizer.insertBefore(self, parentNode, node, nextNode)
self.setDefaults(node)
def insertAfter(self, parentNode, node, prevNode):
Sizer.insertAfter(self, parentNode, node, prevNode)
self.setDefaults(node)
################################################################################
class _ComponentManager:
'''Component manager used to register component plugins.'''
def __init__(self):
self.rootComponent = RootComponent('root', ['root'], ['encoding'],
specials={'encoding': EncodingAttribute},
params={'encoding': params.ParamEncoding})
self.components = {}
self.ids = {}
self.firstId = self.lastId = -1
self.menus = {}
self.panels = {}
self.menuNames = ['TOP_LEVEL', 'ROOT', 'bar', 'control', 'button', 'box',
'container', 'sizer', 'custom']
self.panelNames = ['Windows', 'Panels', 'Controls', 'Sizers', 'Menus',
'Gizmos', 'Custom']
self.panelImages = {}
def init(self):
self.firstId = self.lastId = wx.NewId()
self.external = [] # external resources
self.handlers = [] # registered XmlHandlers
def register(self, component):
'''Register component object.'''
TRACE('register %s' % component.klass)
self.components[component.klass] = component
# unique wx ID for event handling
component.id = self.lastId = wx.NewId()
self.ids[component.id] = component
def forget(self, klass):
'''Remove registered component.'''
del self.components[klass]
for menu,iclh in self.menus.items():
if iclh[1].klass == klass:
self.menus[menu].remove(iclh)
for panel,icb in self.panels.items():
if icb[1].klass == klass:
self.panels[panel].remove(icb)
def getNodeComp(self, node, defaultClass='unknown'):
# For ref nodes without class name, need to find ref element
if node is Model.mainNode:
return self.rootComponent
elif node.nodeType == node.COMMENT_NODE:
return self.components['comment']
cls = node.getAttribute('class')
if node.tagName == 'object_ref':
if not cls:
refNode = Model.findResource(node.getAttribute('ref'))
if refNode:
cls = refNode.getAttribute('class')
else:
cls = 'unknown'
if defaultClass and cls not in self.components:
cls = defaultClass
return self.components[cls]
def getMenuData(self, menu):
return self.menus.get(menu, None)
def setMenu(self, component, menu, label, help, index=999999):
'''Set pulldown menu data.'''
if menu not in self.menuNames: self.menuNames.append(menu)
if menu not in self.menus: self.menus[menu] = []
bisect.insort_left(self.menus[menu], (index, component, label, help))
def getPanelData(self, panel):
return self.panels.get(panel, None)
def setTool(self, component, panel, bitmap=None,
pos=DEFAULT_POS, span=(1,1)):
'''Set toolpanel data.'''
if panel not in self.panelNames: self.panelNames.append(panel)
if panel not in self.panels: self.panels[panel] = []
# Auto-select bitmap if not provided
if not bitmap:
bmpPath = os.path.join('bitmaps', component.klass + '.png')
if os.path.exists(bmpPath):
bitmap = wx.Bitmap(bmpPath)
else:
bitmap = images.ToolDefault.GetBitmap()
if g.conf.toolIconScale != 100:
im = bitmap.ConvertToImage().Scale(
bitmap.GetWidth() * g.conf.toolIconScale / 100,
bitmap.GetHeight() * g.conf.toolIconScale / 100)
bitmap = im.ConvertToBitmap()
bisect.insort_left(self.panels[panel], (pos, span, component, bitmap))
def addXmlHandler(self, h):
'''
Add an XML resource handler. h must be a class derived from import
XmlResourceHandler or a function loaded from adynamiclibrary import
using ctypes.
'''
self.handlers.append(h)
def findById(self, id):
return self.ids[id]
def addXmlHandlers(self, res):
'''Register XML handlers before creating a test window.'''
for h in self.handlers:
TRACE('registering Xml handler %s', h)
if g._CFuncPtr and isinstance(h, g._CFuncPtr):
try:
apply(h, ())
except:
logger.exception('error calling DL func "%s"', h)
wx.LogError('error calling DL func "%s"' % h)
else: # assume a python class handler
try:
res.AddHandler(apply(h, ()))
except:
logger.exception('error adding XmlHandler "%s"', h)
wx.LogError('error adding XmlHandler "%s"' % h)
def addExternal(self, f):
'''Add an external resource file f to the list of preloaded
resources.'''
self.external.append(f)
Model.addExternal(f)
def preload(self, res):
'''Preload external resources.'''
for f in self.external:
TRACE('Loading external resources: %s', f)
res.Load(f)
# Singleton object
Manager = _ComponentManager()
'''Singleton global object of L{_ComponentManager} class.'''
c = SimpleComponent('comment', ['top_level', 'control'], ['comment'],
specials={'comment': CommentAttribute},
image=images.TreeComment.GetImage())
c.hasName = False
c.hasCode = False
c.setParamClass('comment', params.ParamMultilineText)
Manager.register(c)
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