panel.py

Wxpython Implemented on Windows CE, Source code

# Name:         panel.py
# Purpose:      XRC editor, Panel class and related
# Author:       Roman Rolinsky <[e-mail]>
# Created:      02.12.2002
# RCS-ID:       $Id: panel.py,v 1.20 2006/05/17 03:57:57 RD Exp $

from xxx import *                       # xxx imports globals and params
from undo import *
from wx.html import HtmlWindow

# Properties panel containing notebook
class Panel(wx.Notebook):
    def __init__(self, parent, id = -1):
        if wx.Platform != '__WXMAC__':   # some problems with this style on macs
            wx.Notebook.__init__(self, parent, id, style=wx.NB_BOTTOM)
        else:
            wx.Notebook.__init__(self, parent, id)
        global panel
        g.panel = panel = self
        self.modified = False

        # Set common button size for parameter buttons
        bTmp = wx.Button(self, -1, '')
        import params
        params.buttonSize = (self.DLG_SZE(buttonSize)[0], bTmp.GetSize()[1])
        bTmp.Destroy()
        del bTmp

        # List of child windows
        self.pages = []
        # Create scrolled windows for pages
        self.page1 = wx.ScrolledWindow(self, -1)
        sizer = wx.BoxSizer()
        sizer.Add(wx.BoxSizer())         # dummy sizer
        self.page1.SetAutoLayout(True)
        self.page1.SetSizer(sizer)
        self.AddPage(self.page1, 'Properties')
        # Second page
        self.page2 = wx.ScrolledWindow(self, -1)
        self.page2.Hide()
        sizer = wx.BoxSizer()
        sizer.Add(wx.BoxSizer())         # dummy sizer
        self.page2.SetAutoLayout(True)
        self.page2.SetSizer(sizer)
        # Cache for already used panels
        self.pageCache = {}             # cached property panels
        self.stylePageCache = {}        # cached style panels

    # Delete child windows and recreate page sizer
    def ResetPage(self, page):
        topSizer = page.GetSizer()
        sizer = topSizer.GetChildren()[0].GetSizer()
        for w in page.GetChildren():
            sizer.Detach(w)
            if isinstance(w, ParamPage):
                if w.IsShown():
                    w.Hide()
            else:
                w.Destroy()
        topSizer.Remove(sizer)
        # Create new windows
        sizer = wx.BoxSizer(wx.VERTICAL)
        # Special case - resize html window
        if g.conf.panic:
            topSizer.Add(sizer, 1, wx.EXPAND)
        else:
            topSizer.Add(sizer, 0, wx.ALL, 5)
        return sizer

    def SetData(self, xxx):
        self.pages = []
        # First page
        # Remove current objects and sizer
        sizer = self.ResetPage(self.page1)
        if not xxx or (not xxx.allParams and not xxx.hasName and not xxx.hasChild):
            if g.tree.selection:
                sizer.Add(wx.StaticText(self.page1, -1, 'This item has no properties.'))
            else:                       # nothing selected
                # If first time, show some help
                if g.conf.panic:
                    html = HtmlWindow(self.page1, -1, wx.DefaultPosition,
                                        wx.DefaultSize, wx.SUNKEN_BORDER)
                    html.SetPage(g.helpText)
                    sizer.Add(html, 1, wx.EXPAND)
                    g.conf.panic = False
                else:
                    sizer.Add(wx.StaticText(self.page1, -1, 'Select a tree item.'))
        else:
            g.currentXXX = xxx.treeObject()
            # Normal or SizerItem page
            isGBSizerItem = isinstance(xxx.parent, xxxGridBagSizer)
            cacheID = (xxx.__class__, isGBSizerItem)            
            try:
                page = self.pageCache[cacheID]
                page.box.SetLabel(xxx.panelName())
                page.Show()
            except KeyError:
                page = PropPage(self.page1, xxx.panelName(), xxx)
                self.pageCache[cacheID] = page
            page.SetValues(xxx)
            self.pages.append(page)
            sizer.Add(page, 1, wx.EXPAND)
            if xxx.hasChild:
                # Special label for child objects - they may have different GUI
                cacheID = (xxx.child.__class__, xxx.__class__)
                try:
                    page = self.pageCache[cacheID]
                    page.box.SetLabel(xxx.child.panelName())
                    page.Show()
                except KeyError:
                    page = PropPage(self.page1, xxx.child.panelName(), xxx.child)
                    self.pageCache[cacheID] = page
                page.SetValues(xxx.child)
                self.pages.append(page)
                sizer.Add(page, 0, wx.EXPAND | wx.TOP, 5)
        self.page1.Layout()
        size = self.page1.GetSizer().GetMinSize()
        self.page1.SetScrollbars(1, 1, size.width, size.height, 0, 0, True)

        # Second page
        # Create if does not exist
        if xxx and xxx.treeObject().hasStyle:
            xxx = xxx.treeObject()
            # Simplest case: set data if class is the same
            sizer = self.ResetPage(self.page2)
            try:
                page = self.stylePageCache[xxx.__class__]
                page.Show()
            except KeyError:
                page = StylePage(self.page2, xxx.className + ' style', xxx)
                self.stylePageCache[xxx.__class__] = page
            page.SetValues(xxx)
            self.pages.append(page)
            sizer.Add(page, 0, wx.EXPAND)
            # Add page if not exists
            if not self.GetPageCount() == 2:
                self.AddPage(self.page2, 'Style')
            self.page2.Layout()
            if 'wxGTK' in wx.PlatformInfo:
                self.page2.Show(True)
            size = self.page2.GetSizer().GetMinSize()
            self.page2.SetScrollbars(1, 1, size.width, size.height, 0, 0, True)
        else:
            # Remove page if exists
            if self.GetPageCount() == 2:
                self.SetSelection(0)
                self.page1.Refresh()
                self.RemovePage(1)
        self.modified = False
        
    def Clear(self):
        self.SetData(None)
        self.modified = False
        
    # If some parameter has changed
    def IsModified(self):
        return self.modified
    
    def SetModified(self, value):
        # Register undo object when modifying first time
        if not self.modified and value:
           g.undoMan.RegisterUndo(UndoEdit())
        self.modified = value
        
    def Apply(self):
        for p in self.pages: p.Apply()

################################################################################

# General class for notebook pages
class ParamPage(wx.Panel):
    def __init__(self, parent, xxx):
        wx.Panel.__init__(self, parent, -1)
        self.xxx = xxx
        # Register event handlers
        for id in paramIDs.values():
            wx.EVT_CHECKBOX(self, id, self.OnCheckParams)
        self.checks = {}
        self.controls = {}              # save python objects
        self.controlName = None
        
    def OnCheckParams(self, evt):
        xxx = self.xxx
        param = evt.GetEventObject().GetName()
        w = self.controls[param]
        w.Enable(True)
        objElem = xxx.element
        if evt.IsChecked():
            # Ad  new text node in order of allParams
            w.SetValue('')              # set empty (default) value
            w.SetModified()             # mark as changed
            elem = g.tree.dom.createElement(param)
            # Some classes are special