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wxWidgets/wxPython/samples/pydocview/TextEditor.py
Robin Dunn b792147db7 More updates from Morgan Hua 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33956 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2005-05-05 00:10:29 +00:00

552 lines
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Python
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#----------------------------------------------------------------------------
# Name: TextEditor.py
# Purpose: Text Editor for pydocview
#
# Author: Peter Yared
#
# Created: 8/15/03
# CVS-ID: $Id$
# Copyright: (c) 2003-2005 ActiveGrid, Inc.
# License: wxWindows License
#----------------------------------------------------------------------------
import wx
import wx.lib.docview
import wx.lib.pydocview
import string
import FindService
_ = wx.GetTranslation
class TextDocument(wx.lib.docview.Document):
def OnSaveDocument(self, filename):
view = self.GetFirstView()
if not view.GetTextCtrl().SaveFile(filename):
return False
self.Modify(False)
self.SetDocumentSaved(True)
#if wx.Platform == "__WXMAC__":
# fn = wx.Filename(filename)
# fn.MacSetDefaultTypeAndCreator()
return True
def OnOpenDocument(self, filename):
view = self.GetFirstView()
if not view.GetTextCtrl().LoadFile(filename):
return False
self.SetFilename(filename, True)
self.Modify(False)
self.UpdateAllViews()
self._savedYet = True
return True
def IsModified(self):
view = self.GetFirstView()
if view and view.GetTextCtrl():
return wx.lib.docview.Document.IsModified(self) or view.GetTextCtrl().IsModified()
else:
return wx.lib.docview.Document.IsModified(self)
def Modify(self, mod):
view = self.GetFirstView()
wx.lib.docview.Document.Modify(self, mod)
if not mod and view and view.GetTextCtrl():
view.GetTextCtrl().DiscardEdits()
class TextView(wx.lib.docview.View):
#----------------------------------------------------------------------------
# Overridden methods
#----------------------------------------------------------------------------
def __init__(self):
wx.lib.docview.View.__init__(self)
self._textCtrl = None
self._wordWrap = wx.ConfigBase_Get().ReadInt("TextEditorWordWrap", True)
def OnCreate(self, doc, flags):
frame = wx.GetApp().CreateDocumentFrame(self, doc, flags)
sizer = wx.BoxSizer()
font, color = self._GetFontAndColorFromConfig()
self._textCtrl = self._BuildTextCtrl(frame, font, color = color)
sizer.Add(self._textCtrl, 1, wx.EXPAND, 0)
frame.SetSizer(sizer)
frame.Layout()
frame.Show(True)
self.Activate()
return True
def _BuildTextCtrl(self, parent, font, color = wx.BLACK, value = "", selection = [0, 0]):
if self._wordWrap:
wordWrapStyle = wx.TE_WORDWRAP
else:
wordWrapStyle = wx.TE_DONTWRAP
textCtrl = wx.TextCtrl(parent, -1, pos = wx.DefaultPosition, size = parent.GetClientSize(), style = wx.TE_MULTILINE | wordWrapStyle)
textCtrl.SetFont(font)
textCtrl.SetForegroundColour(color)
textCtrl.SetValue(value)
return textCtrl
def _GetFontAndColorFromConfig(self):
font = wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
config = wx.ConfigBase_Get()
fontData = config.Read("TextEditorFont", "")
if fontData:
nativeFont = wx.NativeFontInfo()
nativeFont.FromString(fontData)
font.SetNativeFontInfo(nativeFont)
color = wx.BLACK
colorData = config.Read("TextEditorColor", "")
if colorData:
red = int("0x" + colorData[0:2], 16)
green = int("0x" + colorData[2:4], 16)
blue = int("0x" + colorData[4:6], 16)
color = wx.Color(red, green, blue)
return font, color
def OnCreateCommandProcessor(self):
# Don't create a command processor, it has its own
pass
def OnActivateView(self, activate, activeView, deactiveView):
if activate and self._textCtrl:
# In MDI mode just calling set focus doesn't work and in SDI mode using CallAfter causes an endless loop
if self.GetDocumentManager().GetFlags() & wx.lib.docview.DOC_SDI:
self._textCtrl.SetFocus()
else:
def SetFocusToTextCtrl():
if self._textCtrl: # Need to make sure it is there in case we are in the closeall mode of the MDI window
self._textCtrl.SetFocus()
wx.CallAfter(SetFocusToTextCtrl)
def OnUpdate(self, sender = None, hint = None):
if hint == "Word Wrap":
self.SetWordWrap(wx.ConfigBase_Get().ReadInt("TextEditorWordWrap", True))
elif hint == "Font":
font, color = self._GetFontAndColorFromConfig()
self.SetFont(font, color)
def OnClose(self, deleteWindow = True):
if not wx.lib.docview.View.OnClose(self, deleteWindow):
return False
self.Activate(False)
if deleteWindow and self.GetFrame():
self.GetFrame().Destroy()
return True
# Since ProcessEvent is not virtual, we have to trap the relevant events using this pseudo-ProcessEvent instead of EVT_MENU
def ProcessEvent(self, event):
id = event.GetId()
if id == wx.ID_UNDO:
if not self._textCtrl:
return False
self._textCtrl.Undo()
return True
elif id == wx.ID_REDO:
if not self._textCtrl:
return False
self._textCtrl.Redo()
return True
elif id == wx.ID_CUT:
if not self._textCtrl:
return False
self._textCtrl.Cut()
return True
elif id == wx.ID_COPY:
if not self._textCtrl:
return False
self._textCtrl.Copy()
return True
elif id == wx.ID_PASTE:
if not self._textCtrl:
return False
self._textCtrl.Paste()
return True
elif id == wx.ID_CLEAR:
if not self._textCtrl:
return False
self._textCtrl.Replace(self._textCtrl.GetSelection()[0], self._textCtrl.GetSelection()[1], '')
return True
elif id == wx.ID_SELECTALL:
if not self._textCtrl:
return False
self._textCtrl.SetSelection(-1, -1)
return True
elif id == TextService.CHOOSE_FONT_ID:
if not self._textCtrl:
return False
self.OnChooseFont(event)
return True
elif id == TextService.WORD_WRAP_ID:
if not self._textCtrl:
return False
self.OnWordWrap(event)
return True
elif id == FindService.FindService.FIND_ID:
self.OnFind()
return True
elif id == FindService.FindService.FIND_PREVIOUS_ID:
self.DoFind(forceFindPrevious = True)
return True
elif id == FindService.FindService.FIND_NEXT_ID:
self.DoFind(forceFindNext = True)
return True
elif id == FindService.FindService.REPLACE_ID:
self.OnFind(replace = True)
return True
elif id == FindService.FindService.FINDONE_ID:
self.DoFind()
return True
elif id == FindService.FindService.REPLACEONE_ID:
self.DoFind(replace = True)
return True
elif id == FindService.FindService.REPLACEALL_ID:
self.DoFind(replaceAll = True)
return True
elif id == FindService.FindService.GOTO_LINE_ID:
self.OnGotoLine(event)
return True
else:
return wx.lib.docview.View.ProcessEvent(self, event)
def ProcessUpdateUIEvent(self, event):
if not self._textCtrl:
return False
hasText = len(self._textCtrl.GetValue()) > 0
id = event.GetId()
if id == wx.ID_UNDO:
event.Enable(self._textCtrl.CanUndo())
return True
elif id == wx.ID_REDO:
event.Enable(self._textCtrl.CanRedo())
return True
if id == wx.ID_CUT:
event.Enable(self._textCtrl.CanCut())
return True
elif id == wx.ID_COPY:
event.Enable(self._textCtrl.CanCopy())
return True
elif id == wx.ID_PASTE:
event.Enable(self._textCtrl.CanPaste())
return True
elif id == wx.ID_CLEAR:
event.Enable(self._textCtrl.CanCopy())
return True
elif id == wx.ID_SELECTALL:
event.Enable(hasText)
return True
elif id == TextService.CHOOSE_FONT_ID:
event.Enable(True)
return True
elif id == TextService.WORD_WRAP_ID:
event.Enable(True)
return True
elif id == FindService.FindService.FIND_ID:
event.Enable(hasText)
return True
elif id == FindService.FindService.FIND_PREVIOUS_ID:
event.Enable(hasText and
self._FindServiceHasString() and
self._textCtrl.GetSelection()[0] > 0)
return True
elif id == FindService.FindService.FIND_NEXT_ID:
event.Enable(hasText and
self._FindServiceHasString() and
self._textCtrl.GetSelection()[0] < len(self._textCtrl.GetValue()))
return True
elif id == FindService.FindService.REPLACE_ID:
event.Enable(hasText)
return True
elif id == FindService.FindService.GOTO_LINE_ID:
event.Enable(True)
return True
else:
return wx.lib.docview.View.ProcessUpdateUIEvent(self, event)
#----------------------------------------------------------------------------
# Methods for TextDocument to call
#----------------------------------------------------------------------------
def GetTextCtrl(self):
return self._textCtrl
#----------------------------------------------------------------------------
# Format methods
#----------------------------------------------------------------------------
def OnChooseFont(self, event):
data = wx.FontData()
data.EnableEffects(True)
data.SetInitialFont(self._textCtrl.GetFont())
data.SetColour(self._textCtrl.GetForegroundColour())
fontDialog = wx.FontDialog(self.GetFrame(), data)
if fontDialog.ShowModal() == wx.ID_OK:
data = fontDialog.GetFontData()
self.SetFont(data.GetChosenFont(), data.GetColour())
fontDialog.Destroy()
def SetFont(self, font, color):
self._textCtrl.SetFont(font)
self._textCtrl.SetForegroundColour(color)
self._textCtrl.Refresh()
self._textCtrl.Layout()
def OnWordWrap(self, event):
self.SetWordWrap(not self.GetWordWrap())
def GetWordWrap(self):
return self._wordWrap
def SetWordWrap(self, wordWrap = True):
self._wordWrap = wordWrap
temp = self._textCtrl
self._textCtrl = self._BuildTextCtrl(temp.GetParent(),
font = temp.GetFont(),
color = temp.GetForegroundColour(),
value = temp.GetValue(),
selection = temp.GetSelection())
self.GetDocument().Modify(temp.IsModified())
temp.Destroy()
#----------------------------------------------------------------------------
# Find methods
#----------------------------------------------------------------------------
def OnFind(self, replace = False):
findService = wx.GetApp().GetService(FindService.FindService)
if findService:
findService.ShowFindReplaceDialog(findString = self._textCtrl.GetStringSelection(), replace = replace)
def DoFind(self, forceFindNext = False, forceFindPrevious = False, replace = False, replaceAll = False):
findService = wx.GetApp().GetService(FindService.FindService)
if not findService:
return
findString = findService.GetFindString()
if len(findString) == 0:
return -1
replaceString = findService.GetReplaceString()
flags = findService.GetFlags()
startLoc, endLoc = self._textCtrl.GetSelection()
wholeWord = flags & wx.FR_WHOLEWORD > 0
matchCase = flags & wx.FR_MATCHCASE > 0
regExp = flags & FindService.FindService.FR_REGEXP > 0
down = flags & wx.FR_DOWN > 0
wrap = flags & FindService.FindService.FR_WRAP > 0
if forceFindPrevious: # this is from function keys, not dialog box
down = False
wrap = False # user would want to know they're at the end of file
elif forceFindNext:
down = True
wrap = False # user would want to know they're at the end of file
# On replace dialog operations, user is allowed to replace the currently highlighted text to determine if it should be replaced or not.
# Typically, it is the text from a previous find operation, but we must check to see if it isn't, user may have moved the cursor or selected some other text accidentally.
# If the text is a match, then replace it.
if replace:
result, start, end, replText = findService.DoFind(findString, replaceString, self._textCtrl.GetStringSelection(), 0, 0, True, matchCase, wholeWord, regExp, replace)
if result > 0:
self._textCtrl.Replace(startLoc, endLoc, replaceString)
self.GetDocument().Modify(True)
wx.GetApp().GetTopWindow().PushStatusText(_("1 occurrence of \"%s\" replaced") % findString)
if down:
startLoc += len(replText) # advance start location past replacement string to new text
endLoc = startLoc
text = self._textCtrl.GetValue()
if wx.Platform == "__WXMSW__":
text = string.replace(text, '\n', '\r\n')
# Find the next matching text occurance or if it is a ReplaceAll, replace all occurances
# Even if the user is Replacing, we should replace here, but only select the text and let the user replace it with the next Replace operation
result, start, end, text = findService.DoFind(findString, replaceString, text, startLoc, endLoc, down, matchCase, wholeWord, regExp, False, replaceAll, wrap)
if result > 0:
self._textCtrl.SetValue(text)
self.GetDocument().Modify(True)
if result == 1:
wx.GetApp().GetTopWindow().PushStatusText(_("1 occurrence of \"%s\" replaced") % findString)
else:
wx.GetApp().GetTopWindow().PushStatusText(_("%i occurrences of \"%s\" replaced") % (result, findString))
elif result == 0:
self._textCtrl.SetSelection(start, end)
self._textCtrl.SetFocus()
wx.GetApp().GetTopWindow().PushStatusText(_("Found \"%s\"") % findString)
else:
wx.GetApp().GetTopWindow().PushStatusText(_("Can't find \"%s\"") % findString)
def _FindServiceHasString(self):
findService = wx.GetApp().GetService(FindService.FindService)
if not findService or not findService.GetFindString():
return False
return True
def OnGotoLine(self, event):
findService = wx.GetApp().GetService(FindService.FindService)
if findService:
line = findService.GetLineNumber(self.GetDocumentManager().FindSuitableParent())
if line > -1:
pos = self._textCtrl.XYToPosition(0, line - 1)
self._textCtrl.SetSelection(pos, pos)
class TextService(wx.lib.pydocview.DocService):
WORD_WRAP_ID = wx.NewId()
CHOOSE_FONT_ID = wx.NewId()
def __init__(self):
wx.lib.pydocview.DocService.__init__(self)
def InstallControls(self, frame, menuBar = None, toolBar = None, statusBar = None, document = None):
if document and document.GetDocumentTemplate().GetDocumentType() != TextDocument:
return
config = wx.ConfigBase_Get()
formatMenuIndex = menuBar.FindMenu(_("&Format"))
if formatMenuIndex > -1:
formatMenu = menuBar.GetMenu(formatMenuIndex)
else:
formatMenu = wx.Menu()
formatMenu = wx.Menu()
if not menuBar.FindItemById(TextService.WORD_WRAP_ID):
formatMenu.AppendCheckItem(TextService.WORD_WRAP_ID, _("Word Wrap"), _("Wraps text horizontally when checked"))
formatMenu.Check(TextService.WORD_WRAP_ID, config.ReadInt("TextEditorWordWrap", True))
wx.EVT_MENU(frame, TextService.WORD_WRAP_ID, frame.ProcessEvent)
wx.EVT_UPDATE_UI(frame, TextService.WORD_WRAP_ID, frame.ProcessUpdateUIEvent)
if not menuBar.FindItemById(TextService.CHOOSE_FONT_ID):
formatMenu.Append(TextService.CHOOSE_FONT_ID, _("Font..."), _("Sets the font to use"))
wx.EVT_MENU(frame, TextService.CHOOSE_FONT_ID, frame.ProcessEvent)
wx.EVT_UPDATE_UI(frame, TextService.CHOOSE_FONT_ID, frame.ProcessUpdateUIEvent)
if formatMenuIndex == -1:
viewMenuIndex = menuBar.FindMenu(_("&View"))
menuBar.Insert(viewMenuIndex + 1, formatMenu, _("&Format"))
def ProcessUpdateUIEvent(self, event):
id = event.GetId()
if id == TextService.CHOOSE_FONT_ID:
event.Enable(False)
return True
elif id == TextService.WORD_WRAP_ID:
event.Enable(False)
return True
else:
return False
class TextOptionsPanel(wx.Panel):
def __init__(self, parent, id):
wx.Panel.__init__(self, parent, id)
SPACE = 10
HALF_SPACE = 5
config = wx.ConfigBase_Get()
self._textFont = wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
fontData = config.Read("TextEditorFont", "")
if fontData:
nativeFont = wx.NativeFontInfo()
nativeFont.FromString(fontData)
self._textFont.SetNativeFontInfo(nativeFont)
self._originalTextFont = self._textFont
self._textColor = wx.BLACK
colorData = config.Read("TextEditorColor", "")
if colorData:
red = int("0x" + colorData[0:2], 16)
green = int("0x" + colorData[2:4], 16)
blue = int("0x" + colorData[4:6], 16)
self._textColor = wx.Color(red, green, blue)
self._originalTextColor = self._textColor
parent.AddPage(self, _("Text"))
fontLabel = wx.StaticText(self, -1, _("Font:"))
self._sampleTextCtrl = wx.TextCtrl(self, -1, "", size = (125, -1))
self._sampleTextCtrl.SetEditable(False)
chooseFontButton = wx.Button(self, -1, _("Choose Font..."))
wx.EVT_BUTTON(self, chooseFontButton.GetId(), self.OnChooseFont)
self._wordWrapCheckBox = wx.CheckBox(self, -1, _("Wrap words inside text area"))
self._wordWrapCheckBox.SetValue(wx.ConfigBase_Get().ReadInt("TextEditorWordWrap", True))
textPanelBorderSizer = wx.BoxSizer(wx.VERTICAL)
textPanelSizer = wx.BoxSizer(wx.VERTICAL)
textFontSizer = wx.BoxSizer(wx.HORIZONTAL)
textFontSizer.Add(fontLabel, 0, wx.ALIGN_LEFT | wx.RIGHT | wx.TOP, HALF_SPACE)
textFontSizer.Add(self._sampleTextCtrl, 0, wx.ALIGN_LEFT | wx.EXPAND | wx.RIGHT, HALF_SPACE)
textFontSizer.Add(chooseFontButton, 0, wx.ALIGN_RIGHT | wx.LEFT, HALF_SPACE)
textPanelSizer.Add(textFontSizer, 0, wx.ALL, HALF_SPACE)
textPanelSizer.Add(self._wordWrapCheckBox, 0, wx.ALL, HALF_SPACE)
textPanelBorderSizer.Add(textPanelSizer, 0, wx.ALL, SPACE)
self.SetSizer(textPanelBorderSizer)
self.UpdateSampleFont()
def UpdateSampleFont(self):
nativeFont = wx.NativeFontInfo()
nativeFont.FromString(self._textFont.GetNativeFontInfoDesc())
font = wx.NullFont
font.SetNativeFontInfo(nativeFont)
font.SetPointSize(self._sampleTextCtrl.GetFont().GetPointSize()) # Use the standard point size
self._sampleTextCtrl.SetFont(font)
self._sampleTextCtrl.SetForegroundColour(self._textColor)
self._sampleTextCtrl.SetValue(_("%d pt. %s") % (self._textFont.GetPointSize(), self._textFont.GetFaceName()))
self._sampleTextCtrl.Refresh()
self.Layout()
def OnChooseFont(self, event):
data = wx.FontData()
data.EnableEffects(True)
data.SetInitialFont(self._textFont)
data.SetColour(self._textColor)
fontDialog = wx.FontDialog(self, data)
if fontDialog.ShowModal() == wx.ID_OK:
data = fontDialog.GetFontData()
self._textFont = data.GetChosenFont()
self._textColor = data.GetColour()
self.UpdateSampleFont()
fontDialog.Destroy()
def OnOK(self, optionsDialog):
config = wx.ConfigBase_Get()
doWordWrapUpdate = config.ReadInt("TextEditorWordWrap", True) != self._wordWrapCheckBox.GetValue()
config.WriteInt("TextEditorWordWrap", self._wordWrapCheckBox.GetValue())
doFontUpdate = self._originalTextFont != self._textFont or self._originalTextColor != self._textColor
config.Write("TextEditorFont", self._textFont.GetNativeFontInfoDesc())
config.Write("TextEditorColor", "%02x%02x%02x" % (self._textColor.Red(), self._textColor.Green(), self._textColor.Blue()))
if doWordWrapUpdate or doFontUpdate:
for document in optionsDialog.GetDocManager().GetDocuments():
if document.GetDocumentTemplate().GetDocumentType() == TextDocument:
if doWordWrapUpdate:
document.UpdateAllViews(hint = "Word Wrap")
if doFontUpdate:
document.UpdateAllViews(hint = "Font")
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