samples/richtext/richtext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/richtext/richtext.cpp
   3 // Purpose:     wxWidgets rich text editor sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     2005-10-02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers (this file is usually all you
  28 // need because it includes almost all "standard" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include "wx/fontdlg.h"
  34 #include "wx/splitter.h"
  35 #include "wx/sstream.h"
  36 #include "wx/html/htmlwin.h"
  37
  38 #include "bitmaps/sample.xpm"
  39 #include "bitmaps/smiley.xpm"
  40 // #include "bitmaps/idea.xpm"
  41 #include "bitmaps/zebra.xpm"
  42
  43 #include "bitmaps/open.xpm"
  44 #include "bitmaps/save.xpm"
  45 #include "bitmaps/copy.xpm"
  46 #include "bitmaps/cut.xpm"
  47 #include "bitmaps/paste.xpm"
  48 #include "bitmaps/undo.xpm"
  49 #include "bitmaps/redo.xpm"
  50 #include "bitmaps/bold.xpm"
  51 #include "bitmaps/italic.xpm"
  52 #include "bitmaps/underline.xpm"
  53
  54 #include "bitmaps/alignleft.xpm"
  55 #include "bitmaps/alignright.xpm"
  56 #include "bitmaps/centre.xpm"
  57 #include "bitmaps/font.xpm"
  58 #include "bitmaps/indentless.xpm"
  59 #include "bitmaps/indentmore.xpm"
  60
  61 #include "wx/richtext/richtextctrl.h"
  62 #include "wx/richtext/richtextstyles.h"
  63 #include "wx/richtext/richtextxml.h"
  64 #include "wx/richtext/richtexthtml.h"
  65
  66 // ----------------------------------------------------------------------------
  67 // resources
  68 // ----------------------------------------------------------------------------
  69
  70 // ----------------------------------------------------------------------------
  71 // private classes
  72 // ----------------------------------------------------------------------------
  73
  74 // Define a new application type, each program should derive a class from wxApp
  75 class MyApp : public wxApp
  76 {
  77 public:
  78     // override base class virtuals
  79     // ----------------------------
  80
  81     // this one is called on application startup and is a good place for the app
  82     // initialization (doing it here and not in the ctor allows to have an error
  83     // return: if OnInit() returns false, the application terminates)
  84     virtual bool OnInit();
  85     virtual int OnExit();
  86
  87     void CreateStyles();
  88
  89     wxRichTextStyleSheet* GetStyleSheet() const { return m_styleSheet; }
  90
  91     wxRichTextStyleSheet* m_styleSheet;
  92 };
  93
  94 // Define a new frame type: this is going to be our main frame
  95 class MyFrame : public wxFrame
  96 {
  97 public:
  98     // ctor(s)
  99     MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos = wxDefaultPosition,
 100         const wxSize& size = wxDefaultSize, long style = wxDEFAULT_FRAME_STYLE);
 101
 102     // event handlers (these functions should _not_ be virtual)
 103     void OnQuit(wxCommandEvent& event);
 104     void OnAbout(wxCommandEvent& event);
 105
 106     void OnOpen(wxCommandEvent& event);
 107     void OnSave(wxCommandEvent& event);
 108     void OnSaveAs(wxCommandEvent& event);
 109
 110     void OnBold(wxCommandEvent& event);
 111     void OnItalic(wxCommandEvent& event);
 112     void OnUnderline(wxCommandEvent& event);
 113
 114     void OnUpdateBold(wxUpdateUIEvent& event);
 115     void OnUpdateItalic(wxUpdateUIEvent& event);
 116     void OnUpdateUnderline(wxUpdateUIEvent& event);
 117
 118     void OnAlignLeft(wxCommandEvent& event);
 119     void OnAlignCentre(wxCommandEvent& event);
 120     void OnAlignRight(wxCommandEvent& event);
 121
 122     void OnUpdateAlignLeft(wxUpdateUIEvent& event);
 123     void OnUpdateAlignCentre(wxUpdateUIEvent& event);
 124     void OnUpdateAlignRight(wxUpdateUIEvent& event);
 125
 126     void OnFont(wxCommandEvent& event);
 127     void OnIndentMore(wxCommandEvent& event);
 128     void OnIndentLess(wxCommandEvent& event);
 129
 130     void OnLineSpacingHalf(wxCommandEvent& event);
 131     void OnLineSpacingDouble(wxCommandEvent& event);
 132     void OnLineSpacingSingle(wxCommandEvent& event);
 133
 134     void OnParagraphSpacingMore(wxCommandEvent& event);
 135     void OnParagraphSpacingLess(wxCommandEvent& event);
 136
 137     void OnViewHTML(wxCommandEvent& event);
 138
 139     // Forward command events to the current rich text control, if any
 140     bool ProcessEvent(wxEvent& event);
 141
 142 private:
 143     // any class wishing to process wxWidgets events must use this macro
 144     DECLARE_EVENT_TABLE()
 145
 146     wxRichTextCtrl*         m_richTextCtrl;
 147 };
 148
 149 // ----------------------------------------------------------------------------
 150 // constants
 151 // ----------------------------------------------------------------------------
 152
 153 // IDs for the controls and the menu commands
 154 enum
 155 {
 156     // menu items
 157     ID_Quit = wxID_EXIT,
 158     ID_About = wxID_ABOUT,
 159
 160     ID_FORMAT_BOLD = 100,
 161     ID_FORMAT_ITALIC,
 162     ID_FORMAT_UNDERLINE,
 163     ID_FORMAT_FONT,
 164
 165     ID_FORMAT_ALIGN_LEFT,
 166     ID_FORMAT_ALIGN_CENTRE,
 167     ID_FORMAT_ALIGN_RIGHT,
 168
 169     ID_FORMAT_INDENT_MORE,
 170     ID_FORMAT_INDENT_LESS,
 171
 172     ID_FORMAT_PARAGRAPH_SPACING_MORE,
 173     ID_FORMAT_PARAGRAPH_SPACING_LESS,
 174
 175     ID_FORMAT_LINE_SPACING_HALF,
 176     ID_FORMAT_LINE_SPACING_DOUBLE,
 177     ID_FORMAT_LINE_SPACING_SINGLE,
 178
 179     ID_VIEW_HTML
 180 };
 181
 182 // ----------------------------------------------------------------------------
 183 // event tables and other macros for wxWidgets
 184 // ----------------------------------------------------------------------------
 185
 186 // the event tables connect the wxWidgets events with the functions (event
 187 // handlers) which process them. It can be also done at run-time, but for the
 188 // simple menu events like this the static method is much simpler.
 189 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 190     EVT_MENU(ID_Quit,  MyFrame::OnQuit)
 191     EVT_MENU(ID_About, MyFrame::OnAbout)
 192
 193     EVT_MENU(wxID_OPEN,  MyFrame::OnOpen)
 194     EVT_MENU(wxID_SAVE,  MyFrame::OnSave)
 195     EVT_MENU(wxID_SAVEAS,  MyFrame::OnSaveAs)
 196
 197     EVT_MENU(ID_FORMAT_BOLD,  MyFrame::OnBold)
 198     EVT_MENU(ID_FORMAT_ITALIC,  MyFrame::OnItalic)
 199     EVT_MENU(ID_FORMAT_UNDERLINE,  MyFrame::OnUnderline)
 200
 201     EVT_UPDATE_UI(ID_FORMAT_BOLD,  MyFrame::OnUpdateBold)
 202     EVT_UPDATE_UI(ID_FORMAT_ITALIC,  MyFrame::OnUpdateItalic)
 203     EVT_UPDATE_UI(ID_FORMAT_UNDERLINE,  MyFrame::OnUpdateUnderline)
 204
 205     EVT_MENU(ID_FORMAT_ALIGN_LEFT,  MyFrame::OnAlignLeft)
 206     EVT_MENU(ID_FORMAT_ALIGN_CENTRE,  MyFrame::OnAlignCentre)
 207     EVT_MENU(ID_FORMAT_ALIGN_RIGHT,  MyFrame::OnAlignRight)
 208
 209     EVT_UPDATE_UI(ID_FORMAT_ALIGN_LEFT,  MyFrame::OnUpdateAlignLeft)
 210     EVT_UPDATE_UI(ID_FORMAT_ALIGN_CENTRE,  MyFrame::OnUpdateAlignCentre)
 211     EVT_UPDATE_UI(ID_FORMAT_ALIGN_RIGHT,  MyFrame::OnUpdateAlignRight)
 212
 213     EVT_MENU(ID_FORMAT_FONT,  MyFrame::OnFont)
 214     EVT_MENU(ID_FORMAT_INDENT_MORE,  MyFrame::OnIndentMore)
 215     EVT_MENU(ID_FORMAT_INDENT_LESS,  MyFrame::OnIndentLess)
 216
 217     EVT_MENU(ID_FORMAT_LINE_SPACING_HALF,  MyFrame::OnLineSpacingHalf)
 218     EVT_MENU(ID_FORMAT_LINE_SPACING_SINGLE,  MyFrame::OnLineSpacingSingle)
 219     EVT_MENU(ID_FORMAT_LINE_SPACING_DOUBLE,  MyFrame::OnLineSpacingDouble)
 220
 221     EVT_MENU(ID_FORMAT_PARAGRAPH_SPACING_MORE,  MyFrame::OnParagraphSpacingMore)
 222     EVT_MENU(ID_FORMAT_PARAGRAPH_SPACING_LESS,  MyFrame::OnParagraphSpacingLess)
 223
 224     EVT_MENU(ID_VIEW_HTML, MyFrame::OnViewHTML)
 225 END_EVENT_TABLE()
 226
 227 // Create a new application object: this macro will allow wxWidgets to create
 228 // the application object during program execution (it's better than using a
 229 // static object for many reasons) and also implements the accessor function
 230 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 231 // not wxApp)
 232 IMPLEMENT_APP(MyApp)
 233
 234 // ============================================================================
 235 // implementation
 236 // ============================================================================
 237
 238 // ----------------------------------------------------------------------------
 239 // the application class
 240 // ----------------------------------------------------------------------------
 241
 242 // 'Main program' equivalent: the program execution "starts" here
 243 bool MyApp::OnInit()
 244 {
 245     m_styleSheet = new wxRichTextStyleSheet;
 246
 247     CreateStyles();
 248
 249     // Add extra handlers (plain text is automatically added)
 250     wxRichTextBuffer::AddHandler(new wxRichTextXMLHandler);
 251     wxRichTextBuffer::AddHandler(new wxRichTextHTMLHandler);
 252
 253     // Add image handlers
 254 #if wxUSE_LIBPNG
 255     wxImage::AddHandler( new wxPNGHandler );
 256 #endif
 257
 258 #if wxUSE_LIBJPEG
 259     wxImage::AddHandler( new wxJPEGHandler );
 260 #endif
 261
 262 #if wxUSE_GIF
 263     wxImage::AddHandler( new wxGIFHandler );
 264 #endif
 265
 266     // create the main application window
 267     MyFrame *frame = new MyFrame(_T("wxRichTextCtrl Sample"), wxID_ANY, wxDefaultPosition, wxSize(600, 500));
 268
 269     // and show it (the frames, unlike simple controls, are not shown when
 270     // created initially)
 271     frame->Show(true);
 272
 273     // success: wxApp::OnRun() will be called which will enter the main message
 274     // loop and the application will run. If we returned false here, the
 275     // application would exit immediately.
 276     return true;
 277 }
 278
 279 int MyApp::OnExit()
 280 {
 281     delete m_styleSheet;
 282     return 0;
 283 }
 284
 285 void MyApp::CreateStyles()
 286 {
 287     // Paragraph styles
 288
 289     wxFont romanFont(12, wxROMAN, wxNORMAL, wxNORMAL);
 290     wxFont swissFont(12, wxSWISS, wxNORMAL, wxNORMAL);
 291
 292     wxRichTextParagraphStyleDefinition* normalPara = new wxRichTextParagraphStyleDefinition(wxT("Normal"));
 293     wxRichTextAttr normalAttr;
 294     normalAttr.SetFontFaceName(romanFont.GetFaceName());
 295     normalAttr.SetFontSize(12);
 296     // Let's set all attributes for this style
 297     normalAttr.SetFlags(wxTEXT_ATTR_FONT | wxTEXT_ATTR_BACKGROUND_COLOUR | wxTEXT_ATTR_TEXT_COLOUR|wxTEXT_ATTR_ALIGNMENT|wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT|wxTEXT_ATTR_TABS|
 298                             wxTEXT_ATTR_PARA_SPACING_BEFORE|wxTEXT_ATTR_PARA_SPACING_AFTER|wxTEXT_ATTR_LINE_SPACING|
 299                             wxTEXT_ATTR_BULLET_STYLE|wxTEXT_ATTR_BULLET_NUMBER);
 300     normalPara->SetStyle(normalAttr);
 301
 302     m_styleSheet->AddParagraphStyle(normalPara);
 303
 304     wxRichTextParagraphStyleDefinition* indentedPara = new wxRichTextParagraphStyleDefinition(wxT("Indented"));
 305     wxRichTextAttr indentedAttr;
 306     indentedAttr.SetFontFaceName(romanFont.GetFaceName());
 307     indentedAttr.SetFontSize(12);
 308     indentedAttr.SetLeftIndent(100, 0);
 309     // We only want to affect indentation
 310     indentedAttr.SetFlags(wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT);
 311     indentedPara->SetStyle(indentedAttr);
 312
 313     m_styleSheet->AddParagraphStyle(indentedPara);
 314
 315     wxRichTextParagraphStyleDefinition* flIndentedPara = new wxRichTextParagraphStyleDefinition(wxT("First Line Indented"));
 316     wxRichTextAttr flIndentedAttr;
 317     flIndentedAttr.SetFontFaceName(swissFont.GetFaceName());
 318     flIndentedAttr.SetFontSize(12);
 319     flIndentedAttr.SetLeftIndent(100, -100);
 320     // We only want to affect indentation
 321     flIndentedAttr.SetFlags(wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT);
 322     flIndentedPara->SetStyle(flIndentedAttr);
 323
 324     m_styleSheet->AddParagraphStyle(flIndentedPara);
 325
 326     // Character styles
 327
 328     wxRichTextCharacterStyleDefinition* boldDef = new wxRichTextCharacterStyleDefinition(wxT("Bold"));
 329     wxRichTextAttr boldAttr;
 330     boldAttr.SetFontFaceName(romanFont.GetFaceName());
 331     boldAttr.SetFontSize(12);
 332     boldAttr.SetFontWeight(wxBOLD);
 333     // We only want to affect boldness
 334     boldAttr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
 335     boldDef->SetStyle(boldAttr);
 336
 337     m_styleSheet->AddCharacterStyle(boldDef);
 338
 339     wxRichTextCharacterStyleDefinition* italicDef = new wxRichTextCharacterStyleDefinition(wxT("Italic"));
 340     wxRichTextAttr italicAttr;
 341     italicAttr.SetFontFaceName(romanFont.GetFaceName());
 342     italicAttr.SetFontSize(12);
 343     italicAttr.SetFontStyle(wxITALIC);
 344     // We only want to affect italics
 345     italicAttr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
 346     italicDef->SetStyle(italicAttr);
 347
 348     m_styleSheet->AddCharacterStyle(italicDef);
 349
 350     wxRichTextCharacterStyleDefinition* redDef = new wxRichTextCharacterStyleDefinition(wxT("Red Bold"));
 351     wxRichTextAttr redAttr;
 352     redAttr.SetFontFaceName(romanFont.GetFaceName());
 353     redAttr.SetFontSize(12);
 354     redAttr.SetFontWeight(wxBOLD);
 355     redAttr.SetTextColour(*wxRED);
 356     // We only want to affect colour, weight and face
 357     redAttr.SetFlags(wxTEXT_ATTR_FONT_FACE|wxTEXT_ATTR_FONT_WEIGHT|wxTEXT_ATTR_TEXT_COLOUR);
 358     redDef->SetStyle(redAttr);
 359
 360     m_styleSheet->AddCharacterStyle(redDef);
 361 }
 362
 363 // ----------------------------------------------------------------------------
 364 // main frame
 365 // ----------------------------------------------------------------------------
 366
 367 // frame constructor
 368 MyFrame::MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos,
 369         const wxSize& size, long style)
 370        : wxFrame(NULL, id, title, pos, size, style)
 371 {
 372     // set the frame icon
 373     SetIcon(sample_xpm);
 374
 375     // create a menu bar
 376     wxMenu *fileMenu = new wxMenu;
 377
 378     // the "About" item should be in the help menu
 379     wxMenu *helpMenu = new wxMenu;
 380     helpMenu->Append(ID_About, _T("&About...\tF1"), _T("Show about dialog"));
 381
 382     fileMenu->Append(wxID_OPEN, _T("&Open\tCtrl+O"), _T("Open a file"));
 383     fileMenu->Append(wxID_SAVE, _T("&Save\tCtrl+S"), _T("Save a file"));
 384     fileMenu->Append(wxID_SAVEAS, _T("&Save As...\tF12"), _T("Save to a new file"));
 385     fileMenu->AppendSeparator();
 386     fileMenu->Append(ID_VIEW_HTML, _T("&View as HTML"), _T("View HTML"));
 387     fileMenu->AppendSeparator();
 388     fileMenu->Append(ID_Quit, _T("E&xit\tAlt+X"), _T("Quit this program"));
 389
 390     wxMenu* editMenu = new wxMenu;
 391     editMenu->Append(wxID_UNDO, _("&Undo\tCtrl+Z"));
 392     editMenu->Append(wxID_REDO, _("&Redo\tCtrl+Y"));
 393     editMenu->AppendSeparator();
 394     editMenu->Append(wxID_CUT, _("Cu&t\tCtrl+X"));
 395     editMenu->Append(wxID_COPY, _("&Copy\tCtrl+C"));
 396     editMenu->Append(wxID_PASTE, _("&Paste\tCtrl+V"));
 397
 398     editMenu->Append(wxID_CLEAR, _("&Delete\tDel"));
 399
 400     editMenu->AppendSeparator();
 401     editMenu->Append(wxID_SELECTALL, _("Select A&ll\tCtrl+A"));
 402 #if 0
 403     editMenu->AppendSeparator();
 404     editMenu->Append(wxID_FIND, _("&Find...\tCtrl+F"));
 405     editMenu->Append(stID_FIND_REPLACE, _("&Replace...\tCtrl+R"));
 406 #endif
 407
 408     wxMenu* formatMenu = new wxMenu;
 409     formatMenu->AppendCheckItem(ID_FORMAT_BOLD, _("&Bold\tCtrl+B"));
 410     formatMenu->AppendCheckItem(ID_FORMAT_ITALIC, _("&Italic\tCtrl+I"));
 411     formatMenu->AppendCheckItem(ID_FORMAT_UNDERLINE, _("&Underline\tCtrl+U"));
 412     formatMenu->AppendSeparator();
 413     formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_LEFT, _("L&eft Align"));
 414     formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_RIGHT, _("&Right Align"));
 415     formatMenu->AppendCheckItem(ID_FORMAT_ALIGN_CENTRE, _("&Centre"));
 416     formatMenu->AppendSeparator();
 417     formatMenu->Append(ID_FORMAT_INDENT_MORE, _("Indent &More"));
 418     formatMenu->Append(ID_FORMAT_INDENT_LESS, _("Indent &Less"));
 419     formatMenu->AppendSeparator();
 420     formatMenu->Append(ID_FORMAT_PARAGRAPH_SPACING_MORE, _("Increase Paragraph &Spacing"));
 421     formatMenu->Append(ID_FORMAT_PARAGRAPH_SPACING_LESS, _("Decrease &Paragraph Spacing"));
 422     formatMenu->AppendSeparator();
 423     formatMenu->Append(ID_FORMAT_LINE_SPACING_SINGLE, _("Normal Line Spacing"));
 424     formatMenu->Append(ID_FORMAT_LINE_SPACING_HALF, _("1.5 Line Spacing"));
 425     formatMenu->Append(ID_FORMAT_LINE_SPACING_DOUBLE, _("Double Line Spacing"));
 426     formatMenu->AppendSeparator();
 427     formatMenu->Append(ID_FORMAT_FONT, _("&Font..."));
 428
 429     // now append the freshly created menu to the menu bar...
 430     wxMenuBar *menuBar = new wxMenuBar();
 431     menuBar->Append(fileMenu, _T("&File"));
 432     menuBar->Append(editMenu, _T("&Edit"));
 433     menuBar->Append(formatMenu, _T("F&ormat"));
 434     menuBar->Append(helpMenu, _T("&Help"));
 435
 436     // ... and attach this menu bar to the frame
 437     SetMenuBar(menuBar);
 438
 439     // create a status bar just for fun (by default with 1 pane only)
 440 #if wxUSE_STATUSBAR
 441     CreateStatusBar(2);
 442     SetStatusText(_T("Welcome to wxRichTextCtrl!"));
 443 #endif
 444
 445     wxToolBar* toolBar = CreateToolBar();
 446
 447     toolBar->AddTool(wxID_OPEN, wxBitmap(open_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Open"));
 448     toolBar->AddTool(wxID_SAVEAS, wxBitmap(save_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Save"));
 449     toolBar->AddSeparator();
 450     toolBar->AddTool(wxID_CUT, wxBitmap(cut_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Cut"));
 451     toolBar->AddTool(wxID_COPY, wxBitmap(copy_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Copy"));
 452     toolBar->AddTool(wxID_PASTE, wxBitmap(paste_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Paste"));
 453     toolBar->AddSeparator();
 454     toolBar->AddTool(wxID_UNDO, wxBitmap(undo_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Undo"));
 455     toolBar->AddTool(wxID_REDO, wxBitmap(redo_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Redo"));
 456     toolBar->AddSeparator();
 457     toolBar->AddTool(ID_FORMAT_BOLD, wxBitmap(bold_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Bold"));
 458     toolBar->AddTool(ID_FORMAT_ITALIC, wxBitmap(italic_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Italic"));
 459     toolBar->AddTool(ID_FORMAT_UNDERLINE, wxBitmap(underline_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Underline"));
 460     toolBar->AddSeparator();
 461     toolBar->AddTool(ID_FORMAT_ALIGN_LEFT, wxBitmap(alignleft_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Align Left"));
 462     toolBar->AddTool(ID_FORMAT_ALIGN_CENTRE, wxBitmap(centre_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Centre"));
 463     toolBar->AddTool(ID_FORMAT_ALIGN_RIGHT, wxBitmap(alignright_xpm), wxNullBitmap, true, -1, -1, (wxObject *) NULL, _("Align Right"));
 464     toolBar->AddSeparator();
 465     toolBar->AddTool(ID_FORMAT_INDENT_LESS, wxBitmap(indentless_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Indent Less"));
 466     toolBar->AddTool(ID_FORMAT_INDENT_MORE, wxBitmap(indentmore_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Indent More"));
 467     toolBar->AddSeparator();
 468     toolBar->AddTool(ID_FORMAT_FONT, wxBitmap(font_xpm), wxNullBitmap, false, -1, -1, (wxObject *) NULL, _("Font"));
 469
 470     toolBar->Realize();
 471
 472     wxSplitterWindow* splitter = new wxSplitterWindow(this, wxID_ANY, wxDefaultPosition, GetClientSize(), wxSP_NO_XP_THEME|wxSP_3D|wxSP_LIVE_UPDATE);
 473
 474     wxFont textFont = wxFont(12, wxROMAN, wxNORMAL, wxNORMAL);
 475     wxFont boldFont = wxFont(12, wxROMAN, wxNORMAL, wxBOLD);
 476     wxFont italicFont = wxFont(12, wxROMAN, wxITALIC, wxNORMAL);
 477
 478     m_richTextCtrl = new wxRichTextCtrl(splitter, wxID_ANY, wxDefaultPosition, wxSize(200, 200), wxVSCROLL|wxHSCROLL|wxNO_BORDER);
 479     wxFont font(12, wxROMAN, wxNORMAL, wxNORMAL);
 480
 481 #ifdef __WXMAC__
 482     font.SetNoAntiAliasing(true);
 483 #endif
 484     m_richTextCtrl->SetFont(font);
 485
 486     wxRichTextStyleListBox* styleListBox = new wxRichTextStyleListBox(splitter, wxID_ANY);
 487     splitter->SplitVertically(m_richTextCtrl, styleListBox, 400);
 488
 489     splitter->UpdateSize();
 490
 491     styleListBox->SetStyleSheet(wxGetApp().GetStyleSheet());
 492     styleListBox->SetRichTextCtrl(m_richTextCtrl);
 493     styleListBox->UpdateStyles();
 494
 495     wxRichTextCtrl& r = *m_richTextCtrl;
 496
 497     r.BeginSuppressUndo();
 498
 499     r.BeginParagraphSpacing(0, 20);
 500
 501     r.BeginAlignment(wxTEXT_ALIGNMENT_CENTRE);
 502     r.BeginBold();
 503
 504     r.BeginFontSize(14);
 505     r.WriteText(wxT("Welcome to wxRichTextCtrl, a wxWidgets control for editing and presenting styled text and images"));
 506     r.EndFontSize();
 507     r.Newline();
 508
 509     r.BeginItalic();
 510     r.WriteText(wxT("by Julian Smart"));
 511     r.EndItalic();
 512
 513     r.EndBold();
 514
 515     r.Newline();
 516     r.WriteImage(wxBitmap(zebra_xpm));
 517
 518     r.EndAlignment();
 519
 520     r.Newline();
 521     r.Newline();
 522
 523     r.WriteText(wxT("What can you do with this thing? "));
 524     r.WriteImage(wxBitmap(smiley_xpm));
 525     r.WriteText(wxT(" Well, you can change text "));
 526
 527     r.BeginTextColour(wxColour(255, 0, 0));
 528     r.WriteText(wxT("colour, like this red bit."));
 529     r.EndTextColour();
 530
 531     r.BeginTextColour(wxColour(0, 0, 255));
 532     r.WriteText(wxT(" And this blue bit."));
 533     r.EndTextColour();
 534
 535     r.WriteText(wxT(" Naturally you can make things "));
 536     r.BeginBold();
 537     r.WriteText(wxT("bold "));
 538     r.EndBold();
 539     r.BeginItalic();
 540     r.WriteText(wxT("or italic "));
 541     r.EndItalic();
 542     r.BeginUnderline();
 543     r.WriteText(wxT("or underlined."));
 544     r.EndUnderline();
 545
 546     r.BeginFontSize(14);
 547     r.WriteText(wxT(" Different font sizes on the same line is allowed, too."));
 548     r.EndFontSize();
 549
 550     r.WriteText(wxT(" Next we'll show an indented paragraph."));
 551
 552     r.BeginLeftIndent(60);
 553     r.Newline();
 554
 555     r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
 556     r.EndLeftIndent();
 557
 558     r.Newline();
 559
 560     r.WriteText(wxT("Next, we'll show a first-line indent, achieved using BeginLeftIndent(100, -40)."));
 561
 562     r.BeginLeftIndent(100, -40);
 563     r.Newline();
 564
 565     r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
 566     r.EndLeftIndent();
 567
 568     r.Newline();
 569
 570     r.WriteText(wxT("Numbered bullets are possible, again using subindents:"));
 571
 572     r.BeginNumberedBullet(1, 100, 60);
 573     r.Newline();
 574
 575     r.WriteText(wxT("This is my first item. Note that wxRichTextCtrl doesn't automatically do numbering, but this will be added later."));
 576     r.EndNumberedBullet();
 577
 578     r.BeginNumberedBullet(2, 100, 60);
 579     r.Newline();
 580
 581     r.WriteText(wxT("This is my second item."));
 582     r.EndNumberedBullet();
 583
 584     r.Newline();
 585
 586     r.WriteText(wxT("The following paragraph is right-indented:"));
 587
 588     r.BeginRightIndent(200);
 589     r.Newline();
 590
 591     r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
 592     r.EndRightIndent();
 593
 594     r.Newline();
 595
 596     r.WriteText(wxT("The following paragraph is right-aligned with 1.5 line spacing:"));
 597
 598     r.BeginAlignment(wxTEXT_ALIGNMENT_RIGHT);
 599     r.BeginLineSpacing(wxTEXT_ATTR_LINE_SPACING_HALF);
 600     r.Newline();
 601
 602     r.WriteText(wxT("It was in January, the most down-trodden month of an Edinburgh winter. An attractive woman came into the cafe, which is nothing remarkable."));
 603     r.EndLineSpacing();
 604     r.EndAlignment();
 605
 606     r.Newline();
 607     r.WriteText(wxT("Other notable features of wxRichTextCtrl include:"));
 608
 609     r.BeginSymbolBullet(wxT('*'), 100, 60);
 610     r.Newline();
 611     r.WriteText(wxT("Compatibility with wxTextCtrl API"));
 612     r.EndSymbolBullet();
 613
 614     r.BeginSymbolBullet(wxT('*'), 100, 60);
 615     r.Newline();
 616     r.WriteText(wxT("Easy stack-based BeginXXX()...EndXXX() style setting in addition to SetStyle()"));
 617     r.EndSymbolBullet();
 618
 619     r.BeginSymbolBullet(wxT('*'), 100, 60);
 620     r.Newline();
 621     r.WriteText(wxT("XML loading and saving"));
 622     r.EndSymbolBullet();
 623
 624     r.BeginSymbolBullet(wxT('*'), 100, 60);
 625     r.Newline();
 626     r.WriteText(wxT("Undo/Redo, with batching option and Undo suppressing"));
 627     r.EndSymbolBullet();
 628
 629     r.BeginSymbolBullet(wxT('*'), 100, 60);
 630     r.Newline();
 631     r.WriteText(wxT("Clipboard copy and paste"));
 632     r.EndSymbolBullet();
 633
 634     r.BeginSymbolBullet(wxT('*'), 100, 60);
 635     r.Newline();
 636     r.WriteText(wxT("wxRichTextStyleSheet with named character and paragraph styles, and control for applying named styles"));
 637     r.EndSymbolBullet();
 638
 639     r.BeginSymbolBullet(wxT('*'), 100, 60);
 640     r.Newline();
 641     r.WriteText(wxT("A design that can easily be extended to other content types, ultimately with text boxes, tables, controls, and so on"));
 642     r.EndSymbolBullet();
 643
 644     r.Newline();
 645
 646     r.WriteText(wxT("Note: this sample content was generated programmatically from within the MyFrame constructor in the demo. The images were loaded from inline XPMs. Enjoy wxRichTextCtrl!"));
 647
 648     r.EndParagraphSpacing();
 649
 650     r.EndSuppressUndo();
 651 }
 652
 653
 654 // event handlers
 655
 656 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 657 {
 658     // true is to force the frame to close
 659     Close(true);
 660 }
 661
 662 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 663 {
 664     wxString msg;
 665     msg.Printf( _T("This is a demo for wxRichTextCtrl, a control for editing styled text.\n(c) Julian Smart, 2005"));
 666     wxMessageBox(msg, _T("About wxRichTextCtrl Sample"), wxOK | wxICON_INFORMATION, this);
 667 }
 668
 669 // Forward command events to the current rich text control, if any
 670 bool MyFrame::ProcessEvent(wxEvent& event)
 671 {
 672     if (event.IsCommandEvent() && !event.IsKindOf(CLASSINFO(wxChildFocusEvent)))
 673     {
 674         // Problem: we can get infinite recursion because the events
 675         // climb back up to this frame, and repeat.
 676         // Assume that command events don't cause another command event
 677         // to be called, so we can rely on inCommand not being overwritten
 678
 679         static int s_eventType = 0;
 680         static wxWindowID s_id = 0;
 681
 682         if (s_id != event.GetId() && s_eventType != event.GetEventType())
 683         {
 684             s_eventType = event.GetEventType();
 685             s_id = event.GetId();
 686
 687             wxWindow* focusWin = wxFindFocusDescendant(this);
 688             if (focusWin && focusWin->ProcessEvent(event))
 689             {
 690                 //s_command = NULL;
 691                 s_eventType = 0;
 692                 s_id = 0;
 693                 return true;
 694             }
 695
 696             s_eventType = 0;
 697             s_id = 0;
 698         }
 699         else
 700         {
 701             return false;
 702         }
 703     }
 704
 705     return wxFrame::ProcessEvent(event);
 706 }
 707
 708 void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
 709 {
 710     wxString path;
 711     wxString filename;
 712     wxArrayInt fileTypes;
 713
 714     wxString filter = wxRichTextBuffer::GetExtWildcard(false, false, & fileTypes);
 715     if (!filter.empty())
 716         filter += wxT("|");
 717     filter += wxT("All files (*.*)|*.*");
 718
 719     wxFileDialog dialog(this,
 720         _("Choose a filename"),
 721         path,
 722         filename,
 723         filter,
 724         wxFD_OPEN);
 725
 726     if (dialog.ShowModal() == wxID_OK)
 727     {
 728         wxString path = dialog.GetPath();
 729
 730         if (!path.empty())
 731         {
 732             int filterIndex = dialog.GetFilterIndex();
 733             int fileType = (filterIndex < (int) fileTypes.GetCount())
 734                            ? fileTypes[filterIndex]
 735                            : wxRICHTEXT_TYPE_TEXT;
 736             m_richTextCtrl->LoadFile(path, fileType);
 737         }
 738     }
 739 }
 740
 741 void MyFrame::OnSave(wxCommandEvent& event)
 742 {
 743     if (m_richTextCtrl->GetFilename().empty())
 744     {
 745         OnSaveAs(event);
 746         return;
 747     }
 748     m_richTextCtrl->SaveFile();
 749 }
 750
 751 void MyFrame::OnSaveAs(wxCommandEvent& WXUNUSED(event))
 752 {
 753     wxString filter = wxRichTextBuffer::GetExtWildcard(false, true);
 754     wxString path;
 755     wxString filename;
 756
 757     wxFileDialog dialog(this,
 758         _("Choose a filename"),
 759         path,
 760         filename,
 761         filter,
 762         wxFD_SAVE);
 763
 764     if (dialog.ShowModal() == wxID_OK)
 765     {
 766         wxString path = dialog.GetPath();
 767
 768         if (!path.empty())
 769         {
 770             m_richTextCtrl->SaveFile(path);
 771         }
 772     }
 773 }
 774
 775 void MyFrame::OnBold(wxCommandEvent& WXUNUSED(event))
 776 {
 777     m_richTextCtrl->ApplyBoldToSelection();
 778 }
 779
 780 void MyFrame::OnItalic(wxCommandEvent& WXUNUSED(event))
 781 {
 782     m_richTextCtrl->ApplyItalicToSelection();
 783 }
 784
 785 void MyFrame::OnUnderline(wxCommandEvent& WXUNUSED(event))
 786 {
 787     m_richTextCtrl->ApplyUnderlineToSelection();
 788 }
 789
 790
 791 void MyFrame::OnUpdateBold(wxUpdateUIEvent& event)
 792 {
 793     event.Check(m_richTextCtrl->IsSelectionBold());
 794 }
 795
 796 void MyFrame::OnUpdateItalic(wxUpdateUIEvent& event)
 797 {
 798     event.Check(m_richTextCtrl->IsSelectionItalics());
 799 }
 800
 801 void MyFrame::OnUpdateUnderline(wxUpdateUIEvent& event)
 802 {
 803     event.Check(m_richTextCtrl->IsSelectionUnderlined());
 804 }
 805
 806 void MyFrame::OnAlignLeft(wxCommandEvent& WXUNUSED(event))
 807 {
 808     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_LEFT);
 809 }
 810
 811 void MyFrame::OnAlignCentre(wxCommandEvent& WXUNUSED(event))
 812 {
 813     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_CENTRE);
 814 }
 815
 816 void MyFrame::OnAlignRight(wxCommandEvent& WXUNUSED(event))
 817 {
 818     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_RIGHT);
 819 }
 820
 821 void MyFrame::OnUpdateAlignLeft(wxUpdateUIEvent& event)
 822 {
 823     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_LEFT));
 824 }
 825
 826 void MyFrame::OnUpdateAlignCentre(wxUpdateUIEvent& event)
 827 {
 828     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_CENTRE));
 829 }
 830
 831 void MyFrame::OnUpdateAlignRight(wxUpdateUIEvent& event)
 832 {
 833     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_RIGHT));
 834 }
 835
 836 void MyFrame::OnFont(wxCommandEvent& WXUNUSED(event))
 837 {
 838     if (!m_richTextCtrl->HasSelection())
 839         return;
 840
 841     wxRichTextRange range = m_richTextCtrl->GetSelectionRange();
 842     wxFontData fontData;
 843
 844     wxTextAttrEx attr;
 845     attr.SetFlags(wxTEXT_ATTR_FONT);
 846
 847     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 848         fontData.SetInitialFont(attr.GetFont());
 849
 850     wxFontDialog dialog(this, fontData);
 851     if (dialog.ShowModal() == wxID_OK)
 852     {
 853         fontData = dialog.GetFontData();
 854         attr.SetFlags(wxTEXT_ATTR_FONT);
 855         attr.SetFont(fontData.GetChosenFont());
 856         if (attr.GetFont().Ok())
 857         {
 858             m_richTextCtrl->SetStyle(range, attr);
 859         }
 860     }
 861 }
 862
 863 void MyFrame::OnIndentMore(wxCommandEvent& WXUNUSED(event))
 864 {
 865     wxTextAttrEx attr;
 866     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 867
 868     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 869     {
 870         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 871         if (m_richTextCtrl->HasSelection())
 872             range = m_richTextCtrl->GetSelectionRange();
 873
 874         wxFontData fontData;
 875         attr.SetLeftIndent(attr.GetLeftIndent() + 100);
 876
 877         attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 878         m_richTextCtrl->SetStyle(range, attr);
 879     }
 880 }
 881
 882 void MyFrame::OnIndentLess(wxCommandEvent& WXUNUSED(event))
 883 {
 884     wxTextAttrEx attr;
 885     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 886
 887     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 888     {
 889         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 890         if (m_richTextCtrl->HasSelection())
 891             range = m_richTextCtrl->GetSelectionRange();
 892
 893         if (attr.GetLeftIndent() >= 100)
 894         {
 895             wxFontData fontData;
 896             attr.SetLeftIndent(attr.GetLeftIndent() - 100);
 897
 898             m_richTextCtrl->SetStyle(range, attr);
 899         }
 900     }
 901 }
 902
 903 void MyFrame::OnLineSpacingHalf(wxCommandEvent& WXUNUSED(event))
 904 {
 905     wxTextAttrEx attr;
 906     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 907
 908     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 909     {
 910         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 911         if (m_richTextCtrl->HasSelection())
 912             range = m_richTextCtrl->GetSelectionRange();
 913
 914         wxFontData fontData;
 915         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 916         attr.SetLineSpacing(15);
 917
 918         m_richTextCtrl->SetStyle(range, attr);
 919     }
 920 }
 921
 922 void MyFrame::OnLineSpacingDouble(wxCommandEvent& WXUNUSED(event))
 923 {
 924     wxTextAttrEx attr;
 925     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 926
 927     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 928     {
 929         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 930         if (m_richTextCtrl->HasSelection())
 931             range = m_richTextCtrl->GetSelectionRange();
 932
 933         wxFontData fontData;
 934         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 935         attr.SetLineSpacing(20);
 936
 937         m_richTextCtrl->SetStyle(range, attr);
 938     }
 939 }
 940
 941 void MyFrame::OnLineSpacingSingle(wxCommandEvent& WXUNUSED(event))
 942 {
 943     wxTextAttrEx attr;
 944     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 945
 946     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 947     {
 948         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 949         if (m_richTextCtrl->HasSelection())
 950             range = m_richTextCtrl->GetSelectionRange();
 951
 952         wxFontData fontData;
 953         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 954         attr.SetLineSpacing(0); // Can also use 10
 955
 956         m_richTextCtrl->SetStyle(range, attr);
 957     }
 958 }
 959
 960 void MyFrame::OnParagraphSpacingMore(wxCommandEvent& WXUNUSED(event))
 961 {
 962     wxTextAttrEx attr;
 963     attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 964
 965     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 966     {
 967         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 968         if (m_richTextCtrl->HasSelection())
 969             range = m_richTextCtrl->GetSelectionRange();
 970
 971         wxFontData fontData;
 972         attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() + 20);
 973
 974         attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 975         m_richTextCtrl->SetStyle(range, attr);
 976     }
 977 }
 978
 979 void MyFrame::OnParagraphSpacingLess(wxCommandEvent& WXUNUSED(event))
 980 {
 981     wxTextAttrEx attr;
 982     attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 983
 984     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 985     {
 986         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 987         if (m_richTextCtrl->HasSelection())
 988             range = m_richTextCtrl->GetSelectionRange();
 989
 990         if (attr.GetParagraphSpacingAfter() >= 20)
 991         {
 992             wxFontData fontData;
 993             attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() - 20);
 994
 995             attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 996             m_richTextCtrl->SetStyle(range, attr);
 997         }
 998     }
 999 }
1000
1001 void MyFrame::OnViewHTML(wxCommandEvent& WXUNUSED(event))
1002 {
1003     wxDialog dialog(this, wxID_ANY, _("HTML"), wxDefaultPosition, wxSize(500, 400), wxDEFAULT_DIALOG_STYLE);
1004
1005     wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
1006     dialog.SetSizer(boxSizer);
1007
1008     wxHtmlWindow* win = new wxHtmlWindow(& dialog, wxID_ANY, wxDefaultPosition, wxSize(500, 400), wxSUNKEN_BORDER);
1009     boxSizer->Add(win, 1, wxALL, 5);
1010
1011     wxButton* cancelButton = new wxButton(& dialog, wxID_CANCEL, wxT("&Close"));
1012     boxSizer->Add(cancelButton, 0, wxALL|wxCENTRE, 5);
1013
1014     wxString text;
1015     wxStringOutputStream strStream(& text);
1016
1017     wxRichTextHTMLHandler htmlHandler;
1018     if (htmlHandler.SaveFile(& m_richTextCtrl->GetBuffer(), strStream))
1019     {
1020         win->SetPage(text);
1021     }
1022
1023     boxSizer->Fit(& dialog);
1024
1025     dialog.ShowModal();
1026 }