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