samples/richtext/richtext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        richedit.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, _("I&ndent &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     CreateStatusBar(2);
 440     SetStatusText(_T("Welcome to wxRichTextCtrl!"));
 441
 442     wxToolBar* toolBar = CreateToolBar();
 443
 444     toolBar->AddTool(wxID_OPEN, wxBitmap(open_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Open"));
 445     toolBar->AddTool(wxID_SAVEAS, wxBitmap(save_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Save"));
 446     toolBar->AddSeparator();
 447     toolBar->AddTool(wxID_CUT, wxBitmap(cut_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Cut"));
 448     toolBar->AddTool(wxID_COPY, wxBitmap(copy_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Copy"));
 449     toolBar->AddTool(wxID_PASTE, wxBitmap(paste_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Paste"));
 450     toolBar->AddSeparator();
 451     toolBar->AddTool(wxID_UNDO, wxBitmap(undo_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Undo"));
 452     toolBar->AddTool(wxID_REDO, wxBitmap(redo_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Redo"));
 453     toolBar->AddSeparator();
 454     toolBar->AddTool(ID_FORMAT_BOLD, wxBitmap(bold_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Bold"));
 455     toolBar->AddTool(ID_FORMAT_ITALIC, wxBitmap(italic_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Italic"));
 456     toolBar->AddTool(ID_FORMAT_UNDERLINE, wxBitmap(underline_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Underline"));
 457     toolBar->AddSeparator();
 458     toolBar->AddTool(ID_FORMAT_ALIGN_LEFT, wxBitmap(alignleft_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Align Left"));
 459     toolBar->AddTool(ID_FORMAT_ALIGN_CENTRE, wxBitmap(centre_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Centre"));
 460     toolBar->AddTool(ID_FORMAT_ALIGN_RIGHT, wxBitmap(alignright_xpm), wxNullBitmap, TRUE, -1, -1, (wxObject *) NULL, _("Align Right"));
 461     toolBar->AddSeparator();
 462     toolBar->AddTool(ID_FORMAT_INDENT_LESS, wxBitmap(indentless_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Indent Less"));
 463     toolBar->AddTool(ID_FORMAT_INDENT_MORE, wxBitmap(indentmore_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Indent More"));
 464     toolBar->AddSeparator();
 465     toolBar->AddTool(ID_FORMAT_FONT, wxBitmap(font_xpm), wxNullBitmap, FALSE, -1, -1, (wxObject *) NULL, _("Font"));
 466
 467     toolBar->Realize();
 468
 469     wxSplitterWindow* splitter = new wxSplitterWindow(this, wxID_ANY, wxDefaultPosition, wxSize(100, 100), wxSP_NO_XP_THEME|wxSP_3D|wxSP_LIVE_UPDATE);
 470
 471
 472     wxFont textFont = wxFont(12, wxROMAN, wxNORMAL, wxNORMAL);
 473     wxFont boldFont = wxFont(12, wxROMAN, wxNORMAL, wxBOLD);
 474     wxFont italicFont = wxFont(12, wxROMAN, wxITALIC, wxNORMAL);
 475
 476     m_richTextCtrl = new wxRichTextCtrl(splitter, wxID_ANY, wxDefaultPosition, wxSize(200, 200), wxVSCROLL|wxHSCROLL|wxNO_BORDER);
 477     m_richTextCtrl->SetFont(wxFont(12, wxROMAN, wxNORMAL, wxNORMAL));
 478
 479     wxRichTextStyleListBox* styleListBox = new wxRichTextStyleListBox(splitter, wxID_ANY);
 480     splitter->SplitVertically(m_richTextCtrl, styleListBox, 400);
 481
 482     styleListBox->SetStyleSheet(wxGetApp().GetStyleSheet());
 483     styleListBox->SetRichTextCtrl(m_richTextCtrl);
 484     styleListBox->UpdateStyles();
 485
 486     wxRichTextCtrl& r = *m_richTextCtrl;
 487
 488     r.BeginSuppressUndo();
 489
 490     r.BeginParagraphSpacing(0, 20);
 491
 492     r.BeginAlignment(wxTEXT_ALIGNMENT_CENTRE);
 493     r.BeginBold();
 494
 495     r.BeginFontSize(14);
 496     r.WriteText(wxT("Welcome to wxRichTextCtrl, a wxWidgets control for editing and presenting styled text and images"));
 497     r.EndFontSize();
 498     r.Newline();
 499
 500     r.BeginItalic();
 501     r.WriteText(wxT("by Julian Smart"));
 502     r.EndItalic();
 503
 504     r.EndBold();
 505
 506     r.Newline();
 507     r.WriteImage(wxBitmap(zebra_xpm));
 508
 509     r.EndAlignment();
 510
 511     r.Newline();
 512     r.Newline();
 513
 514     r.WriteText(wxT("What can you do with this thing? "));
 515     r.WriteImage(wxBitmap(smiley_xpm));
 516     r.WriteText(wxT(" Well, you can change text "));
 517
 518     r.BeginTextColour(wxColour(255, 0, 0));
 519     r.WriteText(wxT("colour, like this red bit."));
 520     r.EndTextColour();
 521
 522     r.BeginTextColour(wxColour(0, 0, 255));
 523     r.WriteText(wxT(" And this blue bit."));
 524     r.EndTextColour();
 525
 526     r.WriteText(wxT(" Naturally you can make things "));
 527     r.BeginBold();
 528     r.WriteText(wxT("bold "));
 529     r.EndBold();
 530     r.BeginItalic();
 531     r.WriteText(wxT("or italic "));
 532     r.EndItalic();
 533     r.BeginUnderline();
 534     r.WriteText(wxT("or underlined."));
 535     r.EndUnderline();
 536
 537     r.BeginFontSize(14);
 538     r.WriteText(wxT(" Different font sizes on the same line is allowed, too."));
 539     r.EndFontSize();
 540
 541     r.WriteText(wxT(" Next we'll show an indented paragraph."));
 542
 543     r.BeginLeftIndent(60);
 544     r.Newline();
 545
 546     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."));
 547     r.EndLeftIndent();
 548
 549     r.Newline();
 550
 551     r.WriteText(wxT("Next, we'll show a first-line indent, achieved using BeginLeftIndent(100, -40)."));
 552
 553     r.BeginLeftIndent(100, -40);
 554     r.Newline();
 555
 556     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."));
 557     r.EndLeftIndent();
 558
 559     r.Newline();
 560
 561     r.WriteText(wxT("Numbered bullets are possible, again using subindents:"));
 562
 563     r.BeginNumberedBullet(1, 100, 60);
 564     r.Newline();
 565
 566     r.WriteText(wxT("This is my first item. Note that wxRichTextCtrl doesn't automatically do numbering, but this will be added later."));
 567     r.EndNumberedBullet();
 568
 569     r.BeginNumberedBullet(2, 100, 60);
 570     r.Newline();
 571
 572     r.WriteText(wxT("This is my second item."));
 573     r.EndNumberedBullet();
 574
 575     r.Newline();
 576
 577     r.WriteText(wxT("The following paragraph is right-indented:"));
 578
 579     r.BeginRightIndent(200);
 580     r.Newline();
 581
 582     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."));
 583     r.EndRightIndent();
 584
 585     r.Newline();
 586
 587     r.WriteText(wxT("The following paragraph is right-aligned with 1.5 line spacing:"));
 588
 589     r.BeginAlignment(wxTEXT_ALIGNMENT_RIGHT);
 590     r.BeginLineSpacing(wxTEXT_ATTR_LINE_SPACING_HALF);
 591     r.Newline();
 592
 593     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."));
 594     r.EndLineSpacing();
 595     r.EndAlignment();
 596
 597     r.Newline();
 598     r.WriteText(wxT("Other notable features of wxRichTextCtrl include:"));
 599
 600     r.BeginSymbolBullet(wxT('*'), 100, 60);
 601     r.Newline();
 602     r.WriteText(wxT("Compatibility with wxTextCtrl API"));
 603     r.EndSymbolBullet();
 604
 605     r.BeginSymbolBullet(wxT('*'), 100, 60);
 606     r.Newline();
 607     r.WriteText(wxT("Easy stack-based BeginXXX()...EndXXX() style setting in addition to SetStyle()"));
 608     r.EndSymbolBullet();
 609
 610     r.BeginSymbolBullet(wxT('*'), 100, 60);
 611     r.Newline();
 612     r.WriteText(wxT("XML loading and saving"));
 613     r.EndSymbolBullet();
 614
 615     r.BeginSymbolBullet(wxT('*'), 100, 60);
 616     r.Newline();
 617     r.WriteText(wxT("Undo/Redo, with batching option and Undo suppressing"));
 618     r.EndSymbolBullet();
 619
 620     r.BeginSymbolBullet(wxT('*'), 100, 60);
 621     r.Newline();
 622     r.WriteText(wxT("Clipboard copy and paste"));
 623     r.EndSymbolBullet();
 624
 625     r.BeginSymbolBullet(wxT('*'), 100, 60);
 626     r.Newline();
 627     r.WriteText(wxT("wxRichTextStyleSheet with named character and paragraph styles, and control for applying named styles"));
 628     r.EndSymbolBullet();
 629
 630     r.BeginSymbolBullet(wxT('*'), 100, 60);
 631     r.Newline();
 632     r.WriteText(wxT("A design that can easily be extended to other content types, ultimately with text boxes, tables, controls, and so on"));
 633     r.EndSymbolBullet();
 634
 635     r.Newline();
 636
 637     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!"));
 638
 639     r.EndParagraphSpacing();
 640
 641     r.EndSuppressUndo();
 642 }
 643
 644
 645 // event handlers
 646
 647 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 648 {
 649     // true is to force the frame to close
 650     Close(true);
 651 }
 652
 653 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 654 {
 655     wxString msg;
 656     msg.Printf( _T("This is a demo for wxRichTextCtrl, a control for editing styled text.\n(c) Julian Smart, 2005"));
 657     wxMessageBox(msg, _T("About wxRichTextCtrl Sample"), wxOK | wxICON_INFORMATION, this);
 658 }
 659
 660 // Forward command events to the current rich text control, if any
 661 bool MyFrame::ProcessEvent(wxEvent& event)
 662 {
 663     if (event.IsCommandEvent() && !event.IsKindOf(CLASSINFO(wxChildFocusEvent)))
 664     {
 665         // Problem: we can get infinite recursion because the events
 666         // climb back up to this frame, and repeat.
 667         // Assume that command events don't cause another command event
 668         // to be called, so we can rely on inCommand not being overwritten
 669
 670         static int s_eventType = 0;
 671         static wxWindowID s_id = 0;
 672
 673         if (s_id != event.GetId() && s_eventType != event.GetEventType())
 674         {
 675             s_eventType = event.GetEventType();
 676             s_id = event.GetId();
 677
 678             wxWindow* focusWin = wxFindFocusDescendant(this);
 679             if (focusWin && focusWin->ProcessEvent(event))
 680             {
 681                 //s_command = NULL;
 682                 s_eventType = 0;
 683                 s_id = 0;
 684                 return TRUE;
 685             }
 686
 687             s_eventType = 0;
 688             s_id = 0;
 689         }
 690         else
 691         {
 692             return FALSE;
 693         }
 694     }
 695
 696     return wxFrame::ProcessEvent(event);
 697 }
 698
 699 void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
 700 {
 701     wxString path = wxEmptyString;
 702     wxString filename = wxEmptyString;
 703     wxArrayInt fileTypes;
 704
 705     wxString filter = wxRichTextBuffer::GetExtWildcard(false, false, & fileTypes);
 706     if (!filter.IsEmpty())
 707         filter += wxT("|");
 708     filter += wxT("All files (*.*)|*.*");
 709
 710     wxFileDialog dialog(this,
 711         _("Choose a filename"),
 712         path,
 713         filename,
 714         filter,
 715         wxOPEN);
 716
 717     if (dialog.ShowModal() == wxID_OK)
 718     {
 719         wxString path = dialog.GetPath();
 720
 721         if (!path.IsEmpty())
 722         {
 723             int fileType = 0;
 724             int filterIndex = dialog.GetFilterIndex();
 725             if (filterIndex < (int) fileTypes.GetCount())
 726                 fileType = fileTypes[filterIndex];
 727             else
 728                 fileType = wxRICHTEXT_TYPE_TEXT;
 729             m_richTextCtrl->LoadFile(path, fileType);
 730         }
 731     }
 732 }
 733
 734 void MyFrame::OnSave(wxCommandEvent& event)
 735 {
 736     if (m_richTextCtrl->GetFilename().IsEmpty())
 737     {
 738         OnSaveAs(event);
 739         return;
 740     }
 741     m_richTextCtrl->SaveFile();
 742 }
 743
 744 void MyFrame::OnSaveAs(wxCommandEvent& WXUNUSED(event))
 745 {
 746     wxString filter = wxRichTextBuffer::GetExtWildcard(false, true);
 747     wxString path = wxEmptyString;
 748     wxString filename = wxEmptyString;
 749
 750     wxFileDialog dialog(this,
 751         _("Choose a filename"),
 752         path,
 753         filename,
 754         filter,
 755         wxSAVE);
 756
 757     if (dialog.ShowModal() == wxID_OK)
 758     {
 759         wxString path = dialog.GetPath();
 760
 761         if (!path.IsEmpty())
 762         {
 763             m_richTextCtrl->SaveFile(path);
 764         }
 765     }
 766 }
 767
 768 void MyFrame::OnBold(wxCommandEvent& WXUNUSED(event))
 769 {
 770     m_richTextCtrl->ApplyBoldToSelection();
 771 }
 772
 773 void MyFrame::OnItalic(wxCommandEvent& WXUNUSED(event))
 774 {
 775     m_richTextCtrl->ApplyItalicToSelection();
 776 }
 777
 778 void MyFrame::OnUnderline(wxCommandEvent& WXUNUSED(event))
 779 {
 780     m_richTextCtrl->ApplyUnderlineToSelection();
 781 }
 782
 783
 784 void MyFrame::OnUpdateBold(wxUpdateUIEvent& event)
 785 {
 786     event.Check(m_richTextCtrl->IsSelectionBold());
 787 }
 788
 789 void MyFrame::OnUpdateItalic(wxUpdateUIEvent& event)
 790 {
 791     event.Check(m_richTextCtrl->IsSelectionItalics());
 792 }
 793
 794 void MyFrame::OnUpdateUnderline(wxUpdateUIEvent& event)
 795 {
 796     event.Check(m_richTextCtrl->IsSelectionUnderlined());
 797 }
 798
 799 void MyFrame::OnAlignLeft(wxCommandEvent& WXUNUSED(event))
 800 {
 801     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_LEFT);
 802 }
 803
 804 void MyFrame::OnAlignCentre(wxCommandEvent& WXUNUSED(event))
 805 {
 806     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_CENTRE);
 807 }
 808
 809 void MyFrame::OnAlignRight(wxCommandEvent& WXUNUSED(event))
 810 {
 811     m_richTextCtrl->ApplyAlignmentToSelection(wxTEXT_ALIGNMENT_RIGHT);
 812 }
 813
 814 void MyFrame::OnUpdateAlignLeft(wxUpdateUIEvent& event)
 815 {
 816     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_LEFT));
 817 }
 818
 819 void MyFrame::OnUpdateAlignCentre(wxUpdateUIEvent& event)
 820 {
 821     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_CENTRE));
 822 }
 823
 824 void MyFrame::OnUpdateAlignRight(wxUpdateUIEvent& event)
 825 {
 826     event.Check(m_richTextCtrl->IsSelectionAligned(wxTEXT_ALIGNMENT_RIGHT));
 827 }
 828
 829 void MyFrame::OnFont(wxCommandEvent& WXUNUSED(event))
 830 {
 831     if (!m_richTextCtrl->HasSelection())
 832         return;
 833
 834     wxRichTextRange range = m_richTextCtrl->GetSelectionRange();
 835     wxFontData fontData;
 836
 837     wxTextAttrEx attr;
 838     attr.SetFlags(wxTEXT_ATTR_FONT);
 839
 840     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 841         fontData.SetInitialFont(attr.GetFont());
 842
 843     wxFontDialog dialog(this, fontData);
 844     if (dialog.ShowModal() == wxID_OK)
 845     {
 846         fontData = dialog.GetFontData();
 847         attr.SetFlags(wxTEXT_ATTR_FONT);
 848         attr.SetFont(fontData.GetChosenFont());
 849         if (attr.GetFont().Ok())
 850         {
 851             m_richTextCtrl->SetStyle(range, attr);
 852         }
 853     }
 854 }
 855
 856 void MyFrame::OnIndentMore(wxCommandEvent& WXUNUSED(event))
 857 {
 858     wxTextAttrEx attr;
 859     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 860
 861     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 862     {
 863         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 864         if (m_richTextCtrl->HasSelection())
 865             range = m_richTextCtrl->GetSelectionRange();
 866
 867         wxFontData fontData;
 868         attr.SetLeftIndent(attr.GetLeftIndent() + 100);
 869
 870         attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 871         m_richTextCtrl->SetStyle(range, attr);
 872     }
 873 }
 874
 875 void MyFrame::OnIndentLess(wxCommandEvent& WXUNUSED(event))
 876 {
 877     wxTextAttrEx attr;
 878     attr.SetFlags(wxTEXT_ATTR_LEFT_INDENT);
 879
 880     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 881     {
 882         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 883         if (m_richTextCtrl->HasSelection())
 884             range = m_richTextCtrl->GetSelectionRange();
 885
 886         if (attr.GetLeftIndent() >= 100)
 887         {
 888             wxFontData fontData;
 889             attr.SetLeftIndent(attr.GetLeftIndent() - 100);
 890
 891             m_richTextCtrl->SetStyle(range, attr);
 892         }
 893     }
 894 }
 895
 896 void MyFrame::OnLineSpacingHalf(wxCommandEvent& WXUNUSED(event))
 897 {
 898     wxTextAttrEx attr;
 899     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 900
 901     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 902     {
 903         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 904         if (m_richTextCtrl->HasSelection())
 905             range = m_richTextCtrl->GetSelectionRange();
 906
 907         wxFontData fontData;
 908         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 909         attr.SetLineSpacing(15);
 910
 911         m_richTextCtrl->SetStyle(range, attr);
 912     }
 913 }
 914
 915 void MyFrame::OnLineSpacingDouble(wxCommandEvent& WXUNUSED(event))
 916 {
 917     wxTextAttrEx attr;
 918     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 919
 920     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 921     {
 922         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 923         if (m_richTextCtrl->HasSelection())
 924             range = m_richTextCtrl->GetSelectionRange();
 925
 926         wxFontData fontData;
 927         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 928         attr.SetLineSpacing(20);
 929
 930         m_richTextCtrl->SetStyle(range, attr);
 931     }
 932 }
 933
 934 void MyFrame::OnLineSpacingSingle(wxCommandEvent& WXUNUSED(event))
 935 {
 936     wxTextAttrEx attr;
 937     attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 938
 939     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 940     {
 941         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 942         if (m_richTextCtrl->HasSelection())
 943             range = m_richTextCtrl->GetSelectionRange();
 944
 945         wxFontData fontData;
 946         attr.SetFlags(wxTEXT_ATTR_LINE_SPACING);
 947         attr.SetLineSpacing(0); // Can also use 10
 948
 949         m_richTextCtrl->SetStyle(range, attr);
 950     }
 951 }
 952
 953 void MyFrame::OnParagraphSpacingMore(wxCommandEvent& WXUNUSED(event))
 954 {
 955     wxTextAttrEx attr;
 956     attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 957
 958     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 959     {
 960         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 961         if (m_richTextCtrl->HasSelection())
 962             range = m_richTextCtrl->GetSelectionRange();
 963
 964         wxFontData fontData;
 965         attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() + 20);
 966
 967         attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 968         m_richTextCtrl->SetStyle(range, attr);
 969     }
 970 }
 971
 972 void MyFrame::OnParagraphSpacingLess(wxCommandEvent& WXUNUSED(event))
 973 {
 974     wxTextAttrEx attr;
 975     attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 976
 977     if (m_richTextCtrl->GetStyle(m_richTextCtrl->GetInsertionPoint(), attr))
 978     {
 979         wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint());
 980         if (m_richTextCtrl->HasSelection())
 981             range = m_richTextCtrl->GetSelectionRange();
 982
 983         if (attr.GetParagraphSpacingAfter() >= 20)
 984         {
 985             wxFontData fontData;
 986             attr.SetParagraphSpacingAfter(attr.GetParagraphSpacingAfter() - 20);
 987
 988             attr.SetFlags(wxTEXT_ATTR_PARA_SPACING_AFTER);
 989             m_richTextCtrl->SetStyle(range, attr);
 990         }
 991     }
 992 }
 993
 994 void MyFrame::OnViewHTML(wxCommandEvent& WXUNUSED(event))
 995 {
 996     wxDialog dialog(this, wxID_ANY, _("HTML"), wxDefaultPosition, wxSize(500, 400), wxDEFAULT_DIALOG_STYLE);
 997
 998     wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
 999     dialog.SetSizer(boxSizer);
1000
1001     wxHtmlWindow* win = new wxHtmlWindow(& dialog, wxID_ANY, wxDefaultPosition, wxSize(500, 400), wxSUNKEN_BORDER);
1002     boxSizer->Add(win, 1, wxALL, 5);
1003
1004     wxButton* cancelButton = new wxButton(& dialog, wxID_CANCEL, wxT("&Close"));
1005     boxSizer->Add(cancelButton, 0, wxALL|wxCENTRE, 5);
1006
1007     wxString text;
1008     wxStringOutputStream strStream(& text);
1009
1010     wxRichTextHTMLHandler htmlHandler;
1011     if (htmlHandler.SaveFile(& m_richTextCtrl->GetBuffer(), strStream))
1012     {
1013         win->SetPage(text);
1014     }
1015
1016     boxSizer->Fit(& dialog);
1017
1018     dialog.ShowModal();
1019 }
1020