samples/stc/edit.cpp

   1 //////////////////////////////////////////////////////////////////////////////
   2 // File:        edit.cpp
   3 // Purpose:     STC test module
   4 // Maintainer:  Wyo
   5 // Created:     2003-09-01
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) wxGuide
   8 // Licence:     wxWindows licence
   9 //////////////////////////////////////////////////////////////////////////////
  10
  11 //----------------------------------------------------------------------------
  12 // informations
  13 //----------------------------------------------------------------------------
  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' wxWindows headers)
  29 #ifndef WX_PRECOMP
  30     #include <wx/wx.h>
  31 #endif
  32
  33 //! wxWindows headers
  34 #include <wx/file.h>     // raw file io support
  35 #include <wx/filename.h> // filename support
  36
  37 //! application headers
  38 #include "defsext.h"     // additional definitions
  39
  40 #include "edit.h"        // edit module
  41
  42
  43 //----------------------------------------------------------------------------
  44 // resources
  45 //----------------------------------------------------------------------------
  46
  47
  48 //============================================================================
  49 // declarations
  50 //============================================================================
  51
  52
  53 //============================================================================
  54 // implementation
  55 //============================================================================
  56
  57 //----------------------------------------------------------------------------
  58 // Edit
  59 //----------------------------------------------------------------------------
  60
  61 BEGIN_EVENT_TABLE (Edit, wxStyledTextCtrl)
  62     // common
  63     EVT_SIZE (                         Edit::OnSize)
  64     // edit
  65     EVT_MENU (wxID_CLEAR,              Edit::OnEditClear)
  66     EVT_MENU (wxID_CUT,                Edit::OnEditCut)
  67     EVT_MENU (wxID_COPY,               Edit::OnEditCopy)
  68     EVT_MENU (wxID_PASTE,              Edit::OnEditPaste)
  69     EVT_MENU (myID_INDENTINC,          Edit::OnEditIndentInc)
  70     EVT_MENU (myID_INDENTRED,          Edit::OnEditIndentRed)
  71     EVT_MENU (wxID_SELECTALL,          Edit::OnEditSelectAll)
  72     EVT_MENU (myID_SELECTLINE,         Edit::OnEditSelectLine)
  73     EVT_MENU (wxID_REDO,               Edit::OnEditRedo)
  74     EVT_MENU (wxID_UNDO,               Edit::OnEditUndo)
  75     // find
  76     EVT_MENU (wxID_FIND,               Edit::OnFind)
  77     EVT_MENU (myID_FINDNEXT,           Edit::OnFindNext)
  78     EVT_MENU (myID_REPLACE,            Edit::OnReplace)
  79     EVT_MENU (myID_REPLACENEXT,        Edit::OnReplaceNext)
  80     EVT_MENU (myID_BRACEMATCH,         Edit::OnBraceMatch)
  81     EVT_MENU (myID_GOTO,               Edit::OnGoto)
  82     // view
  83     EVT_MENU_RANGE (myID_HILIGHTFIRST, myID_HILIGHTLAST,
  84                                        Edit::OnHilightLang)
  85     EVT_MENU (myID_DISPLAYEOL,         Edit::OnDisplayEOL)
  86     EVT_MENU (myID_INDENTGUIDE,        Edit::OnIndentGuide)
  87     EVT_MENU (myID_LINENUMBER,         Edit::OnLineNumber)
  88     EVT_MENU (myID_LONGLINEON,         Edit::OnLongLineOn)
  89     EVT_MENU (myID_WHITESPACE,         Edit::OnWhiteSpace)
  90     EVT_MENU (myID_FOLDTOGGLE,         Edit::OnFoldToggle)
  91     EVT_MENU (myID_OVERTYPE,           Edit::OnSetOverType)
  92     EVT_MENU (myID_READONLY,           Edit::OnSetReadOnly)
  93     EVT_MENU (myID_WRAPMODEON,         Edit::OnWrapmodeOn)
  94     EVT_MENU (myID_CHARSETANSI,        Edit::OnUseCharset)
  95     EVT_MENU (myID_CHARSETMAC,         Edit::OnUseCharset)
  96     // extra
  97     EVT_MENU (myID_CHANGELOWER,        Edit::OnChangeCase)
  98     EVT_MENU (myID_CHANGEUPPER,        Edit::OnChangeCase)
  99     EVT_MENU (myID_CONVERTCR,          Edit::OnConvertEOL)
 100     EVT_MENU (myID_CONVERTCRLF,        Edit::OnConvertEOL)
 101     EVT_MENU (myID_CONVERTLF,          Edit::OnConvertEOL)
 102     // stc
 103     EVT_STC_MARGINCLICK (-1,           Edit::OnMarginClick)
 104     EVT_STC_CHARADDED (-1,             Edit::OnCharAdded)
 105 END_EVENT_TABLE()
 106
 107 Edit::Edit (wxWindow *parent, wxWindowID id,
 108             const wxPoint &pos,
 109             const wxSize &size,
 110             long style)
 111     : wxStyledTextCtrl (parent, id, pos, size, style) {
 112
 113     m_filename = _T("");
 114
 115     m_LineNrID = 0;
 116     m_DividerID = 1;
 117     m_FoldingID = 2;
 118
 119     // initialize language
 120     m_language = NULL;
 121
 122     // default font for all styles
 123     SetViewEOL (g_CommonPrefs.displayEOLEnable);
 124     SetIndentationGuides (g_CommonPrefs.indentGuideEnable);
 125     SetEdgeMode (g_CommonPrefs.longLineOnEnable?
 126                  wxSTC_EDGE_LINE: wxSTC_EDGE_NONE);
 127     SetViewWhiteSpace (g_CommonPrefs.whiteSpaceEnable?
 128                        wxSTC_WS_VISIBLEALWAYS: wxSTC_WS_INVISIBLE);
 129     SetOvertype (g_CommonPrefs.overTypeInitial);
 130     SetReadOnly (g_CommonPrefs.readOnlyInitial);
 131     SetWrapMode (g_CommonPrefs.wrapModeInitial?
 132                  wxSTC_WRAP_WORD: wxSTC_WRAP_NONE);
 133     wxFont font (10, wxMODERN, wxNORMAL, wxNORMAL);
 134     StyleSetFont (wxSTC_STYLE_DEFAULT, font);
 135     StyleSetForeground (wxSTC_STYLE_DEFAULT, wxColour (_T("BLACK")));
 136     StyleSetBackground (wxSTC_STYLE_DEFAULT, wxColour (_T("WHITE")));
 137     StyleSetForeground (wxSTC_STYLE_LINENUMBER, wxColour (_T("DARK GREY")));
 138     StyleSetBackground (wxSTC_STYLE_LINENUMBER, wxColour (_T("WHITE")));
 139     StyleSetForeground(wxSTC_STYLE_INDENTGUIDE, wxColour (_T("DARK GREY")));
 140     InitializePrefs (DEFAULT_LANGUAGE);
 141
 142     // set visibility
 143     SetVisiblePolicy (wxSTC_VISIBLE_STRICT|wxSTC_VISIBLE_SLOP, 1);
 144     SetXCaretPolicy (wxSTC_CARET_EVEN|wxSTC_VISIBLE_STRICT|wxSTC_CARET_SLOP, 1);
 145     SetYCaretPolicy (wxSTC_CARET_EVEN|wxSTC_VISIBLE_STRICT|wxSTC_CARET_SLOP, 1);
 146
 147     // markers
 148     MarkerDefine (wxSTC_MARKNUM_FOLDER,        wxSTC_MARK_DOTDOTDOT, _T("BLACK"), _T("BLACK"));
 149     MarkerDefine (wxSTC_MARKNUM_FOLDEROPEN,    wxSTC_MARK_ARROWDOWN, _T("BLACK"), _T("BLACK"));
 150     MarkerDefine (wxSTC_MARKNUM_FOLDERSUB,     wxSTC_MARK_EMPTY,     _T("BLACK"), _T("BLACK"));
 151     MarkerDefine (wxSTC_MARKNUM_FOLDEREND,     wxSTC_MARK_DOTDOTDOT, _T("BLACK"), _T("WHITE"));
 152     MarkerDefine (wxSTC_MARKNUM_FOLDEROPENMID, wxSTC_MARK_ARROWDOWN, _T("BLACK"), _T("WHITE"));
 153     MarkerDefine (wxSTC_MARKNUM_FOLDERMIDTAIL, wxSTC_MARK_EMPTY,     _T("BLACK"), _T("BLACK"));
 154     MarkerDefine (wxSTC_MARKNUM_FOLDERTAIL,    wxSTC_MARK_EMPTY,     _T("BLACK"), _T("BLACK"));
 155
 156     // miscelaneous
 157     m_LineNrMargin = TextWidth (wxSTC_STYLE_LINENUMBER, _T("_999999"));
 158     m_FoldingMargin = 16;
 159     SetMarginWidth (m_LineNrID,
 160                     g_CommonPrefs.lineNumberEnable? m_LineNrMargin: 0);
 161     CmdKeyClear (wxSTC_KEY_TAB, 0); // this is done by the menu accelerator key
 162     SetLayoutCache (wxSTC_CACHE_PAGE);
 163
 164 }
 165
 166 Edit::~Edit () {}
 167
 168 //----------------------------------------------------------------------------
 169 // common event handlers
 170 void Edit::OnSize( wxSizeEvent& event ) {
 171     int x = GetClientSize().x +
 172             (g_CommonPrefs.lineNumberEnable? m_LineNrMargin: 0) +
 173             (g_CommonPrefs.foldEnable? m_FoldingMargin: 0);
 174     if (x > 0) SetScrollWidth (x);
 175     event.Skip();
 176 }
 177
 178 // edit event handlers
 179 void Edit::OnEditRedo (wxCommandEvent &WXUNUSED(event)) {
 180     if (!CanRedo()) return;
 181     Redo ();
 182 }
 183
 184 void Edit::OnEditUndo (wxCommandEvent &WXUNUSED(event)) {
 185     if (!CanUndo()) return;
 186     Undo ();
 187 }
 188
 189 void Edit::OnEditClear (wxCommandEvent &WXUNUSED(event)) {
 190     if (GetReadOnly()) return;
 191     Clear ();
 192 }
 193
 194 void Edit::OnEditCut (wxCommandEvent &WXUNUSED(event)) {
 195     if (GetReadOnly() || (GetSelectionEnd()-GetSelectionStart() <= 0)) return;
 196     Cut ();
 197 }
 198
 199 void Edit::OnEditCopy (wxCommandEvent &WXUNUSED(event)) {
 200     if (GetSelectionEnd()-GetSelectionStart() <= 0) return;
 201     Copy ();
 202 }
 203
 204 void Edit::OnEditPaste (wxCommandEvent &WXUNUSED(event)) {
 205     if (!CanPaste()) return;
 206     Paste ();
 207 }
 208
 209 void Edit::OnFind (wxCommandEvent &WXUNUSED(event)) {
 210 }
 211
 212 void Edit::OnFindNext (wxCommandEvent &WXUNUSED(event)) {
 213 }
 214
 215 void Edit::OnReplace (wxCommandEvent &WXUNUSED(event)) {
 216 }
 217
 218 void Edit::OnReplaceNext (wxCommandEvent &WXUNUSED(event)) {
 219 }
 220
 221 void Edit::OnBraceMatch (wxCommandEvent &WXUNUSED(event)) {
 222     int min = GetCurrentPos ();
 223     int max = BraceMatch (min);
 224     if (max > (min+1)) {
 225         BraceHighlight (min+1, max);
 226         SetSelection (min+1, max);
 227     }else{
 228         BraceBadLight (min);
 229     }
 230 }
 231
 232 void Edit::OnGoto (wxCommandEvent &WXUNUSED(event)) {
 233 }
 234
 235 void Edit::OnEditIndentInc (wxCommandEvent &WXUNUSED(event)) {
 236     CmdKeyExecute (wxSTC_CMD_TAB);
 237 }
 238
 239 void Edit::OnEditIndentRed (wxCommandEvent &WXUNUSED(event)) {
 240     CmdKeyExecute (wxSTC_CMD_DELETEBACK);
 241 }
 242
 243 void Edit::OnEditSelectAll (wxCommandEvent &WXUNUSED(event)) {
 244     SetSelection (0, GetTextLength ());
 245 }
 246
 247 void Edit::OnEditSelectLine (wxCommandEvent &WXUNUSED(event)) {
 248     int lineStart = PositionFromLine (GetCurrentLine());
 249     int lineEnd = PositionFromLine (GetCurrentLine() + 1);
 250     SetSelection (lineStart, lineEnd);
 251 }
 252
 253 void Edit::OnHilightLang (wxCommandEvent &event) {
 254     InitializePrefs (g_LanguagePrefs [event.GetId() - myID_HILIGHTFIRST].name);
 255 }
 256
 257 void Edit::OnDisplayEOL (wxCommandEvent &WXUNUSED(event)) {
 258     SetViewEOL (!GetViewEOL());
 259 }
 260
 261 void Edit::OnIndentGuide (wxCommandEvent &WXUNUSED(event)) {
 262     SetIndentationGuides (!GetIndentationGuides());
 263 }
 264
 265 void Edit::OnLineNumber (wxCommandEvent &WXUNUSED(event)) {
 266     SetMarginWidth (m_LineNrID,
 267                     GetMarginWidth (m_LineNrID) == 0? m_LineNrMargin: 0);
 268 }
 269
 270 void Edit::OnLongLineOn (wxCommandEvent &WXUNUSED(event)) {
 271     SetEdgeMode (GetEdgeMode() == 0? wxSTC_EDGE_LINE: wxSTC_EDGE_NONE);
 272 }
 273
 274 void Edit::OnWhiteSpace (wxCommandEvent &WXUNUSED(event)) {
 275     SetViewWhiteSpace (GetViewWhiteSpace() == 0?
 276                        wxSTC_WS_VISIBLEALWAYS: wxSTC_WS_INVISIBLE);
 277 }
 278
 279 void Edit::OnFoldToggle (wxCommandEvent &WXUNUSED(event)) {
 280     ToggleFold (GetFoldParent(GetCurrentLine()));
 281 }
 282
 283 void Edit::OnSetOverType (wxCommandEvent &WXUNUSED(event)) {
 284     SetOvertype (!GetOvertype());
 285 }
 286
 287 void Edit::OnSetReadOnly (wxCommandEvent &WXUNUSED(event)) {
 288     SetReadOnly (!GetReadOnly());
 289 }
 290
 291 void Edit::OnWrapmodeOn (wxCommandEvent &WXUNUSED(event)) {
 292     SetWrapMode (GetWrapMode() == 0? wxSTC_WRAP_WORD: wxSTC_WRAP_NONE);
 293 }
 294
 295 void Edit::OnUseCharset (wxCommandEvent &event) {
 296     int Nr;
 297     int charset = GetCodePage();
 298     switch (event.GetId()) {
 299         case myID_CHARSETANSI: {charset = wxSTC_CHARSET_ANSI; break;}
 300         case myID_CHARSETMAC: {charset = wxSTC_CHARSET_ANSI; break;}
 301     }
 302     for (Nr = 0; Nr < wxSTC_STYLE_LASTPREDEFINED; Nr++) {
 303         StyleSetCharacterSet (Nr, charset);
 304     }
 305     SetCodePage (charset);
 306 }
 307
 308 void Edit::OnChangeCase (wxCommandEvent &event) {
 309     switch (event.GetId()) {
 310         case myID_CHANGELOWER: {
 311             CmdKeyExecute (wxSTC_CMD_LOWERCASE);
 312             break;
 313         }
 314         case myID_CHANGEUPPER: {
 315             CmdKeyExecute (wxSTC_CMD_UPPERCASE);
 316             break;
 317         }
 318     }
 319 }
 320
 321 void Edit::OnConvertEOL (wxCommandEvent &event) {
 322     int eolMode = GetEOLMode();
 323     switch (event.GetId()) {
 324         case myID_CONVERTCR: { eolMode = wxSTC_EOL_CR; break;}
 325         case myID_CONVERTCRLF: { eolMode = wxSTC_EOL_CRLF; break;}
 326         case myID_CONVERTLF: { eolMode = wxSTC_EOL_LF; break;}
 327     }
 328     ConvertEOLs (eolMode);
 329     SetEOLMode (eolMode);
 330 }
 331
 332 //! misc
 333 void Edit::OnMarginClick (wxStyledTextEvent &event) {
 334     if (event.GetMargin() == 2) {
 335         int lineClick = LineFromPosition (event.GetPosition());
 336         int levelClick = GetFoldLevel (lineClick);
 337         if ((levelClick & wxSTC_FOLDLEVELHEADERFLAG) > 0) {
 338             ToggleFold (lineClick);
 339         }
 340     }
 341 }
 342
 343 void Edit::OnCharAdded (wxStyledTextEvent &event) {
 344     char chr = event.GetKey();
 345     int currentLine = GetCurrentLine();
 346     // Change this if support for mac files with \r is needed
 347     if (chr == '\n') {
 348         int lineInd = 0;
 349         if (currentLine > 0) {
 350             lineInd = GetLineIndentation(currentLine - 1);
 351         }
 352         if (lineInd == 0) return;
 353         SetLineIndentation (currentLine, lineInd);
 354         GotoPos(PositionFromLine (currentLine) + lineInd);
 355     }
 356 }
 357
 358
 359 //----------------------------------------------------------------------------
 360 // private functions
 361 wxString Edit::DeterminePrefs (const wxString &filename) {
 362
 363     LanguageInfo const* curInfo;
 364
 365     // determine language from filepatterns
 366     int languageNr;
 367     for (languageNr = 0; languageNr < g_LanguagePrefsSize; languageNr++) {
 368         curInfo = &g_LanguagePrefs [languageNr];
 369         wxString filepattern = curInfo->filepattern;
 370         filepattern.Lower();
 371         while (!filepattern.IsEmpty()) {
 372             wxString cur = filepattern.BeforeFirst (';');
 373             if ((cur == filename) ||
 374                 (cur == (filename.BeforeLast ('.') + _T(".*"))) ||
 375                 (cur == (_T("*.") + filename.AfterLast ('.')))) {
 376                 return curInfo->name;
 377             }
 378             filepattern = filepattern.AfterFirst (';');
 379         }
 380     }
 381     return wxEmptyString;
 382
 383 }
 384
 385 bool Edit::InitializePrefs (const wxString &name) {
 386
 387     // initialize styles
 388     StyleClearAll();
 389     LanguageInfo const* curInfo = NULL;
 390
 391     // determine language
 392     bool found = false;
 393     int languageNr;
 394     for (languageNr = 0; languageNr < g_LanguagePrefsSize; languageNr++) {
 395         curInfo = &g_LanguagePrefs [languageNr];
 396         if (curInfo->name == name) {
 397             found = true;
 398             break;
 399         }
 400     }
 401     if (!found) return false;
 402
 403     // set lexer and language
 404     SetLexer (curInfo->lexer);
 405     m_language = curInfo;
 406
 407     // set margin for line numbers
 408     SetMarginType (m_LineNrID, wxSTC_MARGIN_NUMBER);
 409     StyleSetForeground (wxSTC_STYLE_LINENUMBER, wxColour (_T("DARK GREY")));
 410     StyleSetBackground (wxSTC_STYLE_LINENUMBER, wxColour (_T("WHITE")));
 411     SetMarginWidth (m_LineNrID,
 412                     g_CommonPrefs.lineNumberEnable? m_LineNrMargin: 0);
 413
 414     // default fonts for all styles!
 415     int Nr;
 416     for (Nr = 0; Nr < wxSTC_STYLE_LASTPREDEFINED; Nr++) {
 417         wxFont font (10, wxMODERN, wxNORMAL, wxNORMAL);
 418         StyleSetFont (Nr, font);
 419     }
 420
 421     // set common styles
 422     StyleSetForeground (wxSTC_STYLE_DEFAULT, wxColour (_T("DARK GREY")));
 423     StyleSetForeground (wxSTC_STYLE_INDENTGUIDE, wxColour (_T("DARK GREY")));
 424
 425     // initialize settings
 426     if (g_CommonPrefs.syntaxEnable) {
 427         int keywordnr = 0;
 428         for (Nr = 0; Nr < STYLE_TYPES_COUNT; Nr++) {
 429             if (curInfo->styles[Nr].type == -1) continue;
 430             const StyleInfo &curType = g_StylePrefs [curInfo->styles[Nr].type];
 431             wxFont font (curType.fontsize, wxMODERN, wxNORMAL, wxNORMAL, false,
 432                          curType.fontname);
 433             StyleSetFont (Nr, font);
 434             if (curType.foreground) {
 435                 StyleSetForeground (Nr, wxColour (curType.foreground));
 436             }
 437             if (curType.background) {
 438                 StyleSetBackground (Nr, wxColour (curType.background));
 439             }
 440             StyleSetBold (Nr, (curType.fontstyle & mySTC_STYLE_BOLD) > 0);
 441             StyleSetItalic (Nr, (curType.fontstyle & mySTC_STYLE_ITALIC) > 0);
 442             StyleSetUnderline (Nr, (curType.fontstyle & mySTC_STYLE_UNDERL) > 0);
 443             StyleSetVisible (Nr, (curType.fontstyle & mySTC_STYLE_HIDDEN) == 0);
 444             StyleSetCase (Nr, curType.lettercase);
 445             const wxChar *pwords = curInfo->styles[Nr].words;
 446             if (pwords) {
 447                 SetKeyWords (keywordnr, pwords);
 448                 keywordnr += 1;
 449             }
 450         }
 451     }
 452
 453     // set margin as unused
 454     SetMarginType (m_DividerID, wxSTC_MARGIN_SYMBOL);
 455     SetMarginWidth (m_DividerID, 0);
 456     SetMarginSensitive (m_DividerID, false);
 457
 458     // folding
 459     SetMarginType (m_FoldingID, wxSTC_MARGIN_SYMBOL);
 460     SetMarginMask (m_FoldingID, wxSTC_MASK_FOLDERS);
 461     StyleSetBackground (m_FoldingID, wxColour (_T("WHITE")));
 462     SetMarginWidth (m_FoldingID, 0);
 463     SetMarginSensitive (m_FoldingID, false);
 464     if (g_CommonPrefs.foldEnable) {
 465         SetMarginWidth (m_FoldingID, curInfo->folds != 0? m_FoldingMargin: 0);
 466         SetMarginSensitive (m_FoldingID, curInfo->folds != 0);
 467         SetProperty (_T("fold"), curInfo->folds != 0? _T("1"): _T("0"));
 468         SetProperty (_T("fold.comment"),
 469                      (curInfo->folds & mySTC_FOLD_COMMENT) > 0? _T("1"): _T("0"));
 470         SetProperty (_T("fold.compact"),
 471                      (curInfo->folds & mySTC_FOLD_COMPACT) > 0? _T("1"): _T("0"));
 472         SetProperty (_T("fold.preprocessor"),
 473                      (curInfo->folds & mySTC_FOLD_PREPROC) > 0? _T("1"): _T("0"));
 474         SetProperty (_T("fold.html"),
 475                      (curInfo->folds & mySTC_FOLD_HTML) > 0? _T("1"): _T("0"));
 476         SetProperty (_T("fold.html.preprocessor"),
 477                      (curInfo->folds & mySTC_FOLD_HTMLPREP) > 0? _T("1"): _T("0"));
 478         SetProperty (_T("fold.comment.python"),
 479                      (curInfo->folds & mySTC_FOLD_COMMENTPY) > 0? _T("1"): _T("0"));
 480         SetProperty (_T("fold.quotes.python"),
 481                      (curInfo->folds & mySTC_FOLD_QUOTESPY) > 0? _T("1"): _T("0"));
 482     }
 483     SetFoldFlags (wxSTC_FOLDFLAG_LINEBEFORE_CONTRACTED |
 484                   wxSTC_FOLDFLAG_LINEAFTER_CONTRACTED);
 485
 486     // set spaces and indention
 487     SetTabWidth (4);
 488     SetUseTabs (false);
 489     SetTabIndents (true);
 490     SetBackSpaceUnIndents (true);
 491     SetIndent (g_CommonPrefs.indentEnable? 4: 0);
 492
 493     // others
 494     SetViewEOL (g_CommonPrefs.displayEOLEnable);
 495     SetIndentationGuides (g_CommonPrefs.indentGuideEnable);
 496     SetEdgeColumn (80);
 497     SetEdgeMode (g_CommonPrefs.longLineOnEnable? wxSTC_EDGE_LINE: wxSTC_EDGE_NONE);
 498     SetViewWhiteSpace (g_CommonPrefs.whiteSpaceEnable?
 499                        wxSTC_WS_VISIBLEALWAYS: wxSTC_WS_INVISIBLE);
 500     SetOvertype (g_CommonPrefs.overTypeInitial);
 501     SetReadOnly (g_CommonPrefs.readOnlyInitial);
 502     SetWrapMode (g_CommonPrefs.wrapModeInitial?
 503                  wxSTC_WRAP_WORD: wxSTC_WRAP_NONE);
 504
 505     return true;
 506 }
 507
 508 bool Edit::LoadFile () {
 509
 510     // get filname
 511     if (!m_filename) {
 512         wxFileDialog dlg (this, _T("Open file"), _T(""), _T(""),
 513                           _T("Any file (*)|*"), wxOPEN | wxFILE_MUST_EXIST | wxCHANGE_DIR);
 514         if (dlg.ShowModal() != wxID_OK) return false;
 515         m_filename = dlg.GetPath();
 516     }
 517
 518     // load file
 519     return LoadFile (m_filename);
 520 }
 521
 522 bool Edit::LoadFile (const wxString &filename) {
 523
 524     // load file in edit and clear undo
 525     if (!filename.IsEmpty()) m_filename = filename;
 526 //     wxFile file (m_filename);
 527 //     if (!file.IsOpened()) return false;
 528     ClearAll ();
 529 //     long lng = file.Length ();
 530 //     if (lng > 0) {
 531 //         wxString buf;
 532 //         wxChar *buff = buf.GetWriteBuf (lng);
 533 //         file.Read (buff, lng);
 534 //         buf.UngetWriteBuf ();
 535 //         InsertText (0, buf);
 536 //     }
 537 //     file.Close();
 538
 539     wxStyledTextCtrl::LoadFile(m_filename);
 540
 541     EmptyUndoBuffer();
 542
 543     // determine lexer language
 544     wxFileName fname (m_filename);
 545     InitializePrefs (DeterminePrefs (fname.GetFullName()));
 546
 547     return true;
 548 }
 549
 550 bool Edit::SaveFile () {
 551
 552     // return if no change
 553     if (!Modified()) return true;
 554
 555     // get filname
 556     if (!m_filename) {
 557         wxFileDialog dlg (this, _T("Save file"), _T(""), _T(""), _T("Any file (*)|*"),
 558                           wxSAVE | wxOVERWRITE_PROMPT);
 559         if (dlg.ShowModal() != wxID_OK) return false;
 560         m_filename = dlg.GetPath();
 561     }
 562
 563     // save file
 564     return SaveFile (m_filename);
 565 }
 566
 567 bool Edit::SaveFile (const wxString &filename) {
 568
 569     // return if no change
 570     if (!Modified()) return true;
 571
 572 //     // save edit in file and clear undo
 573 //     if (!filename.IsEmpty()) m_filename = filename;
 574 //     wxFile file (m_filename, wxFile::write);
 575 //     if (!file.IsOpened()) return false;
 576 //     wxString buf = GetText();
 577 //     bool okay = file.Write (buf);
 578 //     file.Close();
 579 //     if (!okay) return false;
 580 //     EmptyUndoBuffer();
 581 //     SetSavePoint();
 582
 583 //     return true;
 584
 585     return wxStyledTextCtrl::SaveFile(filename);
 586
 587 }
 588
 589 bool Edit::Modified () {
 590
 591     // return modified state
 592     return (GetModify() && !GetReadOnly());
 593 }
 594
 595 //----------------------------------------------------------------------------
 596 // EditProperties
 597 //----------------------------------------------------------------------------
 598
 599 EditProperties::EditProperties (Edit *edit,
 600                                 long style)
 601         : wxDialog (edit, -1, wxEmptyString,
 602                     wxDefaultPosition, wxDefaultSize,
 603                     style | wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER) {
 604
 605     // sets the application title
 606     SetTitle (_("Properties"));
 607     wxString text;
 608
 609     // fullname
 610     wxBoxSizer *fullname = new wxBoxSizer (wxHORIZONTAL);
 611     fullname->Add (10, 0);
 612     fullname->Add (new wxStaticText (this, -1, _("Full filename"),
 613                                      wxDefaultPosition, wxSize(80, -1)),
 614                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL);
 615     fullname->Add (new wxStaticText (this, -1, edit->GetFilename()),
 616                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL);
 617
 618     // text info
 619     wxGridSizer *textinfo = new wxGridSizer (4, 0, 2);
 620     textinfo->Add (new wxStaticText (this, -1, _("Language"),
 621                                      wxDefaultPosition, wxSize(80, -1)),
 622                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 623     textinfo->Add (new wxStaticText (this, -1, edit->m_language->name),
 624                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 625     textinfo->Add (new wxStaticText (this, -1, _("Lexer-ID: "),
 626                                      wxDefaultPosition, wxSize(80, -1)),
 627                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 628     text = wxString::Format (_T("%d"), edit->GetLexer());
 629     textinfo->Add (new wxStaticText (this, -1, text),
 630                    0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 631     wxString EOLtype = _T("");
 632     switch (edit->GetEOLMode()) {
 633         case wxSTC_EOL_CR: {EOLtype = _T("CR (Unix)"); break; }
 634         case wxSTC_EOL_CRLF: {EOLtype = _T("CRLF (Windows)"); break; }
 635         case wxSTC_EOL_LF: {EOLtype = _T("CR (Macintosh)"); break; }
 636     }
 637     textinfo->Add (new wxStaticText (this, -1, _("Line endings"),
 638                                      wxDefaultPosition, wxSize(80, -1)),
 639                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 640     textinfo->Add (new wxStaticText (this, -1, EOLtype),
 641                    0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 642
 643     // text info box
 644     wxStaticBoxSizer *textinfos = new wxStaticBoxSizer (
 645                      new wxStaticBox (this, -1, _("Informations")),
 646                      wxVERTICAL);
 647     textinfos->Add (textinfo, 0, wxEXPAND);
 648     textinfos->Add (0, 6);
 649
 650     // statistic
 651     wxGridSizer *statistic = new wxGridSizer (4, 0, 2);
 652     statistic->Add (new wxStaticText (this, -1, _("Total lines"),
 653                                      wxDefaultPosition, wxSize(80, -1)),
 654                     0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 655     text = wxString::Format (_T("%d"), edit->GetLineCount());
 656     statistic->Add (new wxStaticText (this, -1, text),
 657                     0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 658     statistic->Add (new wxStaticText (this, -1, _("Total chars"),
 659                                      wxDefaultPosition, wxSize(80, -1)),
 660                     0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 661     text = wxString::Format (_T("%d"), edit->GetTextLength());
 662     statistic->Add (new wxStaticText (this, -1, text),
 663                     0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 664     statistic->Add (new wxStaticText (this, -1, _("Current line"),
 665                                      wxDefaultPosition, wxSize(80, -1)),
 666                     0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 667     text = wxString::Format (_T("%d"), edit->GetCurrentLine());
 668     statistic->Add (new wxStaticText (this, -1, text),
 669                     0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 670     statistic->Add (new wxStaticText (this, -1, _("Current pos"),
 671                                      wxDefaultPosition, wxSize(80, -1)),
 672                     0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL|wxLEFT, 4);
 673     text = wxString::Format (_T("%d"), edit->GetCurrentPos());
 674     statistic->Add (new wxStaticText (this, -1, text),
 675                     0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxRIGHT, 4);
 676
 677     // char/line statistics
 678     wxStaticBoxSizer *statistics = new wxStaticBoxSizer (
 679                      new wxStaticBox (this, -1, _("Statistics")),
 680                      wxVERTICAL);
 681     statistics->Add (statistic, 0, wxEXPAND);
 682     statistics->Add (0, 6);
 683
 684     // total pane
 685     wxBoxSizer *totalpane = new wxBoxSizer (wxVERTICAL);
 686     totalpane->Add (fullname, 0, wxEXPAND | wxLEFT | wxRIGHT | wxTOP, 10);
 687     totalpane->Add (0, 6);
 688     totalpane->Add (textinfos, 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
 689     totalpane->Add (0, 10);
 690     totalpane->Add (statistics, 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
 691     totalpane->Add (0, 6);
 692     wxButton *okButton = new wxButton (this, wxID_OK, _("OK"));
 693     okButton->SetDefault();
 694     totalpane->Add (okButton, 0, wxALIGN_CENTER | wxALL, 10);
 695
 696     SetSizerAndFit (totalpane);
 697
 698     ShowModal();
 699 }
 700
 701 //----------------------------------------------------------------------------
 702 // EditPrint
 703 //----------------------------------------------------------------------------
 704
 705 EditPrint::EditPrint (Edit *edit, wxChar *title)
 706               : wxPrintout(title) {
 707     m_edit = edit;
 708     m_printed = 0;
 709
 710 }
 711
 712 bool EditPrint::OnPrintPage (int page) {
 713
 714     wxDC *dc = GetDC();
 715     if (!dc) return false;
 716
 717     // scale DC
 718     PrintScaling (dc);
 719
 720     // print page
 721     if (page == 1) m_printed = 0;
 722     m_printed = m_edit->FormatRange (1, m_printed, m_edit->GetLength(),
 723                                      dc, dc, m_printRect, m_pageRect);
 724
 725     return true;
 726 }
 727
 728 bool EditPrint::OnBeginDocument (int startPage, int endPage) {
 729
 730     if (!wxPrintout::OnBeginDocument (startPage, endPage)) {
 731         return false;
 732     }
 733
 734     return true;
 735 }
 736
 737 void EditPrint::GetPageInfo (int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) {
 738
 739     // initialize values
 740     *minPage = 0;
 741     *maxPage = 0;
 742     *selPageFrom = 0;
 743     *selPageTo = 0;
 744
 745     // scale DC if possible
 746     wxDC *dc = GetDC();
 747     if (!dc) return;
 748     PrintScaling (dc);
 749
 750     // get print page informations and convert to printer pixels
 751     wxSize ppiScr;
 752     GetPPIScreen (&ppiScr.x, &ppiScr.y);
 753     wxSize page = g_pageSetupData->GetPaperSize();
 754     page.x = static_cast<int> (page.x * ppiScr.x / 25.4);
 755     page.y = static_cast<int> (page.y * ppiScr.y / 25.4);
 756     m_pageRect = wxRect (0,
 757                          0,
 758                          page.x,
 759                          page.y);
 760
 761     // get margins informations and convert to printer pixels
 762     int  top = 25; // default 25
 763     int  bottom = 25; // default 25
 764     int  left = 20; // default 20
 765     int  right = 20; // default 20
 766     wxPoint (top, left) = g_pageSetupData->GetMarginTopLeft();
 767     wxPoint (bottom, right) = g_pageSetupData->GetMarginBottomRight();
 768     top = static_cast<int> (top * ppiScr.y / 25.4);
 769     bottom = static_cast<int> (bottom * ppiScr.y / 25.4);
 770     left = static_cast<int> (left * ppiScr.x / 25.4);
 771     right = static_cast<int> (right * ppiScr.x / 25.4);
 772     m_printRect = wxRect (left,
 773                           top,
 774                           page.x - (left + right),
 775                           page.y - (top + bottom));
 776
 777     // count pages
 778     while (HasPage (*maxPage)) {
 779         m_printed = m_edit->FormatRange (0, m_printed, m_edit->GetLength(),
 780                                        dc, dc, m_printRect, m_pageRect);
 781         *maxPage += 1;
 782     }
 783     if (*maxPage > 0) *minPage = 1;
 784     *selPageFrom = *minPage;
 785     *selPageTo = *maxPage;
 786 }
 787
 788 bool EditPrint::HasPage (int WXUNUSED(page)) {
 789
 790     return (m_printed < m_edit->GetLength());
 791 }
 792
 793 bool EditPrint::PrintScaling (wxDC *dc){
 794
 795     // check for dc, return if none
 796     if (!dc) return false;
 797
 798     // get printer and screen sizing values
 799     wxSize ppiScr;
 800     GetPPIScreen (&ppiScr.x, &ppiScr.y);
 801     if (ppiScr.x == 0) { // most possible guess 96 dpi
 802         ppiScr.x = 96;
 803         ppiScr.y = 96;
 804     }
 805     wxSize ppiPrt;
 806     GetPPIPrinter (&ppiPrt.x, &ppiPrt.y);
 807     if (ppiPrt.x == 0) { // scaling factor to 1
 808         ppiPrt.x = ppiScr.x;
 809         ppiPrt.y = ppiScr.y;
 810     }
 811     wxSize dcSize = dc->GetSize();
 812     wxSize pageSize;
 813     GetPageSizePixels (&pageSize.x, &pageSize.y);
 814
 815     // set user scale
 816     float scale_x = (float)(ppiPrt.x * dcSize.x) /
 817                     (float)(ppiScr.x * pageSize.x);
 818     float scale_y = (float)(ppiPrt.y * dcSize.y) /
 819                     (float)(ppiScr.y * pageSize.y);
 820     dc->SetUserScale (scale_x, scale_y);
 821
 822     return true;
 823 }
 824