include/wx/x11/textctrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/x11/textctrl.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef __X11TEXTCTRLH__
  12 #define __X11TEXTCTRLH__
  13
  14 // Set to 1 to use wxUniv's implementation, 0
  15 // to use wxX11's.
  16 #define wxUSE_UNIV_TEXTCTRL 1
  17
  18 #if wxUSE_UNIV_TEXTCTRL
  19 #include "wx/univ/textctrl.h"
  20 #else
  21
  22 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  23     #pragma interface "textctrl.h"
  24 #endif
  25
  26 #include "wx/scrolwin.h"
  27 #include "wx/arrstr.h"
  28 #include "wx/datetime.h"
  29
  30 //-----------------------------------------------------------------------------
  31 // classes
  32 //-----------------------------------------------------------------------------
  33
  34 class wxTextCtrl;
  35
  36 //-----------------------------------------------------------------------------
  37 // helpers
  38 //-----------------------------------------------------------------------------
  39
  40 enum wxSourceUndo
  41 {
  42     wxSOURCE_UNDO_LINE,
  43     wxSOURCE_UNDO_ENTER,
  44     wxSOURCE_UNDO_BACK,
  45     wxSOURCE_UNDO_INSERT_LINE,
  46     wxSOURCE_UNDO_DELETE,
  47     wxSOURCE_UNDO_PASTE
  48 };
  49
  50 class wxSourceUndoStep: public wxObject
  51 {
  52 public:
  53     wxSourceUndoStep( wxSourceUndo type, int y1, int y2, wxTextCtrl *owner );
  54
  55     void Undo();
  56
  57     wxSourceUndo    m_type;
  58     int             m_y1;
  59     int             m_y2;
  60     int             m_cursorX;
  61     int             m_cursorY;
  62     wxTextCtrl     *m_owner;
  63     wxString        m_text;
  64     wxArrayString   m_lines;
  65 };
  66
  67 class wxSourceLine
  68 {
  69 public:
  70     wxSourceLine( const wxString &text = wxEmptyString )
  71     {
  72         m_text = text;
  73     }
  74
  75     wxString       m_text;
  76 };
  77
  78 WX_DECLARE_OBJARRAY(wxSourceLine, wxSourceLineArray);
  79
  80 enum wxSourceLanguage
  81 {
  82     wxSOURCE_LANG_NONE,
  83     wxSOURCE_LANG_CPP,
  84     wxSOURCE_LANG_PERL,
  85     wxSOURCE_LANG_PYTHON
  86 };
  87
  88 //-----------------------------------------------------------------------------
  89 // wxTextCtrl
  90 //-----------------------------------------------------------------------------
  91
  92 class wxTextCtrl: public wxTextCtrlBase, public wxScrollHelper
  93 {
  94 public:
  95     wxTextCtrl() { Init(); }
  96     wxTextCtrl(wxWindow *parent,
  97                wxWindowID id,
  98                const wxString &value = wxEmptyString,
  99                const wxPoint &pos = wxDefaultPosition,
 100                const wxSize &size = wxDefaultSize,
 101                long style = 0,
 102                const wxValidator& validator = wxDefaultValidator,
 103                const wxString &name = wxTextCtrlNameStr);
 104     virtual ~wxTextCtrl();
 105
 106     bool Create(wxWindow *parent,
 107                 wxWindowID id,
 108                 const wxString &value = wxEmptyString,
 109                 const wxPoint &pos = wxDefaultPosition,
 110                 const wxSize &size = wxDefaultSize,
 111                 long style = 0,
 112                 const wxValidator& validator = wxDefaultValidator,
 113                 const wxString &name = wxTextCtrlNameStr);
 114
 115     // required for scrolling with wxScrollHelper
 116     // ------------------------------------------
 117
 118     virtual void PrepareDC(wxDC& dc) { DoPrepareDC(dc); }
 119
 120     // implement base class pure virtuals
 121     // ----------------------------------
 122
 123     virtual wxString GetValue() const;
 124     virtual void SetValue(const wxString& value);
 125
 126     virtual int GetLineLength(long lineNo) const;
 127     virtual wxString GetLineText(long lineNo) const;
 128     virtual int GetNumberOfLines() const;
 129
 130     virtual bool IsModified() const;
 131     virtual bool IsEditable() const;
 132
 133     // more readable flag testing methods
 134     // ----------------------------------
 135
 136 #if 0
 137     // it seems now in wxTextCtrlBase
 138     bool IsSingleLine() const { return !(GetWindowStyle() & wxTE_MULTILINE); }
 139 #endif
 140     bool IsPassword() const { return (GetWindowStyle() & wxTE_PASSWORD) != 0; }
 141     bool WrapLines() const { return false; }
 142
 143     // If the return values from and to are the same, there is no selection.
 144     virtual void GetSelection(long* from, long* to) const;
 145
 146     // operations
 147     // ----------
 148
 149     // editing
 150     virtual void Clear();
 151     virtual void Replace(long from, long to, const wxString& value);
 152     virtual void Remove(long from, long to);
 153
 154     // clears the dirty flag
 155     virtual void DiscardEdits();
 156
 157     virtual void SetMaxLength(unsigned long len);
 158
 159     // writing text inserts it at the current position, appending always
 160     // inserts it at the end
 161     virtual void WriteText(const wxString& text);
 162     virtual void AppendText(const wxString& text);
 163
 164     // apply text attribute to the range of text (only works with richedit
 165     // controls)
 166     virtual bool SetStyle(long start, long end, const wxTextAttr& style);
 167
 168     // translate between the position (which is just an index in the text ctrl
 169     // considering all its contents as a single strings) and (x, y) coordinates
 170     // which represent column and line.
 171     virtual long XYToPosition(long x, long y) const;
 172     virtual bool PositionToXY(long pos, long *x, long *y) const;
 173
 174     virtual void ShowPosition(long pos);
 175
 176     // Clipboard operations
 177     virtual void Copy();
 178     virtual void Cut();
 179     virtual void Paste();
 180
 181     // Undo/redo
 182     virtual void Undo();
 183     virtual void Redo() {}
 184
 185     virtual bool CanUndo() const    { return (m_undos.GetCount() > 0); }
 186     virtual bool CanRedo() const    { return false; }
 187
 188     // Insertion point
 189     virtual void SetInsertionPoint(long pos);
 190     virtual void SetInsertionPointEnd();
 191     virtual long GetInsertionPoint() const;
 192     virtual wxTextPos GetLastPosition() const;
 193
 194     virtual void SetSelection(long from, long to);
 195     virtual void SetEditable(bool editable);
 196
 197     virtual bool Enable( bool enable = true );
 198
 199     void OnCut(wxCommandEvent& event);
 200     void OnCopy(wxCommandEvent& event);
 201     void OnPaste(wxCommandEvent& event);
 202     void OnUndo(wxCommandEvent& event);
 203     void OnRedo(wxCommandEvent& event);
 204
 205     void OnUpdateCut(wxUpdateUIEvent& event);
 206     void OnUpdateCopy(wxUpdateUIEvent& event);
 207     void OnUpdatePaste(wxUpdateUIEvent& event);
 208     void OnUpdateUndo(wxUpdateUIEvent& event);
 209     void OnUpdateRedo(wxUpdateUIEvent& event);
 210
 211     bool SetFont(const wxFont& font);
 212     bool SetForegroundColour(const wxColour& colour);
 213     bool SetBackgroundColour(const wxColour& colour);
 214
 215     void SetModified() { m_modified = true; }
 216
 217     virtual void Freeze();
 218     virtual void Thaw();
 219
 220     // textctrl specific scrolling
 221     virtual bool ScrollLines(int lines);
 222     virtual bool ScrollPages(int pages);
 223
 224     // not part of the wxTextCtrl API from now on..
 225
 226     void SetLanguage( wxSourceLanguage lang = wxSOURCE_LANG_NONE );
 227
 228     void Delete();
 229     void DeleteLine();
 230
 231     void Indent();
 232     void Unindent();
 233
 234     bool HasSelection();
 235     void ClearSelection();
 236
 237     int GetCursorX()                        { return m_cursorX; }
 238     int GetCursorY()                        { return m_cursorY; }
 239     bool IsModified()                       { return m_modified; }
 240     bool OverwriteMode()                    { return m_overwrite; }
 241
 242     // implementation from now on...
 243
 244     int PosToPixel( int line, int pos );
 245     int PixelToPos( int line, int pixel );
 246
 247     void SearchForBrackets();
 248
 249     void DoChar( char c );
 250     void DoBack();
 251     void DoDelete();
 252     void DoReturn();
 253     void DoDClick();
 254
 255     wxString GetNextToken( wxString &line, size_t &pos );
 256
 257     void DrawLinePart( wxDC &dc, int x, int y, const wxString &toDraw, const wxString &origin, const wxColour &colour);
 258     void DrawLine( wxDC &dc, int x, int y, const wxString &line, int lineNum );
 259     void OnPaint( wxPaintEvent &event );
 260     void OnEraseBackground( wxEraseEvent &event );
 261     void OnMouse( wxMouseEvent &event );
 262     void OnChar( wxKeyEvent &event );
 263     void OnSetFocus( wxFocusEvent& event );
 264     void OnKillFocus( wxFocusEvent& event );
 265
 266     void OnInternalIdle();
 267     void RefreshLine( int n );
 268     void RefreshDown( int n );
 269     void MoveCursor( int new_x, int new_y, bool shift = false, bool centre = false );
 270     void MyAdjustScrollbars();
 271
 272 protected:
 273     // common part of all ctors
 274     void Init();
 275
 276     virtual wxSize DoGetBestSize() const;
 277
 278     friend class wxSourceUndoStep;
 279
 280     wxSourceLineArray  m_lines;
 281
 282     wxFont             m_sourceFont;
 283     wxColour           m_sourceColour;
 284     wxColour           m_commentColour;
 285     wxColour           m_stringColour;
 286
 287     int                m_cursorX;
 288     int                m_cursorY;
 289
 290     int                m_selStartX,m_selStartY;
 291     int                m_selEndX,m_selEndY;
 292
 293     int                m_lineHeight;
 294     int                m_charWidth;
 295
 296     int                m_longestLine;
 297
 298     bool               m_overwrite;
 299     bool               m_modified;
 300     bool               m_editable;
 301     bool               m_ignoreInput;
 302
 303     wxArrayString      m_keywords;
 304     wxColour           m_keywordColour;
 305
 306     wxArrayString      m_defines;
 307     wxColour           m_defineColour;
 308
 309     wxArrayString      m_variables;
 310     wxColour           m_variableColour;
 311
 312     wxSourceLanguage   m_lang;
 313
 314     wxList             m_undos;
 315
 316     bool               m_capturing;
 317
 318     int                m_bracketX;
 319     int                m_bracketY;
 320
 321 private:
 322     DECLARE_EVENT_TABLE()
 323     DECLARE_DYNAMIC_CLASS(wxTextCtrl);
 324 };
 325
 326 //-----------------------------------------------------------------------------
 327 // this is superfluous here but helps to compile
 328 //-----------------------------------------------------------------------------
 329
 330 // cursor movement and also selection and delete operations
 331 #define wxACTION_TEXT_GOTO          _T("goto")  // to pos in numArg
 332 #define wxACTION_TEXT_FIRST         _T("first") // go to pos 0
 333 #define wxACTION_TEXT_LAST          _T("last")  // go to last pos
 334 #define wxACTION_TEXT_HOME          _T("home")
 335 #define wxACTION_TEXT_END           _T("end")
 336 #define wxACTION_TEXT_LEFT          _T("left")
 337 #define wxACTION_TEXT_RIGHT         _T("right")
 338 #define wxACTION_TEXT_UP            _T("up")
 339 #define wxACTION_TEXT_DOWN          _T("down")
 340 #define wxACTION_TEXT_WORD_LEFT     _T("wordleft")
 341 #define wxACTION_TEXT_WORD_RIGHT    _T("wordright")
 342 #define wxACTION_TEXT_PAGE_UP       _T("pageup")
 343 #define wxACTION_TEXT_PAGE_DOWN     _T("pagedown")
 344
 345 // clipboard operations
 346 #define wxACTION_TEXT_COPY          _T("copy")
 347 #define wxACTION_TEXT_CUT           _T("cut")
 348 #define wxACTION_TEXT_PASTE         _T("paste")
 349
 350 // insert text at the cursor position: the text is in strArg of PerformAction
 351 #define wxACTION_TEXT_INSERT        _T("insert")
 352
 353 // if the action starts with either of these prefixes and the rest of the
 354 // string is one of the movement commands, it means to select/delete text from
 355 // the current cursor position to the new one
 356 #define wxACTION_TEXT_PREFIX_SEL    _T("sel")
 357 #define wxACTION_TEXT_PREFIX_DEL    _T("del")
 358
 359 // mouse selection
 360 #define wxACTION_TEXT_ANCHOR_SEL    _T("anchorsel")
 361 #define wxACTION_TEXT_EXTEND_SEL    _T("extendsel")
 362 #define wxACTION_TEXT_SEL_WORD      _T("wordsel")
 363 #define wxACTION_TEXT_SEL_LINE      _T("linesel")
 364
 365 // undo or redo
 366 #define wxACTION_TEXT_UNDO          _T("undo")
 367 #define wxACTION_TEXT_REDO          _T("redo")
 368
 369 // ----------------------------------------------------------------------------
 370 // wxTextCtrl types
 371 // ----------------------------------------------------------------------------
 372
 373 class WXDLLEXPORT wxStdTextCtrlInputHandler : public wxStdInputHandler
 374 {
 375 public:
 376     wxStdTextCtrlInputHandler(wxInputHandler *inphand) : wxStdInputHandler(inphand) {}
 377
 378     virtual bool HandleKey(wxInputConsumer *consumer,
 379                            const wxKeyEvent& event,
 380                            bool pressed) { return false; }
 381     virtual bool HandleMouse(wxInputConsumer *consumer, const wxMouseEvent& event) { return false; }
 382     virtual bool HandleMouseMove(wxInputConsumer *consumer, const wxMouseEvent& event) { return false; }
 383     virtual bool HandleFocus(wxInputConsumer *consumer, const wxFocusEvent& event) { return false; }
 384
 385 protected:
 386     // get the position of the mouse click
 387     static wxTextPos HitTest(const wxTextCtrl *text, const wxPoint& pos) { return 0; }
 388
 389     // capture data
 390     wxTextCtrl *m_winCapture;
 391 };
 392
 393 #endif
 394 // wxUSE_UNIV_TEXTCTRL
 395
 396 #endif // __X11TEXTCTRLH__
 397