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