include/wx/gtk1/textctrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk1/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 __GTKTEXTCTRLH__
  12 #define __GTKTEXTCTRLH__
  13
  14 //-----------------------------------------------------------------------------
  15 // wxTextCtrl
  16 //-----------------------------------------------------------------------------
  17
  18 class WXDLLIMPEXP_CORE wxTextCtrl: public wxTextCtrlBase
  19 {
  20 public:
  21     wxTextCtrl() { Init(); }
  22     wxTextCtrl(wxWindow *parent,
  23                wxWindowID id,
  24                const wxString &value = wxEmptyString,
  25                const wxPoint &pos = wxDefaultPosition,
  26                const wxSize &size = wxDefaultSize,
  27                long style = 0,
  28                const wxValidator& validator = wxDefaultValidator,
  29                const wxString &name = wxTextCtrlNameStr);
  30
  31     virtual ~wxTextCtrl();
  32
  33     bool Create(wxWindow *parent,
  34                 wxWindowID id,
  35                 const wxString &value = wxEmptyString,
  36                 const wxPoint &pos = wxDefaultPosition,
  37                 const wxSize &size = wxDefaultSize,
  38                 long style = 0,
  39                 const wxValidator& validator = wxDefaultValidator,
  40                 const wxString &name = wxTextCtrlNameStr);
  41
  42     // implement base class pure virtuals
  43     // ----------------------------------
  44
  45     virtual wxString GetValue() const;
  46
  47     virtual int GetLineLength(long lineNo) const;
  48     virtual wxString GetLineText(long lineNo) const;
  49     virtual int GetNumberOfLines() const;
  50
  51     virtual bool IsModified() const;
  52     virtual bool IsEditable() const;
  53
  54     // If the return values from and to are the same, there is no selection.
  55     virtual void GetSelection(long* from, long* to) const;
  56
  57     // operations
  58     // ----------
  59
  60     // editing
  61     virtual void Clear();
  62     virtual void Replace(long from, long to, const wxString& value);
  63     virtual void Remove(long from, long to);
  64
  65     // sets/clears the dirty flag
  66     virtual void MarkDirty();
  67     virtual void DiscardEdits();
  68
  69     virtual void SetMaxLength(unsigned long len);
  70
  71     // writing text inserts it at the current position, appending always
  72     // inserts it at the end
  73     virtual void WriteText(const wxString& text);
  74     virtual void AppendText(const wxString& text);
  75
  76     // apply text attribute to the range of text (only works with richedit
  77     // controls)
  78     virtual bool SetStyle(long start, long end, const wxTextAttr& style);
  79
  80     // translate between the position (which is just an index in the text ctrl
  81     // considering all its contents as a single strings) and (x, y) coordinates
  82     // which represent column and line.
  83     virtual long XYToPosition(long x, long y) const;
  84     virtual bool PositionToXY(long pos, long *x, long *y) const;
  85
  86     virtual void ShowPosition(long pos);
  87
  88     // Clipboard operations
  89     virtual void Copy();
  90     virtual void Cut();
  91     virtual void Paste();
  92
  93     // Undo/redo
  94     virtual void Undo();
  95     virtual void Redo();
  96
  97     virtual bool CanUndo() const;
  98     virtual bool CanRedo() const;
  99
 100     // Insertion point
 101     virtual void SetInsertionPoint(long pos);
 102     virtual void SetInsertionPointEnd();
 103     virtual long GetInsertionPoint() const;
 104     virtual wxTextPos GetLastPosition() const;
 105
 106     virtual void SetSelection(long from, long to);
 107     virtual void SetEditable(bool editable);
 108
 109     virtual bool Enable( bool enable = true );
 110
 111     // Implementation from now on
 112     void OnDropFiles( wxDropFilesEvent &event );
 113     void OnChar( wxKeyEvent &event );
 114
 115     void OnCut(wxCommandEvent& event);
 116     void OnCopy(wxCommandEvent& event);
 117     void OnPaste(wxCommandEvent& event);
 118     void OnUndo(wxCommandEvent& event);
 119     void OnRedo(wxCommandEvent& event);
 120
 121     void OnUpdateCut(wxUpdateUIEvent& event);
 122     void OnUpdateCopy(wxUpdateUIEvent& event);
 123     void OnUpdatePaste(wxUpdateUIEvent& event);
 124     void OnUpdateUndo(wxUpdateUIEvent& event);
 125     void OnUpdateRedo(wxUpdateUIEvent& event);
 126
 127     bool SetFont(const wxFont& font);
 128     bool SetForegroundColour(const wxColour& colour);
 129     bool SetBackgroundColour(const wxColour& colour);
 130
 131     GtkWidget* GetConnectWidget();
 132     bool IsOwnGtkWindow( GdkWindow *window );
 133     void DoApplyWidgetStyle(GtkRcStyle *style);
 134     void CalculateScrollbar();
 135     void OnInternalIdle();
 136
 137     void SetUpdateFont(bool update) { m_updateFont = update; }
 138     void UpdateFontIfNeeded();
 139
 140     void SetModified() { m_modified = true; }
 141
 142     // GTK+ textctrl is so dumb that you need to freeze/thaw it manually to
 143     // avoid horrible flicker/scrolling back and forth
 144     virtual void Freeze();
 145     virtual void Thaw();
 146
 147     // textctrl specific scrolling
 148     virtual bool ScrollLines(int lines);
 149     virtual bool ScrollPages(int pages);
 150
 151     // implementation only from now on
 152
 153     // wxGTK-specific: called recursively by Enable,
 154     // to give widgets an oppprtunity to correct their colours after they
 155     // have been changed by Enable
 156     virtual void OnParentEnable( bool enable ) ;
 157
 158     // tell the control to ignore next text changed signal
 159     void IgnoreNextTextUpdate();
 160
 161     // should we ignore the changed signal? always resets the flag
 162     bool IgnoreTextUpdate();
 163
 164     static wxVisualAttributes
 165     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 166
 167 protected:
 168     virtual wxSize DoGetBestSize() const;
 169
 170     // common part of all ctors
 171     void Init();
 172
 173     // get the vertical adjustment, if any, NULL otherwise
 174     GtkAdjustment *GetVAdj() const;
 175
 176     // scroll the control by the given number of pixels, return true if the
 177     // scroll position changed
 178     bool DoScroll(GtkAdjustment *adj, int diff);
 179
 180     // Widgets that use the style->base colour for the BG colour should
 181     // override this and return true.
 182     virtual bool UseGTKStyleBase() const { return true; }
 183
 184     virtual void DoSetValue(const wxString &value, int flags = 0);
 185
 186 private:
 187     // change the font for everything in this control
 188     void ChangeFontGlobally();
 189
 190     GtkWidget  *m_text;
 191     GtkWidget  *m_vScrollbar;
 192
 193     bool        m_modified:1;
 194     bool        m_vScrollbarVisible:1;
 195     bool        m_updateFont:1;
 196     bool        m_ignoreNextUpdate:1;
 197
 198     DECLARE_EVENT_TABLE()
 199     DECLARE_DYNAMIC_CLASS(wxTextCtrl)
 200 };
 201
 202 #endif // __GTKTEXTCTRLH__
 203