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