include/wx/gtk/textctrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/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 _WX_GTK_TEXTCTRL_H_
  12 #define _WX_GTK_TEXTCTRL_H_
  13
  14 typedef struct _GtkTextMark GtkTextMark;
  15
  16 //-----------------------------------------------------------------------------
  17 // wxTextCtrl
  18 //-----------------------------------------------------------------------------
  19
  20 class WXDLLIMPEXP_CORE wxTextCtrl: public wxTextCtrlBase
  21 {
  22 public:
  23     wxTextCtrl() { Init(); }
  24     wxTextCtrl(wxWindow *parent,
  25                wxWindowID id,
  26                const wxString &value = wxEmptyString,
  27                const wxPoint &pos = wxDefaultPosition,
  28                const wxSize &size = wxDefaultSize,
  29                long style = 0,
  30                const wxValidator& validator = wxDefaultValidator,
  31                const wxString &name = wxTextCtrlNameStr);
  32
  33     virtual ~wxTextCtrl();
  34
  35     bool Create(wxWindow *parent,
  36                 wxWindowID id,
  37                 const wxString &value = wxEmptyString,
  38                 const wxPoint &pos = wxDefaultPosition,
  39                 const wxSize &size = wxDefaultSize,
  40                 long style = 0,
  41                 const wxValidator& validator = wxDefaultValidator,
  42                 const wxString &name = wxTextCtrlNameStr);
  43
  44     // implement base class pure virtuals
  45     // ----------------------------------
  46
  47     virtual void WriteText(const wxString& text);
  48     virtual wxString GetValue() const;
  49     virtual bool IsEmpty() const;
  50
  51     virtual int GetLineLength(long lineNo) const;
  52     virtual wxString GetLineText(long lineNo) const;
  53     virtual int GetNumberOfLines() const;
  54
  55     virtual bool IsModified() const;
  56     virtual bool IsEditable() const;
  57
  58     virtual void GetSelection(long* from, long* to) const;
  59
  60     virtual void Remove(long from, long to);
  61
  62     virtual void MarkDirty();
  63     virtual void DiscardEdits();
  64
  65     virtual bool SetStyle(long start, long end, const wxTextAttr& style);
  66     virtual bool GetStyle(long position, wxTextAttr& style);
  67
  68     // translate between the position (which is just an index in the text ctrl
  69     // considering all its contents as a single strings) and (x, y) coordinates
  70     // which represent column and line.
  71     virtual long XYToPosition(long x, long y) const;
  72     virtual bool PositionToXY(long pos, long *x, long *y) const;
  73
  74     virtual void ShowPosition(long pos);
  75
  76     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
  77     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
  78                                             wxTextCoord *col,
  79                                             wxTextCoord *row) const
  80     {
  81         return wxTextCtrlBase::HitTest(pt, col, row);
  82     }
  83
  84     // Clipboard operations
  85     virtual void Copy();
  86     virtual void Cut();
  87     virtual void Paste();
  88
  89     // Insertion point
  90     virtual void SetInsertionPoint(long pos);
  91     virtual long GetInsertionPoint() const;
  92     virtual wxTextPos GetLastPosition() const;
  93
  94     virtual void SetSelection(long from, long to);
  95     virtual void SetEditable(bool editable);
  96
  97     // Overridden wxWindow methods
  98     virtual void SetWindowStyleFlag( long style );
  99     virtual bool Enable( bool enable = true );
 100
 101     // Implementation from now on
 102     void OnDropFiles( wxDropFilesEvent &event );
 103     void OnChar( wxKeyEvent &event );
 104
 105     void OnCut(wxCommandEvent& event);
 106     void OnCopy(wxCommandEvent& event);
 107     void OnPaste(wxCommandEvent& event);
 108     void OnUndo(wxCommandEvent& event);
 109     void OnRedo(wxCommandEvent& event);
 110
 111     void OnUpdateCut(wxUpdateUIEvent& event);
 112     void OnUpdateCopy(wxUpdateUIEvent& event);
 113     void OnUpdatePaste(wxUpdateUIEvent& event);
 114     void OnUpdateUndo(wxUpdateUIEvent& event);
 115     void OnUpdateRedo(wxUpdateUIEvent& event);
 116
 117     bool SetFont(const wxFont& font);
 118     bool SetForegroundColour(const wxColour& colour);
 119     bool SetBackgroundColour(const wxColour& colour);
 120
 121     GtkWidget* GetConnectWidget();
 122
 123     void SetUpdateFont(bool WXUNUSED(update)) { }
 124
 125     // implementation only from now on
 126
 127     // tell the control to ignore next text changed signal
 128     void IgnoreNextTextUpdate(int n = 1) { m_countUpdatesToIgnore = n; }
 129
 130     // should we ignore the changed signal? always resets the flag
 131     bool IgnoreTextUpdate();
 132
 133     // call this to indicate that the control is about to be changed
 134     // programmatically and so m_modified flag shouldn't be set
 135     void DontMarkDirtyOnNextChange() { m_dontMarkDirty = true; }
 136
 137     // should we mark the control as dirty? always resets the flag
 138     bool MarkDirtyOnChange();
 139
 140     // always let GTK have mouse release events for multiline controls
 141     virtual bool GTKProcessEvent(wxEvent& event) const;
 142
 143
 144     static wxVisualAttributes
 145     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 146
 147 protected:
 148     // wxGTK-specific: called recursively by Enable,
 149     // to give widgets an oppprtunity to correct their colours after they
 150     // have been changed by Enable
 151     virtual void OnEnabled(bool enable);
 152
 153     // overridden wxWindow virtual methods
 154     virtual wxSize DoGetBestSize() const;
 155     virtual void DoApplyWidgetStyle(GtkRcStyle *style);
 156     virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
 157
 158     virtual void DoFreeze();
 159     virtual void DoThaw();
 160
 161     // common part of all ctors
 162     void Init();
 163
 164     // Widgets that use the style->base colour for the BG colour should
 165     // override this and return true.
 166     virtual bool UseGTKStyleBase() const { return true; }
 167
 168     virtual void DoSetValue(const wxString &value, int flags = 0);
 169
 170     // wrappers hiding the differences between functions doing the same thing
 171     // for GtkTextView and GtkEntry (all of them use current window style to
 172     // set the given characteristic)
 173     void GTKSetEditable();
 174     void GTKSetVisibility();
 175     void GTKSetActivatesDefault();
 176     void GTKSetWrapMode();
 177     void GTKSetJustification();
 178
 179 private:
 180     // overridden wxTextEntry virtual methods
 181     virtual GtkEditable *GetEditable() const;
 182     virtual GtkEntry *GetEntry() const;
 183     virtual void EnableTextChangedEvents(bool enable);
 184
 185     // change the font for everything in this control
 186     void ChangeFontGlobally();
 187
 188     // get the encoding which is used in this control: this looks at our font
 189     // and default style but not the current style (i.e. the style for the
 190     // current position); returns wxFONTENCODING_SYSTEM if we have no specific
 191     // encoding
 192     wxFontEncoding GetTextEncoding() const;
 193
 194     // returns either m_text or m_buffer depending on whether the control is
 195     // single- or multi-line; convenient for the GTK+ functions which work with
 196     // both
 197     void *GetTextObject() const
 198     {
 199         return IsMultiLine() ? static_cast<void *>(m_buffer)
 200                              : static_cast<void *>(m_text);
 201     }
 202
 203
 204     // the widget used for single line controls
 205     GtkWidget  *m_text;
 206
 207     bool        m_modified:1;
 208     bool        m_dontMarkDirty:1;
 209
 210     int         m_countUpdatesToIgnore;
 211
 212     // Our text buffer. Convenient, and holds the buffer while using
 213     // a dummy one when frozen
 214     GtkTextBuffer *m_buffer;
 215
 216     GtkTextMark* m_showPositionOnThaw;
 217
 218     // For wxTE_AUTO_URL
 219     void OnUrlMouseEvent(wxMouseEvent&);
 220
 221     DECLARE_EVENT_TABLE()
 222     DECLARE_DYNAMIC_CLASS(wxTextCtrl)
 223 };
 224
 225 #endif // _WX_GTK_TEXTCTRL_H_