include/wx/textctrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.h
   3 // Purpose:     wxTextCtrlBase class - the interface of wxTextCtrl
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TEXTCTRL_H_BASE_
  13 #define _WX_TEXTCTRL_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/defs.h"
  20 #include "wx/control.h"         // the base class
  21
  22 // 16-bit Borland 4.0 doesn't seem to allow multiple inheritance with wxWindow
  23 // and streambuf: it complains about deriving a huge class from the huge class
  24 // streambuf. !! Also, can't use streambuf if making or using a DLL :-(
  25
  26 #if (defined(__BORLANDC__)) || defined(__MWERKS__) || defined(_WINDLL) || defined(WXUSINGDLL) || defined(WXMAKINGDLL)
  27     #define NO_TEXT_WINDOW_STREAM
  28 #endif
  29
  30 #ifndef NO_TEXT_WINDOW_STREAM
  31     #if wxUSE_STD_IOSTREAM
  32         #include "ioswrap.h"    // for iostream classes if we need them
  33     #else // !wxUSE_STD_IOSTREAM
  34         // can't compile this feature in if we don't use streams at all
  35         #define NO_TEXT_WINDOW_STREAM
  36     #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
  37 #endif
  38
  39 class WXDLLEXPORT wxTextCtrl;
  40
  41 // ----------------------------------------------------------------------------
  42 // constants
  43 // ----------------------------------------------------------------------------
  44
  45 WXDLLEXPORT_DATA(extern const wxChar*) wxTextCtrlNameStr;
  46 WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
  47
  48 // ----------------------------------------------------------------------------
  49 // wxTextCtrl: a single or multiple line text zone where user can enter and
  50 // edit text
  51 // ----------------------------------------------------------------------------
  52
  53 class WXDLLEXPORT wxTextCtrlBase : public wxControl
  54 #ifndef NO_TEXT_WINDOW_STREAM
  55                                  , public streambuf
  56 #endif
  57
  58 {
  59 public:
  60     // creation
  61     // --------
  62
  63     wxTextCtrlBase();
  64
  65     // accessors
  66     // ---------
  67
  68     virtual wxString GetValue() const = 0;
  69     virtual void SetValue(const wxString& value) = 0;
  70
  71     virtual int GetLineLength(long lineNo) const = 0;
  72     virtual wxString GetLineText(long lineNo) const = 0;
  73     virtual int GetNumberOfLines() const = 0;
  74
  75     virtual bool IsModified() const = 0;
  76     virtual bool IsEditable() const = 0;
  77
  78     // If the return values from and to are the same, there is no selection.
  79     virtual void GetSelection(long* from, long* to) const = 0;
  80
  81     // operations
  82     // ----------
  83
  84     // editing
  85     virtual void Clear() = 0;
  86     virtual void Replace(long from, long to, const wxString& value) = 0;
  87     virtual void Remove(long from, long to) = 0;
  88
  89     // load/save the controls contents from/to the file
  90     virtual bool LoadFile(const wxString& file);
  91     virtual bool SaveFile(const wxString& file = wxEmptyString);
  92
  93     // clears the dirty flag
  94     virtual void DiscardEdits() = 0;
  95
  96     // writing text inserts it at the current position, appending always
  97     // inserts it at the end
  98     virtual void WriteText(const wxString& text) = 0;
  99     virtual void AppendText(const wxString& text) = 0;
 100
 101     // translate between the position (which is just an index in the text ctrl
 102     // considering all its contents as a single strings) and (x, y) coordinates
 103     // which represent column and line.
 104     virtual long XYToPosition(long x, long y) const = 0;
 105     virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
 106
 107     virtual void ShowPosition(long pos) = 0;
 108
 109     // Clipboard operations
 110     virtual void Copy() = 0;
 111     virtual void Cut() = 0;
 112     virtual void Paste() = 0;
 113
 114     virtual bool CanCopy() const = 0;
 115     virtual bool CanCut() const = 0;
 116     virtual bool CanPaste() const = 0;
 117
 118     // Undo/redo
 119     virtual void Undo() = 0;
 120     virtual void Redo() = 0;
 121
 122     virtual bool CanUndo() const = 0;
 123     virtual bool CanRedo() const = 0;
 124
 125     // Insertion point
 126     virtual void SetInsertionPoint(long pos) = 0;
 127     virtual void SetInsertionPointEnd() = 0;
 128     virtual long GetInsertionPoint() const = 0;
 129     virtual long GetLastPosition() const = 0;
 130
 131     virtual void SetSelection(long from, long to) = 0;
 132     virtual void SetEditable(bool editable) = 0;
 133
 134     // streambuf methods
 135 #ifndef NO_TEXT_WINDOW_STREAM
 136     int overflow(int i);
 137     int sync();
 138     int underflow();
 139 #endif // NO_TEXT_WINDOW_STREAM
 140
 141     // stream-like insertion operators: these are always available, whether we
 142     // were, or not, compiled with streambuf support
 143     wxTextCtrl& operator<<(const wxString& s);
 144     wxTextCtrl& operator<<(int i);
 145     wxTextCtrl& operator<<(long i);
 146     wxTextCtrl& operator<<(float f);
 147     wxTextCtrl& operator<<(double d);
 148     wxTextCtrl& operator<<(const char c);
 149
 150     // obsolete functions
 151 #if WXWIN_COMPATIBILITY
 152     bool Modified() const { return IsModified(); }
 153 #endif
 154
 155 private:
 156     // the name of the last file loaded with LoadFile() which will be used by
 157     // SaveFile() by default
 158     wxString m_filename;
 159 };
 160
 161 // ----------------------------------------------------------------------------
 162 // include the platform-dependent class definition
 163 // ----------------------------------------------------------------------------
 164
 165 #if defined(__WXMSW__)
 166     #include "wx/msw/textctrl.h"
 167 #elif defined(__WXMOTIF__)
 168     #include "wx/motif/textctrl.h"
 169 #elif defined(__WXGTK__)
 170     #include "wx/gtk/textctrl.h"
 171 #elif defined(__WXQT__)
 172     #include "wx/qt/textctrl.h"
 173 #elif defined(__WXMAC__)
 174     #include "wx/mac/textctrl.h"
 175 #elif defined(__WXSTUBS__)
 176     #include "wx/stubs/textctrl.h"
 177 #endif
 178
 179 #endif
 180     // _WX_TEXTCTRL_H_BASE_