include/wx/msw/wince/textctrlce.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/wince/textctrlce.h
   3 // Purpose:     wxTextCtrl implementation for smart phones driven by WinCE
   4 // Author:      Wlodzimierz ABX Skiba
   5 // Modified by:
   6 // Created:     30.08.2004
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Wlodzimierz Skiba
   9 // License:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TEXTCTRLCE_H_
  13 #define _WX_TEXTCTRLCE_H_
  14
  15 #include "wx/dynarray.h"
  16
  17 class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
  18 WX_DEFINE_EXPORTED_ARRAY_PTR(wxTextCtrl *, wxArrayTextSpins);
  19
  20 class WXDLLIMPEXP_CORE wxTextCtrl : public wxTextCtrlBase
  21 {
  22 public:
  23     // creation
  24     // --------
  25
  26     wxTextCtrl() { Init(); }
  27     wxTextCtrl(wxWindow *parent, wxWindowID id,
  28                const wxString& value = wxEmptyString,
  29                const wxPoint& pos = wxDefaultPosition,
  30                const wxSize& size = wxDefaultSize,
  31                long style = 0,
  32                const wxValidator& validator = wxDefaultValidator,
  33                const wxString& name = wxTextCtrlNameStr)
  34     {
  35         Init();
  36
  37         Create(parent, id, value, pos, size, style, validator, name);
  38     }
  39     virtual ~wxTextCtrl();
  40
  41     bool Create(wxWindow *parent, wxWindowID id,
  42                 const wxString& value = wxEmptyString,
  43                 const wxPoint& pos = wxDefaultPosition,
  44                 const wxSize& size = wxDefaultSize,
  45                 long style = 0,
  46                 const wxValidator& validator = wxDefaultValidator,
  47                 const wxString& name = wxTextCtrlNameStr);
  48
  49     // implement base class pure virtuals
  50     // ----------------------------------
  51
  52     virtual wxString GetValue() const;
  53     virtual void SetValue(const wxString& value) { DoSetValue(value, SetValue_SendEvent); }
  54
  55     virtual void ChangeValue(const wxString &value) { DoSetValue(value); }
  56
  57     virtual wxString GetRange(long from, long to) const;
  58
  59     virtual int GetLineLength(long lineNo) const;
  60     virtual wxString GetLineText(long lineNo) const;
  61     virtual int GetNumberOfLines() const;
  62
  63     virtual bool IsModified() const;
  64     virtual bool IsEditable() const;
  65
  66     virtual void GetSelection(long* from, long* to) const;
  67
  68     // operations
  69     // ----------
  70
  71     // editing
  72     virtual void Clear();
  73     virtual void Replace(long from, long to, const wxString& value);
  74     virtual void Remove(long from, long to);
  75
  76     // load the controls contents from the file
  77     virtual bool LoadFile(const wxString& file);
  78
  79     // clears the dirty flag
  80     virtual void MarkDirty();
  81     virtual void DiscardEdits();
  82
  83     virtual void SetMaxLength(unsigned long len);
  84
  85     // writing text inserts it at the current position, appending always
  86     // inserts it at the end
  87     virtual void WriteText(const wxString& text);
  88     virtual void AppendText(const wxString& text);
  89
  90     // translate between the position (which is just an index in the text ctrl
  91     // considering all its contents as a single strings) and (x, y) coordinates
  92     // which represent column and line.
  93     virtual long XYToPosition(long x, long y) const;
  94     virtual bool PositionToXY(long pos, long *x, long *y) const;
  95
  96     virtual void ShowPosition(long pos);
  97     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
  98     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
  99                                             wxTextCoord *col,
 100                                             wxTextCoord *row) const
 101     {
 102         return wxTextCtrlBase::HitTest(pt, col, row);
 103     }
 104
 105     // Clipboard operations
 106     virtual void Copy();
 107     virtual void Cut();
 108     virtual void Paste();
 109
 110     virtual bool CanCopy() const;
 111     virtual bool CanCut() const;
 112     virtual bool CanPaste() const;
 113
 114     // Undo/redo
 115     virtual void Undo();
 116     virtual void Redo();
 117
 118     virtual bool CanUndo() const;
 119     virtual bool CanRedo() const;
 120
 121     // Insertion point
 122     virtual void SetInsertionPoint(long pos);
 123     virtual void SetInsertionPointEnd();
 124     virtual long GetInsertionPoint() const;
 125     virtual wxTextPos GetLastPosition() const;
 126
 127     virtual void SetSelection(long from, long to);
 128     virtual void SetEditable(bool editable);
 129
 130     // Caret handling (Windows only)
 131
 132     bool ShowNativeCaret(bool show = true);
 133     bool HideNativeCaret() { return ShowNativeCaret(false); }
 134
 135     // Implementation from now on
 136     // --------------------------
 137
 138     virtual void Command(wxCommandEvent& event);
 139     virtual bool MSWCommand(WXUINT param, WXWORD id);
 140
 141     virtual void AdoptAttributesFromHWND();
 142
 143     virtual bool AcceptsFocus() const;
 144
 145     // callbacks
 146     void OnDropFiles(wxDropFilesEvent& event);
 147     void OnChar(wxKeyEvent& event); // Process 'enter' if required
 148
 149     void OnCut(wxCommandEvent& event);
 150     void OnCopy(wxCommandEvent& event);
 151     void OnPaste(wxCommandEvent& event);
 152     void OnUndo(wxCommandEvent& event);
 153     void OnRedo(wxCommandEvent& event);
 154     void OnDelete(wxCommandEvent& event);
 155     void OnSelectAll(wxCommandEvent& event);
 156
 157     void OnUpdateCut(wxUpdateUIEvent& event);
 158     void OnUpdateCopy(wxUpdateUIEvent& event);
 159     void OnUpdatePaste(wxUpdateUIEvent& event);
 160     void OnUpdateUndo(wxUpdateUIEvent& event);
 161     void OnUpdateRedo(wxUpdateUIEvent& event);
 162     void OnUpdateDelete(wxUpdateUIEvent& event);
 163     void OnUpdateSelectAll(wxUpdateUIEvent& event);
 164
 165     // Show a context menu for Rich Edit controls (the standard
 166     // EDIT control has one already)
 167     void OnRightClick(wxMouseEvent& event);
 168
 169     // be sure the caret remains invisible if the user
 170     // called HideNativeCaret() before
 171     void OnSetFocus(wxFocusEvent& event);
 172
 173     // get the subclassed window proc of the buddy
 174     WXFARPROC GetBuddyWndProc() const { return m_wndProcBuddy; }
 175
 176     // intercept WM_GETDLGCODE
 177     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 178
 179 protected:
 180     // common part of all ctors
 181     void Init();
 182
 183     // call this to increase the size limit (will do nothing if the current
 184     // limit is big enough)
 185     //
 186     // returns true if we increased the limit to allow entering more text,
 187     // false if we hit the limit set by SetMaxLength() and so didn't change it
 188     bool AdjustSpaceLimit();
 189
 190     void DoSetValue(const wxString &value, int flags = 0);
 191
 192     // replace the contents of the selection or of the entire control with the
 193     // given text
 194     void DoWriteText(const wxString& text, int flags = SetValue_SelectionOnly);
 195
 196     // set the selection possibly without scrolling the caret into view
 197     void DoSetSelection(long from, long to, bool scrollCaret = true);
 198
 199     // return true if there is a non empty selection in the control
 200     bool HasSelection() const;
 201
 202     // get the length of the line containing the character at the given
 203     // position
 204     long GetLengthOfLineContainingPos(long pos) const;
 205
 206     // send TEXT_UPDATED event, return true if it was handled, false otherwise
 207     bool SendUpdateEvent();
 208
 209     // override some base class virtuals
 210     virtual void DoMoveWindow(int x, int y, int width, int height);
 211     virtual wxSize DoGetBestSize() const;
 212
 213     virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
 214
 215     // if true, SendUpdateEvent() will eat the next event (see comments in the
 216     // code as to why this is needed)
 217     bool m_suppressNextUpdate;
 218
 219     // all existing wxTextCtrl - this allows to find the one corresponding to
 220     // the given buddy window in GetSpinTextCtrl()
 221     static wxArrayTextSpins ms_allTextSpins;
 222
 223 protected:
 224
 225     // the data for the "buddy" list
 226     WXHWND     m_hwndBuddy;
 227     WXFARPROC  m_wndProcBuddy;
 228
 229 private:
 230     DECLARE_EVENT_TABLE()
 231     DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextCtrl)
 232
 233     bool m_isNativeCaretShown;
 234 };
 235
 236 #endif // _WX_TEXTCTRLCE_H_