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Correct weak ref usage which triggered an assert
[wxWidgets.git] / src / common / textentrycmn.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/textentrycmn.cpp
3 // Purpose: wxTextEntryBase implementation
4 // Author: Vadim Zeitlin
5 // Created: 2007-09-26
6 // RCS-ID: $Id$
7 // Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwindows.org>
8 // Licence: wxWindows licence
9 ///////////////////////////////////////////////////////////////////////////////
10
11 // ============================================================================
12 // declarations
13 // ============================================================================
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 // for compilers that support precompilation, includes "wx.h".
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #if wxUSE_TEXTCTRL || wxUSE_COMBOBOX
27
28 #ifndef WX_PRECOMP
29 #include "wx/window.h"
30 #include "wx/dataobj.h"
31 #endif //WX_PRECOMP
32
33 #include "wx/textentry.h"
34 #include "wx/clipbrd.h"
35
36 // ============================================================================
37 // wxTextEntryBase implementation
38 // ============================================================================
39
40 wxString wxTextEntryBase::GetRange(long from, long to) const
41 {
42 wxString sel;
43 if ( from < to )
44 {
45 sel = GetValue().substr(from, to - from);
46 }
47
48 return sel;
49 }
50
51 void wxTextEntryBase::AppendText(const wxString& text)
52 {
53 SetInsertionPointEnd();
54 WriteText(text);
55 }
56
57 void wxTextEntryBase::DoSetValue(const wxString& value, int flags)
58 {
59 EventsSuppressor noeventsIf(this, !(flags & SetValue_SendEvent));
60
61 SelectAll();
62 WriteText(value);
63 }
64
65 void wxTextEntryBase::Replace(long from, long to, const wxString& value)
66 {
67 {
68 EventsSuppressor noevents(this);
69 Remove(from, to);
70 }
71
72 WriteText(value);
73 }
74
75 bool wxTextEntryBase::HasSelection() const
76 {
77 long from, to;
78 GetSelection(&from, &to);
79
80 return from < to;
81 }
82
83 void wxTextEntryBase::RemoveSelection()
84 {
85 long from, to;
86 GetSelection(& from, & to);
87 if (from != -1 && to != -1)
88 Remove(from, to);
89 }
90
91 wxString wxTextEntryBase::GetStringSelection() const
92 {
93 long from, to;
94 GetSelection(&from, &to);
95
96 return GetRange(from, to);
97 }
98
99 bool wxTextEntryBase::CanCopy() const
100 {
101 return HasSelection();
102 }
103
104 bool wxTextEntryBase::CanCut() const
105 {
106 return CanCopy() && IsEditable();
107 }
108
109 bool wxTextEntryBase::CanPaste() const
110 {
111 if ( IsEditable() )
112 {
113 #if wxUSE_CLIPBOARD
114 // check if there is any text on the clipboard
115 if ( wxTheClipboard->IsSupported(wxDF_TEXT)
116 #if wxUSE_UNICODE
117 || wxTheClipboard->IsSupported(wxDF_UNICODETEXT)
118 #endif // wxUSE_UNICODE
119 )
120 {
121 return true;
122 }
123 #endif // wxUSE_CLIPBOARD
124 }
125
126 return false;
127 }
128
129 #endif // wxUSE_TEXTCTRL || wxUSE_COMBOBOX