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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/univ/control.cpp
3 // Purpose: universal wxControl: adds handling of mnemonics
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 14.08.00
7 // RCS-ID: $Id$
8 // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #if wxUSE_CONTROLS
27
28 #include "wx/control.h"
29
30 #ifndef WX_PRECOMP
31 #include "wx/app.h"
32 #include "wx/dcclient.h"
33 #endif
34
35 #include "wx/univ/renderer.h"
36 #include "wx/univ/inphand.h"
37 #include "wx/univ/theme.h"
38
39 // ============================================================================
40 // implementation
41 // ============================================================================
42
43 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
44
45 BEGIN_EVENT_TABLE(wxControl, wxControlBase)
46 WX_EVENT_TABLE_INPUT_CONSUMER(wxControl)
47 END_EVENT_TABLE()
48
49 WX_FORWARD_TO_INPUT_CONSUMER(wxControl)
50
51 // ----------------------------------------------------------------------------
52 // creation
53 // ----------------------------------------------------------------------------
54
55 void wxControl::Init()
56 {
57 m_indexAccel = -1;
58 }
59
60 bool wxControl::Create(wxWindow *parent,
61 wxWindowID id,
62 const wxPoint& pos,
63 const wxSize& size,
64 long style,
65 const wxValidator& validator,
66 const wxString& name)
67 {
68 if ( !wxControlBase::Create(parent, id, pos, size, style, validator, name) )
69 {
70 // underlying window creation failed?
71 return false;
72 }
73
74 return true;
75 }
76
77 // ----------------------------------------------------------------------------
78 // mnemonics handling
79 // ----------------------------------------------------------------------------
80
81 /* static */
82 int wxControl::FindAccelIndex(const wxString& label, wxString *labelOnly)
83 {
84 // the character following MNEMONIC_PREFIX is the accelerator for this
85 // control unless it is MNEMONIC_PREFIX too - this allows to insert
86 // literal MNEMONIC_PREFIX chars into the label
87 static const wxChar MNEMONIC_PREFIX = _T('&');
88
89 if ( labelOnly )
90 {
91 labelOnly->Empty();
92 labelOnly->Alloc(label.length());
93 }
94
95 int indexAccel = -1;
96 for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ )
97 {
98 if ( *pc == MNEMONIC_PREFIX )
99 {
100 pc++; // skip it
101 if ( *pc != MNEMONIC_PREFIX )
102 {
103 if ( indexAccel == -1 )
104 {
105 // remember it (-1 is for MNEMONIC_PREFIX itself
106 indexAccel = pc - label.c_str() - 1;
107 }
108 else
109 {
110 wxFAIL_MSG(_T("duplicate accel char in control label"));
111 }
112 }
113 }
114
115 if ( labelOnly )
116 {
117 *labelOnly += *pc;
118 }
119 }
120
121 return indexAccel;
122 }
123
124 void wxControl::SetLabel(const wxString& label)
125 {
126 // save original label
127 wxControlBase::SetLabel(label);
128
129 UnivDoSetLabel(label);
130 }
131
132 void wxControl::UnivDoSetLabel(const wxString& label)
133 {
134 wxString labelOld = m_label;
135 m_indexAccel = FindAccelIndex(label, &m_label);
136
137 if ( m_label != labelOld )
138 {
139 Refresh();
140 }
141 }
142
143 #endif // wxUSE_CONTROLS