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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 license
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 #ifdef __GNUG__
17 #pragma implementation "control.h"
18 #endif
19
20 // ----------------------------------------------------------------------------
21 // headers
22 // ----------------------------------------------------------------------------
23
24 #include "wx/wxprec.h"
25
26 #ifdef __BORLANDC__
27 #pragma hdrstop
28 #endif
29
30 #if wxUSE_CONTROLS
31
32 #ifndef WX_PRECOMP
33 #include "wx/app.h"
34 #include "wx/control.h"
35 #include "wx/dcclient.h"
36 #endif
37
38 #include "wx/univ/renderer.h"
39 #include "wx/univ/inphand.h"
40 #include "wx/univ/theme.h"
41
42 // ============================================================================
43 // implementation
44 // ============================================================================
45
46 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
47
48 BEGIN_EVENT_TABLE(wxControl, wxControlBase)
49 WX_EVENT_TABLE_INPUT_CONSUMER(wxControl)
50 END_EVENT_TABLE()
51
52 WX_FORWARD_TO_INPUT_CONSUMER(wxControl)
53
54 // ----------------------------------------------------------------------------
55 // creation
56 // ----------------------------------------------------------------------------
57
58 void wxControl::Init()
59 {
60 m_indexAccel = -1;
61
62 m_inputHandler = (wxInputHandler *)NULL;
63 }
64
65 bool wxControl::Create(wxWindow *parent,
66 wxWindowID id,
67 const wxPoint& pos,
68 const wxSize& size,
69 long style,
70 const wxValidator& validator,
71 const wxString& name)
72 {
73 // we use wxNO_FULL_REPAINT_ON_RESIZE by default as it results in much
74 // less flicker and none of the standard controls needs to be entirely
75 // repainted after resize anyhow
76 if ( !wxControlBase::Create(parent, id, pos, size,
77 style | wxNO_FULL_REPAINT_ON_RESIZE,
78 validator, name) )
79 {
80 // underlying window creation failed?
81 return FALSE;
82 }
83
84 return TRUE;
85 }
86
87 // ----------------------------------------------------------------------------
88 // mnemonics handling
89 // ----------------------------------------------------------------------------
90
91 /* static */
92 int wxControl::FindAccelIndex(const wxString& label, wxString *labelOnly)
93 {
94 // the character following MNEMONIC_PREFIX is the accelerator for this
95 // control unless it is MNEMONIC_PREFIX too - this allows to insert
96 // literal MNEMONIC_PREFIX chars into the label
97 static const wxChar MNEMONIC_PREFIX = _T('&');
98
99 if ( labelOnly )
100 {
101 labelOnly->Empty();
102 labelOnly->Alloc(label.length());
103 }
104
105 int indexAccel = -1;
106 for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ )
107 {
108 if ( *pc == MNEMONIC_PREFIX )
109 {
110 pc++; // skip it
111 if ( *pc != MNEMONIC_PREFIX )
112 {
113 if ( indexAccel == -1 )
114 {
115 // remember it (-1 is for MNEMONIC_PREFIX itself
116 indexAccel = pc - label.c_str() - 1;
117 }
118 else
119 {
120 wxFAIL_MSG(_T("duplicate accel char in control label"));
121 }
122 }
123 }
124
125 if ( labelOnly )
126 {
127 *labelOnly += *pc;
128 }
129 }
130
131 return indexAccel;
132 }
133
134 void wxControl::SetLabel(const wxString& label)
135 {
136 wxString labelOld = m_label;
137 m_indexAccel = FindAccelIndex(label, &m_label);
138
139 if ( m_label != labelOld )
140 {
141 Refresh();
142 }
143 }
144
145 wxString wxControl::GetLabel() const
146 {
147 return m_label;
148 }
149
150 #endif // wxUSE_CONTROLS