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: control.cpp 41183 2006-09-12 22:20:15Z VZ $
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
43IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
44
45BEGIN_EVENT_TABLE(wxControl, wxControlBase)
46    WX_EVENT_TABLE_INPUT_CONSUMER(wxControl)
47END_EVENT_TABLE()
48
49WX_FORWARD_TO_INPUT_CONSUMER(wxControl)
50
51// ----------------------------------------------------------------------------
52// creation
53// ----------------------------------------------------------------------------
54
55void wxControl::Init()
56{
57    m_indexAccel = -1;
58}
59
60bool 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 */
82int 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
124void wxControl::SetLabel(const wxString& label)
125{
126    wxString labelOld = m_label;
127    m_indexAccel = FindAccelIndex(label, &m_label);
128
129    if ( m_label != labelOld )
130    {
131        Refresh();
132    }
133}
134
135wxString wxControl::GetLabel() const
136{
137    return m_label;
138}
139
140#endif // wxUSE_CONTROLS
141