| 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 |