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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 Vadim Zeitlin <vadim@wxwindows.org>
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 EVT_KEY_DOWN(wxControl::OnKeyDown)
50 EVT_KEY_UP(wxControl::OnKeyUp)
51
52 EVT_MOUSE_EVENTS(wxControl::OnMouse)
53
54 EVT_SET_FOCUS(wxControl::OnFocus)
55 EVT_KILL_FOCUS(wxControl::OnFocus)
56
57 EVT_ACTIVATE(wxControl::OnActivate)
58 END_EVENT_TABLE()
59
60 // ----------------------------------------------------------------------------
61 // creation
62 // ----------------------------------------------------------------------------
63
64 void wxControl::Init()
65 {
66 m_indexAccel = -1;
67
68 m_handler = (wxInputHandler *)NULL;
69 }
70
71 bool wxControl::Create(wxWindow *parent,
72 wxWindowID id,
73 const wxPoint& pos,
74 const wxSize& size,
75 long style,
76 const wxValidator& validator,
77 const wxString& name)
78 {
79 if ( !wxControlBase::Create(parent, id, pos, size, style, validator, name) )
80 return FALSE;
81
82 return TRUE;
83 }
84
85 // ----------------------------------------------------------------------------
86 // mnemonics handling
87 // ----------------------------------------------------------------------------
88
89 /* static */
90 int wxControl::FindAccelIndex(const wxString& label, wxString *labelOnly)
91 {
92 // the character following MNEMONIC_PREFIX is the accelerator for this
93 // control unless it is MNEMONIC_PREFIX too - this allows to insert
94 // literal MNEMONIC_PREFIX chars into the label
95 static const wxChar MNEMONIC_PREFIX = _T('&');
96
97 if ( labelOnly )
98 {
99 labelOnly->Empty();
100 labelOnly->Alloc(label.length());
101 }
102
103 int indexAccel = -1;
104 for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ )
105 {
106 if ( *pc == MNEMONIC_PREFIX )
107 {
108 pc++; // skip it
109 if ( *pc != MNEMONIC_PREFIX )
110 {
111 if ( indexAccel == -1 )
112 {
113 // remember it (-1 is for MNEMONIC_PREFIX itself
114 indexAccel = pc - label.c_str() - 1;
115 }
116 else
117 {
118 wxFAIL_MSG(_T("duplicate accel char in control label"));
119 }
120 }
121 }
122
123 if ( labelOnly )
124 {
125 *labelOnly += *pc;
126 }
127 }
128
129 return indexAccel;
130 }
131
132 void wxControl::SetLabel(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 wxString wxControl::GetLabel() const
144 {
145 return m_label;
146 }
147
148 // ----------------------------------------------------------------------------
149 // focus/activation handling
150 // ----------------------------------------------------------------------------
151
152 void wxControl::OnFocus(wxFocusEvent& event)
153 {
154 if ( m_handler && m_handler->HandleFocus(this, event) )
155 Refresh();
156 else
157 event.Skip();
158 }
159
160 void wxControl::OnActivate(wxActivateEvent& event)
161 {
162 if ( m_handler && m_handler->HandleActivation(this, event.GetActive()) )
163 Refresh();
164 else
165 event.Skip();
166 }
167
168 // ----------------------------------------------------------------------------
169 // input processing
170 // ----------------------------------------------------------------------------
171
172 void wxControl::CreateInputHandler(const wxString& inphandler)
173 {
174 m_handler = wxTheme::Get()->GetInputHandler(inphandler);
175 }
176
177 void wxControl::OnKeyDown(wxKeyEvent& event)
178 {
179 if ( !m_handler || !m_handler->HandleKey(this, event, TRUE) )
180 event.Skip();
181 }
182
183 void wxControl::OnKeyUp(wxKeyEvent& event)
184 {
185 if ( !m_handler || !m_handler->HandleKey(this, event, FALSE) )
186 event.Skip();
187 }
188
189 void wxControl::OnMouse(wxMouseEvent& event)
190 {
191 if ( m_handler )
192 {
193 if ( event.Moving() || event.Entering() || event.Leaving() )
194 {
195 if ( m_handler->HandleMouseMove(this, event) )
196 return;
197 }
198 else // a click action
199 {
200 if ( m_handler->HandleMouse(this, event) )
201 return;
202 }
203 }
204
205 event.Skip();
206 }
207
208 // ----------------------------------------------------------------------------
209 // the actions
210 // ----------------------------------------------------------------------------
211
212 bool wxControl::PerformAction(const wxControlAction& action,
213 long numArg,
214 const wxString& strArg)
215 {
216 return FALSE;
217 }
218
219 #endif // wxUSE_CONTROLS