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1/////////////////////////////////////////////////////////////////////////////
2// Name: radiobut.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10
11#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
12#pragma implementation "radiobut.h"
13#endif
14
15// For compilers that support precompilation, includes "wx.h".
16#include "wx/wxprec.h"
17
18#if wxUSE_RADIOBOX
19
20#include "wx/radiobut.h"
21
22#include "wx/gtk/private.h"
23
24//-----------------------------------------------------------------------------
25// idle system
26//-----------------------------------------------------------------------------
27
28extern void wxapp_install_idle_handler();
29extern bool g_isIdle;
30
31//-----------------------------------------------------------------------------
32// data
33//-----------------------------------------------------------------------------
34
35extern bool g_blockEventsOnDrag;
36extern wxCursor g_globalCursor;
37extern wxWindowGTK *g_delayedFocus;
38
39//-----------------------------------------------------------------------------
40// "clicked"
41//-----------------------------------------------------------------------------
42
43static
44void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioButton *rb )
45{
46 if (g_isIdle) wxapp_install_idle_handler();
47
48 if (!rb->m_hasVMT) return;
49
50 if (g_blockEventsOnDrag) return;
51
52 if (!button->active) return;
53
54 if (rb->m_blockEvent) return;
55
56 wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
57 event.SetInt( rb->GetValue() );
58 event.SetEventObject( rb );
59 rb->GetEventHandler()->ProcessEvent( event );
60}
61
62//-----------------------------------------------------------------------------
63// wxRadioButton
64//-----------------------------------------------------------------------------
65
66IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
67
68bool wxRadioButton::Create( wxWindow *parent,
69 wxWindowID id,
70 const wxString& label,
71 const wxPoint& pos,
72 const wxSize& size,
73 long style,
74 const wxValidator& validator,
75 const wxString& name )
76{
77 m_acceptsFocus = TRUE;
78 m_needParent = TRUE;
79
80 m_blockEvent = FALSE;
81
82 if (!PreCreation( parent, pos, size ) ||
83 !CreateBase( parent, id, pos, size, style, validator, name ))
84 {
85 wxFAIL_MSG( wxT("wxRadioButton creation failed") );
86 return FALSE;
87 }
88
89 if (HasFlag(wxRB_GROUP))
90 {
91 // start a new group
92 m_radioButtonGroup = (GSList*) NULL;
93 }
94 else
95 {
96 // search backward for last group start
97 wxRadioButton *chief = (wxRadioButton*) NULL;
98 wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
99 while (node)
100 {
101 wxWindow *child = node->GetData();
102 if (child->IsRadioButton())
103 {
104 chief = (wxRadioButton*) child;
105 if (child->HasFlag(wxRB_GROUP))
106 break;
107 }
108 node = node->GetPrevious();
109 }
110 if (chief)
111 {
112 // we are part of the group started by chief
113 m_radioButtonGroup = gtk_radio_button_group( GTK_RADIO_BUTTON(chief->m_widget) );
114 }
115 else
116 {
117 // start a new group
118 m_radioButtonGroup = (GSList*) NULL;
119 }
120 }
121
122 m_widget = gtk_radio_button_new_with_label( m_radioButtonGroup, wxGTK_CONV( label ) );
123
124 SetLabel(label);
125
126 gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
127 GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
128
129 m_parent->DoAddChild( this );
130
131 PostCreation(size);
132
133 return TRUE;
134}
135
136void wxRadioButton::SetLabel( const wxString& label )
137{
138 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") );
139
140 wxControl::SetLabel( label );
141 GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(m_widget) );
142#ifdef __WXGTK20__
143 wxString label2 = PrepareLabelMnemonics( label );
144 gtk_label_set_text_with_mnemonic( g_label, wxGTK_CONV( label2 ) );
145#else
146 gtk_label_set( g_label, wxGTK_CONV( GetLabel() ) );
147#endif
148}
149
150void wxRadioButton::SetValue( bool val )
151{
152 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") );
153
154 if (val == GetValue())
155 return;
156
157 m_blockEvent = TRUE;
158
159 if (val)
160 {
161 gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widget), TRUE );
162 }
163 else
164 {
165 // should give an assert
166 // RL - No it shouldn't. A wxGenericValidator might try to set it
167 // as FALSE. Failing silently is probably TRTTD here.
168 }
169
170 m_blockEvent = FALSE;
171}
172
173bool wxRadioButton::GetValue() const
174{
175 wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobutton") );
176
177 return GTK_TOGGLE_BUTTON(m_widget)->active;
178}
179
180bool wxRadioButton::Enable( bool enable )
181{
182 if ( !wxControl::Enable( enable ) )
183 return FALSE;
184
185 gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable );
186
187 return TRUE;
188}
189
190void wxRadioButton::DoApplyWidgetStyle(GtkRcStyle *style)
191{
192 gtk_widget_modify_style(m_widget, style);
193 gtk_widget_modify_style(BUTTON_CHILD(m_widget), style);
194}
195
196bool wxRadioButton::IsOwnGtkWindow( GdkWindow *window )
197{
198 return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
199}
200
201void wxRadioButton::OnInternalIdle()
202{
203 wxCursor cursor = m_cursor;
204 if (g_globalCursor.Ok()) cursor = g_globalCursor;
205
206 GdkWindow *win = TOGGLE_BUTTON_EVENT_WIN(m_widget);
207 if ( win && cursor.Ok())
208 {
209 /* I now set the cursor the anew in every OnInternalIdle call
210 as setting the cursor in a parent window also effects the
211 windows above so that checking for the current cursor is
212 not possible. */
213
214 gdk_window_set_cursor( win, cursor.GetCursor() );
215 }
216
217 if (g_delayedFocus == this)
218 {
219 if (GTK_WIDGET_REALIZED(m_widget))
220 {
221 gtk_widget_grab_focus( m_widget );
222 g_delayedFocus = NULL;
223 }
224 }
225
226 if (wxUpdateUIEvent::CanUpdate(this))
227 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
228}
229
230wxSize wxRadioButton::DoGetBestSize() const
231{
232 return wxControl::DoGetBestSize();
233}
234
235// static
236wxVisualAttributes
237wxRadioButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
238{
239 wxVisualAttributes attr;
240 GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
241 attr = GetDefaultAttributesFromGTKWidget(widget);
242 gtk_widget_destroy(widget);
243 return attr;
244}
245
246
247#endif