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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 | #ifdef __GNUG__ | |
12 | #pragma implementation "radiobut.h" | |
13 | #endif | |
14 | ||
15 | #include "wx/radiobut.h" | |
16 | ||
17 | #if wxUSE_RADIOBOX | |
18 | ||
19 | #include "gdk/gdk.h" | |
20 | #include "gtk/gtk.h" | |
21 | ||
22 | //----------------------------------------------------------------------------- | |
23 | // idle system | |
24 | //----------------------------------------------------------------------------- | |
25 | ||
26 | extern void wxapp_install_idle_handler(); | |
27 | extern bool g_isIdle; | |
28 | ||
29 | //----------------------------------------------------------------------------- | |
30 | // data | |
31 | //----------------------------------------------------------------------------- | |
32 | ||
33 | extern bool g_blockEventsOnDrag; | |
34 | ||
35 | //----------------------------------------------------------------------------- | |
36 | // "clicked" | |
37 | //----------------------------------------------------------------------------- | |
38 | ||
39 | static | |
40 | void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb ) | |
41 | { | |
42 | if (g_isIdle) wxapp_install_idle_handler(); | |
43 | ||
44 | if (!rb->m_hasVMT) return; | |
45 | ||
46 | if (g_blockEventsOnDrag) return; | |
47 | ||
48 | wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId()); | |
49 | event.SetInt( rb->GetValue() ); | |
50 | event.SetEventObject( rb ); | |
51 | rb->GetEventHandler()->ProcessEvent( event ); | |
52 | } | |
53 | ||
54 | //----------------------------------------------------------------------------- | |
55 | // wxRadioButton | |
56 | //----------------------------------------------------------------------------- | |
57 | ||
58 | IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl) | |
59 | ||
60 | bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label, | |
61 | const wxPoint& pos, const wxSize& size, long style, | |
62 | const wxValidator& validator, const wxString& name ) | |
63 | { | |
64 | m_acceptsFocus = TRUE; | |
65 | m_needParent = TRUE; | |
66 | m_isRadioButton = TRUE; | |
67 | ||
68 | if (!PreCreation( parent, pos, size ) || | |
69 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
70 | { | |
71 | wxFAIL_MSG( _T("wxRadioButton creation failed") ); | |
72 | return FALSE; | |
73 | } | |
74 | ||
75 | if (HasFlag(wxRB_GROUP)) | |
76 | { | |
77 | /* start a new group */ | |
78 | m_radioButtonGroup = (GSList*) NULL; | |
79 | } | |
80 | else | |
81 | { | |
82 | /* search backward for last group start */ | |
83 | wxRadioButton *chief = (wxRadioButton*) NULL; | |
84 | wxWindowList::Node *node = parent->GetChildren().GetLast(); | |
85 | while (node) | |
86 | { | |
87 | wxWindow *child = node->GetData(); | |
88 | if (child->m_isRadioButton) | |
89 | { | |
90 | chief = (wxRadioButton*) child; | |
91 | if (child->HasFlag(wxRB_GROUP)) break; | |
92 | } | |
93 | node = node->GetPrevious(); | |
94 | } | |
95 | if (chief) | |
96 | { | |
97 | /* we are part of the group started by chief */ | |
98 | m_radioButtonGroup = gtk_radio_button_group( GTK_RADIO_BUTTON(chief->m_widget) ); | |
99 | } | |
100 | else | |
101 | { | |
102 | /* start a new group */ | |
103 | m_radioButtonGroup = (GSList*) NULL; | |
104 | } | |
105 | } | |
106 | ||
107 | m_widget = gtk_radio_button_new_with_label( m_radioButtonGroup, label.mbc_str() ); | |
108 | ||
109 | SetLabel(label); | |
110 | ||
111 | wxSize newSize = size; | |
112 | if (newSize.x == -1) newSize.x = 22+gdk_string_measure( m_widget->style->font, label.mbc_str() ); | |
113 | if (newSize.y == -1) newSize.y = 26; | |
114 | SetSize( newSize.x, newSize.y ); | |
115 | ||
116 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", | |
117 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
118 | ||
119 | m_parent->DoAddChild( this ); | |
120 | ||
121 | PostCreation(); | |
122 | ||
123 | SetBackgroundColour( parent->GetBackgroundColour() ); | |
124 | SetForegroundColour( parent->GetForegroundColour() ); | |
125 | SetFont( parent->GetFont() ); | |
126 | ||
127 | Show( TRUE ); | |
128 | ||
129 | return TRUE; | |
130 | } | |
131 | ||
132 | void wxRadioButton::SetLabel( const wxString& label ) | |
133 | { | |
134 | wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") ); | |
135 | ||
136 | wxControl::SetLabel( label ); | |
137 | GtkButton *bin = GTK_BUTTON( m_widget ); | |
138 | GtkLabel *g_label = GTK_LABEL( bin->child ); | |
139 | gtk_label_set( g_label, GetLabel().mbc_str() ); | |
140 | } | |
141 | ||
142 | void wxRadioButton::SetValue( bool val ) | |
143 | { | |
144 | wxCHECK_RET( m_widget != NULL, _T("invalid radiobutton") ); | |
145 | ||
146 | if (val == GetValue()) | |
147 | return; | |
148 | ||
149 | gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), | |
150 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
151 | ||
152 | if (val) | |
153 | { | |
154 | gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE ); | |
155 | } | |
156 | else | |
157 | { | |
158 | // should give an assert | |
159 | } | |
160 | ||
161 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", | |
162 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
163 | } | |
164 | ||
165 | bool wxRadioButton::GetValue() const | |
166 | { | |
167 | wxCHECK_MSG( m_widget != NULL, FALSE, _T("invalid radiobutton") ); | |
168 | ||
169 | return GTK_TOGGLE_BUTTON(m_widget)->active; | |
170 | } | |
171 | ||
172 | bool wxRadioButton::Enable( bool enable ) | |
173 | { | |
174 | if ( !wxControl::Enable( enable ) ) | |
175 | return FALSE; | |
176 | ||
177 | gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable ); | |
178 | ||
179 | return TRUE; | |
180 | } | |
181 | ||
182 | void wxRadioButton::ApplyWidgetStyle() | |
183 | { | |
184 | SetWidgetStyle(); | |
185 | gtk_widget_set_style( m_widget, m_widgetStyle ); | |
186 | gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle ); | |
187 | } | |
188 | ||
189 | #endif |