simplify Enable()
[wxWidgets.git] / src / gtk / radiobut.cpp
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 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #if wxUSE_RADIOBTN
14
15 #include "wx/radiobut.h"
16
17 #include "wx/gtk/private.h"
18
19 //-----------------------------------------------------------------------------
20 // data
21 //-----------------------------------------------------------------------------
22
23 extern bool g_blockEventsOnDrag;
24
25 //-----------------------------------------------------------------------------
26 // "clicked"
27 //-----------------------------------------------------------------------------
28
29 extern "C" {
30 static
31 void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioButton *rb )
32 {
33 if (!rb->m_hasVMT) return;
34
35 if (g_blockEventsOnDrag) return;
36
37 if (!button->active) return;
38
39 wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId());
40 event.SetInt( rb->GetValue() );
41 event.SetEventObject( rb );
42 rb->HandleWindowEvent( event );
43 }
44 }
45
46 //-----------------------------------------------------------------------------
47 // wxRadioButton
48 //-----------------------------------------------------------------------------
49
50 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl)
51
52 bool wxRadioButton::Create( wxWindow *parent,
53 wxWindowID id,
54 const wxString& label,
55 const wxPoint& pos,
56 const wxSize& size,
57 long style,
58 const wxValidator& validator,
59 const wxString& name )
60 {
61 if (!PreCreation( parent, pos, size ) ||
62 !CreateBase( parent, id, pos, size, style, validator, name ))
63 {
64 wxFAIL_MSG( wxT("wxRadioButton creation failed") );
65 return false;
66 }
67
68 GSList* radioButtonGroup = NULL;
69 if (!HasFlag(wxRB_GROUP) && !HasFlag(wxRB_SINGLE))
70 {
71 // search backward for last group start
72 wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
73 for (; node; node = node->GetPrevious())
74 {
75 wxWindow *child = node->GetData();
76 if (child->HasFlag(wxRB_GROUP) && wxIsKindOf(child, wxRadioButton))
77 {
78 radioButtonGroup = gtk_radio_button_get_group(
79 GTK_RADIO_BUTTON(child->m_widget));
80 break;
81 }
82 }
83 }
84
85 m_widget = gtk_radio_button_new_with_label( radioButtonGroup, wxGTK_CONV( label ) );
86 g_object_ref(m_widget);
87
88 SetLabel(label);
89
90 g_signal_connect_after (m_widget, "clicked",
91 G_CALLBACK (gtk_radiobutton_clicked_callback), this);
92
93 m_parent->DoAddChild( this );
94
95 PostCreation(size);
96
97 return true;
98 }
99
100 void wxRadioButton::SetLabel( const wxString& label )
101 {
102 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") );
103
104 GTKSetLabelForLabel(GTK_LABEL(GTK_BIN(m_widget)->child), label);
105 }
106
107 void wxRadioButton::SetValue( bool val )
108 {
109 wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") );
110
111 if (val == GetValue())
112 return;
113
114 g_signal_handlers_block_by_func(
115 m_widget, (void*)gtk_radiobutton_clicked_callback, this);
116
117 if (val)
118 {
119 gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widget), TRUE );
120 }
121 else
122 {
123 // should give an assert
124 // RL - No it shouldn't. A wxGenericValidator might try to set it
125 // as FALSE. Failing silently is probably TRTTD here.
126 }
127
128 g_signal_handlers_unblock_by_func(
129 m_widget, (void*)gtk_radiobutton_clicked_callback, this);
130 }
131
132 bool wxRadioButton::GetValue() const
133 {
134 wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobutton") );
135
136 return GTK_TOGGLE_BUTTON(m_widget)->active;
137 }
138
139 bool wxRadioButton::Enable( bool enable )
140 {
141 if (!base_type::Enable(enable))
142 return false;
143
144 gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
145
146 if (enable)
147 GTKFixSensitivity();
148
149 return true;
150 }
151
152 void wxRadioButton::DoApplyWidgetStyle(GtkRcStyle *style)
153 {
154 gtk_widget_modify_style(m_widget, style);
155 gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
156 }
157
158 GdkWindow *
159 wxRadioButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
160 {
161 return GTK_BUTTON(m_widget)->event_window;
162 }
163
164 // static
165 wxVisualAttributes
166 wxRadioButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
167 {
168 wxVisualAttributes attr;
169 // NB: we need toplevel window so that GTK+ can find the right style
170 GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
171 GtkWidget* widget = gtk_radio_button_new_with_label(NULL, "");
172 gtk_container_add(GTK_CONTAINER(wnd), widget);
173 attr = GetDefaultAttributesFromGTKWidget(widget);
174 gtk_widget_destroy(wnd);
175 return attr;
176 }
177
178
179 #endif