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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/radiobut.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Copyright: (c) 1998 Robert Roebling | |
6 | // Licence: wxWindows licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | // For compilers that support precompilation, includes "wx.h". | |
10 | #include "wx/wxprec.h" | |
11 | ||
12 | #if wxUSE_RADIOBTN | |
13 | ||
14 | #include "wx/radiobut.h" | |
15 | ||
16 | #include <gtk/gtk.h> | |
17 | #include "wx/gtk/private.h" | |
18 | #include "wx/gtk/private/gtk2-compat.h" | |
19 | ||
20 | //----------------------------------------------------------------------------- | |
21 | // data | |
22 | //----------------------------------------------------------------------------- | |
23 | ||
24 | extern bool g_blockEventsOnDrag; | |
25 | ||
26 | //----------------------------------------------------------------------------- | |
27 | // "clicked" | |
28 | //----------------------------------------------------------------------------- | |
29 | ||
30 | extern "C" { | |
31 | static | |
32 | void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioButton *rb ) | |
33 | { | |
34 | if (g_blockEventsOnDrag) return; | |
35 | ||
36 | if (!gtk_toggle_button_get_active(button)) return; | |
37 | ||
38 | wxCommandEvent event( wxEVT_RADIOBUTTON, rb->GetId()); | |
39 | event.SetInt( rb->GetValue() ); | |
40 | event.SetEventObject( rb ); | |
41 | rb->HandleWindowEvent( event ); | |
42 | } | |
43 | } | |
44 | ||
45 | //----------------------------------------------------------------------------- | |
46 | // wxRadioButton | |
47 | //----------------------------------------------------------------------------- | |
48 | ||
49 | bool wxRadioButton::Create( wxWindow *parent, | |
50 | wxWindowID id, | |
51 | const wxString& label, | |
52 | const wxPoint& pos, | |
53 | const wxSize& size, | |
54 | long style, | |
55 | const wxValidator& validator, | |
56 | const wxString& name ) | |
57 | { | |
58 | if (!PreCreation( parent, pos, size ) || | |
59 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
60 | { | |
61 | wxFAIL_MSG( wxT("wxRadioButton creation failed") ); | |
62 | return false; | |
63 | } | |
64 | ||
65 | // Check if this radio button should be put into an existing group. This | |
66 | // shouldn't be done if it's given a style to explicitly start a new group | |
67 | // or if it's not meant to be a part of a group at all. | |
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 | ||
77 | // We stop at the first previous radio button in any case as it | |
78 | // wouldn't make sense to put this button in a group with another | |
79 | // one if there is a radio button that is not part of the same | |
80 | // group between them. | |
81 | if (wxIsKindOf(child, wxRadioButton)) | |
82 | { | |
83 | // Any preceding radio button can be used to get its group, not | |
84 | // necessarily one with wxRB_GROUP style, but exclude | |
85 | // wxRB_SINGLE ones as their group should never be shared. | |
86 | if (!child->HasFlag(wxRB_SINGLE)) | |
87 | { | |
88 | radioButtonGroup = gtk_radio_button_get_group( | |
89 | GTK_RADIO_BUTTON(child->m_widget)); | |
90 | } | |
91 | ||
92 | break; | |
93 | } | |
94 | } | |
95 | } | |
96 | ||
97 | m_widget = gtk_radio_button_new_with_label( radioButtonGroup, wxGTK_CONV( label ) ); | |
98 | g_object_ref(m_widget); | |
99 | ||
100 | SetLabel(label); | |
101 | ||
102 | g_signal_connect_after (m_widget, "clicked", | |
103 | G_CALLBACK (gtk_radiobutton_clicked_callback), this); | |
104 | ||
105 | m_parent->DoAddChild( this ); | |
106 | ||
107 | PostCreation(size); | |
108 | ||
109 | return true; | |
110 | } | |
111 | ||
112 | void wxRadioButton::SetLabel( const wxString& label ) | |
113 | { | |
114 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); | |
115 | ||
116 | // save the original label | |
117 | wxControlBase::SetLabel(label); | |
118 | ||
119 | GTKSetLabelForLabel(GTK_LABEL(gtk_bin_get_child(GTK_BIN(m_widget))), label); | |
120 | } | |
121 | ||
122 | void wxRadioButton::SetValue( bool val ) | |
123 | { | |
124 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); | |
125 | ||
126 | if (val == GetValue()) | |
127 | return; | |
128 | ||
129 | g_signal_handlers_block_by_func( | |
130 | m_widget, (void*)gtk_radiobutton_clicked_callback, this); | |
131 | ||
132 | if (val) | |
133 | { | |
134 | gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widget), TRUE ); | |
135 | } | |
136 | else | |
137 | { | |
138 | // should give an assert | |
139 | // RL - No it shouldn't. A wxGenericValidator might try to set it | |
140 | // as FALSE. Failing silently is probably TRTTD here. | |
141 | } | |
142 | ||
143 | g_signal_handlers_unblock_by_func( | |
144 | m_widget, (void*)gtk_radiobutton_clicked_callback, this); | |
145 | } | |
146 | ||
147 | bool wxRadioButton::GetValue() const | |
148 | { | |
149 | wxCHECK_MSG( m_widget != NULL, false, wxT("invalid radiobutton") ); | |
150 | ||
151 | return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(m_widget)) != 0; | |
152 | } | |
153 | ||
154 | bool wxRadioButton::Enable( bool enable ) | |
155 | { | |
156 | if (!base_type::Enable(enable)) | |
157 | return false; | |
158 | ||
159 | gtk_widget_set_sensitive(gtk_bin_get_child(GTK_BIN(m_widget)), enable); | |
160 | ||
161 | if (enable) | |
162 | GTKFixSensitivity(); | |
163 | ||
164 | return true; | |
165 | } | |
166 | ||
167 | void wxRadioButton::DoApplyWidgetStyle(GtkRcStyle *style) | |
168 | { | |
169 | GTKApplyStyle(m_widget, style); | |
170 | GTKApplyStyle(gtk_bin_get_child(GTK_BIN(m_widget)), style); | |
171 | } | |
172 | ||
173 | GdkWindow * | |
174 | wxRadioButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const | |
175 | { | |
176 | return gtk_button_get_event_window(GTK_BUTTON(m_widget)); | |
177 | } | |
178 | ||
179 | // static | |
180 | wxVisualAttributes | |
181 | wxRadioButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) | |
182 | { | |
183 | return GetDefaultAttributesFromGTKWidget(gtk_radio_button_new_with_label(NULL, "")); | |
184 | } | |
185 | ||
186 | ||
187 | #endif |