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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 | extern wxCursor g_globalCursor; | |
35 | ||
36 | //----------------------------------------------------------------------------- | |
37 | // "clicked" | |
38 | //----------------------------------------------------------------------------- | |
39 | ||
40 | static | |
41 | void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioButton *rb ) | |
42 | { | |
43 | if (g_isIdle) wxapp_install_idle_handler(); | |
44 | ||
45 | if (!rb->m_hasVMT) return; | |
46 | ||
47 | if (g_blockEventsOnDrag) return; | |
48 | ||
49 | wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId()); | |
50 | event.SetInt( rb->GetValue() ); | |
51 | event.SetEventObject( rb ); | |
52 | rb->GetEventHandler()->ProcessEvent( event ); | |
53 | } | |
54 | ||
55 | //----------------------------------------------------------------------------- | |
56 | // wxRadioButton | |
57 | //----------------------------------------------------------------------------- | |
58 | ||
59 | IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl) | |
60 | ||
61 | bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label, | |
62 | const wxPoint& pos, const wxSize& size, long style, | |
63 | const wxValidator& validator, const wxString& name ) | |
64 | { | |
65 | m_acceptsFocus = TRUE; | |
66 | m_needParent = TRUE; | |
67 | m_isRadioButton = TRUE; | |
68 | ||
69 | if (!PreCreation( parent, pos, size ) || | |
70 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
71 | { | |
72 | wxFAIL_MSG( wxT("wxRadioButton creation failed") ); | |
73 | return FALSE; | |
74 | } | |
75 | ||
76 | if (HasFlag(wxRB_GROUP)) | |
77 | { | |
78 | /* start a new group */ | |
79 | m_radioButtonGroup = (GSList*) NULL; | |
80 | } | |
81 | else | |
82 | { | |
83 | /* search backward for last group start */ | |
84 | wxRadioButton *chief = (wxRadioButton*) NULL; | |
85 | wxWindowList::Node *node = parent->GetChildren().GetLast(); | |
86 | while (node) | |
87 | { | |
88 | wxWindow *child = node->GetData(); | |
89 | if (child->m_isRadioButton) | |
90 | { | |
91 | chief = (wxRadioButton*) child; | |
92 | if (child->HasFlag(wxRB_GROUP)) break; | |
93 | } | |
94 | node = node->GetPrevious(); | |
95 | } | |
96 | if (chief) | |
97 | { | |
98 | /* we are part of the group started by chief */ | |
99 | m_radioButtonGroup = gtk_radio_button_group( GTK_RADIO_BUTTON(chief->m_widget) ); | |
100 | } | |
101 | else | |
102 | { | |
103 | /* start a new group */ | |
104 | m_radioButtonGroup = (GSList*) NULL; | |
105 | } | |
106 | } | |
107 | ||
108 | m_widget = gtk_radio_button_new_with_label( m_radioButtonGroup, label.mbc_str() ); | |
109 | ||
110 | SetLabel(label); | |
111 | ||
112 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", | |
113 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
114 | ||
115 | m_parent->DoAddChild( this ); | |
116 | ||
117 | PostCreation(); | |
118 | ||
119 | SetFont( parent->GetFont() ); | |
120 | ||
121 | wxSize size_best( DoGetBestSize() ); | |
122 | wxSize new_size( size ); | |
123 | if (new_size.x == -1) | |
124 | new_size.x = size_best.x; | |
125 | if (new_size.y == -1) | |
126 | new_size.y = size_best.y; | |
127 | if ((new_size.x != size.x) || (new_size.y != size.y)) | |
128 | SetSize( new_size.x, new_size.y ); | |
129 | ||
130 | SetBackgroundColour( parent->GetBackgroundColour() ); | |
131 | SetForegroundColour( parent->GetForegroundColour() ); | |
132 | ||
133 | Show( TRUE ); | |
134 | ||
135 | return TRUE; | |
136 | } | |
137 | ||
138 | void wxRadioButton::SetLabel( const wxString& label ) | |
139 | { | |
140 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); | |
141 | ||
142 | wxControl::SetLabel( label ); | |
143 | GtkButton *bin = GTK_BUTTON( m_widget ); | |
144 | GtkLabel *g_label = GTK_LABEL( bin->child ); | |
145 | gtk_label_set( g_label, GetLabel().mbc_str() ); | |
146 | } | |
147 | ||
148 | void wxRadioButton::SetValue( bool val ) | |
149 | { | |
150 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); | |
151 | ||
152 | if (val == GetValue()) | |
153 | return; | |
154 | ||
155 | gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), | |
156 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
157 | ||
158 | if (val) | |
159 | { | |
160 | gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widget), TRUE ); | |
161 | } | |
162 | else | |
163 | { | |
164 | // should give an assert | |
165 | } | |
166 | ||
167 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", | |
168 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); | |
169 | } | |
170 | ||
171 | bool wxRadioButton::GetValue() const | |
172 | { | |
173 | wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobutton") ); | |
174 | ||
175 | return GTK_TOGGLE_BUTTON(m_widget)->active; | |
176 | } | |
177 | ||
178 | bool wxRadioButton::Enable( bool enable ) | |
179 | { | |
180 | if ( !wxControl::Enable( enable ) ) | |
181 | return FALSE; | |
182 | ||
183 | gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable ); | |
184 | ||
185 | return TRUE; | |
186 | } | |
187 | ||
188 | void wxRadioButton::ApplyWidgetStyle() | |
189 | { | |
190 | SetWidgetStyle(); | |
191 | gtk_widget_set_style( m_widget, m_widgetStyle ); | |
192 | gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle ); | |
193 | } | |
194 | ||
195 | bool wxRadioButton::IsOwnGtkWindow( GdkWindow *window ) | |
196 | { | |
197 | return (window == GTK_TOGGLE_BUTTON(m_widget)->event_window); | |
198 | } | |
199 | ||
200 | void wxRadioButton::OnInternalIdle() | |
201 | { | |
202 | wxCursor cursor = m_cursor; | |
203 | if (g_globalCursor.Ok()) cursor = g_globalCursor; | |
204 | ||
205 | if (GTK_TOGGLE_BUTTON(m_widget)->event_window && cursor.Ok()) | |
206 | { | |
207 | /* I now set the cursor the anew in every OnInternalIdle call | |
208 | as setting the cursor in a parent window also effects the | |
209 | windows above so that checking for the current cursor is | |
210 | not possible. */ | |
211 | ||
212 | gdk_window_set_cursor( GTK_TOGGLE_BUTTON(m_widget)->event_window, cursor.GetCursor() ); | |
213 | } | |
214 | ||
215 | UpdateWindowUI(); | |
216 | } | |
217 | ||
218 | wxSize wxRadioButton::DoGetBestSize() const | |
219 | { | |
220 | return wxControl::DoGetBestSize(); | |
221 | } | |
222 | ||
223 | #endif |