| 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/defs.h" |
| 16 | |
| 17 | #if wxUSE_RADIOBOX |
| 18 | |
| 19 | #include "wx/radiobut.h" |
| 20 | |
| 21 | #include <gdk/gdk.h> |
| 22 | #include <gtk/gtk.h> |
| 23 | |
| 24 | //----------------------------------------------------------------------------- |
| 25 | // idle system |
| 26 | //----------------------------------------------------------------------------- |
| 27 | |
| 28 | extern void wxapp_install_idle_handler(); |
| 29 | extern bool g_isIdle; |
| 30 | |
| 31 | //----------------------------------------------------------------------------- |
| 32 | // data |
| 33 | //----------------------------------------------------------------------------- |
| 34 | |
| 35 | extern bool g_blockEventsOnDrag; |
| 36 | extern wxCursor g_globalCursor; |
| 37 | |
| 38 | //----------------------------------------------------------------------------- |
| 39 | // "clicked" |
| 40 | //----------------------------------------------------------------------------- |
| 41 | |
| 42 | static |
| 43 | void gtk_radiobutton_clicked_callback( GtkToggleButton *button, wxRadioButton *rb ) |
| 44 | { |
| 45 | if (g_isIdle) wxapp_install_idle_handler(); |
| 46 | |
| 47 | if (!rb->m_hasVMT) return; |
| 48 | |
| 49 | if (g_blockEventsOnDrag) return; |
| 50 | |
| 51 | if (!button->active) return; |
| 52 | |
| 53 | if (rb->m_blockEvent) return; |
| 54 | |
| 55 | wxCommandEvent event( wxEVT_COMMAND_RADIOBUTTON_SELECTED, rb->GetId()); |
| 56 | event.SetInt( rb->GetValue() ); |
| 57 | event.SetEventObject( rb ); |
| 58 | rb->GetEventHandler()->ProcessEvent( event ); |
| 59 | } |
| 60 | |
| 61 | //----------------------------------------------------------------------------- |
| 62 | // wxRadioButton |
| 63 | //----------------------------------------------------------------------------- |
| 64 | |
| 65 | IMPLEMENT_DYNAMIC_CLASS(wxRadioButton,wxControl) |
| 66 | |
| 67 | bool wxRadioButton::Create( wxWindow *parent, wxWindowID id, const wxString& label, |
| 68 | const wxPoint& pos, const wxSize& size, long style, |
| 69 | const wxValidator& validator, const wxString& name ) |
| 70 | { |
| 71 | m_acceptsFocus = TRUE; |
| 72 | m_needParent = TRUE; |
| 73 | m_isRadioButton = TRUE; |
| 74 | |
| 75 | m_blockEvent = FALSE; |
| 76 | |
| 77 | if (!PreCreation( parent, pos, size ) || |
| 78 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 79 | { |
| 80 | wxFAIL_MSG( wxT("wxRadioButton creation failed") ); |
| 81 | return FALSE; |
| 82 | } |
| 83 | |
| 84 | if (HasFlag(wxRB_GROUP)) |
| 85 | { |
| 86 | // start a new group |
| 87 | m_radioButtonGroup = (GSList*) NULL; |
| 88 | } |
| 89 | else |
| 90 | { |
| 91 | // search backward for last group start |
| 92 | wxRadioButton *chief = (wxRadioButton*) NULL; |
| 93 | wxWindowList::Node *node = parent->GetChildren().GetLast(); |
| 94 | while (node) |
| 95 | { |
| 96 | wxWindow *child = node->GetData(); |
| 97 | if (child->m_isRadioButton) |
| 98 | { |
| 99 | chief = (wxRadioButton*) child; |
| 100 | if (child->HasFlag(wxRB_GROUP)) break; |
| 101 | } |
| 102 | node = node->GetPrevious(); |
| 103 | } |
| 104 | if (chief) |
| 105 | { |
| 106 | // we are part of the group started by chief |
| 107 | m_radioButtonGroup = gtk_radio_button_group( GTK_RADIO_BUTTON(chief->m_widget) ); |
| 108 | } |
| 109 | else |
| 110 | { |
| 111 | // start a new group |
| 112 | m_radioButtonGroup = (GSList*) NULL; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | m_widget = gtk_radio_button_new_with_label( m_radioButtonGroup, label.mbc_str() ); |
| 117 | |
| 118 | SetLabel(label); |
| 119 | |
| 120 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", |
| 121 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); |
| 122 | |
| 123 | m_parent->DoAddChild( this ); |
| 124 | |
| 125 | PostCreation(); |
| 126 | |
| 127 | SetFont( parent->GetFont() ); |
| 128 | |
| 129 | wxSize size_best( DoGetBestSize() ); |
| 130 | wxSize new_size( size ); |
| 131 | if (new_size.x == -1) |
| 132 | new_size.x = size_best.x; |
| 133 | if (new_size.y == -1) |
| 134 | new_size.y = size_best.y; |
| 135 | if ((new_size.x != size.x) || (new_size.y != size.y)) |
| 136 | SetSize( new_size.x, new_size.y ); |
| 137 | |
| 138 | SetBackgroundColour( parent->GetBackgroundColour() ); |
| 139 | SetForegroundColour( parent->GetForegroundColour() ); |
| 140 | |
| 141 | Show( TRUE ); |
| 142 | |
| 143 | return TRUE; |
| 144 | } |
| 145 | |
| 146 | void wxRadioButton::SetLabel( const wxString& label ) |
| 147 | { |
| 148 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); |
| 149 | |
| 150 | wxControl::SetLabel( label ); |
| 151 | GtkButton *bin = GTK_BUTTON( m_widget ); |
| 152 | GtkLabel *g_label = GTK_LABEL( bin->child ); |
| 153 | gtk_label_set( g_label, GetLabel().mbc_str() ); |
| 154 | } |
| 155 | |
| 156 | void wxRadioButton::SetValue( bool val ) |
| 157 | { |
| 158 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); |
| 159 | |
| 160 | if (val == GetValue()) |
| 161 | return; |
| 162 | |
| 163 | m_blockEvent = TRUE; |
| 164 | |
| 165 | if (val) |
| 166 | { |
| 167 | gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widget), TRUE ); |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | // should give an assert |
| 172 | // RL - No it shouldn't. A wxGenericValidator might try to set it |
| 173 | // as FALSE. Failing silently is probably TRTTD here. |
| 174 | } |
| 175 | |
| 176 | m_blockEvent = FALSE; |
| 177 | } |
| 178 | |
| 179 | bool wxRadioButton::GetValue() const |
| 180 | { |
| 181 | wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobutton") ); |
| 182 | |
| 183 | return GTK_TOGGLE_BUTTON(m_widget)->active; |
| 184 | } |
| 185 | |
| 186 | bool wxRadioButton::Enable( bool enable ) |
| 187 | { |
| 188 | if ( !wxControl::Enable( enable ) ) |
| 189 | return FALSE; |
| 190 | |
| 191 | gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable ); |
| 192 | |
| 193 | return TRUE; |
| 194 | } |
| 195 | |
| 196 | void wxRadioButton::ApplyWidgetStyle() |
| 197 | { |
| 198 | SetWidgetStyle(); |
| 199 | gtk_widget_set_style( m_widget, m_widgetStyle ); |
| 200 | gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle ); |
| 201 | } |
| 202 | |
| 203 | bool wxRadioButton::IsOwnGtkWindow( GdkWindow *window ) |
| 204 | { |
| 205 | return (window == GTK_TOGGLE_BUTTON(m_widget)->event_window); |
| 206 | } |
| 207 | |
| 208 | void wxRadioButton::OnInternalIdle() |
| 209 | { |
| 210 | wxCursor cursor = m_cursor; |
| 211 | if (g_globalCursor.Ok()) cursor = g_globalCursor; |
| 212 | |
| 213 | if (GTK_TOGGLE_BUTTON(m_widget)->event_window && cursor.Ok()) |
| 214 | { |
| 215 | /* I now set the cursor the anew in every OnInternalIdle call |
| 216 | as setting the cursor in a parent window also effects the |
| 217 | windows above so that checking for the current cursor is |
| 218 | not possible. */ |
| 219 | |
| 220 | gdk_window_set_cursor( GTK_TOGGLE_BUTTON(m_widget)->event_window, cursor.GetCursor() ); |
| 221 | } |
| 222 | |
| 223 | UpdateWindowUI(); |
| 224 | } |
| 225 | |
| 226 | wxSize wxRadioButton::DoGetBestSize() const |
| 227 | { |
| 228 | return wxControl::DoGetBestSize(); |
| 229 | } |
| 230 | |
| 231 | #endif |