| 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 "wx/gtk/private.h" |
| 22 | |
| 23 | //----------------------------------------------------------------------------- |
| 24 | // idle system |
| 25 | //----------------------------------------------------------------------------- |
| 26 | |
| 27 | extern void wxapp_install_idle_handler(); |
| 28 | extern bool g_isIdle; |
| 29 | |
| 30 | //----------------------------------------------------------------------------- |
| 31 | // data |
| 32 | //----------------------------------------------------------------------------- |
| 33 | |
| 34 | extern bool g_blockEventsOnDrag; |
| 35 | extern wxCursor g_globalCursor; |
| 36 | extern wxWindowGTK *g_delayedFocus; |
| 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, |
| 68 | wxWindowID id, |
| 69 | const wxString& label, |
| 70 | const wxPoint& pos, |
| 71 | const wxSize& size, |
| 72 | long style, |
| 73 | const wxValidator& validator, |
| 74 | const wxString& name ) |
| 75 | { |
| 76 | m_acceptsFocus = TRUE; |
| 77 | m_needParent = TRUE; |
| 78 | |
| 79 | m_blockEvent = FALSE; |
| 80 | |
| 81 | if (!PreCreation( parent, pos, size ) || |
| 82 | !CreateBase( parent, id, pos, size, style, validator, name )) |
| 83 | { |
| 84 | wxFAIL_MSG( wxT("wxRadioButton creation failed") ); |
| 85 | return FALSE; |
| 86 | } |
| 87 | |
| 88 | if (HasFlag(wxRB_GROUP)) |
| 89 | { |
| 90 | // start a new group |
| 91 | m_radioButtonGroup = (GSList*) NULL; |
| 92 | } |
| 93 | else |
| 94 | { |
| 95 | // search backward for last group start |
| 96 | wxRadioButton *chief = (wxRadioButton*) NULL; |
| 97 | wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast(); |
| 98 | while (node) |
| 99 | { |
| 100 | wxWindow *child = node->GetData(); |
| 101 | if (child->IsRadioButton()) |
| 102 | { |
| 103 | chief = (wxRadioButton*) child; |
| 104 | if (child->HasFlag(wxRB_GROUP)) |
| 105 | break; |
| 106 | } |
| 107 | node = node->GetPrevious(); |
| 108 | } |
| 109 | if (chief) |
| 110 | { |
| 111 | // we are part of the group started by chief |
| 112 | m_radioButtonGroup = gtk_radio_button_group( GTK_RADIO_BUTTON(chief->m_widget) ); |
| 113 | } |
| 114 | else |
| 115 | { |
| 116 | // start a new group |
| 117 | m_radioButtonGroup = (GSList*) NULL; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | m_widget = gtk_radio_button_new_with_label( m_radioButtonGroup, wxGTK_CONV( label ) ); |
| 122 | |
| 123 | SetLabel(label); |
| 124 | |
| 125 | gtk_signal_connect( GTK_OBJECT(m_widget), "clicked", |
| 126 | GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this ); |
| 127 | |
| 128 | m_parent->DoAddChild( this ); |
| 129 | |
| 130 | PostCreation(); |
| 131 | |
| 132 | SetFont( parent->GetFont() ); |
| 133 | |
| 134 | wxSize size_best( DoGetBestSize() ); |
| 135 | wxSize new_size( size ); |
| 136 | if (new_size.x == -1) |
| 137 | new_size.x = size_best.x; |
| 138 | if (new_size.y == -1) |
| 139 | new_size.y = size_best.y; |
| 140 | if ((new_size.x != size.x) || (new_size.y != size.y)) |
| 141 | SetSize( new_size.x, new_size.y ); |
| 142 | |
| 143 | SetBackgroundColour( parent->GetBackgroundColour() ); |
| 144 | SetForegroundColour( parent->GetForegroundColour() ); |
| 145 | |
| 146 | Show( TRUE ); |
| 147 | |
| 148 | return TRUE; |
| 149 | } |
| 150 | |
| 151 | void wxRadioButton::SetLabel( const wxString& label ) |
| 152 | { |
| 153 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); |
| 154 | |
| 155 | wxControl::SetLabel( label ); |
| 156 | GtkLabel *g_label = GTK_LABEL( BUTTON_CHILD(m_widget) ); |
| 157 | #ifdef __WXGTK20__ |
| 158 | wxString label2 = PrepareLabelMnemonics( label ); |
| 159 | gtk_label_set_text_with_mnemonic( g_label, wxGTK_CONV( label2 ) ); |
| 160 | #else |
| 161 | gtk_label_set( g_label, wxGTK_CONV( GetLabel() ) ); |
| 162 | #endif |
| 163 | } |
| 164 | |
| 165 | void wxRadioButton::SetValue( bool val ) |
| 166 | { |
| 167 | wxCHECK_RET( m_widget != NULL, wxT("invalid radiobutton") ); |
| 168 | |
| 169 | if (val == GetValue()) |
| 170 | return; |
| 171 | |
| 172 | m_blockEvent = TRUE; |
| 173 | |
| 174 | if (val) |
| 175 | { |
| 176 | gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widget), TRUE ); |
| 177 | } |
| 178 | else |
| 179 | { |
| 180 | // should give an assert |
| 181 | // RL - No it shouldn't. A wxGenericValidator might try to set it |
| 182 | // as FALSE. Failing silently is probably TRTTD here. |
| 183 | } |
| 184 | |
| 185 | m_blockEvent = FALSE; |
| 186 | } |
| 187 | |
| 188 | bool wxRadioButton::GetValue() const |
| 189 | { |
| 190 | wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobutton") ); |
| 191 | |
| 192 | return GTK_TOGGLE_BUTTON(m_widget)->active; |
| 193 | } |
| 194 | |
| 195 | bool wxRadioButton::Enable( bool enable ) |
| 196 | { |
| 197 | if ( !wxControl::Enable( enable ) ) |
| 198 | return FALSE; |
| 199 | |
| 200 | gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable ); |
| 201 | |
| 202 | return TRUE; |
| 203 | } |
| 204 | |
| 205 | void wxRadioButton::ApplyWidgetStyle() |
| 206 | { |
| 207 | SetWidgetStyle(); |
| 208 | gtk_widget_set_style( m_widget, m_widgetStyle ); |
| 209 | gtk_widget_set_style( BUTTON_CHILD(m_widget), m_widgetStyle ); |
| 210 | } |
| 211 | |
| 212 | bool wxRadioButton::IsOwnGtkWindow( GdkWindow *window ) |
| 213 | { |
| 214 | return window == TOGGLE_BUTTON_EVENT_WIN(m_widget); |
| 215 | } |
| 216 | |
| 217 | void wxRadioButton::OnInternalIdle() |
| 218 | { |
| 219 | wxCursor cursor = m_cursor; |
| 220 | if (g_globalCursor.Ok()) cursor = g_globalCursor; |
| 221 | |
| 222 | GdkWindow *win = TOGGLE_BUTTON_EVENT_WIN(m_widget); |
| 223 | if ( win && cursor.Ok()) |
| 224 | { |
| 225 | /* I now set the cursor the anew in every OnInternalIdle call |
| 226 | as setting the cursor in a parent window also effects the |
| 227 | windows above so that checking for the current cursor is |
| 228 | not possible. */ |
| 229 | |
| 230 | gdk_window_set_cursor( win, cursor.GetCursor() ); |
| 231 | } |
| 232 | |
| 233 | if (g_delayedFocus == this) |
| 234 | { |
| 235 | if (GTK_WIDGET_REALIZED(m_widget)) |
| 236 | { |
| 237 | gtk_widget_grab_focus( m_widget ); |
| 238 | g_delayedFocus = NULL; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | if (wxUpdateUIEvent::CanUpdate(this)) |
| 243 | UpdateWindowUI(wxUPDATE_UI_FROMIDLE); |
| 244 | } |
| 245 | |
| 246 | wxSize wxRadioButton::DoGetBestSize() const |
| 247 | { |
| 248 | return wxControl::DoGetBestSize(); |
| 249 | } |
| 250 | |
| 251 | #endif |