src/gtk/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        checkbox.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 "checkbox.h"
  13 #endif
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_CHECKBOX
  18
  19 #include "wx/checkbox.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 void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
  43 {
  44     if (g_isIdle) wxapp_install_idle_handler();
  45
  46     if (!cb->m_hasVMT) return;
  47
  48     if (g_blockEventsOnDrag) return;
  49
  50     if (cb->m_blockEvent) return;
  51
  52     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  53     event.SetInt( cb->GetValue() );
  54     event.SetEventObject(cb);
  55     cb->GetEventHandler()->ProcessEvent(event);
  56 }
  57
  58 //-----------------------------------------------------------------------------
  59 // wxCheckBox
  60 //-----------------------------------------------------------------------------
  61
  62 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  63
  64 wxCheckBox::wxCheckBox()
  65 {
  66 }
  67
  68 bool wxCheckBox::Create(wxWindow *parent,
  69                         wxWindowID id,
  70                         const wxString &label,
  71                         const wxPoint &pos,
  72                         const wxSize &size,
  73                         long style,
  74                         const wxValidator& validator,
  75                         const wxString &name )
  76 {
  77     m_needParent = TRUE;
  78     m_acceptsFocus = TRUE;
  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("wxCheckBox creation failed") );
  85         return FALSE;
  86     }
  87
  88     if ( style & wxALIGN_RIGHT )
  89     {
  90         // VZ: as I don't know a way to create a right aligned checkbox with
  91         //     GTK we will create a checkbox without label and a label at the
  92         //     left of it
  93         m_widgetCheckbox = gtk_check_button_new();
  94
  95         m_widgetLabel = gtk_label_new("");
  96         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
  97
  98         m_widget = gtk_hbox_new(FALSE, 0);
  99         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
 100         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
 101
 102         gtk_widget_show( m_widgetLabel );
 103         gtk_widget_show( m_widgetCheckbox );
 104     }
 105     else
 106     {
 107         m_widgetCheckbox = gtk_check_button_new_with_label("");
 108         m_widgetLabel = BUTTON_CHILD( m_widgetCheckbox );
 109         m_widget = m_widgetCheckbox;
 110     }
 111     SetLabel( label );
 112
 113     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 114                         "clicked",
 115                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 116                         (gpointer *)this );
 117
 118     m_parent->DoAddChild( this );
 119
 120     PostCreation();
 121
 122     SetFont( parent->GetFont() );
 123
 124     wxSize size_best( DoGetBestSize() );
 125     wxSize new_size( size );
 126     if (new_size.x == -1)
 127         new_size.x = size_best.x;
 128     if (new_size.y == -1)
 129         new_size.y = size_best.y;
 130     if ((new_size.x != size.x) || (new_size.y != size.y))
 131         SetSize( new_size.x, new_size.y );
 132
 133     SetBackgroundColour( parent->GetBackgroundColour() );
 134     SetForegroundColour( parent->GetForegroundColour() );
 135
 136     Show( TRUE );
 137
 138     return TRUE;
 139 }
 140
 141 void wxCheckBox::SetValue( bool state )
 142 {
 143     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 144
 145     if (state == GetValue())
 146         return;
 147
 148     m_blockEvent = TRUE;
 149
 150     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 151
 152     m_blockEvent = FALSE;
 153 }
 154
 155 bool wxCheckBox::GetValue() const
 156 {
 157     wxCHECK_MSG( m_widgetCheckbox != NULL, FALSE, wxT("invalid checkbox") );
 158
 159     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 160 }
 161
 162 void wxCheckBox::SetLabel( const wxString& label )
 163 {
 164     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 165
 166     wxControl::SetLabel( label );
 167
 168 #ifdef __WXGTK20__
 169     wxString label2 = PrepareLabelMnemonics( label );
 170     gtk_label_set_text_with_mnemonic( GTK_LABEL(m_widgetLabel), wxGTK_CONV( label2 ) );
 171 #else
 172     gtk_label_set( GTK_LABEL(m_widgetLabel), wxGTK_CONV( GetLabel() ) );
 173 #endif
 174 }
 175
 176 bool wxCheckBox::Enable( bool enable )
 177 {
 178     if ( !wxControl::Enable( enable ) )
 179         return FALSE;
 180
 181     gtk_widget_set_sensitive( m_widgetLabel, enable );
 182
 183     return TRUE;
 184 }
 185
 186 void wxCheckBox::ApplyWidgetStyle()
 187 {
 188     SetWidgetStyle();
 189     gtk_widget_set_style( m_widgetCheckbox, m_widgetStyle );
 190     gtk_widget_set_style( m_widgetLabel, m_widgetStyle );
 191 }
 192
 193 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 194 {
 195     return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
 196 }
 197
 198 void wxCheckBox::OnInternalIdle()
 199 {
 200     wxCursor cursor = m_cursor;
 201     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 202
 203     GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
 204     if ( event_window && cursor.Ok() )
 205     {
 206         /* I now set the cursor the anew in every OnInternalIdle call
 207            as setting the cursor in a parent window also effects the
 208            windows above so that checking for the current cursor is
 209            not possible. */
 210
 211        gdk_window_set_cursor( event_window, cursor.GetCursor() );
 212     }
 213
 214     if (g_delayedFocus == this)
 215     {
 216         if (GTK_WIDGET_REALIZED(m_widget))
 217         {
 218             gtk_widget_grab_focus( m_widget );
 219             g_delayedFocus = NULL;
 220         }
 221     }
 222
 223     if (wxUpdateUIEvent::CanUpdate())
 224         UpdateWindowUI();
 225 }
 226
 227 wxSize wxCheckBox::DoGetBestSize() const
 228 {
 229     return wxControl::DoGetBestSize();
 230 }
 231
 232 #endif