src/gtk1/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/checkbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_CHECKBOX
  14
  15 #include "wx/checkbox.h"
  16
  17 #include "wx/gtk1/private.h"
  18
  19 //-----------------------------------------------------------------------------
  20 // idle system
  21 //-----------------------------------------------------------------------------
  22
  23 extern void wxapp_install_idle_handler();
  24 extern bool g_isIdle;
  25
  26 //-----------------------------------------------------------------------------
  27 // data
  28 //-----------------------------------------------------------------------------
  29
  30 extern bool           g_blockEventsOnDrag;
  31 extern wxCursor       g_globalCursor;
  32 extern wxWindowGTK   *g_delayedFocus;
  33
  34 //-----------------------------------------------------------------------------
  35 // "clicked"
  36 //-----------------------------------------------------------------------------
  37
  38 extern "C" {
  39 static void gtk_checkbox_toggled_callback(GtkWidget *widget, wxCheckBox *cb)
  40 {
  41     if (g_isIdle) wxapp_install_idle_handler();
  42
  43     if (!cb->m_hasVMT) return;
  44
  45     if (g_blockEventsOnDrag) return;
  46
  47     if (cb->m_blockEvent) return;
  48
  49     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  50     event.SetInt(cb->GetValue());
  51     event.SetEventObject(cb);
  52     cb->GetEventHandler()->ProcessEvent(event);
  53 }
  54 }
  55
  56 //-----------------------------------------------------------------------------
  57 // wxCheckBox
  58 //-----------------------------------------------------------------------------
  59
  60 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  61
  62 wxCheckBox::wxCheckBox()
  63 {
  64 }
  65
  66 bool wxCheckBox::Create(wxWindow *parent,
  67                         wxWindowID id,
  68                         const wxString &label,
  69                         const wxPoint &pos,
  70                         const wxSize &size,
  71                         long style,
  72                         const wxValidator& validator,
  73                         const wxString &name )
  74 {
  75     m_needParent = true;
  76     m_acceptsFocus = true;
  77     m_blockEvent = false;
  78
  79     if (!PreCreation( parent, pos, size ) ||
  80         !CreateBase( parent, id, pos, size, style, validator, name ))
  81     {
  82         wxFAIL_MSG( wxT("wxCheckBox creation failed") );
  83         return false;
  84     }
  85
  86     wxASSERT_MSG( (style & wxCHK_ALLOW_3RD_STATE_FOR_USER) == 0 ||
  87                   (style & wxCHK_3STATE) != 0,
  88                   wxT("Using wxCHK_ALLOW_3RD_STATE_FOR_USER")
  89                   wxT(" style flag for a 2-state checkbox is useless") );
  90
  91     if ( style & wxALIGN_RIGHT )
  92     {
  93         // VZ: as I don't know a way to create a right aligned checkbox with
  94         //     GTK we will create a checkbox without label and a label at the
  95         //     left of it
  96         m_widgetCheckbox = gtk_check_button_new();
  97
  98         m_widgetLabel = gtk_label_new("");
  99         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
 100
 101         m_widget = gtk_hbox_new(FALSE, 0);
 102         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
 103         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
 104
 105         gtk_widget_show( m_widgetLabel );
 106         gtk_widget_show( m_widgetCheckbox );
 107     }
 108     else
 109     {
 110         m_widgetCheckbox = gtk_check_button_new_with_label("");
 111         m_widgetLabel = BUTTON_CHILD( m_widgetCheckbox );
 112         m_widget = m_widgetCheckbox;
 113     }
 114     SetLabel( label );
 115
 116     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 117                         "toggled",
 118                         GTK_SIGNAL_FUNC(gtk_checkbox_toggled_callback),
 119                         (gpointer *)this );
 120
 121     m_parent->DoAddChild( this );
 122
 123     PostCreation(size);
 124
 125     return true;
 126 }
 127
 128 void wxCheckBox::SetValue( bool state )
 129 {
 130     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 131
 132     if (state == GetValue())
 133         return;
 134
 135     m_blockEvent = true;
 136
 137     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 138
 139     m_blockEvent = false;
 140 }
 141
 142 bool wxCheckBox::GetValue() const
 143 {
 144     wxCHECK_MSG( m_widgetCheckbox != NULL, false, wxT("invalid checkbox") );
 145
 146     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 147 }
 148
 149 void wxCheckBox::SetLabel( const wxString& label )
 150 {
 151     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 152
 153     GTKSetLabelForLabel(GTK_LABEL(m_widgetLabel), label);
 154 }
 155
 156 bool wxCheckBox::Enable( bool enable )
 157 {
 158     if ( !wxControl::Enable( enable ) )
 159         return false;
 160
 161     gtk_widget_set_sensitive( m_widgetLabel, enable );
 162
 163     return true;
 164 }
 165
 166 void wxCheckBox::DoApplyWidgetStyle(GtkRcStyle *style)
 167 {
 168     gtk_widget_modify_style(m_widgetCheckbox, style);
 169     gtk_widget_modify_style(m_widgetLabel, style);
 170 }
 171
 172 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 173 {
 174     return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
 175 }
 176
 177 void wxCheckBox::OnInternalIdle()
 178 {
 179     wxCursor cursor = m_cursor;
 180     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 181
 182     GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
 183     if ( event_window && cursor.Ok() )
 184     {
 185         /* I now set the cursor the anew in every OnInternalIdle call
 186            as setting the cursor in a parent window also effects the
 187            windows above so that checking for the current cursor is
 188            not possible. */
 189
 190        gdk_window_set_cursor( event_window, cursor.GetCursor() );
 191     }
 192
 193     if (g_delayedFocus == this)
 194     {
 195         if (GTK_WIDGET_REALIZED(m_widget))
 196         {
 197             gtk_widget_grab_focus( m_widget );
 198             g_delayedFocus = NULL;
 199         }
 200     }
 201
 202     if (wxUpdateUIEvent::CanUpdate(this))
 203         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 204 }
 205
 206 wxSize wxCheckBox::DoGetBestSize() const
 207 {
 208     return wxControl::DoGetBestSize();
 209 }
 210
 211 // static
 212 wxVisualAttributes
 213 wxCheckBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 214 {
 215     return GetDefaultAttributesFromGTKWidget(gtk_check_button_new);
 216 }
 217
 218 #endif