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 *WXUNUSED(widget),
  40                                           wxCheckBox *cb)
  41 {
  42     if (g_isIdle) wxapp_install_idle_handler();
  43
  44     if (!cb->m_hasVMT) return;
  45
  46     if (g_blockEventsOnDrag) return;
  47
  48     if (cb->m_blockEvent) return;
  49
  50     wxCommandEvent event(wxEVT_CHECKBOX, cb->GetId());
  51     event.SetInt(cb->GetValue());
  52     event.SetEventObject(cb);
  53     cb->HandleWindowEvent(event);
  54 }
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // wxCheckBox
  59 //-----------------------------------------------------------------------------
  60
  61 wxCheckBox::wxCheckBox()
  62 {
  63 }
  64
  65 bool wxCheckBox::Create(wxWindow *parent,
  66                         wxWindowID id,
  67                         const wxString &label,
  68                         const wxPoint &pos,
  69                         const wxSize &size,
  70                         long style,
  71                         const wxValidator& validator,
  72                         const wxString &name )
  73 {
  74     m_needParent = true;
  75     m_acceptsFocus = true;
  76     m_blockEvent = false;
  77
  78     WXValidateStyle(&style);
  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     if ( style & wxALIGN_RIGHT )
  87     {
  88         // VZ: as I don't know a way to create a right aligned checkbox with
  89         //     GTK we will create a checkbox without label and a label at the
  90         //     left of it
  91         m_widgetCheckbox = gtk_check_button_new();
  92
  93         m_widgetLabel = gtk_label_new("");
  94         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
  95
  96         m_widget = gtk_hbox_new(FALSE, 0);
  97         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
  98         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
  99
 100         gtk_widget_show( m_widgetLabel );
 101         gtk_widget_show( m_widgetCheckbox );
 102     }
 103     else
 104     {
 105         m_widgetCheckbox = gtk_check_button_new_with_label("");
 106         m_widgetLabel = BUTTON_CHILD( m_widgetCheckbox );
 107         m_widget = m_widgetCheckbox;
 108     }
 109     SetLabel( label );
 110
 111     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 112                         "toggled",
 113                         GTK_SIGNAL_FUNC(gtk_checkbox_toggled_callback),
 114                         (gpointer *)this );
 115
 116     m_parent->DoAddChild( this );
 117
 118     PostCreation(size);
 119
 120     return true;
 121 }
 122
 123 void wxCheckBox::SetValue( bool state )
 124 {
 125     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 126
 127     if (state == GetValue())
 128         return;
 129
 130     m_blockEvent = true;
 131
 132     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 133
 134     m_blockEvent = false;
 135 }
 136
 137 bool wxCheckBox::GetValue() const
 138 {
 139     wxCHECK_MSG( m_widgetCheckbox != NULL, false, wxT("invalid checkbox") );
 140
 141     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 142 }
 143
 144 void wxCheckBox::SetLabel( const wxString& label )
 145 {
 146     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 147
 148     GTKSetLabelForLabel(GTK_LABEL(m_widgetLabel), label);
 149 }
 150
 151 bool wxCheckBox::Enable( bool enable )
 152 {
 153     if ( !wxControl::Enable( enable ) )
 154         return false;
 155
 156     gtk_widget_set_sensitive( m_widgetLabel, enable );
 157
 158     return true;
 159 }
 160
 161 void wxCheckBox::DoApplyWidgetStyle(GtkRcStyle *style)
 162 {
 163     gtk_widget_modify_style(m_widgetCheckbox, style);
 164     gtk_widget_modify_style(m_widgetLabel, style);
 165 }
 166
 167 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 168 {
 169     return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
 170 }
 171
 172 void wxCheckBox::OnInternalIdle()
 173 {
 174     wxCursor cursor = m_cursor;
 175     if (g_globalCursor.IsOk()) cursor = g_globalCursor;
 176
 177     GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
 178     if ( event_window && cursor.IsOk() )
 179     {
 180         /* I now set the cursor the anew in every OnInternalIdle call
 181            as setting the cursor in a parent window also effects the
 182            windows above so that checking for the current cursor is
 183            not possible. */
 184
 185        gdk_window_set_cursor( event_window, cursor.GetCursor() );
 186     }
 187
 188     if (g_delayedFocus == this)
 189     {
 190         if (GTK_WIDGET_REALIZED(m_widget))
 191         {
 192             gtk_widget_grab_focus( m_widget );
 193             g_delayedFocus = NULL;
 194         }
 195     }
 196
 197     if (wxUpdateUIEvent::CanUpdate(this))
 198         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 199 }
 200
 201 wxSize wxCheckBox::DoGetBestSize() const
 202 {
 203     return wxControl::DoGetBestSize();
 204 }
 205
 206 // static
 207 wxVisualAttributes
 208 wxCheckBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 209 {
 210     return GetDefaultAttributesFromGTKWidget(gtk_check_button_new);
 211 }
 212
 213 #endif