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_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  51     event.SetInt(cb->GetValue());
  52     event.SetEventObject(cb);
  53     cb->HandleWindowEvent(event);
  54 }
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // wxCheckBox
  59 //-----------------------------------------------------------------------------
  60
  61 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  62
  63 wxCheckBox::wxCheckBox()
  64 {
  65 }
  66
  67 bool wxCheckBox::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_needParent = true;
  77     m_acceptsFocus = true;
  78     m_blockEvent = false;
  79
  80     if (!PreCreation( parent, pos, size ) ||
  81         !CreateBase( parent, id, pos, size, style, validator, name ))
  82     {
  83         wxFAIL_MSG( wxT("wxCheckBox creation failed") );
  84         return false;
  85     }
  86
  87     wxASSERT_MSG( (style & wxCHK_ALLOW_3RD_STATE_FOR_USER) == 0 ||
  88                   (style & wxCHK_3STATE) != 0,
  89                   wxT("Using wxCHK_ALLOW_3RD_STATE_FOR_USER")
  90                   wxT(" style flag for a 2-state checkbox is useless") );
  91
  92     if ( style & wxALIGN_RIGHT )
  93     {
  94         // VZ: as I don't know a way to create a right aligned checkbox with
  95         //     GTK we will create a checkbox without label and a label at the
  96         //     left of it
  97         m_widgetCheckbox = gtk_check_button_new();
  98
  99         m_widgetLabel = gtk_label_new("");
 100         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
 101
 102         m_widget = gtk_hbox_new(FALSE, 0);
 103         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
 104         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
 105
 106         gtk_widget_show( m_widgetLabel );
 107         gtk_widget_show( m_widgetCheckbox );
 108     }
 109     else
 110     {
 111         m_widgetCheckbox = gtk_check_button_new_with_label("");
 112         m_widgetLabel = BUTTON_CHILD( m_widgetCheckbox );
 113         m_widget = m_widgetCheckbox;
 114     }
 115     SetLabel( label );
 116
 117     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 118                         "toggled",
 119                         GTK_SIGNAL_FUNC(gtk_checkbox_toggled_callback),
 120                         (gpointer *)this );
 121
 122     m_parent->DoAddChild( this );
 123
 124     PostCreation(size);
 125
 126     return true;
 127 }
 128
 129 void wxCheckBox::SetValue( bool state )
 130 {
 131     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 132
 133     if (state == GetValue())
 134         return;
 135
 136     m_blockEvent = true;
 137
 138     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 139
 140     m_blockEvent = false;
 141 }
 142
 143 bool wxCheckBox::GetValue() const
 144 {
 145     wxCHECK_MSG( m_widgetCheckbox != NULL, false, wxT("invalid checkbox") );
 146
 147     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 148 }
 149
 150 void wxCheckBox::SetLabel( const wxString& label )
 151 {
 152     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 153
 154     GTKSetLabelForLabel(GTK_LABEL(m_widgetLabel), label);
 155 }
 156
 157 bool wxCheckBox::Enable( bool enable )
 158 {
 159     if ( !wxControl::Enable( enable ) )
 160         return false;
 161
 162     gtk_widget_set_sensitive( m_widgetLabel, enable );
 163
 164     return true;
 165 }
 166
 167 void wxCheckBox::DoApplyWidgetStyle(GtkRcStyle *style)
 168 {
 169     gtk_widget_modify_style(m_widgetCheckbox, style);
 170     gtk_widget_modify_style(m_widgetLabel, style);
 171 }
 172
 173 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 174 {
 175     return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
 176 }
 177
 178 void wxCheckBox::OnInternalIdle()
 179 {
 180     wxCursor cursor = m_cursor;
 181     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 182
 183     GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
 184     if ( event_window && cursor.Ok() )
 185     {
 186         /* I now set the cursor the anew in every OnInternalIdle call
 187            as setting the cursor in a parent window also effects the
 188            windows above so that checking for the current cursor is
 189            not possible. */
 190
 191        gdk_window_set_cursor( event_window, cursor.GetCursor() );
 192     }
 193
 194     if (g_delayedFocus == this)
 195     {
 196         if (GTK_WIDGET_REALIZED(m_widget))
 197         {
 198             gtk_widget_grab_focus( m_widget );
 199             g_delayedFocus = NULL;
 200         }
 201     }
 202
 203     if (wxUpdateUIEvent::CanUpdate(this))
 204         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 205 }
 206
 207 wxSize wxCheckBox::DoGetBestSize() const
 208 {
 209     return wxControl::DoGetBestSize();
 210 }
 211
 212 // static
 213 wxVisualAttributes
 214 wxCheckBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 215 {
 216     return GetDefaultAttributesFromGTKWidget(gtk_check_button_new);
 217 }
 218
 219 #endif