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     WXValidateStyle(&style);
  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                         "toggled",
 115                         GTK_SIGNAL_FUNC(gtk_checkbox_toggled_callback),
 116                         (gpointer *)this );
 117
 118     m_parent->DoAddChild( this );
 119
 120     PostCreation(size);
 121
 122     return true;
 123 }
 124
 125 void wxCheckBox::SetValue( bool state )
 126 {
 127     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 128
 129     if (state == GetValue())
 130         return;
 131
 132     m_blockEvent = true;
 133
 134     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 135
 136     m_blockEvent = false;
 137 }
 138
 139 bool wxCheckBox::GetValue() const
 140 {
 141     wxCHECK_MSG( m_widgetCheckbox != NULL, false, wxT("invalid checkbox") );
 142
 143     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 144 }
 145
 146 void wxCheckBox::SetLabel( const wxString& label )
 147 {
 148     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 149
 150     GTKSetLabelForLabel(GTK_LABEL(m_widgetLabel), label);
 151 }
 152
 153 bool wxCheckBox::Enable( bool enable )
 154 {
 155     if ( !wxControl::Enable( enable ) )
 156         return false;
 157
 158     gtk_widget_set_sensitive( m_widgetLabel, enable );
 159
 160     return true;
 161 }
 162
 163 void wxCheckBox::DoApplyWidgetStyle(GtkRcStyle *style)
 164 {
 165     gtk_widget_modify_style(m_widgetCheckbox, style);
 166     gtk_widget_modify_style(m_widgetLabel, style);
 167 }
 168
 169 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 170 {
 171     return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
 172 }
 173
 174 void wxCheckBox::OnInternalIdle()
 175 {
 176     wxCursor cursor = m_cursor;
 177     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 178
 179     GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
 180     if ( event_window && cursor.Ok() )
 181     {
 182         /* I now set the cursor the anew in every OnInternalIdle call
 183            as setting the cursor in a parent window also effects the
 184            windows above so that checking for the current cursor is
 185            not possible. */
 186
 187        gdk_window_set_cursor( event_window, cursor.GetCursor() );
 188     }
 189
 190     if (g_delayedFocus == this)
 191     {
 192         if (GTK_WIDGET_REALIZED(m_widget))
 193         {
 194             gtk_widget_grab_focus( m_widget );
 195             g_delayedFocus = NULL;
 196         }
 197     }
 198
 199     if (wxUpdateUIEvent::CanUpdate(this))
 200         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 201 }
 202
 203 wxSize wxCheckBox::DoGetBestSize() const
 204 {
 205     return wxControl::DoGetBestSize();
 206 }
 207
 208 // static
 209 wxVisualAttributes
 210 wxCheckBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 211 {
 212     return GetDefaultAttributesFromGTKWidget(gtk_check_button_new);
 213 }
 214
 215 #endif