src/gtk1/checkbox.cpp

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