src/gtk1/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        checkbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "checkbox.h"
  13 #endif
  14
  15 #include "wx/checkbox.h"
  16
  17 #if wxUSE_CHECKBOX
  18
  19 #include "gdk/gdk.h"
  20 #include "gtk/gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // idle system
  24 //-----------------------------------------------------------------------------
  25
  26 extern void wxapp_install_idle_handler();
  27 extern bool g_isIdle;
  28
  29 //-----------------------------------------------------------------------------
  30 // data
  31 //-----------------------------------------------------------------------------
  32
  33 extern bool   g_blockEventsOnDrag;
  34
  35 //-----------------------------------------------------------------------------
  36 // "clicked"
  37 //-----------------------------------------------------------------------------
  38
  39 static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(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     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  48     event.SetInt( cb->GetValue() );
  49     event.SetEventObject(cb);
  50     cb->GetEventHandler()->ProcessEvent(event);
  51 }
  52
  53 //-----------------------------------------------------------------------------
  54 // wxCheckBox
  55 //-----------------------------------------------------------------------------
  56
  57 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  58
  59 wxCheckBox::wxCheckBox()
  60 {
  61 }
  62
  63 bool wxCheckBox::Create(wxWindow *parent,
  64                         wxWindowID id,
  65                         const wxString &label,
  66                         const wxPoint &pos,
  67                         const wxSize &size,
  68                         long style,
  69                         const wxValidator& validator,
  70                         const wxString &name )
  71 {
  72     m_needParent = TRUE;
  73     m_acceptsFocus = TRUE;
  74
  75     PreCreation( parent, id, pos, size, style, name );
  76
  77 #if wxUSE_VALIDATORS
  78     SetValidator( validator );
  79 #endif
  80
  81     wxControl::SetLabel( label );
  82
  83     if ( style & wxALIGN_RIGHT )
  84     {
  85         // VZ: as I don't know a way to create a right aligned checkbox with
  86         //     GTK we will create a checkbox without label and a label at the
  87         //     left of it
  88         m_widgetCheckbox = gtk_check_button_new();
  89
  90         m_widgetLabel = gtk_label_new(m_label.mbc_str());
  91         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
  92
  93         m_widget = gtk_hbox_new(FALSE, 0);
  94         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
  95         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
  96
  97         gtk_widget_show( m_widgetLabel );
  98         gtk_widget_show( m_widgetCheckbox );
  99     }
 100     else
 101     {
 102         m_widgetCheckbox = gtk_check_button_new_with_label( m_label.mbc_str() );
 103         m_widgetLabel = GTK_BUTTON( m_widgetCheckbox )->child;
 104         m_widget = m_widgetCheckbox;
 105     }
 106
 107     wxSize newSize(size);
 108     if (newSize.x == -1)
 109     {
 110         newSize.x = 25 + gdk_string_measure( m_widgetCheckbox->style->font,
 111                                              m_label.mbc_str() );
 112     }
 113     if (newSize.y == -1)
 114         newSize.y = 26;
 115
 116     SetSize( newSize.x, newSize.y );
 117
 118     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 119                         "clicked",
 120                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 121                         (gpointer *)this );
 122
 123     m_parent->DoAddChild( this );
 124
 125     PostCreation();
 126
 127     SetBackgroundColour( parent->GetBackgroundColour() );
 128     SetForegroundColour( parent->GetForegroundColour() );
 129     SetFont( parent->GetFont() );
 130
 131     Show( TRUE );
 132
 133     return TRUE;
 134 }
 135
 136 void wxCheckBox::SetValue( bool state )
 137 {
 138     wxCHECK_RET( m_widgetCheckbox != NULL, _T("invalid checkbox") );
 139
 140     if (state == GetValue())
 141         return;
 142
 143     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widgetCheckbox),
 144                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 145                         (gpointer *)this );
 146
 147     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 148
 149     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 150                         "clicked",
 151                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 152                         (gpointer *)this );
 153 }
 154
 155 bool wxCheckBox::GetValue() const
 156 {
 157     wxCHECK_MSG( m_widgetCheckbox != NULL, FALSE, _T("invalid checkbox") );
 158
 159     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 160 }
 161
 162 void wxCheckBox::SetLabel( const wxString& label )
 163 {
 164     wxCHECK_RET( m_widgetLabel != NULL, _T("invalid checkbox") );
 165
 166     wxControl::SetLabel( label );
 167
 168     gtk_label_set( GTK_LABEL(m_widgetLabel), GetLabel().mbc_str() );
 169 }
 170
 171 bool wxCheckBox::Enable( bool enable )
 172 {
 173     if ( !wxControl::Enable( enable ) )
 174         return FALSE;
 175
 176     gtk_widget_set_sensitive( m_widgetLabel, enable );
 177
 178     return TRUE;
 179 }
 180
 181 void wxCheckBox::ApplyWidgetStyle()
 182 {
 183     SetWidgetStyle();
 184     gtk_widget_set_style( m_widgetCheckbox, m_widgetStyle );
 185     gtk_widget_set_style( m_widgetLabel, m_widgetStyle );
 186 }
 187
 188 #endif