src/gtk1/button.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        button.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "button.h"
  12 #endif
  13
  14 #include "wx/button.h"
  15
  16 //-----------------------------------------------------------------------------
  17 // classes
  18 //-----------------------------------------------------------------------------
  19
  20 class wxButton;
  21
  22 //-----------------------------------------------------------------------------
  23 // data
  24 //-----------------------------------------------------------------------------
  25
  26 extern bool   g_blockEventsOnDrag;
  27
  28 //-----------------------------------------------------------------------------
  29 // "clicked"
  30 //-----------------------------------------------------------------------------
  31
  32 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
  33 {
  34   if (!button->HasVMT()) return;
  35   if (g_blockEventsOnDrag) return;
  36
  37   wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  38   event.SetEventObject(button);
  39   button->GetEventHandler()->ProcessEvent(event);
  40 }
  41
  42 //-----------------------------------------------------------------------------
  43 // wxButton
  44 //-----------------------------------------------------------------------------
  45
  46 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
  47
  48 wxButton::wxButton(void)
  49 {
  50 }
  51
  52 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  53       const wxPoint &pos, const wxSize &size,
  54       long style, const wxValidator& validator, const wxString &name )
  55 {
  56   m_needParent = TRUE;
  57
  58   wxSize newSize = size;
  59
  60   PreCreation( parent, id, pos, newSize, style, name );
  61
  62   SetValidator( validator );
  63
  64   m_widget = gtk_button_new_with_label( m_label );
  65   SetLabel(label);
  66
  67   if (newSize.x == -1) newSize.x = 15+gdk_string_measure( m_widget->style->font, label );
  68   if (newSize.y == -1) newSize.y = 26;
  69   SetSize( newSize.x, newSize.y );
  70
  71   gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  72     GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
  73
  74   PostCreation();
  75
  76   Show( TRUE );
  77
  78   return TRUE;
  79 }
  80
  81 void wxButton::SetDefault(void)
  82 {
  83 /*
  84   GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
  85   gtk_widget_grab_default( m_widget );
  86 */
  87 }
  88
  89 void wxButton::SetLabel( const wxString &label )
  90 {
  91   wxControl::SetLabel( label );
  92   GtkButton *bin = GTK_BUTTON( m_widget );
  93   GtkLabel *g_label = GTK_LABEL( bin->child );
  94   gtk_label_set( g_label, GetLabel() );
  95 }
  96
  97 void wxButton::Enable( bool enable )
  98 {
  99   wxControl::Enable( enable );
 100   GtkButton *bin = GTK_BUTTON( m_widget );
 101   GtkWidget *label = bin->child;
 102   gtk_widget_set_sensitive( label, enable );
 103 }
 104
 105 void wxButton::SetFont( const wxFont &font )
 106 {
 107   if (((wxFont*)&font)->Ok())
 108     m_font = font;
 109   else
 110     m_font = *wxSWISS_FONT;
 111
 112   GtkButton *bin = GTK_BUTTON( m_widget );
 113   GtkWidget *label = bin->child;
 114
 115   GtkStyle *style = (GtkStyle*) NULL;
 116   if (!m_hasOwnStyle)
 117   {
 118     m_hasOwnStyle = TRUE;
 119     style = gtk_style_copy( gtk_widget_get_style( label ) );
 120   }
 121   else
 122   {
 123     style = gtk_widget_get_style( label );
 124   }
 125
 126   gdk_font_unref( style->font );
 127   style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );
 128
 129   gtk_widget_set_style( label, style );
 130 }