src/gtk/button.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        button.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "button.h"
  13 #endif
  14
  15 #include "wx/button.h"
  16
  17 //-----------------------------------------------------------------------------
  18 // classes
  19 //-----------------------------------------------------------------------------
  20
  21 class wxButton;
  22
  23 //-----------------------------------------------------------------------------
  24 // data
  25 //-----------------------------------------------------------------------------
  26
  27 extern bool   g_blockEventsOnDrag;
  28
  29 //-----------------------------------------------------------------------------
  30 // "clicked"
  31 //-----------------------------------------------------------------------------
  32
  33 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
  34 {
  35   if (!button->HasVMT()) return;
  36   if (g_blockEventsOnDrag) return;
  37
  38   wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  39   event.SetEventObject(button);
  40   button->GetEventHandler()->ProcessEvent(event);
  41 }
  42
  43 //-----------------------------------------------------------------------------
  44 // wxButton
  45 //-----------------------------------------------------------------------------
  46
  47 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
  48
  49 wxButton::wxButton(void)
  50 {
  51 }
  52
  53 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  54       const wxPoint &pos, const wxSize &size,
  55       long style, const wxValidator& validator, const wxString &name )
  56 {
  57   m_needParent = TRUE;
  58
  59   wxSize newSize = size;
  60
  61   PreCreation( parent, id, pos, newSize, style, name );
  62
  63   SetValidator( validator );
  64
  65   m_widget = gtk_button_new_with_label( m_label );
  66   SetLabel(label);
  67
  68   if (newSize.x == -1) newSize.x = 15+gdk_string_measure( m_widget->style->font, label );
  69   if (newSize.y == -1) newSize.y = 26;
  70   SetSize( newSize.x, newSize.y );
  71
  72   gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  73     GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
  74
  75   PostCreation();
  76
  77   Show( TRUE );
  78
  79   return TRUE;
  80 }
  81
  82 void wxButton::SetDefault(void)
  83 {
  84 /*
  85   GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
  86   gtk_widget_grab_default( m_widget );
  87 */
  88 }
  89
  90 void wxButton::SetLabel( const wxString &label )
  91 {
  92   wxControl::SetLabel( label );
  93   GtkButton *bin = GTK_BUTTON( m_widget );
  94   GtkLabel *g_label = GTK_LABEL( bin->child );
  95   gtk_label_set( g_label, GetLabel() );
  96 }
  97
  98 void wxButton::Enable( bool enable )
  99 {
 100   wxControl::Enable( enable );
 101   GtkButton *bin = GTK_BUTTON( m_widget );
 102   GtkWidget *label = bin->child;
 103   gtk_widget_set_sensitive( label, enable );
 104 }
 105
 106 void wxButton::SetFont( const wxFont &font )
 107 {
 108   if (((wxFont*)&font)->Ok())
 109     m_font = font;
 110   else
 111     m_font = *wxSWISS_FONT;
 112
 113   GtkButton *bin = GTK_BUTTON( m_widget );
 114   GtkWidget *label = bin->child;
 115
 116   GtkStyle *style = (GtkStyle*) NULL;
 117   if (!m_hasOwnStyle)
 118   {
 119     m_hasOwnStyle = TRUE;
 120     style = gtk_style_copy( gtk_widget_get_style( label ) );
 121   }
 122   else
 123   {
 124     style = gtk_widget_get_style( label );
 125   }
 126
 127   gdk_font_unref( style->font );
 128   style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );
 129
 130   gtk_widget_set_style( label, style );
 131 }