src/gtk/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()
  49 {
  50 }
  51
  52 wxButton::~wxButton()
  53 {
  54   if (m_clientData) delete m_clientData;
  55 }
  56
  57 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  58       const wxPoint &pos, const wxSize &size,
  59       long style, const wxValidator& validator, const wxString &name )
  60 {
  61   m_clientData = (wxClientData*) NULL;
  62   m_needParent = TRUE;
  63
  64   wxSize newSize = size;
  65
  66   PreCreation( parent, id, pos, newSize, style, name );
  67
  68   SetValidator( validator );
  69
  70   m_widget = gtk_button_new_with_label( m_label );
  71   SetLabel(label);
  72
  73   if (newSize.x == -1) newSize.x = 15+gdk_string_measure( m_widget->style->font, label );
  74   if (newSize.y == -1) newSize.y = 26;
  75   SetSize( newSize.x, newSize.y );
  76
  77   gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  78     GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
  79
  80   m_parent->AddChild( this );
  81
  82   (m_parent->m_insertCallback)( m_parent, this );
  83
  84   PostCreation();
  85
  86   SetBackgroundColour( parent->GetBackgroundColour() );
  87   SetForegroundColour( parent->GetForegroundColour() );
  88
  89   Show( TRUE );
  90
  91   return TRUE;
  92 }
  93
  94 void wxButton::SetDefault(void)
  95 {
  96 /*
  97   GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
  98   gtk_widget_grab_default( m_widget );
  99 */
 100 }
 101
 102 void wxButton::SetLabel( const wxString &label )
 103 {
 104   wxCHECK_RET( m_widget != NULL, "invalid button" );
 105
 106   wxControl::SetLabel( label );
 107
 108   gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel() );
 109 }
 110
 111 void wxButton::Enable( bool enable )
 112 {
 113   wxCHECK_RET( m_widget != NULL, "invalid button" );
 114
 115   wxControl::Enable( enable );
 116
 117   gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 118 }
 119
 120 void wxButton::ApplyWidgetStyle()
 121 {
 122   SetWidgetStyle();
 123   gtk_widget_set_style( m_widget, m_widgetStyle );
 124   gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 125 }
 126
 127