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(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   SetBackgroundColour( parent->GetBackgroundColour() );
  77
  78   Show( TRUE );
  79
  80   return TRUE;
  81 }
  82
  83 void wxButton::SetDefault(void)
  84 {
  85 /*
  86   GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
  87   gtk_widget_grab_default( m_widget );
  88 */
  89 }
  90
  91 void wxButton::SetLabel( const wxString &label )
  92 {
  93   wxCHECK_RET( m_widget != NULL, "invalid button" );
  94
  95   wxControl::SetLabel( label );
  96
  97   gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel() );
  98 }
  99
 100 void wxButton::Enable( bool enable )
 101 {
 102   wxCHECK_RET( m_widget != NULL, "invalid button" );
 103
 104   wxControl::Enable( enable );
 105
 106   gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 107 }
 108
 109 void wxButton::SetFont( const wxFont &font )
 110 {
 111   wxCHECK_RET( m_widget != NULL, "invalid button" );
 112
 113   wxControl::SetFont( font );
 114
 115   gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 116 }
 117
 118 void wxButton::SetBackgroundColour( const wxColour &colour )
 119 {
 120   wxCHECK_RET( m_widget != NULL, "invalid button" );
 121
 122   wxControl::SetBackgroundColour( colour );
 123
 124   if (!m_backgroundColour.Ok()) return;
 125
 126   gtk_widget_set_style( m_widget, m_widgetStyle );
 127 }
 128
 129 void wxButton::SetForegroundColour( const wxColour &colour )
 130 {
 131   wxCHECK_RET( m_widget != NULL, "invalid button" );
 132
 133   wxControl::SetForegroundColour( colour );
 134
 135   if (!m_foregroundColour.Ok()) return;
 136
 137   gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 138 }
 139