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 #include "gdk/gdk.h"
  17 #include "gtk/gtk.h"
  18
  19 //-----------------------------------------------------------------------------
  20 // classes
  21 //-----------------------------------------------------------------------------
  22
  23 class wxButton;
  24
  25 //-----------------------------------------------------------------------------
  26 // data
  27 //-----------------------------------------------------------------------------
  28
  29 extern bool   g_blockEventsOnDrag;
  30
  31 //-----------------------------------------------------------------------------
  32 // "clicked"
  33 //-----------------------------------------------------------------------------
  34
  35 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
  36 {
  37   if (!button->HasVMT()) return;
  38   if (g_blockEventsOnDrag) return;
  39
  40   wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  41   event.SetEventObject(button);
  42   button->GetEventHandler()->ProcessEvent(event);
  43 }
  44
  45 //-----------------------------------------------------------------------------
  46 // wxButton
  47 //-----------------------------------------------------------------------------
  48
  49 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
  50
  51 wxButton::wxButton()
  52 {
  53 }
  54
  55 wxButton::~wxButton()
  56 {
  57   if (m_clientData) delete m_clientData;
  58 }
  59
  60 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  61       const wxPoint &pos, const wxSize &size,
  62       long style, const wxValidator& validator, const wxString &name )
  63 {
  64     m_clientData = (wxClientData*) NULL;
  65     m_needParent = TRUE;
  66     m_acceptsFocus = TRUE;
  67
  68     wxSize newSize = size;
  69
  70     PreCreation( parent, id, pos, newSize, style, name );
  71
  72     SetValidator( validator );
  73
  74     m_widget = gtk_button_new_with_label( m_label.mbc_str() );
  75     SetLabel(label);
  76
  77     if (newSize.x == -1) newSize.x = 15+gdk_string_measure( m_widget->style->font, label.mbc_str() );
  78     if (newSize.y == -1) newSize.y = 26;
  79     SetSize( newSize.x, newSize.y );
  80
  81     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
  82       GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
  83
  84     m_parent->AddChild( this );
  85
  86     (m_parent->m_insertCallback)( m_parent, this );
  87
  88     PostCreation();
  89
  90     SetBackgroundColour( parent->GetBackgroundColour() );
  91     SetForegroundColour( parent->GetForegroundColour() );
  92     SetFont( parent->GetFont() );
  93
  94     Show( TRUE );
  95
  96     return TRUE;
  97 }
  98
  99 void wxButton::SetDefault(void)
 100 {
 101     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 102     gtk_widget_grab_default( m_widget );
 103
 104     SetSize( m_x, m_y, m_width, m_height );
 105 }
 106
 107 void wxButton::SetLabel( const wxString &label )
 108 {
 109     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 110
 111     wxControl::SetLabel( label );
 112
 113     gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel().mbc_str() );
 114 }
 115
 116 void wxButton::Enable( bool enable )
 117 {
 118     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 119
 120     wxControl::Enable( enable );
 121
 122     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 123 }
 124
 125 void wxButton::ApplyWidgetStyle()
 126 {
 127     SetWidgetStyle();
 128     gtk_widget_set_style( m_widget, m_widgetStyle );
 129     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 130 }