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 // idle system
  27 //-----------------------------------------------------------------------------
  28
  29 extern void wxapp_install_idle_handler();
  30 extern bool g_isIdle;
  31
  32 //-----------------------------------------------------------------------------
  33 // data
  34 //-----------------------------------------------------------------------------
  35
  36 extern bool   g_blockEventsOnDrag;
  37
  38 //-----------------------------------------------------------------------------
  39 // "clicked"
  40 //-----------------------------------------------------------------------------
  41
  42 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
  43 {
  44     if (g_isIdle)
  45        wxapp_install_idle_handler();
  46
  47     if (!button->m_hasVMT) return;
  48     if (g_blockEventsOnDrag) return;
  49
  50     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  51     event.SetEventObject(button);
  52     button->GetEventHandler()->ProcessEvent(event);
  53 }
  54
  55 //-----------------------------------------------------------------------------
  56 // wxButton
  57 //-----------------------------------------------------------------------------
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
  60
  61 wxButton::wxButton()
  62 {
  63 }
  64
  65 wxButton::~wxButton()
  66 {
  67 }
  68
  69 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  70       const wxPoint &pos, const wxSize &size,
  71       long style, const wxValidator& validator, const wxString &name )
  72 {
  73     m_needParent = TRUE;
  74     m_acceptsFocus = TRUE;
  75
  76     if (!PreCreation( parent, pos, size ) ||
  77         !CreateBase( parent, id, pos, size, style, validator, name ))
  78     {
  79         wxFAIL_MSG( wxT("wxButton creation failed") );
  80         return FALSE;
  81     }
  82
  83 /*
  84     wxString label2( label );
  85     for (size_t i = 0; i < label2.Len(); i++)
  86     {
  87         if (label2.GetChar(i) == wxT('&'))
  88             label2.SetChar(i,wxT('_'));
  89     }
  90
  91     GtkWidget *accel_label = gtk_accel_label_new( label2.mb_str() );
  92     gtk_widget_show( accel_label );
  93
  94     m_widget = gtk_button_new();
  95     gtk_container_add( GTK_CONTAINER(m_widget), accel_label );
  96
  97     gtk_accel_label_set_accel_widget( GTK_ACCEL_LABEL(accel_label), m_widget );
  98
  99     guint accel_key = gtk_label_parse_uline (GTK_LABEL(accel_label), label2.mb_str() );
 100     gtk_accel_label_refetch( GTK_ACCEL_LABEL(accel_label) );
 101
 102     wxControl::SetLabel( label );
 103 */
 104
 105     m_widget = gtk_button_new_with_label("");
 106
 107     SetLabel( label );
 108
 109 #if (GTK_MINOR_VERSION > 0)
 110     if (style & wxNO_BORDER)
 111        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 112 #endif
 113
 114     int x = 0;  int y = 0;
 115     wxFont new_font( parent->GetFont() );
 116     GetTextExtent( m_label, &x, &y, (int*)NULL, (int*)NULL, &new_font );
 117
 118     wxSize newSize = size;
 119     if (newSize.x == -1)
 120     {
 121         newSize.x = 12+x;
 122         if (newSize.x < 80) newSize.x = 80;
 123     }
 124     if (newSize.y == -1)
 125     {
 126         newSize.y = 11+y;
 127         if (newSize.x < 26) newSize.x = 26;
 128     }
 129
 130     SetSize( newSize.x, newSize.y );
 131
 132     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 133       GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
 134
 135     m_parent->DoAddChild( this );
 136
 137     PostCreation();
 138
 139     SetBackgroundColour( parent->GetBackgroundColour() );
 140     SetForegroundColour( parent->GetForegroundColour() );
 141     SetFont( parent->GetFont() );
 142
 143     Show( TRUE );
 144
 145     return TRUE;
 146 }
 147
 148 void wxButton::SetDefault()
 149 {
 150     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 151     gtk_widget_grab_default( m_widget );
 152
 153     SetSize( m_x, m_y, m_width, m_height );
 154 }
 155
 156 /* static */
 157 wxSize wxButton::GetDefaultSize()
 158 {
 159     return wxSize(80,26);
 160 }
 161
 162 void wxButton::SetLabel( const wxString &label )
 163 {
 164     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 165
 166     wxControl::SetLabel( label );
 167
 168     gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel().mbc_str() );
 169 }
 170
 171 bool wxButton::Enable( bool enable )
 172 {
 173     if ( !wxControl::Enable( enable ) )
 174         return FALSE;
 175
 176     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 177
 178     return TRUE;
 179 }
 180
 181 void wxButton::ApplyWidgetStyle()
 182 {
 183     SetWidgetStyle();
 184     gtk_widget_set_style( m_widget, m_widgetStyle );
 185     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 186 }