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/defs.h"
  15
  16 #if wxUSE_BUTTON
  17
  18 #include "wx/button.h"
  19
  20 #include <gdk/gdk.h>
  21 #include <gtk/gtk.h>
  22
  23 //-----------------------------------------------------------------------------
  24 // classes
  25 //-----------------------------------------------------------------------------
  26
  27 class wxButton;
  28
  29 //-----------------------------------------------------------------------------
  30 // idle system
  31 //-----------------------------------------------------------------------------
  32
  33 extern void wxapp_install_idle_handler();
  34 extern bool g_isIdle;
  35
  36 //-----------------------------------------------------------------------------
  37 // data
  38 //-----------------------------------------------------------------------------
  39
  40 extern bool   g_blockEventsOnDrag;
  41
  42 //-----------------------------------------------------------------------------
  43 // "clicked"
  44 //-----------------------------------------------------------------------------
  45
  46 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
  47 {
  48     if (g_isIdle)
  49        wxapp_install_idle_handler();
  50
  51     if (!button->m_hasVMT) return;
  52     if (g_blockEventsOnDrag) return;
  53
  54     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  55     event.SetEventObject(button);
  56     button->GetEventHandler()->ProcessEvent(event);
  57 }
  58
  59 //-----------------------------------------------------------------------------
  60 // wxButton
  61 //-----------------------------------------------------------------------------
  62
  63 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
  64
  65 wxButton::wxButton()
  66 {
  67 }
  68
  69 wxButton::~wxButton()
  70 {
  71 }
  72
  73 bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
  74       const wxPoint &pos, const wxSize &size,
  75       long style, const wxValidator& validator, const wxString &name )
  76 {
  77     m_needParent = TRUE;
  78     m_acceptsFocus = TRUE;
  79
  80     if (!PreCreation( parent, pos, size ) ||
  81         !CreateBase( parent, id, pos, size, style, validator, name ))
  82     {
  83         wxFAIL_MSG( wxT("wxButton creation failed") );
  84         return FALSE;
  85     }
  86
  87 /*
  88     wxString label2( label );
  89     for (size_t i = 0; i < label2.Len(); i++)
  90     {
  91         if (label2.GetChar(i) == wxT('&'))
  92         label2.SetChar(i,wxT('_'));
  93     }
  94
  95     GtkWidget *accel_label = gtk_accel_label_new( label2.mb_str() );
  96     gtk_widget_show( accel_label );
  97
  98     m_widget = gtk_button_new();
  99     gtk_container_add( GTK_CONTAINER(m_widget), accel_label );
 100
 101     gtk_accel_label_set_accel_widget( GTK_ACCEL_LABEL(accel_label), m_widget );
 102
 103     guint accel_key = gtk_label_parse_uline (GTK_LABEL(accel_label), label2.mb_str() );
 104     gtk_accel_label_refetch( GTK_ACCEL_LABEL(accel_label) );
 105
 106     wxControl::SetLabel( label );
 107 */
 108
 109     m_widget = gtk_button_new_with_label("");
 110
 111     SetLabel( label );
 112
 113 #if (GTK_MINOR_VERSION > 0)
 114     if (style & wxNO_BORDER)
 115        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 116 #endif
 117
 118     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 119       GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
 120
 121     m_parent->DoAddChild( this );
 122
 123     PostCreation();
 124
 125     SetFont( parent->GetFont() );
 126
 127     wxSize best_size( DoGetBestSize() );
 128     wxSize new_size( size );
 129     if (new_size.x == -1)
 130         new_size.x = best_size.x;
 131     if (new_size.y == -1)
 132         new_size.y = best_size.y;
 133     if ((new_size.x != size.x) || (new_size.y != size.y))
 134         SetSize( new_size.x, new_size.y );
 135
 136     SetSize( new_size );
 137
 138     SetBackgroundColour( parent->GetBackgroundColour() );
 139     SetForegroundColour( parent->GetForegroundColour() );
 140
 141     Show( TRUE );
 142
 143     return TRUE;
 144 }
 145
 146 void wxButton::SetDefault()
 147 {
 148     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 149     gtk_widget_grab_default( m_widget );
 150
 151     SetSize( m_x, m_y, m_width, m_height );
 152 }
 153
 154 /* static */
 155 wxSize wxButton::GetDefaultSize()
 156 {
 157     return wxSize(80,26);
 158 }
 159
 160 void wxButton::SetLabel( const wxString &label )
 161 {
 162     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 163
 164     wxControl::SetLabel( label );
 165
 166     gtk_label_set( GTK_LABEL( GTK_BUTTON(m_widget)->child ), GetLabel().mbc_str() );
 167 }
 168
 169 bool wxButton::Enable( bool enable )
 170 {
 171     if ( !wxControl::Enable( enable ) )
 172         return FALSE;
 173
 174     gtk_widget_set_sensitive( GTK_BUTTON(m_widget)->child, enable );
 175
 176     return TRUE;
 177 }
 178
 179 void wxButton::ApplyWidgetStyle()
 180 {
 181     SetWidgetStyle();
 182     gtk_widget_set_style( m_widget, m_widgetStyle );
 183     gtk_widget_set_style( GTK_BUTTON(m_widget)->child, m_widgetStyle );
 184 }
 185
 186 wxSize wxButton::DoGetBestSize() const
 187 {
 188     wxSize ret( wxControl::DoGetBestSize() );
 189
 190     if (!HasFlag(wxBU_EXACTFIT))
 191     {
 192         if (ret.x < 80) ret.x = 80;
 193     }
 194
 195     return ret;
 196 }
 197
 198 #endif // wxUSE_BUTTON
 199