src/gtk/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/bmpbuttn.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "bmpbuttn.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/defs.h"
  18
  19 #if wxUSE_BMPBUTTON
  20
  21 #include "wx/bmpbuttn.h"
  22
  23 #include "wx/gtk/private.h"
  24
  25 //-----------------------------------------------------------------------------
  26 // classes
  27 //-----------------------------------------------------------------------------
  28
  29 class wxBitmapButton;
  30
  31 //-----------------------------------------------------------------------------
  32 // idle system
  33 //-----------------------------------------------------------------------------
  34
  35 extern void wxapp_install_idle_handler();
  36 extern bool g_isIdle;
  37
  38 //-----------------------------------------------------------------------------
  39 // data
  40 //-----------------------------------------------------------------------------
  41
  42 extern bool   g_blockEventsOnDrag;
  43
  44 //-----------------------------------------------------------------------------
  45 // "clicked"
  46 //-----------------------------------------------------------------------------
  47
  48 extern "C" {
  49 static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  50 {
  51     if (g_isIdle)
  52         wxapp_install_idle_handler();
  53
  54     if (!button->m_hasVMT) return;
  55     if (g_blockEventsOnDrag) return;
  56
  57     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  58     event.SetEventObject(button);
  59     button->GetEventHandler()->ProcessEvent(event);
  60 }
  61 }
  62
  63 //-----------------------------------------------------------------------------
  64 // "enter"
  65 //-----------------------------------------------------------------------------
  66
  67 extern "C" {
  68 static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  69 {
  70     if (!button->m_hasVMT) return;
  71     if (g_blockEventsOnDrag) return;
  72
  73     button->HasFocus();
  74 }
  75 }
  76
  77 //-----------------------------------------------------------------------------
  78 // "leave"
  79 //-----------------------------------------------------------------------------
  80
  81 extern "C" {
  82 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  83 {
  84     if (!button->m_hasVMT) return;
  85     if (g_blockEventsOnDrag) return;
  86
  87     button->NotFocus();
  88 }
  89 }
  90
  91 //-----------------------------------------------------------------------------
  92 // "pressed"
  93 //-----------------------------------------------------------------------------
  94
  95 extern "C" {
  96 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  97 {
  98     if (!button->m_hasVMT) return;
  99     if (g_blockEventsOnDrag) return;
 100
 101     button->StartSelect();
 102 }
 103 }
 104
 105 //-----------------------------------------------------------------------------
 106 // "released"
 107 //-----------------------------------------------------------------------------
 108
 109 extern "C" {
 110 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
 111 {
 112     if (!button->m_hasVMT) return;
 113     if (g_blockEventsOnDrag) return;
 114
 115     button->EndSelect();
 116 }
 117 }
 118
 119 //-----------------------------------------------------------------------------
 120 // wxBitmapButton
 121 //-----------------------------------------------------------------------------
 122
 123 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)
 124
 125 void wxBitmapButton::Init()
 126 {
 127     m_hasFocus =
 128     m_isSelected = false;
 129 }
 130
 131 bool wxBitmapButton::Create( wxWindow *parent,
 132                              wxWindowID id,
 133                              const wxBitmap& bitmap,
 134                              const wxPoint& pos,
 135                              const wxSize& size,
 136                              long style,
 137                              const wxValidator& validator,
 138                              const wxString &name )
 139 {
 140     m_needParent = true;
 141     m_acceptsFocus = true;
 142
 143     if (!PreCreation( parent, pos, size ) ||
 144         !CreateBase( parent, id, pos, size, style, validator, name ))
 145     {
 146         wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
 147         return false;
 148     }
 149
 150     m_bmpNormal = bitmap;
 151
 152     m_widget = gtk_button_new();
 153
 154     if (style & wxNO_BORDER)
 155        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 156
 157     if (m_bmpNormal.Ok())
 158     {
 159         OnSetBitmap();
 160     }
 161
 162     gtk_signal_connect_after( GTK_OBJECT(m_widget), "clicked",
 163       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 164
 165     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 166       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 167     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 168       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 169     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 170       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 171     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 172       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 173
 174     m_parent->DoAddChild( this );
 175
 176     PostCreation(size);
 177
 178     return true;
 179 }
 180
 181 void wxBitmapButton::SetDefault()
 182 {
 183     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 184     gtk_widget_grab_default( m_widget );
 185
 186     SetSize( m_x, m_y, m_width, m_height );
 187 }
 188
 189 void wxBitmapButton::SetLabel( const wxString &label )
 190 {
 191     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 192
 193     wxControl::SetLabel( label );
 194 }
 195
 196 wxString wxBitmapButton::GetLabel() const
 197 {
 198     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid button") );
 199
 200     return wxControl::GetLabel();
 201 }
 202
 203 void wxBitmapButton::DoApplyWidgetStyle(GtkRcStyle *style)
 204 {
 205     if ( !BUTTON_CHILD(m_widget) )
 206         return;
 207
 208     wxButton::DoApplyWidgetStyle(style);
 209 }
 210
 211 void wxBitmapButton::OnSetBitmap()
 212 {
 213     wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
 214
 215     InvalidateBestSize();
 216
 217     wxBitmap the_one;
 218     if (!m_isEnabled)
 219         the_one = m_bmpDisabled;
 220     else if (m_isSelected)
 221         the_one = m_bmpSelected;
 222     else if (m_hasFocus)
 223         the_one = m_bmpFocus;
 224     else
 225         the_one = m_bmpNormal;
 226
 227     if (!the_one.Ok()) the_one = m_bmpNormal;
 228     if (!the_one.Ok()) return;
 229
 230     GdkBitmap *mask = (GdkBitmap *) NULL;
 231     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 232
 233     GtkWidget *child = BUTTON_CHILD(m_widget);
 234     if (child == NULL)
 235     {
 236         // initial bitmap
 237         GtkWidget *pixmap;
 238 #ifdef __WXGTK20__
 239         if (the_one.HasPixbuf())
 240             pixmap = gtk_image_new_from_pixbuf(the_one.GetPixbuf());
 241         else
 242             pixmap = gtk_image_new_from_pixmap(the_one.GetPixmap(), mask);
 243 #else
 244         pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
 245 #endif
 246         gtk_widget_show(pixmap);
 247         gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
 248     }
 249     else
 250     {   // subsequent bitmaps
 251 #ifdef __WXGTK20__
 252         GtkImage *pixmap = GTK_IMAGE(child);
 253         if (the_one.HasPixbuf())
 254             gtk_image_set_from_pixbuf(pixmap, the_one.GetPixbuf());
 255         else
 256             gtk_image_set_from_pixmap(pixmap, the_one.GetPixmap(), mask);
 257 #else
 258         GtkPixmap *pixmap = GTK_PIXMAP(child);
 259         gtk_pixmap_set(pixmap, the_one.GetPixmap(), mask);
 260 #endif
 261     }
 262 }
 263
 264 wxSize wxBitmapButton::DoGetBestSize() const
 265 {
 266     return wxControl::DoGetBestSize();
 267 }
 268
 269 bool wxBitmapButton::Enable( bool enable )
 270 {
 271     if ( !wxWindow::Enable(enable) )
 272         return false;
 273
 274     OnSetBitmap();
 275
 276     return true;
 277 }
 278
 279 void wxBitmapButton::HasFocus()
 280 {
 281     m_hasFocus = true;
 282     OnSetBitmap();
 283 }
 284
 285 void wxBitmapButton::NotFocus()
 286 {
 287     m_hasFocus = false;
 288     OnSetBitmap();
 289 }
 290
 291 void wxBitmapButton::StartSelect()
 292 {
 293     m_isSelected = true;
 294     OnSetBitmap();
 295 }
 296
 297 void wxBitmapButton::EndSelect()
 298 {
 299     m_isSelected = false;
 300     OnSetBitmap();
 301 }
 302
 303 #endif // wxUSE_BMPBUTTON
 304