1. added support for bitmaps with alpha channel
[wxWidgets.git] / src / gtk / statbmp.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: statbmp.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 "statbmp.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #if wxUSE_STATBMP
18
19 #include "wx/statbmp.h"
20
21 #include "gdk/gdk.h"
22 #include "gtk/gtk.h"
23
24 //-----------------------------------------------------------------------------
25 // wxStaticBitmap
26 //-----------------------------------------------------------------------------
27
28 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap,wxControl)
29
30 wxStaticBitmap::wxStaticBitmap(void)
31 {
32 }
33
34 wxStaticBitmap::wxStaticBitmap( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
35 const wxPoint &pos, const wxSize &size,
36 long style, const wxString &name )
37 {
38 Create( parent, id, bitmap, pos, size, style, name );
39 }
40
41 #ifndef __WXGTK20__
42 // empty bitmap, so that we can create GtkPixmap widget:
43 static char * bogus_xpm[] = {
44 "2 2 1 1",
45 " c None",
46 " ",
47 " "};
48 #endif
49
50 bool wxStaticBitmap::Create( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
51 const wxPoint &pos, const wxSize &size,
52 long style, const wxString &name )
53 {
54 m_needParent = TRUE;
55
56 if (!PreCreation( parent, pos, size ) ||
57 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
58 {
59 wxFAIL_MSG( wxT("wxStaticBitmap creation failed") );
60 return false;
61 }
62
63 m_bitmap = bitmap;
64
65 #ifdef __WXGTK20__
66 m_widget = gtk_image_new();
67 #else
68 wxBitmap bmp(bitmap.Ok() ? bitmap : wxBitmap(bogus_xpm));
69 m_widget = gtk_pixmap_new(bmp.GetPixmap(), NULL);
70 #endif
71
72 if (bitmap.Ok())
73 SetBitmap(bitmap);
74
75 PostCreation(size);
76 m_parent->DoAddChild( this );
77
78 return true;
79 }
80
81 void wxStaticBitmap::SetBitmap( const wxBitmap &bitmap )
82 {
83 m_bitmap = bitmap;
84
85 if (m_bitmap.Ok())
86 {
87 GdkBitmap *mask = (GdkBitmap *) NULL;
88 if (m_bitmap.GetMask())
89 mask = m_bitmap.GetMask()->GetBitmap();
90
91 #ifdef __WXGTK20__
92 if (m_bitmap.HasPixbuf())
93 {
94 gtk_image_set_from_pixbuf(GTK_IMAGE(m_widget),
95 m_bitmap.GetPixbuf());
96 }
97 else
98 gtk_image_set_from_pixmap(GTK_IMAGE(m_widget),
99 m_bitmap.GetPixmap(), mask);
100 #else
101 gtk_pixmap_set(GTK_PIXMAP(m_widget), m_bitmap.GetPixmap(), mask);
102 #endif
103
104 InvalidateBestSize();
105 SetSize(GetBestSize());
106 }
107 }
108
109 // static
110 wxVisualAttributes
111 wxStaticBitmap::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
112 {
113 // TODO: overload to allow using gtk_pixmap_new?
114 return GetDefaultAttributesFromGTKWidget(gtk_label_new);
115 }
116
117 #endif // wxUSE_STATBMP
118