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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/motif/statbmp.cpp
3 // Purpose: wxStaticBitmap
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
14
15 #include "wx/statbmp.h"
16
17 #ifdef __VMS__
18 #pragma message disable nosimpint
19 #endif
20 #include <Xm/Xm.h>
21 #include <Xm/Label.h>
22 #include <Xm/LabelG.h>
23 #ifdef __VMS__
24 #pragma message enable nosimpint
25 #endif
26
27 #include "wx/motif/private.h"
28
29 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
30
31 /*
32 * wxStaticBitmap
33 */
34
35 bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
36 const wxBitmap& bitmap,
37 const wxPoint& pos,
38 const wxSize& size,
39 long style,
40 const wxString& name)
41 {
42 if( !CreateControl( parent, id, pos, size, style, wxDefaultValidator,
43 name ) )
44 return false;
45 PreCreation();
46
47 m_messageBitmap = bitmap;
48 m_messageBitmapOriginal = bitmap;
49
50 Widget parentWidget = (Widget) parent->GetClientWidget();
51
52 m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("staticBitmap",
53 #if wxUSE_GADGETS
54 xmLabelGadgetClass, parentWidget,
55 #else
56 xmLabelWidgetClass, parentWidget,
57 #endif
58 XmNalignment, XmALIGNMENT_BEGINNING,
59 NULL);
60
61 wxSize actualSize(size);
62 // work around the cases where the bitmap is a wxNull(Icon/Bitmap)
63 if (actualSize.x == -1)
64 actualSize.x = bitmap.Ok() ? bitmap.GetWidth() : 1;
65 if (actualSize.y == -1)
66 actualSize.y = bitmap.Ok() ? bitmap.GetHeight() : 1;
67
68 PostCreation();
69 DoSetBitmap();
70 AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
71 pos.x, pos.y, actualSize.x, actualSize.y);
72
73 return true;
74 }
75
76 wxStaticBitmap::~wxStaticBitmap()
77 {
78 SetBitmap(wxNullBitmap);
79 }
80
81 void wxStaticBitmap::DoSetBitmap()
82 {
83 Widget widget = (Widget) m_mainWidget;
84 int w2, h2;
85
86 if (m_messageBitmapOriginal.Ok())
87 {
88 w2 = m_messageBitmapOriginal.GetWidth();
89 h2 = m_messageBitmapOriginal.GetHeight();
90
91 Pixmap pixmap;
92
93 // Must re-make the bitmap to have its transparent areas drawn
94 // in the current widget background colour.
95 if (m_messageBitmapOriginal.GetMask())
96 {
97 WXPixel backgroundPixel;
98 XtVaGetValues( widget, XmNbackground, &backgroundPixel,
99 NULL);
100
101 wxColour col;
102 col.SetPixel(backgroundPixel);
103
104 wxBitmap newBitmap = wxCreateMaskedBitmap(m_messageBitmapOriginal, col);
105 m_messageBitmap = newBitmap;
106
107 pixmap = (Pixmap) m_messageBitmap.GetDrawable();
108 }
109 else
110 {
111 m_bitmapCache.SetBitmap( m_messageBitmap );
112 pixmap = (Pixmap)m_bitmapCache.GetLabelPixmap(widget);
113 }
114
115 XtVaSetValues (widget,
116 XmNlabelPixmap, pixmap,
117 XmNlabelType, XmPIXMAP,
118 NULL);
119
120 SetSize(w2, h2);
121 }
122 else
123 {
124 // Null bitmap: must not use current pixmap
125 // since it is no longer valid.
126 XtVaSetValues (widget,
127 XmNlabelType, XmSTRING,
128 XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
129 NULL);
130 }
131 }
132
133 void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
134 {
135 m_messageBitmap = bitmap;
136 m_messageBitmapOriginal = bitmap;
137
138 DoSetBitmap();
139 }
140
141 void wxStaticBitmap::ChangeBackgroundColour()
142 {
143 wxWindow::ChangeBackgroundColour();
144
145 // must recalculate the background colour
146 m_bitmapCache.SetColoursChanged();
147 DoSetBitmap();
148 }
149
150 void wxStaticBitmap::ChangeForegroundColour()
151 {
152 m_bitmapCache.SetColoursChanged();
153 wxWindow::ChangeForegroundColour();
154 }