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Fix broken and missing DataView interface items for Phoenix
[wxWidgets.git] / src / gtk / dcmemory.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/gtk/dcmemory.cpp
3// Purpose:
4// Author: Robert Roebling
5// RCS-ID: $Id$
6// Copyright: (c) 1998 Robert Roebling
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10// For compilers that support precompilation, includes "wx.h".
11#include "wx/wxprec.h"
12
13#include "wx/gtk/dcmemory.h"
14
15#include <gtk/gtk.h>
16
17//-----------------------------------------------------------------------------
18// wxMemoryDCImpl
19//-----------------------------------------------------------------------------
20
21IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxWindowDCImpl)
22
23wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner )
24 : wxWindowDCImpl( owner )
25{
26 Init();
27}
28
29wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap)
30 : wxWindowDCImpl( owner )
31{
32 Init();
33 DoSelect(bitmap);
34}
35
36wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC *WXUNUSED(dc) )
37 : wxWindowDCImpl( owner )
38{
39 Init();
40}
41
42wxMemoryDCImpl::~wxMemoryDCImpl()
43{
44 g_object_unref(m_context);
45}
46
47void wxMemoryDCImpl::Init()
48{
49 m_ok = false;
50
51 m_cmap = gtk_widget_get_default_colormap();
52
53 m_context = gdk_pango_context_get();
54 // Note: The Sun customised version of Pango shipping with Solaris 10
55 // crashes if the language is left NULL (see bug 1374114)
56 pango_context_set_language( m_context, gtk_get_default_language() );
57 m_layout = pango_layout_new( m_context );
58 m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) );
59}
60
61void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
62{
63 Destroy();
64
65 m_selected = bitmap;
66 if (m_selected.IsOk())
67 {
68 m_gdkwindow = m_selected.GetPixmap();
69
70 m_selected.PurgeOtherRepresentations(wxBitmap::Pixmap);
71
72 SetUpDC( true );
73 }
74 else
75 {
76 m_ok = false;
77 m_gdkwindow = NULL;
78 }
79}
80
81void wxMemoryDCImpl::SetPen( const wxPen& penOrig )
82{
83 wxPen pen( penOrig );
84 if ( m_selected.IsOk() &&
85 m_selected.GetDepth() == 1 &&
86 (pen != *wxTRANSPARENT_PEN) )
87 {
88 pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
89 }
90
91 wxWindowDCImpl::SetPen( pen );
92}
93
94void wxMemoryDCImpl::SetBrush( const wxBrush& brushOrig )
95{
96 wxBrush brush( brushOrig );
97 if ( m_selected.IsOk() &&
98 m_selected.GetDepth() == 1 &&
99 (brush != *wxTRANSPARENT_BRUSH) )
100 {
101 brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE);
102 }
103
104 wxWindowDCImpl::SetBrush( brush );
105}
106
107void wxMemoryDCImpl::SetBackground( const wxBrush& brushOrig )
108{
109 wxBrush brush(brushOrig);
110
111 if ( m_selected.IsOk() &&
112 m_selected.GetDepth() == 1 &&
113 (brush != *wxTRANSPARENT_BRUSH) )
114 {
115 brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
116 }
117
118 wxWindowDCImpl::SetBackground( brush );
119}
120
121void wxMemoryDCImpl::SetTextForeground( const wxColour& col )
122{
123 if ( m_selected.IsOk() && m_selected.GetDepth() == 1 )
124 wxWindowDCImpl::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE);
125 else
126 wxWindowDCImpl::SetTextForeground( col );
127}
128
129void wxMemoryDCImpl::SetTextBackground( const wxColour &col )
130{
131 if (m_selected.IsOk() && m_selected.GetDepth() == 1)
132 wxWindowDCImpl::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE );
133 else
134 wxWindowDCImpl::SetTextBackground( col );
135}
136
137void wxMemoryDCImpl::DoGetSize( int *width, int *height ) const
138{
139 if (m_selected.IsOk())
140 {
141 if (width) (*width) = m_selected.GetWidth();
142 if (height) (*height) = m_selected.GetHeight();
143 }
144 else
145 {
146 if (width) (*width) = 0;
147 if (height) (*height) = 0;
148 }
149}
150
151wxBitmap wxMemoryDCImpl::DoGetAsBitmap(const wxRect *subrect) const
152{
153 wxBitmap bmp = GetSelectedBitmap();
154 return subrect ? bmp.GetSubBitmap(*subrect) : bmp;
155}
156
157const wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() const
158{
159 return m_selected;
160}
161
162wxBitmap& wxMemoryDCImpl::GetSelectedBitmap()
163{
164 return m_selected;
165}
166
167void* wxMemoryDCImpl::GetHandle() const
168{
169 const wxBitmap& bmp = GetSelectedBitmap();
170 return bmp.GetPixmap();
171}