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