]> git.saurik.com Git - wxWidgets.git/blob - src/mac/carbon/dcmemory.cpp
moved win_gtk.h header to wx/gtk/private, it's for internal use only
[wxWidgets.git] / src / mac / carbon / dcmemory.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/mac/carbon/dcmemory.cpp
3 // Purpose: wxMemoryDC class
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #include "wx/dcmemory.h"
15 #include "wx/graphics.h"
16
17 #include "wx/mac/private.h"
18
19 //-----------------------------------------------------------------------------
20 // wxMemoryDCImpl
21 //-----------------------------------------------------------------------------
22
23 IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl,wxPaintDCImpl)
24
25
26 wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner )
27 : wxPaintDCImpl( owner )
28 {
29 Init();
30 }
31
32 wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap )
33 : wxPaintDCImpl( owner )
34 {
35 Init();
36 DoSelect(bitmap);
37 }
38
39 wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC * WXUNUSED(dc) )
40 : wxPaintDCImpl( owner )
41 {
42 Init();
43 }
44
45 void wxMemoryDCImpl::Init()
46 {
47 m_ok = true;
48 SetBackground(*wxWHITE_BRUSH);
49 SetBrush(*wxWHITE_BRUSH);
50 SetPen(*wxBLACK_PEN);
51 SetFont(*wxNORMAL_FONT);
52 m_ok = false;
53 }
54
55 wxMemoryDCImpl::~wxMemoryDCImpl()
56 {
57 if ( m_selected.Ok() )
58 {
59 m_selected.EndRawAccess() ;
60 delete m_graphicContext ;
61 m_graphicContext = NULL ;
62 }
63 }
64
65 void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
66 {
67 if ( m_selected.Ok() )
68 {
69 m_selected.EndRawAccess() ;
70 delete m_graphicContext ;
71 m_graphicContext = NULL ;
72 }
73
74 m_selected = bitmap;
75 if (m_selected.Ok())
76 {
77 if ( m_selected.GetDepth() != 1 )
78 m_selected.UseAlpha() ;
79 m_selected.BeginRawAccess() ;
80 m_width = bitmap.GetWidth();
81 m_height = bitmap.GetHeight();
82 CGColorSpaceRef genericColorSpace = wxMacGetGenericRGBColorSpace();
83 CGContextRef bmCtx = (CGContextRef) m_selected.GetHBITMAP();
84
85 if ( bmCtx )
86 {
87 CGContextSetFillColorSpace( bmCtx, genericColorSpace );
88 CGContextSetStrokeColorSpace( bmCtx, genericColorSpace );
89 SetGraphicsContext( wxGraphicsContext::CreateFromNative( bmCtx ) );
90 }
91 m_ok = (m_graphicContext != NULL) ;
92 }
93 else
94 {
95 m_ok = false;
96 }
97 }
98
99 void wxMemoryDCImpl::DoGetSize( int *width, int *height ) const
100 {
101 if (m_selected.Ok())
102 {
103 if (width)
104 (*width) = m_selected.GetWidth();
105 if (height)
106 (*height) = m_selected.GetHeight();
107 }
108 else
109 {
110 if (width)
111 (*width) = 0;
112 if (height)
113 (*height) = 0;
114 }
115 }