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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk1/dcmemory.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Copyright: (c) 1998 Robert Roebling
6 // Licence: wxWindows licence
7 /////////////////////////////////////////////////////////////////////////////
8
9 // For compilers that support precompilation, includes "wx.h".
10 #include "wx/wxprec.h"
11
12 #include "wx/gtk1/dcmemory.h"
13
14 #include <gdk/gdk.h>
15 #include <gtk/gtk.h>
16
17 //-----------------------------------------------------------------------------
18 // wxMemoryDCImpl
19 //-----------------------------------------------------------------------------
20
21 IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxWindowDCImpl)
22
23 void wxMemoryDCImpl::Init()
24 {
25 m_ok = false;
26
27 m_cmap = gtk_widget_get_default_colormap();
28 }
29
30 wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC *owner, wxDC *WXUNUSED(dc))
31 : wxWindowDCImpl(owner)
32 {
33 Init();
34 }
35
36 wxMemoryDCImpl::~wxMemoryDCImpl()
37 {
38 }
39
40 void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
41 {
42 Destroy();
43
44 m_selected = bitmap;
45 if (m_selected.IsOk())
46 {
47 if (m_selected.GetPixmap())
48 {
49 m_window = m_selected.GetPixmap();
50 }
51 else
52 {
53 m_window = m_selected.GetBitmap();
54 }
55
56 m_isMemDC = true;
57
58 SetUpDC();
59 }
60 else
61 {
62 m_ok = false;
63 m_window = NULL;
64 }
65 }
66
67 void wxMemoryDCImpl::SetPen( const wxPen& penOrig )
68 {
69 wxPen pen( penOrig );
70 if ( m_selected.IsOk() &&
71 m_selected.GetBitmap() &&
72 (pen != *wxTRANSPARENT_PEN) )
73 {
74 pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
75 }
76
77 wxWindowDCImpl::SetPen( pen );
78 }
79
80 void wxMemoryDCImpl::SetBrush( const wxBrush& brushOrig )
81 {
82 wxBrush brush( brushOrig );
83 if ( m_selected.IsOk() &&
84 m_selected.GetBitmap() &&
85 (brush != *wxTRANSPARENT_BRUSH) )
86 {
87 brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE);
88 }
89
90 wxWindowDCImpl::SetBrush( brush );
91 }
92
93 void wxMemoryDCImpl::SetBackground( const wxBrush& brushOrig )
94 {
95 wxBrush brush(brushOrig);
96
97 if ( m_selected.IsOk() &&
98 m_selected.GetBitmap() &&
99 (brush != *wxTRANSPARENT_BRUSH) )
100 {
101 brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
102 }
103
104 wxWindowDCImpl::SetBackground( brush );
105 }
106
107 void wxMemoryDCImpl::SetTextForeground( const wxColour& col )
108 {
109 if ( m_selected.IsOk() && m_selected.GetBitmap() )
110 {
111 wxWindowDCImpl::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE);
112 }
113 else
114 {
115 wxWindowDCImpl::SetTextForeground( col );
116 }
117 }
118
119 void wxMemoryDCImpl::SetTextBackground( const wxColour &col )
120 {
121 if (m_selected.IsOk() && m_selected.GetBitmap())
122 {
123 wxWindowDCImpl::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE );
124 }
125 else
126 {
127 wxWindowDCImpl::SetTextBackground( col );
128 }
129 }
130
131 void wxMemoryDCImpl::DoGetSize( int *width, int *height ) const
132 {
133 if (m_selected.IsOk())
134 {
135 if (width) (*width) = m_selected.GetWidth();
136 if (height) (*height) = m_selected.GetHeight();
137 }
138 else
139 {
140 if (width) (*width) = 0;
141 if (height) (*height) = 0;
142 }
143 }