Fix recreating of wxBitmapComboBox using untyped client data.
[wxWidgets.git] / src / os2 / dcmemory.cpp
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0e320a79 1/////////////////////////////////////////////////////////////////////////////
670f9935 2// Name: src/os2/dcmemory.cpp
0e320a79 3// Purpose: wxMemoryDC class
fb46a9a6 4// Author: David Webster
0e320a79 5// Modified by:
fb46a9a6 6// Created: 10/14/99
fb46a9a6 7// Copyright: (c) David Webster
65571936 8// Licence: wxWindows licence
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9/////////////////////////////////////////////////////////////////////////////
10
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11// For compilers that support precompilation, includes "wx.h".
12#include "wx/wxprec.h"
13
f38924e8 14#include "wx/dcmemory.h"
2c24e7ad 15#include "wx/os2/dcmemory.h"
f38924e8 16
fb46a9a6 17#ifndef WX_PRECOMP
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18 #include "wx/utils.h"
19 #include "wx/app.h"
20 #include "wx/log.h"
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21#endif
22
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23#include "wx/os2/private.h"
24
2c24e7ad 25IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxPMDCImpl)
0e320a79 26
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27/////////////////////////////////////////////////////////////////////////////
28// Memory DC
29/////////////////////////////////////////////////////////////////////////////
0e320a79 30
03647350 31wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner )
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32 : wxPMDCImpl( owner )
33{
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34 CreateCompatible(NULL);
35 Init();
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36}
37
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38wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap )
39 : wxPMDCImpl( owner )
40{
41 CreateCompatible(NULL);
42 Init();
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43 DoSelect(bitmap);
44}
45
46wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC *pOldDC)
03647350 47 : wxPMDCImpl( owner )
e1a688e4 48{
9a83f860 49 wxCHECK_RET( pOldDC, wxT("NULL dc in wxMemoryDC ctor") );
2c24e7ad 50
e1a688e4 51 CreateCompatible(pOldDC);
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52 Init();
53} // end of wxMemoryDC::wxMemoryDC
54
2c24e7ad 55void wxMemoryDCImpl::Init()
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56{
57 if (m_ok)
58 {
59 SetBrush(*wxWHITE_BRUSH);
60 SetPen(*wxBLACK_PEN);
61
62 // the background mode is only used for text background and is set in
63 // DrawText() to OPAQUE as required, otherwise always TRANSPARENT
64 ::GpiSetBackMix( GetHPS(), BM_LEAVEALONE );
65 }
1d0edc0f 66 memset(&m_vRclPaint, 0, sizeof(m_vRclPaint));
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67} // end of wxMemoryDC::Init
68
2c24e7ad 69bool wxMemoryDCImpl::CreateCompatible( wxDC* WXUNUSED(pDC) )
0e320a79 70{
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71 HDC hDC;
72 HPS hPS;
73 DEVOPENSTRUC vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
74 SIZEL vSize = {0, 0};
23122f8c 75
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76 //
77 // Create a memory device context
78 //
e1a688e4 79 hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
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80 if (hDC != DEV_ERROR)
81 {
82 hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
83 if (hPS != GPI_ERROR)
84 {
85 m_hPS = hPS;
86 m_hDC = hDC;
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87 m_ok = true;
88 m_bOwnsDC = true;
e1a688e4 89 //
77ffb593 90 // Set the wxWidgets color table
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91 //
92 ::GpiCreateLogColorTable( m_hPS
93 ,0L
94 ,LCOLF_CONSECRGB
95 ,0L
96 ,(LONG)wxTheColourDatabase->m_nSize
97 ,(PLONG)wxTheColourDatabase->m_palTable
98 );
99 ::GpiCreateLogColorTable( m_hPS
100 ,0L
101 ,LCOLF_RGB
102 ,0L
103 ,0L
104 ,NULL
105 );
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106 }
107 else
108 {
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109 m_hPS = NULLHANDLE;
110 m_hDC = NULLHANDLE;
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111 m_ok = false;
112 m_bOwnsDC = false;
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113 }
114 }
115 else
116 {
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117 m_hPS = NULLHANDLE;
118 m_hDC = NULLHANDLE;
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119 m_ok = false;
120 m_bOwnsDC = false;
23122f8c 121 }
23122f8c 122
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123 //
124 // As we created the DC, we must delete it in the dtor
125 //
6670f564 126 m_bOwnsDC = true;
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127 m_ok = m_hDC != 0;
128 return m_ok;
129} // end of wxMemoryDC::CreateCompatible
23122f8c 130
2c24e7ad 131void wxMemoryDCImpl::DoSelect(
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132 const wxBitmap& rBitmap
133)
0e320a79 134{
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135 //
136 // Select old bitmap out of the device context
137 //
138 if (m_hOldBitmap)
139 {
140 ::GpiSetBitmap(m_hPS, NULLHANDLE);
a1b806b9 141 if (m_vSelectedBitmap.IsOk())
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142 {
143 m_vSelectedBitmap.SetSelectedInto(NULL);
144 m_vSelectedBitmap = wxNullBitmap;
145 }
146 }
147
148 //
149 // Check for whether the bitmap is already selected into a device context
150 //
151 wxCHECK_RET( !rBitmap.GetSelectedInto() ||
2c24e7ad 152 (rBitmap.GetSelectedInto() == GetOwner()),
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153 wxT("Bitmap is selected in another wxMemoryDC, delete the first wxMemoryDC or use SelectObject(NULL)") );
154
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155 WXHBITMAP hBmp = rBitmap.GetHBITMAP();
156
157 if (!hBmp)
158 {
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159 //
160 // Bmps drawn to are upside down, so flip it before committing
161 //
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162 POINTL vPoint[4] = { {0, m_vSelectedBitmap.GetHeight()}
163 ,{m_vSelectedBitmap.GetWidth(), 0}
164 ,{0, 0}
165 ,{m_vSelectedBitmap.GetWidth(), m_vSelectedBitmap.GetHeight()}
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166 };
167
168
169 ::GpiBitBlt( m_hPS
170 ,m_hPS
171 ,4
172 ,vPoint
173 ,ROP_SRCCOPY
174 ,BBO_IGNORE
175 );
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176 m_vSelectedBitmap.SetSelectedInto(NULL);
177 }
fea35690 178
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179 m_vSelectedBitmap = rBitmap;
180
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181
182 if (!hBmp)
29172908 183 {
ad6bd870 184
29172908 185 m_hOldBitmap = (WXHBITMAP)::GpiSetBitmap(m_hPS, NULLHANDLE);
23122f8c 186 return;
29172908 187 }
2c24e7ad 188 m_vSelectedBitmap.SetSelectedInto(GetOwner());
29172908 189 m_hOldBitmap = (WXHBITMAP)::GpiSetBitmap(m_hPS, (HBITMAP)hBmp);
23122f8c 190
29172908 191 if (m_hOldBitmap == HBM_ERROR)
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192 {
193 wxLogLastError(wxT("SelectObject(memDC, bitmap)"));
194 wxFAIL_MSG(wxT("Couldn't select a bitmap into wxMemoryDC"));
195 }
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196} // end of wxMemoryDC::SelectObject
197
2c24e7ad 198void wxMemoryDCImpl::DoGetSize(
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199 int* pWidth
200, int* pHeight
201) const
0e320a79 202{
a1b806b9 203 if (!m_vSelectedBitmap.IsOk())
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204 {
205 *pWidth = 0;
206 *pHeight = 0;
207 return;
208 }
209 *pWidth = m_vSelectedBitmap.GetWidth();
210 *pHeight = m_vSelectedBitmap.GetHeight();
211} // end of wxMemoryDC::DoGetSize