/////////////////////////////////////////////////////////////////////////////
// Name: dcmemory.cpp
// Purpose: wxMemoryDC class
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: 01/02/97
+// Created: 10/14/99
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
-// Licence: wxWindows licence
+// Copyright: (c) David Webster
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "dcmemory.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifndef WX_PRECOMP
+#include "wx/utils.h"
+#include "wx/app.h"
+#include "wx/log.h"
#endif
+#include "wx/os2/private.h"
+
#include "wx/dcmemory.h"
-//-----------------------------------------------------------------------------
-// wxMemoryDC
-//-----------------------------------------------------------------------------
+IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
-IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
+/////////////////////////////////////////////////////////////////////////////
+// Memory DC
+/////////////////////////////////////////////////////////////////////////////
wxMemoryDC::wxMemoryDC(void)
{
- m_ok = FALSE;
-};
+ CreateCompatible(NULL);
+ Init();
+} // end of wxMemoryDC::wxMemoryDC
+
+wxMemoryDC::wxMemoryDC(
+ wxDC* pOldDC
+)
+{
+ pOldDC->BeginDrawing();
+ CreateCompatible(pOldDC);
+ pOldDC->EndDrawing();
+ Init();
+} // end of wxMemoryDC::wxMemoryDC
-wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
+void wxMemoryDC::Init()
{
- m_ok = FALSE;
-};
+ if (m_ok)
+ {
+ SetBrush(*wxWHITE_BRUSH);
+ SetPen(*wxBLACK_PEN);
+
+ // the background mode is only used for text background and is set in
+ // DrawText() to OPAQUE as required, otherwise always TRANSPARENT
+ ::GpiSetBackMix( GetHPS(), BM_LEAVEALONE );
+ }
+ memset(&m_vRclPaint, 0, sizeof(m_vRclPaint));
+} // end of wxMemoryDC::Init
+
+bool wxMemoryDC::CreateCompatible(
+ wxDC* pDC
+)
+{
+ HDC hDC;
+ HPS hPS;
+ DEVOPENSTRUC vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
+ SIZEL vSize = {0, 0};
+
+ //
+ // Create a memory device context
+ //
+ hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
+ if (hDC != DEV_ERROR)
+ {
+ hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
+ if (hPS != GPI_ERROR)
+ {
+ m_hPS = hPS;
+ m_hDC = hDC;
+ m_ok = TRUE;
+ m_bOwnsDC = TRUE;
+ //
+ // Set the wxWindows color table
+ //
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_CONSECRGB
+ ,0L
+ ,(LONG)wxTheColourDatabase->m_nSize
+ ,(PLONG)wxTheColourDatabase->m_palTable
+ );
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_RGB
+ ,0L
+ ,0L
+ ,NULL
+ );
+ }
+ else
+ {
+ m_hPS = NULLHANDLE;
+ m_hDC = NULLHANDLE;
+ m_ok = FALSE;
+ m_bOwnsDC = FALSE;
+ }
+ }
+ else
+ {
+ m_hPS = NULLHANDLE;
+ m_hDC = NULLHANDLE;
+ m_ok = FALSE;
+ m_bOwnsDC = FALSE;
+ }
+
+ //
+ // As we created the DC, we must delete it in the dtor
+ //
+ m_bOwnsDC = TRUE;
+ m_ok = m_hDC != 0;
+ return m_ok;
+} // end of wxMemoryDC::CreateCompatible
-wxMemoryDC::~wxMemoryDC(void)
+void wxMemoryDC::SelectObject(
+ const wxBitmap& rBitmap
+)
{
-};
+ //
+ // Select old bitmap out of the device context
+ //
+ if (m_hOldBitmap)
+ {
+ ::GpiSetBitmap(m_hPS, NULLHANDLE);
+ if (m_vSelectedBitmap.Ok())
+ {
+ m_vSelectedBitmap.SetSelectedInto(NULL);
+ m_vSelectedBitmap = wxNullBitmap;
+ }
+ }
-void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
+ //
+ // Check for whether the bitmap is already selected into a device context
+ //
+ wxCHECK_RET( !rBitmap.GetSelectedInto() ||
+ (rBitmap.GetSelectedInto() == this),
+ wxT("Bitmap is selected in another wxMemoryDC, delete the first wxMemoryDC or use SelectObject(NULL)") );
+
+ m_vSelectedBitmap = rBitmap;
+
+ WXHBITMAP hBmp = rBitmap.GetHBITMAP();
+
+ if (!hBmp)
+ return;
+
+ m_vSelectedBitmap.SetSelectedInto(this);
+ hBmp = (WXHBITMAP)::GpiSetBitmap(m_hPS, (HBITMAP)hBmp);
+
+ if (hBmp == HBM_ERROR)
+ {
+ wxLogLastError(wxT("SelectObject(memDC, bitmap)"));
+ wxFAIL_MSG(wxT("Couldn't select a bitmap into wxMemoryDC"));
+ }
+ else if (!m_hOldBitmap)
+ {
+ m_hOldBitmap = hBmp;
+ }
+} // end of wxMemoryDC::SelectObject
+
+void wxMemoryDC::DoGetSize(
+ int* pWidth
+, int* pHeight
+) const
{
- m_selected = bitmap;
- if (m_selected.Ok())
- {
- }
- else
- {
- m_ok = FALSE;
- };
-};
-
-void wxMemoryDC::GetSize( int *width, int *height ) const
+ if (!m_vSelectedBitmap.Ok())
+ {
+ *pWidth = 0;
+ *pHeight = 0;
+ return;
+ }
+ *pWidth = m_vSelectedBitmap.GetWidth();
+ *pHeight = m_vSelectedBitmap.GetHeight();
+} // end of wxMemoryDC::DoGetSize
+
+void wxMemoryDC::DoDrawRectangle(
+ wxCoord vX
+, wxCoord vY
+, wxCoord vWidth
+, wxCoord vHeight
+)
{
- if (m_selected.Ok())
- {
- if (width) (*width) = m_selected.GetWidth();
- if (height) (*height) = m_selected.GetHeight();
- }
- else
- {
- if (width) (*width) = 0;
- if (height) (*height) = 0;
- };
-};
+ wxDC::DoDrawRectangle(vX, vY, vWidth, vHeight);
+
+ //
+ // Debug testing:
+ //
+ if (m_vSelectedBitmap.GetHBITMAP() != NULLHANDLE)
+ {
+ BITMAPINFOHEADER2 vHeader;
+ BITMAPINFO2 vInfo;
+
+ vHeader.cbFix = 16L;
+ if (::GpiQueryBitmapInfoHeader(m_vSelectedBitmap.GetHBITMAP(), &vHeader))
+ {
+ unsigned char* pucData = NULL;
+ unsigned char* pucBits;
+ int nBytesPerLine = vWidth * 3;
+ LONG lScans = 0L;
+ POINTL vPoint;
+ LONG lColor;
+
+ vInfo.cbFix = 16;
+ vInfo.cx = vHeader.cx;
+ vInfo.cy = vHeader.cy;
+ vInfo.cPlanes = vHeader.cPlanes;
+ vInfo.cBitCount = 24;
+ pucData = (unsigned char*)malloc(nBytesPerLine * m_vSelectedBitmap.GetHeight());
+ if ((lScans = ::GpiQueryBitmapBits( m_hPS
+ ,0L
+ ,(LONG)m_vSelectedBitmap.GetHeight()
+ ,(PBYTE)pucData
+ ,&vInfo
+ )) == GPI_ALTERROR)
+ {
+ ERRORID vError;
+ wxString sError;
+
+ vError = ::WinGetLastError(vHabmain);
+ sError = wxPMErrorToStr(vError);
+ }
+ pucBits = pucData;
+ for (int i = 0; i < m_vSelectedBitmap.GetHeight(); i++)
+ {
+ for (int j = vX; j < m_vSelectedBitmap.GetWidth(); j++)
+ {
+ if (i >= vY && j >= vX && i < vHeight && j < vWidth)
+ {
+ vPoint.x = j; vPoint.y = i;
+ if (i == vY || j == vX ||
+ i == m_vSelectedBitmap.GetWidth() -1 ||
+ j == m_vSelectedBitmap.GetHeight()
+ )
+ lColor = m_pen.GetColour().GetPixel();
+ else
+ lColor = m_brush.GetColour().GetPixel();
+ *(pucBits++) = (unsigned char)lColor;
+ *(pucBits++) = (unsigned char)(lColor >> 8);
+ *(pucBits++) = (unsigned char)(lColor >> 16);
+ }
+ else
+ pucBits += 3;
+ }
+ }
+ if ((lScans = ::GpiSetBitmapBits( m_hPS
+ ,0
+ ,(LONG)m_vSelectedBitmap.GetHeight()
+ ,(PBYTE)pucData
+ ,&vInfo
+ )) == GPI_ALTERROR)
+ {
+ ERRORID vError;
+ wxString sError;
+ vError = ::WinGetLastError(vHabmain);
+ sError = wxPMErrorToStr(vError);
+ }
+ free(pucData);
+ }
+ }
+} // end of wxMemoryDC::DoDrawRectangle
projects / wxWidgets.git / blobdiff