293 lines
7.8 KiB
C++
293 lines
7.8 KiB
C++
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/****************************************************************************
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ROTATE.c
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The ROTATE module handles rotating a rectangular object.
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****************************************************************************/
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#include "stdafx.h"
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#include "global.h"
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#include "pbrush.h"
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#include "pbrusdoc.h"
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#include "imgwnd.h"
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#include "imgbrush.h"
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#include "imgsuprt.h"
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#include "bmobject.h"
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#include "undo.h"
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#include "props.h"
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#ifdef _DEBUG
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#undef THIS_FILE
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static CHAR BASED_CODE THIS_FILE[] = __FILE__;
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#endif
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#include "memtrace.h"
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/***************************************************************************/
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void CImgWnd::CmdRot90()
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{
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HideBrush();
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CRect rotRect;
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HDC hdcSrc;
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CPalette* ppalOld = NULL;
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if (! theImgBrush.m_pImg && ! g_bCustomBrush)
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{
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rotRect.SetRect( 0, 0, m_pImg->cxWidth, m_pImg->cyHeight );
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hdcSrc = m_pImg->hDC;
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}
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else
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{
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PrepareForBrushChange( TRUE, TRUE );
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ppalOld = SetImgPalette( &theImgBrush.m_dc );
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hdcSrc = theImgBrush.m_dc.GetSafeHdc();
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rotRect = rcDragBrush;
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rotRect.right -= 1;
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rotRect.bottom -= 1;
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}
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ASSERT( hdcSrc != NULL);
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if (rotRect.IsRectEmpty() || ! hdcSrc)
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{
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if (ppalOld)
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theImgBrush.m_dc.SelectPalette( ppalOld, FALSE );
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return;
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}
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int iWidth = rotRect.Width();
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int iHeight = rotRect.Height();
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CRect destRect( 0, 0, iHeight, iWidth );
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destRect.OffsetRect( rotRect.left + iWidth / 2 - iHeight / 2,
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rotRect.top + iHeight / 2 - iWidth / 2 );
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CBitmap bmRotated;
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CDC dcRotated;
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CDC* pdcImg = CDC::FromHandle( m_pImg->hDC );
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if (! bmRotated.CreateCompatibleBitmap( pdcImg, iHeight, iWidth )
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|| ! dcRotated.CreateCompatibleDC ( pdcImg ))
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{
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if (ppalOld)
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theImgBrush.m_dc.SelectPalette( ppalOld, FALSE );
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theApp.SetGdiEmergency( TRUE );
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return;
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}
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CBitmap* pbmOld = dcRotated.SelectObject( &bmRotated );
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CPalette* ppalRotated = SetImgPalette( &dcRotated );
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BeginWaitCursor();
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int iRow;
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int iCol;
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BOOL bDone = FALSE;
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// Need code here to get select RECT from the hdcSrc
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HDC rowDC = ::CreateCompatibleDC ( hdcSrc );
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HDC colDC = ::CreateCompatibleDC ( hdcSrc );
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HBITMAP hrowBM = ::CreateCompatibleBitmap( hdcSrc, iWidth, 1 );
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HBITMAP hcolBM = ::CreateCompatibleBitmap( hdcSrc, 1, iWidth );
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if (rowDC && colDC && hrowBM && hcolBM)
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{
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HBITMAP scolBM = (HBITMAP)::SelectObject( colDC, hcolBM );
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HBITMAP srowBM = (HBITMAP)::SelectObject( rowDC, hrowBM );
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::PatBlt( rowDC, 0, 0, iWidth, 1, BLACKNESS );
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::PatBlt( colDC, 0, 0, 1, iWidth, BLACKNESS );
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HPALETTE hpalRow = SetImgPalette( rowDC ); // save to replace later
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HPALETTE hpalCol = SetImgPalette( colDC ); // save to replace later
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::SelectObject( colDC, scolBM );
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::SelectObject( rowDC, srowBM );
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DWORD dwLen;
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LPSTR lpDibRow = (LPSTR) DibFromBitmap(
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hrowBM, DIB_RGB_COLORS, 24,
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theApp.m_pPalette, NULL, dwLen,
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m_pImg->cXPelsPerMeter, m_pImg->cYPelsPerMeter);
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LPSTR lpDibCol = (LPSTR) DibFromBitmap(
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hcolBM, DIB_RGB_COLORS, 24,
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theApp.m_pPalette, NULL, dwLen,
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m_pImg->cXPelsPerMeter, m_pImg->cYPelsPerMeter);
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if (lpDibRow && lpDibCol)
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{
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VOID* pBitsRow = FindDIBBits( lpDibRow );
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VOID* pBitsCol = FindDIBBits( lpDibCol );
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for (iRow = 0, iCol = iHeight - 1; iRow < iHeight; iRow++, iCol--)
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{
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::SelectObject( rowDC, hrowBM );
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::BitBlt( rowDC, 0, 0, iWidth, 1, hdcSrc, 0, iRow, SRCCOPY );
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::SelectObject( rowDC, srowBM );
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if (! GetDIBits( hdcSrc, hrowBM, 0, 1, pBitsRow, (LPBITMAPINFO)lpDibRow, DIB_RGB_COLORS ))
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break;
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LPBYTE pRow = (LPBYTE)pBitsRow;
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LPDWORD pCol = (LPDWORD)pBitsCol;
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union
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{
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DWORD pixel;
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char byte[sizeof( DWORD )];
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} u;
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u.byte[3] = 0;
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for (register int index = iWidth - 1; index >= 0; index--)
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{
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u.byte[0] = *pRow++;
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u.byte[1] = *pRow++;
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u.byte[2] = *pRow++;
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pCol[index] = u.pixel;
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}
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if (! SetDIBits( hdcSrc, hcolBM, 0, iWidth, pBitsCol, (LPBITMAPINFO)lpDibCol, DIB_RGB_COLORS ))
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break;
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::SelectObject( colDC, hcolBM );
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::BitBlt( dcRotated.m_hDC, iCol, 0, 1, iWidth, colDC, 0, 0, SRCCOPY );
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::SelectObject( colDC, scolBM );
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}
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bDone = (iRow == iHeight);
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if (! bDone)
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theApp.SetGdiEmergency( TRUE );
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}
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else
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theApp.SetMemoryEmergency( TRUE );
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if (lpDibRow)
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FreeDib( lpDibRow );
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if (lpDibCol)
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FreeDib( lpDibCol );
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if (hpalRow)
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::SelectPalette( rowDC, hpalRow, FALSE );
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if (hpalCol)
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::SelectPalette( colDC, hpalCol, FALSE );
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}
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else
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theApp.SetGdiEmergency( TRUE );
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// clean up
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if (rowDC)
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::DeleteDC( rowDC );
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if (colDC)
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::DeleteDC( colDC );
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if (hrowBM)
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::DeleteObject( hrowBM );
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if (hcolBM)
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::DeleteObject( hcolBM );
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EndWaitCursor();
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if (! bDone) // do the brute force method
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{
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if (ppalOld)
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theImgBrush.m_dc.SelectPalette( ppalOld, FALSE );
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if (ppalRotated)
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dcRotated.SelectPalette( ppalRotated, FALSE );
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dcRotated.SelectObject( pbmOld );
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dcRotated.DeleteDC();
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bmRotated.DeleteObject();
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return;
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}
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if (ppalOld)
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theImgBrush.m_dc.SelectPalette( ppalOld, FALSE );
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if ( theImgBrush.m_pImg
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&& ! theImgBrush.m_bFirstDrag || g_bCustomBrush)
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{
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if (ppalRotated)
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dcRotated.SelectPalette( ppalRotated, FALSE );
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dcRotated.SelectObject( pbmOld );
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CBitmap bmMask;
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if (! bmMask.CreateBitmap( iHeight, iWidth, 1, 1, NULL ))
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{
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theApp.SetMemoryEmergency( TRUE );
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return;
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}
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theImgBrush.m_dc.SelectObject( &bmRotated );
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theImgBrush.m_bitmap.DeleteObject();
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theImgBrush.m_bitmap.Attach( bmRotated.Detach() );
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theImgBrush.m_size.cx = iHeight;
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theImgBrush.m_size.cy = iWidth;
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VERIFY( theImgBrush.m_maskDC.SelectObject( &bmMask ) ==
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&theImgBrush.m_maskBitmap );
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theImgBrush.m_maskBitmap.DeleteObject();
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theImgBrush.m_maskBitmap.Attach( bmMask.Detach() );
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theImgBrush.RecalcMask( crRight );
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MoveBrush( destRect );
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}
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else
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{
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theUndo.BeginUndo( TEXT("Resize Bitmap") );
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m_pImg->m_pBitmapObj->SetSizeProp( P_Size, CSize( iHeight, iWidth ) );
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m_pImg->cxWidth = iHeight;
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m_pImg->cyHeight = iWidth;
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SetUndo( m_pImg );
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pdcImg->BitBlt( 0, 0, m_pImg->cxWidth, m_pImg->cyHeight, &dcRotated, 0, 0, SRCCOPY );
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dcRotated.SelectObject( pbmOld );
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if (ppalRotated)
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dcRotated.SelectPalette( ppalRotated, FALSE );
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bmRotated.DeleteObject();
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InvalImgRect ( m_pImg, &rotRect );
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CommitImgRect( m_pImg, &rotRect );
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FinishUndo ( rotRect );
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theUndo.EndUndo();
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DirtyImg ( m_pImg );
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InvalidateRect( NULL );
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UpdateWindow();
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}
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dcRotated.DeleteDC();
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}
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/***************************************************************************/
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