522 lines
13 KiB
C
522 lines
13 KiB
C
/*
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* GDI mapping mode functions
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*
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* Copyright 1993 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "wownt32.h"
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#include "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dc);
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/***********************************************************************
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* MAPPING_FixIsotropic
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*
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* Fix viewport extensions for isotropic mode.
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*/
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static void MAPPING_FixIsotropic( DC * dc )
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{
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double xdim = fabs((double)dc->vportExtX * GetDeviceCaps( dc->hSelf, HORZSIZE ) /
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(GetDeviceCaps( dc->hSelf, HORZRES ) * dc->wndExtX));
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double ydim = fabs((double)dc->vportExtY * GetDeviceCaps( dc->hSelf, VERTSIZE ) /
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(GetDeviceCaps( dc->hSelf, VERTRES ) * dc->wndExtY));
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if (xdim > ydim)
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{
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INT mincx = (dc->vportExtX >= 0) ? 1 : -1;
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dc->vportExtX = floor(dc->vportExtX * ydim / xdim + 0.5);
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if (!dc->vportExtX) dc->vportExtX = mincx;
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}
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else
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{
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INT mincy = (dc->vportExtY >= 0) ? 1 : -1;
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dc->vportExtY = floor(dc->vportExtY * xdim / ydim + 0.5);
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if (!dc->vportExtY) dc->vportExtY = mincy;
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}
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}
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/***********************************************************************
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* DPtoLP (GDI.67)
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*/
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BOOL16 WINAPI DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
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{
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DC * dc = get_dc_ptr( HDC_32(hdc) );
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if (!dc) return FALSE;
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while (count--)
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{
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points->x = MulDiv( points->x - dc->vportOrgX, dc->wndExtX, dc->vportExtX ) + dc->wndOrgX;
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points->y = MulDiv( points->y - dc->vportOrgY, dc->wndExtY, dc->vportExtY ) + dc->wndOrgY;
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points++;
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}
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release_dc_ptr( dc );
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return TRUE;
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}
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/***********************************************************************
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* DPtoLP (GDI32.@)
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*/
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BOOL WINAPI DPtoLP( HDC hdc, LPPOINT points, INT count )
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{
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->vport2WorldValid)
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{
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while (count--)
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{
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double x = points->x;
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double y = points->y;
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points->x = floor( x * dc->xformVport2World.eM11 +
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y * dc->xformVport2World.eM21 +
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dc->xformVport2World.eDx + 0.5 );
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points->y = floor( x * dc->xformVport2World.eM12 +
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y * dc->xformVport2World.eM22 +
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dc->xformVport2World.eDy + 0.5 );
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points++;
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}
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}
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release_dc_ptr( dc );
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return (count < 0);
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}
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/***********************************************************************
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* LPtoDP (GDI.99)
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*/
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BOOL16 WINAPI LPtoDP16( HDC16 hdc, LPPOINT16 points, INT16 count )
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{
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DC * dc = get_dc_ptr( HDC_32(hdc) );
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if (!dc) return FALSE;
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while (count--)
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{
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points->x = MulDiv( points->x - dc->wndOrgX, dc->vportExtX, dc->wndExtX ) + dc->vportOrgX;
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points->y = MulDiv( points->y - dc->wndOrgY, dc->vportExtY, dc->wndExtY ) + dc->vportOrgY;
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points++;
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}
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release_dc_ptr( dc );
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return TRUE;
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}
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/***********************************************************************
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* LPtoDP (GDI32.@)
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*/
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BOOL WINAPI LPtoDP( HDC hdc, LPPOINT points, INT count )
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{
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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while (count--)
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{
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double x = points->x;
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double y = points->y;
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points->x = floor( x * dc->xformWorld2Vport.eM11 +
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y * dc->xformWorld2Vport.eM21 +
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dc->xformWorld2Vport.eDx + 0.5 );
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points->y = floor( x * dc->xformWorld2Vport.eM12 +
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y * dc->xformWorld2Vport.eM22 +
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dc->xformWorld2Vport.eDy + 0.5 );
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points++;
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}
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release_dc_ptr( dc );
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return TRUE;
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}
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/***********************************************************************
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* SetMapMode (GDI32.@)
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*/
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INT WINAPI SetMapMode( HDC hdc, INT mode )
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{
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INT ret;
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INT horzSize, vertSize, horzRes, vertRes;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return 0;
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if (dc->funcs->pSetMapMode)
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{
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if((ret = dc->funcs->pSetMapMode( dc->physDev, mode )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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TRACE("%p %d\n", hdc, mode );
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ret = dc->MapMode;
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if (mode == dc->MapMode && (mode == MM_ISOTROPIC || mode == MM_ANISOTROPIC))
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goto done;
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horzSize = GetDeviceCaps( hdc, HORZSIZE );
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vertSize = GetDeviceCaps( hdc, VERTSIZE );
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horzRes = GetDeviceCaps( hdc, HORZRES );
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vertRes = GetDeviceCaps( hdc, VERTRES );
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switch(mode)
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{
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case MM_TEXT:
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dc->wndExtX = 1;
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dc->wndExtY = 1;
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dc->vportExtX = 1;
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dc->vportExtY = 1;
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break;
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case MM_LOMETRIC:
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case MM_ISOTROPIC:
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dc->wndExtX = horzSize * 10;
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dc->wndExtY = vertSize * 10;
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dc->vportExtX = horzRes;
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dc->vportExtY = -vertRes;
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break;
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case MM_HIMETRIC:
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dc->wndExtX = horzSize * 100;
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dc->wndExtY = vertSize * 100;
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dc->vportExtX = horzRes;
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dc->vportExtY = -vertRes;
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break;
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case MM_LOENGLISH:
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dc->wndExtX = MulDiv(1000, horzSize, 254);
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dc->wndExtY = MulDiv(1000, vertSize, 254);
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dc->vportExtX = horzRes;
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dc->vportExtY = -vertRes;
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break;
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case MM_HIENGLISH:
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dc->wndExtX = MulDiv(10000, horzSize, 254);
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dc->wndExtY = MulDiv(10000, vertSize, 254);
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dc->vportExtX = horzRes;
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dc->vportExtY = -vertRes;
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break;
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case MM_TWIPS:
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dc->wndExtX = MulDiv(14400, horzSize, 254);
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dc->wndExtY = MulDiv(14400, vertSize, 254);
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dc->vportExtX = horzRes;
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dc->vportExtY = -vertRes;
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break;
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case MM_ANISOTROPIC:
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break;
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default:
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goto done;
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}
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dc->MapMode = mode;
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* SetViewportExtEx (GDI32.@)
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*/
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BOOL WINAPI SetViewportExtEx( HDC hdc, INT x, INT y, LPSIZE size )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pSetViewportExt)
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{
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if((ret = dc->funcs->pSetViewportExt( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (size)
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{
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size->cx = dc->vportExtX;
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size->cy = dc->vportExtY;
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}
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if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
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goto done;
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if (!x || !y)
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{
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ret = FALSE;
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goto done;
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}
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dc->vportExtX = x;
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dc->vportExtY = y;
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if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* SetViewportOrgEx (GDI32.@)
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*/
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BOOL WINAPI SetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pSetViewportOrg)
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{
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if((ret = dc->funcs->pSetViewportOrg( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (pt)
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{
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pt->x = dc->vportOrgX;
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pt->y = dc->vportOrgY;
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}
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dc->vportOrgX = x;
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dc->vportOrgY = y;
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* SetWindowExtEx (GDI32.@)
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*/
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BOOL WINAPI SetWindowExtEx( HDC hdc, INT x, INT y, LPSIZE size )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pSetWindowExt)
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{
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if((ret = dc->funcs->pSetWindowExt( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (size)
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{
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size->cx = dc->wndExtX;
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size->cy = dc->wndExtY;
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}
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if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
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goto done;
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if (!x || !y)
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{
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ret = FALSE;
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goto done;
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}
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dc->wndExtX = x;
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dc->wndExtY = y;
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/* The API docs say that you should call SetWindowExtEx before
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SetViewportExtEx. This advice does not imply that Windows
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doesn't ensure the isotropic mapping after SetWindowExtEx! */
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if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* SetWindowOrgEx (GDI32.@)
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*/
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BOOL WINAPI SetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pSetWindowOrg)
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{
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if((ret = dc->funcs->pSetWindowOrg( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (pt)
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{
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pt->x = dc->wndOrgX;
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pt->y = dc->wndOrgY;
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}
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dc->wndOrgX = x;
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dc->wndOrgY = y;
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* OffsetViewportOrgEx (GDI32.@)
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*/
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BOOL WINAPI OffsetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt)
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pOffsetViewportOrg)
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{
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if((ret = dc->funcs->pOffsetViewportOrg( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (pt)
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{
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pt->x = dc->vportOrgX;
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pt->y = dc->vportOrgY;
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}
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dc->vportOrgX += x;
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dc->vportOrgY += y;
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* OffsetWindowOrgEx (GDI32.@)
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*/
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BOOL WINAPI OffsetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pOffsetWindowOrg)
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{
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if((ret = dc->funcs->pOffsetWindowOrg( dc->physDev, x, y )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (pt)
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{
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pt->x = dc->wndOrgX;
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pt->y = dc->wndOrgY;
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}
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dc->wndOrgX += x;
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dc->wndOrgY += y;
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* ScaleViewportExtEx (GDI32.@)
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*/
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BOOL WINAPI ScaleViewportExtEx( HDC hdc, INT xNum, INT xDenom,
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INT yNum, INT yDenom, LPSIZE size )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pScaleViewportExt)
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{
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if((ret = dc->funcs->pScaleViewportExt( dc->physDev, xNum, xDenom, yNum, yDenom )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (size)
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{
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size->cx = dc->vportExtX;
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size->cy = dc->vportExtY;
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}
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if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
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goto done;
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if (!xNum || !xDenom || !xNum || !yDenom)
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{
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ret = FALSE;
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goto done;
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}
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dc->vportExtX = (dc->vportExtX * xNum) / xDenom;
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dc->vportExtY = (dc->vportExtY * yNum) / yDenom;
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if (dc->vportExtX == 0) dc->vportExtX = 1;
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if (dc->vportExtY == 0) dc->vportExtY = 1;
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if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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}
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/***********************************************************************
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* ScaleWindowExtEx (GDI32.@)
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*/
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BOOL WINAPI ScaleWindowExtEx( HDC hdc, INT xNum, INT xDenom,
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INT yNum, INT yDenom, LPSIZE size )
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{
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INT ret = TRUE;
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DC * dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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if (dc->funcs->pScaleWindowExt)
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{
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if((ret = dc->funcs->pScaleWindowExt( dc->physDev, xNum, xDenom, yNum, yDenom )) != TRUE)
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{
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if(ret == GDI_NO_MORE_WORK)
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ret = TRUE;
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goto done;
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}
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}
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if (size)
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{
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size->cx = dc->wndExtX;
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size->cy = dc->wndExtY;
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}
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if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
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goto done;
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if (!xNum || !xDenom || !xNum || !yDenom)
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{
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ret = FALSE;
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goto done;
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}
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dc->wndExtX = (dc->wndExtX * xNum) / xDenom;
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dc->wndExtY = (dc->wndExtY * yNum) / yDenom;
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if (dc->wndExtX == 0) dc->wndExtX = 1;
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if (dc->wndExtY == 0) dc->wndExtY = 1;
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if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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DC_UpdateXforms( dc );
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done:
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release_dc_ptr( dc );
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return ret;
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|
}
|