539 lines
15 KiB
C
539 lines
15 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 "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 * dc->virtual_size.cx /
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(dc->virtual_res.cx * dc->wndExtX));
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double ydim = fabs((double)dc->vportExtY * dc->virtual_size.cy /
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(dc->virtual_res.cy * 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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* null driver fallback implementations
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*/
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BOOL CDECL nulldrv_OffsetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
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{
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DC *dc = get_nulldrv_dc( dev );
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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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return TRUE;
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}
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BOOL CDECL nulldrv_OffsetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
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{
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DC *dc = get_nulldrv_dc( dev );
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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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return TRUE;
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}
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BOOL CDECL nulldrv_ScaleViewportExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom,
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SIZE *size )
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{
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DC *dc = get_nulldrv_dc( dev );
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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) return TRUE;
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if (!x_num || !x_denom || !y_num || !y_denom) return FALSE;
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dc->vportExtX = (dc->vportExtX * x_num) / x_denom;
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dc->vportExtY = (dc->vportExtY * y_num) / y_denom;
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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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return TRUE;
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}
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BOOL CDECL nulldrv_ScaleWindowExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom,
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SIZE *size )
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{
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DC *dc = get_nulldrv_dc( dev );
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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) return TRUE;
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if (!x_num || !x_denom || !y_num || !y_denom) return FALSE;
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dc->wndExtX = (dc->wndExtX * x_num) / x_denom;
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dc->wndExtY = (dc->wndExtY * y_num) / y_denom;
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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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return TRUE;
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}
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INT CDECL nulldrv_SetMapMode( PHYSDEV dev, INT mode )
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{
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DC *dc = get_nulldrv_dc( dev );
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INT ret = dc->MapMode;
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INT horzSize, vertSize, horzRes, vertRes;
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if (mode == dc->MapMode && (mode == MM_ISOTROPIC || mode == MM_ANISOTROPIC)) return ret;
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horzSize = dc->virtual_size.cx;
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vertSize = dc->virtual_size.cy;
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horzRes = dc->virtual_res.cx;
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vertRes = dc->virtual_res.cy;
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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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return 0;
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}
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/* RTL layout is always MM_ANISOTROPIC */
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if (!(dc->layout & LAYOUT_RTL)) dc->MapMode = mode;
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DC_UpdateXforms( dc );
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return ret;
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}
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BOOL CDECL nulldrv_SetViewportExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size )
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{
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DC *dc = get_nulldrv_dc( dev );
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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) return TRUE;
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if (!cx || !cy) return FALSE;
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dc->vportExtX = cx;
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dc->vportExtY = cy;
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if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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DC_UpdateXforms( dc );
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return TRUE;
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}
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BOOL CDECL nulldrv_SetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
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{
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DC *dc = get_nulldrv_dc( dev );
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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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return TRUE;
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}
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BOOL CDECL nulldrv_SetWindowExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size )
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{
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DC *dc = get_nulldrv_dc( dev );
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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) return TRUE;
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if (!cx || !cy) return FALSE;
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dc->wndExtX = cx;
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dc->wndExtY = cy;
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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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return TRUE;
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}
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BOOL CDECL nulldrv_SetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
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{
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DC *dc = get_nulldrv_dc( dev );
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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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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 (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 = 0;
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DC * dc = get_dc_ptr( hdc );
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TRACE("%p %d\n", hdc, mode );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetMapMode );
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ret = physdev->funcs->pSetMapMode( physdev, mode );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetViewportExtEx );
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ret = physdev->funcs->pSetViewportExtEx( physdev, x, y, size );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetViewportOrgEx );
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ret = physdev->funcs->pSetViewportOrgEx( physdev, x, y, pt );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetWindowExtEx );
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ret = physdev->funcs->pSetWindowExtEx( physdev, x, y, size );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetWindowOrgEx );
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ret = physdev->funcs->pSetWindowOrgEx( physdev, x, y, pt );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pOffsetViewportOrgEx );
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ret = physdev->funcs->pOffsetViewportOrgEx( physdev, x, y, pt );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pOffsetWindowOrgEx );
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ret = physdev->funcs->pOffsetWindowOrgEx( physdev, x, y, pt );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pScaleViewportExtEx );
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ret = physdev->funcs->pScaleViewportExtEx( physdev, xNum, xDenom, yNum, yDenom, size );
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release_dc_ptr( dc );
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}
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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 = FALSE;
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DC * dc = get_dc_ptr( hdc );
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if (dc)
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pScaleWindowExtEx );
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ret = physdev->funcs->pScaleWindowExtEx( physdev, xNum, xDenom, yNum, yDenom, size );
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release_dc_ptr( dc );
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}
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return ret;
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}
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/***********************************************************************
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* SetVirtualResolution (GDI32.@)
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*
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* Undocumented on msdn.
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*
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* Changes the values of screen size in pixels and millimeters used by
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* the mapping mode functions.
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*
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* PARAMS
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* hdc [I] Device context
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* horz_res [I] Width in pixels (equivalent to HORZRES device cap).
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* vert_res [I] Height in pixels (equivalent to VERTRES device cap).
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* horz_size [I] Width in mm (equivalent to HORZSIZE device cap).
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* vert_size [I] Height in mm (equivalent to VERTSIZE device cap).
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*
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* RETURNS
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* TRUE if successful.
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* FALSE if any (but not all) of the last four params are zero.
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*
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* NOTES
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* This doesn't change the values returned by GetDeviceCaps, just the
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* scaling of the mapping modes.
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*
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* Calling with the last four params equal to zero sets the values
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* back to their defaults obtained by calls to GetDeviceCaps.
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*/
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BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res,
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DWORD horz_size, DWORD vert_size)
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{
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DC * dc;
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TRACE("(%p %d %d %d %d)\n", hdc, horz_res, vert_res, horz_size, vert_size);
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if(horz_res == 0 && vert_res == 0 && horz_size == 0 && vert_size == 0)
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{
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horz_res = GetDeviceCaps(hdc, HORZRES);
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vert_res = GetDeviceCaps(hdc, VERTRES);
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horz_size = GetDeviceCaps(hdc, HORZSIZE);
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vert_size = GetDeviceCaps(hdc, VERTSIZE);
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}
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else if(horz_res == 0 || vert_res == 0 || horz_size == 0 || vert_size == 0)
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return FALSE;
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dc = get_dc_ptr( hdc );
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if (!dc) return FALSE;
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dc->virtual_res.cx = horz_res;
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dc->virtual_res.cy = vert_res;
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dc->virtual_size.cx = horz_size;
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dc->virtual_size.cy = vert_size;
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release_dc_ptr( dc );
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return TRUE;
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}
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