609 lines
16 KiB
C
609 lines
16 KiB
C
/*
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* Enhanced MetaFile driver graphics functions
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*
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* Copyright 1999 Huw D M Davies
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*/
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#include <stdlib.h>
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#include "gdi.h"
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#include "dc.h"
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#include "enhmetafiledrv.h"
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#include "heap.h"
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#include "debug.h"
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DEFAULT_DEBUG_CHANNEL(enhmetafile)
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/**********************************************************************
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* EMFDRV_MoveToEx
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*/
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BOOL
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EMFDRV_MoveToEx(DC *dc,INT x,INT y,LPPOINT pt)
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{
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EMRMOVETOEX emr;
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emr.emr.iType = EMR_MOVETOEX;
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emr.emr.nSize = sizeof(emr);
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emr.ptl.x = x;
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emr.ptl.y = y;
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if(!EMFDRV_WriteRecord( dc, &emr.emr ))
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return FALSE;
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if (pt) {
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pt->x = dc->w.CursPosX;
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pt->y = dc->w.CursPosY;
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}
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dc->w.CursPosX = x;
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dc->w.CursPosY = y;
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return TRUE;
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}
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/***********************************************************************
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* EMFDRV_LineTo
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*/
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BOOL
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EMFDRV_LineTo( DC *dc, INT x, INT y )
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{
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EMRLINETO emr;
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RECTL bounds;
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emr.emr.iType = EMR_LINETO;
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emr.emr.nSize = sizeof(emr);
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emr.ptl.x = x;
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emr.ptl.y = y;
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if(!EMFDRV_WriteRecord( dc, &emr.emr ))
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return FALSE;
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bounds.left = MIN(x, dc->w.CursPosX);
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bounds.top = MIN(y, dc->w.CursPosY);
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bounds.right = MAX(x, dc->w.CursPosX);
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bounds.bottom = MAX(y, dc->w.CursPosY);
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EMFDRV_UpdateBBox( dc, &bounds );
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dc->w.CursPosX = x;
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dc->w.CursPosY = y;
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return TRUE;
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}
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/***********************************************************************
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* EMFDRV_ArcChordPie
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*/
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static BOOL
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EMFDRV_ArcChordPie( DC *dc, INT left, INT top, INT right, INT bottom,
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INT xstart, INT ystart, INT xend, INT yend, DWORD iType )
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{
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INT temp, xCentre, yCentre, i;
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double angleStart, angleEnd;
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double xinterStart, yinterStart, xinterEnd, yinterEnd;
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EMRARC emr;
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RECTL bounds;
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if(left == right || top == bottom) return FALSE;
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if(left > right) {temp = left; left = right; right = temp;}
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if(top > bottom) {temp = top; top = bottom; bottom = temp;}
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right--;
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bottom--;
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emr.emr.iType = iType;
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emr.emr.nSize = sizeof(emr);
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emr.rclBox.left = left;
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emr.rclBox.top = top;
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emr.rclBox.right = right;
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emr.rclBox.bottom = bottom;
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emr.ptlStart.x = xstart;
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emr.ptlStart.y = ystart;
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emr.ptlEnd.x = xend;
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emr.ptlEnd.x = yend;
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/* Now calculate the BBox */
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xCentre = (left + right + 1) / 2;
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yCentre = (top + bottom + 1) / 2;
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xstart -= xCentre;
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ystart -= yCentre;
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xend -= xCentre;
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yend -= yCentre;
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/* invert y co-ords to get angle anti-clockwise from x-axis */
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angleStart = atan2( -(double)ystart, (double)xstart);
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angleEnd = atan2( -(double)yend, (double)xend);
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/* These are the intercepts of the start/end lines with the arc */
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xinterStart = (right - left + 1)/2 * cos(angleStart) + xCentre;
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yinterStart = -(bottom - top + 1)/2 * sin(angleStart) + yCentre;
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xinterEnd = (right - left + 1)/2 * cos(angleEnd) + xCentre;
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yinterEnd = -(bottom - top + 1)/2 * sin(angleEnd) + yCentre;
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if(angleStart < 0) angleStart += 2 * M_PI;
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if(angleEnd < 0) angleEnd += 2 * M_PI;
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if(angleEnd < angleStart) angleEnd += 2 * M_PI;
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bounds.left = MIN(xinterStart, xinterEnd);
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bounds.top = MIN(yinterStart, yinterEnd);
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bounds.right = MAX(xinterStart, xinterEnd);
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bounds.bottom = MAX(yinterStart, yinterEnd);
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for(i = 0; i <= 8; i++) {
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if(i * M_PI / 2 < angleStart) /* loop until we're past start */
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continue;
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if(i * M_PI / 2 > angleEnd) /* if we're past end we're finished */
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break;
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/* the arc touches the rectangle at the start of quadrant i, so adjust
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BBox to reflect this. */
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switch(i % 4) {
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case 0:
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bounds.right = right;
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break;
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case 1:
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bounds.top = top;
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break;
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case 2:
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bounds.left = left;
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break;
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case 3:
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bounds.bottom = bottom;
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break;
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}
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}
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/* If we're drawing a pie then make sure we include the centre */
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if(iType == EMR_PIE) {
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if(bounds.left > xCentre) bounds.left = xCentre;
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else if(bounds.right < xCentre) bounds.right = xCentre;
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if(bounds.top > yCentre) bounds.top = yCentre;
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else if(bounds.bottom < yCentre) bounds.right = yCentre;
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}
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if(!EMFDRV_WriteRecord( dc, &emr.emr ))
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return FALSE;
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EMFDRV_UpdateBBox( dc, &bounds );
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return TRUE;
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}
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/***********************************************************************
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* EMFDRV_Arc
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*/
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BOOL
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EMFDRV_Arc( DC *dc, INT left, INT top, INT right, INT bottom,
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INT xstart, INT ystart, INT xend, INT yend )
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{
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return EMFDRV_ArcChordPie( dc, left, top, right, bottom, xstart, ystart,
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xend, yend, EMR_ARC );
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}
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/***********************************************************************
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* EMFDRV_Pie
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*/
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BOOL
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EMFDRV_Pie( DC *dc, INT left, INT top, INT right, INT bottom,
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INT xstart, INT ystart, INT xend, INT yend )
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{
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return EMFDRV_ArcChordPie( dc, left, top, right, bottom, xstart, ystart,
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xend, yend, EMR_PIE );
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}
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/***********************************************************************
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* EMFDRV_Chord
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*/
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BOOL
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EMFDRV_Chord( DC *dc, INT left, INT top, INT right, INT bottom,
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INT xstart, INT ystart, INT xend, INT yend )
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{
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return EMFDRV_ArcChordPie( dc, left, top, right, bottom, xstart, ystart,
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xend, yend, EMR_CHORD );
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}
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/***********************************************************************
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* EMFDRV_Ellipse
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*/
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BOOL
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EMFDRV_Ellipse( DC *dc, INT left, INT top, INT right, INT bottom )
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{
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EMRELLIPSE emr;
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INT temp;
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TRACE(enhmetafile, "%d,%d - %d,%d\n", left, top, right, bottom);
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if(left == right || top == bottom) return FALSE;
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if(left > right) {temp = left; left = right; right = temp;}
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if(top > bottom) {temp = top; top = bottom; bottom = temp;}
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right--;
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bottom--;
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emr.emr.iType = EMR_ELLIPSE;
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emr.emr.nSize = sizeof(emr);
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emr.rclBox.left = left;
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emr.rclBox.top = top;
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emr.rclBox.right = right;
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emr.rclBox.bottom = bottom;
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EMFDRV_UpdateBBox( dc, &emr.rclBox );
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return EMFDRV_WriteRecord( dc, &emr.emr );
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}
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/***********************************************************************
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* EMFDRV_Rectangle
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*/
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BOOL
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EMFDRV_Rectangle(DC *dc, INT left, INT top, INT right, INT bottom)
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{
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EMRRECTANGLE emr;
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INT temp;
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TRACE(enhmetafile, "%d,%d - %d,%d\n", left, top, right, bottom);
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if(left == right || top == bottom) return FALSE;
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if(left > right) {temp = left; left = right; right = temp;}
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if(top > bottom) {temp = top; top = bottom; bottom = temp;}
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right--;
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bottom--;
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emr.emr.iType = EMR_RECTANGLE;
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emr.emr.nSize = sizeof(emr);
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emr.rclBox.left = left;
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emr.rclBox.top = top;
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emr.rclBox.right = right;
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emr.rclBox.bottom = bottom;
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EMFDRV_UpdateBBox( dc, &emr.rclBox );
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return EMFDRV_WriteRecord( dc, &emr.emr );
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}
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/***********************************************************************
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* EMFDRV_RoundRect
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*/
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BOOL
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EMFDRV_RoundRect( DC *dc, INT left, INT top, INT right,
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INT bottom, INT ell_width, INT ell_height )
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{
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EMRROUNDRECT emr;
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INT temp;
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if(left == right || top == bottom) return FALSE;
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if(left > right) {temp = left; left = right; right = temp;}
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if(top > bottom) {temp = top; top = bottom; bottom = temp;}
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right--;
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bottom--;
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emr.emr.iType = EMR_ROUNDRECT;
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emr.emr.nSize = sizeof(emr);
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emr.rclBox.left = left;
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emr.rclBox.top = top;
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emr.rclBox.right = right;
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emr.rclBox.bottom = bottom;
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emr.szlCorner.cx = ell_width;
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emr.szlCorner.cy = ell_height;
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EMFDRV_UpdateBBox( dc, &emr.rclBox );
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return EMFDRV_WriteRecord( dc, &emr.emr );
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}
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/***********************************************************************
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* EMFDRV_SetPixel
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*/
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COLORREF
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EMFDRV_SetPixel( DC *dc, INT x, INT y, COLORREF color )
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{
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return TRUE;
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}
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/**********************************************************************
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* EMFDRV_Polylinegon
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*
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* Helper for EMFDRV_Poly{line|gon}
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*/
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static BOOL
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EMFDRV_Polylinegon( DC *dc, const POINT* pt, INT count, DWORD iType )
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{
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EMRPOLYLINE *emr;
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DWORD size;
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INT i;
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BOOL ret;
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size = sizeof(EMRPOLYLINE) + sizeof(POINTL) * (count - 1);
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emr = HeapAlloc( SystemHeap, 0, size );
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emr->emr.iType = iType;
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emr->emr.nSize = size;
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emr->rclBounds.left = emr->rclBounds.right = pt[0].x;
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emr->rclBounds.top = emr->rclBounds.bottom = pt[0].y;
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for(i = 1; i < count; i++) {
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if(pt[i].x < emr->rclBounds.left)
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emr->rclBounds.left = pt[i].x;
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else if(pt[i].x > emr->rclBounds.right)
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emr->rclBounds.right = pt[i].x;
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if(pt[i].y < emr->rclBounds.top)
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emr->rclBounds.top = pt[i].y;
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else if(pt[i].y > emr->rclBounds.bottom)
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emr->rclBounds.bottom = pt[i].y;
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}
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emr->cptl = count;
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memcpy(emr->aptl, pt, size);
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ret = EMFDRV_WriteRecord( dc, &emr->emr );
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if(ret)
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EMFDRV_UpdateBBox( dc, &emr->rclBounds );
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HeapFree( SystemHeap, 0, emr );
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return ret;
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}
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/**********************************************************************
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* EMFDRV_Polyline
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*/
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BOOL
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EMFDRV_Polyline( DC *dc, const POINT* pt, INT count )
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{
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return EMFDRV_Polylinegon( dc, pt, count, EMR_POLYLINE );
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}
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/**********************************************************************
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* EMFDRV_Polygon
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*/
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BOOL
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EMFDRV_Polygon( DC *dc, const POINT* pt, INT count )
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{
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if(count < 2) return FALSE;
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return EMFDRV_Polylinegon( dc, pt, count, EMR_POLYGON );
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}
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/**********************************************************************
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* EMFDRV_PolyPolylinegon
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*
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* Helper for EMFDRV_PolyPoly{line|gon}
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*/
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static BOOL
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EMFDRV_PolyPolylinegon( DC *dc, const POINT* pt, const INT* counts, UINT polys,
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DWORD iType)
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{
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EMRPOLYPOLYLINE *emr;
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DWORD cptl = 0, poly, size, point;
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RECTL bounds;
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const POINT *pts;
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BOOL ret;
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bounds.left = bounds.right = pt[0].x;
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bounds.top = bounds.bottom = pt[0].y;
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pts = pt;
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for(poly = 0; poly < polys; poly++) {
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cptl += counts[poly];
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for(point = 0; point < counts[poly]; point++) {
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if(bounds.left > pts->x) bounds.left = pts->x;
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else if(bounds.right < pts->x) bounds.right = pts->x;
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if(bounds.top > pts->y) bounds.top = pts->y;
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else if(bounds.bottom < pts->y) bounds.bottom = pts->y;
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pts++;
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}
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}
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size = sizeof(EMRPOLYPOLYLINE) + (polys - 1) * sizeof(DWORD) +
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(cptl - 1) * sizeof(POINTL);
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emr = HeapAlloc( SystemHeap, 0, size );
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emr->emr.iType = iType;
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emr->emr.nSize = size;
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emr->rclBounds = bounds;
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emr->nPolys = polys;
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emr->cptl = cptl;
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memcpy(emr->aPolyCounts, counts, polys * sizeof(DWORD));
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memcpy(emr->aPolyCounts + polys, pt, cptl * sizeof(POINT));
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ret = EMFDRV_WriteRecord( dc, &emr->emr );
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if(ret)
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EMFDRV_UpdateBBox( dc, &emr->rclBounds );
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HeapFree( SystemHeap, 0, emr );
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return ret;
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}
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/**********************************************************************
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* EMFDRV_PolyPolyline
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*/
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BOOL
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EMFDRV_PolyPolyline(DC *dc, const POINT* pt, const DWORD* counts, DWORD polys)
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{
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return EMFDRV_PolyPolylinegon( dc, pt, (INT *)counts, polys,
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EMR_POLYPOLYLINE );
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}
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/**********************************************************************
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* EMFDRV_PolyPolygon
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*/
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BOOL
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EMFDRV_PolyPolygon( DC *dc, const POINT* pt, const INT* counts, UINT polys )
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{
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return EMFDRV_PolyPolylinegon( dc, pt, counts, polys, EMR_POLYPOLYGON );
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}
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/**********************************************************************
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* EMFDRV_ExtFloodFill
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*/
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BOOL
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EMFDRV_ExtFloodFill( DC *dc, INT x, INT y, COLORREF color, UINT fillType )
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{
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EMREXTFLOODFILL emr;
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emr.emr.iType = EMR_EXTFLOODFILL;
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emr.emr.nSize = sizeof(emr);
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emr.ptlStart.x = x;
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emr.ptlStart.y = y;
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emr.crColor = color;
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emr.iMode = fillType;
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return EMFDRV_WriteRecord( dc, &emr.emr );
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}
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/*********************************************************************
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* EMFDRV_FillRgn
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*/
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BOOL EMFDRV_FillRgn( DC *dc, HRGN hrgn, HBRUSH hbrush )
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{
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EMRFILLRGN *emr;
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DWORD size, rgnsize, index;
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BOOL ret;
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index = EMFDRV_CreateBrushIndirect( dc, hbrush );
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if(!index) return FALSE;
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rgnsize = GetRegionData( hrgn, 0, NULL );
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size = rgnsize + sizeof(EMRFILLRGN) - 1;
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emr = HeapAlloc( SystemHeap, 0, size );
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GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
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emr->emr.iType = EMR_FILLRGN;
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emr->emr.nSize = size;
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emr->rclBounds.left = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
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emr->rclBounds.top = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
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emr->rclBounds.right = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
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emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
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emr->cbRgnData = rgnsize;
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emr->ihBrush = index;
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ret = EMFDRV_WriteRecord( dc, &emr->emr );
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if(ret)
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EMFDRV_UpdateBBox( dc, &emr->rclBounds );
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HeapFree( SystemHeap, 0, emr );
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return ret;
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}
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/*********************************************************************
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* EMFDRV_FrameRgn
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*/
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BOOL EMFDRV_FrameRgn( DC *dc, HRGN hrgn, HBRUSH hbrush, INT width, INT height )
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{
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EMRFRAMERGN *emr;
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DWORD size, rgnsize, index;
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BOOL ret;
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index = EMFDRV_CreateBrushIndirect( dc, hbrush );
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if(!index) return FALSE;
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rgnsize = GetRegionData( hrgn, 0, NULL );
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size = rgnsize + sizeof(EMRFRAMERGN) - 1;
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emr = HeapAlloc( SystemHeap, 0, size );
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GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
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emr->emr.iType = EMR_FRAMERGN;
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emr->emr.nSize = size;
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emr->rclBounds.left = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
|
|
emr->rclBounds.top = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
|
|
emr->rclBounds.right = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
|
|
emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
|
|
emr->cbRgnData = rgnsize;
|
|
emr->ihBrush = index;
|
|
emr->szlStroke.cx = width;
|
|
emr->szlStroke.cy = height;
|
|
|
|
ret = EMFDRV_WriteRecord( dc, &emr->emr );
|
|
if(ret)
|
|
EMFDRV_UpdateBBox( dc, &emr->rclBounds );
|
|
HeapFree( SystemHeap, 0, emr );
|
|
return ret;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* EMFDRV_PaintInvertRgn
|
|
*
|
|
* Helper for EMFDRV_{Paint|Invert}Rgn
|
|
*/
|
|
static BOOL EMFDRV_PaintInvertRgn( DC *dc, HRGN hrgn, DWORD iType )
|
|
{
|
|
EMRINVERTRGN *emr;
|
|
DWORD size, rgnsize;
|
|
BOOL ret;
|
|
|
|
|
|
rgnsize = GetRegionData( hrgn, 0, NULL );
|
|
size = rgnsize + sizeof(EMRINVERTRGN) - 1;
|
|
emr = HeapAlloc( SystemHeap, 0, size );
|
|
|
|
GetRegionData( hrgn, rgnsize, (RGNDATA *)&emr->RgnData );
|
|
|
|
emr->emr.iType = iType;
|
|
emr->emr.nSize = size;
|
|
emr->rclBounds.left = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.left;
|
|
emr->rclBounds.top = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.top;
|
|
emr->rclBounds.right = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.right - 1;
|
|
emr->rclBounds.bottom = ((RGNDATA *)&emr->RgnData)->rdh.rcBound.bottom - 1;
|
|
emr->cbRgnData = rgnsize;
|
|
|
|
ret = EMFDRV_WriteRecord( dc, &emr->emr );
|
|
if(ret)
|
|
EMFDRV_UpdateBBox( dc, &emr->rclBounds );
|
|
HeapFree( SystemHeap, 0, emr );
|
|
return ret;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* EMFDRV_PaintRgn
|
|
*/
|
|
BOOL
|
|
EMFDRV_PaintRgn( DC *dc, HRGN hrgn )
|
|
{
|
|
return EMFDRV_PaintInvertRgn( dc, hrgn, EMR_PAINTRGN );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* EMFDRV_InvertRgn
|
|
*/
|
|
BOOL
|
|
EMFDRV_InvertRgn( DC *dc, HRGN hrgn )
|
|
{
|
|
return EMFDRV_PaintInvertRgn( dc, hrgn, EMR_INVERTRGN );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* EMFDRV_SetBkColor
|
|
*/
|
|
COLORREF
|
|
EMFDRV_SetBkColor( DC *dc, COLORREF color )
|
|
{
|
|
EMRSETBKCOLOR emr;
|
|
|
|
emr.emr.iType = EMR_SETBKCOLOR;
|
|
emr.emr.nSize = sizeof(emr);
|
|
emr.crColor = color;
|
|
|
|
return EMFDRV_WriteRecord( dc, &emr.emr );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* EMFDRV_SetTextColor
|
|
*/
|
|
COLORREF
|
|
EMFDRV_SetTextColor( DC *dc, COLORREF color )
|
|
{
|
|
EMRSETTEXTCOLOR emr;
|
|
|
|
emr.emr.iType = EMR_SETTEXTCOLOR;
|
|
emr.emr.nSize = sizeof(emr);
|
|
emr.crColor = color;
|
|
|
|
return EMFDRV_WriteRecord( dc, &emr.emr );
|
|
}
|