зеркало из https://github.com/mozilla/pjs.git
Added some rasterization of polygons, moved some point definitions to correct locations.
This commit is contained in:
dcone%netscape.com
Родитель
4b546455cf
Коммит
5719df758b
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@ -379,6 +379,12 @@ public:
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*/
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NS_IMETHOD FillPolygon(const nsPoint aPoints[], PRInt32 aNumPoints) = 0;
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/**
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* Rasterize a polygon with the current fill color.
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* @param aPoints points to use for the drawing, last must equal first
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* @param aNumPonts number of points in the polygon
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*/
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NS_IMETHOD RasterPolygon(const nsPoint aPoints[], PRInt32 aNumPoints)=0;
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/**
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* Fill a poly in the current foreground color, without transformation taking place
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@ -109,15 +109,15 @@ struct nsFloatPoint {
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* the curve.. or off of the curve for a path
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* @update 03/29/00 dwc
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*/
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struct nsPathPoint: public nsPoint{
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struct nsPathPoint: public nsFloatPoint{
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PRBool mIsOnCurve;
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// Constructors
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nsPathPoint() {}
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nsPathPoint(const nsPathPoint& aPoint) {x = aPoint.x; y = aPoint.y;mIsOnCurve=aPoint.mIsOnCurve;}
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nsPathPoint(nscoord aX, nscoord aY) {x = aX; y = aY;mIsOnCurve=PR_TRUE;}
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nsPathPoint(nscoord aX, nscoord aY,PRBool aIsOnCurve) {x = aX; y = aY;mIsOnCurve=aIsOnCurve;}
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nsPathPoint(float aX, float aY) {x = aX; y = aY;mIsOnCurve=PR_TRUE;}
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nsPathPoint(float aX, float aY,PRBool aIsOnCurve) {x = aX; y = aY;mIsOnCurve=aIsOnCurve;}
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};
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@ -27,6 +27,13 @@
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#include "nsPoint.h"
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typedef struct {
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double x; // x coordinate of edge's intersection with current scanline */
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double dx; // change in x with respect to y
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int i; // edge number: edge i goes from mPointList[i] to mPointList[i+1]
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} Edge;
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class nsRenderingContextImpl : public nsIRenderingContext
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{
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@ -36,6 +43,8 @@ public:
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protected:
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nsTransform2D *mTranMatrix; // The rendering contexts transformation matrix
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int mAct; // number of active edges
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Edge *mActive; // active edge list:edges crossing scanline y
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public:
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nsRenderingContextImpl();
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@ -60,6 +69,14 @@ public:
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*/
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NS_IMETHOD FillPath(nsPathPoint aPointArray[],PRInt32 aNumPts);
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/**
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* Fill a poly in the current foreground color
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* @param aPoints points to use for the drawing, last must equal first
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* @param aNumPonts number of points in the polygon
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*/
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NS_IMETHOD RasterPolygon(const nsPoint aPoints[], PRInt32 aNumPoints);
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/** ---------------------------------------------------
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* See documentation in nsIRenderingContext.h
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* @update 05/01/00 dwc
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@ -95,7 +112,8 @@ protected:
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*/
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void TileImage(nsDrawingSurface aDS,nsRect &aSrcRect,PRInt16 aWidth,PRInt16 aHeight);
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void cdelete(int i);
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void cinsert(int i,int y,const nsPoint aPointArray[],PRInt32 aNumPts);
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public:
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@ -118,7 +136,7 @@ public:
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void SetControls(nsFloatPoint &aAnc1,nsFloatPoint &aCon,nsFloatPoint &aAnc2) { mAnc1 = aAnc1; mCon = aCon; mAnc2 = aAnc2;}
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void SetPoints(nscoord a1x,nscoord a1y,nscoord acx,nscoord acy,nscoord a2x,nscoord a2y) {mAnc1.MoveTo(a1x,a1y),mCon.MoveTo(acx,acy),mAnc2.MoveTo(a2x,a2y);}
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void SetPoints(float a1x,float a1y,float acx,float acy,float a2x,float a2y) {mAnc1.MoveTo(a1x,a1y),mCon.MoveTo(acx,acy),mAnc2.MoveTo(a2x,a2y);}
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void DebugPrint();
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/** ---------------------------------------------------
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* Divide a Quadratic curve into line segments if it is not smaller than a certain size
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* else it is so small that it can be approximated by 2 lineto calls
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@ -24,6 +24,14 @@
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#include "nsIDeviceContext.h"
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#include "nsIImage.h"
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#include "nsTransform2D.h"
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#include <stdlib.h>
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const nsPoint *gPts;
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// comparison routines for qsort
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int compare_ind(const void *u,const void *v){return gPts[(int)*((int*)u)].y <= gPts[(int)*((int*)v)].y ? -1 : 1;}
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int compare_active(const void *u,const void *v){return ((Edge*)u)->x <= ((Edge*)v)->x ? -1 : 1;}
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/** ---------------------------------------------------
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@ -209,7 +217,6 @@ nsPathIter::eSegType curveType;
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nsPoint thePath[MAXPATHSIZE];
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PRInt16 curPoint=0;
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// Transform the points first
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if (aNumPts > 20){
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pp0 = new nsPathPoint[aNumPts];
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@ -246,6 +253,141 @@ PRInt16 curPoint=0;
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return NS_OK;
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}
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/** ---------------------------------------------------
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* See documentation in nsRenderingContextImpl.h
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* @update 3/29/00 dwc
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*/
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NS_IMETHODIMP
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nsRenderingContextImpl::RasterPolygon(const nsPoint aPointArray[],PRInt32 aNumPts)
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{
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int x,k,y0,y1,y,i,j,xl,xr;
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int *ind;
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nsPoint pts[20];
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nsPoint *pp,*pp0;
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const nsPoint *np;
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nsPoint thePath[MAXPATHSIZE];
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if (aNumPts<=0)
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return NS_OK;
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// Transform the points first
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if (aNumPts > 20){
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pp0 = new nsPoint[aNumPts];
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} else {
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pp0 = &pts[0];
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}
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pp = pp0;
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np = &aPointArray[0];
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for ( i= 0; i < aNumPts; i++,np++,pp++){
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pp->x = np->x;
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pp->y = np->y;
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mTranMatrix->TransformCoord((int*)&pp->x,(int*)&pp->y);
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}
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ind = new PRInt32[aNumPts];
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mActive = new Edge[aNumPts];
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gPts = pp0;
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// create y-sorted array of indices ind[k] into vertex list
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for (k=0; k<aNumPts; k++)
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ind[k] = k;
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qsort(ind, aNumPts, sizeof ind[0], compare_ind); // sort ind by mPointList[ind[k]].y
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mAct = 0; // start with empty active list
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k = 0; // ind[k] is next vertex to process
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y0 = (int)ceil(pp0[ind[0]].y-.5);
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y1 = (int)floor(pp0[ind[aNumPts-1]].y-.5);
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for (y=y0; y<=y1; y++) { // step through scanlines
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// check vertices between previous scanline and current one, if any */
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for (; k<aNumPts && pp0[ind[k]].y<=y+.5; k++) {
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i = ind[k];
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j = i>0 ? i-1 : aNumPts-1;
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if (pp0[j].y <= y-.5)
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cdelete(j);
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else if (pp0[j].y > y+.5)
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cinsert(j, y,pp0, aNumPts);
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j = i<aNumPts-1 ? i+1 : 0;
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if (pp0[j].y <= y-.5)
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cdelete(i);
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else if (pp0[j].y > y+.5)
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cinsert(i, y,pp0, aNumPts);
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}
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// sort active edge list by active[j].x
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qsort(mActive, mAct, sizeof mActive[0], compare_active);
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// draw horizontal segments for scanline y
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for (j=0; j<mAct; j+=2) { // draw horizontal segments
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xl = (int) ceil(mActive[j].x-.5); /* left end of span */
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xr = (int)floor(mActive[j+1].x-.5); /* right end of span */
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if(xl<=xr){
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DrawStdLine(xl,y,xr,y);
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//for(x=xl;x<xr;x++){
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//aTheBits->SetPixel(x,y,aRed,aGreen,aBlue);
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//}
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}
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mActive[j].x += mActive[j].dx; /* increment edge coords */
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mActive[j+1].x += mActive[j+1].dx;
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}
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}
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delete[] ind;
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delete[] mActive;
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return NS_OK;
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}
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/**-------------------------------------------------------------------
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* remove edge i from active list
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* @update dc 12/06/1999
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*/
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void
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nsRenderingContextImpl::cdelete(int i)
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{
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int j;
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for (j=0; j<mAct && mActive[j].i!=i; j++);
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if (j>=mAct)
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return;
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mAct--;
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memcpy(&mActive[j], &mActive[j+1],(mAct-j)*sizeof mActive[0]);
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}
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/**-------------------------------------------------------------------
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* append edge i to end of active list
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* @update dc 12/06/1999
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*/
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void
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nsRenderingContextImpl::cinsert(int i,int y,const nsPoint aPointArray[],PRInt32 aNumPts)
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{
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int j;
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double dx;
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const nsPoint *p, *q;
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j = i<aNumPts-1 ? i+1 : 0;
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if (aPointArray[i].y < aPointArray[j].y) {
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p = &aPointArray[i]; q = &aPointArray[j];
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}else{
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p = &aPointArray[j]; q = &aPointArray[i];
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}
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// initialize x position at intersection of edge with scanline y
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mActive[mAct].dx = dx = ((double)q->x-(double)p->x)/((double)q->y-(double)p->y);
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mActive[mAct].x = dx*(y+.5-(double)p->y)+(double)p->x;
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mActive[mAct].i = i;
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mAct++;
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}
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/** ---------------------------------------------------
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* See documentation in nsRenderingContextImpl.h
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* @update 3/29/00 dwc
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@ -299,12 +441,32 @@ float fx,fy,smag;
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curve2.SubDivide(aRenderingContext);
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}else{
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// draw the curve
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#ifdef DEBUGCURVE
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printf("LINE 1- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),
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NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
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printf("LINE 2- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),
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NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
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#endif
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aRenderingContext->DrawStdLine(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
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aRenderingContext->DrawStdLine(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
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}
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}
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/** ---------------------------------------------------
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* See documentation in nsRenderingContextImpl.h
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* @update 3/29/00 dwc
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*/
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void
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QBezierCurve::DebugPrint()
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{
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printf("CURVE COORDINATES\n");
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printf("Anchor 1 %f %f\n",mAnc1.x,mAnc1.y);
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printf("Control %f %f\n",mCon.x,mCon.y);
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printf("Anchor %f %f\n",mAnc2.x,mAnc2.y);
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}
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/** ---------------------------------------------------
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* See documentation in nsRenderingContextImpl.h
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* @update 3/29/00 dwc
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@ -320,10 +482,8 @@ float fx,fy,smag;
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// for now to fix the build
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//fx = (float) fabs(curve1.mAnc2.x - this->mCon.x);
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//fy = (float) fabs(curve1.mAnc2.y - this->mCon.y);
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fx = fy = 0;
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fx = (float) fabs(curve1.mAnc2.x - this->mCon.x);
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fy = (float) fabs(curve1.mAnc2.y - this->mCon.y);
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//smag = fx+fy-(PR_MIN(fx,fy)>>1);
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smag = fx*fx + fy*fy;
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@ -333,9 +493,17 @@ float fx,fy,smag;
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curve2.SubDivide(aThePoints,aNumPts);
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}else{
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// draw the curve
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
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aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
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#ifdef DEBUGCURVE
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printf("LINE 1- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),
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NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
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printf("LINE 2- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),
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NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
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#endif
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}
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}
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@ -431,7 +599,7 @@ float avx,avy,av1x,av1y;
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switch(code) {
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case 07: // 111
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case 06: // 110
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TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
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TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
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aCurveType = eLINE;
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mCurPoint++;
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break;
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@ -443,18 +611,18 @@ float avx,avy,av1x,av1y;
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case 04: // 100
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avx = (float)((pt2->x+pt3->x)/2.0);
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avy = (float)((pt2->y+pt3->y)/2.0);
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TheSegment.SetPoints((float)pt1->x,(float)pt1->y,(float)pt2->x,(float)pt2->y,avx,avy);
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TheSegment.SetPoints(pt1->x,pt1->y,pt2->x,pt2->y,avx,avy);
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aCurveType = eQCURVE;
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mCurPoint++;
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case 03: // 011
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case 02: // 010
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TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
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TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
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aCurveType = eLINE;
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mCurPoint++;
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case 01: // 001
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avx = (float)((pt1->x+pt2->x)/2.0);
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avy = (float)((pt1->y+pt2->y)/2.0);
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TheSegment.SetPoints(avx,avy,(float)pt2->x,(float)pt3->y,(float)pt2->x,(float)pt3->y);
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TheSegment.SetPoints(avx,avy,pt2->x,pt3->y,pt2->x,pt3->y);
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aCurveType = eQCURVE;
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mCurPoint+=2;
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case 00: // 000
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@ -462,13 +630,13 @@ float avx,avy,av1x,av1y;
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avy = (float)((pt1->y+pt2->y)/2.0);
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av1x = (float)((pt2->x+pt3->x)/2.0);
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av1y = (float)((pt2->y+pt3->y)/2.0);
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TheSegment.SetPoints(avx,avy,(float)pt2->x,(float)pt2->y,av1x,av1y);
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TheSegment.SetPoints(avx,avy,pt2->x,pt2->y,av1x,av1y);
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default:
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break;
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}
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} else {
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// have two points.. draw a line
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TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
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TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
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aCurveType = eLINE;
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mCurPoint++;
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}
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@ -24,6 +24,14 @@
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#include "nsIDeviceContext.h"
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#include "nsIImage.h"
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#include "nsTransform2D.h"
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#include <stdlib.h>
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const nsPoint *gPts;
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// comparison routines for qsort
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int compare_ind(const void *u,const void *v){return gPts[(int)*((int*)u)].y <= gPts[(int)*((int*)v)].y ? -1 : 1;}
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int compare_active(const void *u,const void *v){return ((Edge*)u)->x <= ((Edge*)v)->x ? -1 : 1;}
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|
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/** ---------------------------------------------------
|
||||
|
|
@ -209,7 +217,6 @@ nsPathIter::eSegType curveType;
|
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nsPoint thePath[MAXPATHSIZE];
|
||||
PRInt16 curPoint=0;
|
||||
|
||||
|
||||
// Transform the points first
|
||||
if (aNumPts > 20){
|
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pp0 = new nsPathPoint[aNumPts];
|
||||
|
|
@ -246,6 +253,141 @@ PRInt16 curPoint=0;
|
|||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
/** ---------------------------------------------------
|
||||
* See documentation in nsRenderingContextImpl.h
|
||||
* @update 3/29/00 dwc
|
||||
*/
|
||||
NS_IMETHODIMP
|
||||
nsRenderingContextImpl::RasterPolygon(const nsPoint aPointArray[],PRInt32 aNumPts)
|
||||
{
|
||||
int x,k,y0,y1,y,i,j,xl,xr;
|
||||
int *ind;
|
||||
nsPoint pts[20];
|
||||
nsPoint *pp,*pp0;
|
||||
const nsPoint *np;
|
||||
nsPoint thePath[MAXPATHSIZE];
|
||||
|
||||
|
||||
if (aNumPts<=0)
|
||||
return NS_OK;
|
||||
|
||||
// Transform the points first
|
||||
if (aNumPts > 20){
|
||||
pp0 = new nsPoint[aNumPts];
|
||||
} else {
|
||||
pp0 = &pts[0];
|
||||
}
|
||||
pp = pp0;
|
||||
np = &aPointArray[0];
|
||||
|
||||
for ( i= 0; i < aNumPts; i++,np++,pp++){
|
||||
pp->x = np->x;
|
||||
pp->y = np->y;
|
||||
mTranMatrix->TransformCoord((int*)&pp->x,(int*)&pp->y);
|
||||
}
|
||||
|
||||
ind = new PRInt32[aNumPts];
|
||||
mActive = new Edge[aNumPts];
|
||||
|
||||
gPts = pp0;
|
||||
|
||||
// create y-sorted array of indices ind[k] into vertex list
|
||||
for (k=0; k<aNumPts; k++)
|
||||
ind[k] = k;
|
||||
qsort(ind, aNumPts, sizeof ind[0], compare_ind); // sort ind by mPointList[ind[k]].y
|
||||
|
||||
mAct = 0; // start with empty active list
|
||||
k = 0; // ind[k] is next vertex to process
|
||||
y0 = (int)ceil(pp0[ind[0]].y-.5);
|
||||
y1 = (int)floor(pp0[ind[aNumPts-1]].y-.5);
|
||||
|
||||
for (y=y0; y<=y1; y++) { // step through scanlines
|
||||
// check vertices between previous scanline and current one, if any */
|
||||
for (; k<aNumPts && pp0[ind[k]].y<=y+.5; k++) {
|
||||
i = ind[k];
|
||||
j = i>0 ? i-1 : aNumPts-1;
|
||||
if (pp0[j].y <= y-.5)
|
||||
cdelete(j);
|
||||
else if (pp0[j].y > y+.5)
|
||||
cinsert(j, y,pp0, aNumPts);
|
||||
j = i<aNumPts-1 ? i+1 : 0;
|
||||
if (pp0[j].y <= y-.5)
|
||||
cdelete(i);
|
||||
else if (pp0[j].y > y+.5)
|
||||
cinsert(i, y,pp0, aNumPts);
|
||||
}
|
||||
|
||||
// sort active edge list by active[j].x
|
||||
qsort(mActive, mAct, sizeof mActive[0], compare_active);
|
||||
|
||||
// draw horizontal segments for scanline y
|
||||
for (j=0; j<mAct; j+=2) { // draw horizontal segments
|
||||
xl = (int) ceil(mActive[j].x-.5); /* left end of span */
|
||||
|
||||
xr = (int)floor(mActive[j+1].x-.5); /* right end of span */
|
||||
|
||||
if(xl<=xr){
|
||||
DrawStdLine(xl,y,xr,y);
|
||||
//for(x=xl;x<xr;x++){
|
||||
//aTheBits->SetPixel(x,y,aRed,aGreen,aBlue);
|
||||
//}
|
||||
}
|
||||
mActive[j].x += mActive[j].dx; /* increment edge coords */
|
||||
mActive[j+1].x += mActive[j+1].dx;
|
||||
}
|
||||
}
|
||||
|
||||
delete[] ind;
|
||||
delete[] mActive;
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**-------------------------------------------------------------------
|
||||
* remove edge i from active list
|
||||
* @update dc 12/06/1999
|
||||
*/
|
||||
void
|
||||
nsRenderingContextImpl::cdelete(int i)
|
||||
{
|
||||
int j;
|
||||
|
||||
for (j=0; j<mAct && mActive[j].i!=i; j++);
|
||||
if (j>=mAct)
|
||||
return;
|
||||
mAct--;
|
||||
memcpy(&mActive[j], &mActive[j+1],(mAct-j)*sizeof mActive[0]);
|
||||
}
|
||||
|
||||
/**-------------------------------------------------------------------
|
||||
* append edge i to end of active list
|
||||
* @update dc 12/06/1999
|
||||
*/
|
||||
void
|
||||
nsRenderingContextImpl::cinsert(int i,int y,const nsPoint aPointArray[],PRInt32 aNumPts)
|
||||
{
|
||||
int j;
|
||||
double dx;
|
||||
const nsPoint *p, *q;
|
||||
|
||||
j = i<aNumPts-1 ? i+1 : 0;
|
||||
if (aPointArray[i].y < aPointArray[j].y) {
|
||||
p = &aPointArray[i]; q = &aPointArray[j];
|
||||
}else{
|
||||
p = &aPointArray[j]; q = &aPointArray[i];
|
||||
}
|
||||
// initialize x position at intersection of edge with scanline y
|
||||
mActive[mAct].dx = dx = ((double)q->x-(double)p->x)/((double)q->y-(double)p->y);
|
||||
mActive[mAct].x = dx*(y+.5-(double)p->y)+(double)p->x;
|
||||
mActive[mAct].i = i;
|
||||
mAct++;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/** ---------------------------------------------------
|
||||
* See documentation in nsRenderingContextImpl.h
|
||||
* @update 3/29/00 dwc
|
||||
|
|
@ -299,12 +441,32 @@ float fx,fy,smag;
|
|||
curve2.SubDivide(aRenderingContext);
|
||||
}else{
|
||||
// draw the curve
|
||||
#ifdef DEBUGCURVE
|
||||
printf("LINE 1- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),
|
||||
NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
|
||||
printf("LINE 2- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),
|
||||
NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
|
||||
#endif
|
||||
aRenderingContext->DrawStdLine(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
|
||||
aRenderingContext->DrawStdLine(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** ---------------------------------------------------
|
||||
* See documentation in nsRenderingContextImpl.h
|
||||
* @update 3/29/00 dwc
|
||||
*/
|
||||
void
|
||||
QBezierCurve::DebugPrint()
|
||||
{
|
||||
printf("CURVE COORDINATES\n");
|
||||
printf("Anchor 1 %f %f\n",mAnc1.x,mAnc1.y);
|
||||
printf("Control %f %f\n",mCon.x,mCon.y);
|
||||
printf("Anchor %f %f\n",mAnc2.x,mAnc2.y);
|
||||
|
||||
}
|
||||
|
||||
/** ---------------------------------------------------
|
||||
* See documentation in nsRenderingContextImpl.h
|
||||
* @update 3/29/00 dwc
|
||||
|
|
@ -320,10 +482,8 @@ float fx,fy,smag;
|
|||
|
||||
|
||||
// for now to fix the build
|
||||
//fx = (float) fabs(curve1.mAnc2.x - this->mCon.x);
|
||||
//fy = (float) fabs(curve1.mAnc2.y - this->mCon.y);
|
||||
fx = fy = 0;
|
||||
|
||||
fx = (float) fabs(curve1.mAnc2.x - this->mCon.x);
|
||||
fy = (float) fabs(curve1.mAnc2.y - this->mCon.y);
|
||||
//smag = fx+fy-(PR_MIN(fx,fy)>>1);
|
||||
smag = fx*fx + fy*fy;
|
||||
|
||||
|
|
@ -333,9 +493,17 @@ float fx,fy,smag;
|
|||
curve2.SubDivide(aThePoints,aNumPts);
|
||||
}else{
|
||||
// draw the curve
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y));
|
||||
aThePoints[(*aNumPts)++].MoveTo(NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
|
||||
|
||||
#ifdef DEBUGCURVE
|
||||
printf("LINE 1- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y),
|
||||
NSToCoordRound(curve1.mAnc1.x),NSToCoordRound(curve1.mAnc1.y));
|
||||
printf("LINE 2- %d,%d %d,%d\n",NSToCoordRound(curve1.mAnc2.x),NSToCoordRound(curve1.mAnc2.y),
|
||||
NSToCoordRound(curve2.mAnc2.x),NSToCoordRound(curve2.mAnc2.y));
|
||||
#endif
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -431,7 +599,7 @@ float avx,avy,av1x,av1y;
|
|||
switch(code) {
|
||||
case 07: // 111
|
||||
case 06: // 110
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
|
||||
aCurveType = eLINE;
|
||||
mCurPoint++;
|
||||
break;
|
||||
|
|
@ -443,18 +611,18 @@ float avx,avy,av1x,av1y;
|
|||
case 04: // 100
|
||||
avx = (float)((pt2->x+pt3->x)/2.0);
|
||||
avy = (float)((pt2->y+pt3->y)/2.0);
|
||||
TheSegment.SetPoints((float)pt1->x,(float)pt1->y,(float)pt2->x,(float)pt2->y,avx,avy);
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,pt2->x,pt2->y,avx,avy);
|
||||
aCurveType = eQCURVE;
|
||||
mCurPoint++;
|
||||
case 03: // 011
|
||||
case 02: // 010
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
|
||||
aCurveType = eLINE;
|
||||
mCurPoint++;
|
||||
case 01: // 001
|
||||
avx = (float)((pt1->x+pt2->x)/2.0);
|
||||
avy = (float)((pt1->y+pt2->y)/2.0);
|
||||
TheSegment.SetPoints(avx,avy,(float)pt2->x,(float)pt3->y,(float)pt2->x,(float)pt3->y);
|
||||
TheSegment.SetPoints(avx,avy,pt2->x,pt3->y,pt2->x,pt3->y);
|
||||
aCurveType = eQCURVE;
|
||||
mCurPoint+=2;
|
||||
case 00: // 000
|
||||
|
|
@ -462,13 +630,13 @@ float avx,avy,av1x,av1y;
|
|||
avy = (float)((pt1->y+pt2->y)/2.0);
|
||||
av1x = (float)((pt2->x+pt3->x)/2.0);
|
||||
av1y = (float)((pt2->y+pt3->y)/2.0);
|
||||
TheSegment.SetPoints(avx,avy,(float)pt2->x,(float)pt2->y,av1x,av1y);
|
||||
TheSegment.SetPoints(avx,avy,pt2->x,pt2->y,av1x,av1y);
|
||||
default:
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
// have two points.. draw a line
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0,0,pt2->x,pt2->y);
|
||||
TheSegment.SetPoints(pt1->x,pt1->y,0.0,0.0,pt2->x,pt2->y);
|
||||
aCurveType = eLINE;
|
||||
mCurPoint++;
|
||||
}
|
||||
|
|
|
|||
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