From 708edd284f45b7728388c13159d6be977605b73a Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Mon, 12 Nov 2001 09:57:49 +0000
Subject: Am�lioration de la pr�cision des reliefs sur les polygones.
 Correction de plusieurs bugs dans les d�grad�s. Les d�grad�s radiaux
 acceptent un facteur de forme.

---
 generic/Draw.c | 45 ++++++++++++++++++++++++++++-----------------
 1 file changed, 28 insertions(+), 17 deletions(-)

(limited to 'generic/Draw.c')

diff --git a/generic/Draw.c b/generic/Draw.c
index 1ec7f88..3812450 100644
--- a/generic/Draw.c
+++ b/generic/Draw.c
@@ -619,6 +619,10 @@ DoPolygon(ZnPoint	*p,
       }
       else {
 	folded = !IntersectLines(&new_pp1, &new_pp2, &pp1, &pp2, &bevel_points[2]);
+	/*printf("new_pp1 %g@%g, new_pp2 %g@%g, pp1 %g@%g, pp2 %g@%g, inter %g@%g\n",
+	       new_pp1.x, new_pp1.y, new_pp2.x, new_pp2.y,
+	       pp1.x, pp1.y, pp2.x, pp2.y,
+	       bevel_points[2].x, bevel_points[2].y);*/
 	folded = folded && (dotp < 0);
 	if (folded) {
 	  /*printf("DoPolygonRelief: folded edges detected, %g@%g, %g@%g, %g@%g, %g@%g\n",
@@ -890,10 +894,11 @@ PolygonRenderCB(ZnPoint	*bevels,
   XColor	*color = ReliefColorOfSegment(bevels[0].x, bevels[0].y,
 					      bevels[3].x, bevels[3].y,
 					      pd->relief, pd->gradient, pd->wi);
+
   glColor4us(color->red, color->green, color->blue, pd->alpha);
   glBegin(GL_QUADS);
   for (i = 0; i < 4; i++) {
-    glVertex2f(bevels[i].x, bevels[i].y);
+    glVertex2f(REAL_TO_INT(bevels[i].x), REAL_TO_INT(bevels[i].y));
   }
   glEnd();
 
@@ -1187,34 +1192,39 @@ RenderGradient(struct _WidgetInfo	*wi,
     glEnd();
   }
   else if (type == ZN_RADIAL_GRADIENT) {
-    ZnReal	x, y, radius, radius2, radius3;
+    ZnReal	x, radiusx, radius2x, radius3x;
+    ZnReal	y, radiusy, radius2y, radius3y;
     int		num_p, alpha2;
     ZnPoint	*genarc;
     XColor	*color2;
     
-    genarc = GetCirclePoints(3, ZN_CIRCLE_MEDIUM, 0, 360, &num_p, NULL);
-    radius = 0;
+    genarc = GetCirclePoints(3, ZN_CIRCLE_FINEST, 0, 360, &num_p, NULL);
+    radiusx = 0;
+    radiusy = 0;
     color = gradient->colors[0]->shades[0];
     alpha = gradient->colors[0]->alpha*wi->alpha/100*65535/100;
     control = gradient->colors[0]->control;
     for (j = 1; j < gradient->num_colors; j++) {
-      radius2 = quad[1].x*gradient->colors[j]->position/100.0;
+      radius2x = quad[1].x*gradient->colors[j]->position/100.0;
+      radius2y = quad[1].y*gradient->colors[j]->position/100.0;
       if ((control != 50) && (j != gradient->num_colors-1)) {
 	glBegin(GL_QUAD_STRIP);
 	color2 = gradient->colors[j-1]->shades[num_shades/2];
 	alpha2 = gradient->colors[j-1]->alpha*wi->alpha/100*65535/100;
-	radius3 = radius + (radius2-radius)*control/100.0;
+	radius3x = radiusx + (radius2x-radiusx)*control/100.0;
+	radius3y = radiusy + (radius2y-radiusy)*control/100.0;
 	for (i = 0; i < num_p; i++) {
-	  x = quad[0].x+genarc[i].x*radius;
-	  y = quad[0].y+genarc[i].y*radius;
+	  x = quad[0].x+genarc[i].x*radiusx;
+	  y = quad[0].y+genarc[i].y*radiusy;
 	  glColor4us(color->red, color->green, color->blue, alpha);
 	  glVertex2f(x, y);
-	  x = quad[0].x+genarc[i].x*radius3;
-	  y = quad[0].y+genarc[i].y*radius3;
+	  x = quad[0].x+genarc[i].x*radius3x;
+	  y = quad[0].y+genarc[i].y*radius3y;
 	  glColor4us(color2->red, color2->green, color2->blue, alpha);
 	  glVertex2f(x, y);
 	}
-	radius = radius3;
+	radiusx = radius3x;
+	radiusy = radius3y;
 	color = color2;
 	alpha = alpha2;
 	glEnd();
@@ -1223,17 +1233,18 @@ RenderGradient(struct _WidgetInfo	*wi,
       color2 = gradient->colors[j]->shades[0];
       alpha2 = gradient->colors[j]->alpha*wi->alpha/100*65535/100;
       for (i = 0; i < num_p; i++) {
-	x = quad[0].x+genarc[i].x*radius;
-	y = quad[0].y+genarc[i].y*radius;
+	x = quad[0].x+genarc[i].x*radiusx;
+	y = quad[0].y+genarc[i].y*radiusy;
 	glColor4us(color->red, color->green, color->blue, alpha);
 	glVertex2f(x, y);
-	x = quad[0].x+genarc[i].x*radius2;
-	y = quad[0].y+genarc[i].y*radius2;
-	glColor4us(color2->red, color2->green, color2->blue, alpha);
+	x = quad[0].x+genarc[i].x*radius2x;
+	y = quad[0].y+genarc[i].y*radius2y;
+	glColor4us(color2->red, color2->green, color2->blue, alpha2);
 	glVertex2f(x, y);
       }
       glEnd();
-      radius = radius2;
+      radiusx = radius2x;
+      radiusy = radius2y;
       color = color2;
       alpha = alpha2;
       control = gradient->colors[j]->control;
-- 
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