From 6b36f92065f054abd810d956169a87180677d4f7 Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Mon, 18 Feb 2002 16:03:54 +0000
Subject: Passage des couleurs en gradients pour uniformiser

---
 generic/Triangles.c | 86 +++++++++++++++++++++++++++--------------------------
 1 file changed, 44 insertions(+), 42 deletions(-)

(limited to 'generic/Triangles.c')

diff --git a/generic/Triangles.c b/generic/Triangles.c
index 183146d..d8596b4 100644
--- a/generic/Triangles.c
+++ b/generic/Triangles.c
@@ -70,7 +70,7 @@ typedef struct _TrianglesItemStruct {
 
 
 static ZnAttrConfig	tr_attrs[] = {
-  { ZN_CONFIG_COLORS, "-colors", NULL,
+  { ZN_CONFIG_GRADIENTS, "-colors", NULL,
     Tk_Offset(TrianglesItemStruct, colors), 0, ZN_DRAW_FLAG, False },
   { ZN_CONFIG_BOOL, "-composerotation", NULL,
     Tk_Offset(TrianglesItemStruct, header.flags), COMPOSE_ROTATION_BIT,
@@ -108,12 +108,12 @@ Init(Item		item,
      int		*argc,
      Tcl_Obj *CONST	*args[])
 {
-  WidgetInfo		*wi = item->wi;
-  TrianglesItem		tr = (TrianglesItem) item;
-  Tcl_Obj		**elems;
-  int			i, num_elems;
-  ZnPoint		p;
-  ZnGradientColor	*colors;
+  WidgetInfo	*wi = item->wi;
+  TrianglesItem	tr = (TrianglesItem) item;
+  Tcl_Obj	**elems;
+  int		i, num_elems;
+  ZnPoint	p;
+  ZnGradient	**grads;
   
   tr->dev_points.num_strips = 0;
 
@@ -152,11 +152,10 @@ Init(Item		item,
   (*argc)--;
  
   CLEAR(tr->flags, FAN_BIT);
-  tr->colors = ZnListNew(1, sizeof(ZnGradientColor));
+  tr->colors = ZnListNew(1, sizeof(ZnGradient *));
   ZnListAssertSize(tr->colors, 1);
-  colors = ZnListArray(tr->colors);
-  colors->alpha = 100;
-  colors->shades[0] = ZnGetColorByValue(wi->win, wi->fore_color);
+  grads = ZnListArray(tr->colors);
+  *grads = ZnGetGradientByValue(wi->fore_gradient);
   
   return ZN_OK;
 }
@@ -172,18 +171,17 @@ Init(Item		item,
 static void
 Clone(Item	item)
 {
-  WidgetInfo	*wi = item->wi;
   TrianglesItem	tr = (TrianglesItem) item;
 
   if (tr->colors) {
-    int		i, num_colors;
-    ZnGradientColor *colors;
+    int		i, num_grads;
+    ZnGradient	**grads;
 
     tr->colors = ZnListDuplicate(tr->colors);
-    num_colors = ZnListSize(tr->colors);
-    colors = ZnListArray(tr->colors);
-    for (i = 0; i < num_colors; i++, colors++) {
-      colors->shades[0] = ZnGetColorByValue(wi->win, colors->shades[0]);
+    num_grads = ZnListSize(tr->colors);
+    grads = ZnListArray(tr->colors);
+    for (i = 0; i < num_grads; i++, grads++) {
+      *grads = ZnGetGradientByValue(*grads);
     }
   }
 
@@ -214,13 +212,13 @@ Destroy(Item	item)
     ZnFree(tr->dev_points.strips->points);
   }
   if (tr->colors) {
-    int		i, num_colors;
-    ZnGradientColor *colors;
+    int		i, num_grads;
+    ZnGradient	**grads;
 
-    num_colors = ZnListSize(tr->colors);
-    colors = ZnListArray(tr->colors);
-    for (i = 0; i < num_colors; i++, colors++) {
-      ZnFreeColor(colors->shades[0]);
+    num_grads = ZnListSize(tr->colors);
+    grads = ZnListArray(tr->colors);
+    for (i = 0; i < num_grads; i++, grads++) {
+      ZnFreeGradient(*grads);
     }
     ZnListFree(tr->colors);
   }
@@ -405,11 +403,11 @@ ToArea(Item	item,
 static void
 Draw(Item	item)
 {
-  WidgetInfo		*wi = item->wi;
-  TrianglesItem		tr = (TrianglesItem) item;
-  int			i, num_points, last_color_index;
-  ZnPoint		*points;
-  ZnGradientColor	*colors;
+  WidgetInfo	*wi = item->wi;
+  TrianglesItem	tr = (TrianglesItem) item;
+  int		i, num_points, last_color_index;
+  ZnPoint	*points;
+  ZnGradient	**grads;
   
   if (tr->dev_points.num_strips == 0) {
     return;
@@ -418,7 +416,7 @@ Draw(Item	item)
   points = tr->dev_points.strips->points;
   num_points = tr->dev_points.strips->num_points;
 
-  colors = ZnListArray(tr->colors);
+  grads = ZnListArray(tr->colors);
   last_color_index = ZnListSize(tr->colors)-1;
   XSetFillStyle(wi->dpy, wi->gc, FillSolid);  
   
@@ -432,7 +430,8 @@ Draw(Item	item)
     }
     for (i = 0; i < num_points-2; i++, xpoints++) {
       if (i <= last_color_index) {
-	XSetForeground(wi->dpy, wi->gc, ZnPixel(colors[i].shades[0]));
+	XSetForeground(wi->dpy, wi->gc,
+		       ZnPixel(ZnGetGradientColor(grads[i], 0, NULL)));
       }
       XFillPolygon(wi->dpy, wi->draw_buffer, wi->gc,
 		   xpoints, 3, Convex, CoordModeOrigin);
@@ -450,7 +449,8 @@ Draw(Item	item)
     points += 3;
     for (i = 0; i < num_points-2; i++, points++) {
       if (i <= last_color_index) {
-	XSetForeground(wi->dpy, wi->gc, ZnPixel(colors[i].shades[0]));
+	XSetForeground(wi->dpy, wi->gc,
+		       ZnPixel(ZnGetGradientColor(grads[i], 0.0, NULL)));
       }
       XFillPolygon(wi->dpy, wi->draw_buffer, wi->gc,
 		   tri, 3, Convex, CoordModeOrigin);
@@ -472,13 +472,14 @@ Draw(Item	item)
 static void
 Render(Item	item)
 {
-  WidgetInfo		*wi = item->wi;
-  TrianglesItem		tr = (TrianglesItem) item;
-  int			i, num_points, last_color_index;
-  ZnPoint		*points;
-  ZnGradientColor	*colors;
-  int			alpha;
-  
+  WidgetInfo	*wi = item->wi;
+  TrianglesItem	tr = (TrianglesItem) item;
+  int		i, num_points, last_color_index;
+  ZnPoint	*points;
+  ZnGradient	**grads;
+  int		alpha;
+  XColor	*color;
+
   if (tr->dev_points.num_strips == 0) {
     return;
   }
@@ -486,7 +487,7 @@ Render(Item	item)
   points = tr->dev_points.strips->points;
   num_points = tr->dev_points.strips->num_points;
 
-  colors = ZnListArray(tr->colors);
+  grads = ZnListArray(tr->colors);
   last_color_index = ZnListSize(tr->colors)-1;
 
   glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
@@ -499,8 +500,9 @@ Render(Item	item)
 
   for (i = 0; i < num_points; i++, points++) {
     if (i <= last_color_index) {
-      alpha = (colors[i].alpha*wi->alpha/100)*65535/100;
-      glColor4us(colors[i].shades[0]->red, colors[i].shades[0]->green, colors[i].shades[0]->blue, alpha);
+      color = ZnGetGradientColor(grads[i], 0.0, &alpha);
+      alpha = ZnComposeAlpha(alpha, wi->alpha);
+      glColor4us(color->red, color->green, color->blue, alpha);
     }
     glVertex2f(points->x, points->y);
   }
-- 
cgit v1.1