From 9916c6d9fdd191129957fda1eca9b6cc97169c59 Mon Sep 17 00:00:00 2001
From: kramm <kramm>
Date: Sat, 6 Jan 2007 22:18:16 +0000
Subject: [PATCH] new device union

---
 lib/devices/arts.c |   89 +++++++++++++++++++++++++++++++++++++++++++---------
 lib/devices/arts.h |    4 ++-
 2 files changed, 78 insertions(+), 15 deletions(-)

diff --git a/lib/devices/arts.c b/lib/devices/arts.c
index 762e9cd..98aed19 100644
--- a/lib/devices/arts.c
+++ b/lib/devices/arts.c
@@ -37,6 +37,7 @@ typedef struct _clip {
 typedef struct _internal {
     gfxdevice_t*out;
     clip_t*clip;
+    ArtSVP*svpunion;
 } internal_t;
 
 static int verbose = 1;
@@ -63,14 +64,15 @@ int arts_setparameter(struct _gfxdevice*dev, const char*key, const char*value)
 {
     dbg("arts_setparameter");
     internal_t*i = (internal_t*)dev->internal;
-    return i->out->setparameter(i->out,key,value);
+    if(i->out) return i->out->setparameter(i->out,key,value);
+    else return 0;
 }
 
 void arts_startpage(struct _gfxdevice*dev, int width, int height)
 {
     dbg("arts_startpage");
     internal_t*i = (internal_t*)dev->internal;
-    i->out->startpage(i->out,width,height);
+    if(i->out) i->out->startpage(i->out,width,height);
 }
 
 void arts_startclip(struct _gfxdevice*dev, gfxline_t*line)
@@ -109,6 +111,16 @@ void arts_endclip(struct _gfxdevice*dev)
     }
 }
 
+void addtounion(struct _gfxdevice*dev, ArtSVP*svp)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    if(i->svpunion) {
+	ArtSVP*old = i->svpunion;
+	i->svpunion = art_svp_union(svp,i->svpunion);
+	art_svp_free(old);
+    }
+}
+
 void arts_stroke(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
 {
     dbg("arts_stroke");
@@ -120,8 +132,9 @@ void arts_stroke(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcol
 	svp = art_svp_intersect(svp, i->clip->svp);
 	art_svp_free(old);
     }
+    addtounion(dev,svp);
     gfxline_t*gfxline = SVPtogfxline(svp);
-    i->out->fill(i->out, gfxline, color);
+    if(i->out) i->out->fill(i->out, gfxline, color);
     free(gfxline);
     art_svp_free(svp);
 }
@@ -139,8 +152,9 @@ void arts_fill(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color)
 	svp = art_svp_intersect(svp, i->clip->svp);
 	art_svp_free(old);
     }
+    addtounion(dev,svp);
     gfxline_t*gfxline = SVPtogfxline(svp);
-    i->out->fill(i->out, gfxline, color);
+    if(i->out) i->out->fill(i->out, gfxline, color);
     free(gfxline);
     art_svp_free(svp);
 }
@@ -155,8 +169,9 @@ void arts_fillbitmap(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxm
 	svp = art_svp_intersect(svp, i->clip->svp);
 	art_svp_free(old);
     }
+    addtounion(dev,svp);
     gfxline_t*gfxline = SVPtogfxline(svp);
-    i->out->fillbitmap(i->out, gfxline, img, matrix, cxform);
+    if(i->out) i->out->fillbitmap(i->out, gfxline, img, matrix, cxform);
     free(gfxline);
     art_svp_free(svp);
 }
@@ -171,8 +186,9 @@ void arts_fillgradient(struct _gfxdevice*dev, gfxline_t*line, gfxgradient_t*grad
 	svp = art_svp_intersect(svp, i->clip->svp);
 	art_svp_free(old);
     }
+    addtounion(dev,svp);
     gfxline_t*gfxline = SVPtogfxline(svp);
-    i->out->fillgradient(i->out, gfxline, gradient, type, matrix);
+    if(i->out) i->out->fillgradient(i->out, gfxline, gradient, type, matrix);
     free(gfxline);
     art_svp_free(svp);
 }
@@ -181,7 +197,7 @@ void arts_addfont(struct _gfxdevice*dev, gfxfont_t*font)
 {
     dbg("arts_addfont");
     internal_t*i = (internal_t*)dev->internal;
-    i->out->addfont(i->out, font);
+    if(i->out) i->out->addfont(i->out, font);
 }
 
 void arts_drawchar(struct _gfxdevice*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color, gfxmatrix_t*matrix)
@@ -199,6 +215,9 @@ void arts_drawchar(struct _gfxdevice*dev, gfxfont_t*font, int glyphnr, gfxcolor_
 	gfxbbox_t bbox2 = gfxline_getbbox(gfxline);
 	double w = bbox2.xmax - bbox2.xmin;
 	double h = bbox2.ymax - bbox2.ymin;
+	
+	addtounion(dev, svp); // TODO: use the whole char, not just the bbox
+
 	if(w < 0.001 || h < 0.001) /* character was clipped completely */ {
 	} else if(fabs((bbox.xmax - bbox.xmin) - w) > 0.05 ||
                   fabs((bbox.ymax - bbox.ymin) - h) > 0.05) {
@@ -207,10 +226,10 @@ void arts_drawchar(struct _gfxdevice*dev, gfxfont_t*font, int glyphnr, gfxcolor_
 	     */
 	    arts_fill(dev, glyph, color);
 	} else {
-	    i->out->drawchar(i->out, font, glyphnr, color, matrix);
+	    if(i->out) i->out->drawchar(i->out, font, glyphnr, color, matrix);
 	}
     } else {
-	i->out->drawchar(i->out, font, glyphnr, color, matrix);
+	if(i->out) i->out->drawchar(i->out, font, glyphnr, color, matrix);
     }
     
     gfxline_free(glyph);
@@ -220,28 +239,69 @@ void arts_drawlink(struct _gfxdevice*dev, gfxline_t*line, char*action)
 {
     dbg("arts_drawlink");
     internal_t*i = (internal_t*)dev->internal;
-    i->out->drawlink(i->out, line, action);
+    if(i->out) i->out->drawlink(i->out, line, action);
 }
 
 void arts_endpage(struct _gfxdevice*dev)
 {
     dbg("arts_endpage");
     internal_t*i = (internal_t*)dev->internal;
-    i->out->endpage(i->out);
+    if(i->out) i->out->endpage(i->out);
 }
 
 gfxresult_t* arts_finish(struct _gfxdevice*dev)
 {
     dbg("arts_finish");
     internal_t*i = (internal_t*)dev->internal;
-    return i->out->finish(i->out);
+    if(i->out) {
+	return i->out->finish(i->out);
+    } else {
+	return 0;
+    }
+}
+
+gfxline_t*gfxdevice_union_getunion(struct _gfxdevice*dev)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    return SVPtogfxline(i->svpunion);
 }
 
-void gfxdevice_arts_init(gfxdevice_t*dev, gfxdevice_t*out)
+void gfxdevice_removeclippings_init(gfxdevice_t*dev, gfxdevice_t*out)
 {
-    dbg("gfxdevice_arts_init");
+    dbg("gfxdevice_removeclippings_init");
     internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
     memset(dev, 0, sizeof(gfxdevice_t));
+    
+    dev->name = "removeclippings";
+
+    dev->internal = i;
+
+    dev->setparameter = arts_setparameter;
+    dev->startpage = arts_startpage;
+    dev->startclip = arts_startclip;
+    dev->endclip = arts_endclip;
+    dev->stroke = arts_stroke;
+    dev->fill = arts_fill;
+    dev->fillbitmap = arts_fillbitmap;
+    dev->fillgradient = arts_fillgradient;
+    dev->addfont = arts_addfont;
+    dev->drawchar = arts_drawchar;
+    dev->drawlink = arts_drawlink;
+    dev->endpage = arts_endpage;
+    dev->finish = arts_finish;
+
+    i->out = out;
+    i->svpunion = 0;
+}
+
+void gfxdevice_union_init(gfxdevice_t*dev,gfxdevice_t*out)
+{
+    dbg("gfxdevice_getunion_init");
+    internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
+    memset(dev, 0, sizeof(gfxdevice_t));
+    
+    dev->name = "union";
+
     dev->internal = i;
 
     dev->setparameter = arts_setparameter;
@@ -259,5 +319,6 @@ void gfxdevice_arts_init(gfxdevice_t*dev, gfxdevice_t*out)
     dev->finish = arts_finish;
 
     i->out = out;
+    i->svpunion = gfxstrokeToSVP(0, 0, 0, 0, 0);
 }
 
diff --git a/lib/devices/arts.h b/lib/devices/arts.h
index c17fc9b..2e2c6c0 100644
--- a/lib/devices/arts.h
+++ b/lib/devices/arts.h
@@ -29,7 +29,9 @@
 extern "C" {
 #endif
 
-void gfxdevice_arts_init(gfxdevice_t*self, gfxdevice_t*dest);
+void gfxdevice_removeclippings_init(gfxdevice_t*self, gfxdevice_t*dest);
+void gfxdevice_union_init(gfxdevice_t*self, gfxdevice_t*dest);
+gfxline_t*gfxdevice_union_getunion(struct _gfxdevice*dev);
 
 #ifdef __cplusplus
 }
-- 
1.7.10.4