X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fdevices%2Frescale.c;h=350dfd2b849bf498ba87eb070ba9d790df954bd8;hb=7fb4a4ac393f19a0b8a8998a2f1deac88c97eda0;hp=50b3c3713de6fa6cb0d5fb2f4d7ec381dbf0eeb9;hpb=07e6625d8b3f4acd6a488208feaccbbe8a71c724;p=swftools.git

diff --git a/lib/devices/rescale.c b/lib/devices/rescale.c
index 50b3c37..350dfd2 100644
--- a/lib/devices/rescale.c
+++ b/lib/devices/rescale.c
@@ -21,8 +21,13 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdarg.h>
+#ifndef WIN32
 #include <unistd.h>
+#endif
 #include <memory.h>
+#include <math.h>
+#include <string.h>
+#include "rescale.h"
 #include "../types.h"
 #include "../mem.h"
 #include "../gfxdevice.h"
@@ -30,10 +35,14 @@
 
 typedef struct _internal {
     gfxdevice_t*out;
+    int origwidth;
+    int origheight;
     int targetwidth;
     int targetheight;
+    int centerx, centery;
     gfxmatrix_t matrix;
     double zoomwidth;
+    int keepratio;
 } internal_t;
 
 static int verbose = 1;
@@ -45,7 +54,7 @@ static void dbg(char*format, ...)
     int l;
     va_list arglist;
     va_start(arglist, format);
-    vsprintf(buf, format, arglist);
+    vsnprintf(buf, sizeof(buf)-1, format, arglist);
     va_end(arglist);
     l = strlen(buf);
     while(l && buf[l-1]=='\n') {
@@ -56,8 +65,51 @@ static void dbg(char*format, ...)
     fflush(stdout);
 }
 
+char gfxline_isRect(gfxline_t*line)
+{
+    return 1;
+    if(!line)
+	return 0;
+    double x1=line->x,y1=line->x,x2=line->x,y2=line->y;
+    int nx1=0,nx2=0,ny1=0,ny2=0;
+    line = line->next;
+    while(line) {
+	if(line->type != gfx_lineTo)
+	    return 0;
+	if(line->x < x1) {
+	    x1 = line->x;
+	    nx1++;
+	} else if(line->y < y1) {
+	    y1 = line->y;
+	    ny1++;
+	} else if(line->x > x2) {
+	    x2 = line->x;
+	    nx2++;
+	} else if(line->y > y1) {
+	    y2 = line->y;
+	    ny2++;
+	}
+	line = line->next;
+    }
+    return (nx1+nx2)==1 && (ny1+ny2)==1;
+}
+
 gfxline_t*transformgfxline(internal_t*i, gfxline_t*line)
 {
+    /* special case: transformed rectangle 
+    if(gfxline_isRect(line)) {
+	gfxbbox_t bbox = gfxline_getbbox(line);
+	if(fabs(bbox.xmin)<0.1 && fabs(bbox.ymin)<0.1 &&
+	   fabs(bbox.ymax-i->origwidth)<0.1 && fabs(bbox.ymax-i->origheight)<0.1) {
+	    gfxline_t r[5];
+	    r[0].x = 0;             r[0].y = 0;           r[0].type = gfx_moveTo;r[0].next = &r[1];
+	    r[1].x = i->targetwidth;r[1].y = 0;           r[1].type = gfx_lineTo;r[1].next = &r[2];
+	    r[2].x = i->targetwidth;r[2].y = i->targetheight;r[2].type = gfx_lineTo;r[2].next = &r[3];
+	    r[3].x = 0;             r[3].y = i->targetheight;r[3].type = gfx_lineTo;r[3].next = &r[4];
+	    r[4].x = 0;             r[4].y = 0;           r[4].type = gfx_lineTo;r[4].next = 0;
+	    return gfxline_clone(r);
+	}
+    } */
     gfxline_t*line2 = gfxline_clone(line);
     gfxline_transform(line2, &i->matrix);
     return line2;
@@ -66,15 +118,65 @@ gfxline_t*transformgfxline(internal_t*i, gfxline_t*line)
 int rescale_setparameter(gfxdevice_t*dev, const char*key, const char*value)
 {
     internal_t*i = (internal_t*)dev->internal;
-    return i->out->setparameter(i->out,key,value);
+    if(!strcmp(key, "keepratio")) {
+	i->keepratio = atoi(value);
+	return 1;
+    } else if(!strcmp(key, "centerx")) {
+	i->centerx = atoi(value);
+	return 1;
+    } else if(!strcmp(key, "centery")) {
+	i->centery = atoi(value);
+	return 1;
+    } else {
+	if(i->out) {
+	    return i->out->setparameter(i->out,key,value);
+	} else {
+	    return 0;
+	}
+    }
 }
 
 void rescale_startpage(gfxdevice_t*dev, int width, int height)
 {
     internal_t*i = (internal_t*)dev->internal;
-    i->matrix.m00 = (double)i->targetwidth / (double)width;
-    i->matrix.m11 = (double)i->targetheight / (double)height;
-    i->out->startpage(i->out,i->targetwidth,i->targetheight);
+
+    i->origwidth = width;
+    i->origheight = height;
+
+    if(i->targetwidth || i->targetheight) {
+        int targetwidth = i->targetwidth;
+        if(!targetwidth)
+            targetwidth = width*i->targetheight/height;
+        int targetheight = i->targetheight;
+        if(!targetheight)
+            targetheight = height*i->targetwidth/width;
+	if(i->keepratio) {
+	    double rx = (double)targetwidth / (double)width;
+	    double ry = (double)targetheight / (double)height;
+	    if(rx<ry) {
+		i->matrix.m00 = rx;
+		i->matrix.m11 = rx;
+		i->matrix.tx = 0;
+		if(i->centery) {
+		    i->matrix.ty = (targetheight - height*rx) / 2;
+		}
+	    } else {
+		i->matrix.m00 = ry;
+		i->matrix.m11 = ry;
+		if(i->centerx) {
+		    i->matrix.tx = (targetwidth - width*ry) / 2;
+		}
+		i->matrix.ty = 0;
+	    }
+	} else {
+	    i->matrix.m00 = (double)targetwidth / (double)width;
+	    i->matrix.m11 = (double)targetheight / (double)height;
+	}
+	i->zoomwidth = sqrt(i->matrix.m00*i->matrix.m11);
+	i->out->startpage(i->out,targetwidth,targetheight);
+    } else {
+	i->out->startpage(i->out,(int)(width*i->matrix.m00),(int)(height*i->matrix.m11));
+    }
 }
 
 void rescale_startclip(gfxdevice_t*dev, gfxline_t*line)
@@ -121,7 +223,7 @@ void rescale_fillgradient(gfxdevice_t*dev, gfxline_t*line, gfxgradient_t*gradien
 {
     internal_t*i = (internal_t*)dev->internal;
     gfxline_t*line2 = transformgfxline(i, line);
-    i->out->fillgradient(i->out, line, gradient, type, matrix);
+    i->out->fillgradient(i->out, line2, gradient, type, matrix);
     gfxline_free(line2);
 }
 
@@ -139,11 +241,11 @@ void rescale_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*c
     i->out->drawchar(i->out, font, glyphnr, color, &m2);
 }
 
-void rescale_drawlink(gfxdevice_t*dev, gfxline_t*line, char*action)
+void rescale_drawlink(gfxdevice_t*dev, gfxline_t*line, const char*action)
 {
     internal_t*i = (internal_t*)dev->internal;
     gfxline_t*line2 = transformgfxline(i, line);
-    i->out->drawlink(i->out, line, action);
+    i->out->drawlink(i->out, line2, action);
     gfxline_free(line2);
 }
 
@@ -158,10 +260,14 @@ gfxresult_t* rescale_finish(gfxdevice_t*dev)
     internal_t*i = (internal_t*)dev->internal;
     gfxdevice_t*out = i->out;
     free(dev->internal);dev->internal = 0;i=0;
-    return out->finish(out);
+    if(out) {
+	return out->finish(out);
+    } else {
+	return 0;
+    }
 }
 
-void gfxdevice_rescale_init(gfxdevice_t*dev, gfxdevice_t*out, int width, int height)
+void gfxdevice_rescale_init(gfxdevice_t*dev, gfxdevice_t*out, int width, int height, double scale)
 {
     internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
     memset(dev, 0, sizeof(gfxdevice_t));
@@ -188,7 +294,47 @@ void gfxdevice_rescale_init(gfxdevice_t*dev, gfxdevice_t*out, int width, int hei
     i->targetwidth = width;
     i->targetheight = height;
     i->zoomwidth = 1.0;
+    i->centerx = 1;
+	
+    i->matrix.m00 = scale;
+    i->matrix.m01 = 0;
+    i->matrix.m11 = scale;
+    i->matrix.m10 = 0;
+    i->matrix.tx = 0;
+    i->matrix.ty = 0;
+    i->zoomwidth = scale;
 
     i->out = out;
 }
 
+void gfxdevice_rescale_setzoom(gfxdevice_t*dev, double scale)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    if(strcmp(dev->name, "rescale")) {
+	fprintf(stderr, "Internal error: can't cast device %s to a rescale device\n", dev->name);
+	return;
+    }
+    i->matrix.m00 = scale;
+    i->matrix.m01 = 0;
+    i->matrix.m11 = scale;
+    i->matrix.m10 = 0;
+    i->matrix.tx = 0;
+    i->matrix.ty = 0;
+    i->zoomwidth = scale;
+}
+void gfxdevice_rescale_setdevice(gfxdevice_t*dev, gfxdevice_t*out)
+{
+    internal_t*i = (internal_t*)dev->internal;
+    if(strcmp(dev->name, "rescale")) {
+	fprintf(stderr, "Internal error: can't cast device %s to a rescale device\n", dev->name);
+	return;
+    }
+    i->out = out;
+}
+
+gfxdevice_t* gfxdevice_rescale_new(gfxdevice_t*out, int width, int height, double scale)
+{
+    gfxdevice_t* d = (gfxdevice_t*)malloc(sizeof(gfxdevice_t));
+    gfxdevice_rescale_init(d, out, width, height, scale);
+    return d;
+}