X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fpdf%2FInfoOutputDev.cc;h=affad697948cd809648ab01781283a4057ac185e;hp=165397803793ac9ad0f8dbe9b280e13791e28ef4;hb=727449f065760e1d99735f44638c25678cd8bc52;hpb=5e85f2318e021b29590ae201311350842122d1e8

diff --git a/lib/pdf/InfoOutputDev.cc b/lib/pdf/InfoOutputDev.cc
index 1653978..affad69 100644
--- a/lib/pdf/InfoOutputDev.cc
+++ b/lib/pdf/InfoOutputDev.cc
@@ -16,11 +16,18 @@
 #include "GfxState.h"
 #include "../log.h"
 #include <math.h>
+#include <assert.h>
+
+int config_addspace = 1;
+int config_fontquality = 10;
+int config_bigchar = 0;
 
 InfoOutputDev::InfoOutputDev(XRef*xref) 
 {
     num_links = 0;
-    num_images = 0;
+    num_jpeg_images = 0;
+    num_ppm_images = 0;
+    num_textfields = 0;
     num_fonts = 0;
     num_polygons= 0;
     currentfont = 0;
@@ -52,16 +59,23 @@ void FontInfo::grow(int size)
 	this->num_glyphs = size;
     }
 }
-FontInfo::FontInfo()
+FontInfo::FontInfo(char*id)
 {
+    this->id = strdup(id);
     this->charid2glyph = 0;
     this->seen = 0;
     this->num_glyphs = 0;
     this->glyphs = 0;
     this->splash_font = 0;
+    this->lastchar = -1;
+    this->lastx = 0;
+    this->lasty = 0;
+    this->gfxfont = 0;
+    this->space_char = -1;
 }
 FontInfo::~FontInfo()
 {
+    if(this->id) {free(this->id);this->id=0;}
     this->font = 0;
     if(this->charid2glyph) {
 	free(this->charid2glyph);
@@ -76,7 +90,151 @@ FontInfo::~FontInfo()
 	}
     }
     free(glyphs);glyphs=0;
+    if(this->gfxfont)
+        gfxfont_free(this->gfxfont);
+}
+
+static int findSpace(gfxfont_t*font)
+{
+    int first_space = -1;
+    int t;
+    for(t=0;t<font->num_glyphs;t++) {
+	gfxglyph_t*g = &font->glyphs[t];
+	if(GLYPH_IS_SPACE(g)) {
+	    if(g->unicode == 32) return t;
+	    if(first_space<0)
+		first_space = t;
+	}
+    }
+    if(GLYPH_IS_SPACE(&font->glyphs[32])) {
+	return 32;
+    }
+    return first_space;
+}
+
+static int addSpace(gfxfont_t*font)
+{
+    font->num_glyphs++;
+    font->glyphs = (gfxglyph_t*)realloc(font->glyphs, sizeof(gfxglyph_t)*font->num_glyphs);
+    gfxglyph_t*g = &font->glyphs[font->num_glyphs-1];
+    memset(g, 0, sizeof(*g));
+    g->unicode = 32;
+    //g->advance = font->ascent;
+    g->advance = fabs(font->ascent - font->descent)*2 / 3;
+    if(font->max_unicode > 32)
+	font->unicode2glyph[32] = font->num_glyphs-1;
+#if 0
+    g->line = gfxline_makerectangle(0, -font->ascent, g->advance, font->descent);
+#endif
+    return font->num_glyphs-1;
+}
+
+static gfxfont_t* createGfxFont(FontInfo*src)
+{
+    gfxfont_t*font = (gfxfont_t*)malloc(sizeof(gfxfont_t));
+    memset(font, 0, sizeof(gfxfont_t));
+
+    font->glyphs = (gfxglyph_t*)malloc(sizeof(gfxglyph_t)*src->num_glyphs);
+    memset(font->glyphs, 0, sizeof(gfxglyph_t)*src->num_glyphs);
+    font->id = 0;
+    int t;
+
+    double quality = (INTERNAL_FONT_SIZE * 200 / config_fontquality) / src->max_size;
+    double scale = 1;
+    //printf("%d glyphs\n", font->num_glyphs);
+    font->num_glyphs = 0;
+    font->ascent = fabs(src->descender);
+    font->descent = fabs(src->ascender);
+    
+    for(t=0;t<src->num_glyphs;t++) {
+	if(src->glyphs[t]) {
+	    SplashPath*path = src->glyphs[t]->path;
+	    int len = path?path->getLength():0;
+	    //printf("glyph %d) %08x (%d line segments)\n", t, path, len);
+	    gfxglyph_t*glyph = &font->glyphs[font->num_glyphs];
+	    src->glyphs[t]->glyphid = font->num_glyphs;
+	    glyph->unicode = src->glyphs[t]->unicode;
+	    if(glyph->unicode >= font->max_unicode)
+		font->max_unicode = glyph->unicode+1;
+	    gfxdrawer_t drawer;
+	    gfxdrawer_target_gfxline(&drawer);
+	    int s;
+	    int count = 0;
+	    double xmax = 0;
+	    for(s=0;s<len;s++) {
+		Guchar f;
+		double x, y;
+		path->getPoint(s, &x, &y, &f);
+		if(!s || x > xmax)
+		    xmax = x;
+		if(f&splashPathFirst) {
+		    drawer.moveTo(&drawer, x*scale, y*scale);
+		}
+		if(f&splashPathCurve) {
+		    double x2,y2;
+		    path->getPoint(++s, &x2, &y2, &f);
+		    if(f&splashPathCurve) {
+			double x3,y3;
+			path->getPoint(++s, &x3, &y3, &f);
+			gfxdraw_cubicTo(&drawer, x*scale, y*scale, x2*scale, y2*scale, x3*scale, y3*scale, quality);
+		    } else {
+			drawer.splineTo(&drawer, x*scale, y*scale, x2*scale, y2*scale);
+		    }
+		} else {
+		    drawer.lineTo(&drawer, x*scale, y*scale);
+		}
+	     //   printf("%f %f %s %s\n", x, y, (f&splashPathCurve)?"curve":"",
+	     //       			  (f&splashPathFirst)?"first":"",
+	     //       			  (f&splashPathLast)?"last":"");
+	    }
+
+	    glyph->line = (gfxline_t*)drawer.result(&drawer);
+	    if(src->glyphs[t]->advance>0) {
+		glyph->advance = src->glyphs[t]->advance;
+	    } else {
+		msg("<warning> Approximating advance value for glyph %d", t);
+		glyph->advance = xmax*scale;
+	    }
+	    if(config_bigchar) {
+		double max = src->glyphs[t]->advance_max;
+		if(max>0 && max > glyph->advance) {
+		    glyph->advance = max;
+		}
+	    }
+
+	    font->num_glyphs++;
+	}
+    }
+    font->unicode2glyph = (int*)malloc(sizeof(int)*font->max_unicode);
+    memset(font->unicode2glyph, -1, sizeof(int)*font->max_unicode);
+    for(t=0;t<font->num_glyphs;t++) {
+	if(font->glyphs[t].unicode>0 && font->glyphs[t].unicode<font->max_unicode) {
+	    font->unicode2glyph[font->glyphs[t].unicode] = t;
+	}
+
+    }
+    return font;
 }
+
+
+gfxfont_t* FontInfo::getGfxFont()
+{
+    if(!this->gfxfont) {
+        this->gfxfont = createGfxFont(this);
+        this->gfxfont->id = strdup(this->id);
+	this->space_char = findSpace(this->gfxfont);
+	if(this->space_char>=0) {
+	    msg("<debug> Font %s has space char %d (unicode=%d)", 
+		    this->id, this->space_char, 
+		    this->gfxfont->glyphs[this->space_char].unicode);
+	} else if(config_addspace) {
+	    this->space_char = addSpace(this->gfxfont);
+	    msg("<debug> Appending space char to font %s, position %d", this->gfxfont->id, this->space_char);
+	}
+    }
+    return this->gfxfont;
+}
+
 GBool InfoOutputDev::upsideDown() {return gTrue;}
 GBool InfoOutputDev::useDrawChar() {return gTrue;}
 GBool InfoOutputDev::interpretType3Chars() {return gTrue;}
@@ -102,6 +260,16 @@ void InfoOutputDev::drawLink(Link *link, Catalog *catalog)
 {
     num_links++;
 }
+   
+/*  } else if(!strcmp(key,"fontquality")) {
+        this->config_fontquality = atof(value);
+	if(this->config_fontquality<=1)
+	    this->config_fontquality=1;
+    } else if(!strcmp(key,"bigchar")) {
+        this->config_bigchar = atoi(value);
+    }
+ */
+
 double InfoOutputDev::getMaximumFontSize(char*id)
 {
     FontInfo*info = (FontInfo*)id2font->lookup(id);
@@ -148,7 +316,7 @@ void InfoOutputDev::updateFont(GfxState *state)
 
     currentfont = (FontInfo*)id2font->lookup(id);
     if(!currentfont) {
-	currentfont = new FontInfo;
+	currentfont = new FontInfo(id);
 	currentfont->font = font;
 	currentfont->max_size = 0;
 	GString* idStr = new GString(id);
@@ -162,6 +330,13 @@ void InfoOutputDev::updateFont(GfxState *state)
     state->setFont(font, 1024.0);
     splash->doUpdateFont(state);
     currentfont->splash_font = splash->getCurrentFont();
+    if(currentfont->splash_font) {
+        currentfont->ascender = currentfont->splash_font->ascender;
+        currentfont->descender = currentfont->splash_font->descender;
+    } else {
+        currentfont->ascender = currentfont->descender = 0;
+    }
+
     free(id);
 }
 
@@ -198,17 +373,32 @@ void InfoOutputDev::drawChar(GfxState *state, double x, double y,
     if(currentfont && currentfont->max_size < len) {
 	currentfont->max_size = len;
     }
+    
+    num_textfields++;
+
     currentfont->grow(code+1);
     GlyphInfo*g = currentfont->glyphs[code];
     if(!g) {
 	g = currentfont->glyphs[code] = new GlyphInfo();
+	g->advance_max = 0;
+	currentfont->splash_font->last_advance = -1;
 	g->path = currentfont->splash_font->getGlyphPath(code);
+	g->advance = currentfont->splash_font->last_advance;
 	g->unicode = 0;
     }
-    if(uLen && (u[0]>=32 && u[0]<g->unicode || !g->unicode)) {
+    if(uLen && ((u[0]>=32 && u[0]<g->unicode) || !g->unicode)) {
 	g->unicode = u[0];
     }
+    if(currentfont->lastchar>=0 && currentfont->lasty == y) {
+	double xshift = x - currentfont->lastx;
+	if(xshift>=0 && xshift > g->advance_max) {
+	    g->advance_max = xshift;
+	}
+    }
 
+    currentfont->lastx = x;
+    currentfont->lasty = y;
+    currentfont->lastchar = code;
 }
 
 GBool InfoOutputDev::beginType3Char(GfxState *state, double x, double y, double dx, double dy, CharCode code, Unicode *u, int uLen)
@@ -222,7 +412,7 @@ GBool InfoOutputDev::beginType3Char(GfxState *state, double x, double y, double
     char*id = getFontID(font);
     currentfont = (FontInfo*)id2font->lookup(id);
     if(!currentfont) {
-	currentfont = new FontInfo;
+	currentfont = new FontInfo(id);
 	currentfont->font = font;
 	GString* idStr = new GString(id);
 	id2font->add(idStr, (void*)currentfont);
@@ -279,14 +469,16 @@ void InfoOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
 			   int width, int height, GBool invert,
 			   GBool inlineImg) 
 {
-    num_images++;
+    if(str->getKind()==strDCT) num_jpeg_images++; else num_ppm_images++;
+
     OutputDev::drawImageMask(state,ref,str,width,height,invert,inlineImg);
 }
 void InfoOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
 		       int width, int height, GfxImageColorMap *colorMap,
 		       int *maskColors, GBool inlineImg)
 {
-    num_images++;
+    if(str->getKind()==strDCT) num_jpeg_images++; else num_ppm_images++;
+
     OutputDev::drawImage(state,ref,str,width,height,colorMap,maskColors,inlineImg);
 }
 void InfoOutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
@@ -296,6 +488,8 @@ void InfoOutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
 				int maskWidth, int maskHeight,
 				GBool maskInvert) 
 {
+    if(str->getKind()==strDCT) num_jpeg_images++; else num_ppm_images++;
+
     OutputDev::drawMaskedImage(state,ref,str,width,height,colorMap,maskStr,maskWidth,maskHeight,maskInvert);
 }
 
@@ -306,5 +500,18 @@ void InfoOutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *st
 				    int maskWidth, int maskHeight,
 				    GfxImageColorMap *maskColorMap) 
 {
+    if(str->getKind()==strDCT) num_jpeg_images++; else num_ppm_images++;
+
     OutputDev::drawSoftMaskedImage(state,ref,str,width,height,colorMap,maskStr,maskWidth,maskHeight,maskColorMap);
 }
+    
+void InfoOutputDev::dumpfonts(gfxdevice_t*dev)
+{
+    GHashIter*i;
+    GString*key;
+    FontInfo*font;
+    id2font->startIter(&i);
+    while(id2font->getNext(&i, &key, (void**)&font)) {
+        dev->addfont(dev, font->getGfxFont());
+    }
+}