X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fpdf%2FInfoOutputDev.cc;h=8fb751af6e00e7ea2e49b0489dc2398f898f8c7b;hp=830776d95d65749f6e7a9e13eae60a6793989bd5;hb=fc713269e9d26d1be92f70e1ff0d508c94a65dba;hpb=a2f21288d10ce4e448ba07a72463aa2689d59ed3

diff --git a/lib/pdf/InfoOutputDev.cc b/lib/pdf/InfoOutputDev.cc
index 830776d..8fb751a 100644
--- a/lib/pdf/InfoOutputDev.cc
+++ b/lib/pdf/InfoOutputDev.cc
@@ -1,22 +1,303 @@
+#include "config.h"
+#include "Object.h"
 #include "InfoOutputDev.h"
+#include "SplashOutputDev.h"
+#ifdef HAVE_POPPLER
+#include <splash/SplashTypes.h>
+#include <splash/SplashPath.h>
+#include <splash/SplashFont.h>
+#include <splash/SplashFontFile.h>
+#else
+#include "SplashTypes.h"
+#include "SplashPath.h"
+#include "SplashFont.h"
+#include "SplashFontFile.h"
+#endif
 #include "GfxState.h"
 #include "../log.h"
+#include "../types.h"
+#include "../q.h"
+#include "../gfxfont.h"
 #include <math.h>
+#include <assert.h>
 
-InfoOutputDev::InfoOutputDev() 
+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;
-    id2font = new GHash();
+    num_polygons= 0;
+    currentfont = 0;
+    currentglyph = 0;
+    id2font = new GHash(1);
+    SplashColor white = {255,255,255};
+    splash = new SplashOutputDev(splashModeRGB8,320,0,white,0,0);
+    splash->startDoc(xref);
 }
 InfoOutputDev::~InfoOutputDev() 
 {
-    delete id2font;
+    GHashIter*i;
+    id2font->startIter(&i);
+    GString*key;
+    FontInfo*fontinfo;
+    while(id2font->getNext(&i, &key, (void**)&fontinfo)) {
+	delete fontinfo;
+    }
+    id2font->killIter(&i);
+
+    delete id2font;id2font=0;
+    delete splash;splash=0;
+}
+
+void FontInfo::grow(int size)
+{
+    if(size >= this->num_glyphs) {
+	this->glyphs = (GlyphInfo**)realloc(this->glyphs, sizeof(GlyphInfo*)*(size));
+	this->kerning = (dict_t**)realloc(this->kerning, sizeof(dict_t*)*(size));
+	memset(&this->glyphs[this->num_glyphs], 0, sizeof(SplashPath*)*((size)-this->num_glyphs));
+	memset(&this->kerning[this->num_glyphs], 0, sizeof(dict_t*)*((size)-this->num_glyphs));
+	this->num_glyphs = size;
+    }
+}
+FontInfo::FontInfo(char*id)
+{
+    this->id = strdup(id);
+    this->seen = 0;
+    this->num_glyphs = 0;
+    this->glyphs = 0;
+    this->kerning = 0;
+    this->splash_font = 0;
+    this->lastchar = -1;
+    this->lastx = 0;
+    this->lasty = 0;
+    this->gfxfont = 0;
+    this->space_char = -1;
+    this->ascender = 0;
+    this->descender = 0;
+}
+FontInfo::~FontInfo()
+{
+    if(this->id) {free(this->id);this->id=0;}
+    this->font = 0;
+    int t;
+    for(t=0;t<num_glyphs;t++) {
+	if(glyphs[t]) {
+	    delete glyphs[t]->path;glyphs[t]->path = 0;
+	    delete glyphs[t];
+	    glyphs[t]=0;
+	}
+    }
+    free(glyphs);glyphs=0;
+    if(this->gfxfont)
+        gfxfont_free(this->gfxfont);
+   
+    if(kerning) {
+	for(t=0;t<num_glyphs;t++) {
+	    dict_t* d = kerning[t];
+	    if(!d) continue;
+	    DICT_ITERATE_ITEMS(d,void*,key,mtf_t*,m) {
+		mtf_destroy(m);
+	    }
+	    dict_destroy(d);
+	}
+	free(kerning);
+	kerning=0;
+    }
+}
+
+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) {
+		/* now that we have found a space char, make sure it's unique */
+		int s;
+		for(s=0;s<font->num_glyphs;s++) {
+		    if(s!=t && font->glyphs[s].unicode==32)
+			font->glyphs[s].unicode=0;
+		}
+		return t;
+	    }
+	}
+    }
+    return -1;
+}
+
+static int addSpace(gfxfont_t*font)
+{
+    /* first, make sure the new space char is the only char that'll use unicode 32 */
+    int t;
+    for(t=0;t<font->num_glyphs;t++) {
+	if(font->glyphs[t].unicode==32)
+	    font->glyphs[t].unicode=0;
+    }
+    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 = 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*)rfx_calloc(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->ascender);
+    font->descent = fabs(src->descender);
+    
+    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;
+	    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 {
+		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++;
+	}
+    }
+
+    int kerning_size = 0;
+    for(t=0;t<src->num_glyphs;t++) {
+	dict_t* d = src->kerning[t];
+	if(!d) continue;
+	DICT_ITERATE_ITEMS(d,void*,key,mtf_t*,m) {
+	    if(m) {
+		kerning_size++;
+	    }
+	}
+    }
+    font->kerning_size = kerning_size;
+    font->kerning = (gfxkerning_t*)malloc(sizeof(gfxkerning_t)*kerning_size);
+    int pos = 0;
+    for(t=0;t<src->num_glyphs;t++) {
+	dict_t* d = src->kerning[t];
+	if(!d) continue;
+	DICT_ITERATE_ITEMS(d,void*,key,mtf_t*,m) {
+	    if(m) {
+		font->kerning[pos].c1 = src->glyphs[t]->glyphid;
+		font->kerning[pos].c2 = src->glyphs[(int)(ptroff_t)key]->glyphid;
+		font->kerning[pos].advance = (int)(ptroff_t)m->first->key;
+		pos++;
+	    }
+	}
+    }
+    //int advance = (int)(ptroff_t)m->first->key;
+
+    return font;
+}
+
+static float find_average_glyph_advance(gfxfont_t*f)
+{
+    if(!f->num_glyphs)
+	return 0.0;
+
+    float*values = (float*)malloc(sizeof(float)*f->num_glyphs);
+    int t;
+    for(t=0;t<f->num_glyphs;t++) {
+	values[t] = f->glyphs[t].advance;
+    }
+    float m = medianf(values, f->num_glyphs);
+    free(values);
+    return m;
+}
+
+gfxfont_t* FontInfo::getGfxFont()
+{
+    if(!this->gfxfont) {
+        this->gfxfont = createGfxFont(this);
+        this->gfxfont->id = strdup(this->id);
+	this->space_char = findSpace(this->gfxfont);
+	this->average_advance = find_average_glyph_advance(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, width %f", this->gfxfont->id, this->space_char, this->gfxfont->glyphs[this->space_char].advance);
+	}
+	gfxfont_fix_unicode(this->gfxfont);
+    }
+    return this->gfxfont;
+}
+
 GBool InfoOutputDev::upsideDown() {return gTrue;}
 GBool InfoOutputDev::useDrawChar() {return gTrue;}
 GBool InfoOutputDev::interpretType3Chars() {return gTrue;}
+GBool InfoOutputDev::useTilingPatternFill() {return gTrue;}
+
 void InfoOutputDev::startPage(int pageNum, GfxState *state, double crop_x1, double crop_y1, double crop_x2, double crop_y2)
 {
     double x1,y1,x2,y2;
@@ -30,10 +311,23 @@ void InfoOutputDev::startPage(int pageNum, GfxState *state, double crop_x1, doub
     this->y2 = (int)y2;
     msg("<verbose> Generating info structure for page %d", pageNum);
 }
+void InfoOutputDev::endPage()
+{
+}
 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);
@@ -44,39 +338,79 @@ double InfoOutputDev::getMaximumFontSize(char*id)
     return info->max_size;
 }
 
-static char*getFontID(GfxFont*font)
+char*getFontID(GfxFont*font)
 {
     Ref*ref = font->getID();
     GString*gstr = font->getName();
     char* fname = gstr==0?0:gstr->getCString();
     char buf[128];
     if(fname==0) {
-	sprintf(buf, "font-%d-%d", ref->num, ref->gen);
+	if(font->getType() == fontType3) {
+	    sprintf(buf, "t3font-%d-%d", ref->num, ref->gen);
+	} else {
+	    sprintf(buf, "font-%d-%d", ref->num, ref->gen);
+	}
     } else {
 	sprintf(buf, "%s-%d-%d", fname, ref->num, ref->gen);
     }
     return strdup(buf);
 }
 
-
 void InfoOutputDev::updateFont(GfxState *state) 
 {
     GfxFont*font = state->getFont();
-    if(!font)
+    if(!font) {
+	currentfont = 0;
+	return;
+    }
+    if(font->getType() == fontType3) {
+	currentfont = 0;
 	return;
+    }
     char*id = getFontID(font);
-    
-    FontInfo*info = (FontInfo*)id2font->lookup(id);
-    if(!info) {
-      GString* idStr = new GString(id);
-      info = new FontInfo;
-      info->font = font;
-      info->max_size = 0;
-      id2font->add(idStr, (void*)info);
-      free(id);
-      num_fonts++;
+
+    if(currentfont)
+	currentfont->splash_font = 0;
+
+    currentfont = (FontInfo*)id2font->lookup(id);
+    if(!currentfont) {
+	currentfont = new FontInfo(id);
+	currentfont->font = font;
+	currentfont->max_size = 0;
+	GString* idStr = new GString(id);
+	id2font->add(idStr, (void*)currentfont);
+	num_fonts++;
+    }
+
+    state->setCTM(1.0,0,0,1.0,0,0);
+    splash->updateCTM(state, 0,0,0,0,0,0);
+    state->setTextMat(1.0,0,0,1.0,0,0);
+    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;
     }
-    currentfont = info;
+
+    free(id);
+}
+
+void InfoOutputDev::fill(GfxState *state)
+{
+    num_polygons++;
+}
+
+void InfoOutputDev::eoFill(GfxState *state)
+{
+    num_polygons++;
+}
+
+FontInfo* InfoOutputDev::getFont(char*id)
+{
+    return (FontInfo*)id2font->lookup(id);
 }
 
 void InfoOutputDev::drawChar(GfxState *state, double x, double y,
@@ -84,9 +418,6 @@ void InfoOutputDev::drawChar(GfxState *state, double x, double y,
 		      double originX, double originY,
 		      CharCode code, int nBytes, Unicode *u, int uLen)
 {
-    int render = state->getRender();
-    if (render == 3)
-	return;
     double m11,m21,m12,m22;
     state->getFontTransMat(&m11, &m12, &m21, &m22);
     m11 *= state->getHorizScaling();
@@ -94,22 +425,150 @@ void InfoOutputDev::drawChar(GfxState *state, double x, double y,
     double lenx = sqrt(m11*m11 + m12*m12);
     double leny = sqrt(m21*m21 + m22*m22);
     double len = lenx>leny?lenx:leny;
+    if(!currentfont || !currentfont->splash_font) {
+	return; //error
+    }
     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)) {
+	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;
+	}
+	int advance = (int)xshift;
+	if(advance>=0 && advance<g->advance*4 && advance!=currentfont->lastadvance) {
+	    int c1 = currentfont->lastchar;
+	    int c2 = code;
+	    dict_t*d = currentfont->kerning[c1];
+	    if(!d) {
+		d = currentfont->kerning[c1] = dict_new2(&int_type);
+	    }
+	    mtf_t*k = (mtf_t*)dict_lookup(d, (void*)(ptroff_t)c2);
+	    if(!k) {
+		k = mtf_new(&int_type);
+		dict_put(d, (void*)(ptroff_t)c2, k);
+	    }
+	    mtf_increase(k, (void*)(ptroff_t)advance);
+	}
+    }
+
+    currentfont->lastx = x;
+    currentfont->lasty = y;
+    currentfont->lastchar = code;
+    currentfont->lastadvance = (int)(g->advance+0.5);
 }
+
+GBool InfoOutputDev::beginType3Char(GfxState *state, double x, double y, double dx, double dy, CharCode code, Unicode *u, int uLen)
+{
+    GfxFont*font = state->getFont();
+    if(!font)
+	return gTrue;
+    if(font->getType() != fontType3)
+	return gTrue;
+
+    char*id = getFontID(font);
+    currentfont = (FontInfo*)id2font->lookup(id);
+    if(!currentfont) {
+	currentfont = new FontInfo(id);
+	currentfont->font = font;
+	GString* idStr = new GString(id);
+	id2font->add(idStr, (void*)currentfont);
+	num_fonts++;
+    }
+    currentfont = currentfont;
+    free(id);
+
+    currentfont->grow(code+1);
+    if(!currentfont->glyphs[code]) {
+	currentglyph = currentfont->glyphs[code] = new GlyphInfo();
+	currentglyph->unicode = uLen?u[0]:0;
+	currentglyph->path = new SplashPath();
+	currentglyph->x1=0;
+	currentglyph->y1=0;
+	currentglyph->x2=dx;
+	currentglyph->y2=dy;
+	currentglyph->advance=dx;
+	return gFalse;
+    } else {
+	return gTrue;
+    }
+}
+
+void InfoOutputDev::type3D0(GfxState *state, double wx, double wy)
+{
+    currentglyph->x1=0;
+    currentglyph->y1=0;
+    currentglyph->x2=wx;
+    currentglyph->y2=wy;
+}
+
+void InfoOutputDev::type3D1(GfxState *state, double wx, double wy, double llx, double lly, double urx, double ury)
+{
+    if(-lly>currentfont->descender)
+	currentfont->descender = -lly;
+    if(ury>currentfont->ascender)
+	currentfont->ascender = ury;
+
+    currentglyph->x1=llx;
+    currentglyph->y1=lly;
+    currentglyph->x2=urx;
+    currentglyph->y2=ury;
+}
+
+void InfoOutputDev::endType3Char(GfxState *state)
+{
+    double x1 = currentglyph->x1;
+    double y1 = currentglyph->y1;
+    double x2 = currentglyph->x2;
+    double y2 = currentglyph->y2;
+    currentglyph->path->moveTo(x1,y1);
+    currentglyph->path->lineTo(x2,y1);
+    currentglyph->path->lineTo(x2,y2);
+    currentglyph->path->lineTo(x1,y2);
+    currentglyph->path->close();
+}
+    
+void InfoOutputDev::saveState(GfxState *state)
+{
+    updateAll(state);
+}
+
+void InfoOutputDev::restoreState(GfxState *state)
+{
+    updateAll(state);
+}
+
 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,
@@ -119,6 +578,8 @@ 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);
 }
 
@@ -129,5 +590,18 @@ 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());
+    }
+}