lib/pdf: make startPage() upstream compatible

[swftools.git] / lib / pdf / InfoOutputDev.cc

diff --git a/lib/pdf/InfoOutputDev.cc b/lib/pdf/InfoOutputDev.cc
index 9ee7216..aa253be 100644 (file)
--- a/lib/pdf/InfoOutputDev.cc
+++ b/lib/pdf/InfoOutputDev.cc
@@ -78,6 +78,8 @@ FontInfo::FontInfo(char*id)
     this->lasty = 0;
     this->gfxfont = 0;
     this->space_char = -1;
+    this->ascender = 0;
+    this->descender = 0;
 }
 FontInfo::~FontInfo()
 {
@@ -116,26 +118,34 @@ static int findSpace(gfxfont_t*font)
     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(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;
+           }
        }
     }
-    if(font->num_glyphs>32 && GLYPH_IS_SPACE(&font->glyphs[32])) {
-       return 32;
-    }
-    return first_space;
+    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 = font->ascent;
-    g->advance = fabs(font->ascent - font->descent)*2 / 3;
+    g->advance = fabs(font->ascent + font->descent)*2 / 3;
     if(font->max_unicode > 32)
        font->unicode2glyph[32] = font->num_glyphs-1;
 #if 0
@@ -146,8 +156,7 @@ static int addSpace(gfxfont_t*font)
 
 static gfxfont_t* createGfxFont(FontInfo*src)
 {
-    gfxfont_t*font = (gfxfont_t*)malloc(sizeof(gfxfont_t));
-    memset(font, 0, sizeof(gfxfont_t));
+    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);
@@ -169,8 +178,6 @@ static gfxfont_t* createGfxFont(FontInfo*src)
            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;
@@ -220,8 +227,6 @@ static gfxfont_t* createGfxFont(FontInfo*src)
        }
     }
 
-    gfxfont_fix_unicode(font);
-
     int kerning_size = 0;
     for(t=0;t<src->num_glyphs;t++) {
        dict_t* d = src->kerning[t];
@@ -281,8 +286,9 @@ gfxfont_t* FontInfo::getGfxFont()
                    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);
+           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;
 }
@@ -292,11 +298,23 @@ 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)
+GBool InfoOutputDev::checkPageSlice(Page *page, double hDPI, double vDPI,
+             int rotate, GBool useMediaBox, GBool crop,
+             int sliceX, int sliceY, int sliceW, int sliceH,
+             GBool printing, Catalog *catalog,
+             GBool (*abortCheckCbk)(void *data),
+             void *abortCheckCbkData)
 {
+    this->page = page;
+    return gTrue;
+}
+
+void InfoOutputDev::startPage(int pageNum, GfxState *state)
+{
+    PDFRectangle *r = this->page->getCropBox();
     double x1,y1,x2,y2;
-    state->transform(crop_x1,crop_y1,&x1,&y1);
-    state->transform(crop_x2,crop_y2,&x2,&y2);
+    state->transform(r->x1,r->y1,&x1,&y1);
+    state->transform(r->x2,r->y2,&x2,&y2);
     if(x2<x1) {double x3=x1;x1=x2;x2=x3;}
     if(y2<y1) {double y3=y1;y1=y2;y2=y3;}
     this->x1 = (int)x1;
@@ -498,6 +516,7 @@ GBool InfoOutputDev::beginType3Char(GfxState *state, double x, double y, double
        currentglyph->y1=0;
        currentglyph->x2=dx;
        currentglyph->y2=dy;
+       currentglyph->advance=dx;
        return gFalse;
     } else {
        return gTrue;
@@ -514,6 +533,11 @@ void InfoOutputDev::type3D0(GfxState *state, double wx, double 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;
@@ -532,6 +556,16 @@ void InfoOutputDev::endType3Char(GfxState *state)
     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,