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435a566751
* sumatrapdf - vendor import * everything compiles (libjpeg, poppler, fitz, sumatrapdf) * does NOT link (remove the comment tags in the parent directory.rbuild file (rosapps dir) to build it) svn path=/trunk/; revision=29295
143 lines
2.6 KiB
C
143 lines
2.6 KiB
C
#include "fitz-base.h"
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#include "fitz-world.h"
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fz_error *
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fz_newtextnode(fz_textnode **textp, fz_font *font)
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{
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fz_textnode *text;
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text = fz_malloc(sizeof(fz_textnode));
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if (!text)
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return fz_outofmem;
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fz_initnode((fz_node*)text, FZ_NTEXT);
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text->font = fz_keepfont(font);
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text->trm = fz_identity();
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text->len = 0;
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text->cap = 0;
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text->els = nil;
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*textp = text;
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return nil;
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}
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fz_error *
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fz_clonetextnode(fz_textnode **textp, fz_textnode *oldtext)
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{
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fz_textnode *text;
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text = *textp = fz_malloc(sizeof(fz_textnode));
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if (!text)
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return fz_outofmem;
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fz_initnode((fz_node*)text, FZ_NTEXT);
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text->font = fz_keepfont(oldtext->font);
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text->trm = oldtext->trm;
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text->len = oldtext->len;
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text->cap = oldtext->len;
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text->els = nil;
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text->els = fz_malloc(sizeof(fz_textel) * text->len);
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if (!text->els)
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{
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fz_dropfont(text->font);
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fz_free(text);
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return fz_outofmem;
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}
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memcpy(text->els, oldtext->els, sizeof(fz_textel) * text->len);
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*textp = text;
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return nil;
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}
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void
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fz_droptextnode(fz_textnode *text)
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{
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fz_dropfont(text->font);
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fz_free(text->els);
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}
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fz_rect
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fz_boundtextnode(fz_textnode *text, fz_matrix ctm)
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{
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fz_matrix trm;
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fz_rect bbox;
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fz_rect fbox;
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int i;
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if (text->len == 0)
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return fz_emptyrect;
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/* find bbox of glyph origins in ctm space */
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bbox.x0 = bbox.x1 = text->els[0].x;
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bbox.y0 = bbox.y1 = text->els[0].y;
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for (i = 1; i < text->len; i++)
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{
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bbox.x0 = MIN(bbox.x0, text->els[i].x);
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bbox.y0 = MIN(bbox.y0, text->els[i].y);
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bbox.x1 = MAX(bbox.x1, text->els[i].x);
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bbox.y1 = MAX(bbox.y1, text->els[i].y);
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}
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bbox = fz_transformaabb(ctm, bbox);
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/* find bbox of font in trm * ctm space */
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trm = fz_concat(text->trm, ctm);
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trm.e = 0;
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trm.f = 0;
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fbox.x0 = text->font->bbox.x0 * 0.001;
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fbox.y0 = text->font->bbox.y0 * 0.001;
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fbox.x1 = text->font->bbox.x1 * 0.001;
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fbox.y1 = text->font->bbox.y1 * 0.001;
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fbox = fz_transformaabb(trm, fbox);
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/* expand glyph origin bbox by font bbox */
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bbox.x0 += fbox.x0;
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bbox.y0 += fbox.y0;
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bbox.x1 += fbox.x1;
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bbox.y1 += fbox.y1;
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return bbox;
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}
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static fz_error *
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growtext(fz_textnode *text, int n)
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{
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int newcap;
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fz_textel *newels;
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while (text->len + n > text->cap)
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{
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newcap = text->cap + 36;
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newels = fz_realloc(text->els, sizeof (fz_textel) * newcap);
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if (!newels)
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return fz_outofmem;
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text->cap = newcap;
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text->els = newels;
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}
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return nil;
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}
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fz_error *
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fz_addtext(fz_textnode *text, int cid, float x, float y)
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{
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if (growtext(text, 1) != nil)
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return fz_outofmem;
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text->els[text->len].cid = cid;
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text->els[text->len].x = x;
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text->els[text->len].y = y;
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text->len++;
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return nil;
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}
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