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#include "mupdf/fitz.h"
#include "mupdf/pdf.h"
#include <string.h>
#ifdef _WIN32
#define timegm _mkgmtime
#endif
static void
pdf_drop_annot_imp(fz_context *ctx, pdf_annot *annot)
{
pdf_drop_obj(ctx, annot->ap);
pdf_drop_obj(ctx, annot->obj);
}
void
pdf_drop_annots(fz_context *ctx, pdf_annot *annot)
{
while (annot)
{
pdf_annot *next = annot->next;
fz_drop_annot(ctx, &annot->super);
annot = next;
}
}
/* Create transform to fit appearance stream to annotation Rect */
void
pdf_annot_transform(fz_context *ctx, pdf_annot *annot, fz_matrix *annot_ctm)
{
fz_rect bbox, rect;
fz_matrix matrix;
float w, h, x, y;
pdf_to_rect(ctx, pdf_dict_get(ctx, annot->obj, PDF_NAME(Rect)), &rect);
pdf_xobject_bbox(ctx, annot->ap, &bbox);
pdf_xobject_matrix(ctx, annot->ap, &matrix);
fz_transform_rect(&bbox, &matrix);
if (bbox.x1 == bbox.x0)
w = 0;
else
w = (rect.x1 - rect.x0) / (bbox.x1 - bbox.x0);
if (bbox.y1 == bbox.y0)
h = 0;
else
h = (rect.y1 - rect.y0) / (bbox.y1 - bbox.y0);
x = rect.x0 - bbox.x0;
y = rect.y0 - bbox.y0;
fz_pre_scale(fz_translate(annot_ctm, x, y), w, h);
}
pdf_annot *pdf_new_annot(fz_context *ctx, pdf_page *page, pdf_obj *obj)
{
pdf_annot *annot;
annot = fz_new_derived_annot(ctx, pdf_annot);
annot->super.drop_annot = (fz_annot_drop_fn*)pdf_drop_annot_imp;
annot->super.bound_annot = (fz_annot_bound_fn*)pdf_bound_annot;
annot->super.run_annot = (fz_annot_run_fn*)pdf_run_annot;
annot->super.next_annot = (fz_annot_next_fn*)pdf_next_annot;
annot->page = page; /* only borrowed, as the page owns the annot */
annot->obj = pdf_keep_obj(ctx, obj);
return annot;
}
void
pdf_load_annots(fz_context *ctx, pdf_page *page, pdf_obj *annots)
{
pdf_document *doc = page->doc;
pdf_annot *annot;
pdf_obj *subtype;
int i, n;
n = pdf_array_len(ctx, annots);
for (i = 0; i < n; ++i)
{
pdf_obj *obj = pdf_array_get(ctx, annots, i);
if (obj)
{
subtype = pdf_dict_get(ctx, obj, PDF_NAME(Subtype));
if (pdf_name_eq(ctx, subtype, PDF_NAME(Link)))
continue;
if (pdf_name_eq(ctx, subtype, PDF_NAME(Popup)))
continue;
annot = pdf_new_annot(ctx, page, obj);
fz_try(ctx)
{
pdf_update_annot(ctx, annot);
annot->has_new_ap = 0;
}
fz_catch(ctx)
fz_warn(ctx, "could not update appearance for annotation");
if (doc->focus_obj == obj)
doc->focus = annot;
*page->annot_tailp = annot;
page->annot_tailp = &annot->next;
}
}
}
pdf_annot *
pdf_first_annot(fz_context *ctx, pdf_page *page)
{
return page ? page->annots : NULL;
}
pdf_annot *
pdf_next_annot(fz_context *ctx, pdf_annot *annot)
{
return annot ? annot->next : NULL;
}
fz_rect *
pdf_bound_annot(fz_context *ctx, pdf_annot *annot, fz_rect *rect)
{
pdf_obj *obj = pdf_dict_get(ctx, annot->obj, PDF_NAME(Rect));
fz_rect mediabox;
fz_matrix page_ctm;
pdf_to_rect(ctx, obj, rect);
pdf_page_transform(ctx, annot->page, &mediabox, &page_ctm);
fz_transform_rect(rect, &page_ctm);
return rect;
}
void
pdf_dirty_annot(fz_context *ctx, pdf_annot *annot)
{
annot->needs_new_ap = 1;
if (annot->page && annot->page->doc)
annot->page->doc->dirty = 1;
}
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