void
pdf_update_xobject(fz_context *ctx, pdf_document *doc, pdf_obj *form, fz_rect bbox, fz_matrix matrix, pdf_obj *res, fz_buffer *contents)
{
pdf_dict_put_rect(ctx, form, PDF_NAME(BBox), bbox);
pdf_dict_put_matrix(ctx, form, PDF_NAME(Matrix), matrix);
if (res)
pdf_dict_put(ctx, form, PDF_NAME(Resources), res);
else
pdf_dict_del(ctx, form, PDF_NAME(Resources));
pdf_update_stream(ctx, doc, form, contents, 0);
}
void
pdf_set_annot_rect(fz_context *ctx, pdf_annot *annot, const fz_rect *rect)
{
fz_rect trect = *rect;
fz_matrix page_ctm, inv_page_ctm;
pdf_page_transform(ctx, annot->page, NULL, &page_ctm);
fz_invert_matrix(&inv_page_ctm, &page_ctm);
fz_transform_rect(&trect, &inv_page_ctm);
pdf_dict_put_rect(ctx, annot->obj, PDF_NAME(Rect), &trect);
pdf_dirty_annot(ctx, annot);
}
pdf_obj *
pdf_new_xobject(fz_context *ctx, pdf_document *doc, fz_rect bbox, fz_matrix matrix, pdf_obj *res, fz_buffer *contents)
{
pdf_obj *ind = NULL;
pdf_obj *form = pdf_new_dict(ctx, doc, 5);
fz_try(ctx)
{
pdf_dict_put(ctx, form, PDF_NAME(Type), PDF_NAME(XObject));
pdf_dict_put(ctx, form, PDF_NAME(Subtype), PDF_NAME(Form));
pdf_dict_put_rect(ctx, form, PDF_NAME(BBox), bbox);
pdf_dict_put_matrix(ctx, form, PDF_NAME(Matrix), matrix);
if (res)
pdf_dict_put(ctx, form, PDF_NAME(Resources), res);
ind = pdf_add_stream(ctx, doc, contents, form, 0);
}
fz_always(ctx)
pdf_drop_obj(ctx, form);
fz_catch(ctx)
fz_rethrow(ctx);
return ind;
}
void
pdf_set_text_annot_position(fz_context *ctx, pdf_annot *annot, fz_point pt)
{
fz_matrix page_ctm, inv_page_ctm;
fz_rect rect;
int flags;
pdf_page_transform(ctx, annot->page, NULL, &page_ctm);
fz_invert_matrix(&inv_page_ctm, &page_ctm);
rect.x0 = pt.x;
rect.x1 = pt.x + TEXT_ANNOT_SIZE;
rect.y0 = pt.y;
rect.y1 = pt.y + TEXT_ANNOT_SIZE;
fz_transform_rect(&rect, &inv_page_ctm);
pdf_dict_put_rect(ctx, annot->obj, PDF_NAME(Rect), &rect);
flags = pdf_dict_get_int(ctx, annot->obj, PDF_NAME(F));
flags |= (PDF_ANNOT_IS_NO_ZOOM|PDF_ANNOT_IS_NO_ROTATE);
pdf_dict_put_int(ctx, annot->obj, PDF_NAME(F), flags);
}
void
pdf_set_free_text_details(fz_context *ctx, pdf_annot *annot, fz_point *pos, char *text, char *font_name, float font_size, float color[3])
{
pdf_document *doc = annot->page->doc;
char nbuf[32];
pdf_obj *dr;
pdf_obj *form_fonts;
pdf_obj *font = NULL;
pdf_obj *ref;
pdf_font_desc *font_desc = NULL;
fz_matrix page_ctm, inv_page_ctm;
pdf_da_info da_info;
fz_buffer *fzbuf = NULL;
fz_point page_pos;
pdf_page_transform(ctx, annot->page, NULL, &page_ctm);
fz_invert_matrix(&inv_page_ctm, &page_ctm);
dr = pdf_dict_get(ctx, annot->page->obj, PDF_NAME(Resources));
if (!dr)
{
dr = pdf_new_dict(ctx, doc, 1);
pdf_dict_put_drop(ctx, annot->page->obj, PDF_NAME(Resources), dr);
}
/* Ensure the resource dictionary includes a font dict */
form_fonts = pdf_dict_get(ctx, dr, PDF_NAME(Font));
if (!form_fonts)
{
form_fonts = pdf_new_dict(ctx, doc, 1);
pdf_dict_put_drop(ctx, dr, PDF_NAME(Font), form_fonts);
/* form_fonts is still valid if execution continues past the above call */
}
fz_var(fzbuf);
fz_var(font);
fz_try(ctx)
{
unsigned char *da_str;
size_t da_len;
fz_rect bounds;
find_free_font_name(ctx, form_fonts, nbuf, sizeof(nbuf));
font = pdf_new_dict(ctx, doc, 5);
ref = pdf_add_object(ctx, doc, font);
pdf_dict_puts_drop(ctx, form_fonts, nbuf, ref);
pdf_dict_put(ctx, font, PDF_NAME(Type), PDF_NAME(Font));
pdf_dict_put(ctx, font, PDF_NAME(Subtype), PDF_NAME(Type1));
pdf_dict_put_name(ctx, font, PDF_NAME(BaseFont), font_name);
pdf_dict_put(ctx, font, PDF_NAME(Encoding), PDF_NAME(WinAnsiEncoding));
memcpy(da_info.col, color, sizeof(float)*3);
da_info.col_size = 3;
da_info.font_name = nbuf;
da_info.font_size = font_size;
fzbuf = fz_new_buffer(ctx, 0);
pdf_fzbuf_print_da(ctx, fzbuf, &da_info);
da_len = fz_buffer_storage(ctx, fzbuf, &da_str);
pdf_dict_put_string(ctx, annot->obj, PDF_NAME(DA), (char *)da_str, da_len);
/* FIXME: should convert to WinAnsiEncoding */
pdf_dict_put_text_string(ctx, annot->obj, PDF_NAME(Contents), text);
font_desc = pdf_load_font(ctx, doc, NULL, font, 0);
pdf_measure_text(ctx, font_desc, (unsigned char *)text, strlen(text), &bounds);
page_pos = *pos;
fz_transform_point(&page_pos, &inv_page_ctm);
bounds.x0 *= font_size;
bounds.x1 *= font_size;
bounds.y0 *= font_size;
bounds.y1 *= font_size;
bounds.x0 += page_pos.x;
bounds.x1 += page_pos.x;
bounds.y0 += page_pos.y;
bounds.y1 += page_pos.y;
pdf_dict_put_rect(ctx, annot->obj, PDF_NAME(Rect), &bounds);
}
fz_always(ctx)
{
pdf_drop_obj(ctx, font);
fz_drop_buffer(ctx, fzbuf);
pdf_drop_font(ctx, font_desc);
}
fz_catch(ctx)
{
fz_rethrow(ctx);
}
}
