diff options
Diffstat (limited to 'source/pdf/pdf-annot-edit.c')
| -rw-r--r-- | source/pdf/pdf-annot-edit.c | 163 |
1 files changed, 66 insertions, 97 deletions
diff --git a/source/pdf/pdf-annot-edit.c b/source/pdf/pdf-annot-edit.c index c06fa05a..55821e4f 100644 --- a/source/pdf/pdf-annot-edit.c +++ b/source/pdf/pdf-annot-edit.c @@ -1275,113 +1275,82 @@ pdf_set_annot_author(fz_context *ctx, pdf_annot *annot, const char *author) pdf_dirty_annot(ctx, annot); } -static void find_free_font_name(fz_context *ctx, pdf_obj *fdict, char *buf, int buf_size) +void +pdf_parse_default_appearance(fz_context *ctx, const char *da, const char **font, float *size, float color[3]) { - int i; + char buf[100], *p = buf, *tok, *end; + float stack[3] = { 0, 0, 0 }; + int top = 0; - /* Find a number X such that /FX doesn't occur as a key in fdict */ - for (i = 0; 1; i++) - { - fz_snprintf(buf, buf_size, "F%d", i); + *font = "Helv"; + *size = 12; + color[0] = color[1] = color[2] = 0; - if (!pdf_dict_gets(ctx, fdict, buf)) - break; + fz_strlcpy(buf, da, sizeof buf); + while ((tok = fz_strsep(&p, " ")) != NULL) + { + if (tok[0] == 0) + ; + else if (tok[0] == '/') + { + if (!strcmp(tok+1, "Cour")) *font = "Cour"; + if (!strcmp(tok+1, "Helv")) *font = "Helv"; + if (!strcmp(tok+1, "TiRo")) *font = "TiRo"; + if (!strcmp(tok+1, "Symb")) *font = "Symb"; + if (!strcmp(tok+1, "ZaDb")) *font = "ZaDb"; + } + else if (!strcmp(tok, "Tf")) + { + *size = stack[0]; + top = 0; + } + else if (!strcmp(tok, "g")) + { + color[0] = color[1] = color[2] = stack[0]; + top = 0; + } + else if (!strcmp(tok, "rg")) + { + color[0] = stack[0]; + color[1] = stack[1]; + color[2] = stack[2]; + top=0; + } + else + { + if (top < 3) + stack[top] = fz_strtof(tok, &end); + if (*end == 0) + ++top; + else + top = 0; + } } } 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_print_default_appearance(fz_context *ctx, char *buf, int nbuf, const char *font, float size, const 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); + if (color[0] > 0 || color[1] > 0 || color[2] > 0) + fz_snprintf(buf, nbuf, "/%s %g Tf %g %g %g rg", font, size, color[0], color[1], color[2]); + else + fz_snprintf(buf, nbuf, "/%s %g Tf", font, size); +} - page_pos = *pos; - fz_transform_point(&page_pos, &inv_page_ctm); +void +pdf_annot_default_appearance(fz_context *ctx, pdf_annot *annot, const char **font, float *size, float color[3]) +{ + pdf_obj *da = pdf_dict_get(ctx, annot->obj, PDF_NAME(DA)); + pdf_parse_default_appearance(ctx, pdf_to_str_buf(ctx, da), font, size, color); +} - bounds.x0 *= font_size; - bounds.x1 *= font_size; - bounds.y0 *= font_size; - bounds.y1 *= font_size; +void +pdf_set_annot_default_appearance(fz_context *ctx, pdf_annot *annot, const char *font, float size, const float color[3]) +{ + char buf[100]; - bounds.x0 += page_pos.x; - bounds.x1 += page_pos.x; - bounds.y0 += page_pos.y; - bounds.y1 += page_pos.y; + pdf_print_default_appearance(ctx, buf, sizeof buf, font, size, color); - 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); - } + pdf_dict_put_string(ctx, annot->obj, PDF_NAME(DA), buf, strlen(buf)); + pdf_dirty_annot(ctx, annot); } |