109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
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#include "mupdf/fitz.h"
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#include "mupdf/pdf.h"
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pdf_obj *
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pdf_xobject_resources(fz_context *ctx, pdf_obj *xobj)
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{
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return pdf_dict_get(ctx, xobj, PDF_NAME(Resources));
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}
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fz_rect
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pdf_xobject_bbox(fz_context *ctx, pdf_obj *xobj)
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{
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return pdf_dict_get_rect(ctx, xobj, PDF_NAME(BBox));
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}
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fz_matrix
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pdf_xobject_matrix(fz_context *ctx, pdf_obj *xobj)
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{
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return pdf_dict_get_matrix(ctx, xobj, PDF_NAME(Matrix));
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}
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int pdf_xobject_isolated(fz_context *ctx, pdf_obj *xobj)
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{
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pdf_obj *group = pdf_dict_get(ctx, xobj, PDF_NAME(Group));
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if (group)
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return pdf_dict_get_bool(ctx, group, PDF_NAME(I));
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return 0;
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}
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int pdf_xobject_knockout(fz_context *ctx, pdf_obj *xobj)
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{
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pdf_obj *group = pdf_dict_get(ctx, xobj, PDF_NAME(Group));
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if (group)
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return pdf_dict_get_bool(ctx, group, PDF_NAME(K));
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return 0;
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}
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int pdf_xobject_transparency(fz_context *ctx, pdf_obj *xobj)
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{
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pdf_obj *group = pdf_dict_get(ctx, xobj, PDF_NAME(Group));
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if (group)
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if (pdf_name_eq(ctx, pdf_dict_get(ctx, group, PDF_NAME(S)), PDF_NAME(Transparency)))
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return 1;
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return 0;
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}
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fz_colorspace *
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pdf_xobject_colorspace(fz_context *ctx, pdf_obj *xobj)
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{
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pdf_obj *group = pdf_dict_get(ctx, xobj, PDF_NAME(Group));
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if (group)
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{
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pdf_obj *cs = pdf_dict_get(ctx, group, PDF_NAME(CS));
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if (cs)
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{
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fz_colorspace *colorspace = NULL;
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fz_try(ctx)
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colorspace = pdf_load_colorspace(ctx, cs);
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fz_catch(ctx)
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{
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fz_rethrow_if(ctx, FZ_ERROR_TRYLATER);
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fz_warn(ctx, "Ignoring XObject blending colorspace.");
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}
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if (!fz_is_valid_blend_colorspace(ctx, colorspace))
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{
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fz_warn(ctx, "Ignoring invalid XObject blending colorspace: %s.", colorspace->name);
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fz_drop_colorspace(ctx, colorspace);
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return NULL;
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}
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return colorspace;
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}
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}
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return NULL;
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}
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pdf_obj *
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pdf_new_xobject(fz_context *ctx, pdf_document *doc, fz_rect bbox, fz_matrix matrix, pdf_obj *res, fz_buffer *contents)
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{
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pdf_obj *ind = NULL;
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pdf_obj *form = pdf_new_dict(ctx, doc, 5);
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fz_try(ctx)
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{
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pdf_dict_put(ctx, form, PDF_NAME(Type), PDF_NAME(XObject));
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pdf_dict_put(ctx, form, PDF_NAME(Subtype), PDF_NAME(Form));
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pdf_dict_put_rect(ctx, form, PDF_NAME(BBox), bbox);
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pdf_dict_put_matrix(ctx, form, PDF_NAME(Matrix), matrix);
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if (res)
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pdf_dict_put(ctx, form, PDF_NAME(Resources), res);
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ind = pdf_add_stream(ctx, doc, contents, form, 0);
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}
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fz_always(ctx)
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pdf_drop_obj(ctx, form);
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fz_catch(ctx)
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fz_rethrow(ctx);
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return ind;
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}
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void
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pdf_update_xobject(fz_context *ctx, pdf_document *doc, pdf_obj *form, fz_rect bbox, fz_matrix matrix, pdf_obj *res, fz_buffer *contents)
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{
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pdf_dict_put_rect(ctx, form, PDF_NAME(BBox), bbox);
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pdf_dict_put_matrix(ctx, form, PDF_NAME(Matrix), matrix);
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if (res)
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pdf_dict_put(ctx, form, PDF_NAME(Resources), res);
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else
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pdf_dict_del(ctx, form, PDF_NAME(Resources));
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pdf_update_stream(ctx, doc, form, contents, 0);
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}
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