392 lines
9.5 KiB
C
392 lines
9.5 KiB
C
|
#include "mupdf/fitz.h"
|
||
|
|
#include "mupdf/pdf.h"
|
||
|
|
|
||
|
|
static void
|
||
|
|
pdf_run_annot_with_usage(fz_context *ctx, pdf_document *doc, pdf_page *page, pdf_annot *annot, fz_device *dev, fz_matrix ctm, const char *usage, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
fz_matrix page_ctm;
|
||
|
|
fz_rect mediabox;
|
||
|
|
pdf_processor *proc = NULL;
|
||
|
|
fz_default_colorspaces *default_cs = NULL;
|
||
|
|
int flags;
|
||
|
|
|
||
|
|
fz_var(proc);
|
||
|
|
fz_var(default_cs);
|
||
|
|
|
||
|
|
if (cookie && page->super.incomplete)
|
||
|
|
cookie->incomplete = 1;
|
||
|
|
|
||
|
|
/* Widgets only get displayed if they have both a T and a TF flag,
|
||
|
|
* apparently */
|
||
|
|
if (pdf_name_eq(ctx, pdf_dict_get(ctx, annot->obj, PDF_NAME(Subtype)), PDF_NAME(Widget)))
|
||
|
|
{
|
||
|
|
pdf_obj *ft = pdf_dict_get_inheritable(ctx, annot->obj, PDF_NAME(FT));
|
||
|
|
pdf_obj *t = pdf_dict_get_inheritable(ctx, annot->obj, PDF_NAME(T));
|
||
|
|
|
||
|
|
if (ft == NULL || t == NULL)
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
default_cs = pdf_load_default_colorspaces(ctx, doc, page);
|
||
|
|
if (default_cs)
|
||
|
|
fz_set_default_colorspaces(ctx, dev, default_cs);
|
||
|
|
|
||
|
|
pdf_page_transform(ctx, page, &mediabox, &page_ctm);
|
||
|
|
|
||
|
|
flags = pdf_dict_get_int(ctx, annot->obj, PDF_NAME(F));
|
||
|
|
if (flags & PDF_ANNOT_IS_NO_ROTATE)
|
||
|
|
{
|
||
|
|
int rotate = pdf_to_int(ctx, pdf_dict_get_inheritable(ctx, page->obj, PDF_NAME(Rotate)));
|
||
|
|
fz_rect rect = pdf_dict_get_rect(ctx, annot->obj, PDF_NAME(Rect));
|
||
|
|
fz_point tp = fz_transform_point_xy(rect.x0, rect.y1, page_ctm);
|
||
|
|
page_ctm = fz_concat(page_ctm, fz_translate(-tp.x, -tp.y));
|
||
|
|
page_ctm = fz_concat(page_ctm, fz_rotate(-rotate));
|
||
|
|
page_ctm = fz_concat(page_ctm, fz_translate(tp.x, tp.y));
|
||
|
|
}
|
||
|
|
|
||
|
|
ctm = fz_concat(page_ctm, ctm);
|
||
|
|
|
||
|
|
proc = pdf_new_run_processor(ctx, dev, ctm, usage, NULL, default_cs, cookie);
|
||
|
|
pdf_process_annot(ctx, proc, doc, page, annot, cookie);
|
||
|
|
pdf_close_processor(ctx, proc);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
pdf_drop_processor(ctx, proc);
|
||
|
|
fz_drop_default_colorspaces(ctx, default_cs);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pdf_run_page_contents_with_usage(fz_context *ctx, pdf_document *doc, pdf_page *page, fz_device *dev, fz_matrix ctm, const char *usage, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
fz_matrix page_ctm;
|
||
|
|
pdf_obj *resources;
|
||
|
|
pdf_obj *contents;
|
||
|
|
fz_rect mediabox;
|
||
|
|
pdf_processor *proc = NULL;
|
||
|
|
fz_default_colorspaces *default_cs = NULL;
|
||
|
|
fz_colorspace *colorspace = NULL;
|
||
|
|
|
||
|
|
fz_var(proc);
|
||
|
|
fz_var(colorspace);
|
||
|
|
fz_var(default_cs);
|
||
|
|
|
||
|
|
if (cookie && page->super.incomplete)
|
||
|
|
cookie->incomplete = 1;
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
default_cs = pdf_load_default_colorspaces(ctx, doc, page);
|
||
|
|
if (default_cs)
|
||
|
|
fz_set_default_colorspaces(ctx, dev, default_cs);
|
||
|
|
|
||
|
|
pdf_page_transform(ctx, page, &mediabox, &page_ctm);
|
||
|
|
ctm = fz_concat(page_ctm, ctm);
|
||
|
|
mediabox = fz_transform_rect(mediabox, ctm);
|
||
|
|
|
||
|
|
resources = pdf_page_resources(ctx, page);
|
||
|
|
contents = pdf_page_contents(ctx, page);
|
||
|
|
|
||
|
|
if (page->transparency)
|
||
|
|
{
|
||
|
|
pdf_obj *group = pdf_page_group(ctx, page);
|
||
|
|
|
||
|
|
if (group)
|
||
|
|
{
|
||
|
|
pdf_obj *cs = pdf_dict_get(ctx, group, PDF_NAME(CS));
|
||
|
|
if (cs)
|
||
|
|
{
|
||
|
|
fz_try(ctx)
|
||
|
|
colorspace = pdf_load_colorspace(ctx, cs);
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow_if(ctx, FZ_ERROR_TRYLATER);
|
||
|
|
fz_warn(ctx, "Ignoring Page blending colorspace.");
|
||
|
|
}
|
||
|
|
if (!fz_is_valid_blend_colorspace(ctx, colorspace))
|
||
|
|
{
|
||
|
|
fz_warn(ctx, "Ignoring invalid Page blending colorspace: %s.", colorspace->name);
|
||
|
|
fz_drop_colorspace(ctx, colorspace);
|
||
|
|
colorspace = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
colorspace = fz_keep_colorspace(ctx, fz_default_output_intent(ctx, default_cs));
|
||
|
|
|
||
|
|
fz_begin_group(ctx, dev, mediabox, colorspace, 1, 0, 0, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
proc = pdf_new_run_processor(ctx, dev, ctm, usage, NULL, default_cs, cookie);
|
||
|
|
pdf_process_contents(ctx, proc, doc, resources, contents, cookie);
|
||
|
|
pdf_close_processor(ctx, proc);
|
||
|
|
|
||
|
|
if (page->transparency)
|
||
|
|
{
|
||
|
|
fz_end_group(ctx, dev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
pdf_drop_processor(ctx, proc);
|
||
|
|
fz_drop_colorspace(ctx, colorspace);
|
||
|
|
fz_drop_default_colorspaces(ctx, default_cs);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Interpret a loaded page and render it on a device.
|
||
|
|
Just the main page contents without the annotations
|
||
|
|
|
||
|
|
page: A page loaded by pdf_load_page.
|
||
|
|
|
||
|
|
dev: Device used for rendering, obtained from fz_new_*_device.
|
||
|
|
|
||
|
|
ctm: A transformation matrix applied to the objects on the page,
|
||
|
|
e.g. to scale or rotate the page contents as desired.
|
||
|
|
*/
|
||
|
|
void pdf_run_page_contents(fz_context *ctx, pdf_page *page, fz_device *dev, fz_matrix ctm, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_document *doc = page->doc;
|
||
|
|
int nocache;
|
||
|
|
|
||
|
|
nocache = !!(dev->hints & FZ_NO_CACHE);
|
||
|
|
if (nocache)
|
||
|
|
pdf_mark_xref(ctx, doc);
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_run_page_contents_with_usage(ctx, doc, page, dev, ctm, "View", cookie);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (nocache)
|
||
|
|
pdf_clear_xref_to_mark(ctx, doc);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Interpret an annotation and render it on a device.
|
||
|
|
|
||
|
|
page: A page loaded by pdf_load_page.
|
||
|
|
|
||
|
|
annot: an annotation.
|
||
|
|
|
||
|
|
dev: Device used for rendering, obtained from fz_new_*_device.
|
||
|
|
|
||
|
|
ctm: A transformation matrix applied to the objects on the page,
|
||
|
|
e.g. to scale or rotate the page contents as desired.
|
||
|
|
*/
|
||
|
|
void pdf_run_annot(fz_context *ctx, pdf_annot *annot, fz_device *dev, fz_matrix ctm, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_page *page = annot->page;
|
||
|
|
pdf_document *doc = page->doc;
|
||
|
|
int nocache;
|
||
|
|
|
||
|
|
nocache = !!(dev->hints & FZ_NO_CACHE);
|
||
|
|
if (nocache)
|
||
|
|
pdf_mark_xref(ctx, doc);
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_run_annot_with_usage(ctx, doc, page, annot, dev, ctm, "View", cookie);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (nocache)
|
||
|
|
pdf_clear_xref_to_mark(ctx, doc);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pdf_run_page_widgets_with_usage(fz_context *ctx, pdf_document *doc, pdf_page *page, fz_device *dev, fz_matrix ctm, const char *usage, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_widget *widget;
|
||
|
|
|
||
|
|
if (cookie && cookie->progress_max != -1)
|
||
|
|
{
|
||
|
|
int count = 1;
|
||
|
|
for (widget = page->widgets; widget; widget = widget->next)
|
||
|
|
count++;
|
||
|
|
cookie->progress_max += count;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (widget = page->widgets; widget; widget = widget->next)
|
||
|
|
{
|
||
|
|
/* Check the cookie for aborting */
|
||
|
|
if (cookie)
|
||
|
|
{
|
||
|
|
if (cookie->abort)
|
||
|
|
break;
|
||
|
|
cookie->progress++;
|
||
|
|
}
|
||
|
|
|
||
|
|
pdf_run_annot_with_usage(ctx, doc, page, widget, dev, ctm, usage, cookie);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pdf_run_page_annots_with_usage(fz_context *ctx, pdf_document *doc, pdf_page *page, fz_device *dev, fz_matrix ctm, const char *usage, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_annot *annot;
|
||
|
|
|
||
|
|
if (cookie && cookie->progress_max != -1)
|
||
|
|
{
|
||
|
|
int count = 1;
|
||
|
|
for (annot = page->annots; annot; annot = annot->next)
|
||
|
|
count++;
|
||
|
|
cookie->progress_max += count;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (annot = page->annots; annot; annot = annot->next)
|
||
|
|
{
|
||
|
|
/* Check the cookie for aborting */
|
||
|
|
if (cookie)
|
||
|
|
{
|
||
|
|
if (cookie->abort)
|
||
|
|
break;
|
||
|
|
cookie->progress++;
|
||
|
|
}
|
||
|
|
|
||
|
|
pdf_run_annot_with_usage(ctx, doc, page, annot, dev, ctm, usage, cookie);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void pdf_run_page_annots(fz_context *ctx, pdf_page *page, fz_device *dev, fz_matrix ctm, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_document *doc = page->doc;
|
||
|
|
int nocache;
|
||
|
|
|
||
|
|
nocache = !!(dev->hints & FZ_NO_CACHE);
|
||
|
|
if (nocache)
|
||
|
|
pdf_mark_xref(ctx, doc);
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_run_page_annots_with_usage(ctx, doc, page, dev, ctm, "View", cookie);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (nocache)
|
||
|
|
pdf_clear_xref_to_mark(ctx, doc);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void pdf_run_page_widgets(fz_context *ctx, pdf_page *page, fz_device *dev, fz_matrix ctm, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_document *doc = page->doc;
|
||
|
|
int nocache;
|
||
|
|
|
||
|
|
nocache = !!(dev->hints & FZ_NO_CACHE);
|
||
|
|
if (nocache)
|
||
|
|
pdf_mark_xref(ctx, doc);
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_run_page_widgets_with_usage(ctx, doc, page, dev, ctm, "View", cookie);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (nocache)
|
||
|
|
pdf_clear_xref_to_mark(ctx, doc);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Interpret a loaded page and render it on a device.
|
||
|
|
|
||
|
|
page: A page loaded by pdf_load_page.
|
||
|
|
|
||
|
|
dev: Device used for rendering, obtained from fz_new_*_device.
|
||
|
|
|
||
|
|
ctm: A transformation matrix applied to the objects on the page,
|
||
|
|
e.g. to scale or rotate the page contents as desired.
|
||
|
|
|
||
|
|
usage: The 'usage' for displaying the file (typically
|
||
|
|
'View', 'Print' or 'Export'). NULL means 'View'.
|
||
|
|
|
||
|
|
cookie: A pointer to an optional fz_cookie structure that can be used
|
||
|
|
to track progress, collect errors etc.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
pdf_run_page_with_usage(fz_context *ctx, pdf_document *doc, pdf_page *page, fz_device *dev, fz_matrix ctm, const char *usage, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
int nocache = !!(dev->hints & FZ_NO_CACHE);
|
||
|
|
|
||
|
|
if (nocache)
|
||
|
|
pdf_mark_xref(ctx, doc);
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_run_page_contents_with_usage(ctx, doc, page, dev, ctm, usage, cookie);
|
||
|
|
pdf_run_page_annots_with_usage(ctx, doc, page, dev, ctm, usage, cookie);
|
||
|
|
pdf_run_page_widgets_with_usage(ctx, doc, page, dev, ctm, usage, cookie);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
if (nocache)
|
||
|
|
pdf_clear_xref_to_mark(ctx, doc);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Interpret a loaded page and render it on a device.
|
||
|
|
|
||
|
|
page: A page loaded by pdf_load_page.
|
||
|
|
|
||
|
|
dev: Device used for rendering, obtained from fz_new_*_device.
|
||
|
|
|
||
|
|
ctm: A transformation matrix applied to the objects on the page,
|
||
|
|
e.g. to scale or rotate the page contents as desired.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
pdf_run_page(fz_context *ctx, pdf_page *page, fz_device *dev, fz_matrix ctm, fz_cookie *cookie)
|
||
|
|
{
|
||
|
|
pdf_document *doc = page->doc;
|
||
|
|
pdf_run_page_with_usage(ctx, doc, page, dev, ctm, "View", cookie);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pdf_run_glyph(fz_context *ctx, pdf_document *doc, pdf_obj *resources, fz_buffer *contents, fz_device *dev, fz_matrix ctm, void *gstate, fz_default_colorspaces *default_cs)
|
||
|
|
{
|
||
|
|
pdf_processor *proc;
|
||
|
|
|
||
|
|
proc = pdf_new_run_processor(ctx, dev, ctm, "View", gstate, default_cs, NULL);
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
pdf_process_glyph(ctx, proc, doc, resources, contents);
|
||
|
|
pdf_close_processor(ctx, proc);
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
pdf_drop_processor(ctx, proc);
|
||
|
|
fz_catch(ctx)
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|