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-rw-r--r--source/pdf/pdf-page.c142
1 files changed, 71 insertions, 71 deletions
diff --git a/source/pdf/pdf-page.c b/source/pdf/pdf-page.c
index 7917afbf..588ba093 100644
--- a/source/pdf/pdf-page.c
+++ b/source/pdf/pdf-page.c
@@ -36,7 +36,7 @@ pdf_lookup_page_loc_imp(fz_context *ctx, pdf_document *doc, pdf_obj *node, int *
{
do
{
- kids = pdf_dict_gets(ctx, node, "Kids");
+ kids = pdf_dict_get(ctx, node, PDF_NAME_Kids);
len = pdf_array_len(ctx, kids);
if (len == 0)
@@ -62,10 +62,10 @@ pdf_lookup_page_loc_imp(fz_context *ctx, pdf_document *doc, pdf_obj *node, int *
for (i = 0; i < len; i++)
{
pdf_obj *kid = pdf_array_get(ctx, kids, i);
- char *type = pdf_to_name(ctx, pdf_dict_gets(ctx, kid, "Type"));
- if (*type ? !strcmp(type, "Pages") : pdf_dict_gets(ctx, kid, "Kids") && !pdf_dict_gets(ctx, kid, "MediaBox"))
+ pdf_obj *type = pdf_dict_get(ctx, kid, PDF_NAME_Type);
+ if (type ? pdf_name_eq(ctx, type, PDF_NAME_Pages) : pdf_dict_get(ctx, kid, PDF_NAME_Kids) && !pdf_dict_get(ctx, kid, PDF_NAME_MediaBox))
{
- int count = pdf_to_int(ctx, pdf_dict_gets(ctx, kid, "Count"));
+ int count = pdf_to_int(ctx, pdf_dict_get(ctx, kid, PDF_NAME_Count));
if (*skip < count)
{
node = kid;
@@ -78,8 +78,8 @@ pdf_lookup_page_loc_imp(fz_context *ctx, pdf_document *doc, pdf_obj *node, int *
}
else
{
- if (*type ? strcmp(type, "Page") != 0 : !pdf_dict_gets(ctx, kid, "MediaBox"))
- fz_warn(ctx, "non-page object in page tree (%s)", type);
+ if (type ? !pdf_name_eq(ctx, type, PDF_NAME_Page) != 0 : !pdf_dict_get(ctx, kid, PDF_NAME_MediaBox))
+ fz_warn(ctx, "non-page object in page tree (%s)", pdf_to_name(ctx, type));
if (*skip == 0)
{
if (parentp) *parentp = node;
@@ -114,8 +114,8 @@ pdf_lookup_page_loc_imp(fz_context *ctx, pdf_document *doc, pdf_obj *node, int *
pdf_obj *
pdf_lookup_page_loc(fz_context *ctx, pdf_document *doc, int needle, pdf_obj **parentp, int *indexp)
{
- pdf_obj *root = pdf_dict_gets(ctx, pdf_trailer(ctx, doc), "Root");
- pdf_obj *node = pdf_dict_gets(ctx, root, "Pages");
+ pdf_obj *root = pdf_dict_get(ctx, pdf_trailer(ctx, doc), PDF_NAME_Root);
+ pdf_obj *node = pdf_dict_get(ctx, root, PDF_NAME_Pages);
int skip = needle;
pdf_obj *hit;
@@ -137,16 +137,16 @@ pdf_lookup_page_obj(fz_context *ctx, pdf_document *doc, int needle)
static int
pdf_count_pages_before_kid(fz_context *ctx, pdf_document *doc, pdf_obj *parent, int kid_num)
{
- pdf_obj *kids = pdf_dict_gets(ctx, parent, "Kids");
+ pdf_obj *kids = pdf_dict_get(ctx, parent, PDF_NAME_Kids);
int i, total = 0, len = pdf_array_len(ctx, kids);
for (i = 0; i < len; i++)
{
pdf_obj *kid = pdf_array_get(ctx, kids, i);
if (pdf_to_num(ctx, kid) == kid_num)
return total;
- if (!strcmp(pdf_to_name(ctx, pdf_dict_gets(ctx, kid, "Type")), "Pages"))
+ if (pdf_name_eq(ctx, pdf_dict_get(ctx, kid, PDF_NAME_Type), PDF_NAME_Pages))
{
- pdf_obj *count = pdf_dict_gets(ctx, kid, "Count");
+ pdf_obj *count = pdf_dict_get(ctx, kid, PDF_NAME_Count);
int n = pdf_to_int(ctx, count);
if (!pdf_is_int(ctx, count) || n < 0)
fz_throw(ctx, FZ_ERROR_GENERIC, "illegal or missing count in pages tree");
@@ -165,10 +165,10 @@ pdf_lookup_page_number(fz_context *ctx, pdf_document *doc, pdf_obj *node)
int total = 0;
pdf_obj *parent, *parent2;
- if (strcmp(pdf_to_name(ctx, pdf_dict_gets(ctx, node, "Type")), "Page") != 0)
+ if (!pdf_name_eq(ctx, pdf_dict_get(ctx, node, PDF_NAME_Type), PDF_NAME_Page) != 0)
fz_throw(ctx, FZ_ERROR_GENERIC, "invalid page object");
- parent2 = parent = pdf_dict_gets(ctx, node, "Parent");
+ parent2 = parent = pdf_dict_get(ctx, node, PDF_NAME_Parent);
fz_var(parent);
fz_try(ctx)
{
@@ -178,7 +178,7 @@ pdf_lookup_page_number(fz_context *ctx, pdf_document *doc, pdf_obj *node)
fz_throw(ctx, FZ_ERROR_GENERIC, "cycle in page tree (parents)");
total += pdf_count_pages_before_kid(ctx, doc, parent, needle);
needle = pdf_to_num(ctx, parent);
- parent = pdf_dict_gets(ctx, parent, "Parent");
+ parent = pdf_dict_get(ctx, parent, PDF_NAME_Parent);
}
}
fz_always(ctx)
@@ -189,7 +189,7 @@ pdf_lookup_page_number(fz_context *ctx, pdf_document *doc, pdf_obj *node)
pdf_unmark_obj(ctx, parent2);
if (parent2 == parent)
break;
- parent2 = pdf_dict_gets(ctx, parent2, "Parent");
+ parent2 = pdf_dict_get(ctx, parent2, PDF_NAME_Parent);
}
}
fz_catch(ctx)
@@ -201,7 +201,7 @@ pdf_lookup_page_number(fz_context *ctx, pdf_document *doc, pdf_obj *node)
}
static pdf_obj *
-pdf_lookup_inherited_page_item(fz_context *ctx, pdf_document *doc, pdf_obj *node, const char *key)
+pdf_lookup_inherited_page_item(fz_context *ctx, pdf_document *doc, pdf_obj *node, pdf_obj *key)
{
pdf_obj *node2 = node;
pdf_obj *val;
@@ -212,12 +212,12 @@ pdf_lookup_inherited_page_item(fz_context *ctx, pdf_document *doc, pdf_obj *node
{
do
{
- val = pdf_dict_gets(ctx, node, key);
+ val = pdf_dict_get(ctx, node, key);
if (val)
break;
if (pdf_mark_obj(ctx, node))
fz_throw(ctx, FZ_ERROR_GENERIC, "cycle in page tree (parents)");
- node = pdf_dict_gets(ctx, node, "Parent");
+ node = pdf_dict_get(ctx, node, PDF_NAME_Parent);
}
while (node);
}
@@ -228,7 +228,7 @@ pdf_lookup_inherited_page_item(fz_context *ctx, pdf_document *doc, pdf_obj *node
pdf_unmark_obj(ctx, node2);
if (node2 == node)
break;
- node2 = pdf_dict_gets(ctx, node2, "Parent");
+ node2 = pdf_dict_get(ctx, node2, PDF_NAME_Parent);
}
while (node2);
}
@@ -247,8 +247,8 @@ static int pdf_resources_use_blending(fz_context *ctx, pdf_document *doc, pdf_ob
static int
pdf_extgstate_uses_blending(fz_context *ctx, pdf_document *doc, pdf_obj *dict)
{
- pdf_obj *obj = pdf_dict_gets(ctx, dict, "BM");
- if (pdf_is_name(ctx, obj) && strcmp(pdf_to_name(ctx, obj), "Normal"))
+ pdf_obj *obj = pdf_dict_get(ctx, dict, PDF_NAME_BM);
+ if (obj && !pdf_name_eq(ctx, obj, PDF_NAME_Normal))
return 1;
return 0;
}
@@ -257,18 +257,18 @@ static int
pdf_pattern_uses_blending(fz_context *ctx, pdf_document *doc, pdf_obj *dict)
{
pdf_obj *obj;
- obj = pdf_dict_gets(ctx, dict, "Resources");
+ obj = pdf_dict_get(ctx, dict, PDF_NAME_Resources);
if (pdf_resources_use_blending(ctx, doc, obj))
return 1;
- obj = pdf_dict_gets(ctx, dict, "ExtGState");
+ obj = pdf_dict_get(ctx, dict, PDF_NAME_ExtGState);
return pdf_extgstate_uses_blending(ctx, doc, obj);
}
static int
pdf_xobject_uses_blending(fz_context *ctx, pdf_document *doc, pdf_obj *dict)
{
- pdf_obj *obj = pdf_dict_gets(ctx, dict, "Resources");
- if (!strcmp(pdf_to_name(ctx, pdf_dict_getp(ctx, dict, "Group/S")), "Transparency"))
+ pdf_obj *obj = pdf_dict_get(ctx, dict, PDF_NAME_Resources);
+ if (pdf_name_eq(ctx, pdf_dict_getp(ctx, dict, "Group/S"), PDF_NAME_Transparency))
return 1;
return pdf_resources_use_blending(ctx, doc, obj);
}
@@ -292,19 +292,19 @@ pdf_resources_use_blending(fz_context *ctx, pdf_document *doc, pdf_obj *rdb)
fz_try(ctx)
{
- obj = pdf_dict_gets(ctx, rdb, "ExtGState");
+ obj = pdf_dict_get(ctx, rdb, PDF_NAME_ExtGState);
n = pdf_dict_len(ctx, obj);
for (i = 0; i < n; i++)
if (pdf_extgstate_uses_blending(ctx, doc, pdf_dict_get_val(ctx, obj, i)))
goto found;
- obj = pdf_dict_gets(ctx, rdb, "Pattern");
+ obj = pdf_dict_get(ctx, rdb, PDF_NAME_Pattern);
n = pdf_dict_len(ctx, obj);
for (i = 0; i < n; i++)
if (pdf_pattern_uses_blending(ctx, doc, pdf_dict_get_val(ctx, obj, i)))
goto found;
- obj = pdf_dict_gets(ctx, rdb, "XObject");
+ obj = pdf_dict_get(ctx, rdb, PDF_NAME_XObject);
n = pdf_dict_len(ctx, obj);
for (i = 0; i < n; i++)
if (pdf_xobject_uses_blending(ctx, doc, pdf_dict_get_val(ctx, obj, i)))
@@ -331,43 +331,43 @@ found:
static void
pdf_load_transition(fz_context *ctx, pdf_document *doc, pdf_page *page, pdf_obj *transdict)
{
- char *name;
+ pdf_obj *name;
pdf_obj *obj;
int type;
- obj = pdf_dict_gets(ctx, transdict, "D");
+ obj = pdf_dict_get(ctx, transdict, PDF_NAME_D);
page->transition.duration = (obj ? pdf_to_real(ctx, obj) : 1);
- page->transition.vertical = (pdf_to_name(ctx, pdf_dict_gets(ctx, transdict, "Dm"))[0] != 'H');
- page->transition.outwards = (pdf_to_name(ctx, pdf_dict_gets(ctx, transdict, "M"))[0] != 'I');
+ page->transition.vertical = !pdf_name_eq(ctx, pdf_dict_get(ctx, transdict, PDF_NAME_Dm), PDF_NAME_H);
+ page->transition.outwards = !pdf_name_eq(ctx, pdf_dict_get(ctx, transdict, PDF_NAME_M), PDF_NAME_I);
/* FIXME: If 'Di' is None, it should be handled differently, but
* this only affects Fly, and we don't implement that currently. */
- page->transition.direction = (pdf_to_int(ctx, pdf_dict_gets(ctx, transdict, "Di")));
+ page->transition.direction = (pdf_to_int(ctx, pdf_dict_get(ctx, transdict, PDF_NAME_Di)));
/* FIXME: Read SS for Fly when we implement it */
/* FIXME: Read B for Fly when we implement it */
- name = pdf_to_name(ctx, pdf_dict_gets(ctx, transdict, "S"));
- if (!strcmp(name, "Split"))
+ name = pdf_dict_get(ctx, transdict, PDF_NAME_S);
+ if (pdf_name_eq(ctx, name, PDF_NAME_Split))
type = FZ_TRANSITION_SPLIT;
- else if (!strcmp(name, "Blinds"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Blinds))
type = FZ_TRANSITION_BLINDS;
- else if (!strcmp(name, "Box"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Box))
type = FZ_TRANSITION_BOX;
- else if (!strcmp(name, "Wipe"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Wipe))
type = FZ_TRANSITION_WIPE;
- else if (!strcmp(name, "Dissolve"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Dissolve))
type = FZ_TRANSITION_DISSOLVE;
- else if (!strcmp(name, "Glitter"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Glitter))
type = FZ_TRANSITION_GLITTER;
- else if (!strcmp(name, "Fly"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Fly))
type = FZ_TRANSITION_FLY;
- else if (!strcmp(name, "Push"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Push))
type = FZ_TRANSITION_PUSH;
- else if (!strcmp(name, "Cover"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Cover))
type = FZ_TRANSITION_COVER;
- else if (!strcmp(name, "Uncover"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Uncover))
type = FZ_TRANSITION_UNCOVER;
- else if (!strcmp(name, "Fade"))
+ else if (pdf_name_eq(ctx, name, PDF_NAME_Fade))
type = FZ_TRANSITION_FADE;
else
type = FZ_TRANSITION_NONE;
@@ -464,13 +464,13 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
page->me = pdf_keep_obj(ctx, pageobj);
page->incomplete = 0;
- obj = pdf_dict_gets(ctx, pageobj, "UserUnit");
+ obj = pdf_dict_get(ctx, pageobj, PDF_NAME_UserUnit);
if (pdf_is_real(ctx, obj))
userunit = pdf_to_real(ctx, obj);
else
userunit = 1;
- pdf_to_rect(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, "MediaBox"), &mediabox);
+ pdf_to_rect(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, PDF_NAME_MediaBox), &mediabox);
if (fz_is_empty_rect(&mediabox))
{
fz_warn(ctx, "cannot find page size for page %d", number + 1);
@@ -480,7 +480,7 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
mediabox.y1 = 792;
}
- pdf_to_rect(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, "CropBox"), &cropbox);
+ pdf_to_rect(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, PDF_NAME_CropBox), &cropbox);
if (!fz_is_empty_rect(&cropbox))
fz_intersect_rect(&mediabox, &cropbox);
@@ -495,7 +495,7 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
page->mediabox = fz_unit_rect;
}
- page->rotate = pdf_to_int(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, "Rotate"));
+ page->rotate = pdf_to_int(ctx, pdf_lookup_inherited_page_item(ctx, doc, pageobj, PDF_NAME_Rotate));
/* Snap page->rotate to 0, 90, 180 or 270 */
if (page->rotate < 0)
page->rotate = 360 - ((-page->rotate) % 360);
@@ -513,7 +513,7 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
fz_try(ctx)
{
- obj = pdf_dict_gets(ctx, pageobj, "Annots");
+ obj = pdf_dict_get(ctx, pageobj, PDF_NAME_Annots);
if (obj)
{
page->links = pdf_load_link_annots(ctx, doc, obj, &page->ctm);
@@ -529,9 +529,9 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
page->links = NULL;
}
- page->duration = pdf_to_real(ctx, pdf_dict_gets(ctx, pageobj, "Dur"));
+ page->duration = pdf_to_real(ctx, pdf_dict_get(ctx, pageobj, PDF_NAME_Dur));
- obj = pdf_dict_gets(ctx, pageobj, "Trans");
+ obj = pdf_dict_get(ctx, pageobj, PDF_NAME_Trans);
page->transition_present = (obj != NULL);
if (obj)
{
@@ -539,18 +539,18 @@ pdf_load_page(fz_context *ctx, pdf_document *doc, int number)
}
// TODO: inherit
- page->resources = pdf_lookup_inherited_page_item(ctx, doc, pageobj, "Resources");
+ page->resources = pdf_lookup_inherited_page_item(ctx, doc, pageobj, PDF_NAME_Resources);
if (page->resources)
pdf_keep_obj(ctx, page->resources);
- obj = pdf_dict_gets(ctx, pageobj, "Contents");
+ obj = pdf_dict_get(ctx, pageobj, PDF_NAME_Contents);
fz_try(ctx)
{
page->contents = pdf_keep_obj(ctx, obj);
if (pdf_resources_use_blending(ctx, doc, page->resources))
page->transparency = 1;
- else if (!strcmp(pdf_to_name(ctx, pdf_dict_getp(ctx, pageobj, "Group/S")), "Transparency"))
+ else if (pdf_name_eq(ctx, pdf_dict_getp(ctx, pageobj, "Group/S"), PDF_NAME_Transparency))
page->transparency = 1;
for (annot = page->annots; annot && !page->transparency; annot = annot->next)
@@ -577,14 +577,14 @@ pdf_delete_page(fz_context *ctx, pdf_document *doc, int at)
int i;
pdf_lookup_page_loc(ctx, doc, at, &parent, &i);
- kids = pdf_dict_gets(ctx, parent, "Kids");
+ kids = pdf_dict_get(ctx, parent, PDF_NAME_Kids);
pdf_array_delete(ctx, kids, i);
while (parent)
{
- int count = pdf_to_int(ctx, pdf_dict_gets(ctx, parent, "Count"));
- pdf_dict_puts_drop(ctx, parent, "Count", pdf_new_int(ctx, doc, count - 1));
- parent = pdf_dict_gets(ctx, parent, "Parent");
+ int count = pdf_to_int(ctx, pdf_dict_get(ctx, parent, PDF_NAME_Count));
+ pdf_dict_put_drop(ctx, parent, PDF_NAME_Count, pdf_new_int(ctx, doc, count - 1));
+ parent = pdf_dict_get(ctx, parent, PDF_NAME_Parent);
}
doc->page_count = 0; /* invalidate cached value */
@@ -604,12 +604,12 @@ pdf_insert_page(fz_context *ctx, pdf_document *doc, pdf_page *page, int at)
{
if (count == 0)
{
- pdf_obj *root = pdf_dict_gets(ctx, pdf_trailer(ctx, doc), "Root");
- parent = pdf_dict_gets(ctx, root, "Pages");
+ pdf_obj *root = pdf_dict_get(ctx, pdf_trailer(ctx, doc), PDF_NAME_Root);
+ parent = pdf_dict_get(ctx, root, PDF_NAME_Pages);
if (!parent)
fz_throw(ctx, FZ_ERROR_GENERIC, "cannot find page tree");
- kids = pdf_dict_gets(ctx, parent, "Kids");
+ kids = pdf_dict_get(ctx, parent, PDF_NAME_Kids);
if (!kids)
fz_throw(ctx, FZ_ERROR_GENERIC, "malformed page tree");
@@ -625,25 +625,25 @@ pdf_insert_page(fz_context *ctx, pdf_document *doc, pdf_page *page, int at)
/* append after last page */
pdf_lookup_page_loc(ctx, doc, count - 1, &parent, &i);
- kids = pdf_dict_gets(ctx, parent, "Kids");
+ kids = pdf_dict_get(ctx, parent, PDF_NAME_Kids);
pdf_array_insert(ctx, kids, page_ref, i + 1);
}
else
{
/* insert before found page */
pdf_lookup_page_loc(ctx, doc, at, &parent, &i);
- kids = pdf_dict_gets(ctx, parent, "Kids");
+ kids = pdf_dict_get(ctx, parent, PDF_NAME_Kids);
pdf_array_insert(ctx, kids, page_ref, i);
}
- pdf_dict_puts(ctx, page->me, "Parent", parent);
+ pdf_dict_put(ctx, page->me, PDF_NAME_Parent, parent);
/* Adjust page counts */
while (parent)
{
- int count = pdf_to_int(ctx, pdf_dict_gets(ctx, parent, "Count"));
- pdf_dict_puts_drop(ctx, parent, "Count", pdf_new_int(ctx, doc, count + 1));
- parent = pdf_dict_gets(ctx, parent, "Parent");
+ int count = pdf_to_int(ctx, pdf_dict_get(ctx, parent, PDF_NAME_Count));
+ pdf_dict_put_drop(ctx, parent, PDF_NAME_Count, pdf_new_int(ctx, doc, count + 1));
+ parent = pdf_dict_get(ctx, parent, PDF_NAME_Parent);
}
}
@@ -686,13 +686,13 @@ pdf_create_page(fz_context *ctx, pdf_document *doc, fz_rect mediabox, int res, i
page->annots = NULL;
page->me = pageobj = pdf_new_dict(ctx, doc, 4);
- pdf_dict_puts_drop(ctx, pageobj, "Type", pdf_new_name(ctx, doc, "Page"));
+ pdf_dict_put_drop(ctx, pageobj, PDF_NAME_Type, PDF_NAME_Page);
page->mediabox.x0 = fz_min(mediabox.x0, mediabox.x1) * userunit;
page->mediabox.y0 = fz_min(mediabox.y0, mediabox.y1) * userunit;
page->mediabox.x1 = fz_max(mediabox.x0, mediabox.x1) * userunit;
page->mediabox.y1 = fz_max(mediabox.y0, mediabox.y1) * userunit;
- pdf_dict_puts_drop(ctx, pageobj, "MediaBox", pdf_new_rect(ctx, doc, &page->mediabox));
+ pdf_dict_put_drop(ctx, pageobj, PDF_NAME_MediaBox, pdf_new_rect(ctx, doc, &page->mediabox));
/* Snap page->rotate to 0, 90, 180 or 270 */
if (page->rotate < 0)
@@ -702,7 +702,7 @@ pdf_create_page(fz_context *ctx, pdf_document *doc, fz_rect mediabox, int res, i
page->rotate = 90*((page->rotate + 45)/90);
if (page->rotate > 360)
page->rotate = 0;
- pdf_dict_puts_drop(ctx, pageobj, "Rotate", pdf_new_int(ctx, doc, page->rotate));
+ pdf_dict_put_drop(ctx, pageobj, PDF_NAME_Rotate, pdf_new_int(ctx, doc, page->rotate));
fz_pre_rotate(fz_scale(&ctm, 1, -1), -page->rotate);
realbox = page->mediabox;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-01 22:52:12 +0000