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Code Issues Releases Wiki Activity

Back out fluent QPDFObjectHandle methods. Keep the andGet methods.

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I decided these were confusing and inconsistent with how JSON works.
They muddle the API rather than improving it.
This commit is contained in:
Jay Berkenbilt 2022-05-17 18:28:50 -04:00
parent 7e7a9c4379
commit 56f1b411fe
16 changed files with 149 additions and 164 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
View File

@ -86,15 +86,12 @@
2022-04-29 Jay Berkenbilt <ejb@ql.org>
* QPDFObjectHandle: for the methods insertItem, appendItem,
eraseItem, replaceKey, and removeKey, have the methods return a
reference to the original object, making a fluent interface to
initializing or modifying QPDFObjectHandle possible. Also, for
each one, add a corresponding "AndGet" method (insertItemAndGet,
appendItemAndGet, eraseItemAndGet, replaceKeyAndGet, and
removeKeyAndGet) that returns the newly inserted, replaced, or
removed item. This makes it possible to create a new object, add
it to an array or dictionary, and get a handle to it all in one
line.
eraseItem, replaceKey, and removeKey, add a corresponding "AndGet"
method (insertItemAndGet, appendItemAndGet, eraseItemAndGet,
replaceKeyAndGet, and removeKeyAndGet) that returns the newly
inserted, replaced, or removed item. This makes it possible to
create a new object, add it to an array or dictionary, and get a
handle to it all in one line.
2022-04-24 Jay Berkenbilt <ejb@ql.org>

8
examples/pdf-attach-file.cc
View File

@ -106,10 +106,10 @@ process(
// apdict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"));
// apdict.replaceKey("/Subtype", QPDFObjectHandle::newName("/Form"));
// apdict.replaceKey("/BBox", QPDFObjectHandle::parse("[ 0 0 20 20 ]"));
apdict.replaceKey("/Resources", "<< >>"_qpdf)
.replaceKey("/Type", "/XObject"_qpdf)
.replaceKey("/Subtype", "/Form"_qpdf)
.replaceKey("/BBox", "[ 0 0 20 20 ]"_qpdf);
apdict.replaceKey("/Resources", "<< >>"_qpdf);
apdict.replaceKey("/Type", "/XObject"_qpdf);
apdict.replaceKey("/Subtype", "/Form"_qpdf);
apdict.replaceKey("/BBox", "[ 0 0 20 20 ]"_qpdf);
auto annot = q.makeIndirectObject(QPDFObjectHandle::parse(
&q,
("<<"

15
examples/pdf-create.cc
View File

@ -181,9 +181,9 @@ add_page(
" /Subtype /Image"
" /BitsPerComponent 8"
">>"_qpdf;
image_dict.replaceKey("/ColorSpace", newName(color_space))
.replaceKey("/Width", newInteger(width))
.replaceKey("/Height", newInteger(height));
image_dict.replaceKey("/ColorSpace", newName(color_space));
image_dict.replaceKey("/Width", newInteger(width));
image_dict.replaceKey("/Height", newInteger(height));
image.replaceDict(image_dict);
// Provide the stream data.
@ -200,9 +200,9 @@ add_page(
xobject.replaceKey("/Im1", image);
QPDFObjectHandle resources = QPDFObjectHandle::newDictionary();
resources.replaceKey("/ProcSet", procset)
.replaceKey("/Font", rfont)
.replaceKey("/XObject", xobject);
resources.replaceKey("/ProcSet", procset);
resources.replaceKey("/Font", rfont);
resources.replaceKey("/XObject", xobject);
// Create the page content stream
QPDFObjectHandle contents =
@ -213,7 +213,8 @@ add_page(
" /Type /Page"
" /MediaBox [0 0 612 392]"
">>"_qpdf);
page.replaceKey("/Contents", contents).replaceKey("/Resources", resources);
page.replaceKey("/Contents", contents);
page.replaceKey("/Resources", resources);
// Add the page to the PDF file
dh.addPage(page, false);

26
include/qpdf/QPDFObjectHandle.hh
View File

@ -1024,25 +1024,22 @@ class QPDFObjectHandle
void setArrayFromVector(std::vector<QPDFObjectHandle> const& items);
// Insert an item before the item at the given position ("at") so
// that it has that position after insertion. If "at" is equal to
// the size of the array, insert the item at the end. Return a
// reference to the array (not the new item).
// the size of the array, insert the item at the end.
QPDF_DLL
QPDFObjectHandle& insertItem(int at, QPDFObjectHandle const& item);
void insertItem(int at, QPDFObjectHandle const& item);
// Like insertItem but return the item that was inserted.
QPDF_DLL
QPDFObjectHandle insertItemAndGet(int at, QPDFObjectHandle const& item);
// Append an item, and return a reference to the original array
// (not the new item).
// Append an item to an array.
QPDF_DLL
QPDFObjectHandle& appendItem(QPDFObjectHandle const& item);
void appendItem(QPDFObjectHandle const& item);
// Append an item, and return the newly added item.
QPDF_DLL
QPDFObjectHandle appendItemAndGet(QPDFObjectHandle const& item);
// Remove the item at that position, reducing the size of the
// array by one. Return a reference the original array (not the
// item that was removed).
// array by one.
QPDF_DLL
QPDFObjectHandle& eraseItem(int at);
void eraseItem(int at);
// Erase and item and return the item that was removed.
QPDF_DLL
QPDFObjectHandle eraseItemAndGet(int at);
@ -1050,19 +1047,16 @@ class QPDFObjectHandle
// Mutator methods for dictionary objects
// Replace value of key, adding it if it does not exist. If value
// is null, remove the key. Return a reference to the original
// dictionary (not the new item).
// is null, remove the key.
QPDF_DLL
QPDFObjectHandle&
replaceKey(std::string const& key, QPDFObjectHandle const& value);
void replaceKey(std::string const& key, QPDFObjectHandle const& value);
// Replace value of key and return the value.
QPDF_DLL
QPDFObjectHandle
replaceKeyAndGet(std::string const& key, QPDFObjectHandle const& value);
// Remove key, doing nothing if key does not exist. Return the
// original dictionary (not the removed item).
// Remove key, doing nothing if key does not exist.
QPDF_DLL
QPDFObjectHandle& removeKey(std::string const& key);
void removeKey(std::string const& key);
// Remove key and return the old value. If the old value didn't
// exist, return a null object.
QPDF_DLL

17
libqpdf/NNTree.cc
View File

@ -208,8 +208,9 @@ NNTreeIterator::resetLimits(
}
}
if (first.isInitialized() && last.isInitialized()) {
auto limits =
QPDFObjectHandle::newArray().appendItem(first).appendItem(last);
auto limits = QPDFObjectHandle::newArray();
limits.appendItem(first);
limits.appendItem(last);
auto olimits = node.getKey("/Limits");
if (olimits.isArray() && (olimits.getArrayNItems() == 2)) {
auto ofirst = olimits.getArrayItem(0);
@ -340,10 +341,9 @@ NNTreeIterator::split(
first_node.replaceKey(key, first_half);
QPDFObjectHandle new_kids = QPDFObjectHandle::newArray();
new_kids.appendItem(first_node);
to_split
.removeKey("/Limits") // already shouldn't be there for root
.removeKey(impl.details.itemsKey())
.replaceKey("/Kids", new_kids);
to_split.removeKey("/Limits"); // already shouldn't be there for root
to_split.removeKey(impl.details.itemsKey());
to_split.replaceKey("/Kids", new_kids);
if (is_leaf) {
QTC::TC("qpdf", "NNTree split root + leaf");
this->node = first_node;
@ -884,8 +884,9 @@ NNTreeImpl::repair()
for (auto const& i: *this) {
repl.insert(i.first, i.second);
}
this->oh.replaceKey("/Kids", new_node.getKey("/Kids"))
.replaceKey(details.itemsKey(), new_node.getKey(details.itemsKey()));
this->oh.replaceKey("/Kids", new_node.getKey("/Kids"));
this->oh.replaceKey(
details.itemsKey(), new_node.getKey(details.itemsKey()));
}
NNTreeImpl::iterator

3
libqpdf/QPDFAcroFormDocumentHelper.cc
View File

@ -733,7 +733,8 @@ QPDFAcroFormDocumentHelper::adjustAppearanceStream(
auto existing_old = subdict.getKey(old_key);
if (!existing_old.isNull()) {
QTC::TC("qpdf", "QPDFAcroFormDocumentHelper ap rename");
subdict.replaceKey(new_key, existing_old).removeKey(old_key);
subdict.replaceKey(new_key, existing_old);
subdict.removeKey(old_key);
}
}
}

4
libqpdf/QPDFFileSpecObjectHelper.cc
View File

@ -103,8 +103,8 @@ QPDFFileSpecObjectHelper::createFileSpec(
QPDFFileSpecObjectHelper result(oh);
result.setFilename(filename);
auto ef = QPDFObjectHandle::newDictionary();
ef.replaceKey("/F", efsoh.getObjectHandle())
.replaceKey("/UF", efsoh.getObjectHandle());
ef.replaceKey("/F", efsoh.getObjectHandle());
ef.replaceKey("/UF", efsoh.getObjectHandle());
oh.replaceKey("/EF", ef);
return result;
}

15
libqpdf/QPDFObjectHandle.cc
View File

@ -959,7 +959,7 @@ QPDFObjectHandle::setArrayFromVector(std::vector<QPDFObjectHandle> const& items)
}
}
QPDFObjectHandle&
void
QPDFObjectHandle::insertItem(int at, QPDFObjectHandle const& item)
{
if (isArray()) {
@ -968,7 +968,6 @@ QPDFObjectHandle::insertItem(int at, QPDFObjectHandle const& item)
typeWarning("array", "ignoring attempt to insert item");
QTC::TC("qpdf", "QPDFObjectHandle array ignoring insert item");
}
return *this;
}
QPDFObjectHandle
@ -978,7 +977,7 @@ QPDFObjectHandle::insertItemAndGet(int at, QPDFObjectHandle const& item)
return item;
}
QPDFObjectHandle&
void
QPDFObjectHandle::appendItem(QPDFObjectHandle const& item)
{
if (isArray()) {
@ -988,7 +987,6 @@ QPDFObjectHandle::appendItem(QPDFObjectHandle const& item)
typeWarning("array", "ignoring attempt to append item");
QTC::TC("qpdf", "QPDFObjectHandle array ignoring append item");
}
return *this;
}
QPDFObjectHandle
@ -998,7 +996,7 @@ QPDFObjectHandle::appendItemAndGet(QPDFObjectHandle const& item)
return item;
}
QPDFObjectHandle&
void
QPDFObjectHandle::eraseItem(int at)
{
if (isArray() && (at < getArrayNItems()) && (at >= 0)) {
@ -1012,7 +1010,6 @@ QPDFObjectHandle::eraseItem(int at)
QTC::TC("qpdf", "QPDFObjectHandle array ignoring erase item");
}
}
return *this;
}
QPDFObjectHandle
@ -1289,7 +1286,7 @@ QPDFObjectHandle::getOwningQPDF()
// Dictionary mutators
QPDFObjectHandle&
void
QPDFObjectHandle::replaceKey(
std::string const& key, QPDFObjectHandle const& value)
{
@ -1300,7 +1297,6 @@ QPDFObjectHandle::replaceKey(
typeWarning("dictionary", "ignoring key replacement request");
QTC::TC("qpdf", "QPDFObjectHandle dictionary ignoring replaceKey");
}
return *this;
}
QPDFObjectHandle
@ -1311,7 +1307,7 @@ QPDFObjectHandle::replaceKeyAndGet(
return value;
}
QPDFObjectHandle&
void
QPDFObjectHandle::removeKey(std::string const& key)
{
if (isDictionary()) {
@ -1320,7 +1316,6 @@ QPDFObjectHandle::removeKey(std::string const& key)
typeWarning("dictionary", "ignoring key removal request");
QTC::TC("qpdf", "QPDFObjectHandle dictionary ignoring removeKey");
}
return *this;
}
QPDFObjectHandle

5
libqpdf/QPDFPageLabelDocumentHelper.cc
View File

@ -44,8 +44,9 @@ QPDFPageLabelDocumentHelper::getLabelForPage(long long page_idx)
QIntC::range_check(start, offset);
start += offset;
result = QPDFObjectHandle::newDictionary();
result.replaceKey("/S", S).replaceKey("/P", P).replaceKey(
"/St", QPDFObjectHandle::newInteger(start));
result.replaceKey("/S", S);
result.replaceKey("/P", P);
result.replaceKey("/St", QPDFObjectHandle::newInteger(start));
return result;
}

14
libqpdf/QPDFPageObjectHelper.cc
View File

@ -78,8 +78,8 @@ QPDFObjectHandle
InlineImageTracker::convertIIDict(QPDFObjectHandle odict)
{
QPDFObjectHandle dict = QPDFObjectHandle::newDictionary();
dict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"))
.replaceKey("/Subtype", QPDFObjectHandle::newName("/Image"));
dict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"));
dict.replaceKey("/Subtype", QPDFObjectHandle::newName("/Image"));
std::set<std::string> keys = odict.getKeys();
for (auto key: keys) {
QPDFObjectHandle value = odict.getKey(key);
@ -752,11 +752,11 @@ QPDFPageObjectHelper::getFormXObjectForPage(bool handle_transformations)
}
QPDFObjectHandle result = QPDFObjectHandle::newStream(qpdf);
QPDFObjectHandle newdict = result.getDict();
newdict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"))
.replaceKey("/Subtype", QPDFObjectHandle::newName("/Form"))
.replaceKey(
"/Resources", getAttribute("/Resources", false).shallowCopy())
.replaceKey("/Group", getAttribute("/Group", false).shallowCopy());
newdict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"));
newdict.replaceKey("/Subtype", QPDFObjectHandle::newName("/Form"));
newdict.replaceKey(
"/Resources", getAttribute("/Resources", false).shallowCopy());
newdict.replaceKey("/Group", getAttribute("/Group", false).shallowCopy());
QPDFObjectHandle bbox = getTrimBox(false).shallowCopy();
if (!bbox.isRectangle()) {
this->oh.warnIfPossible("bounding box is invalid; form"

4
libqpdf/QPDF_Stream.cc
View File

@ -725,8 +725,8 @@ QPDF_Stream::replaceFilterData(
QPDFObjectHandle const& decode_parms,
size_t length)
{
this->stream_dict.replaceKey("/Filter", filter)
.replaceKey("/DecodeParms", decode_parms);
this->stream_dict.replaceKey("/Filter", filter);
this->stream_dict.replaceKey("/DecodeParms", decode_parms);
if (length == 0) {
QTC::TC("qpdf", "QPDF_Stream unknown stream length");
this->stream_dict.removeKey("/Length");

33
libtests/nntree.cc
View File

@ -62,15 +62,16 @@ test_bsearch()
auto mk = [&q](std::vector<int> const& v) {
auto nums = QPDFObjectHandle::newArray();
for (auto i: v) {
nums.appendItem(QPDFObjectHandle::newInteger(i))
.appendItem(QPDFObjectHandle::newString(
nums.appendItem(QPDFObjectHandle::newInteger(i));
nums.appendItem(QPDFObjectHandle::newString(
"-" + QUtil::int_to_string(i) + "-"));
}
auto limits = QPDFObjectHandle::newArray();
limits.appendItem(QPDFObjectHandle::newInteger(v.at(0)))
.appendItem(QPDFObjectHandle::newInteger(v.at(v.size() - 1)));
limits.appendItem(QPDFObjectHandle::newInteger(v.at(0)));
limits.appendItem(QPDFObjectHandle::newInteger(v.at(v.size() - 1)));
auto node = q.makeIndirectObject(QPDFObjectHandle::newDictionary());
node.replaceKey("/Nums", nums).replaceKey("/Limits", limits);
node.replaceKey("/Nums", nums);
node.replaceKey("/Limits", limits);
return node;
};
@ -168,8 +169,8 @@ test_depth()
int val =
(((((i1 * NITEMS) + i2) * NITEMS) + i3) * NITEMS) + i4;
std::string str = QUtil::int_to_string(10 * val, 6);
items.appendItem(QPDFObjectHandle::newString(str))
.appendItem(QPDFObjectHandle::newString("val " + str));
items.appendItem(QPDFObjectHandle::newString(str));
items.appendItem(QPDFObjectHandle::newString("val " + str));
if (i4 == 0) {
first = str;
} else if (i4 == NITEMS - 1) {
@ -178,22 +179,20 @@ test_depth()
}
auto limits = QPDFObjectHandle::newArray();
n3.replaceKey("/Limits", limits);
limits.appendItem(QPDFObjectHandle::newString(first))
.appendItem(QPDFObjectHandle::newString(last));
limits.appendItem(QPDFObjectHandle::newString(first));
limits.appendItem(QPDFObjectHandle::newString(last));
}
auto limits = QPDFObjectHandle::newArray();
n2.replaceKey("/Limits", limits);
limits
.appendItem(
k2.getArrayItem(0).getKey("/Limits").getArrayItem(0))
.appendItem(k2.getArrayItem(NITEMS - 1)
.getKey("/Limits")
.getArrayItem(1));
limits.appendItem(
k2.getArrayItem(0).getKey("/Limits").getArrayItem(0));
limits.appendItem(
k2.getArrayItem(NITEMS - 1).getKey("/Limits").getArrayItem(1));
}
auto limits = QPDFObjectHandle::newArray();
n1.replaceKey("/Limits", limits);
limits.appendItem(k1.getArrayItem(0).getKey("/Limits").getArrayItem(0))
.appendItem(
limits.appendItem(k1.getArrayItem(0).getKey("/Limits").getArrayItem(0));
limits.appendItem(
k1.getArrayItem(NITEMS - 1).getKey("/Limits").getArrayItem(1));
}

9
manual/release-notes.rst
View File

@ -98,12 +98,9 @@ For a detailed list of changes, please see the file
- Library Enhancements
- Support for more fluent programming with ``QPDFObjectHandle``.
The methods ``insertItem``, ``appendItem``, ``eraseItem``,
``replaceKey``, and ``removeKey`` all return a reference to the
object being modified. New methods ``insertItemAndGet``,
``appendItemAndGet``, ``eraseItemAndGet``, ``replaceKeyAndGet``,
and ``removeKeyAndGet`` return the newly added or removed object.
- New methods ``insertItemAndGet``, ``appendItemAndGet``,
``eraseItemAndGet``, ``replaceKeyAndGet``, and
``removeKeyAndGet`` return the newly added or removed object.
- Add new ``Pipeline`` methods to reduce the amount of casting that is
needed:

11
qpdf/pdf_from_scratch.cc
View File

@ -60,14 +60,15 @@ runtest(int n)
rfont.replaceKey("/F1", font);
QPDFObjectHandle resources = QPDFObjectHandle::newDictionary();
resources.replaceKey("/ProcSet", procset).replaceKey("/Font", rfont);
resources.replaceKey("/ProcSet", procset);
resources.replaceKey("/Font", rfont);
QPDFObjectHandle page =
pdf.makeIndirectObject(QPDFObjectHandle::newDictionary());
page.replaceKey("/Type", newName("/Page"))
.replaceKey("/MediaBox", mediabox)
.replaceKey("/Contents", contents)
.replaceKey("/Resources", resources);
page.replaceKey("/Type", newName("/Page"));
page.replaceKey("/MediaBox", mediabox);
page.replaceKey("/Contents", contents);
page.replaceKey("/Resources", resources);
QPDFPageDocumentHelper(pdf).addPage(page, true);

80
qpdf/test_driver.cc
View File

@ -525,7 +525,8 @@ test_9(QPDF& pdf, char const* arg2)
"data for other stream\n",
QPDFObjectHandle::newNull(),
QPDFObjectHandle::newNull());
root.replaceKey("/QStream", qstream).replaceKey("/RStream", rstream);
root.replaceKey("/QStream", qstream);
root.replaceKey("/RStream", rstream);
QPDFWriter w(pdf, "a.pdf");
w.setStaticID(true);
w.setStreamDataMode(qpdf_s_preserve);
@ -895,12 +896,15 @@ test_24(QPDF& pdf, char const* arg2)
QPDFObjectHandle res1 = QPDFObjectHandle::newReserved(&pdf);
QPDFObjectHandle res2 = QPDFObjectHandle::newReserved(&pdf);
QPDFObjectHandle trailer = pdf.getTrailer();
trailer.replaceKey("Array1", res1).replaceKey("Array2", res2);
trailer.replaceKey("Array1", res1);
trailer.replaceKey("Array2", res2);
QPDFObjectHandle array1 = QPDFObjectHandle::newArray();
QPDFObjectHandle array2 = QPDFObjectHandle::newArray();
array1.appendItem(res2).appendItem(QPDFObjectHandle::newInteger(1));
array2.appendItem(res1).appendItem(QPDFObjectHandle::newInteger(2));
array1.appendItem(res2);
array1.appendItem(QPDFObjectHandle::newInteger(1));
array2.appendItem(res1);
array2.appendItem(QPDFObjectHandle::newInteger(2));
// Make sure trying to ask questions about a reserved object
// doesn't break it.
if (res1.isArray()) {
@ -1065,14 +1069,13 @@ test_27(QPDF& pdf, char const* arg2)
dh.addPage(O3.getKey("/OtherPage"), false);
dh.addPage(O3, false);
QPDFObjectHandle s2 = QPDFObjectHandle::newStream(&oldpdf, "potato\n");
pdf.getTrailer()
.replaceKey("/QTest", pdf.copyForeignObject(qtest))
.replaceKey("/QTest2", QPDFObjectHandle::newArray());
pdf.getTrailer()
.getKey("/QTest2")
.appendItem(pdf.copyForeignObject(s1))
.appendItem(pdf.copyForeignObject(s2))
.appendItem(pdf.copyForeignObject(s3));
auto trailer = pdf.getTrailer();
trailer.replaceKey("/QTest", pdf.copyForeignObject(qtest));
auto qtest2 =
trailer.replaceKeyAndGet("/QTest2", QPDFObjectHandle::newArray());
qtest2.appendItem(pdf.copyForeignObject(s1));
qtest2.appendItem(pdf.copyForeignObject(s2));
qtest2.appendItem(pdf.copyForeignObject(s3));
}
QPDFWriter w(pdf, "a.pdf");
@ -2035,12 +2038,6 @@ test_55(QPDF& pdf, char const* arg2)
QPDFPageDocumentHelper(pdf).getAllPages();
QPDFObjectHandle qtest = QPDFObjectHandle::newArray();
for (auto& ph: pages) {
// Note: using fluent appendItem causes a test failure with
// MSVC 19.31.31107, which appears to evaluate the argument to
// the second appendItem before the first. Since these
// arguments have the side effect of creating objects, the
// object numbers end up being different even though the
// resulting file is semantically correct.
qtest.appendItem(ph.getFormXObjectForPage());
qtest.appendItem(ph.getFormXObjectForPage(false));
}
@ -2196,10 +2193,10 @@ test_60(QPDF& pdf, char const* arg2)
// The only differences between /QTest and /QTest3 should be
// the direct objects merged from r2.
pdf.getTrailer()
.replaceKey("/QTest1", r1)
.replaceKey("/QTest2", r2)
.replaceKey("/QTest3", r3);
auto trailer = pdf.getTrailer();
trailer.replaceKey("/QTest1", r1);
trailer.replaceKey("/QTest2", r2);
trailer.replaceKey("/QTest3", r3);
QPDFWriter w(pdf, "a.pdf");
w.setQDFMode(true);
w.setStaticID(true);
@ -2259,9 +2256,9 @@ test_62(QPDF& pdf, char const* arg2)
long long q2 = QIntC::to_longlong(q2_l);
unsigned int q3_i = UINT_MAX;
long long q3 = QIntC::to_longlong(q3_i);
t.replaceKey("/Q1", QPDFObjectHandle::newInteger(q1))
.replaceKey("/Q2", QPDFObjectHandle::newInteger(q2))
.replaceKey("/Q3", QPDFObjectHandle::newInteger(q3));
t.replaceKey("/Q1", QPDFObjectHandle::newInteger(q1));
t.replaceKey("/Q2", QPDFObjectHandle::newInteger(q2));
t.replaceKey("/Q3", QPDFObjectHandle::newInteger(q3));
assert_compare_numbers(q1, t.getKey("/Q1").getIntValue());
assert_compare_numbers(q1_l, t.getKey("/Q1").getUIntValue());
assert_compare_numbers(INT_MAX, t.getKey("/Q1").getIntValueAsInt());
@ -3120,17 +3117,16 @@ test_87(QPDF& pdf, char const* arg2)
static void
test_88(QPDF& pdf, char const* arg2)
{
// Exercise fluent QPDFObjectHandle mutators and similar methods
// added for qpdf 11.
auto dict = QPDFObjectHandle::newDictionary()
.replaceKey("/One", QPDFObjectHandle::newInteger(1))
.replaceKey("/Two", QPDFObjectHandle::newInteger(2));
dict.replaceKeyAndGet("/Three", QPDFObjectHandle::newArray())
.appendItem("(a)"_qpdf)
.appendItem("(b)"_qpdf)
.appendItemAndGet(QPDFObjectHandle::newDictionary())
.replaceKey("/Z", "/Y"_qpdf)
.replaceKey("/X", "/W"_qpdf);
// Exercise mutate and get methods added for qpdf 11.
auto dict = QPDFObjectHandle::newDictionary();
dict.replaceKey("/One", QPDFObjectHandle::newInteger(1));
dict.replaceKey("/Two", QPDFObjectHandle::newInteger(2));
auto three = dict.replaceKeyAndGet("/Three", QPDFObjectHandle::newArray());
three.appendItem("(a)"_qpdf);
three.appendItem("(b)"_qpdf);
auto newdict = three.appendItemAndGet(QPDFObjectHandle::newDictionary());
newdict.replaceKey("/Z", "/Y"_qpdf);
newdict.replaceKey("/X", "/W"_qpdf);
assert(dict.unparse() == R"(
<<
/One 1
@ -3138,14 +3134,15 @@ test_88(QPDF& pdf, char const* arg2)
/Three [ (a) (b) << /Z /Y /X /W >> ]
>>
)"_qpdf.unparse());
auto arr = dict.getKey("/Three")
.insertItem(0, QPDFObjectHandle::newString("0"))
.insertItem(0, QPDFObjectHandle::newString("00"));
auto arr = dict.getKey("/Three");
arr.insertItem(0, QPDFObjectHandle::newString("0"));
arr.insertItem(0, QPDFObjectHandle::newString("00"));
assert(
arr.unparse() ==
"[ (00) (0) (a) (b) << /Z /Y /X /W >> ]"_qpdf.unparse());
auto new_dict = arr.insertItemAndGet(1, "<< /P /Q /R /S >>"_qpdf);
arr.eraseItem(2).eraseItem(0);
arr.eraseItem(2);
arr.eraseItem(0);
assert(
arr.unparse() ==
"[ << /P /Q /R /S >> (a) (b) << /Z /Y /X /W >> ]"_qpdf.unparse());
@ -3154,7 +3151,8 @@ test_88(QPDF& pdf, char const* arg2)
// always been this way, and there is code that relies on this
// behavior. Maybe it would be different if I could start over
// again...
new_dict.removeKey("/R").replaceKey("/T", "/U"_qpdf);
new_dict.removeKey("/R");
new_dict.replaceKey("/T", "/U"_qpdf);
assert(
arr.unparse() ==
"[ << /P /Q /T /U >> (a) (b) << /Z /Y /X /W >> ]"_qpdf.unparse());

50
qpdf/test_large_file.cc
View File

@ -187,37 +187,37 @@ create_pdf(char const* filename)
QPDFObjectHandle font =
pdf.makeIndirectObject(QPDFObjectHandle::newDictionary());
font.replaceKey("/Type", newName("/Font"))
.replaceKey("/Subtype", newName("/Type1"))
.replaceKey("/Name", newName("/F1"))
.replaceKey("/BaseFont", newName("/Helvetica"))
.replaceKey("/Encoding", newName("/WinAnsiEncoding"));
font.replaceKey("/Type", newName("/Font"));
font.replaceKey("/Subtype", newName("/Type1"));
font.replaceKey("/Name", newName("/F1"));
font.replaceKey("/BaseFont", newName("/Helvetica"));
font.replaceKey("/Encoding", newName("/WinAnsiEncoding"));
QPDFObjectHandle procset =
pdf.makeIndirectObject(QPDFObjectHandle::newArray());
procset.appendItem(newName("/PDF"))
.appendItem(newName("/Text"))
.appendItem(newName("/ImageC"));
procset.appendItem(newName("/PDF"));
procset.appendItem(newName("/Text"));
procset.appendItem(newName("/ImageC"));
QPDFObjectHandle rfont = QPDFObjectHandle::newDictionary();
rfont.replaceKey("/F1", font);
QPDFObjectHandle mediabox = QPDFObjectHandle::newArray();
mediabox.appendItem(newInteger(0))
.appendItem(newInteger(0))
.appendItem(newInteger(612))
.appendItem(newInteger(792));
mediabox.appendItem(newInteger(0));
mediabox.appendItem(newInteger(0));
mediabox.appendItem(newInteger(612));
mediabox.appendItem(newInteger(792));
QPDFPageDocumentHelper dh(pdf);
for (size_t pageno = 1; pageno <= npages; ++pageno) {
QPDFObjectHandle image = QPDFObjectHandle::newStream(&pdf);
QPDFObjectHandle image_dict = image.getDict();
image_dict.replaceKey("/Type", newName("/XObject"))
.replaceKey("/Subtype", newName("/Image"))
.replaceKey("/ColorSpace", newName("/DeviceGray"))
.replaceKey("/BitsPerComponent", newInteger(8))
.replaceKey("/Width", newInteger(width))
.replaceKey("/Height", newInteger(height));
image_dict.replaceKey("/Type", newName("/XObject"));
image_dict.replaceKey("/Subtype", newName("/Image"));
image_dict.replaceKey("/ColorSpace", newName("/DeviceGray"));
image_dict.replaceKey("/BitsPerComponent", newInteger(8));
image_dict.replaceKey("/Width", newInteger(width));
image_dict.replaceKey("/Height", newInteger(height));
ImageProvider* p = new ImageProvider(pageno);
std::shared_ptr<QPDFObjectHandle::StreamDataProvider> provider(p);
image.replaceStreamData(
@ -227,18 +227,18 @@ create_pdf(char const* filename)
xobject.replaceKey("/Im1", image);
QPDFObjectHandle resources = QPDFObjectHandle::newDictionary();
resources.replaceKey("/ProcSet", procset)
.replaceKey("/Font", rfont)
.replaceKey("/XObject", xobject);
resources.replaceKey("/ProcSet", procset);
resources.replaceKey("/Font", rfont);
resources.replaceKey("/XObject", xobject);
QPDFObjectHandle contents = create_page_contents(pdf, pageno);
QPDFObjectHandle page =
pdf.makeIndirectObject(QPDFObjectHandle::newDictionary());
page.replaceKey("/Type", newName("/Page"))
.replaceKey("/MediaBox", mediabox)
.replaceKey("/Contents", contents)
.replaceKey("/Resources", resources);
page.replaceKey("/Type", newName("/Page"));
page.replaceKey("/MediaBox", mediabox);
page.replaceKey("/Contents", contents);
page.replaceKey("/Resources", resources);
dh.addPage(page, false);
}