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mirror of https://github.com/qpdf/qpdf.git synced 2024-12-22 02:49:00 +00:00

Allow --rotate=0

This commit is contained in:
Jay Berkenbilt 2021-02-20 16:28:58 -05:00
parent 71e8627285
commit 35dd11f356
6 changed files with 952 additions and 6 deletions

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@ -1,3 +1,7 @@
2021-02-20 Jay Berkenbilt <ejb@ql.org>
* Allow --rotate=0 to clear rotation from a page.
2021-02-18 Jay Berkenbilt <ejb@ql.org>
* Add QPDFAcroFormDocumentHelper::addFormField, which adds a new

View File

@ -1579,6 +1579,8 @@ QPDFObjectHandle::rotatePage(int angle, bool relative)
new_angle += old_angle;
}
new_angle = (new_angle + 360) % 360;
// Make this explicit even with new_angle == 0 since /Rotate can
// be inherited.
replaceKey("/Rotate", QPDFObjectHandle::newInteger(new_angle));
}

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@ -1008,7 +1008,7 @@ make
linkend="ref.page-selection"/>. If the page range is omitted,
the rotation is applied to all pages. The
<option>angle</option> portion of the parameter may be either
90, 180, or 270. If preceded by <option>+</option> or
0, 90, 180, or 270. If preceded by <option>+</option> or
<option>-</option>, the angle is added to or subtracted from
the specified pages' original rotations. This is almost always
what you want. Otherwise the pages' rotations are set to the
@ -5175,6 +5175,12 @@ print "\n";
from the given files.
</para>
</listitem>
<listitem>
<para>
It is now valid to provide <option>--rotate=0</option> to
clear rotation from a page.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>

View File

@ -1374,8 +1374,8 @@ ArgParser::argHelp()
<< " concatenated\n"
<< "--flatten-rotation move page rotation from /Rotate key to content\n"
<< "--rotate=[+|-]angle[:page-range]\n"
<< " rotate each specified page 90, 180, or 270 degrees;\n"
<< " rotate all pages if no page range is given\n"
<< " rotate each specified page 0, 90, 180, or 270\n"
<< " degrees; rotate all pages if no page range is given\n"
<< "--split-pages=[n] write each output page to a separate file\n"
<< "--overlay options -- overlay pages from another file\n"
<< "--underlay options -- underlay pages from another file\n"
@ -1399,7 +1399,7 @@ ArgParser::argHelp()
<< "or investigatory purposes. See manual for further discussion.\n"
<< "\n"
<< "The --rotate flag can be used to specify pages to rotate pages either\n"
<< "90, 180, or 270 degrees. The page range is specified in the same\n"
<< "0, 90, 180, or 270 degrees. The page range is specified in the same\n"
<< "format as with the --pages option, described below. Repeat the option\n"
<< "to rotate multiple groups of pages. If the angle is preceded by + or -,\n"
<< "it is added to or subtracted from the original rotation. Otherwise, the\n"
@ -3448,7 +3448,8 @@ ArgParser::parseRotationParameter(std::string const& parameter)
// ignore
}
if (range_valid &&
((angle_str == "90") || (angle_str == "180") || (angle_str == "270")))
((angle_str == "0") ||(angle_str == "90") ||
(angle_str == "180") || (angle_str == "270")))
{
int angle = QUtil::string_to_int(angle_str.c_str());
if (relative == -1)

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@ -2241,7 +2241,7 @@ $td->runtest("explicit keep files open = n",
show_ntests();
# ----------
$td->notify("--- Rotate Pages ---");
$n_tests += 4;
$n_tests += 6;
# Do absolute, positive, and negative on ranges that include
# inherited and non-inherited.
# Pages 11-15 inherit /Rotate 90
@ -2258,6 +2258,14 @@ $td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "rotated.pdf"});
$td->runtest("remove rotation",
{$td->COMMAND => "qpdf --static-id rotated.pdf a.pdf" .
" --qdf --no-original-object-ids --rotate=0"},
{$td->STRING => "", $td->EXIT_STATUS => 0});
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "unrotated.pdf"});
$td->runtest("rotate all pages",
{$td->COMMAND =>
"qpdf --static-id --rotate=180 minimal.pdf a.pdf"},

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