mirror of
https://git.lyx.org/repos/lyx.git
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433 lines
9.1 KiB
C++
433 lines
9.1 KiB
C++
/**
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* \file ExternalTransforms.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "ExternalTransforms.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/lstrings.h"
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#include "support/lyxlib.h" // float_equal
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#include "support/Translator.h"
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#include "support/regex.h"
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#include <cmath> // abs
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#include <sstream>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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namespace external {
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string const ExtraData::get(string const & id) const
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{
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map<string, string>::const_iterator it = data_.find(id);
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return it == data_.end() ? string() : it->second;
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}
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void ExtraData::set(string const & id, string const & data)
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{
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data_[id] = data;
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}
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bool ResizeData::no_resize() const
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{
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return !usingScale() && width.zero() && height.zero();
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}
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bool ResizeData::usingScale() const
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{
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return (!scale.empty() && !float_equal(convert<double>(scale), 0.0, 0.05));
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}
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bool RotationData::no_rotation() const
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{
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return (angle.empty() || abs(convert<double>(angle)) < 0.1);
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}
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string const RotationData::adjAngle() const
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{
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// Ensure that angle lies in the range -360 < angle < 360
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double rotAngle = convert<double>(angle);
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if (abs(rotAngle) > 360.0) {
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rotAngle -= 360.0 * floor(rotAngle / 360.0);
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return convert<string>(rotAngle);
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}
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return angle;
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}
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namespace {
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typedef Translator<RotationData::OriginType, string> OriginTranslator;
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OriginTranslator const & originTranslator();
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} // namespace anon
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void RotationData::origin(string const & o)
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{
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origin_ = originTranslator().find(o);
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}
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string const RotationData::originString() const
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{
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return originTranslator().find(origin_);
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}
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string const ResizeLatexCommand::front_impl() const
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{
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if (data.no_resize())
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return string();
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ostringstream os;
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if (data.usingScale()) {
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double const scl = convert<double>(data.scale) / 100.0;
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os << "\\scalebox{" << scl << "}[" << scl << "]{";
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} else {
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string width = "!";
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string height = "!";
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if (data.keepAspectRatio) {
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if (data.width.inPixels(10) > data.height.inPixels(10))
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width = data.width.asLatexString();
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else
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height = data.height.asLatexString();
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} else {
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if (!data.width.zero())
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width = data.width.asLatexString();
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if (!data.height.zero())
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height = data.height.asLatexString();
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}
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os << "\\resizebox{"
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<< width << "}{"
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<< height << "}{";
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}
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return os.str();
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}
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string const ResizeLatexCommand::back_impl() const
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{
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if (data.no_resize())
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return string();
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return "}";
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}
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namespace {
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ostream & operator<<(ostream & os, RotationData::OriginType type)
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{
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switch (type) {
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case RotationData::DEFAULT:
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case RotationData::CENTER:
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break;
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case RotationData::TOPLEFT:
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case RotationData::TOPCENTER:
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case RotationData::TOPRIGHT:
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os << 't';
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break;
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case RotationData::BOTTOMLEFT:
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case RotationData::BOTTOMCENTER:
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case RotationData::BOTTOMRIGHT:
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os << 'b';
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break;
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case RotationData::BASELINELEFT:
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case RotationData::BASELINECENTER:
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case RotationData::BASELINERIGHT:
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os << 'B';
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break;
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}
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switch (type) {
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case RotationData::DEFAULT:
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break;
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case RotationData::TOPLEFT:
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case RotationData::BOTTOMLEFT:
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case RotationData::BASELINELEFT:
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os << 'l';
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break;
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case RotationData::CENTER:
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case RotationData::TOPCENTER:
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case RotationData::BOTTOMCENTER:
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case RotationData::BASELINECENTER:
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os << 'c';
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break;
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case RotationData::TOPRIGHT:
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case RotationData::BOTTOMRIGHT:
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case RotationData::BASELINERIGHT:
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os << 'r';
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break;
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}
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return os;
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}
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} // namespace anon
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string const RotationLatexCommand::front_impl() const
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{
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if (data.no_rotation())
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return string();
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ostringstream os;
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os << "\\rotatebox";
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if (data.origin() != RotationData::DEFAULT)
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os << "[origin=" << data.origin() << ']';
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os << '{' << data.angle << "}{";
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return os.str();
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}
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string const RotationLatexCommand::back_impl() const
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{
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if (data.no_rotation())
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return string();
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return "}";
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}
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string const ClipLatexOption::option_impl() const
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{
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if (!data.clip || data.bbox.empty())
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return string();
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ostringstream os;
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if (!data.bbox.empty())
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os << "bb=" << data.bbox << ',';
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if (data.clip)
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os << "clip,";
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return os.str();
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}
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string const ResizeLatexOption::option_impl() const
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{
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if (data.no_resize())
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return string();
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ostringstream os;
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if (data.usingScale()) {
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double const scl = convert<double>(data.scale);
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if (!float_equal(scl, 100.0, 0.05))
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os << "scale=" << scl / 100.0 << ',';
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return os.str();
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}
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if (!data.width.zero())
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os << "width=" << data.width.asLatexString() << ',';
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if (!data.height.zero())
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os << "height=" << data.height.asLatexString() << ',';
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if (data.keepAspectRatio)
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os << "keepaspectratio,";
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return os.str();
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}
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string const RotationLatexOption ::option_impl() const
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{
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if (data.no_rotation())
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return string();
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ostringstream os;
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os << "angle=" << data.angle << ',';
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if (data.origin() != RotationData::DEFAULT)
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os << "origin=" << data.origin() << ',';
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return os.str();
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}
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string const sanitizeDocBookOption(string const & input)
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{
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return input;
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}
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string const sanitizeLatexOption(string const & input)
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{
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string::const_iterator begin = input.begin();
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string::const_iterator end = input.end();
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string::const_iterator it = begin;
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// Strip any leading commas
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// "[,,,,foo..." -> "foo..." ("foo..." may be empty)
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string output;
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lyx::smatch what;
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static lyx::regex const front("^( *[[],*)(.*)$");
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regex_match(it, end, what, front);
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if (!what[0].matched) {
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lyxerr << "Unable to sanitize LaTeX \"Option\": "
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<< input << '\n';
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return string();
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}
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it = what[1].second;
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// Replace any consecutive commas with a single one
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// "foo,,,,bar" -> "foo,bar"
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// with iterator now pointing to 'b'
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static lyx::regex const commas("([^,]*)(,,*)(.*)$");
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for (; it != end;) {
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regex_match(it, end, what, commas);
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if (!what[0].matched) {
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output += string(it, end);
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break;
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}
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output += what.str(1) + ",";
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it = what[3].first;
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}
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// Strip any trailing commas
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// "...foo,,,]" -> "...foo" ("...foo,,," may be empty)
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static lyx::regex const back("^(.*[^,])?,*[]] *$");
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regex_match(output, what, back);
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if (!what[0].matched) {
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lyxerr << "Unable to sanitize LaTeX \"Option\": "
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<< output << '\n';
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return string();
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}
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output = what.str(1);
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// Remove any surrounding whitespace
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output = trim(output);
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// If the thing is empty, leave it so, else wrap it in square brackets.
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return output.empty() ? output : "[" + output + "]";
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}
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namespace {
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template <typename Factory, typename Data, typename Transformer>
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void extractIt(boost::any const & any_factory,
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Data const & data, Transformer & transformer)
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{
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if (any_factory.type() != typeid(Factory))
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return;
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Factory factory = boost::any_cast<Factory>(any_factory);
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if (!factory.empty())
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transformer = factory(data);
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}
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} // namespace anon
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TransformCommand::ptr_type
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TransformStore::getCommandTransformer(RotationData const & data) const
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{
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TransformCommand::ptr_type ptr;
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if (id == Rotate)
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extractIt<RotationCommandFactory>(any_factory, data, ptr);
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return ptr;
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}
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TransformCommand::ptr_type
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TransformStore::getCommandTransformer(ResizeData const & data) const
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{
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TransformCommand::ptr_type ptr;
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if (id == Resize)
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extractIt<ResizeCommandFactory>(any_factory, data, ptr);
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return ptr;
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}
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TransformOption::ptr_type
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TransformStore::getOptionTransformer(RotationData const & data) const
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{
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TransformOption::ptr_type ptr;
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if (id == Rotate)
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extractIt<RotationOptionFactory>(any_factory, data, ptr);
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return ptr;
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}
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TransformOption::ptr_type
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TransformStore::getOptionTransformer(ResizeData const & data) const
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{
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TransformOption::ptr_type ptr;
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if (id == Resize)
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extractIt<ResizeOptionFactory>(any_factory, data, ptr);
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return ptr;
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}
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TransformOption::ptr_type
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TransformStore::getOptionTransformer(ClipData const & data) const
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{
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TransformOption::ptr_type ptr;
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if (id == Clip)
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extractIt<ClipOptionFactory>(any_factory, data, ptr);
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return ptr;
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}
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TransformOption::ptr_type
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TransformStore::getOptionTransformer(string const & data) const
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{
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TransformOption::ptr_type ptr;
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if (id == Extra)
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extractIt<ExtraOptionFactory>(any_factory, data, ptr);
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return ptr;
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}
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namespace {
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OriginTranslator const initOriginTranslator()
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{
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OriginTranslator translator(RotationData::DEFAULT, "default");
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translator.addPair(RotationData::TOPLEFT, "topleft");
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translator.addPair(RotationData::BOTTOMLEFT, "bottomleft");
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translator.addPair(RotationData::BASELINELEFT, "baselineleft");
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translator.addPair(RotationData::CENTER, "center");
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translator.addPair(RotationData::TOPCENTER, "topcenter");
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translator.addPair(RotationData::BOTTOMCENTER, "bottomcenter");
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translator.addPair(RotationData::BASELINECENTER, "baselinecenter");
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translator.addPair(RotationData::TOPRIGHT, "topright");
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translator.addPair(RotationData::BOTTOMRIGHT, "bottomright");
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translator.addPair(RotationData::BASELINERIGHT, "baselineright");
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return translator;
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}
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OriginTranslator const & originTranslator()
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{
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static OriginTranslator const translator = initOriginTranslator();
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return translator;
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}
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} // namespace anon
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} // namespace external
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} // namespace lyx
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