mirror of
https://github.com/JakubMelka/PDF4QT.git
synced 2024-12-28 17:20:02 +01:00
564 lines
19 KiB
C++
564 lines
19 KiB
C++
// Copyright (C) 2021 Jakub Melka
|
|
//
|
|
// This file is part of PDF4QT.
|
|
//
|
|
// PDF4QT is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// with the written consent of the copyright owner, any later version.
|
|
//
|
|
// PDF4QT is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
#include "utils.h"
|
|
#include "pdfutils.h"
|
|
#include "pdfwidgetutils.h"
|
|
#include "pdfpainterutils.h"
|
|
#include "pdfdocumentbuilder.h"
|
|
|
|
#include <QPainter>
|
|
|
|
namespace pdfdocdiff
|
|
{
|
|
|
|
void ComparedDocumentMapper::update(ComparedDocumentMapper::Mode mode,
|
|
bool filterDifferences,
|
|
const pdf::PDFDiffResult& diff,
|
|
const pdf::PDFDocument* leftDocument,
|
|
const pdf::PDFDocument* rightDocument,
|
|
const pdf::PDFDocument* currentDocument)
|
|
{
|
|
m_layout.clear();
|
|
|
|
m_leftPageIndices.clear();
|
|
m_rightPageIndices.clear();
|
|
|
|
m_allLeft = false;
|
|
m_allRight = false;
|
|
|
|
if (!leftDocument || !rightDocument || !currentDocument)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Jakub Melka
|
|
pdf::PDFDiffResult::PageSequence pageSequence = diff.getPageSequence();
|
|
const bool isEmpty = pageSequence.empty();
|
|
|
|
if (filterDifferences)
|
|
{
|
|
pdf::PDFDiffResult::PageSequence filteredPageSequence;
|
|
|
|
std::vector<pdf::PDFInteger> leftPageIndices = diff.getChangedLeftPageIndices();
|
|
std::vector<pdf::PDFInteger> rightPageIndices = diff.getChangedRightPageIndices();
|
|
|
|
for (const pdf::PDFDiffResult::PageSequenceItem& item : pageSequence)
|
|
{
|
|
const bool isLeftModified = std::binary_search(leftPageIndices.cbegin(), leftPageIndices.cend(), item.leftPage);
|
|
const bool isRightModified = std::binary_search(rightPageIndices.cbegin(), rightPageIndices.cend(), item.rightPage);
|
|
|
|
if (isLeftModified || isRightModified)
|
|
{
|
|
filteredPageSequence.push_back(item);
|
|
}
|
|
}
|
|
|
|
pageSequence = std::move(filteredPageSequence);
|
|
}
|
|
|
|
switch (mode)
|
|
{
|
|
case ComparedDocumentMapper::Mode::Left:
|
|
{
|
|
Q_ASSERT(leftDocument == currentDocument);
|
|
|
|
m_allLeft = true;
|
|
double yPos = 0.0;
|
|
const pdf::PDFCatalog* catalog = leftDocument->getCatalog();
|
|
|
|
if (isEmpty)
|
|
{
|
|
// Just copy all pages
|
|
const size_t pageCount = catalog->getPageCount();
|
|
for (size_t i = 0; i < pageCount; ++i)
|
|
{
|
|
QSizeF pageSize = catalog->getPage(i)->getRotatedMediaBoxMM().size();
|
|
QRectF rect(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
m_layout.emplace_back(0, i, -1, rect);
|
|
yPos += pageSize.height() + 5;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (const pdf::PDFDiffResult::PageSequenceItem& item : pageSequence)
|
|
{
|
|
if (item.leftPage == -1)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
QSizeF pageSize = catalog->getPage(item.leftPage)->getRotatedMediaBoxMM().size();
|
|
QRectF rect(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
m_layout.emplace_back(0, item.leftPage, -1, rect);
|
|
yPos += pageSize.height() + 5;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case ComparedDocumentMapper::Mode::Right:
|
|
{
|
|
Q_ASSERT(rightDocument == currentDocument);
|
|
|
|
m_allRight = true;
|
|
double yPos = 0.0;
|
|
const pdf::PDFCatalog* catalog = rightDocument->getCatalog();
|
|
|
|
if (isEmpty)
|
|
{
|
|
// Just copy all pages
|
|
const size_t pageCount = catalog->getPageCount();
|
|
for (size_t i = 0; i < pageCount; ++i)
|
|
{
|
|
QSizeF pageSize = catalog->getPage(i)->getRotatedMediaBoxMM().size();
|
|
QRectF rect(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
m_layout.emplace_back(0, i, -1, rect);
|
|
yPos += pageSize.height() + 5;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (const pdf::PDFDiffResult::PageSequenceItem& item : pageSequence)
|
|
{
|
|
if (item.rightPage == -1)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
QSizeF pageSize = catalog->getPage(item.rightPage)->getRotatedMediaBoxMM().size();
|
|
QRectF rect(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
m_layout.emplace_back(0, item.rightPage, -1, rect);
|
|
yPos += pageSize.height() + 5;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case ComparedDocumentMapper::Mode::Combined:
|
|
case ComparedDocumentMapper::Mode::Overlay:
|
|
{
|
|
double yPos = 0.0;
|
|
const pdf::PDFCatalog* catalog = currentDocument->getCatalog();
|
|
pdf::PDFInteger offset = leftDocument->getCatalog()->getPageCount();
|
|
|
|
for (const pdf::PDFDiffResult::PageSequenceItem& item : pageSequence)
|
|
{
|
|
double yAdvance = 0.0;
|
|
|
|
if (item.leftPage != -1)
|
|
{
|
|
QSizeF pageSize = catalog->getPage(item.leftPage)->getRotatedMediaBoxMM().size();
|
|
QRectF rect;
|
|
pdf::PDFInteger groupIndex = -1;
|
|
if (mode == ComparedDocumentMapper::Mode::Combined)
|
|
{
|
|
rect = QRectF(-pageSize.width() - 5, yPos, pageSize.width(), pageSize.height());
|
|
}
|
|
else
|
|
{
|
|
if (item.rightPage != -1)
|
|
{
|
|
groupIndex = 1;
|
|
}
|
|
rect = QRectF(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
}
|
|
m_layout.emplace_back(0, item.leftPage, groupIndex, rect);
|
|
yAdvance = pageSize.height() + 5;
|
|
m_leftPageIndices[item.leftPage] = item.leftPage;
|
|
}
|
|
|
|
if (item.rightPage != -1)
|
|
{
|
|
pdf::PDFInteger rightPageIndex = item.rightPage + offset;
|
|
QSizeF pageSize = catalog->getPage(rightPageIndex)->getRotatedMediaBoxMM().size();
|
|
QRectF rect;
|
|
pdf::PDFInteger groupIndex = -1;
|
|
if (mode == ComparedDocumentMapper::Mode::Combined)
|
|
{
|
|
rect = QRectF(5, yPos, pageSize.width(), pageSize.height());
|
|
}
|
|
else
|
|
{
|
|
if (item.leftPage != -1)
|
|
{
|
|
groupIndex = 2;
|
|
}
|
|
rect = QRectF(-pageSize.width() * 0.5, yPos, pageSize.width(), pageSize.height());
|
|
}
|
|
m_layout.emplace_back(0, rightPageIndex, groupIndex, rect);
|
|
yAdvance = qMax(yAdvance, pageSize.height() + 5);
|
|
m_rightPageIndices[rightPageIndex] = item.rightPage;
|
|
}
|
|
|
|
yPos += yAdvance;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
Q_ASSERT(false);
|
|
break;
|
|
}
|
|
}
|
|
|
|
pdf::PDFInteger ComparedDocumentMapper::getLeftPageIndex(pdf::PDFInteger pageIndex) const
|
|
{
|
|
if (m_allLeft)
|
|
{
|
|
return pageIndex;
|
|
}
|
|
|
|
auto it = m_leftPageIndices.find(pageIndex);
|
|
if (it != m_leftPageIndices.cend())
|
|
{
|
|
return it->second;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
pdf::PDFInteger ComparedDocumentMapper::getRightPageIndex(pdf::PDFInteger pageIndex) const
|
|
{
|
|
if (m_allRight)
|
|
{
|
|
return pageIndex;
|
|
}
|
|
|
|
auto it = m_rightPageIndices.find(pageIndex);
|
|
if (it != m_rightPageIndices.cend())
|
|
{
|
|
return it->second;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
pdf::PDFInteger ComparedDocumentMapper::getPageIndexFromLeftPageIndex(pdf::PDFInteger leftPageIndex) const
|
|
{
|
|
if (m_allLeft)
|
|
{
|
|
return leftPageIndex;
|
|
}
|
|
|
|
for (const auto& indexItem : m_leftPageIndices)
|
|
{
|
|
if (indexItem.second == leftPageIndex)
|
|
{
|
|
return indexItem.first;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
pdf::PDFInteger ComparedDocumentMapper::getPageIndexFromRightPageIndex(pdf::PDFInteger rightPageIndex) const
|
|
{
|
|
if (m_allRight)
|
|
{
|
|
return rightPageIndex;
|
|
}
|
|
|
|
for (const auto& indexItem : m_rightPageIndices)
|
|
{
|
|
if (indexItem.second == rightPageIndex)
|
|
{
|
|
return indexItem.first;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
DifferencesDrawInterface::DifferencesDrawInterface(const Settings* settings,
|
|
const ComparedDocumentMapper* mapper,
|
|
const pdf::PDFDiffResult* diffResult) :
|
|
m_settings(settings),
|
|
m_mapper(mapper),
|
|
m_diffResult(diffResult)
|
|
{
|
|
|
|
}
|
|
|
|
void DifferencesDrawInterface::drawPage(QPainter* painter,
|
|
pdf::PDFInteger pageIndex,
|
|
const pdf::PDFPrecompiledPage* compiledPage,
|
|
pdf::PDFTextLayoutGetter& layoutGetter,
|
|
const QTransform& pagePointToDevicePointMatrix,
|
|
QList<pdf::PDFRenderError>& errors) const
|
|
{
|
|
Q_UNUSED(compiledPage);
|
|
Q_UNUSED(layoutGetter);
|
|
Q_UNUSED(errors);
|
|
|
|
if (!m_settings->displayDifferences)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const size_t differencesCount = m_diffResult->getDifferencesCount();
|
|
const pdf::PDFInteger leftPageIndex = m_mapper->getLeftPageIndex(pageIndex);
|
|
const pdf::PDFInteger rightPageIndex = m_mapper->getRightPageIndex(pageIndex);
|
|
|
|
std::optional<size_t> pageMoveIndex;
|
|
|
|
if (leftPageIndex != -1)
|
|
{
|
|
for (size_t i = 0; i < differencesCount; ++i)
|
|
{
|
|
auto leftRectangles = m_diffResult->getLeftRectangles(i);
|
|
for (auto it = leftRectangles.first; it != leftRectangles.second; ++it)
|
|
{
|
|
const auto& item = *it;
|
|
if (item.first == leftPageIndex)
|
|
{
|
|
QColor color = getColorForIndex(i);
|
|
drawRectangle(painter, pagePointToDevicePointMatrix, item.second, color);
|
|
drawMarker(painter, pagePointToDevicePointMatrix, item.second, color, true);
|
|
}
|
|
}
|
|
|
|
if (m_diffResult->isPageMoveAddRemoveDifference(i) && m_diffResult->getLeftPage(i) == leftPageIndex)
|
|
{
|
|
pageMoveIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rightPageIndex != -1)
|
|
{
|
|
for (size_t i = 0; i < differencesCount; ++i)
|
|
{
|
|
auto rightRectangles = m_diffResult->getRightRectangles(i);
|
|
for (auto it = rightRectangles.first; it != rightRectangles.second; ++it)
|
|
{
|
|
const auto& item = *it;
|
|
if (item.first == rightPageIndex)
|
|
{
|
|
QColor color = getColorForIndex(i);
|
|
drawRectangle(painter, pagePointToDevicePointMatrix, item.second, color);
|
|
drawMarker(painter, pagePointToDevicePointMatrix, item.second, color, false);
|
|
}
|
|
}
|
|
|
|
if (m_diffResult->isPageMoveAddRemoveDifference(i) && m_diffResult->getRightPage(i) == rightPageIndex)
|
|
{
|
|
pageMoveIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (pageMoveIndex)
|
|
{
|
|
QString text;
|
|
|
|
switch (m_diffResult->getType(*pageMoveIndex))
|
|
{
|
|
case pdf::PDFDiffResult::Type::PageAdded:
|
|
text = " + ";
|
|
break;
|
|
|
|
case pdf::PDFDiffResult::Type::PageRemoved:
|
|
text = " - ";
|
|
break;
|
|
|
|
case pdf::PDFDiffResult::Type::PageMoved:
|
|
text = QString("%1🠖%2").arg(m_diffResult->getLeftPage(*pageMoveIndex) + 1).arg(m_diffResult->getRightPage(*pageMoveIndex) + 1);
|
|
break;
|
|
|
|
default:
|
|
Q_ASSERT(false);
|
|
break;
|
|
}
|
|
|
|
QColor color = getColorForIndex(*pageMoveIndex);
|
|
QPointF targetPoint = pagePointToDevicePointMatrix.map(QPointF(5, 5));
|
|
pdf::PDFPainterHelper::drawBubble(painter, targetPoint.toPoint(), color, text, Qt::AlignRight | Qt::AlignTop);
|
|
}
|
|
}
|
|
|
|
QColor DifferencesDrawInterface::getColorForIndex(size_t index) const
|
|
{
|
|
QColor color;
|
|
|
|
const size_t resultIndex = index;
|
|
|
|
if (m_diffResult->isReplaceDifference(resultIndex))
|
|
{
|
|
color = m_settings->colorReplaced;
|
|
}
|
|
else if (m_diffResult->isRemoveDifference(resultIndex))
|
|
{
|
|
color = m_settings->colorRemoved;
|
|
}
|
|
else if (m_diffResult->isAddDifference(resultIndex))
|
|
{
|
|
color = m_settings->colorAdded;
|
|
}
|
|
else if (m_diffResult->isPageMoveDifference(resultIndex))
|
|
{
|
|
color = m_settings->colorPageMove;
|
|
}
|
|
|
|
return color;
|
|
}
|
|
|
|
void DifferencesDrawInterface::drawPostRendering(QPainter* painter, QRect rect) const
|
|
{
|
|
Q_UNUSED(painter);
|
|
Q_UNUSED(rect);
|
|
}
|
|
|
|
void DifferencesDrawInterface::drawAnnotations(const pdf::PDFDocument* document,
|
|
pdf::PDFDocumentBuilder* builder)
|
|
{
|
|
pdf::PDFInteger pageCount = document->getCatalog()->getPageCount();
|
|
|
|
QString title = pdf::PDFSysUtils::getUserName();
|
|
QString subject = tr("Difference");
|
|
|
|
for (pdf::PDFInteger pageIndex = 0; pageIndex < pageCount; ++pageIndex)
|
|
{
|
|
const size_t differencesCount = m_diffResult->getDifferencesCount();
|
|
const pdf::PDFInteger leftPageIndex = m_mapper->getLeftPageIndex(pageIndex);
|
|
const pdf::PDFInteger rightPageIndex = m_mapper->getRightPageIndex(pageIndex);
|
|
|
|
const pdf::PDFPage* page = document->getCatalog()->getPage(pageIndex);
|
|
pdf::PDFObjectReference reference = page->getPageReference();
|
|
|
|
if (leftPageIndex != -1)
|
|
{
|
|
for (size_t i = 0; i < differencesCount; ++i)
|
|
{
|
|
auto leftRectangles = m_diffResult->getLeftRectangles(i);
|
|
for (auto it = leftRectangles.first; it != leftRectangles.second; ++it)
|
|
{
|
|
const auto& item = *it;
|
|
if (item.first == leftPageIndex)
|
|
{
|
|
QColor color = getColorForIndex(i);
|
|
const QRectF& rect = item.second;
|
|
QPolygonF polygon;
|
|
polygon << rect.topLeft() << rect.topRight() << rect.bottomRight() << rect.bottomLeft();
|
|
pdf::PDFObjectReference annotation = builder->createAnnotationPolygon(reference, polygon, 1.0, color, color, title, subject, m_diffResult->getMessage(i));
|
|
builder->setAnnotationOpacity(annotation, 0.3);
|
|
builder->updateAnnotationAppearanceStreams(annotation);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rightPageIndex != -1)
|
|
{
|
|
for (size_t i = 0; i < differencesCount; ++i)
|
|
{
|
|
auto rightRectangles = m_diffResult->getRightRectangles(i);
|
|
for (auto it = rightRectangles.first; it != rightRectangles.second; ++it)
|
|
{
|
|
const auto& item = *it;
|
|
if (item.first == rightPageIndex)
|
|
{
|
|
QColor color = getColorForIndex(i);
|
|
const QRectF& rect = item.second;
|
|
QPolygonF polygon;
|
|
polygon << rect.topLeft() << rect.topRight() << rect.bottomRight() << rect.bottomLeft();
|
|
pdf::PDFObjectReference annotation = builder->createAnnotationPolygon(reference, polygon, 1.0, color, color, title, subject, m_diffResult->getMessage(i));
|
|
builder->setAnnotationOpacity(annotation, 0.3);
|
|
builder->updateAnnotationAppearanceStreams(annotation);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void DifferencesDrawInterface::drawRectangle(QPainter* painter,
|
|
const QTransform& pagePointToDevicePointMatrix,
|
|
const QRectF& rect,
|
|
QColor color) const
|
|
{
|
|
color.setAlphaF(0.5);
|
|
|
|
QRectF resultRect = pagePointToDevicePointMatrix.mapRect(rect);
|
|
painter->fillRect(resultRect, color);
|
|
}
|
|
|
|
void DifferencesDrawInterface::drawMarker(QPainter* painter,
|
|
const QTransform& pagePointToDevicePointMatrix,
|
|
const QRectF& rect,
|
|
QColor color,
|
|
bool isLeft) const
|
|
{
|
|
if (!m_settings->displayMarkers)
|
|
{
|
|
return;
|
|
}
|
|
|
|
pdf::PDFPainterStateGuard guard(painter);
|
|
QRectF deviceRect = pagePointToDevicePointMatrix.mapRect(rect);
|
|
|
|
QPointF snapPoint;
|
|
QPointF markPoint;
|
|
|
|
if (isLeft)
|
|
{
|
|
snapPoint.ry() = deviceRect.center().y();
|
|
snapPoint.rx() = deviceRect.left();
|
|
markPoint = snapPoint;
|
|
markPoint.rx() = 0;
|
|
}
|
|
else
|
|
{
|
|
snapPoint.ry() = deviceRect.center().y();
|
|
snapPoint.rx() = deviceRect.right();
|
|
markPoint = snapPoint;
|
|
markPoint.rx() = painter->device()->width();
|
|
}
|
|
|
|
const qreal lineWidthF = pdf::PDFWidgetUtils::scaleDPI_y(painter->device(), 2);
|
|
|
|
QPen pen(Qt::DotLine);
|
|
pen.setColor(color);
|
|
pen.setWidthF(lineWidthF);
|
|
|
|
painter->setBrush(Qt::NoBrush);
|
|
painter->setPen(pen);
|
|
painter->drawLine(snapPoint, markPoint);
|
|
|
|
const qreal markSizeX = pdf::PDFWidgetUtils::scaleDPI_x(painter->device(), 10);
|
|
const qreal markSizeY = pdf::PDFWidgetUtils::scaleDPI_y(painter->device(), 10);
|
|
|
|
QPointF ptc = markPoint;
|
|
QPointF ptTop = ptc;
|
|
QPointF ptBottom = ptc;
|
|
|
|
ptTop.ry() -= markSizeY;
|
|
ptBottom.ry() += markSizeY;
|
|
ptc.rx() += isLeft ? markSizeX : -markSizeX;
|
|
|
|
std::array points = { ptTop, ptc, ptBottom };
|
|
|
|
painter->setPen(Qt::NoPen);
|
|
painter->setBrush(QBrush(color));
|
|
painter->drawConvexPolygon(points.data(), int(points.size()));
|
|
}
|
|
|
|
} // namespace pdfdocdiff
|