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Extract image tool

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This commit is contained in:
Jakub Melka
2020-02-29 14:26:36 +01:00
parent 9de47cc183
commit 475103f5d5
9 changed files with 587 additions and 60 deletions
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71
PdfForQtLib/sources/pdfsnapper.cpp
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@ -47,7 +47,7 @@ void PDFSnapInfo::addPageMediaBox(const QRectF& mediaBox)
addLine(tl, bl);
}
void PDFSnapInfo::addImage(const std::array<QPointF, 5>& points)
void PDFSnapInfo::addImage(const std::array<QPointF, 5>& points, const QImage& image)
{
m_snapPoints.insert(m_snapPoints.cend(), {
SnapPoint(SnapType::ImageCorner, points[0]),
@ -61,6 +61,15 @@ void PDFSnapInfo::addImage(const std::array<QPointF, 5>& points)
{
addLine(points[i], points[(i + 1) % 4]);
}
SnapImage snapImage;
snapImage.imagePath.moveTo(points[0]);
snapImage.imagePath.lineTo(points[1]);
snapImage.imagePath.lineTo(points[2]);
snapImage.imagePath.lineTo(points[3]);
snapImage.imagePath.lineTo(points[0]);
snapImage.image = image;
m_snapImages.emplace_back(qMove(snapImage));
}
void PDFSnapInfo::addLine(const QPointF& start, const QPointF& end)
@ -140,6 +149,7 @@ bool PDFSnapper::isSnappingAllowed(PDFInteger pageIndex) const
void PDFSnapper::updateSnappedPoint(const QPointF& mousePoint)
{
m_snappedPoint = std::nullopt;
m_snappedImage = std::nullopt;
m_mousePoint = mousePoint;
// Iterate trough all points, check, if some satisfies condition
@ -151,7 +161,17 @@ void PDFSnapper::updateSnappedPoint(const QPointF& mousePoint)
if (distanceSquared < toleranceSquared && isSnappingAllowed(snapPoint.pageIndex))
{
m_snappedPoint = snapPoint;
return;
break;
}
}
// Iterate trough all images, check, if some is under mouse cursor
for (const ViewportSnapImage& snapImage : m_snapImages)
{
if (snapImage.viewportPath.contains(mousePoint))
{
m_snappedImage = snapImage;
break;
}
}
}
@ -220,6 +240,32 @@ void PDFSnapper::buildSnapPoints(const PDFWidgetSnapshot& snapshot)
updateSnappedPoint(m_mousePoint);
}
void PDFSnapper::buildSnapImages(const PDFWidgetSnapshot& snapshot)
{
// First, clear all snap images
m_snapImages.clear();
// Second, create snapping points from snapshot
for (const PDFWidgetSnapshot::SnapshotItem& item : snapshot.items)
{
if (!item.compiledPage)
{
continue;
}
const PDFSnapInfo* info = item.compiledPage->getSnapInfo();
for (const PDFSnapInfo::SnapImage& snapImage : info->getSnapImages())
{
ViewportSnapImage viewportSnapImage;
viewportSnapImage.image = snapImage.image;
viewportSnapImage.imagePath = snapImage.imagePath;
viewportSnapImage.pageIndex = item.pageIndex;
viewportSnapImage.viewportPath = item.pageToDeviceMatrix.map(snapImage.imagePath);
m_snapImages.emplace_back(qMove(viewportSnapImage));
}
}
}
int PDFSnapper::getSnapPointTolerance() const
{
return m_snapPointTolerance;
@ -240,6 +286,16 @@ QPointF PDFSnapper::getSnappedPoint() const
return m_mousePoint;
}
const PDFSnapper::ViewportSnapImage* PDFSnapper::getSnappedImage() const
{
if (m_snappedImage.has_value())
{
return &*m_snappedImage;
}
return nullptr;
}
void PDFSnapper::setReferencePoint(PDFInteger pageIndex, QPointF pagePoint)
{
m_currentPage = pageIndex;
@ -252,4 +308,15 @@ void PDFSnapper::clearReferencePoint()
m_referencePoint = std::nullopt;
}
void PDFSnapper::clear()
{
clearReferencePoint();
m_snapPoints.clear();
m_snapImages.clear();
m_snappedPoint = std::nullopt;
m_snappedImage = std::nullopt;
m_mousePoint = QPointF();
}
} // namespace pdf