fenix/PDF4QT
1
0
Fork 0
mirror of https://github.com/JakubMelka/PDF4QT.git synced 2025-06-05 21:59:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Text highlight annotations

Browse Source
This commit is contained in:
Jakub Melka
2020-12-12 18:08:37 +01:00
parent dc55950050
commit a6ce36a00c
10 changed files with 1203 additions and 234 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
PdfForQtLib/sources/pdfadvancedtools.cpp
View File

@ -857,12 +857,15 @@ void PDFCreateStampTool::onPointPicked(PDFInteger pageIndex, QPointF pagePoint)
setActive(false);
}
PDFCreateHighlightTextTool::PDFCreateHighlightTextTool(PDFDrawWidgetProxy* proxy, PDFToolManager* toolManager, AnnotationType type, QAction* action, QObject* parent) :
BaseClass(proxy, action, parent),
PDFCreateHighlightTextTool::PDFCreateHighlightTextTool(PDFDrawWidgetProxy* proxy, PDFToolManager* toolManager, QActionGroup* actionGroup, QObject* parent) :
BaseClass(proxy, parent),
m_toolManager(toolManager),
m_type(type),
m_actionGroup(actionGroup),
m_type(AnnotationType::Highlight),
m_isCursorOverText(false)
{
connect(m_actionGroup, &QActionGroup::triggered, this, &PDFCreateHighlightTextTool::onActionTriggered);
updateActions();
}
@ -918,13 +921,55 @@ void PDFCreateHighlightTextTool::mouseReleaseEvent(QWidget* widget, QMouseEvent*
if (m_selectionInfo.pageIndex == pageIndex)
{
// Jakub Melka: handle the selection
PDFTextLayout textLayout = getProxy()->getTextLayoutCompiler()->getTextLayoutLazy(pageIndex);
PDFTextLayoutGetter textLayoutGetter = getProxy()->getTextLayoutCompiler()->getTextLayoutLazy(pageIndex);
PDFTextLayout textLayout = textLayoutGetter;
setSelection(textLayout.createTextSelection(pageIndex, m_selectionInfo.selectionStartPoint, pagePoint));
QPolygonF quadrilaterals;
PDFTextSelectionPainter textSelectionPainter(&m_textSelection);
QPainterPath path = textSelectionPainter.prepareGeometry(pageIndex, textLayoutGetter, QMatrix(), &quadrilaterals);
if (!path.isEmpty())
{
PDFDocumentModifier modifier(getDocument());
PDFObjectReference page = getDocument()->getCatalog()->getPage(pageIndex)->getPageReference();
PDFObjectReference annotationReference;
switch (m_type)
{
case AnnotationType::Highlight:
annotationReference = modifier.getBuilder()->createAnnotationHighlight(page, quadrilaterals, Qt::yellow);
modifier.getBuilder()->setAnnotationOpacity(annotationReference, 0.2);
modifier.getBuilder()->updateAnnotationAppearanceStreams(annotationReference);
break;
case AnnotationType::Underline:
annotationReference = modifier.getBuilder()->createAnnotationUnderline(page, quadrilaterals, Qt::black);
break;
case AnnotationType::Squiggly:
annotationReference = modifier.getBuilder()->createAnnotationSquiggly(page, quadrilaterals, Qt::red);
break;
case AnnotationType::StrikeOut:
annotationReference = modifier.getBuilder()->createAnnotationStrikeout(page, quadrilaterals, Qt::red);
break;
default:
Q_ASSERT(false);
break;
}
modifier.markAnnotationsChanged();
if (modifier.finalize())
{
emit m_toolManager->documentModified(PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
else
{
setSelection(pdf::PDFTextSelection());
}
setSelection(pdf::PDFTextSelection());
m_selectionInfo = SelectionInfo();
event->accept();
@ -960,6 +1005,22 @@ void PDFCreateHighlightTextTool::mouseMoveEvent(QWidget* widget, QMouseEvent* ev
updateCursor();
}
void PDFCreateHighlightTextTool::updateActions()
{
BaseClass::updateActions();
if (m_actionGroup)
{
const bool isEnabled = getDocument() && getDocument()->getStorage().getSecurityHandler()->isAllowed(PDFSecurityHandler::Permission::ModifyInteractiveItems);
m_actionGroup->setEnabled(isEnabled);
if (!isActive() && m_actionGroup->checkedAction())
{
m_actionGroup->checkedAction()->setChecked(false);
}
}
}
void PDFCreateHighlightTextTool::setActiveImpl(bool active)
{
BaseClass::setActiveImpl(active);
@ -971,6 +1032,16 @@ void PDFCreateHighlightTextTool::setActiveImpl(bool active)
}
}
void PDFCreateHighlightTextTool::onActionTriggered(QAction* action)
{
setActive(action && action->isChecked());
if (action)
{
m_type = static_cast<AnnotationType>(action->data().toInt());
}
}
void PDFCreateHighlightTextTool::updateCursor()
{
if (isActive())