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Signature plugin: Freehand curve

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Jakub Melka
2022-02-27 19:59:53 +01:00
parent 7d84f26476
commit f34f10ebb7
6 changed files with 252 additions and 0 deletions
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126
Pdf4QtLib/sources/pdfpagecontenteditortools.cpp
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@ -21,6 +21,7 @@
#include <QPen>
#include <QPainter>
#include <QMouseEvent>
namespace pdf
{
@ -368,4 +369,129 @@ void PDFCreatePCElementDotTool::onPointPicked(PDFInteger pageIndex, QPointF page
setActive(false);
}
PDFCreatePCElementFreehandCurveTool::PDFCreatePCElementFreehandCurveTool(PDFDrawWidgetProxy* proxy,
PDFPageContentScene* scene,
QAction* action,
QObject* parent) :
BaseClass(proxy, scene, action, parent),
m_element(nullptr)
{
QPen pen(Qt::SolidLine);
pen.setWidthF(2.0);
pen.setCapStyle(Qt::RoundCap);
m_element = new PDFPageContentElementFreehandCurve();
m_element->setBrush(Qt::NoBrush);
m_element->setPen(std::move(pen));
}
PDFCreatePCElementFreehandCurveTool::~PDFCreatePCElementFreehandCurveTool()
{
delete m_element;
}
void PDFCreatePCElementFreehandCurveTool::drawPage(QPainter* painter,
PDFInteger pageIndex,
const PDFPrecompiledPage* compiledPage,
PDFTextLayoutGetter& layoutGetter,
const QMatrix& pagePointToDevicePointMatrix,
QList<PDFRenderError>& errors) const
{
BaseClass::drawPage(painter, pageIndex, compiledPage, layoutGetter, pagePointToDevicePointMatrix, errors);
if (pageIndex != m_element->getPageIndex() || m_element->isEmpty())
{
return;
}
m_element->drawPage(painter, pageIndex, compiledPage, layoutGetter, pagePointToDevicePointMatrix, errors);
}
void PDFCreatePCElementFreehandCurveTool::mousePressEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
event->accept();
if (event->button() == Qt::LeftButton)
{
// Try to perform pick point
QPointF pagePoint;
PDFInteger pageIndex = getProxy()->getPageUnderPoint(event->pos(), &pagePoint);
if (pageIndex != -1 && // We have picked some point on page
(m_element->getPageIndex() == -1 || m_element->getPageIndex() == pageIndex)) // We are under current page
{
m_element->setPageIndex(pageIndex);
m_element->addStartPoint(pagePoint);
}
}
else if (event->button() == Qt::RightButton)
{
resetTool();
}
emit getProxy()->repaintNeeded();
}
void PDFCreatePCElementFreehandCurveTool::mouseReleaseEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
event->accept();
if (event->button() == Qt::LeftButton)
{
// Try to perform pick point
QPointF pagePoint;
PDFInteger pageIndex = getProxy()->getPageUnderPoint(event->pos(), &pagePoint);
if (pageIndex != -1 && // We have picked some point on page
(m_element->getPageIndex() == pageIndex)) // We are under current page
{
m_element->setPageIndex(pageIndex);
m_element->addPoint(pagePoint);
if (!m_element->isEmpty())
{
m_scene->addElement(m_element->clone());
}
}
resetTool();
}
emit getProxy()->repaintNeeded();
}
void PDFCreatePCElementFreehandCurveTool::mouseMoveEvent(QWidget* widget, QMouseEvent* event)
{
Q_UNUSED(widget);
event->accept();
if (event->buttons() & Qt::LeftButton && m_element->getPageIndex() != -1)
{
// Try to add point to the path
QPointF pagePoint;
PDFInteger pageIndex = getProxy()->getPageUnderPoint(event->pos(), &pagePoint);
if (pageIndex == m_element->getPageIndex())
{
m_element->addPoint(pagePoint);
}
emit getProxy()->repaintNeeded();
}
}
void PDFCreatePCElementFreehandCurveTool::setActiveImpl(bool active)
{
BaseClass::setActiveImpl(active);
if (!active)
{
resetTool();
}
}
void PDFCreatePCElementFreehandCurveTool::resetTool()
{
m_element->clear();
}
} // namespace pdf