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Input event processing refactoring

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This commit is contained in:
Jakub Melka
2020-04-20 19:03:32 +02:00
parent bf76e3aa22
commit b654ce463a
8 changed files with 181 additions and 131 deletions
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178
PdfForQtLib/sources/pdfdrawwidget.cpp
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@ -173,6 +173,38 @@ IDrawWidget* PDFWidget::createDrawWidget(RendererEngine rendererEngine, int samp
return nullptr;
}
void PDFWidget::removeInputInterface(IDrawWidgetInputInterface* inputInterface)
{
auto it = std::find(m_inputInterfaces.begin(), m_inputInterfaces.end(), inputInterface);
if (it != m_inputInterfaces.end())
{
m_inputInterfaces.erase(it);
}
}
void PDFWidget::addInputInterface(IDrawWidgetInputInterface* inputInterface)
{
if (inputInterface)
{
m_inputInterfaces.push_back(inputInterface);
std::sort(m_inputInterfaces.begin(), m_inputInterfaces.end(), IDrawWidgetInputInterface::Comparator());
}
}
void PDFWidget::setToolManager(PDFToolManager* toolManager)
{
removeInputInterface(m_toolManager);
m_toolManager = toolManager;
addInputInterface(m_toolManager);
}
void PDFWidget::setAnnotationManager(PDFWidgetAnnotationManager* annotationManager)
{
removeInputInterface(m_annotationManager);
m_annotationManager = annotationManager;
addInputInterface(m_annotationManager);
}
template<typename BaseWidget>
PDFDrawWidgetBase<BaseWidget>::PDFDrawWidgetBase(PDFWidget* widget, QWidget* parent) :
BaseWidget(parent),
@ -217,31 +249,42 @@ void PDFDrawWidgetBase<BaseWidget>::performMouseOperation(QPoint currentMousePos
}
}
template<typename BaseWidget>
template<typename Event, void (IDrawWidgetInputInterface::* Function)(QWidget*, Event*)>
bool PDFDrawWidgetBase<BaseWidget>::processEvent(Event* event)
{
QString tooltip;
for (IDrawWidgetInputInterface* inputInterface : m_widget->getInputInterfaces())
{
(inputInterface->*Function)(this, event);
// Update tooltip
if (tooltip.isEmpty())
{
tooltip = inputInterface->getTooltip();
}
// If event is accepted, then update cursor/tooltip and return
if (event->isAccepted())
{
setToolTip(tooltip);
updateCursor();
return true;
}
}
setToolTip(tooltip);
return false;
}
template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::keyPressEvent(QKeyEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
if (processEvent<QKeyEvent, &IDrawWidgetInputInterface::keyPressEvent>(event))
{
toolManager->keyPressEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (PDFWidgetAnnotationManager* annotationManager = getPDFWidget()->getDrawWidgetProxy()->getAnnotationManager())
{
annotationManager->keyPressEvent(this, event);
setToolTip(annotationManager->getTooltip());
if (event->isAccepted())
{
updateCursor();
return;
}
return;
}
// Vertical navigation
@ -276,26 +319,9 @@ void PDFDrawWidgetBase<BaseWidget>::mousePressEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
if (processEvent<QMouseEvent, &IDrawWidgetInputInterface::mousePressEvent>(event))
{
toolManager->mousePressEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (PDFWidgetAnnotationManager* annotationManager = getPDFWidget()->getDrawWidgetProxy()->getAnnotationManager())
{
annotationManager->mousePressEvent(this, event);
setToolTip(annotationManager->getTooltip());
if (event->isAccepted())
{
updateCursor();
return;
}
return;
}
if (event->button() == Qt::LeftButton)
@ -313,26 +339,9 @@ void PDFDrawWidgetBase<BaseWidget>::mouseReleaseEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
if (processEvent<QMouseEvent, &IDrawWidgetInputInterface::mouseReleaseEvent>(event))
{
toolManager->mouseReleaseEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (PDFWidgetAnnotationManager* annotationManager = getPDFWidget()->getDrawWidgetProxy()->getAnnotationManager())
{
annotationManager->mouseReleaseEvent(this, event);
setToolTip(annotationManager->getTooltip());
if (event->isAccepted())
{
updateCursor();
return;
}
return;
}
performMouseOperation(event->pos());
@ -361,26 +370,9 @@ void PDFDrawWidgetBase<BaseWidget>::mouseMoveEvent(QMouseEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
if (processEvent<QMouseEvent, &IDrawWidgetInputInterface::mouseMoveEvent>(event))
{
toolManager->mouseMoveEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (PDFWidgetAnnotationManager* annotationManager = getPDFWidget()->getDrawWidgetProxy()->getAnnotationManager())
{
annotationManager->mouseMoveEvent(this, event);
setToolTip(annotationManager->getTooltip());
if (event->isAccepted())
{
updateCursor();
return;
}
return;
}
performMouseOperation(event->pos());
@ -392,16 +384,15 @@ template<typename BaseWidget>
void PDFDrawWidgetBase<BaseWidget>::updateCursor()
{
std::optional<QCursor> cursor;
if (PDFToolManager* toolManager = m_widget->getToolManager())
{
cursor = toolManager->getCursor();
}
if (!cursor)
for (IDrawWidgetInputInterface* inputInterface : m_widget->getInputInterfaces())
{
if (PDFWidgetAnnotationManager* annotationManager = m_widget->getDrawWidgetProxy()->getAnnotationManager())
cursor = inputInterface->getCursor();
if (cursor)
{
cursor = annotationManager->getCursor();
// We have found cursor
break;
}
}
@ -438,26 +429,9 @@ void PDFDrawWidgetBase<BaseWidget>::wheelEvent(QWheelEvent* event)
{
event->ignore();
// Try to pass event to tool manager
if (PDFToolManager* toolManager = getPDFWidget()->getToolManager())
if (processEvent<QWheelEvent, &IDrawWidgetInputInterface::wheelEvent>(event))
{
toolManager->wheelEvent(this, event);
if (event->isAccepted())
{
updateCursor();
return;
}
}
if (PDFWidgetAnnotationManager* annotationManager = getPDFWidget()->getDrawWidgetProxy()->getAnnotationManager())
{
annotationManager->wheelEvent(this, event);
setToolTip(annotationManager->getTooltip());
if (event->isAccepted())
{
updateCursor();
return;
}
return;
}
Qt::KeyboardModifiers keyboardModifiers = QApplication::keyboardModifiers();