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Add mouse event support for QmlPlainTextEdit

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This commit is contained in:
Alex Spataru 2021-02-10 13:25:14 -05:00
parent 9f7a4f0666
commit 7fdd1aa281
3 changed files with 67 additions and 35 deletions
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6
assets/qml/Windows/Console.qml
View File

@ -143,6 +143,11 @@ Control {
wordWrapMode: Text.WrapAtWordBoundaryOrAnywhere
placeholderText: qsTr("No data received so far") + "..."
onFocusChanged: {
textEdit.focusWidget()
textEdit.forceActiveFocus()
}
Connections {
target: Cpp_IO_Console
@ -157,6 +162,7 @@ Control {
MouseArea {
anchors.fill: parent
enabled: false
propagateComposedEvents: false
acceptedButtons: Qt.RightButton | Qt.LeftButton
onClicked: {

88
src/UI/QmlPlainTextEdit.cpp
View File

@ -49,6 +49,7 @@ QmlPlainTextEdit::QmlPlainTextEdit(QQuickItem *parent)
// Set item flags
setFlag(ItemHasContents, true);
setFlag(ItemAcceptsInputMethod, true);
setFlag(ItemIsFocusScope, true);
setAcceptedMouseButtons(Qt::AllButtons);
// Initialize the text edit widget
@ -92,15 +93,15 @@ bool QmlPlainTextEdit::event(QEvent *event)
forceActiveFocus();
return QQuickPaintedItem::event(event);
break;
case QEvent::MouseButtonDblClick:
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseMove:
routeMouseEvents(static_cast<QMouseEvent *>(event));
case QEvent::Wheel:
processWheelEvents(static_cast<QWheelEvent *>(event));
return true;
break;
case QEvent::Wheel:
routeWheelEvents(static_cast<QWheelEvent *>(event));
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
case QEvent::MouseMove:
processMouseEvents(static_cast<QMouseEvent *>(event));
return true;
break;
default:
@ -264,30 +265,6 @@ QString QmlPlainTextEdit::placeholderText() const
return m_textEdit->placeholderText();
}
/**
* Process mouse incoming from the QML interface
*/
void QmlPlainTextEdit::routeMouseEvents(QMouseEvent *event)
{
QMouseEvent *newEvent
= new QMouseEvent(event->type(), event->localPos(), event->button(),
event->buttons(), event->modifiers());
m_textEdit->setFocus(Qt::ActiveWindowFocusReason);
m_textEdit->grabMouse();
QApplication::postEvent(m_textEdit, newEvent);
}
/**
* Process mouse wheel incoming from the QML interface
*/
void QmlPlainTextEdit::routeWheelEvents(QWheelEvent *event)
{
QWheelEvent *newEvent
= new QWheelEvent(event->position(), event->delta(), event->buttons(),
event->modifiers(), event->orientation());
QApplication::postEvent(m_textEdit, newEvent);
}
/**
* Copies any selected text to the clipboard.
*/
@ -560,3 +537,52 @@ void QmlPlainTextEdit::setCopyAvailable(const bool yes)
m_copyAvailable = yes;
emit copyAvailableChanged();
}
/**
* Hack: call the appropiate protected mouse event handler function of the QPlainTextEdit
* item depending on event type
*/
void QmlPlainTextEdit::processMouseEvents(QMouseEvent *event)
{
class Hack : public QPlainTextEdit
{
public:
using QPlainTextEdit::mouseDoubleClickEvent;
using QPlainTextEdit::mouseMoveEvent;
using QPlainTextEdit::mousePressEvent;
using QPlainTextEdit::mouseReleaseEvent;
};
auto hack = static_cast<Hack *>(m_textEdit);
switch (event->type())
{
case QEvent::MouseButtonPress:
hack->mousePressEvent(event);
break;
case QEvent::MouseMove:
hack->mouseMoveEvent(event);
break;
case QEvent::MouseButtonRelease:
hack->mouseReleaseEvent(event);
break;
case QEvent::MouseButtonDblClick:
hack->mouseDoubleClickEvent(event);
break;
default:
break;
}
}
/**
* Hack: call the protected wheel event handler function of the QPlainTextEdit item
*/
void QmlPlainTextEdit::processWheelEvents(QWheelEvent *event)
{
class Hack : public QPlainTextEdit
{
public:
using QPlainTextEdit::wheelEvent;
};
static_cast<Hack *>(m_textEdit)->wheelEvent(event);
}

8
src/UI/QmlPlainTextEdit.h
View File

@ -125,10 +125,6 @@ public:
int maximumBlockCount() const;
QString placeholderText() const;
protected:
void routeMouseEvents(QMouseEvent *event);
void routeWheelEvents(QWheelEvent *event);
public slots:
void copy();
void clear();
@ -154,6 +150,10 @@ private slots:
void updateWidgetSize();
void setCopyAvailable(const bool yes);
protected:
void processMouseEvents(QMouseEvent *event);
void processWheelEvents(QWheelEvent *event);
private:
QColor m_color;
bool m_autoscroll;