KisMouseClickEater Class Reference

#include <KisMouseClickEater.h>

Inheritance diagram for KisMouseClickEater:

Public Member Functions
bool	eventFilter (QObject *watched, QEvent *event) override
	KisMouseClickEater (Qt::MouseButtons buttons, int clicksToEat=1, QObject *parent=0)
void	reset ()
	~KisMouseClickEater ()

Private Attributes
Qt::MouseButtons	m_buttons = Qt::NoButton
int	m_clicksHappened = 0
int	m_clicksToEat = 1
QElapsedTimer	m_timeSinceReset

Detailed Description

Definition at line 15 of file KisMouseClickEater.h.

Constructor & Destructor Documentation

KisMouseClickEater()

KisMouseClickEater::KisMouseClickEater	(	Qt::MouseButtons	buttons,
		int	clicksToEat = 1,
		QObject *	parent = 0 )

Definition at line 12 of file KisMouseClickEater.cpp.

    : QObject(parent),
      m_buttons(buttons),
      m_clicksToEat(clicksToEat)
{
    reset();
}

References reset().

~KisMouseClickEater()

KisMouseClickEater::~KisMouseClickEater

(

)

Definition at line 22 of file KisMouseClickEater.cpp.

{
}

Member Function Documentation

eventFilter()

bool KisMouseClickEater::eventFilter ( QObject * watched, QEvent * event )

override

Definition at line 32 of file KisMouseClickEater.cpp.

{
#ifdef Q_OS_WIN
    const int tabletMouseEventsFlowDelay = 500;
#else
    const int tabletMouseEventsFlowDelay = 256;
#endif
 
    bool blockTimedRelease = false;
 
    if (event->type() == QEvent::TabletMove) {
        blockTimedRelease = true;
    }
 
    if (!blockTimedRelease &&
        m_timeSinceReset.elapsed() > tabletMouseEventsFlowDelay) {
        return QObject::eventFilter(watched, event);
    }
 
    if (event->type() == QEvent::MouseButtonPress ||
        event->type() == QEvent::MouseButtonRelease) {
 
        QMouseEvent *mevent = static_cast<QMouseEvent*>(event);
        if (mevent->button() & m_buttons) {
            if (m_clicksHappened >= m_clicksToEat) {
                return false;
            }
 
            if (event->type() == QEvent::MouseButtonRelease) {
                m_clicksHappened++;
            }
 
            return true;
        }
    }
 
    if (event->type() == QEvent::MouseMove) {
        QMouseEvent *mevent = static_cast<QMouseEvent*>(event);
        if (mevent->buttons() & m_buttons) {
            return m_clicksHappened < m_clicksToEat;
        }
    }
 
    return QObject::eventFilter(watched, event);
}

References m_buttons, m_clicksHappened, m_clicksToEat, and m_timeSinceReset.

reset()

void KisMouseClickEater::reset

(

)

Definition at line 26 of file KisMouseClickEater.cpp.

{
    m_clicksHappened = 0;
    m_timeSinceReset.start();
}

References m_clicksHappened, and m_timeSinceReset.

Member Data Documentation

m_buttons

Qt::MouseButtons KisMouseClickEater::m_buttons = Qt::NoButton

private

Definition at line 28 of file KisMouseClickEater.h.

m_clicksHappened

int KisMouseClickEater::m_clicksHappened = 0

private

Definition at line 30 of file KisMouseClickEater.h.

m_clicksToEat

int KisMouseClickEater::m_clicksToEat = 1

private

Definition at line 29 of file KisMouseClickEater.h.

m_timeSinceReset

QElapsedTimer KisMouseClickEater::m_timeSinceReset

private

Definition at line 31 of file KisMouseClickEater.h.

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The documentation for this class was generated from the following files:

• libs/ui/KisMouseClickEater.h
• libs/ui/KisMouseClickEater.cpp