#include "qmovewindowmanager.h"
#include "qevent.h"

QMoveWindowManager::QMoveWindowManager(QWidget *parent, QRect hit/*=QRect()*/) : QObject(parent), m_bLeftButtonPress(false)
{
	m_parent = parent;
	m_hit = hit;
}

QMoveWindowManager::~QMoveWindowManager()
{

}

bool QMoveWindowManager::eventFilter(QObject * obj, QEvent * evt)
{
	QMouseEvent * event;
	switch (evt->type()){
	case QEvent::MouseButtonPress:
		event = (QMouseEvent *)evt;
		if (event->button() == Qt::LeftButton)
		{
			if (!m_hit.isValid() || m_hit.contains(event->pos())){
				m_ptPress = event->globalPos();
				if (!m_parent->isMaximized() && !m_parent->isMinimized()) m_bLeftButtonPress = true;
			}
		}
		break;
	case QEvent::MouseMove:
		event = (QMouseEvent *)evt;
		if (m_bLeftButtonPress)
		{
			m_ptMove = event->globalPos();
			//Òƶ¯Ö÷´°¿Ú
			m_parent->move(m_parent->pos() + m_ptMove - m_ptPress);
			m_ptPress = m_ptMove;
		}
		break;
	case QEvent::MouseButtonRelease:
		event = (QMouseEvent *)evt;
		if (event->button() == Qt::LeftButton)
		{
			m_bLeftButtonPress = false;
		}
		break;
	}
	return false;
}