69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#include "appinit.h"
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//#include "qmutex.h"
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#include "qapplication.h"
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#include "qevent.h"
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#include "qwidget.h"
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AppInit AppInit::self;
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AppInit *AppInit::Instance()
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{
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// if (!self)
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// {
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// QMutex mutex;
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// QMutexLocker locker(&mutex);
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// if (!self)
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// {
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// self = new AppInit;
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// }
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// }
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return &self;
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}
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AppInit::AppInit(QObject *parent) : QObject(parent)
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{
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}
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bool AppInit::eventFilter(QObject *obj, QEvent *evt)
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{
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QWidget *w = (QWidget *)obj;
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if (!w->property("canMove").toBool())
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{
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return QObject::eventFilter(obj, evt);
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}
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static QPoint mousePoint;
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static bool mousePressed = false;
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QMouseEvent *event = static_cast<QMouseEvent *>(evt);
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if (event->type() == QEvent::MouseButtonPress)
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{
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if (event->button() == Qt::LeftButton)
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{
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mousePressed = true;
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mousePoint = event->globalPos() - w->pos();
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return true;
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}
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}
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else if (event->type() == QEvent::MouseButtonRelease)
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{
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mousePressed = false;
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return true;
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}
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else if (event->type() == QEvent::MouseMove)
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{
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if (mousePressed && (event->buttons() && Qt::LeftButton))
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{
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w->move(event->globalPos() - mousePoint);
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return true;
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}
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}
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return QObject::eventFilter(obj, evt);
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}
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void AppInit::start()
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{
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qApp->installEventFilter(this);
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}
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