145 lines
3.5 KiB
C++
145 lines
3.5 KiB
C++
#include "timeLineWidget.h"
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#include "timeLineItem.h"
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#include <QGraphicsScene>
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#include <QColor>
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#include <QDateTime>
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#include <QWheelEvent>
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class TimeLineWidgetPrivate
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{
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public:
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TimeLineWidgetPrivate();
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QGraphicsScene* m_pScene;
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QColor m_background_color;
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bool m_bMousePress;
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QPoint m_ptMousePress;
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QDateTime m_timeMousePress;
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TimeLine::TimeLineItem* m_timeLineItem;
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};
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TimeLineWidgetPrivate::TimeLineWidgetPrivate()
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{
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m_bMousePress = false;
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}
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TimeLineWidget::TimeLineWidget(QWidget *parent)
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: QGraphicsView(parent)
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, d_ptr(new TimeLineWidgetPrivate)
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{
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d_ptr->m_pScene = new QGraphicsScene;
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setScene(d_ptr->m_pScene);
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d_ptr->m_timeLineItem = new TimeLine::TimeLineItem();
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d_ptr->m_pScene->addItem(d_ptr->m_timeLineItem);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setFrameShape(NoFrame);
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}
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TimeLineWidget::~TimeLineWidget()
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{
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delete d_ptr;
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}
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void TimeLineWidget::resizeEvent(QResizeEvent* e)
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{
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d_ptr->m_pScene->setSceneRect(-width() / 2, -height() / 2, width(), height());
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d_ptr->m_timeLineItem->updateBoundingRect(childrenRect());
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}
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void TimeLineWidget::mousePressEvent(QMouseEvent* e)
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{
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if (Qt::LeftButton == e->button())
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{
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d_ptr->m_bMousePress = true;
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d_ptr->m_ptMousePress = e->pos();
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d_ptr->m_timeMousePress = d_ptr->m_timeLineItem->time();
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setCursor(Qt::ClosedHandCursor);
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}
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else
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QGraphicsView::mousePressEvent(e);
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}
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void TimeLineWidget::mouseMoveEvent(QMouseEvent* e)
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{
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if(d_ptr->m_bMousePress)
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{
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int offsetX = e->pos().x() - d_ptr->m_ptMousePress.x();
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qint64 offsetValue = d_ptr->m_timeLineItem->getOffsetTimeValue(offsetX);
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offsetValue = qAbs(offsetValue);
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if(offsetX < 0)
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offsetValue = -offsetValue;
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QDateTime dateTime = d_ptr->m_timeMousePress.addMSecs(-offsetValue);
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d_ptr->m_timeLineItem->setTime(dateTime);
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d_ptr->m_ptMousePress = e->pos();
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d_ptr->m_timeMousePress = d_ptr->m_timeLineItem->time();
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emit viewHistoricalData(dateTime);
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}
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else
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QGraphicsView::mouseMoveEvent(e);
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}
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void TimeLineWidget::mouseReleaseEvent(QMouseEvent* e)
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{
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if (Qt::LeftButton == e->button())
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{
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d_ptr->m_bMousePress = false;
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setCursor(Qt::ArrowCursor);
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}
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else
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QGraphicsView::mousePressEvent(e);
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}
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void TimeLineWidget::wheelEvent(QWheelEvent* e)
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{
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if (e->angleDelta().y() > 0)
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d_ptr->m_timeLineItem->zoomIn();
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else
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d_ptr->m_timeLineItem->zoomOut();
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emit timeScaleUnitChanged(d_ptr->m_timeLineItem->timeUnit());
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}
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void TimeLineWidget::updateAll()
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{
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d_ptr->m_pScene->update();
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}
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void TimeLineWidget::setBackground(QColor color)
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{
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d_ptr->m_background_color = color;
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setBackgroundBrush(QBrush(color, Qt::SolidPattern));
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}
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void TimeLineWidget::setTimelineColor(QColor color)
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{
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d_ptr->m_timeLineItem->setLineColor(color);
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}
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void TimeLineWidget::setTimeScaleSize(int size)
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{
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d_ptr->m_timeLineItem->setScaleSize(size);
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}
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void TimeLineWidget::setTimeScaleUnit(TimeUnit unit)
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{
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d_ptr->m_timeLineItem->setTimeUnit(unit);
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}
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void TimeLineWidget::setDateTime(QDateTime dateTime)
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{
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d_ptr->m_timeLineItem->setTime(dateTime);
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}
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void TimeLineWidget::setDisplayState(DateTimeWidgetState state)
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{
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d_ptr->m_timeLineItem->setState(state);
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}
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void TimeLineWidget::syncTimeUnit()
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{
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emit timeScaleUnitChanged(d_ptr->m_timeLineItem->timeUnit());
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}
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