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widget.cpp
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widget.cpp
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#include "widget.h"
#include "ui_widget.h"
#include <QApplication>
#include "interactiveview.h"
#include "customscene.h"
#include <QDebug>
#include <QOpenGLWidget>
#include <QGLWidget>
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
initView();
}
Widget::~Widget()
{
delete ui;
}
void Widget::initView()
{
// 创建 item
CustomItem *pItem = new CustomItem();
pItem->setRect(20, 20, 60, 60);
// 将 item 添加至场景中
CustomScene *scene = new CustomScene();
scene->setSceneRect(0, 0, 400, 300);
// scene.addItem(pItem);
// 为视图设置场景
// QGraphicsView view;
mView = new InteractiveView();
mView->setScene(scene);
mView->populateScene(scene);
// mView.show();
#ifndef QT_NO_OPENGL
// mView->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
// mView->setViewport(new QOpenGLWidget());
#endif
// mView->setViewport(new QWidget);
ui->gridLayout->addWidget(mView);
// QPushButton* btn = new QPushButton("打开",this);
// btn->move(mView->pos());
}
void Widget::on_lineEdit_returnPressed()
{
}
void Widget::on_pushButton_2_clicked()
{
mView->scrollY();
}
void Widget::on_pushButton_clicked()
{
qDebug() << "sceneRect:" << mView->mapToScene(mView->rect());
}
void Widget::on_pushButton_3_clicked()
{
mView->testCenter();
}
void Widget::on_pushButton_4_clicked()
{
mView->selectItems();
}
void Widget::on_pushButton_5_clicked()
{
}
void Widget::on_lineEdit_2_returnPressed()
{
mView->changeXScale(ui->lineEdit_2->text().toDouble());
}
void Widget::on_lineEdit_2_cursorPositionChanged(int arg1, int arg2)
{
}
void Widget::paintEvent(QPaintEvent *event)
{
//绘制背景表格
QPainter painter;
painter.begin(this);
painter.fillRect(mView->rect(),QBrush(QColor("#2F3843")));
painter.setPen(QPen(QColor(255,255,255,50)));
qreal heightSpace = height()/6;
qreal widthSpace = width()/6;
for (int i=0;i<5;i++) {
painter.drawLine(QPoint(0,(i+1)*heightSpace),QPoint(width(),(i+1)*heightSpace));
painter.drawLine(QPoint((i+1)*widthSpace,0),QPoint((i+1)*widthSpace,height()));
}
painter.end();
// qDebug() << "widget painter event";
}