メインのウィンドウにQGraphicsViewを配置する方法

C++
1sample::sample(QWidget *parent)
2	: QMainWindow(parent)
3{
4	ui.setupUi(this);
5	makeStatusBar();
6	makeMenuandAction();
7	open();
8	select();
9	pen();
10	rsz();
11	flag_view_Toggle();
12	erase();
13	this->showFlg = true;
14	QTimer *timer = new QTimer(this);
15	connect(timer, SIGNAL(timeout()), this, SLOT(rsz));
16	timer->start();
17}
18
19void sample::makeStatusBar()
20{
21	statusBar()->showMessage(tr("this is status bar"));
22}
23
24void sample::makeMenuandAction()
25{
26noteEditor* track = new noteEditor();
27	track->show();
28}
29
30QGraphicsTextItemFixed::QGraphicsTextItemFixed(QGraphicsTextItem *parent)
31	: QGraphicsTextItem(parent)
32{
33	QString text;
34}
35
36QRectF QGraphicsTextItemFixed::boundingRect() const {
37	QRectF forcedSize = QRectF(0, 0, 10, 20);
38	return forcedSize;
39}
40
41void QGraphicsTextItemFixed::forceSize(int x, int y, int width)
42{
43	forcedSize->setCoords(0, 0, width, 20);
44	this->setPos(x, y);
45}
46
47noteEditor::noteEditor(QGraphicsView *parent)
48	:QGraphicsView(parent)
49{
50}
51
52void noteEditor::initUI()
53{
54	QGraphicsScene *scene = new QGraphicsScene();
55	this->setScene(scene);
56
57	QGraphicsRectItem *currentDraw = new QGraphicsRectItem();
58	this->mouseDown = false;
59	this->isDrag = false;
60	this->quantize = 4;
61	this->grid = 4;
62	this->select_tool = "Select";
63	drawMeasure(0, 50);
64}
65void noteEditor::drawMeasure(int measureOffNo = 1, int measureCnt = 1)
66{
67	newmeasureCnt += measureCnt;
68	QBrush brush = (QColor(90, 90, 90));
69	QPen pen = (QColor(45, 45, 45));
70	pen.setWidth(2);
71
72	QBrush brush2 = (QColor(60, 60, 60));
73	QPen pen2 = (QColor(75, 75, 75));
74	pen2.setWidth(2);
75
76	QBrush brush3 = (QColor(120, 120, 120));
77	QPen pen3 = (QColor(105, 105, 105));
78
79	int measureXDraw = measureCnt * 480;
80	int offset = measureOffNo * 480;
81
82	for (int i = 0; i <= 7; i++) {
83
84		this->scene()->addRect(offset, 0.0 + (240 * i), measureXDraw, 20, pen, brush);
85		this->scene()->addRect(offset, 20.0 + (240 * i), measureXDraw, 20, pen2, brush2);
86		this->scene()->addRect(offset, 40.0 + (240 * i), measureXDraw, 20, pen, brush);
87		this->scene()->addRect(offset, 60.0 + (240 * i), measureXDraw, 20, pen2, brush2);
88		this->scene()->addRect(offset, 80.0 + (240 * i), measureXDraw, 20, pen, brush);
89		this->scene()->addRect(offset, 100.0 + (240 * i), measureXDraw, 20, pen2, brush2);
90		this->scene()->addRect(offset, 120.0 + (240 * i), measureXDraw, 20, pen, brush);
91		this->scene()->addRect(offset, 140.0 + (240 * i), measureXDraw, 20, pen, brush);
92		this->scene()->addRect(offset, 160.0 + (240 * i), measureXDraw, 20, pen2, brush2);
93		this->scene()->addRect(offset, 180.0 + (240 * i), measureXDraw, 20, pen, brush);
94		this->scene()->addRect(offset, 200.0 + (240 * i), measureXDraw, 20, pen2, brush2);
95		this->scene()->addRect(offset, 220.0 + (240 * i), measureXDraw, 20, pen3, brush3);
96	}
97}