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50
51#include "chip.h"
52#include "mainwindow.h"
53#include "view.h"
54
55#include <QHBoxLayout>
56#include <QSplitter>
57
58MainWindow::MainWindow(QWidget *parent)
59 : QWidget(parent), scene(new QGraphicsScene(this))
60 , h1Splitter(new QSplitter(this)), h2Splitter(new QSplitter(this))
61{
62 populateScene();
63
64 QSplitter *vSplitter = new QSplitter;
65 vSplitter->setOrientation(Qt::Vertical);
66 vSplitter->addWidget(widget: h1Splitter);
67 vSplitter->addWidget(widget: h2Splitter);
68
69 View *view = new View("Top left view");
70 view->view()->setScene(scene);
71 h1Splitter->addWidget(widget: view);
72
73 view = new View("Top right view");
74 view->view()->setScene(scene);
75 h1Splitter->addWidget(widget: view);
76
77 view = new View("Bottom left view");
78 view->view()->setScene(scene);
79 h2Splitter->addWidget(widget: view);
80
81 view = new View("Bottom right view");
82 view->view()->setScene(scene);
83 h2Splitter->addWidget(widget: view);
84
85 QHBoxLayout *layout = new QHBoxLayout;
86 layout->addWidget(vSplitter);
87 setLayout(layout);
88
89 setWindowTitle(tr(s: "Chip Example"));
90}
91
92void MainWindow::populateScene()
93{
94 QImage image(":/qt4logo.png");
95
96 // Populate scene
97 int xx = 0;
98 int nitems = 0;
99 for (int i = -11000; i < 11000; i += 110) {
100 ++xx;
101 int yy = 0;
102 for (int j = -7000; j < 7000; j += 70) {
103 ++yy;
104 qreal x = (i + 11000) / 22000.0;
105 qreal y = (j + 7000) / 14000.0;
106
107 QColor color(image.pixel(x: int(image.width() * x), y: int(image.height() * y)));
108 QGraphicsItem *item = new Chip(color, xx, yy);
109 item->setPos(QPointF(i, j));
110 scene->addItem(item);
111
112 ++nitems;
113 }
114 }
115}
116

source code of qtbase/examples/widgets/graphicsview/chip/mainwindow.cpp