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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
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6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
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8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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28 | ****************************************************************************/ |
29 | |
30 | #include "surfacegraph.h" |
31 | |
32 | #include <QtWidgets/QApplication> |
33 | #include <QtWidgets/QWidget> |
34 | #include <QtWidgets/QHBoxLayout> |
35 | #include <QtWidgets/QVBoxLayout> |
36 | #include <QtWidgets/QGroupBox> |
37 | #include <QtWidgets/QCheckBox> |
38 | #include <QtWidgets/QLabel> |
39 | #include <QtWidgets/QMessageBox> |
40 | #include <QtGui/QScreen> |
41 | #include <QtGui/QPainter> |
42 | |
43 | int main(int argc, char **argv) |
44 | { |
45 | QApplication app(argc, argv); |
46 | Q3DSurface *graph = new Q3DSurface(); |
47 | QWidget *container = QWidget::createWindowContainer(window: graph); |
48 | |
49 | if (!graph->hasContext()) { |
50 | QMessageBox msgBox; |
51 | msgBox.setText("Couldn't initialize the OpenGL context." ); |
52 | msgBox.exec(); |
53 | return -1; |
54 | } |
55 | |
56 | QSize screenSize = graph->screen()->size(); |
57 | container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 1.6)); |
58 | container->setMaximumSize(screenSize); |
59 | container->setSizePolicy(hor: QSizePolicy::Expanding, ver: QSizePolicy::Expanding); |
60 | container->setFocusPolicy(Qt::StrongFocus); |
61 | |
62 | QWidget *widget = new QWidget; |
63 | QHBoxLayout *hLayout = new QHBoxLayout(widget); |
64 | QVBoxLayout *vLayout = new QVBoxLayout(); |
65 | hLayout->addWidget(container, stretch: 1); |
66 | hLayout->addLayout(layout: vLayout); |
67 | vLayout->setAlignment(Qt::AlignTop); |
68 | |
69 | widget->setWindowTitle(QStringLiteral("Textured surface example" )); |
70 | |
71 | QCheckBox *enableTexture = new QCheckBox(widget); |
72 | enableTexture->setText(QStringLiteral("Surface texture" )); |
73 | |
74 | int height = 400; |
75 | int width = 100; |
76 | int border = 10; |
77 | QLinearGradient gr(0, 0, 1, height - 2 * border); |
78 | gr.setColorAt(pos: 1.0f, color: Qt::black); |
79 | gr.setColorAt(pos: 0.8f, color: Qt::darkGreen); |
80 | gr.setColorAt(pos: 0.6f, color: Qt::green); |
81 | gr.setColorAt(pos: 0.4f, color: Qt::yellow); |
82 | gr.setColorAt(pos: 0.2f, color: Qt::red); |
83 | gr.setColorAt(pos: 0.0f, color: Qt::darkRed); |
84 | |
85 | QPixmap pm(width, height); |
86 | pm.fill(fillColor: Qt::transparent); |
87 | QPainter pmp(&pm); |
88 | pmp.setBrush(QBrush(gr)); |
89 | pmp.setPen(Qt::NoPen); |
90 | pmp.drawRect(x: border, y: border, w: 35, h: height - 2 * border); |
91 | pmp.setPen(Qt::black); |
92 | int step = (height - 2 * border) / 5; |
93 | for (int i = 0; i < 6; i++) { |
94 | int yPos = i * step + border; |
95 | pmp.drawLine(x1: border, y1: yPos, x2: 55, y2: yPos); |
96 | pmp.drawText(x: 60, y: yPos + 2, s: QString("%1 m" ).arg(a: 550 - (i * 110))); |
97 | } |
98 | |
99 | QLabel *label = new QLabel(widget); |
100 | label->setPixmap(pm); |
101 | |
102 | QGroupBox *heightMapGroupBox = new QGroupBox(QStringLiteral("Highlight color map" )); |
103 | QVBoxLayout *colorMapVBox = new QVBoxLayout; |
104 | colorMapVBox->addWidget(label); |
105 | heightMapGroupBox->setLayout(colorMapVBox); |
106 | |
107 | vLayout->addWidget(enableTexture); |
108 | vLayout->addWidget(heightMapGroupBox); |
109 | |
110 | widget->show(); |
111 | |
112 | SurfaceGraph *modifier = new SurfaceGraph(graph); |
113 | |
114 | QObject::connect(sender: enableTexture, signal: &QCheckBox::stateChanged, |
115 | receiver: modifier, slot: &SurfaceGraph::toggleSurfaceTexture); |
116 | |
117 | enableTexture->setChecked(true); |
118 | |
119 | return app.exec(); |
120 | } |
121 | |