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50
51#include "tetrixboard.h"
52
53#include <QtWidgets>
54
55Q_DECLARE_METATYPE(QPainter*)
56
57TetrixBoard::TetrixBoard(QWidget *parent)
58 : QFrame(parent)
59{
60 timer = new QTimer(this);
61 qMetaTypeId<QPainter*>();
62}
63
64void TetrixBoard::setNextPieceLabel(QWidget *label)
65{
66 nextPieceLbl = qobject_cast<QLabel*>(object: label);
67}
68
69QLabel *TetrixBoard::nextPieceLabel() const
70{
71 return nextPieceLbl;
72}
73
74QObject *TetrixBoard::getTimer()
75{
76 return timer;
77}
78
79QSize TetrixBoard::minimumSizeHint() const
80{
81 return QSize(BoardWidth * 5 + frameWidth() * 2,
82 BoardHeight * 5 + frameWidth() * 2);
83}
84
85void TetrixBoard::paintEvent(QPaintEvent *event)
86{
87 QFrame::paintEvent(event);
88 QPainter painter(this);
89 painter.drawImage(x: 0, y: 0, image);
90}
91
92void TetrixBoard::keyPressEvent(QKeyEvent *event)
93{
94 emit keyPressed(key: event->key());
95}
96
97void TetrixBoard::showNextPiece(int width, int height)
98{
99 if (!nextPieceLabel())
100 return;
101
102 QPixmap pixmap(width * squareWidth(), height * squareHeight());
103 QPainter painter(&pixmap);
104 painter.fillRect(pixmap.rect(), nextPieceLabel()->palette().window());
105
106 emit paintNextPieceRequested(painter: &painter);
107
108 nextPieceLabel()->setPixmap(pixmap);
109}
110
111void TetrixBoard::drawPauseScreen(QPainter *painter)
112{
113 painter->drawText(r: contentsRect(), flags: Qt::AlignCenter, text: tr(s: "Pause"));
114}
115
116void TetrixBoard::drawSquare(QPainter *painter, int x, int y, int shape)
117{
118 static const QRgb colorTable[8] = {
119 0x000000, 0xCC6666, 0x66CC66, 0x6666CC,
120 0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00
121 };
122
123 x = x*squareWidth();
124 y = y*squareHeight();
125
126 QColor color = colorTable[shape];
127 painter->fillRect(x: x + 1, y: y + 1, w: squareWidth() - 2, h: squareHeight() - 2,
128 b: color);
129
130 painter->setPen(color.lighter());
131 painter->drawLine(x1: x, y1: y + squareHeight() - 1, x2: x, y2: y);
132 painter->drawLine(x1: x, y1: y, x2: x + squareWidth() - 1, y2: y);
133
134 painter->setPen(color.darker());
135 painter->drawLine(x1: x + 1, y1: y + squareHeight() - 1,
136 x2: x + squareWidth() - 1, y2: y + squareHeight() - 1);
137 painter->drawLine(x1: x + squareWidth() - 1, y1: y + squareHeight() - 1,
138 x2: x + squareWidth() - 1, y2: y + 1);
139}
140
141void TetrixBoard::update()
142{
143 QRect rect = contentsRect();
144 if (image.size() != rect.size())
145 image = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);
146 image.fill(pixel: qRgba(r: 0,g: 0,b: 0,a: 0));
147 QPainter painter;
148 painter.begin(&image);
149 int boardTop = rect.bottom() - BoardHeight*squareHeight();
150 painter.translate(dx: rect.left(), dy: boardTop);
151 emit paintRequested(painter: &painter);
152 QFrame::update();
153}
154

source code of qtscript/examples/script/qstetrix/tetrixboard.cpp