82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#include "puzzlewidget.h"
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#include <QPainter>
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#include <QPainterPath>
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#include <QTime>
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#include <QTimer>
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const int squarewidth = 46;
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const int squareradius = 20;
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PuzzleWidget::PuzzleWidget(QWidget *parent)
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: QWidget(parent)
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{
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m_value = 0;
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m_offsetPoint = QPoint(0, 0);
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srand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
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}
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PuzzleWidget::~PuzzleWidget()
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{
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}
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void PuzzleWidget::setPixmap(const QString& pixmap)
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{
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m_pixmap = pixmap;
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QTimer::singleShot(10, this, SLOT(onUpdatePixmap()));
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}
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void PuzzleWidget::onUpdatePixmap()
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{
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m_offsetPoint.rx() = qBound(0, rand() % this->width() + squarewidth + squareradius, this->width() - squarewidth - squareradius);
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m_offsetPoint.ry() = qBound(0, rand() % this->height() + squarewidth + squareradius, this->height() - squarewidth - squareradius);
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update();
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}
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void PuzzleWidget::setValue(int value)
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{
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m_value = qBound(0, value, this->width() - squarewidth - squareradius + m_offsetPoint.x());
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update();
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}
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void PuzzleWidget::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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painter.setRenderHints(QPainter::Antialiasing);
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QPainterPath clippath;
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clippath.addRoundedRect(this->rect(), 4, 4);
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painter.setClipPath(clippath);
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const QPixmap& pixmap = QPixmap(m_pixmap).scaled(this->width(), this->height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
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painter.drawPixmap(0, 0, this->width(), this->height(), pixmap);
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QPainterPath cutoutpath;
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cutoutpath.setFillRule(Qt::WindingFill);
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QRect rect(m_offsetPoint, QSize(squarewidth, squarewidth));
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cutoutpath.addRoundedRect(rect, 2, 2);
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cutoutpath.addEllipse(rect.center().x() - squareradius / 2, rect.top() - squareradius + 6, squareradius, squareradius);
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QPainterPath subellipseparh;
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subellipseparh.addEllipse(rect.right() - squareradius + 6, rect.center().y() - squareradius / 2, squareradius, squareradius);
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cutoutpath -= subellipseparh;
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painter.setPen(QPen(QColor(80, 80, 80), 1));
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painter.setBrush(QColor(100, 100, 100, 220));
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painter.drawPath(cutoutpath);
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QPixmap puzzlePixmap(this->size());
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puzzlePixmap.fill(Qt::transparent);
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QPainter puzzlePainter(&puzzlePixmap);
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puzzlePainter.setRenderHints(QPainter::Antialiasing);
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puzzlePainter.setClipPath(cutoutpath);
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puzzlePainter.setPen(QPen(QColor(80, 80, 80), 2));
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puzzlePainter.setBrush(QColor(200, 200, 200, 100));
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puzzlePainter.drawPixmap(0, 0, this->width(), this->height(), pixmap);
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puzzlePainter.drawPath(cutoutpath);
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painter.drawPixmap(-m_offsetPoint.x() + m_value, 0, this->width(), this->height(), puzzlePixmap);
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}
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bool PuzzleWidget::isOverlap()
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{
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return qAbs(-m_offsetPoint.x() + m_value) < 5;
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}
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