KShare/colorpicker/colorpickerscene.cpp

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2017-05-16 15:52:15 +02:00
#include "colorpickerscene.hpp"
#include <QApplication>
#include <QClipboard>
#include <QGraphicsEllipseItem>
#include <QGraphicsPixmapItem>
#include <QGraphicsTextItem>
#include <QTimer>
ColorPickerScene::ColorPickerScene(QPixmap *pixmap, QWidget *parentWidget)
: QGraphicsScene(), QGraphicsView(this, parentWidget) {
setFrameShape(QFrame::NoFrame); // Time taken to solve: A george99g and 38 minutes.
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setWindowFlags(Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform | QPainter::HighQualityAntialiasing);
setCursor(QCursor(Qt::CrossCursor));
setMouseTracking(true);
pItem = addPixmap(*pixmap);
pItem->setZValue(-2);
ellipse = addEllipse(QRectF(QCursor::pos(), QSize(20, 20)), QPen(Qt::cyan), Qt::NoBrush);
QFont font("Monospace");
font.setStyleHint(QFont::Monospace);
text = addText("#hiyouu", font);
textBackground = addRect(text->boundingRect(), Qt::NoPen, QBrush(Qt::black));
text->setPos(QCursor::pos() + QPoint(25, 0));
textBackground->setPos(text->pos());
textBackground->setZValue(-1);
color = pItem->pixmap().toImage().pixelColor(QCursor::pos());
text->setPlainText(color.name());
ellipse->setBrush(color);
}
void ColorPickerScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
color = pItem->pixmap().toImage().pixelColor(event->scenePos().toPoint());
text->setPlainText(color.name());
ellipse->setBrush(color);
qreal bottom = rect().bottom(); // max y
qreal right = rect().right(); // max x
qreal width = text->boundingRect().width();
qreal height = text->boundingRect().height();
QPointF origPoint = event->scenePos() + QPoint(25, 0);
QPointF scopePoint = event->scenePos();
QPointF resPoint = origPoint;
if (origPoint.x() + width > right) {
scopePoint -= QPoint(20, 0);
resPoint -= QPoint(50 + width, 0);
}
if (origPoint.y() + height > bottom) {
scopePoint -= QPoint(0, 20);
resPoint -= QPoint(0, height);
}
ellipse->setRect(QRectF(scopePoint, QSize(20, 20)));
text->setPos(resPoint);
textBackground->setPos(text->pos());
// How does this work? I have no clue....
// I mean.. It kinda makes sense when you look through it carefully
// But it's still a mess.
2017-05-16 15:52:15 +02:00
}
void ColorPickerScene::keyPressEvent(QKeyEvent *event) {
if (event->key() == Qt::Key_Return) QApplication::clipboard()->setText(color.name());
if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Escape) close();
}
void ColorPickerScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *) {
QApplication::clipboard()->setText(color.name());
close();
}