#include "cropscene.hpp" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include CropScene::CropScene(QObject *parent, QPixmap *pixmap) : QGraphicsScene(parent), drawingSelectionMaker([] { return nullptr; }), prevButtons(Qt::NoButton), _brush(Qt::SolidPattern), _font(settings::settings().value("font", QFont()).value()) { _pixmap = pixmap; pen().setColor(settings::settings().value("penColor", pen().color()).value()); pen().setCosmetic(settings::settings().value("penCosmetic", pen().isCosmetic()).toBool()); pen().setWidthF(settings::settings().value("penWidth", pen().widthF()).toFloat()); brush().setColor(settings::settings().value("brushColor", brush().color()).value()); brush().setStyle((Qt::BrushStyle)settings::settings().value("brushStyle", (int)Qt::SolidPattern).toInt()); addDrawingAction(menu, "Dot", [] { return new DotItem; }); addDrawingAction(menu, "Path", [] { return new PathItem; }); addDrawingAction(menu, "Blur", [] { return new BlurItem; }); addDrawingAction(menu, "Straight line", [] { return new LineItem; }); addDrawingAction(menu, "Text", [] { return new TextItem; }); addDrawingAction(menu, "Rectangle", [] { return new RectItem; }); addDrawingAction(menu, "Ellipse", [] { return new EllipseItem; }); addDrawingAction(menu, "Arrow", [] { return new ArrowItem; }); menu.addSeparator(); addDrawingAction(menu, "Eraser", [] { return new EraserItem; }); QAction *clear = menu.addAction("Clear all drawing"); connect(clear, &QAction::triggered, [&] { auto its = items(); for (auto i : its) { if (i != rect && i != polyItem && i->zValue() != -1) removeItem(i); } }); QAction *reset = menu.addAction("Reset pen selection"); connect(reset, &QAction::triggered, [&] { setDrawingSelection("None", [] { return nullptr; }); }); menu.addSeparator(); QAction *settings = new QAction; settings->setText("Settings"); menu.addSeparator(); display = menu.addAction(drawingName); display->setDisabled(true); connect(settings, &QAction::triggered, [&] { BrushPenSelection(this).exec(); }); menu.addAction(settings); magnifier = addPixmap(pixmap->copy(0, 0, 11, 11).scaled(110, 110)); magnifierBox = addRect(magnifier->boundingRect(), QPen(Qt::cyan)); magnifier->setZValue(1); magnifierBox->setZValue(1.1); magnifierBox->setParentItem(magnifier); magnifierHint = addText("ptr: (0, 0)\nsel: (0, 0, 0, 0)"); magnifierHint->setParentItem(magnifier); magnifierHint->setY(magnifier->boundingRect().height()); QColor c(Qt::cyan); c.setAlphaF(.25); magnifierHintBox = addRect(magnifierHint->boundingRect(), Qt::NoPen, c); magnifierHintBox->setParentItem(magnifierHint); magnifierHintBox->setZValue(1); magnifierHint->setZValue(1.1); initMagnifierGrid(); updateMag(QPointF(0, 0)); connect(menu.addAction("Set Font"), &QAction::triggered, this, &CropScene::fontAsk); QTimer::singleShot(0, [&] { QPolygonF poly; poly.append(sceneRect().topLeft()); poly.append(sceneRect().topRight()); poly.append(sceneRect().bottomRight()); poly.append(sceneRect().bottomLeft()); polyItem = new QGraphicsPolygonItem(poly); polyItem->setBrush(QBrush(QColor(0, 0, 0, 191))); polyItem->setPen(QPen(Qt::NoPen)); addItem(polyItem); }); } CropScene::~CropScene() { delete drawingSelection; } QPen &CropScene::pen() { return _pen; } QBrush &CropScene::brush() { return _brush; } QFont &CropScene::font() { return _font; } void CropScene::setDrawingSelection(QString name, std::function drawAction) { this->setFocus(); drawingSelectionMaker = drawAction; drawingSelection = drawAction(); drawingName = name; if (drawingSelection) if (!drawingSelection->init(this)) setDrawingSelection("None", [] { return nullptr; }); } void CropScene::fontAsk() { bool ok = false; QFont font = QFontDialog::getFont(&ok, this->font(), nullptr, "Font to use"); if (ok) _font = font; } void CropScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e) { updateMag(e->scenePos()); auto buttons = e->buttons(); if (e->modifiers() & Qt::ControlModifier && buttons == Qt::LeftButton) { QTransform stupidThing = views()[0]->transform(); auto item = itemAt(e->scenePos(), stupidThing); if (item && item != polyItem && item != rect && item->zValue() != -1) { QPointF delta = e->scenePos() - e->lastScenePos(); item->moveBy(delta.x(), delta.y()); } return; } if (buttons == Qt::LeftButton || (prevButtons == Qt::NoButton && prevButtons != buttons)) { if (drawingSelection) { drawingSelection->mouseDragEvent(e, this); } else { QPointF p = e->scenePos(); if (rect == nullptr) { rect = new QGraphicsRectItem(p.x(), p.y(), 1, 1); initPos = p; QPen pen(Qt::NoBrush, 1); pen.setColor(Qt::cyan); rect->setPen(pen); rect->setZValue(-0.1); addItem(rect); } else { if (prevButtons == Qt::NoButton) { initPos = p; rect->setRect(p.x(), p.y(), 1, 1); } else { rect->setRect(QRect(qMin(initPos.x(), p.x()), qMin(initPos.y(), p.y()), qAbs(initPos.x() - p.x()), qAbs(initPos.y() - p.y()))); } } QPolygonF poly; QPointF theMagicWikipediaPoint(rect->rect().right(), sceneRect().bottom()); poly << sceneRect().topLeft(); poly << sceneRect().topRight(); poly << sceneRect().bottomRight(); poly << theMagicWikipediaPoint; poly << rect->rect().bottomRight(); poly << rect->rect().topRight(); poly << rect->rect().topLeft(); poly << rect->rect().bottomLeft(); poly << rect->rect().bottomRight(); poly << theMagicWikipediaPoint; poly << sceneRect().bottomLeft(); poly << sceneRect().topLeft(); this->polyItem->setPolygon(poly); e->accept(); } } prevButtons = buttons; } void CropScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) { if (drawingSelection) { drawingSelection->mouseDragEndEvent(e, this); delete drawingSelection; drawingSelection = drawingSelectionMaker(); if (drawingSelection) if (!drawingSelection->init(this)) setDrawingSelection("None", [] { return nullptr; }); } else if (settings::settings().value("quickMode", false).toBool()) done(); prevButtons = Qt::NoButton; } void CropScene::mousePressEvent(QGraphicsSceneMouseEvent *e) { if (e->modifiers() & Qt::AltModifier) { QTransform stupidThing = views()[0]->transform(); auto item = itemAt(e->scenePos(), stupidThing); if (item && item != polyItem && item != rect && item->zValue() != -1) { removeItem(item); } } } void CropScene::wheelEvent(QGraphicsSceneWheelEvent *event) { int pixCnt = settings::settings().value("magnifierPixelCount", 11).toInt(); if (pixCnt % 2 == 0) pixCnt++; if (pixCnt > 20) return; if (event->delta() > 0 && pixCnt < 19) settings::settings().setValue("magnifierPixelCount", pixCnt += 2); else if (pixCnt > 1) settings::settings().setValue("magnifierPixelCount", pixCnt -= 2); for (auto item : gridRectsX) delete item; gridRectsX.clear(); for (auto item : gridRectsY) delete item; gridRectsY.clear(); initMagnifierGrid(); updateMag(event->scenePos()); } void CropScene::addDrawingAction(QMenu &menu, QString name, std::function item) { QAction *action = new QAction; action->setText(name); connect(action, &QAction::triggered, [this, item, name](bool) { setDrawingSelection(name, item); }); menu.addAction(action); } void CropScene::contextMenuEvent(QGraphicsSceneContextMenuEvent *e) { display->setText(drawingName); menu.exec(e->screenPos()); e->accept(); } void CropScene::keyReleaseEvent(QKeyEvent *event) { if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) done(); // Segfault } void CropScene::updateMag(QPointF scenePos) { QString rectStr("(0, 0, 0, 0)"); if (rect) { rectStr = "(%0, %1, %2, %3)"; rectStr = rectStr.arg(rect->rect().x()).arg(rect->rect().y()).arg(rect->rect().width()).arg(rect->rect().height()); } magnifierHint->setPlainText(QString("ptr: (%0, %1)\nsel: %2").arg(scenePos.x()).arg(scenePos.y()).arg(rectStr)); magnifierHintBox->setRect(magnifierHint->boundingRect()); int pixCnt = settings::settings().value("magnifierPixelCount", 11).toInt(); if (pixCnt % 2 == 0) pixCnt++; QPointF magnifierTopLeft = scenePos - QPointF(pixCnt / 2., pixCnt / 2.); QPointF magnifierPos = scenePos + QPointF(5, 5); magnifier->setPos(magnifierPos); magnifier->setPixmap(_pixmap->copy(magnifierTopLeft.x(), magnifierTopLeft.y(), pixCnt, pixCnt).scaled(110, 110)); QPointF bottomRight = magnifierHintBox->sceneBoundingRect().bottomRight(); if (magnifier->sceneBoundingRect().bottom() > bottomRight.y()) bottomRight.setY(magnifier->sceneBoundingRect().bottom()); if (magnifier->sceneBoundingRect().right() > bottomRight.x()) bottomRight.setX(magnifier->sceneBoundingRect().right()); if (bottomRight.x() > sceneRect().right()) magnifierPos -= QPointF(qMax(130., magnifierHintBox->boundingRect().width()), 0); if (bottomRight.y() > sceneRect().bottom()) magnifierPos -= QPointF(0, 130 + magnifierHintBox->boundingRect().height()); magnifier->setPos(magnifierPos); } void CropScene::initMagnifierGrid() { QColor c(Qt::cyan); c.setAlphaF(.25); int pixCnt = settings::settings().value("magnifierPixelCount", 11).toInt(); if (pixCnt % 2 == 0) pixCnt++; for (int i = 0; i < pixCnt; i++) { auto gridRectX = addRect(0, i * 110. / pixCnt, 110, 110. / pixCnt, QPen(Qt::black, 0.5)); auto gridRectY = addRect(i * 110. / pixCnt, 0, 110. / pixCnt, 110, QPen(Qt::black, 0.5)); gridRectX->setParentItem(magnifierBox); gridRectY->setParentItem(magnifierBox); gridRectX->setZValue(1); gridRectY->setZValue(1); gridRectsX.append(gridRectX); gridRectsY.append(gridRectY); if (i == (pixCnt / 2)) { gridRectX->setBrush(c); gridRectY->setBrush(c); } } } void CropScene::done() { if (rect) { rect->setPen(QPen(Qt::NoPen)); magnifier->setVisible(false); magnifierBox->setVisible(false); magnifierHint->setVisible(false); magnifierHintBox->setVisible(false); emit closedWithRect(rect->rect().toRect()); } }