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Magnifier!

This commit is contained in:
ArsenArsen 2017-06-27 00:27:04 +02:00
parent b8880b1c03
commit 614086c262
2 changed files with 76 additions and 39 deletions
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112
cropeditor/cropscene.cpp
View File

@ -22,6 +22,7 @@
CropScene::CropScene(QObject *parent, QPixmap *pixmap)
: QGraphicsScene(parent), drawingSelectionMaker([] { return nullptr; }), prevButtons(Qt::NoButton),
_font(settings::settings().value("font", QFont()).value<QFont>()) {
_pixmap = pixmap;
pen().setColor(settings::settings().value("penColor", pen().color()).value<QColor>());
pen().setCosmetic(settings::settings().value("penCosmetic", pen().isCosmetic()).toBool());
pen().setWidthF(settings::settings().value("penWidth", pen().widthF()).toFloat());
@ -71,24 +72,11 @@ CropScene::CropScene(QObject *parent, QPixmap *pixmap)
magnifierHintBox->setParentItem(magnifierHint);
magnifierHintBox->setZValue(1);
magnifierHint->setZValue(1.1);
for (int i = 0; i < 11; i++) {
auto gridRectX = addRect(0, i * 10, 110, 10, QPen(Qt::black));
auto gridRectY = addRect(i * 10, 0, 10, 110, QPen(Qt::black));
gridRectX->setParentItem(magnifierBox);
gridRectY->setParentItem(magnifierBox);
gridRectX->setZValue(1);
gridRectY->setZValue(1);
gridRectsX.append(gridRectX);
gridRectsY.append(gridRectY);
if (i == 5) {
gridRectX->setBrush(c);
gridRectY->setBrush(c);
}
}
initMagnifierGrid();
updateMag(QPointF(0, 0));
connect(menu.addAction("Set Font"), &QAction::triggered, this, &CropScene::fontAsk);
_pixmap = pixmap;
QTimer::singleShot(0, [&] {
QPolygonF poly;
poly.append(sceneRect().topLeft());
@ -134,30 +122,7 @@ void CropScene::fontAsk() {
}
void CropScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
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(e->scenePos().x()).arg(e->scenePos().y()).arg(rectStr));
magnifierHintBox->setRect(magnifierHint->boundingRect());
QPointF magnifierTopLeft = e->scenePos() - QPointF(5.5, 5.5);
QPointF magnifierPos = e->scenePos() + QPointF(11, 11);
magnifier->setPos(magnifierPos);
magnifier->setPixmap(_pixmap->copy(magnifierTopLeft.x(), magnifierTopLeft.y(), 11, 11).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);
updateMag(e->scenePos());
auto buttons = e->buttons();
if (e->modifiers() & Qt::ControlModifier && buttons == Qt::LeftButton) {
@ -224,6 +189,24 @@ void CropScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
prevButtons = Qt::NoButton;
}
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<DrawItem *()> item) {
QAction *action = new QAction;
action->setText(name);
@ -241,6 +224,57 @@ 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());
QPointF magnifierTopLeft = scenePos - QPointF(5.5, 5.5);
QPointF magnifierPos = scenePos + QPointF(11, 11);
int pixCnt = settings::settings().value("magnifierPixelCount", 11).toInt();
if (pixCnt % 2 == 0) pixCnt++;
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));
auto gridRectY = addRect(i * 110. / pixCnt, 0, 110. / pixCnt, 110, QPen(Qt::black));
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));

3
cropeditor/cropscene.hpp
View File

@ -41,11 +41,14 @@ signals:
protected:
void mouseMoveEvent(QGraphicsSceneMouseEvent *e) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *e) override;
void wheelEvent(QGraphicsSceneWheelEvent *event) override; // WHEEEEEEL
void contextMenuEvent(QGraphicsSceneContextMenuEvent *e) override;
void keyReleaseEvent(QKeyEvent *e) override;
private:
void updateMag(QPointF scenePos);
void initMagnifierGrid();
void addDrawingAction(QMenu &menu, QString name, std::function<DrawItem *()> item);
void done();
std::function<DrawItem *()> drawingSelectionMaker;