Add cursor slowdown

WOW https://i.arsenarsen.com/khk0kdd2bh.png

cropeditor/cropscene.cpp

@@ -21,7 +21,7 @@
 #include <settings.hpp>
 
 CropScene::CropScene(QObject *parent, QPixmap pixmap)
-: QGraphicsScene(parent), drawingSelectionMaker([] { return nullptr; }), prevButtons(Qt::NoButton),
+: QGraphicsScene(parent), cursorPos(0, 0), drawingSelectionMaker([] { return nullptr; }), prevButtons(Qt::NoButton),
   _brush(Qt::SolidPattern), _font(settings::settings().value("font", QFont()).value<QFont>()) {
     _pixmap = pixmap;
     pen().setColor(settings::settings().value("penColor", pen().color()).value<QColor>());
@@ -64,13 +64,23 @@ CropScene::CropScene(QObject *parent, QPixmap pixmap)
         show();
     });
     menu.addAction(settings);
-
-    magnifier = addPixmap(pixmap.copy(0, 0, 11, 11).scaled(110, 110));
+    QPolygonF cursorPoly;
+    cursorPoly << QPoint(-10, 0) //
+               << QPoint(10, 0)  //
+               << QPoint(0, 0)   //
+               << QPoint(0, 10)  //
+               << QPoint(0, -10) //
+               << QPoint(0, 0);
+
+    cursorItem = addPolygon(cursorPoly, QPen(Qt::white));
+    cursorItem->setZValue(3);
+
+    magnifier = addPixmap(QPixmap(110, 110));
     magnifierBox = addRect(magnifier->boundingRect(), QPen(Qt::cyan));
-    magnifier->setZValue(1);
+    magnifier->setZValue(3);
     magnifierBox->setZValue(1.1);
     magnifierBox->setParentItem(magnifier);
-    magnifierHint = addText("ptr: (0, 0)\nsel: (0, 0, 0, 0)");
+    magnifierHint = addText("ptr: (0, 0)\nsel: (-1, -1, 0, 0)");
     magnifierHint->setParentItem(magnifier);
     magnifierHint->setY(magnifier->boundingRect().height());
     QColor c(Qt::cyan);
@@ -80,20 +90,25 @@ CropScene::CropScene(QObject *parent, QPixmap pixmap)
     magnifierHintBox->setZValue(1);
     magnifierHint->setZValue(1.1);
     initMagnifierGrid();
-    updateMag(QPointF(0, 0));
+    updateMag();
 
     connect(menu.addAction("Set Font"), &QAction::triggered, this, &CropScene::fontAsk);
 
+    QPolygonF poly;
+    QRect prect = pixmap.rect();
+    poly.append(prect.topLeft());
+    poly.append(prect.topRight());
+    poly.append(prect.bottomRight());
+    poly.append(prect.bottomLeft());
+    polyItem = new QGraphicsPolygonItem(poly);
+    polyItem->setBrush(QBrush(QColor(0, 0, 0, 191)));
+    polyItem->setPen(QPen(Qt::NoPen));
+    addItem(polyItem);
     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);
+        auto pf = views()[0]->mapFromGlobal(QCursor::pos());
+        cursorPos = QPoint(pf.x(), pf.y());
+        cursorItem->setPos(cursorPos);
+        updateMag();
     });
 }
 
@@ -147,14 +162,20 @@ void CropScene::fontAsk() {
 }
 
 void CropScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
-    updateMag(e->scenePos());
+    QPointF delta = e->scenePos() - cursorPos;
+    if (e->modifiers() & Qt::ShiftModifier) {
+        cursorPos += delta / 2;
+        QCursor::setPos(views()[0]->mapToGlobal(cursorPos.toPoint()));
+    } else
+        cursorPos = e->scenePos();
+    cursorItem->setPos(cursorPos);
+    updateMag();
 
     auto buttons = e->buttons();
     if (e->modifiers() & Qt::ControlModifier && buttons == Qt::LeftButton) {
         QTransform stupidThing = views()[0]->transform();
-        auto item = itemAt(e->scenePos(), stupidThing);
+        auto item = itemAt(cursorPos, stupidThing);
         if (item && item != polyItem && item != rect && item->zValue() != -1) {
-            QPointF delta = e->scenePos() - e->lastScenePos();
             item->moveBy(delta.x(), delta.y());
         }
         return;
@@ -163,14 +184,14 @@ void CropScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
         if (drawingSelection) {
             drawingSelection->mouseDragEvent(e, this);
         } else {
-            QPointF p = e->scenePos();
+            QPointF p = cursorPos;
             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);
+                rect->setZValue(1);
                 addItem(rect);
             } else {
                 if (prevButtons == Qt::NoButton) {
@@ -218,7 +239,7 @@ void CropScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
 void CropScene::mousePressEvent(QGraphicsSceneMouseEvent *e) {
     if (e->modifiers() & Qt::AltModifier) {
         QTransform stupidThing = views()[0]->transform();
-        auto item = itemAt(e->scenePos(), stupidThing);
+        auto item = itemAt(cursorPos, stupidThing);
         if (item && item != polyItem && item != rect && item->zValue() != -1) {
             removeItem(item);
         }
@@ -240,7 +261,7 @@ void CropScene::wheelEvent(QGraphicsSceneWheelEvent *event) {
     gridRectsY.clear();
 
     initMagnifierGrid();
-    updateMag(event->scenePos());
+    updateMag();
 }
 
 void CropScene::addDrawingAction(QMenu &menu, QString name, std::function<DrawItem *()> item) {
@@ -250,30 +271,32 @@ void CropScene::addDrawingAction(QMenu &menu, QString name, std::function<DrawIt
     menu.addAction(action);
 }
 
+QPoint contextOffset(5, 5);
+
 void CropScene::contextMenuEvent(QGraphicsSceneContextMenuEvent *e) {
     display->setText(drawingName);
-    menu.exec(e->screenPos());
+    menu.exec((cursorPos + contextOffset).toPoint());
     e->accept();
 }
 
 void CropScene::keyReleaseEvent(QKeyEvent *event) {
-    if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter || event->key() == Qt::Key_Escape)
+    if (((event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) && !drawingSelection) || event->key() == Qt::Key_Escape)
         done(event->key() != Qt::Key_Escape);
 }
 
-void CropScene::updateMag(QPointF scenePos) {
-    QString rectStr("(0, 0, 0, 0)");
+void CropScene::updateMag() {
+    QString rectStr("(-1, -1, 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));
+    magnifierHint->setPlainText(QString("ptr: (%0, %1)\nsel: %2").arg(qRound(cursorPos.x())).arg(qRound(cursorPos.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);
+    QPointF magnifierTopLeft = cursorPos - QPointF(pixCnt / 2., pixCnt / 2.);
+    QPointF magnifierPos = cursorPos + QPointF(5, 5);
 
     magnifier->setPos(magnifierPos);
     magnifier->setPixmap(_pixmap.copy(magnifierTopLeft.x(), magnifierTopLeft.y(), pixCnt, pixCnt).scaled(110, 110));
@@ -316,6 +339,7 @@ void CropScene::done(bool notEsc) {
     if (notEsc && rect) {
         rect->setPen(QPen(Qt::NoPen));
         magnifier->setVisible(false);
+        cursorItem->setVisible(false);
         magnifierBox->setVisible(false);
         magnifierHint->setVisible(false);
         magnifierHintBox->setVisible(false);

cropeditor/cropscene.hpp

@@ -34,6 +34,9 @@ public:
     void hide();
     void show();
     void setVisible(bool visible);
+    QPointF cursorPosition() {
+        return cursorPos;
+    }
 
 public slots:
     void fontAsk();
@@ -47,15 +50,15 @@ protected:
     void mousePressEvent(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 updateMag();
     void initMagnifierGrid();
     void addDrawingAction(QMenu &menu, QString name, std::function<DrawItem *()> item);
     void done(bool notEsc);
     bool fullscreen;
+    QPointF cursorPos;
     std::function<DrawItem *()> drawingSelectionMaker;
     QFlags<Qt::MouseButton> prevButtons;
     QPixmap _pixmap;
@@ -75,6 +78,7 @@ private:
     QAction *display;
     QList<QGraphicsRectItem *> gridRectsX;
     QList<QGraphicsRectItem *> gridRectsY;
+    QGraphicsPolygonItem *cursorItem = nullptr;
 };
 
 #endif // CROPSCENE_HPP

cropeditor/cropview.cpp

@@ -9,4 +9,5 @@ CropView::CropView(QGraphicsScene *scene) : QGraphicsView(scene) {
     setCursor(QCursor(Qt::CrossCursor));
     setMouseTracking(true);
     setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
+    setCursor(Qt::BlankCursor);
 }

cropeditor/drawing/arrowitem.cpp

@@ -2,9 +2,9 @@
 #include <QtMath>
 #include <settings.hpp>
 
-void ArrowItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void ArrowItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (init.isNull()) {
-        init = e->scenePos();
+        init = scene->cursorPosition();
         line = scene->addLine(QLineF(init, init), scene->pen());
         QPainterPath poly;
         qreal w = settings::settings().value("arrow/width", 20).toDouble() / 2;
@@ -14,8 +14,9 @@ void ArrowItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
         poly.lineTo(QPoint(w, h));
         head = scene->addPath(poly, scene->pen(), scene->brush());
     } else {
-        line->setLine(QLineF(init, e->scenePos()));
-        head->setRotation(270 + qRadiansToDegrees(qAtan2((init.y() - e->scenePos().y()), (init.x() - e->scenePos().x()))));
+        line->setLine(QLineF(init, scene->cursorPosition()));
+        head->setRotation(
+        270 + qRadiansToDegrees(qAtan2((init.y() - scene->cursorPosition().y()), (init.x() - scene->cursorPosition().x()))));
     }
-    head->setPos(e->scenePos());
+    head->setPos(scene->cursorPosition());
 }

cropeditor/drawing/arrowitem.hpp

@@ -11,7 +11,7 @@ public:
     QString name() override {
         return "Arrow";
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override {
     }
 

cropeditor/drawing/bluritem.cpp

@@ -13,16 +13,16 @@ bool BlurItem::init(CropScene *) {
     return true;
 }
 
-void BlurItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void BlurItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (pos.isNull()) {
-        pos = e->scenePos();
-        rect = scene->addRect(QRect(e->scenePos().toPoint(), QSize(1, 1)), QPen(Qt::cyan), Qt::NoBrush);
+        pos = scene->cursorPosition();
+        rect = scene->addRect(QRect(scene->cursorPosition().toPoint(), QSize(1, 1)), QPen(Qt::cyan), Qt::NoBrush);
         pixmap = scene->addPixmap(scene->pixmap().copy(rect->rect().toRect()));
-        pixmap->setPos(e->scenePos());
+        pixmap->setPos(scene->cursorPosition());
         pixmap->setZValue(rect->zValue() - 0.1);
         pixmap->setGraphicsEffect(effect);
     } else {
-        QPointF p = e->scenePos();
+        QPointF p = scene->cursorPosition();
         rect->setRect(QRect(qMin(pos.x(), p.x()), qMin(pos.y(), p.y()), qAbs(pos.x() - p.x()), qAbs(pos.y() - p.y())));
         pixmap->setPixmap(scene->pixmap().copy(rect->rect().toRect()));
         pixmap->setPos(rect->rect().topLeft());

cropeditor/drawing/bluritem.hpp

@@ -14,7 +14,7 @@ public:
     }
 
     bool init(CropScene *) override;
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override;
 
 private:

cropeditor/drawing/dotitem.cpp

@@ -7,7 +7,7 @@ DotItem::~DotItem() {
 }
 
 void DotItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
-    scene->addEllipse(e->pos().x() - 1.5, e->pos().y() - 1.5, 3, 3, scene->pen(), scene->brush())->setPos(e->scenePos());
+    scene->addEllipse(e->pos().x() - 1.5, e->pos().y() - 1.5, 3, 3, scene->pen(), scene->brush())->setPos(scene->cursorPosition());
 }
 
 void DotItem::mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) {

cropeditor/drawing/ellipseitem.cpp

@@ -1,11 +1,11 @@
 #include "ellipseitem.hpp"
 
-void EllipseItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void EllipseItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (!ellie) {
-        ellie = scene->addEllipse(e->scenePos().x(), e->scenePos().y(), 0, 0, scene->pen(), scene->brush());
-        initPos = e->scenePos();
+        ellie = scene->addEllipse(scene->cursorPosition().x(), scene->cursorPosition().y(), 0, 0, scene->pen(), scene->brush());
+        initPos = scene->cursorPosition();
     } else {
-        auto p = e->scenePos();
+        auto p = scene->cursorPosition();
         ellie->setRect(QRectF(qMin(initPos.x(), p.x()), qMin(initPos.y(), p.y()), qAbs(initPos.x() - p.x()),
                               qAbs(initPos.y() - p.y())));
     }

cropeditor/drawing/ellipseitem.hpp

@@ -12,7 +12,7 @@ public:
     }
     ~EllipseItem() {
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override {
     }
 

cropeditor/drawing/eraseritem.cpp

@@ -6,9 +6,9 @@ EraserItem::EraserItem() {
 EraserItem::~EraserItem() {
 }
 
-void EraserItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void EraserItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     for (auto i : scene->items()) {
-        if (i->contains(e->scenePos()) && i->zValue() != -1 && i != scene->polyItm() && i != scene->selRect()) {
+        if (i->contains(scene->cursorPosition()) && i->zValue() != -1 && i != scene->polyItm() && i != scene->selRect()) {
             scene->removeItem(i);
             break;
         }

cropeditor/drawing/eraseritem.hpp

@@ -10,7 +10,7 @@ public:
     QString name() override {
         return "Eraser";
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override {
     }
 };

cropeditor/drawing/lineitem.cpp

@@ -3,12 +3,12 @@
 LineItem::LineItem() {
 }
 
-void LineItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void LineItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (init.isNull()) {
-        init = e->scenePos();
+        init = scene->cursorPosition();
         line = scene->addLine(QLineF(init, init), scene->pen());
     } else {
-        line->setLine(QLineF(init, e->scenePos()));
+        line->setLine(QLineF(init, scene->cursorPosition()));
     }
 }
 

cropeditor/drawing/lineitem.hpp

@@ -9,7 +9,7 @@ public:
     QString name() override {
         return "Straight line";
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override;
 
 private:

cropeditor/drawing/pathitem.cpp

@@ -9,13 +9,13 @@ PathItem::~PathItem() {
     delete path;
 }
 
-void PathItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void PathItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (path == nullptr) {
-        path = new QPainterPath(e->scenePos());
+        path = new QPainterPath(scene->cursorPosition());
         pathItem = scene->addPath(*path, scene->pen(),
                                   settings::settings().value("brushPath", false).toBool() ? scene->brush() : QBrush());
     } else {
-        path->quadTo(path->currentPosition(), e->scenePos());
+        path->quadTo(path->currentPosition(), scene->cursorPosition());
         pathItem->setPath(*path);
     }
 }

cropeditor/drawing/pathitem.hpp

@@ -11,7 +11,7 @@ public:
     QString name() {
         return "Path";
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene);
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene);
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *e, CropScene *scene);
 
 private:

cropeditor/drawing/rectitem.cpp

@@ -6,14 +6,14 @@ RectItem::RectItem() {
 RectItem::~RectItem() {
 }
 
-void RectItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void RectItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (!rect) {
-        rect = scene->addRect(e->scenePos().x(), e->scenePos().y(), 0, 0);
+        rect = scene->addRect(scene->cursorPosition().x(), scene->cursorPosition().y(), 0, 0);
         rect->setBrush(scene->brush());
         rect->setPen(scene->pen());
-        initPos = e->scenePos();
+        initPos = scene->cursorPosition();
     } else {
-        auto p = e->scenePos();
+        auto p = scene->cursorPosition();
         rect->setRect(
         QRect(qMin(initPos.x(), p.x()), qMin(initPos.y(), p.y()), qAbs(initPos.x() - p.x()), qAbs(initPos.y() - p.y())));
     }

cropeditor/drawing/rectitem.hpp

@@ -10,7 +10,7 @@ public:
     QString name() override {
         return "Rectangle";
     }
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override;
 
 private:

cropeditor/drawing/textitem.cpp

@@ -10,15 +10,15 @@ bool TextItem::init(CropScene *s) {
     return ok;
 }
 
-void TextItem::mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) {
+void TextItem::mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) {
     if (!textItem) {
         textItem = scene->addSimpleText(text, scene->font());
-        textItem->setPos(e->scenePos());
+        textItem->setPos(scene->cursorPosition());
         textItem->setPen(scene->pen().color());
         textItem->setBrush(scene->pen().color());
     } else {
-        auto ee
-        = 180 + qRadiansToDegrees(qAtan2((textItem->pos().y() - e->scenePos().y()), (textItem->pos().x() - e->scenePos().x())));
+        auto ee = 180 + qRadiansToDegrees(qAtan2((textItem->pos().y() - scene->cursorPosition().y()),
+                                                 (textItem->pos().x() - scene->cursorPosition().x())));
         textItem->setRotation(ee);
     }
 }

cropeditor/drawing/textitem.hpp

@@ -8,7 +8,7 @@ class TextItem : public DrawItem {
 public:
     QString name() override;
     bool init(CropScene *s) override;
-    void mouseDragEvent(QGraphicsSceneMouseEvent *e, CropScene *scene) override;
+    void mouseDragEvent(QGraphicsSceneMouseEvent *, CropScene *scene) override;
     void mouseDragEndEvent(QGraphicsSceneMouseEvent *, CropScene *) override;
 
 private:

main.cpp

@@ -32,6 +32,7 @@ bool stillAlive = true;
     }
 
 void handler(QtMsgType type, const QMessageLogContext &, const QString &msg) {
+    if (!verbose && msg.startsWith("QPixmap::fromWinHBITMAP")) return;
     std::string stdMsg = msg.toStdString();
     switch (type) {
     case QtDebugMsg: