Added ability to duplicate items in photo editor.

Telegram/SourceFiles/editor/editor_paint.cpp

@@ -117,7 +117,6 @@ Paint::Paint(
 				size,
 				x,
 				y);
-			item->setZValue((*_lastZ)++);
 			_scene->addItem(item);
 			_scene->clearSelection();
 		}, lifetime());

Telegram/SourceFiles/editor/scene_item_base.cpp

@@ -56,16 +56,17 @@ ItemBase::ItemBase(
 	Qt::DashLine,
 	Qt::SquareCap,
 	Qt::RoundJoin)
-, _horizontalSize(size) {
+, _horizontalSize(size)
+, _zoom(std::move(zoomValue)) {
 	setFlags(QGraphicsItem::ItemIsMovable
 		| QGraphicsItem::ItemIsSelectable
 		| QGraphicsItem::ItemIsFocusable);
 	setAcceptHoverEvents(true);
 	setPos(x, y);
+	setZValue((*_lastZ)++);
 
 	const auto &handleSize = st::photoEditorItemHandleSize;
-	std::move(
+	_zoom.value(
-		zoomValue
 	) | rpl::start_with_next([=](float64 zoom) {
 		_scaledHandleSize = handleSize / zoom;
 		_scaledInnerMargins = QMarginsF(
@@ -187,6 +188,21 @@ void ItemBase::contextMenuEvent(QGraphicsSceneContextMenuEvent *event) {
 	_menu->addAction(tr::lng_photo_editor_menu_flip(tr::now), [=] {
 		setFlip(!flipped());
 	});
+	_menu->addAction(tr::lng_photo_editor_menu_duplicate(tr::now), [=] {
+		if (const auto s = static_cast<Scene*>(scene())) {
+			const auto newItem = duplicate(
+				_zoom.value(),
+				_lastZ,
+				_horizontalSize,
+				scenePos().x() + _horizontalSize / 3,
+				scenePos().y() + _verticalSize / 3);
+			newItem->setFlip(flipped());
+			newItem->setRotation(rotation());
+			s->clearSelection();
+			newItem->setSelected(true);
+			s->addItem(newItem);
+		}
+	});
 
 	_menu->popup(event->screenPos());
 }

Telegram/SourceFiles/editor/scene_item_base.h

@@ -70,6 +70,12 @@ protected:
 	void setAspectRatio(float64 aspectRatio);
 
 	virtual void performFlip();
+	virtual std::shared_ptr<ItemBase> duplicate(
+		rpl::producer<float64> zoomValue,
+		std::shared_ptr<float64> zPtr,
+		int size,
+		int x,
+		int y) const = 0;
 private:
 	HandleType handleType(const QPointF &pos) const;
 	QRectF rightHandleRect() const;
@@ -94,6 +100,7 @@ private:
 
 	bool _flipped = false;
 
+	rpl::variable<float64> _zoom;
 	rpl::lifetime _lifetime;
 
 };

Telegram/SourceFiles/editor/scene_item_sticker.cpp

@@ -101,4 +101,19 @@ void ItemSticker::performFlip() {
 	_pixmap = _pixmap.transformed(QTransform().scale(-1, 1));
 }
 
+std::shared_ptr<ItemBase> ItemSticker::duplicate(
+		rpl::producer<float64> zoomValue,
+		std::shared_ptr<float64> zPtr,
+		int size,
+		int x,
+		int y) const {
+	return std::make_shared<ItemSticker>(
+		_document,
+		std::move(zoomValue),
+		std::move(zPtr),
+		size,
+		x,
+		y);
+}
+
 } // namespace Editor

Telegram/SourceFiles/editor/scene_item_sticker.h

@@ -38,6 +38,12 @@ public:
 	int type() const override;
 protected:
 	void performFlip() override;
+	std::shared_ptr<ItemBase> duplicate(
+		rpl::producer<float64> zoomValue,
+		std::shared_ptr<float64> zPtr,
+		int size,
+		int x,
+		int y) const override;
 private:
 	const not_null<DocumentData*> _document;
 	const std::shared_ptr<Data::DocumentMedia> _mediaView;