1 files changed, 107 insertions, 0 deletions
diff --git a/stats/chartitem.cpp b/stats/chartitem.cpp
new file mode 100644
index 000000000..c0fc50841
--- /dev/null
+++ b/stats/chartitem.cpp
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "chartitem.h"
+#include "statsview.h"
+
+#include <cmath>
+#include <QQuickWindow>
+#include <QSGImageNode>
+#include <QSGTexture>
+
+static int round_up(double f)
+{
+	return static_cast<int>(ceil(f));
+}
+
+ChartItem::ChartItem(StatsView &v) :
+	dirty(false), view(v), positionDirty(false), textureDirty(false)
+{
+}
+
+ChartItem::~ChartItem()
+{
+	painter.reset(); // Make sure to destroy painter before image that is painted on
+	view.unregisterChartItem(this);
+}
+
+QSizeF ChartItem::sceneSize() const
+{
+	return view.size();
+}
+
+void ChartItem::setTextureDirty()
+{
+	textureDirty = true;
+	dirty = true;
+}
+
+void ChartItem::setPositionDirty()
+{
+	positionDirty = true;
+	dirty = true;
+}
+
+void ChartItem::render()
+{
+	if (!dirty)
+		return;
+	if (!node) {
+		node.reset(view.w()->createImageNode());
+		view.addQSGNode(node.get(), 0);
+	}
+	if (!img) {
+		resize(QSizeF(1,1));
+		img->fill(Qt::transparent);
+	}
+	if (textureDirty) {
+		texture.reset(view.w()->createTextureFromImage(*img, QQuickWindow::TextureHasAlphaChannel));
+		node->setTexture(texture.get());
+		textureDirty = false;
+	}
+	if (positionDirty) {
+		node->setRect(rect);
+		positionDirty = false;
+	}
+	dirty = false;
+}
+
+void ChartItem::resize(QSizeF size)
+{
+	painter.reset();
+	img.reset(new QImage(round_up(size.width()), round_up(size.height()), QImage::Format_ARGB32));
+	painter.reset(new QPainter(img.get()));
+	painter->setRenderHint(QPainter::Antialiasing);
+	rect.setSize(size);
+	setTextureDirty();
+}
+
+void ChartItem::setPos(QPointF pos)
+{
+	rect.moveTopLeft(pos);
+	setPositionDirty();
+}
+
+QRectF ChartItem::getRect() const
+{
+	return rect;
+}
+
+ChartRectItem::ChartRectItem(StatsView &v, const QPen &pen, const QBrush &brush, double radius) : ChartItem(v),
+	pen(pen), brush(brush), radius(radius)
+{
+}
+
+ChartRectItem::~ChartRectItem()
+{
+}
+
+void ChartRectItem::resize(QSizeF size)
+{
+	ChartItem::resize(size);
+	img->fill(Qt::transparent);
+	painter->setPen(pen);
+	painter->setBrush(brush);
+	QSize imgSize = img->size();
+	int width = pen.width();
+	QRect rect(width / 2, width / 2, imgSize.width() - width, imgSize.height() - width);
+	painter->drawRoundedRect(rect, radius, radius, Qt::AbsoluteSize);
+}