添加模型分割

client/gui/editor/EntityCutoutUtils.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <QImage>
+#include <QPointF>
+#include <QPainterPath>
+#include <QRect>
+#include <QSize>
+#include <QVector>
+
+namespace entity_cutout {
+
+QPainterPath pathFromWorldPolygon(const QVector<QPointF>& poly);
+QPointF polygonCentroid(const QVector<QPointF>& poly);
+QRect clampRectToImage(const QRect& r, const QSize& size);
+QImage extractEntityImage(const QImage& bg, const QVector<QPointF>& polyWorld, QPointF& outTopLeftWorld);
+void applyBlackFillToBackground(QImage& bgCutout, const QVector<QPointF>& polyWorld);
+
+}  // namespace entity_cutout