1 files changed, 52 insertions, 0 deletions
diff --git a/src/quick/scenegraph/util/qsgninepatchnode.cpp b/src/quick/scenegraph/util/qsgninepatchnode.cpp
index 9c167ca76f..33568b5488 100644
--- a/src/quick/scenegraph/util/qsgninepatchnode.cpp
+++ b/src/quick/scenegraph/util/qsgninepatchnode.cpp
@@ -74,4 +74,56 @@ QT_BEGIN_NAMESPACE
     \internal
  */
 
+void QSGNinePatchNode::rebuildGeometry(QSGTexture *texture, QSGGeometry *geometry, const QVector4D &padding,
+                                       const QRectF &bounds, qreal dpr)
+{
+    if (padding.x() <= 0 && padding.y() <= 0 && padding.z() <= 0 && padding.w() <= 0) {
+        geometry->allocate(4, 0);
+        QSGGeometry::updateTexturedRectGeometry(geometry, bounds, texture->normalizedTextureSubRect());
+        return;
+    }
+
+    QRectF tc = texture->normalizedTextureSubRect();
+    QSize ts = texture->textureSize();
+    ts.setHeight(ts.height() / dpr);
+    ts.setWidth(ts.width() / dpr);
+
+    qreal invtw = tc.width() / ts.width();
+    qreal invth = tc.height() / ts.height();
+
+    struct Coord { qreal p; qreal t; };
+    Coord cx[4] = { { bounds.left(), tc.left() },
+                    { bounds.left() + padding.x(), tc.left() + padding.x() * invtw },
+                    { bounds.right() - padding.z(), tc.right() - padding.z() * invtw },
+                    { bounds.right(), tc.right() }
+                  };
+    Coord cy[4] = { { bounds.top(), tc.top() },
+                    { bounds.top() + padding.y(), tc.top() + padding.y() * invth },
+                    { bounds.bottom() - padding.w(), tc.bottom() - padding.w() * invth },
+                    { bounds.bottom(), tc.bottom() }
+                  };
+
+    geometry->allocate(16, 28);
+    QSGGeometry::TexturedPoint2D *v = geometry->vertexDataAsTexturedPoint2D();
+    for (int y = 0; y < 4; ++y) {
+        for (int x = 0; x < 4; ++x) {
+            v->set(cx[x].p, cy[y].p, cx[x].t, cy[y].t);
+            ++v;
+        }
+    }
+
+    quint16 *i = geometry->indexDataAsUShort();
+    for (int r = 0; r < 3; ++r) {
+        if (r > 0)
+            *i++ = 4 * r;
+        for (int c = 0; c < 4; ++c) {
+            i[0] = 4 * r + c;
+            i[1] = 4 * r + c + 4;
+            i += 2;
+        }
+        if (r < 2)
+            *i++ = 4 * r + 3 + 4;
+    }
+}
+
 QT_END_NAMESPACE