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-rw-r--r--src/client/qwaylandabstractdecoration.cpp15
1 files changed, 10 insertions, 5 deletions
diff --git a/src/client/qwaylandabstractdecoration.cpp b/src/client/qwaylandabstractdecoration.cpp
index 6a8f1d92d..98a0b17d5 100644
--- a/src/client/qwaylandabstractdecoration.cpp
+++ b/src/client/qwaylandabstractdecoration.cpp
@@ -100,14 +100,19 @@ void QWaylandAbstractDecoration::setWaylandWindow(QWaylandWindow *window)
d->m_wayland_window = window;
}
-// \a size is without margins
+// Creates regions like this on the outside of a rectangle with inner size \a size
+// -----
+// | |
+// -----
+// I.e. the top and bottom extends into the corners
static QRegion marginsRegion(const QSize &size, const QMargins &margins)
{
QRegion r;
- r += QRect(0, 0, size.width(), margins.top()); // top
- r += QRect(0, size.height()+margins.top(), size.width(), margins.bottom()); //bottom
- r += QRect(0, 0, margins.left(), size.height()); //left
- r += QRect(size.width()+margins.left(), 0, margins.right(), size.height()); // right
+ const int widthWithMargins = margins.left() + size.width() + margins.right();
+ r += QRect(0, 0, widthWithMargins, margins.top()); // top
+ r += QRect(0, size.height()+margins.top(), widthWithMargins, margins.bottom()); //bottom
+ r += QRect(0, margins.top(), margins.left(), size.height()); //left
+ r += QRect(size.width()+margins.left(), margins.top(), margins.right(), size.height()); // right
return r;
}