diff options
Diffstat (limited to 'src/linkgraph/linkgraph_gui.cpp')
| -rw-r--r-- | src/linkgraph/linkgraph_gui.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/linkgraph/linkgraph_gui.cpp b/src/linkgraph/linkgraph_gui.cpp index 7923fc26c..4db9f95b3 100644 --- a/src/linkgraph/linkgraph_gui.cpp +++ b/src/linkgraph/linkgraph_gui.cpp @@ -239,8 +239,12 @@ void LinkGraphOverlay::AddLinks(const Station *from, const Station *to) * Draw the linkgraph overlay or some part of it, in the area given. * @param dpi Area to be drawn to. */ -void LinkGraphOverlay::Draw(const DrawPixelInfo *dpi) const +void LinkGraphOverlay::Draw(const DrawPixelInfo *dpi) { + if (this->dirty) { + this->RebuildCache(); + this->dirty = false; + } this->DrawLinks(dpi); this->DrawStationDots(dpi); } |