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| author | fonsinchen <fonsinchen@openttd.org> | 2014-02-15 12:19:46 +0000 |
|---|---|---|
| committer | fonsinchen <fonsinchen@openttd.org> | 2014-02-15 12:19:46 +0000 |
| commit | 405539791524847ce28e24e0513de8203ac12586 (patch) | |
| tree | 9187acd5c99e1009bbb5f5690cd4808cf37a8036 /src/main_gui.cpp | |
| parent | 4a00552a0959a260b23767d46a1047b9ac1f3f50 (diff) | |
| download | openttd-405539791524847ce28e24e0513de8203ac12586.tar.xz | |
(svn r26338) -Fix [FS#5908]: Don't redraw the link graph overlay if it's empty (MJP)
Diffstat (limited to 'src/main_gui.cpp')
| -rw-r--r-- | src/main_gui.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/main_gui.cpp b/src/main_gui.cpp index 350439ce1..9d13deef6 100644 --- a/src/main_gui.cpp +++ b/src/main_gui.cpp @@ -253,11 +253,17 @@ struct MainWindow : Window virtual void OnTick() { - if (--refresh == 0) { - this->viewport->overlay->RebuildCache(); - this->GetWidget<NWidgetBase>(WID_M_VIEWPORT)->SetDirty(this); - this->refresh = LINKGRAPH_REFRESH_PERIOD; + if (--this->refresh > 0) return; + + this->refresh = LINKGRAPH_REFRESH_PERIOD; + + if (this->viewport->overlay->GetCargoMask() == 0 || + this->viewport->overlay->GetCompanyMask() == 0) { + return; } + + this->viewport->overlay->RebuildCache(); + this->GetWidget<NWidgetBase>(WID_M_VIEWPORT)->SetDirty(this); } virtual void OnPaint() |