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DecodeTrace: Make an empty decode trace appear symmetrical
[pulseview.git]
/
pv
/
view
/
decodetrace.cpp
diff --git
a/pv/view/decodetrace.cpp
b/pv/view/decodetrace.cpp
index ab9514cd4e4da34e706c522ecb4244a123a38ad9..20de3755be482688be6cc2ce4f28220c2bd84f5c 100644
(file)
--- a/
pv/view/decodetrace.cpp
+++ b/
pv/view/decodetrace.cpp
@@
-169,7
+169,10
@@
pair<int, int> DecodeTrace::v_extents() const
{
const int row_height = (ViewItemPaintParams::text_height() * 6) / 4;
{
const int row_height = (ViewItemPaintParams::text_height() * 6) / 4;
- return make_pair(-row_height, row_height * max_visible_rows_);
+ // Make an empty decode trace appear symmetrical
+ const int row_count = max(1, max_visible_rows_);
+
+ return make_pair(-row_height, row_height * row_count);
}
void DecodeTrace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
}
void DecodeTrace::paint_back(QPainter &p, const ViewItemPaintParams &pp)