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statistics: implement rectangle selection in scatter plot

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Allow the user to select regions of the scatter plot using
a rectangular selection. When shift is pressed, do an
incremental selection.

Unfortunately, the list-selection code is so slow that this
becomes unusable for a large number of selected dives.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-02-01 23:17:04 +01:00 • committed by Dirk Hohndel
parent e38b78b2aa
commit d63d4cd3c3
16 changed files with 207 additions and 36 deletions
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2
stats/boxseries.h
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@ -23,7 +23,7 @@ public:
void updatePositions() override;
bool hover(QPointF pos) override;
void unhighlight() override;
void selectItemsUnderMouse(const QPointF &point, bool shiftPressed) override;
bool selectItemsUnderMouse(const QPointF &point, bool shiftPressed) override;
// Note: this expects that all items are added with increasing pos
// and that no bar is inside another bar, i.e. lowerBound and upperBound