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| author |  Berthold Stoeger <bstoeger@mail.tuwien.ac.at> | 2021-01-13 16:19:27 +0100 |
|---|---|---|
| committer |  bstoeger <32835590+bstoeger@users.noreply.github.com> | 2021-01-20 08:47:18 +0100 |
| commit | e1c0cace95d6ed19dff37a524c7f4b2288d258d7 (patch) | |
| tree | 403215ac791cf0ae6eda52007c1a5feedd0b844d /stats/legend.cpp | |
| parent | 785d5189f617bab7d5dde668563fc4889e46f695 (diff) | |
| download | subsurface-e1c0cace95d6ed19dff37a524c7f4b2288d258d7.tar.gz | |
statistics: add notion of Z-value to chart items
The chart items were drawn in order of creation. To control this,
add a notion of Z-value. In contrast to QGraphicsScene, make
this a small integer value.
To controll order of drawing, a plain QSGNode is created for
every possible Z-Value and items are added to these nodes.
Thus, items are rendered by Z-value and if the Z-value is equal
by order of creation.
Likewise split the list of chart-items into Z-values, so that
items can be quickly unregistered: The items that will be
removed individually will usuall be part of Z-levels with only
few items (e.g. legend, infobox). Z-levels with many items
(notably the series) will always be fully rebuilt.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Diffstat (limited to 'stats/legend.cpp')
| -rw-r--r-- | stats/legend.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/stats/legend.cpp b/stats/legend.cpp index 2cbd883db..590de21b0 100644 --- a/stats/legend.cpp +++ b/stats/legend.cpp @@ -15,7 +15,8 @@ static const QColor legendColor(0x00, 0x8e, 0xcc, 192); // Note: fourth argument static const QColor legendBorderColor(Qt::black); Legend::Legend(StatsView &view, const std::vector<QString> &names) : - ChartRectItem(view, QPen(legendBorderColor, legendBorderSize), QBrush(legendColor), legendBoxBorderRadius), + ChartRectItem(view, ChartZValue::Legend, + QPen(legendBorderColor, legendBorderSize), QBrush(legendColor), legendBoxBorderRadius), displayedItems(0), width(0.0), height(0.0), font(QFont()) // Make configurable { |