statistics: collect colors in a StatsTheme class

To enable rudimentary theming, collect all colors in a new
theme class. The class has to be passed down to the various
items.

In general the items save a reference to the them in the
constructor. Alternatively, they might also just query
the StatsView everytime they need to access a color.
For now, it's hard the say what is preferred: a reference
per item or a function call per invokation?

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-02-16 17:05:39 +01:00 committed by Dirk Hohndel
parent 56e02dbcc0
commit b5aac29cea
25 changed files with 272 additions and 166 deletions

View file

@ -1,13 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
#include "quartilemarker.h"
#include "statscolors.h"
#include "statsaxis.h"
#include "statscolors.h"
#include "statsview.h"
#include "zvalues.h"
static const double quartileMarkerSize = 15.0;
QuartileMarker::QuartileMarker(StatsView &view, double pos, double value, StatsAxis *xAxis, StatsAxis *yAxis) :
ChartLineItem(view, ChartZValue::ChartFeatures, quartileMarkerColor, 2.0),
ChartLineItem(view, ChartZValue::ChartFeatures, view.getCurrentTheme().quartileMarkerColor, 2.0),
xAxis(xAxis), yAxis(yAxis),
pos(pos),
value(value)