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statistics: collect colors in a StatsTheme class

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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
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68
stats/statscolors.h
View file

@ -3,31 +3,53 @@
#ifndef STATSCOLORS_H
#define STATSCOLORS_H
#include <vector>
#include <QColor>
#include <QString>
inline const QColor backgroundColor(Qt::white);
inline const QColor fillColor(0x44, 0x76, 0xaa);
inline const QColor borderColor(0x66, 0xb2, 0xff);
inline const QColor selectedColor(0xaa, 0x76, 0x44);
inline const QColor selectedBorderColor(0xff, 0xb2, 0x66);
inline const QColor highlightedColor(Qt::yellow);
inline const QColor highlightedBorderColor(0xaa, 0xaa, 0x22);
inline const QColor darkLabelColor(Qt::black);
inline const QColor lightLabelColor(Qt::white);
inline const QColor axisColor(Qt::black);
inline const QColor gridColor(0xcc, 0xcc, 0xcc);
inline const QColor informationBorderColor(Qt::black);
inline const QColor informationColor(0xff, 0xff, 0x00, 192); // Note: fourth argument is opacity
inline const QColor legendColor(0x00, 0x8e, 0xcc, 192); // Note: fourth argument is opacity
inline const QColor legendBorderColor(Qt::black);
inline const QColor quartileMarkerColor(Qt::red);
inline const QColor regressionItemColor(Qt::red);
inline const QColor meanMarkerColor(Qt::green);
inline const QColor medianMarkerColor(Qt::red);
inline const QColor selectionLassoColor(Qt::black);
inline const QColor selectionOverlayColor(Qt::lightGray);
class QSGTexture;
QColor binColor(int bin, int numBins);
QColor labelColor(int bin, size_t numBins);
class StatsTheme {
public:
StatsTheme();
virtual QString name() const = 0;
QColor backgroundColor;
QColor fillColor;
QColor borderColor;
QColor selectedColor;
QColor selectedBorderColor;
QColor highlightedColor;
QColor highlightedBorderColor;
// The dark and light label colors are with respect to the light theme.
// In the dark theme, dark is light and light is dark. Might want to change the names!
QColor darkLabelColor;
QColor lightLabelColor;
QColor axisColor;
QColor gridColor;
QColor informationBorderColor;
QColor informationColor;
QColor legendColor;
QColor legendBorderColor;
QColor quartileMarkerColor;
QColor regressionItemColor;
QColor meanMarkerColor;
QColor medianMarkerColor;
QColor selectionLassoColor;
QColor selectionOverlayColor;
virtual QColor binColor(int bin, int numBins) const = 0;
virtual QColor labelColor(int bin, size_t numBins) const = 0;
// These are cashes for the QSG rendering engine
// Note: Originally these were std::unique_ptrs, which automatically
// freed the textures on exit. However, destroying textures after
// QApplication finished its thread leads to crashes. Therefore, these
// are now normal pointers and the texture objects are leaked.
mutable QSGTexture *scatterItemTexture = nullptr;
mutable QSGTexture *scatterItemSelectedTexture = nullptr;
mutable QSGTexture *scatterItemHighlightedTexture = nullptr;
mutable QSGTexture *selectedTexture = nullptr; // A checkerboard pattern.
};
extern std::vector<const StatsTheme *> statsThemes;
#endif