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statistics: draw title of axes

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Easy enough to implement, but one weirdness:
To get the height of the rotated text, one has to access the
width() member of the boundingRect. I'm not sure if that makes
sense, but so be it.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-01-05 13:04:53 +01:00 • committed by Dirk Hohndel
parent 4ab9f1c6b0
commit 8dfa3f6db3
3 changed files with 55 additions and 29 deletions
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16
stats/statsaxis.h
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@ -31,7 +31,7 @@ public:
double toScreen(double) const;
double toValue(double) const;
protected:
StatsAxis(QtCharts::QChart *chart, bool horizontal, bool labelsBetweenTicks);
StatsAxis(QtCharts::QChart *chart, const QString &title, bool horizontal, bool labelsBetweenTicks);
QtCharts::QChart *chart;
struct Label {
@ -56,14 +56,18 @@ protected:
bool labelsBetweenTicks; // When labels are between ticks, they can be moved closer to the axis
QFont labelFont, titleFont;
std::unique_ptr<QGraphicsSimpleTextItem> title;
double size; // width for horizontal, height for vertical
double zeroOnScreen;
double min, max;
double labelWidth; // Maximum width of labels
private:
double titleSpace() const; // Space needed for title
};
class ValueAxis : public StatsAxis {
public:
ValueAxis(QtCharts::QChart *chart, double min, double max, int decimals, bool horizontal);
ValueAxis(QtCharts::QChart *chart, const QString &title, double min, double max, int decimals, bool horizontal);
private:
double min, max;
int decimals;
@ -72,7 +76,7 @@ private:
class CountAxis : public ValueAxis {
public:
CountAxis(QtCharts::QChart *chart, int count, bool horizontal);
CountAxis(QtCharts::QChart *chart, const QString &title, int count, bool horizontal);
private:
int count;
void updateLabels() override;
@ -80,7 +84,7 @@ private:
class CategoryAxis : public StatsAxis {
public:
CategoryAxis(QtCharts::QChart *chart, const std::vector<QString> &labels, bool horizontal);
CategoryAxis(QtCharts::QChart *chart, const QString &title, const std::vector<QString> &labels, bool horizontal);
private:
void updateLabels();
};
@ -93,7 +97,7 @@ struct HistogramAxisEntry {
class HistogramAxis : public StatsAxis {
public:
HistogramAxis(QtCharts::QChart *chart, std::vector<HistogramAxisEntry> bin_values, bool horizontal);
HistogramAxis(QtCharts::QChart *chart, const QString &title, std::vector<HistogramAxisEntry> bin_values, bool horizontal);
private:
void updateLabels() override;
std::vector<HistogramAxisEntry> bin_values;
@ -102,7 +106,7 @@ private:
class DateAxis : public HistogramAxis {
public:
DateAxis(QtCharts::QChart *chart, double from, double to, bool horizontal);
DateAxis(QtCharts::QChart *chart, const QString &title, double from, double to, bool horizontal);
};
#endif