version 2.18.0

add GraphicRanges to graphic library
new graphic_analysis library

libs/graphic/graphic_ranges.h

@@ -0,0 +1,87 @@
+/*
+	QAD - Qt ADvanced
+
+	Ivan Pelipenko peri4ko@yandex.ru
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef GRAPHIC_RANGES_H
+#define GRAPHIC_RANGES_H
+
+#include "graphic.h"
+
+
+class QAD_GRAPHIC_EXPORT GraphicRanges: public Graphic {
+	Q_OBJECT
+
+public:
+	explicit GraphicRanges(QWidget * parent = 0);
+	~GraphicRanges();
+
+	struct QAD_GRAPHIC_EXPORT Range {
+		Range(double s = 0., double e = 0., QString n = QString(), QColor c = Qt::black) {
+			start = s;
+			end   = e;
+			name  = n;
+			color = c;
+		}
+		bool isEmpty() const { return qFuzzyIsNull(start - end); }
+		bool hasColor() const { return color != Qt::black; }
+		QString name;
+		QColor color;
+		double start;
+		double end;
+	};
+
+	int addRange(double start, double end, QString name, QColor color = Qt::black);
+	void replaceRange(int index, double start, double end);
+	Range removeRange(int index);
+	void clearRanges();
+	void clearRangesByColor(QColor c);
+	QList<Range> ranges() const { return ranges_; }
+	Range rangeAll() const;
+	Range rangeVisible() const;
+	bool isRangeRequested() const { return request; }
+
+	void setCurrentRange(double start, double end);
+	void clearCurrentRange();
+	Range currentRange() const;
+
+	void clear();
+
+protected:
+	void drawRange(QPainter * p, const Range & r, QColor color);
+
+	QList<Range> ranges_;
+	QColor color_, color_cur;
+	double range_start, range_end;
+	bool range_sel, request;
+
+private slots:
+	void onPaintEvent(QPainter * p);
+	void onMousePressEvent(QPointF p, int b);
+	void onMouseMoveEvent(QPointF p, int b);
+	void onMouseReleaseEvent(QPointF p, int b);
+
+public slots:
+	void rangeRequest();
+	void cancelRangeRequest(bool with_nav = true);
+
+signals:
+	void rangeSelected(double start, double end);
+};
+
+
+#endif