[seiscomp, scanloc] Install, add .gitignore

include/seiscomp/gui/map/annotations.h

@@ -0,0 +1,173 @@
+/***************************************************************************
+ * Copyright (C) gempa GmbH                                                *
+ * All rights reserved.                                                    *
+ * Contact: gempa GmbH (seiscomp-dev@gempa.de)                             *
+ *                                                                         *
+ * GNU Affero General Public License Usage                                 *
+ * This file may be used under the terms of the GNU Affero                 *
+ * Public License version 3.0 as published by the Free Software Foundation *
+ * and appearing in the file LICENSE included in the packaging of this     *
+ * file. Please review the following information to ensure the GNU Affero  *
+ * Public License version 3.0 requirements will be met:                    *
+ * https://www.gnu.org/licenses/agpl-3.0.html.                             *
+ *                                                                         *
+ * Other Usage                                                             *
+ * Alternatively, this file may be used in accordance with the terms and   *
+ * conditions contained in a signed written agreement between you and      *
+ * gempa GmbH.                                                             *
+ ***************************************************************************/
+
+
+#ifndef SEISCOMP_GUI_MAP_ANNOTATIONS_H
+#define SEISCOMP_GUI_MAP_ANNOTATIONS_H
+
+
+#include <QColor>
+#include <QFont>
+#include <QPen>
+#include <QPoint>
+#include <QString>
+#include <QVariant>
+
+
+namespace Seiscomp {
+namespace Gui {
+namespace Map {
+
+
+class Annotations;
+class AnnotationItem;
+
+
+struct AnnotationStyle : public QObject {
+	AnnotationStyle(QObject *parent = nullptr);
+	virtual ~AnnotationStyle() {}
+
+	virtual void draw(QPainter &painter, const AnnotationItem &item);
+
+	virtual QRect itemRect(QPainter &painter, const AnnotationItem &item,
+	                       const QPoint &pos) const;
+
+	struct Palette {
+		QPen   textPen;
+		QPen   borderPen;
+		QBrush brush;
+	};
+
+	// One for normal (0) and one for highlighted (1)
+	Palette palette[2];
+	QFont   font;
+};
+
+
+/**
+ * @brief The AnnotationItem struct holds properties like text, text color etc.
+ *        which might be used when rendering an item on a map.
+*/
+class AnnotationItem {
+	private:
+		AnnotationItem(Annotations *parent) : pool(parent) {}
+		AnnotationItem(Annotations *parent, const QString &text)
+		: pool(parent), text(text) {}
+
+	public:
+		~AnnotationItem();
+
+	public:
+		/**
+		 * @brief Updates the label rect of the item based on the given position
+		 *        and style
+		 * @param pos The position of the label rect
+		 */
+		void updateLabelRect(QPainter &painter, const QPoint &pos) {
+			if ( style ) {
+				labelRect = style->itemRect(painter, *this, pos);
+			}
+			else {
+				labelRect = QRect();
+			}
+		}
+
+	public:
+		Annotations     *pool{nullptr};
+		QString          text;
+		AnnotationStyle *style{nullptr};
+		bool             visible{true};
+		bool             highlighted{false};
+		QRect            labelRect;
+		QVariant         data;
+
+	friend class Annotations;
+};
+
+
+class Annotations : public QObject {
+	public:
+		typedef QList<AnnotationItem*> Items;
+		typedef Items::const_iterator const_iterator;
+
+	public:
+		Annotations(QObject *parent = nullptr);
+		~Annotations();
+
+		const_iterator begin() const {
+			return _items.begin();
+		}
+
+		const_iterator end() const {
+			return _items.end();
+		}
+
+		/**
+		 * @brief Clears the annotation pool
+		 * This call calls delete for each AnnotationItem.
+		 */
+		void clear();
+
+		int size() { return _items.size(); }
+
+		/**
+		 * @brief Adds a new object to the annotation pool
+		 * @param text The annotation text
+		 * @return Link to an annotation item which is owned by this instance
+		 */
+		AnnotationItem *add(const QString &text);
+
+		/**
+		 * @brief Removes annotation item from annotation pool and deletes it
+		 * @param item The annotation item to remove
+		 * @return true if removed, false otherwise
+		 */
+		bool remove(const AnnotationItem *item);
+
+		/**
+		 * @brief Removes annotation item from annotation pool but does not delete
+		 *        it. The pool member in the item will be set to nullptr.
+		 * @param item The annotation item to be taken
+		 * @return true if taken, false otherwise
+		 */
+		bool take(const AnnotationItem *item);
+
+		/**
+		 * @brief Sets the default annotation style used while
+		 * creating annotation items
+		 * @param style The annotation style to set
+		 */
+		void setDefaultStyle(AnnotationStyle *style) {
+			_style = style;
+		}
+
+
+	private:
+		Items            _items;
+		AnnotationStyle  _defaultStyle;
+		AnnotationStyle *_style{nullptr};
+};
+
+
+} // ns Map
+} // ns Gui
+} // ns Seiscomp
+
+
+#endif