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engines/titanic/support/rect.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef TITANIC_RECT_H
+#define TITANIC_RECT_H
+
+#include "common/rect.h"
+
+namespace Titanic {
+
+enum Quadrant {
+	Q_CENTER = 0, Q_LEFT, Q_RIGHT, Q_TOP, Q_BOTTOM
+};
+
+typedef Common::Point Point;
+
+class Rect : public Common::Rect {
+public:
+	Rect() : Common::Rect() {}
+	Rect(int16 w, int16 h) : Common::Rect(w, h) {}
+	Rect(int16 x1, int16 y1, int16 x2, int16 y2) : Common::Rect(x1, y1, x2, y2) {}
+
+	/**
+	 * Returns the top/left corner of the rect as a point
+	 */
+	operator Point() { return Point(left, top); }
+
+	/**
+	 * Clear the rect
+	 */
+	void clear() { left = top = right = bottom = 0; }
+
+	/**
+	 * Combine another rect into this one
+	 */
+	void combine(const Rect &r);
+
+	/**
+	 * Constrains/clips to the intersection area of the given rect
+	 */
+	void constrain(const Rect &r);
+
+	/**
+	 * Returns a center point for a given edge or center of the rect
+	 */
+	Point getPoint(Quadrant quadrant);
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_RECT_H */