git-svn-id: svn://db.shs.com.ru/libs@586 a8b55f48-bf90-11e4-a774-851b48703e85

test/qad/blockview/blockviewwavetrace.h

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+#ifndef BLOCKVIEWWAVETRACE_H
+#define BLOCKVIEWWAVETRACE_H
+
+#include "blockitem.h"
+
+class BlockViewWavetrace {
+public:
+	BlockViewWavetrace(int width = 1, int height = 1);
+	
+	enum CellState {Empty = -1, Blocked = -2};
+	enum Direction {NoTrace, Horizontal, Vertical};
+	
+	int width() const {return wid;}
+	int height() const {return hei;}
+	void resize(int width, int height);
+	void resize(const QSize & sz) {resize(sz.width(), sz.height());}
+	void fill(short val = -1);
+	void fill(const QRect & rect, short val = -1);
+	void fill(const QPoint & point, short val = -1) {field[point.x()][point.y()] = val;}
+	void fill(int px, int py, short val = -1) {field[px][py] = val;}
+	void fill(BlockViewWavetrace::CellState val = Empty) {fill((short)val);}
+	void fill(const QRect & rect, BlockViewWavetrace::CellState val = Empty) {fill(rect, (short)val);}
+	void fill(const QPoint & point, BlockViewWavetrace::CellState val = Empty) {fill(point, (short)val);}
+	void fill(int px, int py, BlockViewWavetrace::CellState val = Empty) {fill(px, py, (short)val);}
+	void clear() {fill(-1);}
+	bool trace(const QPoint & start, const QPoint & finish);
+	Direction preferredDirection() const {return dir_;}
+	void setPreferredDirection(Direction dir);
+	void setMaximumSteps(int steps) {max_steps = steps;}
+	int maximumSteps() const {return max_steps;}
+	void gatherPath();
+	const QVector<QPoint> & path() const;
+
+private:
+	int wid, hei, max_steps;
+	Direction dir_;
+	QVector<QVector<short> > field;
+	QVector<QPoint> path_;
+	QPoint dps[4], st, fn;
+	
+};
+
+#endif // BLOCKVIEWWAVETRACE_H