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/*
 * Copyright (c) 2012 Mateusz Piękos
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

#pragma once

#include <QGraphicsView>
#include <QGraphicsLineItem>
#include <QMouseEvent>
#include <QPen>
#include <iostream>
#include <Swiften/Base/IDGenerator.h>

#include "TextDialog.h"
#include "FreehandLineItem.h"

namespace Swift {
	class GView : public QGraphicsView {
		Q_OBJECT
	public:
		enum Mode {	Rubber, Line, Rect, Circle, HandLine, Text, Polygon, Select };
		enum Type { New, Update, MoveUp, MoveDown };
		GView(QGraphicsScene* scene, QWidget* parent = 0);
		void setLineWidth(int i);
		void setLineColor(QColor color);
		QColor getLineColor();
		void setBrushColor(QColor color);
		QColor getBrushColor();
		void setMode(Mode mode);
		void mouseMoveEvent(QMouseEvent* event);
		void mousePressEvent(QMouseEvent* event);
		void mouseReleaseEvent(QMouseEvent* /*event*/);
		void addItem(QGraphicsItem* item, QString id, int pos);
		void clear();
		QGraphicsItem* getItem(QString id);
		void deleteItem(QString id);
		QString getNewID();
		void move(QGraphicsItem* item, int npos);
		void deselect(QString id);

	public slots:
		void moveUpSelectedItem();
		void moveDownSelectedItem();

	private slots:
		void handleTextItemModified(QGraphicsTextItem*);
	private:
		void changePenAndBrush(QGraphicsItem* item, QPen pen, QBrush brush);
		void setActualPenAndBrushFromItem(QGraphicsItem* item);
		void deselect();

		int zValue;
		bool mousePressed;
		QPen pen;
		QBrush brush;
		QPen defaultPen;
		QBrush defaultBrush;
		Mode mode;
		QGraphicsItem* lastItem;
		QGraphicsRectItem* selectionRect;
		TextDialog* textDialog;
		QMap<QString, QGraphicsItem*> itemsMap_;
		QList<QGraphicsItem*> items_;
		IDGenerator idGenerator;

	signals:
		void lastItemChanged(QGraphicsItem* item, int pos, GView::Type type);
		void itemDeleted(QString id, int pos);
		void lineWidthChanged(int i);
		void lineColorChanged(QColor color);
		void brushColorChanged(QColor color);
	};
}