graphicsWidget.h

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/* Copyright 2014 Kogutich Denis, Smirnov Mikhail, CyberTech Labs Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. */

#pragma once

#include <QtCore/QList>
#include <QtCore/QPoint>
#include <QtCore/QRect>
#include <QtGui/QColor>

#include "include/trikControl/displayWidgetInterface.h"
#include "shapes/shape.h"

namespace trikControl {

class GraphicsWidget : public DisplayWidgetInterface
{
    Q_OBJECT
public:
    GraphicsWidget();
    ~GraphicsWidget();

    void showCommand();

    void hideCommand();

    void setPainterColor(const QColor &color);

    void setPainterWidth(int penWidth);

    void deleteAllItems();

    void deleteLabels();

    void drawPoint(int x, int y);

    void drawLine(int x1, int y1, int x2, int y2);

    void drawRect(int x, int y, int width, int height, bool filled = false);

    void drawEllipse(int x, int y, int width, int height, bool filled = false);

    void drawArc(int x, int y, int width, int height, int startAngle, int spanAngle);

    void addLabel(const QString &text, int x, int y);

    void setPixmap(const QPixmap &picture);

private:
    virtual void paintEvent(QPaintEvent *paintEvent);

    void addShape(Shape *shape);

    QHash<QPair<int, int>, QPair<QColor, QString>> mLabels;

    QList<Shape *> mElements;

    QPixmap mPicture;

    QColor mCurrentPenColor;

    int mCurrentPenWidth;

    QScopedPointer<QFontMetrics> mFontMetrics;
};

}