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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Wayland module
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef COMPOSITORWINDOW_H
#define COMPOSITORWINDOW_H
#include <QOpenGLWindow>
#include <QPointer>
#include <QOpenGLTextureBlitter>
QT_BEGIN_NAMESPACE
class Compositor;
class View;
class QOpenGLTexture;
class Window : public QOpenGLWindow
{
public:
Window();
void setCompositor(Compositor *comp);
protected:
void initializeGL() override;
void paintGL() override;
void mousePressEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void keyPressEvent(QKeyEvent *e) override;
void keyReleaseEvent(QKeyEvent *e) override;
private slots:
void startMove();
void startResize(int edge, bool anchored);
void startDrag(View *dragIcon);
private:
enum GrabState { NoGrab, MoveGrab, ResizeGrab, DragGrab };
View *viewAt(const QPointF &point);
bool mouseGrab() const { return m_grabState != NoGrab ;}
void drawBackground();
void sendMouseEvent(QMouseEvent *e, View *target);
static QPointF getAnchoredPosition(const QPointF &anchorPosition, int resizeEdge, const QSize &windowSize);
static QPointF getAnchorPosition(const QPointF &position, int resizeEdge, const QSize &windowSize);
QOpenGLTextureBlitter m_textureBlitter;
QSize m_backgroundImageSize;
QOpenGLTexture *m_backgroundTexture = nullptr;
Compositor *m_compositor = nullptr;
QPointer<View> m_mouseView;
GrabState m_grabState = NoGrab;
QSize m_initialSize;
int m_resizeEdge;
bool m_resizeAnchored;
QPointF m_resizeAnchorPosition;
QPointF m_mouseOffset;
QPointF m_initialMousePos;
View *m_dragIconView = nullptr;
};
QT_END_NAMESPACE
#endif // COMPOSITORWINDOW_H
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