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<h1 class="title">compositor.h Example File</h1>
<span class="subtitle">qwindow-compositor/compositor.h</span>
<!-- $$$qwindow-compositor/compositor.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** 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
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** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#ifndef WINDOWCOMPOSITOR_H</span>
<span class="preprocessor">#define WINDOWCOMPOSITOR_H</span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandCompositor></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandSurface></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandView></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandWlShellSurface></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandXdgSurfaceV5></span>
<span class="preprocessor">#include <QTimer></span>
<span class="preprocessor">#include <QOpenGLTextureBlitter></span>
<span class="keyword">class</span> <span class="type"><a href="qwaylandwlshell.html">QWaylandWlShell</a></span>;
<span class="keyword">class</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span>;
<span class="keyword">class</span> QWaylandXdgShellV5;
<span class="keyword">class</span> <span class="type">QOpenGLTexture</span>;
<span class="keyword">class</span> Compositor;
<span class="keyword">class</span> View : <span class="keyword">public</span> <span class="type"><a href="qwaylandview.html">QWaylandView</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
View(Compositor <span class="operator">*</span>compositor);
<span class="type">QOpenGLTexture</span> <span class="operator">*</span>getTexture();
<span class="type">QOpenGLTextureBlitter</span><span class="operator">::</span>Origin textureOrigin() <span class="keyword">const</span>;
<span class="type">QPointF</span> position() <span class="keyword">const</span> { <span class="keyword">return</span> m_position; }
<span class="type">void</span> setPosition(<span class="keyword">const</span> <span class="type">QPointF</span> <span class="operator">&</span>pos) { m_position <span class="operator">=</span> pos; }
<span class="type">QSize</span> size() <span class="keyword">const</span>;
bool isCursor() <span class="keyword">const</span>;
bool hasShell() <span class="keyword">const</span> { <span class="keyword">return</span> m_wlShellSurface; }
<span class="type">void</span> setParentView(View <span class="operator">*</span>parent) { m_parentView <span class="operator">=</span> parent; }
View <span class="operator">*</span>parentView() <span class="keyword">const</span> { <span class="keyword">return</span> m_parentView; }
<span class="type">QPointF</span> parentPosition() <span class="keyword">const</span> { <span class="keyword">return</span> m_parentView <span class="operator">?</span> (m_parentView<span class="operator">-</span><span class="operator">></span>position() <span class="operator">+</span> m_parentView<span class="operator">-</span><span class="operator">></span>parentPosition()) : <span class="type">QPointF</span>(); }
<span class="type">QSize</span> windowSize() { <span class="keyword">return</span> m_xdgSurface <span class="operator">?</span> m_xdgSurface<span class="operator">-</span><span class="operator">></span>windowGeometry()<span class="operator">.</span>size() : surface() <span class="operator">?</span> surface()<span class="operator">-</span><span class="operator">></span>size() : m_size; }
<span class="type">QPoint</span> offset() <span class="keyword">const</span> { <span class="keyword">return</span> m_offset; }
<span class="type">qreal</span> animationFactor() <span class="keyword">const</span> {<span class="keyword">return</span> m_animationFactor; }
<span class="type">void</span> setAnimationFactor(<span class="type">qreal</span> f) {m_animationFactor <span class="operator">=</span> f; }
<span class="keyword">signals</span>:
<span class="type">void</span> animationDone();
<span class="keyword">protected</span>:
<span class="type">void</span> timerEvent(<span class="type">QTimerEvent</span> <span class="operator">*</span>event) override;
<span class="keyword">private</span>:
<span class="keyword">friend</span> <span class="keyword">class</span> Compositor;
Compositor <span class="operator">*</span>m_compositor <span class="operator">=</span> nullptr;
GLenum m_textureTarget <span class="operator">=</span> GL_TEXTURE_2D;
<span class="type">QOpenGLTexture</span> <span class="operator">*</span>m_texture <span class="operator">=</span> nullptr;
<span class="type">QOpenGLTextureBlitter</span><span class="operator">::</span>Origin m_origin;
<span class="type">QPointF</span> m_position;
<span class="type">QSize</span> m_size;
<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>m_wlShellSurface <span class="operator">=</span> nullptr;
QWaylandXdgSurfaceV5 <span class="operator">*</span>m_xdgSurface <span class="operator">=</span> nullptr;
QWaylandXdgPopupV5 <span class="operator">*</span>m_xdgPopup <span class="operator">=</span> nullptr;
View <span class="operator">*</span>m_parentView <span class="operator">=</span> nullptr;
<span class="type">QPoint</span> m_offset;
<span class="type">qreal</span> m_animationFactor <span class="operator">=</span> <span class="number">1.0</span>;
<span class="type">QBasicTimer</span> m_animationTimer;
bool m_animationCountUp;
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> onXdgSetMaximized();
<span class="type">void</span> onXdgUnsetMaximized();
<span class="type">void</span> onXdgSetFullscreen(<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span> <span class="operator">*</span>output);
<span class="type">void</span> onXdgUnsetFullscreen();
<span class="type">void</span> onOffsetForNextFrame(<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>offset);
<span class="type">void</span> startAnimation(bool countUp);
<span class="type">void</span> cancelAnimation();
};
<span class="keyword">class</span> Compositor : <span class="keyword">public</span> <span class="type"><a href="qwaylandcompositor.html">QWaylandCompositor</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
Compositor(<span class="type">QWindow</span> <span class="operator">*</span>window);
<span class="operator">~</span>Compositor() override;
<span class="type">void</span> create() override;
<span class="type">void</span> startRender();
<span class="type">void</span> endRender();
<span class="type">QList</span><span class="operator"><</span>View<span class="operator">*</span><span class="operator">></span> views() <span class="keyword">const</span> { <span class="keyword">return</span> m_views; }
<span class="type">void</span> raise(View <span class="operator">*</span>view);
<span class="type">void</span> handleMouseEvent(<span class="type"><a href="qwaylandview.html">QWaylandView</a></span> <span class="operator">*</span>target<span class="operator">,</span> <span class="type">QMouseEvent</span> <span class="operator">*</span>me);
<span class="type">void</span> handleResize(View <span class="operator">*</span>target<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QSize</span> <span class="operator">&</span>initialSize<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>delta<span class="operator">,</span> <span class="type">int</span> edge);
<span class="type">void</span> handleDrag(View <span class="operator">*</span>target<span class="operator">,</span> <span class="type">QMouseEvent</span> <span class="operator">*</span>me);
<span class="type"><a href="qwaylandclient.html">QWaylandClient</a></span> <span class="operator">*</span>popupClient() <span class="keyword">const</span>;
<span class="type">void</span> closePopups();
<span class="keyword">protected</span>:
<span class="type">void</span> adjustCursorSurface(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface<span class="operator">,</span> <span class="type">int</span> hotspotX<span class="operator">,</span> <span class="type">int</span> hotspotY);
<span class="keyword">signals</span>:
<span class="type">void</span> startMove();
<span class="type">void</span> startResize(<span class="type">int</span> edge<span class="operator">,</span> bool anchored);
<span class="type">void</span> dragStarted(View <span class="operator">*</span>dragIcon);
<span class="type">void</span> frameOffset(<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>offset);
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> triggerRender();
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> surfaceHasContentChanged();
<span class="type">void</span> surfaceDestroyed();
<span class="type">void</span> viewSurfaceDestroyed();
<span class="type">void</span> onStartMove();
<span class="type">void</span> onWlStartResize(<span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span>seat<span class="operator">,</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>ResizeEdge edges);
<span class="type">void</span> onXdgStartResize(<span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span>seat<span class="operator">,</span> QWaylandXdgSurfaceV5<span class="operator">::</span>ResizeEdge edges);
<span class="type">void</span> startDrag();
<span class="type">void</span> onSurfaceCreated(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface);
<span class="type">void</span> onWlShellSurfaceCreated(<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>wlShellSurface);
<span class="type">void</span> onXdgSurfaceCreated(QWaylandXdgSurfaceV5 <span class="operator">*</span>xdgSurface);
<span class="type">void</span> onXdgPopupRequested(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface<span class="operator">,</span> <span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>parent<span class="operator">,</span> <span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span>seat<span class="operator">,</span>
<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>position<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QWaylandResource</span> <span class="operator">&</span>resource);
<span class="type">void</span> onSetTransient(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>parentSurface<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>relativeToParent<span class="operator">,</span> bool inactive);
<span class="type">void</span> onSetPopup(<span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span>seat<span class="operator">,</span> <span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>parent<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>relativeToParent);
<span class="type">void</span> onSubsurfaceChanged(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>child<span class="operator">,</span> <span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>parent);
<span class="type">void</span> onSubsurfacePositionChanged(<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>position);
<span class="type">void</span> updateCursor();
<span class="type">void</span> viewAnimationDone();
<span class="keyword">private</span>:
View <span class="operator">*</span>findView(<span class="keyword">const</span> <span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>s) <span class="keyword">const</span>;
<span class="type">QWindow</span> <span class="operator">*</span>m_window <span class="operator">=</span> nullptr;
<span class="type">QList</span><span class="operator"><</span>View<span class="operator">*</span><span class="operator">></span> m_views;
<span class="type"><a href="qwaylandwlshell.html">QWaylandWlShell</a></span> <span class="operator">*</span>m_wlShell <span class="operator">=</span> nullptr;
QWaylandXdgShellV5 <span class="operator">*</span>m_xdgShell <span class="operator">=</span> nullptr;
<span class="type"><a href="qwaylandview.html">QWaylandView</a></span> m_cursorView;
<span class="type">int</span> m_cursorHotspotX;
<span class="type">int</span> m_cursorHotspotY;
};
<span class="preprocessor">#endif // WINDOWCOMPOSITOR_H</span>
</pre>
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Documentation contributions included herein are the copyrights of
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