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<h1 class="title">compositor.cpp Example File</h1>
<span class="subtitle">qwindow-compositor/compositor.cpp</span>
<!-- $$$qwindow-compositor/compositor.cpp-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
** 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "compositor.h"</span>
<span class="preprocessor">#include <QMouseEvent></span>
<span class="preprocessor">#include <QKeyEvent></span>
<span class="preprocessor">#include <QTouchEvent></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandXdgShellV5></span>
<span class="preprocessor">#include <QtWaylandCompositor/QWaylandWlShellSurface></span>
<span class="preprocessor">#include <QtWaylandCompositor/qwaylandseat.h></span>
<span class="preprocessor">#include <QtWaylandCompositor/qwaylanddrag.h></span>
<span class="preprocessor">#include <QDebug></span>
<span class="preprocessor">#include <QOpenGLContext></span>
<span class="preprocessor">#ifndef GL_TEXTURE_EXTERNAL_OES</span>
<span class="preprocessor">#define GL_TEXTURE_EXTERNAL_OES 0x8D65</span>
<span class="preprocessor">#endif</span>
View<span class="operator">::</span>View(Compositor <span class="operator">*</span>compositor)
: m_compositor(compositor)
{}
<span class="type">QOpenGLTexture</span> <span class="operator">*</span>View<span class="operator">::</span>getTexture()
{
bool newContent <span class="operator">=</span> advance();
<span class="type"><a href="qwaylandbufferref.html">QWaylandBufferRef</a></span> buf <span class="operator">=</span> currentBuffer();
<span class="keyword">if</span> (<span class="operator">!</span>buf<span class="operator">.</span>hasContent())
m_texture <span class="operator">=</span> nullptr;
<span class="keyword">if</span> (newContent) {
m_texture <span class="operator">=</span> buf<span class="operator">.</span>toOpenGLTexture();
<span class="keyword">if</span> (surface()) {
m_size <span class="operator">=</span> surface()<span class="operator">-</span><span class="operator">></span>size();
m_origin <span class="operator">=</span> buf<span class="operator">.</span>origin() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>OriginTopLeft
<span class="operator">?</span> <span class="type">QOpenGLTextureBlitter</span><span class="operator">::</span>OriginTopLeft
: <span class="type">QOpenGLTextureBlitter</span><span class="operator">::</span>OriginBottomLeft;
}
}
<span class="keyword">return</span> m_texture;
}
<span class="type">QOpenGLTextureBlitter</span><span class="operator">::</span>Origin View<span class="operator">::</span>textureOrigin() <span class="keyword">const</span>
{
<span class="keyword">return</span> m_origin;
}
<span class="type">QSize</span> View<span class="operator">::</span>size() <span class="keyword">const</span>
{
<span class="keyword">return</span> surface() <span class="operator">?</span> surface()<span class="operator">-</span><span class="operator">></span>size() : m_size;
}
bool View<span class="operator">::</span>isCursor() <span class="keyword">const</span>
{
<span class="keyword">return</span> surface() <span class="operator">&</span><span class="operator">&</span> surface()<span class="operator">-</span><span class="operator">></span>isCursorSurface();
}
<span class="type">void</span> View<span class="operator">::</span>onXdgSetMaximized()
{
m_xdgSurface<span class="operator">-</span><span class="operator">></span>sendMaximized(output()<span class="operator">-</span><span class="operator">></span>geometry()<span class="operator">.</span>size());
<span class="comment">// An improvement here, would have been to wait for the commit after the ack_configure for the</span>
<span class="comment">// request above before moving the window. This would have prevented the window from being</span>
<span class="comment">// moved until the contents of the window had actually updated. This improvement is left as an</span>
<span class="comment">// exercise for the reader.</span>
setPosition(<span class="type">QPoint</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>));
}
<span class="type">void</span> View<span class="operator">::</span>onXdgUnsetMaximized()
{
m_xdgSurface<span class="operator">-</span><span class="operator">></span>sendUnmaximized();
}
<span class="type">void</span> View<span class="operator">::</span>onXdgSetFullscreen(<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span><span class="operator">*</span> clientPreferredOutput)
{
<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span> <span class="operator">*</span>outputToFullscreen <span class="operator">=</span> clientPreferredOutput
<span class="operator">?</span> clientPreferredOutput
: output();
m_xdgSurface<span class="operator">-</span><span class="operator">></span>sendFullscreen(outputToFullscreen<span class="operator">-</span><span class="operator">></span>geometry()<span class="operator">.</span>size());
<span class="comment">// An improvement here, would have been to wait for the commit after the ack_configure for the</span>
<span class="comment">// request above before moving the window. This would have prevented the window from being</span>
<span class="comment">// moved until the contents of the window had actually updated. This improvement is left as an</span>
<span class="comment">// exercise for the reader.</span>
setPosition(outputToFullscreen<span class="operator">-</span><span class="operator">></span>position());
}
<span class="type">void</span> View<span class="operator">::</span>onOffsetForNextFrame(<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>offset)
{
m_offset <span class="operator">=</span> offset;
setPosition(position() <span class="operator">+</span> offset);
}
<span class="type">void</span> View<span class="operator">::</span>timerEvent(<span class="type">QTimerEvent</span> <span class="operator">*</span>event)
{
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">></span>timerId() <span class="operator">!</span><span class="operator">=</span> m_animationTimer<span class="operator">.</span>timerId())
<span class="keyword">return</span>;
m_compositor<span class="operator">-</span><span class="operator">></span>triggerRender();
<span class="keyword">if</span> (m_animationCountUp) {
m_animationFactor <span class="operator">+</span><span class="operator">=</span> <span class="operator">.</span><span class="number">08</span>;
<span class="keyword">if</span> (m_animationFactor <span class="operator">></span> <span class="number">1.0</span>) {
m_animationFactor <span class="operator">=</span> <span class="number">1.0</span>;
m_animationTimer<span class="operator">.</span>stop();
<span class="keyword">emit</span> animationDone();
}
} <span class="keyword">else</span> {
m_animationFactor <span class="operator">-</span><span class="operator">=</span> <span class="operator">.</span><span class="number">08</span>;
<span class="keyword">if</span> (m_animationFactor <span class="operator"><</span> <span class="number">0.01</span>) {
m_animationFactor <span class="operator">=</span> <span class="number">0.01</span>;
m_animationTimer<span class="operator">.</span>stop();
<span class="keyword">emit</span> animationDone();
}
}
}
<span class="type">void</span> View<span class="operator">::</span>startAnimation(bool countUp)
{
m_animationCountUp <span class="operator">=</span> countUp;
m_animationFactor <span class="operator">=</span> countUp <span class="operator">?</span> <span class="operator">.</span><span class="number">1</span> : <span class="number">1.0</span>;
m_animationTimer<span class="operator">.</span>start(<span class="number">20</span><span class="operator">,</span> <span class="keyword">this</span>);
}
<span class="type">void</span> View<span class="operator">::</span>cancelAnimation()
{
m_animationFactor <span class="operator">=</span> <span class="number">1.0</span>;
m_animationTimer<span class="operator">.</span>stop();
}
<span class="type">void</span> View<span class="operator">::</span>onXdgUnsetFullscreen()
{
onXdgUnsetMaximized();
}
Compositor<span class="operator">::</span>Compositor(<span class="type">QWindow</span> <span class="operator">*</span>window)
: m_window(window)
<span class="operator">,</span> m_wlShell(<span class="keyword">new</span> <span class="type"><a href="qwaylandwlshell.html">QWaylandWlShell</a></span>(<span class="keyword">this</span>))
<span class="operator">,</span> m_xdgShell(<span class="keyword">new</span> QWaylandXdgShellV5(<span class="keyword">this</span>))
{
connect(m_wlShell<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandwlshell.html">QWaylandWlShell</a></span><span class="operator">::</span>wlShellSurfaceCreated<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onWlShellSurfaceCreated);
connect(m_xdgShell<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgShellV5<span class="operator">::</span>xdgSurfaceCreated<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onXdgSurfaceCreated);
connect(m_xdgShell<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgShellV5<span class="operator">::</span>xdgPopupRequested<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onXdgPopupRequested);
}
Compositor<span class="operator">::</span><span class="operator">~</span>Compositor()
{
}
<span class="type">void</span> Compositor<span class="operator">::</span>create()
{
<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span> <span class="operator">*</span>output <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span>(<span class="keyword">this</span><span class="operator">,</span> m_window);
<span class="type"><a href="qwaylandoutputmode.html">QWaylandOutputMode</a></span> mode(<span class="type">QSize</span>(<span class="number">800</span><span class="operator">,</span> <span class="number">600</span>)<span class="operator">,</span> <span class="number">60000</span>);
output<span class="operator">-</span><span class="operator">></span>addMode(mode<span class="operator">,</span> <span class="keyword">true</span>);
<span class="type"><a href="qwaylandcompositor.html">QWaylandCompositor</a></span><span class="operator">::</span>create();
output<span class="operator">-</span><span class="operator">></span>setCurrentMode(mode);
connect(<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandcompositor.html">QWaylandCompositor</a></span><span class="operator">::</span>surfaceCreated<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onSurfaceCreated);
connect(defaultSeat()<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span><span class="operator">::</span>cursorSurfaceRequest<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>adjustCursorSurface);
connect(defaultSeat()<span class="operator">-</span><span class="operator">></span>drag()<span class="operator">,</span> <span class="operator">&</span><span class="type">QWaylandDrag</span><span class="operator">::</span>dragStarted<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>startDrag);
connect(<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandcompositor.html">QWaylandCompositor</a></span><span class="operator">::</span>subsurfaceChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onSubsurfaceChanged);
}
<span class="type">void</span> Compositor<span class="operator">::</span>onSurfaceCreated(<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface)
{
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>surfaceDestroyed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>surfaceDestroyed);
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>hasContentChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>surfaceHasContentChanged);
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>redraw<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>triggerRender);
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>subsurfacePositionChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onSubsurfacePositionChanged);
View <span class="operator">*</span>view <span class="operator">=</span> <span class="keyword">new</span> View(<span class="keyword">this</span>);
view<span class="operator">-</span><span class="operator">></span>setSurface(surface);
view<span class="operator">-</span><span class="operator">></span>setOutput(outputFor(m_window));
m_views <span class="operator"><</span><span class="operator"><</span> view;
connect(view<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandview.html">QWaylandView</a></span><span class="operator">::</span>surfaceDestroyed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>viewSurfaceDestroyed);
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>offsetForNextFrame<span class="operator">,</span> view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>onOffsetForNextFrame);
}
<span class="type">void</span> Compositor<span class="operator">::</span>surfaceHasContentChanged()
{
<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
<span class="keyword">if</span> (surface<span class="operator">-</span><span class="operator">></span>hasContent()) {
<span class="keyword">if</span> (surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>role()
<span class="operator">|</span><span class="operator">|</span> surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> QWaylandXdgSurfaceV5<span class="operator">::</span>role()
<span class="operator">|</span><span class="operator">|</span> surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> QWaylandXdgPopupV5<span class="operator">::</span>role()) {
defaultSeat()<span class="operator">-</span><span class="operator">></span>setKeyboardFocus(surface);
}
}
triggerRender();
}
<span class="type">void</span> Compositor<span class="operator">::</span>surfaceDestroyed()
{
triggerRender();
}
<span class="type">void</span> Compositor<span class="operator">::</span>viewSurfaceDestroyed()
{
View <span class="operator">*</span>view <span class="operator">=</span> qobject_cast<span class="operator"><</span>View<span class="operator">*</span><span class="operator">></span>(sender());
view<span class="operator">-</span><span class="operator">></span>setBufferLocked(<span class="keyword">true</span>);
view<span class="operator">-</span><span class="operator">></span>startAnimation(<span class="keyword">false</span>);
connect(view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>animationDone<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>viewAnimationDone);
}
<span class="type">void</span> Compositor<span class="operator">::</span>viewAnimationDone()
{
View <span class="operator">*</span>view <span class="operator">=</span> qobject_cast<span class="operator"><</span>View<span class="operator">*</span><span class="operator">></span>(sender());
m_views<span class="operator">.</span>removeAll(view);
<span class="keyword">delete</span> view;
}
View <span class="operator">*</span> Compositor<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>
{
Q_FOREACH (View<span class="operator">*</span> view<span class="operator">,</span> m_views) {
<span class="keyword">if</span> (view<span class="operator">-</span><span class="operator">></span>surface() <span class="operator">=</span><span class="operator">=</span> s)
<span class="keyword">return</span> view;
}
<span class="keyword">return</span> nullptr;
}
<span class="type">void</span> Compositor<span class="operator">::</span>onWlShellSurfaceCreated(<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>wlShellSurface)
{
connect(wlShellSurface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>startMove<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onStartMove);
connect(wlShellSurface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>startResize<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onWlStartResize);
connect(wlShellSurface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>setTransient<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onSetTransient);
connect(wlShellSurface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>setPopup<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onSetPopup);
View <span class="operator">*</span>view <span class="operator">=</span> findView(wlShellSurface<span class="operator">-</span><span class="operator">></span>surface());
Q_ASSERT(view);
view<span class="operator">-</span><span class="operator">></span>m_wlShellSurface <span class="operator">=</span> wlShellSurface;
view<span class="operator">-</span><span class="operator">></span>startAnimation(<span class="keyword">true</span>);
}
<span class="type">void</span> Compositor<span class="operator">::</span>onXdgSurfaceCreated(QWaylandXdgSurfaceV5 <span class="operator">*</span>xdgSurface)
{
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>startMove<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onStartMove);
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>startResize<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>onXdgStartResize);
View <span class="operator">*</span>view <span class="operator">=</span> findView(xdgSurface<span class="operator">-</span><span class="operator">></span>surface());
Q_ASSERT(view);
view<span class="operator">-</span><span class="operator">></span>m_xdgSurface <span class="operator">=</span> xdgSurface;
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>setMaximized<span class="operator">,</span> view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>onXdgSetMaximized);
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>setFullscreen<span class="operator">,</span> view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>onXdgSetFullscreen);
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>unsetMaximized<span class="operator">,</span> view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>onXdgUnsetMaximized);
connect(xdgSurface<span class="operator">,</span> <span class="operator">&</span>QWaylandXdgSurfaceV5<span class="operator">::</span>unsetFullscreen<span class="operator">,</span> view<span class="operator">,</span> <span class="operator">&</span>View<span class="operator">::</span>onXdgUnsetFullscreen);
view<span class="operator">-</span><span class="operator">></span>startAnimation(<span class="keyword">true</span>);
}
<span class="type">void</span> Compositor<span class="operator">::</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)
{
Q_UNUSED(seat);
QWaylandXdgPopupV5 <span class="operator">*</span>xdgPopup <span class="operator">=</span> <span class="keyword">new</span> QWaylandXdgPopupV5(m_xdgShell<span class="operator">,</span> surface<span class="operator">,</span> parent<span class="operator">,</span> position<span class="operator">,</span> resource);
View <span class="operator">*</span>view <span class="operator">=</span> findView(surface);
Q_ASSERT(view);
View <span class="operator">*</span>parentView <span class="operator">=</span> findView(parent);
Q_ASSERT(parentView);
view<span class="operator">-</span><span class="operator">></span>setPosition(parentView<span class="operator">-</span><span class="operator">></span>position() <span class="operator">+</span> position);
view<span class="operator">-</span><span class="operator">></span>m_xdgPopup <span class="operator">=</span> xdgPopup;
}
<span class="type">void</span> Compositor<span class="operator">::</span>onStartMove()
{
closePopups();
<span class="keyword">emit</span> startMove();
}
<span class="type">void</span> Compositor<span class="operator">::</span>onWlStartResize(<span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span><span class="operator">,</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>ResizeEdge edges)
{
closePopups();
<span class="keyword">emit</span> startResize(<span class="type">int</span>(edges)<span class="operator">,</span> <span class="keyword">false</span>);
}
<span class="type">void</span> Compositor<span class="operator">::</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)
{
Q_UNUSED(seat);
<span class="keyword">emit</span> startResize(<span class="type">int</span>(edges)<span class="operator">,</span> <span class="keyword">true</span>);
}
<span class="type">void</span> Compositor<span class="operator">::</span>onSetTransient(<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="operator">,</span> bool inactive)
{
Q_UNUSED(inactive);
<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>wlShellSurface <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">*</span><span class="operator">></span>(sender());
View <span class="operator">*</span>view <span class="operator">=</span> findView(wlShellSurface<span class="operator">-</span><span class="operator">></span>surface());
<span class="keyword">if</span> (view) {
raise(view);
View <span class="operator">*</span>parentView <span class="operator">=</span> findView(parent);
<span class="keyword">if</span> (parentView)
view<span class="operator">-</span><span class="operator">></span>setPosition(parentView<span class="operator">-</span><span class="operator">></span>position() <span class="operator">+</span> relativeToParent);
}
}
<span class="type">void</span> Compositor<span class="operator">::</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)
{
Q_UNUSED(seat);
<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>surface <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">*</span><span class="operator">></span>(sender());
View <span class="operator">*</span>view <span class="operator">=</span> findView(surface<span class="operator">-</span><span class="operator">></span>surface());
<span class="keyword">if</span> (view) {
raise(view);
View <span class="operator">*</span>parentView <span class="operator">=</span> findView(parent);
<span class="keyword">if</span> (parentView)
view<span class="operator">-</span><span class="operator">></span>setPosition(parentView<span class="operator">-</span><span class="operator">></span>position() <span class="operator">+</span> relativeToParent);
view<span class="operator">-</span><span class="operator">></span>cancelAnimation();
}
}
<span class="type">void</span> Compositor<span class="operator">::</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)
{
View <span class="operator">*</span>view <span class="operator">=</span> findView(child);
View <span class="operator">*</span>parentView <span class="operator">=</span> findView(parent);
view<span class="operator">-</span><span class="operator">></span>setParentView(parentView);
}
<span class="type">void</span> Compositor<span class="operator">::</span>onSubsurfacePositionChanged(<span class="keyword">const</span> <span class="type">QPoint</span> <span class="operator">&</span>position)
{
<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">*</span><span class="operator">></span>(sender());
<span class="keyword">if</span> (<span class="operator">!</span>surface)
<span class="keyword">return</span>;
View <span class="operator">*</span>view <span class="operator">=</span> findView(surface);
view<span class="operator">-</span><span class="operator">></span>setPosition(position);
triggerRender();
}
<span class="type">void</span> Compositor<span class="operator">::</span>triggerRender()
{
m_window<span class="operator">-</span><span class="operator">></span>requestUpdate();
}
<span class="type">void</span> Compositor<span class="operator">::</span>startRender()
{
<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span> <span class="operator">*</span>out <span class="operator">=</span> defaultOutput();
<span class="keyword">if</span> (out)
out<span class="operator">-</span><span class="operator">></span>frameStarted();
}
<span class="type">void</span> Compositor<span class="operator">::</span>endRender()
{
<span class="type"><a href="qwaylandoutput.html">QWaylandOutput</a></span> <span class="operator">*</span>out <span class="operator">=</span> defaultOutput();
<span class="keyword">if</span> (out)
out<span class="operator">-</span><span class="operator">></span>sendFrameCallbacks();
}
<span class="type">void</span> Compositor<span class="operator">::</span>updateCursor()
{
m_cursorView<span class="operator">.</span>advance();
<span class="type">QImage</span> image <span class="operator">=</span> m_cursorView<span class="operator">.</span>currentBuffer()<span class="operator">.</span>image();
<span class="keyword">if</span> (<span class="operator">!</span>image<span class="operator">.</span>isNull())
m_window<span class="operator">-</span><span class="operator">></span>setCursor(<span class="type">QCursor</span>(<span class="type">QPixmap</span><span class="operator">::</span>fromImage(image)<span class="operator">,</span> m_cursorHotspotX<span class="operator">,</span> m_cursorHotspotY));
}
<span class="type">void</span> Compositor<span class="operator">::</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">if</span> ((m_cursorView<span class="operator">.</span>surface() <span class="operator">!</span><span class="operator">=</span> surface)) {
<span class="keyword">if</span> (m_cursorView<span class="operator">.</span>surface())
disconnect(m_cursorView<span class="operator">.</span>surface()<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>redraw<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>updateCursor);
<span class="keyword">if</span> (surface)
connect(surface<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span><span class="operator">::</span>redraw<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Compositor<span class="operator">::</span>updateCursor);
}
m_cursorView<span class="operator">.</span>setSurface(surface);
m_cursorHotspotX <span class="operator">=</span> hotspotX;
m_cursorHotspotY <span class="operator">=</span> hotspotY;
<span class="keyword">if</span> (surface <span class="operator">&</span><span class="operator">&</span> surface<span class="operator">-</span><span class="operator">></span>hasContent())
updateCursor();
}
<span class="type">void</span> Compositor<span class="operator">::</span>closePopups()
{
m_wlShell<span class="operator">-</span><span class="operator">></span>closeAllPopups();
m_xdgShell<span class="operator">-</span><span class="operator">></span>closeAllPopups();
}
<span class="type">void</span> Compositor<span class="operator">::</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="keyword">auto</span> popClient <span class="operator">=</span> popupClient();
<span class="keyword">if</span> (target <span class="operator">&</span><span class="operator">&</span> me<span class="operator">-</span><span class="operator">></span>type() <span class="operator">=</span><span class="operator">=</span> <span class="type">QEvent</span><span class="operator">::</span>MouseButtonPress
<span class="operator">&</span><span class="operator">&</span> popClient <span class="operator">&</span><span class="operator">&</span> popClient <span class="operator">!</span><span class="operator">=</span> target<span class="operator">-</span><span class="operator">></span>surface()<span class="operator">-</span><span class="operator">></span>client()) {
closePopups();
}
<span class="type"><a href="qwaylandseat.html">QWaylandSeat</a></span> <span class="operator">*</span>seat <span class="operator">=</span> defaultSeat();
<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface <span class="operator">=</span> target <span class="operator">?</span> target<span class="operator">-</span><span class="operator">></span>surface() : nullptr;
<span class="keyword">switch</span> (me<span class="operator">-</span><span class="operator">></span>type()) {
<span class="keyword">case</span> <span class="type">QEvent</span><span class="operator">::</span>MouseButtonPress:
seat<span class="operator">-</span><span class="operator">></span>sendMousePressEvent(me<span class="operator">-</span><span class="operator">></span>button());
<span class="keyword">if</span> (surface <span class="operator">!</span><span class="operator">=</span> seat<span class="operator">-</span><span class="operator">></span>keyboardFocus()) {
<span class="keyword">if</span> (surface <span class="operator">=</span><span class="operator">=</span> nullptr
<span class="operator">|</span><span class="operator">|</span> surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>role()
<span class="operator">|</span><span class="operator">|</span> surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> QWaylandXdgSurfaceV5<span class="operator">::</span>role()
<span class="operator">|</span><span class="operator">|</span> surface<span class="operator">-</span><span class="operator">></span>role() <span class="operator">=</span><span class="operator">=</span> QWaylandXdgPopupV5<span class="operator">::</span>role()) {
seat<span class="operator">-</span><span class="operator">></span>setKeyboardFocus(surface);
}
}
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type">QEvent</span><span class="operator">::</span>MouseButtonRelease:
seat<span class="operator">-</span><span class="operator">></span>sendMouseReleaseEvent(me<span class="operator">-</span><span class="operator">></span>button());
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type">QEvent</span><span class="operator">::</span>MouseMove:
seat<span class="operator">-</span><span class="operator">></span>sendMouseMoveEvent(target<span class="operator">,</span> me<span class="operator">-</span><span class="operator">></span>localPos()<span class="operator">,</span> me<span class="operator">-</span><span class="operator">></span>globalPos());
<span class="keyword">default</span>:
<span class="keyword">break</span>;
}
}
<span class="type">void</span> Compositor<span class="operator">::</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"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span> <span class="operator">*</span>wlShellSurface <span class="operator">=</span> target<span class="operator">-</span><span class="operator">></span>m_wlShellSurface;
<span class="keyword">if</span> (wlShellSurface) {
<span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>ResizeEdge edges <span class="operator">=</span> <span class="type"><a href="qwaylandwlshellsurface.html">QWaylandWlShellSurface</a></span><span class="operator">::</span>ResizeEdge(edge);
<span class="type">QSize</span> newSize <span class="operator">=</span> wlShellSurface<span class="operator">-</span><span class="operator">></span>sizeForResize(initialSize<span class="operator">,</span> delta<span class="operator">,</span> edges);
wlShellSurface<span class="operator">-</span><span class="operator">></span>sendConfigure(newSize<span class="operator">,</span> edges);
}
QWaylandXdgSurfaceV5 <span class="operator">*</span>xdgSurface <span class="operator">=</span> target<span class="operator">-</span><span class="operator">></span>m_xdgSurface;
<span class="keyword">if</span> (xdgSurface) {
QWaylandXdgSurfaceV5<span class="operator">::</span>ResizeEdge edges <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>QWaylandXdgSurfaceV5<span class="operator">::</span>ResizeEdge<span class="operator">></span>(edge);
<span class="type">QSize</span> newSize <span class="operator">=</span> xdgSurface<span class="operator">-</span><span class="operator">></span>sizeForResize(initialSize<span class="operator">,</span> delta<span class="operator">,</span> edges);
xdgSurface<span class="operator">-</span><span class="operator">></span>sendResizing(newSize);
}
}
<span class="type">void</span> Compositor<span class="operator">::</span>startDrag()
{
<span class="type">QWaylandDrag</span> <span class="operator">*</span>currentDrag <span class="operator">=</span> defaultSeat()<span class="operator">-</span><span class="operator">></span>drag();
Q_ASSERT(currentDrag);
View <span class="operator">*</span>iconView <span class="operator">=</span> findView(currentDrag<span class="operator">-</span><span class="operator">></span>icon());
iconView<span class="operator">-</span><span class="operator">></span>setPosition(m_window<span class="operator">-</span><span class="operator">></span>mapFromGlobal(<span class="type">QCursor</span><span class="operator">::</span>pos()));
<span class="keyword">emit</span> dragStarted(iconView);
}
<span class="type">void</span> Compositor<span class="operator">::</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">QPointF</span> pos <span class="operator">=</span> me<span class="operator">-</span><span class="operator">></span>localPos();
<span class="type"><a href="qwaylandsurface.html">QWaylandSurface</a></span> <span class="operator">*</span>surface <span class="operator">=</span> nullptr;
<span class="keyword">if</span> (target) {
pos <span class="operator">-</span><span class="operator">=</span> target<span class="operator">-</span><span class="operator">></span>position();
surface <span class="operator">=</span> target<span class="operator">-</span><span class="operator">></span>surface();
}
<span class="type">QWaylandDrag</span> <span class="operator">*</span>currentDrag <span class="operator">=</span> defaultSeat()<span class="operator">-</span><span class="operator">></span>drag();
currentDrag<span class="operator">-</span><span class="operator">></span>dragMove(surface<span class="operator">,</span> pos);
<span class="keyword">if</span> (me<span class="operator">-</span><span class="operator">></span>buttons() <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>NoButton) {
m_views<span class="operator">.</span>removeOne(findView(currentDrag<span class="operator">-</span><span class="operator">></span>icon()));
currentDrag<span class="operator">-</span><span class="operator">></span>drop();
}
}
<span class="type"><a href="qwaylandclient.html">QWaylandClient</a></span> <span class="operator">*</span>Compositor<span class="operator">::</span>popupClient() <span class="keyword">const</span>
{
<span class="keyword">auto</span> client <span class="operator">=</span> m_wlShell<span class="operator">-</span><span class="operator">></span>popupClient();
<span class="keyword">return</span> client <span class="operator">?</span> client : m_xdgShell<span class="operator">-</span><span class="operator">></span>popupClient();
}
<span class="comment">// We only have a flat list of views, plus pointers from child to parent,</span>
<span class="comment">// so maintaining a stacking order gets a bit complex. A better data</span>
<span class="comment">// structure is left as an exercise for the reader.</span>
<span class="keyword">static</span> <span class="type">int</span> findEndOfChildTree(<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span>View<span class="operator">*</span><span class="operator">></span> <span class="operator">&</span>list<span class="operator">,</span> <span class="type">int</span> index)
{
<span class="type">int</span> n <span class="operator">=</span> list<span class="operator">.</span>count();
View <span class="operator">*</span>parent <span class="operator">=</span> list<span class="operator">.</span>at(index);
<span class="keyword">while</span> (index <span class="operator">+</span> <span class="number">1</span> <span class="operator"><</span> n) {
<span class="keyword">if</span> (list<span class="operator">.</span>at(index<span class="operator">+</span><span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>parentView() <span class="operator">!</span><span class="operator">=</span> parent)
<span class="keyword">break</span>;
index <span class="operator">=</span> findEndOfChildTree(list<span class="operator">,</span> index <span class="operator">+</span> <span class="number">1</span>);
}
<span class="keyword">return</span> index;
}
<span class="type">void</span> Compositor<span class="operator">::</span>raise(View <span class="operator">*</span>view)
{
<span class="type">int</span> startPos <span class="operator">=</span> m_views<span class="operator">.</span>indexOf(view);
<span class="type">int</span> endPos <span class="operator">=</span> findEndOfChildTree(m_views<span class="operator">,</span> startPos);
<span class="type">int</span> n <span class="operator">=</span> m_views<span class="operator">.</span>count();
<span class="type">int</span> tail <span class="operator">=</span> n <span class="operator">-</span> endPos <span class="operator">-</span> <span class="number">1</span>;
<span class="comment">//bubble sort: move the child tree to the end of the list</span>
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> tail; i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type">int</span> source <span class="operator">=</span> endPos <span class="operator">+</span> <span class="number">1</span> <span class="operator">+</span> i;
<span class="type">int</span> dest <span class="operator">=</span> startPos <span class="operator">+</span> i;
<span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> source; j <span class="operator">></span> dest; j<span class="operator">-</span><span class="operator">-</span>)
m_views<span class="operator">.</span>swap(j<span class="operator">,</span> j<span class="operator">-</span><span class="number">1</span>);
}
}
</pre>
</div>
<!-- @@@qwindow-compositor/compositor.cpp -->
</div>
</div>
</div>
</div>
</div>
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<p>
<acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
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distrib
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Mageia
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7
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i586
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media
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core-updates
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by-pkgid
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f171b9b27b527f95603e88add5c7e1b6
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files
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124
