kwin/effects/cube/cube.cpp
Vlad Zahorodnii 62a7db7028 Use nullptr everywhere
Summary:
Because KWin is a very old project, we use three kinds of null pointer
literals: 0, NULL, and nullptr. Since C++11, it's recommended to use
nullptr keyword.

This change converts all usages of 0 and NULL literal to nullptr. Even
though it breaks git history, we need to do it in order to have consistent
code as well to ease code reviews (it's very tempting for some people to
add unrelated changes to their patches, e.g. converting NULL to nullptr).

Test Plan: Compiles.

Reviewers: #kwin, davidedmundson, romangg

Reviewed By: #kwin, davidedmundson, romangg

Subscribers: romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D23618
2019-09-19 17:48:21 +03:00

1750 lines
73 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2008 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "cube.h"
// KConfigSkeleton
#include "cubeconfig.h"
#include "cube_inside.h"
#include <QAction>
#include <KGlobalAccel>
#include <KLocalizedString>
#include <kwinconfig.h>
#include <QApplication>
#include <QColor>
#include <QElapsedTimer>
#include <QRect>
#include <QEvent>
#include <QFutureWatcher>
#include <QKeyEvent>
#include <QtConcurrentRun>
#include <QVector2D>
#include <QVector3D>
#include <cmath>
#include <kwinglutils.h>
#include <kwinglplatform.h>
namespace KWin
{
CubeEffect::CubeEffect()
: activated(false)
, cube_painting(false)
, keyboard_grab(false)
, painting_desktop(1)
, frontDesktop(0)
, cubeOpacity(1.0)
, opacityDesktopOnly(true)
, displayDesktopName(false)
, desktopNameFrame(nullptr)
, reflection(true)
, desktopChangedWhileRotating(false)
, paintCaps(true)
, wallpaper(nullptr)
, texturedCaps(true)
, capTexture(nullptr)
, reflectionPainting(false)
, activeScreen(0)
, bottomCap(false)
, closeOnMouseRelease(false)
, zoom(0.0)
, zPosition(0.0)
, useForTabBox(false)
, tabBoxMode(false)
, shortcutsRegistered(false)
, mode(Cube)
, useShaders(false)
, cylinderShader(nullptr)
, sphereShader(nullptr)
, zOrderingFactor(0.0f)
, mAddedHeightCoeff1(0.0f)
, mAddedHeightCoeff2(0.0f)
, m_cubeCapBuffer(nullptr)
, m_proxy(this)
, m_cubeAction(new QAction(this))
, m_cylinderAction(new QAction(this))
, m_sphereAction(new QAction(this))
{
initConfig<CubeConfig>();
desktopNameFont.setBold(true);
desktopNameFont.setPointSize(14);
if (effects->compositingType() == OpenGL2Compositing) {
m_reflectionShader = ShaderManager::instance()->generateShaderFromResources(ShaderTrait::MapTexture, QString(), QStringLiteral("cube-reflection.glsl"));
m_capShader = ShaderManager::instance()->generateShaderFromResources(ShaderTrait::MapTexture, QString(), QStringLiteral("cube-cap.glsl"));
} else {
m_reflectionShader = nullptr;
m_capShader = nullptr;
}
m_textureMirrorMatrix.scale(1.0, -1.0, 1.0);
m_textureMirrorMatrix.translate(0.0, -1.0, 0.0);
connect(effects, &EffectsHandler::tabBoxAdded, this, &CubeEffect::slotTabBoxAdded);
connect(effects, &EffectsHandler::tabBoxClosed, this, &CubeEffect::slotTabBoxClosed);
connect(effects, &EffectsHandler::tabBoxUpdated, this, &CubeEffect::slotTabBoxUpdated);
connect(effects, &EffectsHandler::screenAboutToLock, this, [this]() {
// Set active(false) does not release key grabs until the animation completes
// As we know the lockscreen is trying to grab them, release them early
// all other grabs are released in the normal way
setActive(false);
if (keyboard_grab) {
effects->ungrabKeyboard();
keyboard_grab = false;
}
});
reconfigure(ReconfigureAll);
}
bool CubeEffect::supported()
{
return effects->isOpenGLCompositing();
}
void CubeEffect::reconfigure(ReconfigureFlags)
{
CubeConfig::self()->read();
foreach (ElectricBorder border, borderActivate) {
effects->unreserveElectricBorder(border, this);
}
foreach (ElectricBorder border, borderActivateCylinder) {
effects->unreserveElectricBorder(border, this);
}
foreach (ElectricBorder border, borderActivateSphere) {
effects->unreserveElectricBorder(border, this);
}
borderActivate.clear();
borderActivateCylinder.clear();
borderActivateSphere.clear();
QList<int> borderList = QList<int>();
borderList.append(int(ElectricNone));
borderList = CubeConfig::borderActivate();
foreach (int i, borderList) {
borderActivate.append(ElectricBorder(i));
effects->reserveElectricBorder(ElectricBorder(i), this);
}
borderList.clear();
borderList.append(int(ElectricNone));
borderList = CubeConfig::borderActivateCylinder();
foreach (int i, borderList) {
borderActivateCylinder.append(ElectricBorder(i));
effects->reserveElectricBorder(ElectricBorder(i), this);
}
borderList.clear();
borderList.append(int(ElectricNone));
borderList = CubeConfig::borderActivateSphere();
foreach (int i, borderList) {
borderActivateSphere.append(ElectricBorder(i));
effects->reserveElectricBorder(ElectricBorder(i), this);
}
cubeOpacity = (float)CubeConfig::opacity() / 100.0f;
opacityDesktopOnly = CubeConfig::opacityDesktopOnly();
displayDesktopName = CubeConfig::displayDesktopName();
reflection = CubeConfig::reflection();
// TODO: Rename rotationDuration to duration so we
// can use animationTime<CubeConfig>(500).
const int d = CubeConfig::rotationDuration() != 0
? CubeConfig::rotationDuration()
: 500;
rotationDuration = std::chrono::milliseconds(static_cast<int>(animationTime(d)));
backgroundColor = CubeConfig::backgroundColor();
capColor = CubeConfig::capColor();
paintCaps = CubeConfig::caps();
closeOnMouseRelease = CubeConfig::closeOnMouseRelease();
zPosition = CubeConfig::zPosition();
useForTabBox = CubeConfig::tabBox();
invertKeys = CubeConfig::invertKeys();
invertMouse = CubeConfig::invertMouse();
capDeformationFactor = (float)CubeConfig::capDeformation() / 100.0f;
useZOrdering = CubeConfig::zOrdering();
delete wallpaper;
wallpaper = nullptr;
delete capTexture;
capTexture = nullptr;
texturedCaps = CubeConfig::texturedCaps();
timeLine.setEasingCurve(QEasingCurve::InOutSine);
timeLine.setDuration(rotationDuration);
verticalTimeLine.setEasingCurve(QEasingCurve::InOutSine);
verticalTimeLine.setDuration(rotationDuration);
// do not connect the shortcut if we use cylinder or sphere
if (!shortcutsRegistered) {
QAction* cubeAction = m_cubeAction;
cubeAction->setObjectName(QStringLiteral("Cube"));
cubeAction->setText(i18n("Desktop Cube"));
KGlobalAccel::self()->setDefaultShortcut(cubeAction, QList<QKeySequence>() << Qt::CTRL + Qt::Key_F11);
KGlobalAccel::self()->setShortcut(cubeAction, QList<QKeySequence>() << Qt::CTRL + Qt::Key_F11);
effects->registerGlobalShortcut(Qt::CTRL + Qt::Key_F11, cubeAction);
effects->registerPointerShortcut(Qt::ControlModifier | Qt::AltModifier, Qt::LeftButton, cubeAction);
cubeShortcut = KGlobalAccel::self()->shortcut(cubeAction);
QAction* cylinderAction = m_cylinderAction;
cylinderAction->setObjectName(QStringLiteral("Cylinder"));
cylinderAction->setText(i18n("Desktop Cylinder"));
KGlobalAccel::self()->setShortcut(cylinderAction, QList<QKeySequence>());
effects->registerGlobalShortcut(QKeySequence(), cylinderAction);
cylinderShortcut = KGlobalAccel::self()->shortcut(cylinderAction);
QAction* sphereAction = m_sphereAction;
sphereAction->setObjectName(QStringLiteral("Sphere"));
sphereAction->setText(i18n("Desktop Sphere"));
KGlobalAccel::self()->setShortcut(sphereAction, QList<QKeySequence>());
sphereShortcut = KGlobalAccel::self()->shortcut(sphereAction);
effects->registerGlobalShortcut(QKeySequence(), sphereAction);
connect(cubeAction, &QAction::triggered, this, &CubeEffect::toggleCube);
connect(cylinderAction, &QAction::triggered, this, &CubeEffect::toggleCylinder);
connect(sphereAction, &QAction::triggered, this, &CubeEffect::toggleSphere);
connect(KGlobalAccel::self(), &KGlobalAccel::globalShortcutChanged, this, &CubeEffect::globalShortcutChanged);
shortcutsRegistered = true;
}
// set the cap color on the shader
if (m_capShader && m_capShader->isValid()) {
ShaderBinder binder(m_capShader);
m_capShader->setUniform(GLShader::Color, capColor);
}
// touch borders
const QVector<ElectricBorder> relevantBorders{ElectricLeft, ElectricTop, ElectricRight, ElectricBottom};
for (auto e : relevantBorders) {
effects->unregisterTouchBorder(e, m_cubeAction);
effects->unregisterTouchBorder(e, m_sphereAction);
effects->unregisterTouchBorder(e, m_cylinderAction);
}
auto touchEdge = [&relevantBorders] (const QList<int> touchBorders, QAction *action) {
for (int i : touchBorders) {
if (!relevantBorders.contains(ElectricBorder(i))) {
continue;
}
effects->registerTouchBorder(ElectricBorder(i), action);
}
};
touchEdge(CubeConfig::touchBorderActivate(), m_cubeAction);
touchEdge(CubeConfig::touchBorderActivateCylinder(), m_cylinderAction);
touchEdge(CubeConfig::touchBorderActivateSphere(), m_sphereAction);
}
CubeEffect::~CubeEffect()
{
delete wallpaper;
delete capTexture;
delete cylinderShader;
delete sphereShader;
delete desktopNameFrame;
delete m_reflectionShader;
delete m_capShader;
delete m_cubeCapBuffer;
}
QImage CubeEffect::loadCubeCap(const QString &capPath)
{
if (!texturedCaps) {
return QImage();
}
return QImage(capPath);
}
void CubeEffect::slotCubeCapLoaded()
{
QFutureWatcher<QImage> *watcher = dynamic_cast<QFutureWatcher<QImage>*>(sender());
if (!watcher) {
// not invoked from future watcher
return;
}
QImage img = watcher->result();
if (!img.isNull()) {
effects->makeOpenGLContextCurrent();
capTexture = new GLTexture(img);
capTexture->setFilter(GL_LINEAR);
if (!GLPlatform::instance()->isGLES()) {
capTexture->setWrapMode(GL_CLAMP_TO_BORDER);
}
// need to recreate the VBO for the cube cap
delete m_cubeCapBuffer;
m_cubeCapBuffer = nullptr;
effects->addRepaintFull();
}
watcher->deleteLater();
}
QImage CubeEffect::loadWallPaper(const QString &file)
{
return QImage(file);
}
void CubeEffect::slotWallPaperLoaded()
{
QFutureWatcher<QImage> *watcher = dynamic_cast<QFutureWatcher<QImage>*>(sender());
if (!watcher) {
// not invoked from future watcher
return;
}
QImage img = watcher->result();
if (!img.isNull()) {
effects->makeOpenGLContextCurrent();
wallpaper = new GLTexture(img);
effects->addRepaintFull();
}
watcher->deleteLater();
}
bool CubeEffect::loadShader()
{
effects->makeOpenGLContextCurrent();
if (!(GLPlatform::instance()->supports(GLSL) &&
(effects->compositingType() == OpenGL2Compositing)))
return false;
cylinderShader = ShaderManager::instance()->generateShaderFromResources(ShaderTrait::MapTexture | ShaderTrait::AdjustSaturation | ShaderTrait::Modulate, QStringLiteral("cylinder.vert"), QString());
if (!cylinderShader->isValid()) {
qCCritical(KWINEFFECTS) << "The cylinder shader failed to load!";
return false;
} else {
ShaderBinder binder(cylinderShader);
cylinderShader->setUniform("sampler", 0);
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
cylinderShader->setUniform("width", (float)rect.width() * 0.5f);
}
sphereShader = ShaderManager::instance()->generateShaderFromResources(ShaderTrait::MapTexture | ShaderTrait::AdjustSaturation | ShaderTrait::Modulate, QStringLiteral("sphere.vert"), QString());
if (!sphereShader->isValid()) {
qCCritical(KWINEFFECTS) << "The sphere shader failed to load!";
return false;
} else {
ShaderBinder binder(sphereShader);
sphereShader->setUniform("sampler", 0);
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
sphereShader->setUniform("width", (float)rect.width() * 0.5f);
sphereShader->setUniform("height", (float)rect.height() * 0.5f);
sphereShader->setUniform("u_offset", QVector2D(0, 0));
}
return true;
}
void CubeEffect::startAnimation(AnimationState state)
{
QEasingCurve curve;
/* If this is first and only animation -> EaseInOut
* there is more -> EaseIn
* If there was an animation before, and this is the last one -> EaseOut
* there is more -> Linear */
if (animationState == AnimationState::None) {
curve.setType(animations.empty() ? QEasingCurve::InOutSine : QEasingCurve::InCurve);
} else {
curve.setType(animations.empty() ? QEasingCurve::OutCurve : QEasingCurve::Linear);
}
timeLine.reset();
timeLine.setEasingCurve(curve);
startAngle = currentAngle;
startFrontDesktop = frontDesktop;
animationState = state;
}
void CubeEffect::startVerticalAnimation(VerticalAnimationState state)
{
/* Ignore if there is nowhere to rotate */
if ((qFuzzyIsNull(verticalCurrentAngle - 90.0f) && state == VerticalAnimationState::Upwards) ||
(qFuzzyIsNull(verticalCurrentAngle + 90.0f) && state == VerticalAnimationState::Downwards)) {
return;
}
verticalTimeLine.reset();
verticalStartAngle = verticalCurrentAngle;
verticalAnimationState = state;
}
void CubeEffect::prePaintScreen(ScreenPrePaintData& data, int time)
{
if (activated) {
data.mask |= PAINT_SCREEN_TRANSFORMED | Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS | PAINT_SCREEN_BACKGROUND_FIRST;
if (animationState == AnimationState::None && !animations.empty()) {
startAnimation(animations.dequeue());
}
if (verticalAnimationState == VerticalAnimationState::None && !verticalAnimations.empty()) {
startVerticalAnimation(verticalAnimations.dequeue());
}
if (animationState != AnimationState::None || verticalAnimationState != VerticalAnimationState::None) {
if (animationState != AnimationState::None) {
timeLine.update(std::chrono::milliseconds(time));
}
if (verticalAnimationState != VerticalAnimationState::None) {
verticalTimeLine.update(std::chrono::milliseconds(time));
}
rotateCube();
}
}
effects->prePaintScreen(data, time);
}
void CubeEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
if (activated) {
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
// background
float clearColor[4];
glGetFloatv(GL_COLOR_CLEAR_VALUE, clearColor);
glClearColor(backgroundColor.redF(), backgroundColor.greenF(), backgroundColor.blueF(), 1.0);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
// wallpaper
if (wallpaper) {
ShaderBinder binder(ShaderTrait::MapTexture);
binder.shader()->setUniform(GLShader::ModelViewProjectionMatrix, data.projectionMatrix());
wallpaper->bind();
wallpaper->render(region, rect);
wallpaper->unbind();
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// some veriables needed for painting the caps
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float point = rect.width() / 2 * tan(cubeAngle * 0.5f * M_PI / 180.0f);
float zTranslate = zPosition + zoom;
if (animationState == AnimationState::Start) {
zTranslate *= timeLine.value();
} else if (animationState == AnimationState::Stop) {
zTranslate *= (1.0 - timeLine.value());
}
// reflection
if (reflection) {
// we can use a huge scale factor (needed to calculate the rearground vertices)
float scaleFactor = 1000000 * tan(60.0 * M_PI / 360.0f) / rect.height();
m_reflectionMatrix.setToIdentity();
m_reflectionMatrix.scale(1.0, -1.0, 1.0);
double translate = 0.0;
if (mode == Cube) {
double addedHeight1 = -rect.height() * cos(verticalCurrentAngle*M_PI/180.0f) - rect.width() * sin(fabs(verticalCurrentAngle)*M_PI/180.0f)/tan(M_PI/effects->numberOfDesktops());
double addedHeight2 = -rect.width() * sin(fabs(verticalCurrentAngle)*M_PI/180.0f)*tan(M_PI*0.5f/effects->numberOfDesktops());
if (verticalCurrentAngle > 0.0f && effects->numberOfDesktops() & 1)
translate = cos(fabs(currentAngle)*effects->numberOfDesktops()*M_PI/360.0f) * addedHeight2 + addedHeight1 - float(rect.height());
else
translate = sin(fabs(currentAngle)*effects->numberOfDesktops()*M_PI/360.0f) * addedHeight2 + addedHeight1 - float(rect.height());
} else if (mode == Cylinder) {
double addedHeight1 = -rect.height() * cos(verticalCurrentAngle*M_PI/180.0f) - rect.width() * sin(fabs(verticalCurrentAngle)*M_PI/180.0f)/tan(M_PI/effects->numberOfDesktops());
translate = addedHeight1 - float(rect.height());
} else {
float radius = (rect.width() * 0.5) / cos(cubeAngle * 0.5 * M_PI / 180.0);
translate = -rect.height()-2*radius;
}
m_reflectionMatrix.translate(0.0f, translate, 0.0f);
reflectionPainting = true;
glEnable(GL_CULL_FACE);
paintCap(true, -point - zTranslate, data.projectionMatrix());
// cube
glCullFace(GL_BACK);
paintCube(mask, region, data);
glCullFace(GL_FRONT);
paintCube(mask, region, data);
paintCap(false, -point - zTranslate, data.projectionMatrix());
glDisable(GL_CULL_FACE);
reflectionPainting = false;
const float width = rect.width();
const float height = rect.height();
float vertices[] = {
-width * 0.5f, height, 0.0,
width * 0.5f, height, 0.0,
width * scaleFactor, height, -5000,
-width * scaleFactor, height, -5000
};
// foreground
float alpha = 0.7;
if (animationState == AnimationState::Start) {
alpha = 0.3 + 0.4 * timeLine.value();
} else if (animationState == AnimationState::Stop) {
alpha = 0.3 + 0.4 * (1.0 - timeLine.value());
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
if (m_reflectionShader && m_reflectionShader->isValid()) {
// ensure blending is enabled - no attribute stack
ShaderBinder binder(m_reflectionShader);
QMatrix4x4 windowTransformation = data.projectionMatrix();
windowTransformation.translate(rect.x() + rect.width() * 0.5f, 0.0, 0.0);
m_reflectionShader->setUniform(GLShader::ModelViewProjectionMatrix, windowTransformation);
m_reflectionShader->setUniform("u_alpha", alpha);
QVector<float> verts;
QVector<float> texcoords;
verts.reserve(18);
texcoords.reserve(12);
texcoords << 0.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
texcoords << 0.0 << 0.0;
verts << vertices[9] << vertices[10] << vertices[11];
texcoords << 1.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 1.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 1.0 << 0.0;
verts << vertices[3] << vertices[4] << vertices[5];
texcoords << 0.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setData(6, 3, verts.data(), texcoords.data());
vbo->render(GL_TRIANGLES);
}
glDisable(GL_BLEND);
}
glEnable(GL_CULL_FACE);
// caps
paintCap(false, -point - zTranslate, data.projectionMatrix());
// cube
glCullFace(GL_FRONT);
paintCube(mask, region, data);
glCullFace(GL_BACK);
paintCube(mask, region, data);
// cap
paintCap(true, -point - zTranslate, data.projectionMatrix());
glDisable(GL_CULL_FACE);
glDisable(GL_BLEND);
// desktop name box - inspired from coverswitch
if (displayDesktopName) {
double opacity = 1.0;
if (animationState == AnimationState::Start) {
opacity = timeLine.value();
} else if (animationState == AnimationState::Stop) {
opacity = 1.0 - timeLine.value();
}
QRect screenRect = effects->clientArea(ScreenArea, activeScreen, frontDesktop);
QRect frameRect = QRect(screenRect.width() * 0.33f + screenRect.x(), screenRect.height() * 0.95f + screenRect.y(),
screenRect.width() * 0.34f, QFontMetrics(desktopNameFont).height());
if (!desktopNameFrame) {
desktopNameFrame = effects->effectFrame(EffectFrameStyled);
desktopNameFrame->setFont(desktopNameFont);
}
desktopNameFrame->setGeometry(frameRect);
desktopNameFrame->setText(effects->desktopName(frontDesktop));
desktopNameFrame->render(region, opacity);
}
} else {
effects->paintScreen(mask, region, data);
}
}
void CubeEffect::rotateCube()
{
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
m_rotationMatrix.setToIdentity();
float internalCubeAngle = 360.0f / effects->numberOfDesktops();
float zTranslate = zPosition + zoom;
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float point = rect.width() / 2 * tan(cubeAngle * 0.5f * M_PI / 180.0f);
/* Animations */
if (animationState == AnimationState::Start) {
zTranslate *= timeLine.value();
} else if (animationState == AnimationState::Stop) {
currentAngle = startAngle * (1.0 - timeLine.value());
zTranslate *= (1.0 - timeLine.value());
} else if (animationState != AnimationState::None) {
/* Left or right */
float endAngle = animationState == AnimationState::Right ? internalCubeAngle : -internalCubeAngle;
currentAngle = startAngle + timeLine.value() * (endAngle - startAngle);
frontDesktop = startFrontDesktop;
}
/* Switching to next desktop: either by mouse or due to animation */
if (currentAngle > internalCubeAngle * 0.5f) {
currentAngle -= internalCubeAngle;
frontDesktop--;
if (frontDesktop < 1) {
frontDesktop = effects->numberOfDesktops();
}
}
if (currentAngle < -internalCubeAngle * 0.5f) {
currentAngle += internalCubeAngle;
frontDesktop++;
if (frontDesktop > effects->numberOfDesktops()) {
frontDesktop = 1;
}
}
/* Vertical animations */
if (verticalAnimationState != VerticalAnimationState::None) {
float verticalEndAngle = 0.0;
if (verticalAnimationState == VerticalAnimationState::Upwards && verticalStartAngle >= 0.0) {
verticalEndAngle = 90.0;
}
if (verticalAnimationState == VerticalAnimationState::Downwards && verticalStartAngle <= 0.0) {
verticalEndAngle = -90.0;
}
// This also handles the "VerticalAnimationState::Stop" correctly, since it has endAngle = 0.0
verticalCurrentAngle = verticalStartAngle + verticalTimeLine.value() * (verticalEndAngle - verticalStartAngle);
}
/* Updating rotation matrix */
if (verticalAnimationState != VerticalAnimationState::None || verticalCurrentAngle != 0.0f) {
m_rotationMatrix.translate(rect.width() / 2, rect.height() / 2, -point - zTranslate);
m_rotationMatrix.rotate(verticalCurrentAngle, 1.0, 0.0, 0.0);
m_rotationMatrix.translate(-rect.width() / 2, -rect.height() / 2, point + zTranslate);
}
if (animationState != AnimationState::None || currentAngle != 0.0f) {
m_rotationMatrix.translate(rect.width() / 2, rect.height() / 2, -point - zTranslate);
m_rotationMatrix.rotate(currentAngle, 0.0, 1.0, 0.0);
m_rotationMatrix.translate(-rect.width() / 2, -rect.height() / 2, point + zTranslate);
}
}
void CubeEffect::paintCube(int mask, QRegion region, ScreenPaintData& data)
{
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float internalCubeAngle = 360.0f / effects->numberOfDesktops();
cube_painting = true;
float zTranslate = zPosition + zoom;
if (animationState == AnimationState::Start) {
zTranslate *= timeLine.value();
} else if (animationState == AnimationState::Stop) {
zTranslate *= (1.0 - timeLine.value());
}
// Rotation of the cube
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float point = rect.width() / 2 * tan(cubeAngle * 0.5f * M_PI / 180.0f);
for (int i = 0; i < effects->numberOfDesktops(); i++) {
// start painting the cube
painting_desktop = (i + frontDesktop) % effects->numberOfDesktops();
if (painting_desktop == 0) {
painting_desktop = effects->numberOfDesktops();
}
QMatrix4x4 matrix;
matrix.translate(0, 0, -zTranslate);
const QVector3D origin(rect.width() / 2, 0.0, -point);
matrix.translate(origin);
matrix.rotate(internalCubeAngle * i, 0, 1, 0);
matrix.translate(-origin);
m_currentFaceMatrix = matrix;
effects->paintScreen(mask, region, data);
}
cube_painting = false;
painting_desktop = effects->currentDesktop();
}
void CubeEffect::paintCap(bool frontFirst, float zOffset, const QMatrix4x4 &projection)
{
if ((!paintCaps) || effects->numberOfDesktops() <= 2)
return;
GLenum firstCull = frontFirst ? GL_FRONT : GL_BACK;
GLenum secondCull = frontFirst ? GL_BACK : GL_FRONT;
const QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
// create the VBO if not yet created
if (!m_cubeCapBuffer) {
switch(mode) {
case Cube:
paintCubeCap();
break;
case Cylinder:
paintCylinderCap();
break;
case Sphere:
paintSphereCap();
break;
default:
// impossible
break;
}
}
QMatrix4x4 capMvp;
QMatrix4x4 capMatrix;
capMatrix.translate(rect.width() / 2, 0.0, zOffset);
capMatrix.rotate((1 - frontDesktop) * 360.0f / effects->numberOfDesktops(), 0.0, 1.0, 0.0);
capMatrix.translate(0.0, rect.height(), 0.0);
if (mode == Sphere) {
capMatrix.scale(1.0, -1.0, 1.0);
}
bool capShader = false;
if (effects->compositingType() == OpenGL2Compositing && m_capShader && m_capShader->isValid()) {
capShader = true;
ShaderManager::instance()->pushShader(m_capShader);
float opacity = cubeOpacity;
if (animationState == AnimationState::Start) {
opacity *= timeLine.value();
} else if (animationState == AnimationState::Stop) {
opacity *= (1.0 - timeLine.value());
}
m_capShader->setUniform("u_opacity", opacity);
m_capShader->setUniform("u_mirror", 1);
if (reflectionPainting) {
capMvp = projection * m_reflectionMatrix * m_rotationMatrix;
} else {
capMvp = projection * m_rotationMatrix;
}
m_capShader->setUniform(GLShader::ModelViewProjectionMatrix, capMvp * capMatrix);
m_capShader->setUniform("u_untextured", texturedCaps ? 0 : 1);
if (texturedCaps && effects->numberOfDesktops() > 3 && capTexture) {
capTexture->bind();
}
}
glEnable(GL_BLEND);
glCullFace(firstCull);
m_cubeCapBuffer->render(GL_TRIANGLES);
if (mode == Sphere) {
capMatrix.scale(1.0, -1.0, 1.0);
}
capMatrix.translate(0.0, -rect.height(), 0.0);
if (capShader) {
m_capShader->setUniform(GLShader::ModelViewProjectionMatrix, capMvp * capMatrix);
m_capShader->setUniform("u_mirror", 0);
}
glCullFace(secondCull);
m_cubeCapBuffer->render(GL_TRIANGLES);
glDisable(GL_BLEND);
if (capShader) {
ShaderManager::instance()->popShader();
if (texturedCaps && effects->numberOfDesktops() > 3 && capTexture) {
capTexture->unbind();
}
}
}
void CubeEffect::paintCubeCap()
{
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float z = rect.width() / 2 * tan(cubeAngle * 0.5f * M_PI / 180.0f);
float zTexture = rect.width() / 2 * tan(45.0f * M_PI / 180.0f);
float angle = 360.0f / effects->numberOfDesktops();
bool texture = texturedCaps && effects->numberOfDesktops() > 3 && capTexture;
QVector<float> verts;
QVector<float> texCoords;
for (int i = 0; i < effects->numberOfDesktops(); i++) {
int triangleRows = effects->numberOfDesktops() * 5;
float zTriangleDistance = z / (float)triangleRows;
float widthTriangle = tan(angle * 0.5 * M_PI / 180.0) * zTriangleDistance;
float currentWidth = 0.0;
float cosValue = cos(i * angle * M_PI / 180.0);
float sinValue = sin(i * angle * M_PI / 180.0);
for (int j = 0; j < triangleRows; j++) {
float previousWidth = currentWidth;
currentWidth = tan(angle * 0.5 * M_PI / 180.0) * zTriangleDistance * (j + 1);
int evenTriangles = 0;
int oddTriangles = 0;
for (int k = 0; k < floor(currentWidth / widthTriangle * 2 - 1 + 0.5f); k++) {
float x1 = -previousWidth;
float x2 = -currentWidth;
float x3 = 0.0;
float z1 = 0.0;
float z2 = 0.0;
float z3 = 0.0;
if (k % 2 == 0) {
x1 += evenTriangles * widthTriangle * 2;
x2 += evenTriangles * widthTriangle * 2;
x3 = x2 + widthTriangle * 2;
z1 = j * zTriangleDistance;
z2 = (j + 1) * zTriangleDistance;
z3 = (j + 1) * zTriangleDistance;
float xRot = cosValue * x1 - sinValue * z1;
float zRot = sinValue * x1 + cosValue * z1;
x1 = xRot;
z1 = zRot;
xRot = cosValue * x2 - sinValue * z2;
zRot = sinValue * x2 + cosValue * z2;
x2 = xRot;
z2 = zRot;
xRot = cosValue * x3 - sinValue * z3;
zRot = sinValue * x3 + cosValue * z3;
x3 = xRot;
z3 = zRot;
evenTriangles++;
} else {
x1 += oddTriangles * widthTriangle * 2;
x2 += (oddTriangles + 1) * widthTriangle * 2;
x3 = x1 + widthTriangle * 2;
z1 = j * zTriangleDistance;
z2 = (j + 1) * zTriangleDistance;
z3 = j * zTriangleDistance;
float xRot = cosValue * x1 - sinValue * z1;
float zRot = sinValue * x1 + cosValue * z1;
x1 = xRot;
z1 = zRot;
xRot = cosValue * x2 - sinValue * z2;
zRot = sinValue * x2 + cosValue * z2;
x2 = xRot;
z2 = zRot;
xRot = cosValue * x3 - sinValue * z3;
zRot = sinValue * x3 + cosValue * z3;
x3 = xRot;
z3 = zRot;
oddTriangles++;
}
float texX1 = 0.0;
float texX2 = 0.0;
float texX3 = 0.0;
float texY1 = 0.0;
float texY2 = 0.0;
float texY3 = 0.0;
if (texture) {
if (capTexture->isYInverted()) {
texX1 = x1 / (rect.width()) + 0.5;
texY1 = 0.5 + z1 / zTexture * 0.5;
texX2 = x2 / (rect.width()) + 0.5;
texY2 = 0.5 + z2 / zTexture * 0.5;
texX3 = x3 / (rect.width()) + 0.5;
texY3 = 0.5 + z3 / zTexture * 0.5;
texCoords << texX1 << texY1;
} else {
texX1 = x1 / (rect.width()) + 0.5;
texY1 = 0.5 - z1 / zTexture * 0.5;
texX2 = x2 / (rect.width()) + 0.5;
texY2 = 0.5 - z2 / zTexture * 0.5;
texX3 = x3 / (rect.width()) + 0.5;
texY3 = 0.5 - z3 / zTexture * 0.5;
texCoords << texX1 << texY1;
}
}
verts << x1 << 0.0 << z1;
if (texture) {
texCoords << texX2 << texY2;
}
verts << x2 << 0.0 << z2;
if (texture) {
texCoords << texX3 << texY3;
}
verts << x3 << 0.0 << z3;
}
}
}
delete m_cubeCapBuffer;
m_cubeCapBuffer = new GLVertexBuffer(GLVertexBuffer::Static);
m_cubeCapBuffer->setData(verts.count() / 3, 3, verts.constData(), texture ? texCoords.constData() : nullptr);
}
void CubeEffect::paintCylinderCap()
{
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float radian = (cubeAngle * 0.5) * M_PI / 180;
float radius = (rect.width() * 0.5) * tan(radian);
float segment = radius / 30.0f;
bool texture = texturedCaps && effects->numberOfDesktops() > 3 && capTexture;
QVector<float> verts;
QVector<float> texCoords;
for (int i = 1; i <= 30; i++) {
int steps = 72;
for (int j = 0; j <= steps; j++) {
const float azimuthAngle = (j * (360.0f / steps)) * M_PI / 180.0f;
const float azimuthAngle2 = ((j + 1) * (360.0f / steps)) * M_PI / 180.0f;
const float x1 = segment * (i - 1) * sin(azimuthAngle);
const float x2 = segment * i * sin(azimuthAngle);
const float x3 = segment * (i - 1) * sin(azimuthAngle2);
const float x4 = segment * i * sin(azimuthAngle2);
const float z1 = segment * (i - 1) * cos(azimuthAngle);
const float z2 = segment * i * cos(azimuthAngle);
const float z3 = segment * (i - 1) * cos(azimuthAngle2);
const float z4 = segment * i * cos(azimuthAngle2);
if (texture) {
if (capTexture->isYInverted()) {
texCoords << (radius + x1) / (radius * 2.0f) << (z1 + radius) / (radius * 2.0f);
texCoords << (radius + x2) / (radius * 2.0f) << (z2 + radius) / (radius * 2.0f);
texCoords << (radius + x3) / (radius * 2.0f) << (z3 + radius) / (radius * 2.0f);
texCoords << (radius + x4) / (radius * 2.0f) << (z4 + radius) / (radius * 2.0f);
texCoords << (radius + x3) / (radius * 2.0f) << (z3 + radius) / (radius * 2.0f);
texCoords << (radius + x2) / (radius * 2.0f) << (z2 + radius) / (radius * 2.0f);
} else {
texCoords << (radius + x1) / (radius * 2.0f) << 1.0f - (z1 + radius) / (radius * 2.0f);
texCoords << (radius + x2) / (radius * 2.0f) << 1.0f - (z2 + radius) / (radius * 2.0f);
texCoords << (radius + x3) / (radius * 2.0f) << 1.0f - (z3 + radius) / (radius * 2.0f);
texCoords << (radius + x4) / (radius * 2.0f) << 1.0f - (z4 + radius) / (radius * 2.0f);
texCoords << (radius + x3) / (radius * 2.0f) << 1.0f - (z3 + radius) / (radius * 2.0f);
texCoords << (radius + x2) / (radius * 2.0f) << 1.0f - (z2 + radius) / (radius * 2.0f);
}
}
verts << x1 << 0.0 << z1;
verts << x2 << 0.0 << z2;
verts << x3 << 0.0 << z3;
verts << x4 << 0.0 << z4;
verts << x3 << 0.0 << z3;
verts << x2 << 0.0 << z2;
}
}
delete m_cubeCapBuffer;
m_cubeCapBuffer = new GLVertexBuffer(GLVertexBuffer::Static);
m_cubeCapBuffer->setData(verts.count() / 3, 3, verts.constData(), texture ? texCoords.constData() : nullptr);
}
void CubeEffect::paintSphereCap()
{
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float cubeAngle = (float)((float)(effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 180.0f);
float zTexture = rect.width() / 2 * tan(45.0f * M_PI / 180.0f);
float radius = (rect.width() * 0.5) / cos(cubeAngle * 0.5 * M_PI / 180.0);
float angle = acos((rect.height() * 0.5) / radius) * 180.0 / M_PI;
angle /= 30;
bool texture = texturedCaps && effects->numberOfDesktops() > 3 && capTexture;
QVector<float> verts;
QVector<float> texCoords;
for (int i = 0; i < 30; i++) {
float topAngle = angle * i * M_PI / 180.0;
float bottomAngle = angle * (i + 1) * M_PI / 180.0;
float yTop = (rect.height() * 0.5 - radius * cos(topAngle));
yTop *= (1.0f-capDeformationFactor);
float yBottom = rect.height() * 0.5 - radius * cos(bottomAngle);
yBottom *= (1.0f - capDeformationFactor);
for (int j = 0; j < 36; j++) {
const float x1 = radius * sin(topAngle) * sin((90.0 + j * 10.0) * M_PI / 180.0);
const float z1 = radius * sin(topAngle) * cos((90.0 + j * 10.0) * M_PI / 180.0);
const float x2 = radius * sin(bottomAngle) * sin((90.0 + j * 10.0) * M_PI / 180.00);
const float z2 = radius * sin(bottomAngle) * cos((90.0 + j * 10.0) * M_PI / 180.0);
const float x3 = radius * sin(bottomAngle) * sin((90.0 + (j + 1) * 10.0) * M_PI / 180.0);
const float z3 = radius * sin(bottomAngle) * cos((90.0 + (j + 1) * 10.0) * M_PI / 180.0);
const float x4 = radius * sin(topAngle) * sin((90.0 + (j + 1) * 10.0) * M_PI / 180.0);
const float z4 = radius * sin(topAngle) * cos((90.0 + (j + 1) * 10.0) * M_PI / 180.0);
if (texture) {
if (capTexture->isYInverted()) {
texCoords << x4 / (rect.width()) + 0.5 << 0.5 + z4 / zTexture * 0.5;
texCoords << x1 / (rect.width()) + 0.5 << 0.5 + z1 / zTexture * 0.5;
texCoords << x2 / (rect.width()) + 0.5 << 0.5 + z2 / zTexture * 0.5;
texCoords << x2 / (rect.width()) + 0.5 << 0.5 + z2 / zTexture * 0.5;
texCoords << x3 / (rect.width()) + 0.5 << 0.5 + z3 / zTexture * 0.5;
texCoords << x4 / (rect.width()) + 0.5 << 0.5 + z4 / zTexture * 0.5;
} else {
texCoords << x4 / (rect.width()) + 0.5 << 0.5 - z4 / zTexture * 0.5;
texCoords << x1 / (rect.width()) + 0.5 << 0.5 - z1 / zTexture * 0.5;
texCoords << x2 / (rect.width()) + 0.5 << 0.5 - z2 / zTexture * 0.5;
texCoords << x2 / (rect.width()) + 0.5 << 0.5 - z2 / zTexture * 0.5;
texCoords << x3 / (rect.width()) + 0.5 << 0.5 - z3 / zTexture * 0.5;
texCoords << x4 / (rect.width()) + 0.5 << 0.5 - z4 / zTexture * 0.5;
}
}
verts << x4 << yTop << z4;
verts << x1 << yTop << z1;
verts << x2 << yBottom << z2;
verts << x2 << yBottom << z2;
verts << x3 << yBottom << z3;
verts << x4 << yTop << z4;
}
}
delete m_cubeCapBuffer;
m_cubeCapBuffer = new GLVertexBuffer(GLVertexBuffer::Static);
m_cubeCapBuffer->setData(verts.count() / 3, 3, verts.constData(), texture ? texCoords.constData() : nullptr);
}
void CubeEffect::postPaintScreen()
{
effects->postPaintScreen();
if (!activated)
return;
bool animation = (animationState != AnimationState::None || verticalAnimationState != VerticalAnimationState::None);
if (animationState != AnimationState::None && timeLine.done()) {
/* An animation have just finished! */
if (animationState == AnimationState::Stop) {
/* If the stop animation is finished, we're done */
if (keyboard_grab)
effects->ungrabKeyboard();
keyboard_grab = false;
effects->stopMouseInterception(this);
effects->setCurrentDesktop(frontDesktop);
effects->setActiveFullScreenEffect(nullptr);
delete m_cubeCapBuffer;
m_cubeCapBuffer = nullptr;
if (desktopNameFrame)
desktopNameFrame->free();
activated = false;
// User can press Esc several times, and several Stop animations can be added to queue. We don't want it
animationState = AnimationState::None;
animations.clear();
verticalAnimationState = VerticalAnimationState::None;
verticalAnimations.clear();
} else {
if (!animations.empty())
startAnimation(animations.dequeue());
else
animationState = AnimationState::None;
}
}
/* Vertical animation have finished */
if (verticalAnimationState != VerticalAnimationState::None && verticalTimeLine.done()) {
if (!verticalAnimations.empty()) {
startVerticalAnimation(verticalAnimations.dequeue());
} else {
verticalAnimationState = VerticalAnimationState::None;
}
}
/* Repaint if there is any animation */
if (animation) {
effects->addRepaintFull();
}
}
void CubeEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
{
if (activated) {
if (cube_painting) {
if (mode == Cylinder || mode == Sphere) {
int leftDesktop = frontDesktop - 1;
int rightDesktop = frontDesktop + 1;
if (leftDesktop == 0)
leftDesktop = effects->numberOfDesktops();
if (rightDesktop > effects->numberOfDesktops())
rightDesktop = 1;
if (painting_desktop == frontDesktop)
data.quads = data.quads.makeGrid(40);
else if (painting_desktop == leftDesktop || painting_desktop == rightDesktop)
data.quads = data.quads.makeGrid(100);
else
data.quads = data.quads.makeGrid(250);
}
if (w->isOnDesktop(painting_desktop)) {
QRect rect = effects->clientArea(FullArea, activeScreen, painting_desktop);
if (w->x() < rect.x()) {
data.quads = data.quads.splitAtX(-w->x());
}
if (w->x() + w->width() > rect.x() + rect.width()) {
data.quads = data.quads.splitAtX(rect.width() - w->x());
}
if (w->y() < rect.y()) {
data.quads = data.quads.splitAtY(-w->y());
}
if (w->y() + w->height() > rect.y() + rect.height()) {
data.quads = data.quads.splitAtY(rect.height() - w->y());
}
if (useZOrdering && !w->isDesktop() && !w->isDock() && !w->isOnAllDesktops())
data.setTransformed();
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
} else {
// check for windows belonging to the previous desktop
int prev_desktop = painting_desktop - 1;
if (prev_desktop == 0)
prev_desktop = effects->numberOfDesktops();
if (w->isOnDesktop(prev_desktop) && mode == Cube && !useZOrdering) {
QRect rect = effects->clientArea(FullArea, activeScreen, prev_desktop);
if (w->x() + w->width() > rect.x() + rect.width()) {
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
data.quads = data.quads.splitAtX(rect.width() - w->x());
if (w->y() < rect.y()) {
data.quads = data.quads.splitAtY(-w->y());
}
if (w->y() + w->height() > rect.y() + rect.height()) {
data.quads = data.quads.splitAtY(rect.height() - w->y());
}
data.setTransformed();
effects->prePaintWindow(w, data, time);
return;
}
}
// check for windows belonging to the next desktop
int next_desktop = painting_desktop + 1;
if (next_desktop > effects->numberOfDesktops())
next_desktop = 1;
if (w->isOnDesktop(next_desktop) && mode == Cube && !useZOrdering) {
QRect rect = effects->clientArea(FullArea, activeScreen, next_desktop);
if (w->x() < rect.x()) {
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
data.quads = data.quads.splitAtX(-w->x());
if (w->y() < rect.y()) {
data.quads = data.quads.splitAtY(-w->y());
}
if (w->y() + w->height() > rect.y() + rect.height()) {
data.quads = data.quads.splitAtY(rect.height() - w->y());
}
data.setTransformed();
effects->prePaintWindow(w, data, time);
return;
}
}
w->disablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
}
}
}
effects->prePaintWindow(w, data, time);
}
void CubeEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
ShaderManager *shaderManager = ShaderManager::instance();
if (activated && cube_painting) {
region= infiniteRegion(); // we need to explicitly prevent any clipping, bug #325432
//qCDebug(KWINEFFECTS) << w->caption();
float opacity = cubeOpacity;
if (animationState == AnimationState::Start) {
opacity = 1.0 - (1.0 - opacity) * timeLine.value();
if (reflectionPainting)
opacity = 0.5 + (cubeOpacity - 0.5) * timeLine.value();
// fade in windows belonging to different desktops
if (painting_desktop == effects->currentDesktop() && (!w->isOnDesktop(painting_desktop)))
opacity = timeLine.value() * cubeOpacity;
} else if (animationState == AnimationState::Stop) {
opacity = 1.0 - (1.0 - opacity) * (1.0 - timeLine.value());
if (reflectionPainting)
opacity = 0.5 + (cubeOpacity - 0.5) * (1.0 - timeLine.value());
// fade out windows belonging to different desktops
if (painting_desktop == effects->currentDesktop() && (!w->isOnDesktop(painting_desktop)))
opacity = cubeOpacity * (1.0 - timeLine.value());
}
// z-Ordering
if (!w->isDesktop() && !w->isDock() && useZOrdering && !w->isOnAllDesktops()) {
float zOrdering = (effects->stackingOrder().indexOf(w) + 1) * zOrderingFactor;
if (animationState == AnimationState::Start) {
zOrdering *= timeLine.value();
} else if (animationState == AnimationState::Stop) {
zOrdering *= (1.0 - timeLine.value());
}
data.translate(0.0, 0.0, zOrdering);
}
// check for windows belonging to the previous desktop
int prev_desktop = painting_desktop - 1;
if (prev_desktop == 0)
prev_desktop = effects->numberOfDesktops();
int next_desktop = painting_desktop + 1;
if (next_desktop > effects->numberOfDesktops())
next_desktop = 1;
if (w->isOnDesktop(prev_desktop) && (mask & PAINT_WINDOW_TRANSFORMED)) {
QRect rect = effects->clientArea(FullArea, activeScreen, prev_desktop);
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (quad.right() > rect.width() - w->x()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
data.setXTranslation(-rect.width());
}
if (w->isOnDesktop(next_desktop) && (mask & PAINT_WINDOW_TRANSFORMED)) {
QRect rect = effects->clientArea(FullArea, activeScreen, next_desktop);
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (w->x() + quad.right() <= rect.x()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
data.setXTranslation(rect.width());
}
QRect rect = effects->clientArea(FullArea, activeScreen, painting_desktop);
if (animationState == AnimationState::Start || animationState == AnimationState::Stop) {
// we have to change opacity values for fade in/out of windows which are shown on front-desktop
if (prev_desktop == effects->currentDesktop() && w->x() < rect.x()) {
if (animationState == AnimationState::Start) {
opacity = timeLine.value() * cubeOpacity;
} else if (animationState == AnimationState::Stop) {
opacity = cubeOpacity * (1.0 - timeLine.value());
}
}
if (next_desktop == effects->currentDesktop() && w->x() + w->width() > rect.x() + rect.width()) {
if (animationState == AnimationState::Start) {
opacity = timeLine.value() * cubeOpacity;
} else if (animationState == AnimationState::Stop) {
opacity = cubeOpacity * (1.0 - timeLine.value());
}
}
}
// HACK set opacity to 0.99 in case of fully opaque to ensure that windows are painted in correct sequence
// bug #173214
if (opacity > 0.99f)
opacity = 0.99f;
if (opacityDesktopOnly && !w->isDesktop())
opacity = 0.99f;
data.multiplyOpacity(opacity);
if (w->isOnDesktop(painting_desktop) && w->x() < rect.x()) {
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (quad.right() > -w->x()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
if (w->isOnDesktop(painting_desktop) && w->x() + w->width() > rect.x() + rect.width()) {
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (quad.right() <= rect.width() - w->x()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
if (w->y() < rect.y()) {
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (quad.bottom() > -w->y()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
if (w->y() + w->height() > rect.y() + rect.height()) {
WindowQuadList new_quads;
foreach (const WindowQuad & quad, data.quads) {
if (quad.bottom() <= rect.height() - w->y()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
GLShader *currentShader = nullptr;
if (mode == Cylinder) {
shaderManager->pushShader(cylinderShader);
cylinderShader->setUniform("xCoord", (float)w->x());
cylinderShader->setUniform("cubeAngle", (effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 90.0f);
float factor = 0.0f;
if (animationState == AnimationState::Start) {
factor = 1.0f - timeLine.value();
} else if (animationState == AnimationState::Stop) {
factor = timeLine.value();
}
cylinderShader->setUniform("timeLine", factor);
currentShader = cylinderShader;
}
if (mode == Sphere) {
shaderManager->pushShader(sphereShader);
sphereShader->setUniform("u_offset", QVector2D(w->x(), w->y()));
sphereShader->setUniform("cubeAngle", (effects->numberOfDesktops() - 2) / (float)effects->numberOfDesktops() * 90.0f);
float factor = 0.0f;
if (animationState == AnimationState::Start) {
factor = 1.0f - timeLine.value();
} else if (animationState == AnimationState::Stop) {
factor = timeLine.value();
}
sphereShader->setUniform("timeLine", factor);
currentShader = sphereShader;
}
if (currentShader) {
data.shader = currentShader;
}
data.setProjectionMatrix(data.screenProjectionMatrix());
if (reflectionPainting) {
data.setModelViewMatrix(m_reflectionMatrix * m_rotationMatrix * m_currentFaceMatrix);
} else {
data.setModelViewMatrix(m_rotationMatrix * m_currentFaceMatrix);
}
}
effects->paintWindow(w, mask, region, data);
if (activated && cube_painting) {
if (mode == Cylinder || mode == Sphere) {
shaderManager->popShader();
}
if (w->isDesktop() && effects->numScreens() > 1 && paintCaps) {
QRect rect = effects->clientArea(FullArea, activeScreen, painting_desktop);
QRegion paint = QRegion(rect);
for (int i = 0; i < effects->numScreens(); i++) {
if (i == w->screen())
continue;
paint = paint.subtracted(QRegion(effects->clientArea(ScreenArea, i, painting_desktop)));
}
paint = paint.subtracted(QRegion(w->geometry()));
// in case of free area in multiscreen setup fill it with cap color
if (!paint.isEmpty()) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
QVector<float> verts;
float quadSize = 0.0f;
int leftDesktop = frontDesktop - 1;
int rightDesktop = frontDesktop + 1;
if (leftDesktop == 0)
leftDesktop = effects->numberOfDesktops();
if (rightDesktop > effects->numberOfDesktops())
rightDesktop = 1;
if (painting_desktop == frontDesktop)
quadSize = 100.0f;
else if (painting_desktop == leftDesktop || painting_desktop == rightDesktop)
quadSize = 150.0f;
else
quadSize = 250.0f;
for (const QRect &paintRect : paint) {
for (int i = 0; i <= (paintRect.height() / quadSize); i++) {
for (int j = 0; j <= (paintRect.width() / quadSize); j++) {
verts << qMin(paintRect.x() + (j + 1)*quadSize, (float)paintRect.x() + paintRect.width()) << paintRect.y() + i*quadSize;
verts << paintRect.x() + j*quadSize << paintRect.y() + i*quadSize;
verts << paintRect.x() + j*quadSize << qMin(paintRect.y() + (i + 1)*quadSize, (float)paintRect.y() + paintRect.height());
verts << paintRect.x() + j*quadSize << qMin(paintRect.y() + (i + 1)*quadSize, (float)paintRect.y() + paintRect.height());
verts << qMin(paintRect.x() + (j + 1)*quadSize, (float)paintRect.x() + paintRect.width()) << qMin(paintRect.y() + (i + 1)*quadSize, (float)paintRect.y() + paintRect.height());
verts << qMin(paintRect.x() + (j + 1)*quadSize, (float)paintRect.x() + paintRect.width()) << paintRect.y() + i*quadSize;
}
}
}
bool capShader = false;
if (effects->compositingType() == OpenGL2Compositing && m_capShader && m_capShader->isValid()) {
capShader = true;
ShaderManager::instance()->pushShader(m_capShader);
m_capShader->setUniform("u_mirror", 0);
m_capShader->setUniform("u_untextured", 1);
QMatrix4x4 mvp = data.screenProjectionMatrix();
if (reflectionPainting) {
mvp = mvp * m_reflectionMatrix * m_rotationMatrix * m_currentFaceMatrix;
} else {
mvp = mvp * m_rotationMatrix * m_currentFaceMatrix;
}
m_capShader->setUniform(GLShader::ModelViewProjectionMatrix, mvp);
}
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
QColor color = capColor;
capColor.setAlphaF(cubeOpacity);
vbo->setColor(color);
vbo->setData(verts.size() / 2, 2, verts.constData(), nullptr);
if (!capShader || mode == Cube) {
// TODO: use sphere and cylinder shaders
vbo->render(GL_TRIANGLES);
}
if (capShader) {
ShaderManager::instance()->popShader();
}
glDisable(GL_BLEND);
}
}
}
}
bool CubeEffect::borderActivated(ElectricBorder border)
{
if (!borderActivate.contains(border) &&
!borderActivateCylinder.contains(border) &&
!borderActivateSphere.contains(border))
return false;
if (effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this)
return false;
if (borderActivate.contains(border)) {
if (!activated || (activated && mode == Cube))
toggleCube();
else
return false;
}
if (borderActivateCylinder.contains(border)) {
if (!activated || (activated && mode == Cylinder))
toggleCylinder();
else
return false;
}
if (borderActivateSphere.contains(border)) {
if (!activated || (activated && mode == Sphere))
toggleSphere();
else
return false;
}
return true;
}
void CubeEffect::toggleCube()
{
qCDebug(KWINEFFECTS) << "toggle cube";
toggle(Cube);
}
void CubeEffect::toggleCylinder()
{
qCDebug(KWINEFFECTS) << "toggle cylinder";
if (!useShaders)
useShaders = loadShader();
if (useShaders)
toggle(Cylinder);
}
void CubeEffect::toggleSphere()
{
qCDebug(KWINEFFECTS) << "toggle sphere";
if (!useShaders)
useShaders = loadShader();
if (useShaders)
toggle(Sphere);
}
void CubeEffect::toggle(CubeMode newMode)
{
if ((effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this) ||
effects->numberOfDesktops() < 2)
return;
if (!activated) {
mode = newMode;
setActive(true);
} else {
setActive(false);
}
}
void CubeEffect::grabbedKeyboardEvent(QKeyEvent* e)
{
// If either stop is running or is scheduled - ignore all events
if ((!animations.isEmpty() && animations.last() == AnimationState::Stop) || animationState == AnimationState::Stop) {
return;
}
// taken from desktopgrid.cpp
if (e->type() == QEvent::KeyPress) {
// check for global shortcuts
// HACK: keyboard grab disables the global shortcuts so we have to check for global shortcut (bug 156155)
if (mode == Cube && cubeShortcut.contains(e->key() + e->modifiers())) {
toggleCube();
return;
}
if (mode == Cylinder && cylinderShortcut.contains(e->key() + e->modifiers())) {
toggleCylinder();
return;
}
if (mode == Sphere && sphereShortcut.contains(e->key() + e->modifiers())) {
toggleSphere();
return;
}
int desktop = -1;
// switch by F<number> or just <number>
if (e->key() >= Qt::Key_F1 && e->key() <= Qt::Key_F35)
desktop = e->key() - Qt::Key_F1 + 1;
else if (e->key() >= Qt::Key_0 && e->key() <= Qt::Key_9)
desktop = e->key() == Qt::Key_0 ? 10 : e->key() - Qt::Key_0;
if (desktop != -1) {
if (desktop <= effects->numberOfDesktops()) {
// we have to rotate to chosen desktop
// and end effect when rotation finished
rotateToDesktop(desktop);
setActive(false);
}
return;
}
int key = e->key();
if (invertKeys) {
if (key == Qt::Key_Left)
key = Qt::Key_Right;
else if (key == Qt::Key_Right)
key = Qt::Key_Left;
else if (key == Qt::Key_Up)
key = Qt::Key_Down;
else if (key == Qt::Key_Down)
key = Qt::Key_Up;
}
switch(key) {
// wrap only on autorepeat
case Qt::Key_Left:
qCDebug(KWINEFFECTS) << "left";
if (animations.count() < effects->numberOfDesktops())
animations.enqueue(AnimationState::Left);
break;
case Qt::Key_Right:
qCDebug(KWINEFFECTS) << "right";
if (animations.count() < effects->numberOfDesktops())
animations.enqueue(AnimationState::Right);
break;
case Qt::Key_Up:
qCDebug(KWINEFFECTS) << "up";
verticalAnimations.enqueue(VerticalAnimationState::Upwards);
break;
case Qt::Key_Down:
qCDebug(KWINEFFECTS) << "down";
verticalAnimations.enqueue(VerticalAnimationState::Downwards);
break;
case Qt::Key_Escape:
rotateToDesktop(effects->currentDesktop());
setActive(false);
return;
case Qt::Key_Enter:
case Qt::Key_Return:
case Qt::Key_Space:
setActive(false);
return;
case Qt::Key_Plus:
case Qt::Key_Equal:
zoom -= 10.0;
zoom = qMax(-zPosition, zoom);
rotateCube();
break;
case Qt::Key_Minus:
zoom += 10.0f;
rotateCube();
break;
default:
break;
}
}
effects->addRepaintFull();
}
void CubeEffect::rotateToDesktop(int desktop)
{
// all scheduled animations will be removed as a speed up
animations.clear();
verticalAnimations.clear();
// we want only startAnimation to finish gracefully
// all the others can be interrupted
if (animationState != AnimationState::Start) {
animationState = AnimationState::None;
}
verticalAnimationState = VerticalAnimationState::None;
// find the fastest rotation path from frontDesktop to desktop
int rightRotations = frontDesktop - desktop;
if (rightRotations < 0) {
rightRotations += effects->numberOfDesktops();
}
int leftRotations = desktop - frontDesktop;
if (leftRotations < 0) {
leftRotations += effects->numberOfDesktops();
}
if (leftRotations <= rightRotations) {
for (int i = 0; i < leftRotations; i++) {
animations.enqueue(AnimationState::Left);
}
} else {
for (int i = 0; i < rightRotations; i++) {
animations.enqueue(AnimationState::Right);
}
}
// we want the face of desktop to appear, it might need also vertical animation
if (verticalCurrentAngle > 0.0f) {
verticalAnimations.enqueue(VerticalAnimationState::Downwards);
}
if (verticalCurrentAngle < 0.0f) {
verticalAnimations.enqueue(VerticalAnimationState::Upwards);
}
/* Start immediately, so there is no pause:
* during that pause, actual frontDesktop might change
* if user moves his mouse fast, leading to incorrect desktop */
if (animationState == AnimationState::None && !animations.empty()) {
startAnimation(animations.dequeue());
}
if (verticalAnimationState == VerticalAnimationState::None && !verticalAnimations.empty()) {
startVerticalAnimation(verticalAnimations.dequeue());
}
}
void CubeEffect::setActive(bool active)
{
foreach (CubeInsideEffect * inside, m_cubeInsideEffects) {
inside->setActive(true);
}
if (active) {
QString capPath = CubeConfig::capPath();
if (texturedCaps && !capTexture && !capPath.isEmpty()) {
QFutureWatcher<QImage> *watcher = new QFutureWatcher<QImage>(this);
connect(watcher, &QFutureWatcher<QImage>::finished, this, &CubeEffect::slotCubeCapLoaded);
watcher->setFuture(QtConcurrent::run(this, &CubeEffect::loadCubeCap, capPath));
}
QString wallpaperPath = CubeConfig::wallpaper().toLocalFile();
if (!wallpaper && !wallpaperPath.isEmpty()) {
QFutureWatcher<QImage> *watcher = new QFutureWatcher<QImage>(this);
connect(watcher, &QFutureWatcher<QImage>::finished, this, &CubeEffect::slotWallPaperLoaded);
watcher->setFuture(QtConcurrent::run(this, &CubeEffect::loadWallPaper, wallpaperPath));
}
activated = true;
activeScreen = effects->activeScreen();
keyboard_grab = effects->grabKeyboard(this);
effects->startMouseInterception(this, Qt::OpenHandCursor);
frontDesktop = effects->currentDesktop();
zoom = 0.0;
zOrderingFactor = zPosition / (effects->stackingOrder().count() - 1);
animations.enqueue(AnimationState::Start);
animationState = AnimationState::None;
verticalAnimationState = VerticalAnimationState::None;
effects->setActiveFullScreenEffect(this);
qCDebug(KWINEFFECTS) << "Cube is activated";
currentAngle = 0.0;
verticalCurrentAngle = 0.0;
if (reflection) {
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float temporaryCoeff = float(rect.width()) / tan(M_PI / float(effects->numberOfDesktops()));
mAddedHeightCoeff1 = sqrt(float(rect.height()) * float(rect.height()) + temporaryCoeff * temporaryCoeff);
mAddedHeightCoeff2 = sqrt(float(rect.height()) * float(rect.height()) + float(rect.width()) * float(rect.width()) + temporaryCoeff * temporaryCoeff);
}
m_rotationMatrix.setToIdentity();
} else {
animations.enqueue(AnimationState::Stop);
}
effects->addRepaintFull();
}
void CubeEffect::windowInputMouseEvent(QEvent* e)
{
if (!activated)
return;
if (tabBoxMode)
return;
if ((!animations.isEmpty() && animations.last() == AnimationState::Stop) || animationState == AnimationState::Stop)
return;
QMouseEvent *mouse = dynamic_cast< QMouseEvent* >(e);
if (!mouse)
return;
static QPoint oldpos;
static QElapsedTimer dblClckTime;
static int dblClckCounter(0);
if (mouse->type() == QEvent::MouseMove && mouse->buttons().testFlag(Qt::LeftButton)) {
const QPoint pos = mouse->pos();
QRect rect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
bool repaint = false;
// vertical movement only if there is not a rotation
if (verticalAnimationState == VerticalAnimationState::None) {
// display height corresponds to 180*
int deltaY = pos.y() - oldpos.y();
float deltaVerticalDegrees = (float)deltaY / rect.height() * 180.0f;
if (invertMouse)
verticalCurrentAngle += deltaVerticalDegrees;
else
verticalCurrentAngle -= deltaVerticalDegrees;
// don't get too excited
verticalCurrentAngle = qBound(-90.0f, verticalCurrentAngle, 90.0f);
if (deltaVerticalDegrees != 0.0)
repaint = true;
}
// horizontal movement only if there is not a rotation
if (animationState == AnimationState::None) {
// display width corresponds to sum of angles of the polyhedron
int deltaX = oldpos.x() - pos.x();
float deltaDegrees = (float)deltaX / rect.width() * 360.0f;
if (deltaX == 0) {
if (pos.x() == 0)
deltaDegrees = 5.0f;
if (pos.x() == rect.width() - 1)
deltaDegrees = -5.0f;
}
if (invertMouse)
currentAngle += deltaDegrees;
else
currentAngle -= deltaDegrees;
if (deltaDegrees != 0.0)
repaint = true;
}
if (repaint) {
rotateCube();
effects->addRepaintFull();
}
oldpos = pos;
}
else if (mouse->type() == QEvent::MouseButtonPress && mouse->button() == Qt::LeftButton) {
oldpos = mouse->pos();
if (dblClckTime.elapsed() > QApplication::doubleClickInterval())
dblClckCounter = 0;
if (!dblClckCounter)
dblClckTime.start();
}
else if (mouse->type() == QEvent::MouseButtonRelease) {
effects->defineCursor(Qt::OpenHandCursor);
if (mouse->button() == Qt::LeftButton && ++dblClckCounter == 2) {
dblClckCounter = 0;
if (dblClckTime.elapsed() < QApplication::doubleClickInterval()) {
setActive(false);
return;
}
}
else if (mouse->button() == Qt::XButton1) {
if (animations.count() < effects->numberOfDesktops()) {
if (invertMouse)
animations.enqueue(AnimationState::Right);
else
animations.enqueue(AnimationState::Left);
}
effects->addRepaintFull();
} else if (mouse->button() == Qt::XButton2) {
if (animations.count() < effects->numberOfDesktops()) {
if (invertMouse)
animations.enqueue(AnimationState::Left);
else
animations.enqueue(AnimationState::Right);
}
effects->addRepaintFull();
} else if (mouse->button() == Qt::RightButton || (mouse->button() == Qt::LeftButton && closeOnMouseRelease)) {
setActive(false);
}
}
}
void CubeEffect::slotTabBoxAdded(int mode)
{
if (activated)
return;
if (effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this)
return;
if (useForTabBox && mode == TabBoxDesktopListMode) {
effects->refTabBox();
tabBoxMode = true;
setActive(true);
rotateToDesktop(effects->currentTabBoxDesktop());
}
}
void CubeEffect::slotTabBoxUpdated()
{
if (activated) {
rotateToDesktop(effects->currentTabBoxDesktop());
effects->addRepaintFull();
}
}
void CubeEffect::slotTabBoxClosed()
{
if (activated) {
effects->unrefTabBox();
tabBoxMode = false;
setActive(false);
}
}
void CubeEffect::globalShortcutChanged(QAction *action, const QKeySequence &seq)
{
if (action->objectName() == QStringLiteral("Cube")) {
cubeShortcut.clear();
cubeShortcut.append(seq);
} else if (action->objectName() == QStringLiteral("Cylinder")) {
cylinderShortcut.clear();
cylinderShortcut.append(seq);
} else if (action->objectName() == QStringLiteral("Sphere")) {
sphereShortcut.clear();
sphereShortcut.append(seq);
}
}
void* CubeEffect::proxy()
{
return &m_proxy;
}
void CubeEffect::registerCubeInsideEffect(CubeInsideEffect* effect)
{
m_cubeInsideEffects.append(effect);
}
void CubeEffect::unregisterCubeInsideEffect(CubeInsideEffect* effect)
{
m_cubeInsideEffects.removeAll(effect);
}
bool CubeEffect::isActive() const
{
return activated && !effects->isScreenLocked();
}
} // namespace