/* KWin - the KDE window manager This file is part of the KDE project. SPDX-FileCopyrightText: 2008 Martin Gräßlin SPDX-License-Identifier: GPL-2.0-or-later */ #include "coverswitch.h" // KConfigSkeleton #include "coverswitchconfig.h" #include #include #include #include #include #include #include #include #include #include #include #include namespace KWin { CoverSwitchEffect::CoverSwitchEffect() : mActivated(0) , angle(60.0) , animation(false) , start(false) , stop(false) , stopRequested(false) , startRequested(false) , zPosition(900.0) , scaleFactor(0.0) , direction(Left) , selected_window(nullptr) , captionFrame(nullptr) , primaryTabBox(false) , secondaryTabBox(false) { initConfig(); reconfigure(ReconfigureAll); // Caption frame captionFont.setBold(true); captionFont.setPointSize(captionFont.pointSize() * 2); if (effects->compositingType() == OpenGL2Compositing) { m_reflectionShader = ShaderManager::instance()->generateShaderFromResources(ShaderTrait::MapTexture, QString(), QStringLiteral("coverswitch-reflection.glsl")); } else { m_reflectionShader = nullptr; } connect(effects, &EffectsHandler::windowClosed, this, &CoverSwitchEffect::slotWindowClosed); connect(effects, &EffectsHandler::tabBoxAdded, this, &CoverSwitchEffect::slotTabBoxAdded); connect(effects, &EffectsHandler::tabBoxClosed, this, &CoverSwitchEffect::slotTabBoxClosed); connect(effects, &EffectsHandler::tabBoxUpdated, this, &CoverSwitchEffect::slotTabBoxUpdated); connect(effects, &EffectsHandler::tabBoxKeyEvent, this, &CoverSwitchEffect::slotTabBoxKeyEvent); } CoverSwitchEffect::~CoverSwitchEffect() { delete captionFrame; delete m_reflectionShader; } bool CoverSwitchEffect::supported() { return effects->isOpenGLCompositing() && effects->animationsSupported(); } void CoverSwitchEffect::reconfigure(ReconfigureFlags) { CoverSwitchConfig::self()->read(); animationDuration = std::chrono::milliseconds( animationTime(200)); animateSwitch = CoverSwitchConfig::animateSwitch(); animateStart = CoverSwitchConfig::animateStart(); animateStop = CoverSwitchConfig::animateStop(); reflection = CoverSwitchConfig::reflection(); windowTitle = CoverSwitchConfig::windowTitle(); zPosition = CoverSwitchConfig::zPosition(); timeLine.setEasingCurve(QEasingCurve::InOutSine); timeLine.setDuration(animationDuration); // Defined outside the ui primaryTabBox = CoverSwitchConfig::tabBox(); secondaryTabBox = CoverSwitchConfig::tabBoxAlternative(); QColor tmp = CoverSwitchConfig::mirrorFrontColor(); mirrorColor[0][0] = tmp.redF(); mirrorColor[0][1] = tmp.greenF(); mirrorColor[0][2] = tmp.blueF(); mirrorColor[0][3] = 1.0; tmp = CoverSwitchConfig::mirrorRearColor(); mirrorColor[1][0] = tmp.redF(); mirrorColor[1][1] = tmp.greenF(); mirrorColor[1][2] = tmp.blueF(); mirrorColor[1][3] = -1.0; } void CoverSwitchEffect::prePaintScreen(ScreenPrePaintData& data, int time) { if (mActivated || stop || stopRequested) { data.mask |= Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS; if (animation || start || stop) { timeLine.update(std::chrono::milliseconds(time)); } if (selected_window == nullptr) abort(); } effects->prePaintScreen(data, time); } void CoverSwitchEffect::paintScreen(int mask, const QRegion ®ion, ScreenPaintData& data) { effects->paintScreen(mask, region, data); if (mActivated || stop || stopRequested) { QList< EffectWindow* > tempList = currentWindowList; int index = tempList.indexOf(selected_window); if (animation || start || stop) { if (!start && !stop) { if (direction == Right) index++; else index--; if (index < 0) index = tempList.count() + index; if (index >= tempList.count()) index = index % tempList.count(); } foreach (Direction direction, scheduled_directions) { if (direction == Right) index++; else index--; if (index < 0) index = tempList.count() + index; if (index >= tempList.count()) index = index % tempList.count(); } } int leftIndex = index - 1; if (leftIndex < 0) leftIndex = tempList.count() - 1; int rightIndex = index + 1; if (rightIndex == tempList.count()) rightIndex = 0; EffectWindow* frontWindow = tempList[ index ]; leftWindows.clear(); rightWindows.clear(); bool evenWindows = (tempList.count() % 2 == 0) ? true : false; int leftWindowCount = 0; if (evenWindows) leftWindowCount = tempList.count() / 2 - 1; else leftWindowCount = (tempList.count() - 1) / 2; for (int i = 0; i < leftWindowCount; i++) { int tempIndex = (leftIndex - i); if (tempIndex < 0) tempIndex = tempList.count() + tempIndex; leftWindows.prepend(tempList[ tempIndex ]); } int rightWindowCount = 0; if (evenWindows) rightWindowCount = tempList.count() / 2; else rightWindowCount = (tempList.count() - 1) / 2; for (int i = 0; i < rightWindowCount; i++) { int tempIndex = (rightIndex + i) % tempList.count(); rightWindows.prepend(tempList[ tempIndex ]); } if (reflection) { // no reflections during start and stop animation // except when using a shader if ((!start && !stop) || effects->compositingType() == OpenGL2Compositing) paintScene(frontWindow, leftWindows, rightWindows, true); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // we can use a huge scale factor (needed to calculate the rearground vertices) // as we restrict with a PaintClipper painting on the current screen float reflectionScaleFactor = 100000 * tan(60.0 * M_PI / 360.0f) / area.width(); const float width = area.width(); const float height = area.height(); float vertices[] = { -width * 0.5f, height, 0.0, width * 0.5f, height, 0.0, width*reflectionScaleFactor, height, -5000, -width*reflectionScaleFactor, height, -5000 }; // foreground if (start) { mirrorColor[0][3] = timeLine.value(); } else if (stop) { mirrorColor[0][3] = 1.0 - timeLine.value(); } else { mirrorColor[0][3] = 1.0; } int y = 0; // have to adjust the y values to fit OpenGL // in OpenGL y==0 is at bottom, in Qt at top if (effects->numScreens() > 1) { QRect fullArea = effects->clientArea(FullArea, 0, 1); if (fullArea.height() != area.height()) { if (area.y() == 0) y = fullArea.height() - area.height(); else y = fullArea.height() - area.y() - area.height(); } } // use scissor to restrict painting of the reflection plane to current screen glScissor(area.x(), y, area.width(), area.height()); glEnable(GL_SCISSOR_TEST); if (m_reflectionShader && m_reflectionShader->isValid()) { ShaderManager::instance()->pushShader(m_reflectionShader); QMatrix4x4 windowTransformation = data.projectionMatrix(); windowTransformation.translate(area.x() + area.width() * 0.5f, 0.0, 0.0); m_reflectionShader->setUniform(GLShader::ModelViewProjectionMatrix, windowTransformation); m_reflectionShader->setUniform("u_frontColor", QVector4D(mirrorColor[0][0], mirrorColor[0][1], mirrorColor[0][2], mirrorColor[0][3])); m_reflectionShader->setUniform("u_backColor", QVector4D(mirrorColor[1][0], mirrorColor[1][1], mirrorColor[1][2], mirrorColor[1][3])); // TODO: make this one properly QVector verts; QVector texcoords; verts.reserve(18); texcoords.reserve(12); texcoords << 1.0 << 0.0; verts << vertices[6] << vertices[7] << vertices[8]; texcoords << 1.0 << 0.0; verts << vertices[9] << vertices[10] << vertices[11]; texcoords << 0.0 << 0.0; verts << vertices[0] << vertices[1] << vertices[2]; texcoords << 0.0 << 0.0; verts << vertices[0] << vertices[1] << vertices[2]; texcoords << 0.0 << 0.0; verts << vertices[3] << vertices[4] << vertices[5]; texcoords << 1.0 << 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); ShaderManager::instance()->popShader(); } glDisable(GL_SCISSOR_TEST); glDisable(GL_BLEND); } paintScene(frontWindow, leftWindows, rightWindows); // Render the caption frame if (windowTitle) { double opacity = 1.0; if (start) opacity = timeLine.value(); else if (stop) opacity = 1.0 - timeLine.value(); if (animation) captionFrame->setCrossFadeProgress(timeLine.value()); captionFrame->render(region, opacity); } } } void CoverSwitchEffect::postPaintScreen() { if ((mActivated && (animation || start)) || stop || stopRequested) { if (timeLine.done()) { timeLine.reset(); if (stop) { stop = false; effects->setActiveFullScreenEffect(nullptr); foreach (EffectWindow * window, referrencedWindows) { window->unrefWindow(); } referrencedWindows.clear(); currentWindowList.clear(); if (startRequested) { startRequested = false; mActivated = true; effects->refTabBox(); currentWindowList = effects->currentTabBoxWindowList(); if (animateStart) { start = true; } } } else if (!scheduled_directions.isEmpty()) { direction = scheduled_directions.dequeue(); if (start) { animation = true; start = false; } } else { animation = false; start = false; if (stopRequested) { stopRequested = false; stop = true; } } } effects->addRepaintFull(); } effects->postPaintScreen(); } void CoverSwitchEffect::paintScene(EffectWindow* frontWindow, const EffectWindowList& leftWindows, const EffectWindowList& rightWindows, bool reflectedWindows) { // LAYOUT // one window in the front. Other windows left and right rotated // for odd number of windows: left: (n-1)/2; front: 1; right: (n-1)/2 // for even number of windows: left: n/2; front: 1; right: n/2 -1 // // ANIMATION // forward (alt+tab) // all left windows are moved to next position // top most left window is rotated and moved to front window position // front window is rotated and moved to next right window position // right windows are moved to next position // last right window becomes totally transparent in half the time // appears transparent on left side and becomes totally opaque again // backward (alt+shift+tab) same as forward but opposite direction int width = area.width(); int leftWindowCount = leftWindows.count(); int rightWindowCount = rightWindows.count(); // Problem during animation: a window which is painted after another window // appears in front of the other // so during animation the painting order has to be rearreanged // paint sequence no animation: left, right, front // paint sequence forward animation: right, front, left if (!animation) { paintWindows(leftWindows, true, reflectedWindows); paintWindows(rightWindows, false, reflectedWindows); paintFrontWindow(frontWindow, width, leftWindowCount, rightWindowCount, reflectedWindows); } else { if (direction == Right) { if (timeLine.value() < 0.5) { // paint in normal way paintWindows(leftWindows, true, reflectedWindows); paintWindows(rightWindows, false, reflectedWindows); paintFrontWindow(frontWindow, width, leftWindowCount, rightWindowCount, reflectedWindows); } else { paintWindows(rightWindows, false, reflectedWindows); paintFrontWindow(frontWindow, width, leftWindowCount, rightWindowCount, reflectedWindows); paintWindows(leftWindows, true, reflectedWindows, rightWindows.at(0)); } } else { paintWindows(leftWindows, true, reflectedWindows); if (timeLine.value() < 0.5) { paintWindows(rightWindows, false, reflectedWindows); paintFrontWindow(frontWindow, width, leftWindowCount, rightWindowCount, reflectedWindows); } else { EffectWindow* leftWindow; if (leftWindowCount > 0) { leftWindow = leftWindows.at(0); paintFrontWindow(frontWindow, width, leftWindowCount, rightWindowCount, reflectedWindows); } else leftWindow = frontWindow; paintWindows(rightWindows, false, reflectedWindows, leftWindow); } } } } void CoverSwitchEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data) { if (mActivated || stop || stopRequested) { if (!(mask & PAINT_WINDOW_TRANSFORMED) && !w->isDesktop()) { if ((start || stop) && w->isDock()) { data.setOpacity(1.0 - timeLine.value()); if (stop) data.setOpacity(timeLine.value()); } else return; } } if ((start || stop) && (!w->isOnCurrentDesktop() || w->isMinimized())) { if (stop) // Fade out windows not on the current desktop data.setOpacity(1.0 - timeLine.value()); else // Fade in Windows from other desktops when animation is started data.setOpacity(timeLine.value()); } effects->paintWindow(w, mask, region, data); } void CoverSwitchEffect::slotTabBoxAdded(int mode) { if (effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this) return; if (!mActivated) { effects->setShowingDesktop(false); // only for windows mode if (((mode == TabBoxWindowsMode && primaryTabBox) || (mode == TabBoxWindowsAlternativeMode && secondaryTabBox) || (mode == TabBoxCurrentAppWindowsMode && primaryTabBox) || (mode == TabBoxCurrentAppWindowsAlternativeMode && secondaryTabBox)) && effects->currentTabBoxWindowList().count() > 0) { effects->startMouseInterception(this, Qt::ArrowCursor); activeScreen = effects->activeScreen(); if (!stop && !stopRequested) { effects->refTabBox(); effects->setActiveFullScreenEffect(this); scheduled_directions.clear(); selected_window = effects->currentTabBoxWindow(); currentWindowList = effects->currentTabBoxWindowList(); direction = Left; mActivated = true; if (animateStart) { start = true; } // Calculation of correct area area = effects->clientArea(FullScreenArea, activeScreen, effects->currentDesktop()); const QSize screenSize = effects->virtualScreenSize(); scaleFactor = (zPosition + 1100) * 2.0 * tan(60.0 * M_PI / 360.0f) / screenSize.width(); if (screenSize.width() - area.width() != 0) { // one of the screens is smaller than the other (horizontal) if (area.width() < screenSize.width() - area.width()) scaleFactor *= (float)area.width() / (float)(screenSize.width() - area.width()); else if (area.width() != screenSize.width() - area.width()) { // vertical layout with different width // but we don't want to catch screens with same width and different height if (screenSize.height() != area.height()) scaleFactor *= (float)area.width() / (float)(screenSize.width()); } } if (effects->numScreens() > 1) { // unfortunatelly we have to change the projection matrix in dual screen mode // code is adapted from SceneOpenGL2::createProjectionMatrix() QRect fullRect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop()); float fovy = 60.0f; float aspect = 1.0f; float zNear = 0.1f; float zFar = 100.0f; float ymax = zNear * std::tan(fovy * M_PI / 360.0f); float ymin = -ymax; float xmin = ymin * aspect; float xmax = ymax * aspect; if (area.width() != fullRect.width()) { if (area.x() == 0) { // horizontal layout: left screen xmin *= (float)area.width() / (float)fullRect.width(); xmax *= (fullRect.width() - 0.5f * area.width()) / (0.5f * fullRect.width()); } else { // horizontal layout: right screen xmin *= (fullRect.width() - 0.5f * area.width()) / (0.5f * fullRect.width()); xmax *= (float)area.width() / (float)fullRect.width(); } } if (area.height() != fullRect.height()) { if (area.y() == 0) { // vertical layout: top screen ymin *= (fullRect.height() - 0.5f * area.height()) / (0.5f * fullRect.height()); ymax *= (float)area.height() / (float)fullRect.height(); } else { // vertical layout: bottom screen ymin *= (float)area.height() / (float)fullRect.height(); ymax *= (fullRect.height() - 0.5f * area.height()) / (0.5f * fullRect.height()); } } m_projectionMatrix = QMatrix4x4(); m_projectionMatrix.frustum(xmin, xmax, ymin, ymax, zNear, zFar); const float scaleFactor = 1.1f / zNear; // Create a second matrix that transforms screen coordinates // to world coordinates. QMatrix4x4 matrix; matrix.translate(xmin * scaleFactor, ymax * scaleFactor, -1.1); matrix.scale( (xmax - xmin) * scaleFactor / fullRect.width(), -(ymax - ymin) * scaleFactor / fullRect.height(), 0.001); // Combine the matrices m_projectionMatrix *= matrix; m_modelviewMatrix = QMatrix4x4(); m_modelviewMatrix.translate(area.x(), area.y(), 0.0); } // Setup caption frame geometry if (windowTitle) { QRect frameRect = QRect(area.width() * 0.25f + area.x(), area.height() * 0.9f + area.y(), area.width() * 0.5f, QFontMetrics(captionFont).height()); if (!captionFrame) { captionFrame = effects->effectFrame(EffectFrameStyled); captionFrame->setFont(captionFont); captionFrame->enableCrossFade(true); } captionFrame->setGeometry(frameRect); captionFrame->setIconSize(QSize(frameRect.height(), frameRect.height())); // And initial contents updateCaption(); } effects->addRepaintFull(); } else { startRequested = true; } } } } void CoverSwitchEffect::slotTabBoxClosed() { if (mActivated) { if (animateStop) { if (!animation && !start) { stop = true; } else if (start && scheduled_directions.isEmpty()) { start = false; stop = true; timeLine.setElapsed(timeLine.duration() - timeLine.elapsed()); } else { stopRequested = true; } } else { effects->setActiveFullScreenEffect(nullptr); start = false; animation = false; timeLine.reset(); } mActivated = false; effects->unrefTabBox(); effects->stopMouseInterception(this); effects->addRepaintFull(); } } void CoverSwitchEffect::slotTabBoxUpdated() { if (mActivated) { if (animateSwitch && currentWindowList.count() > 1) { // determine the switch direction if (selected_window != effects->currentTabBoxWindow()) { if (selected_window != nullptr) { int old_index = currentWindowList.indexOf(selected_window); int new_index = effects->currentTabBoxWindowList().indexOf(effects->currentTabBoxWindow()); Direction new_direction; int distance = new_index - old_index; if (distance > 0) new_direction = Left; if (distance < 0) new_direction = Right; if (effects->currentTabBoxWindowList().count() == 2) { new_direction = Left; distance = 1; } if (distance != 0) { distance = abs(distance); int tempDistance = effects->currentTabBoxWindowList().count() - distance; if (tempDistance < abs(distance)) { distance = tempDistance; if (new_direction == Left) new_direction = Right; else new_direction = Left; } if (!animation && !start) { animation = true; direction = new_direction; distance--; } for (int i = 0; i < distance; i++) { if (!scheduled_directions.isEmpty() && scheduled_directions.last() != new_direction) scheduled_directions.pop_back(); else scheduled_directions.enqueue(new_direction); if (scheduled_directions.count() == effects->currentTabBoxWindowList().count()) scheduled_directions.clear(); } } } selected_window = effects->currentTabBoxWindow(); currentWindowList = effects->currentTabBoxWindowList(); updateCaption(); } } effects->addRepaintFull(); } } void CoverSwitchEffect::paintWindowCover(EffectWindow* w, bool reflectedWindow, WindowPaintData& data) { QRect windowRect = w->geometry(); data.setYTranslation(area.height() - windowRect.y() - windowRect.height()); data.setZTranslation(-zPosition); if (start) { if (w->isMinimized()) { data.multiplyOpacity(timeLine.value()); } else { const QVector3D translation = data.translation() * timeLine.value(); data.setXTranslation(translation.x()); data.setYTranslation(translation.y()); data.setZTranslation(translation.z()); if (effects->numScreens() > 1) { QRect clientRect = effects->clientArea(FullScreenArea, w->screen(), effects->currentDesktop()); QRect fullRect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop()); if (w->screen() == activeScreen) { if (clientRect.width() != fullRect.width() && clientRect.x() != fullRect.x()) { data.translate(- clientRect.x() * (1.0f - timeLine.value())); } if (clientRect.height() != fullRect.height() && clientRect.y() != fullRect.y()) { data.translate(0.0, - clientRect.y() * (1.0f - timeLine.value())); } } else { if (clientRect.width() != fullRect.width() && clientRect.x() < area.x()) { data.translate(- clientRect.width() * (1.0f - timeLine.value())); } if (clientRect.height() != fullRect.height() && clientRect.y() < area.y()) { data.translate(0.0, - clientRect.height() * (1.0f - timeLine.value())); } } } data.setRotationAngle(data.rotationAngle() * timeLine.value()); } } if (stop) { if (w->isMinimized() && w != effects->activeWindow()) { data.multiplyOpacity(1.0 - timeLine.value()); } else { const QVector3D translation = data.translation() * (1.0 - timeLine.value()); data.setXTranslation(translation.x()); data.setYTranslation(translation.y()); data.setZTranslation(translation.z()); if (effects->numScreens() > 1) { QRect clientRect = effects->clientArea(FullScreenArea, w->screen(), effects->currentDesktop()); QRect rect = effects->clientArea(FullScreenArea, activeScreen, effects->currentDesktop()); QRect fullRect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop()); if (w->screen() == activeScreen) { if (clientRect.width() != fullRect.width() && clientRect.x() != fullRect.x()) { data.translate(- clientRect.x() * timeLine.value()); } if (clientRect.height() != fullRect.height() && clientRect.y() != fullRect.y()) { data.translate(0.0, - clientRect.y() * timeLine.value()); } } else { if (clientRect.width() != fullRect.width() && clientRect.x() < rect.x()) { data.translate(- clientRect.width() * timeLine.value()); } if (clientRect.height() != fullRect.height() && clientRect.y() < area.y()) { data.translate(0.0, - clientRect.height() * timeLine.value()); } } } data.setRotationAngle(data.rotationAngle() * (1.0 - timeLine.value())); } } if (reflectedWindow) { QMatrix4x4 reflectionMatrix; reflectionMatrix.scale(1.0, -1.0, 1.0); data.setModelViewMatrix(reflectionMatrix*data.modelViewMatrix()); data.setYTranslation(- area.height() - windowRect.y() - windowRect.height()); if (start) { data.multiplyOpacity(timeLine.value()); } else if (stop) { data.multiplyOpacity(1.0 - timeLine.value()); } effects->drawWindow(w, PAINT_WINDOW_TRANSFORMED, infiniteRegion(), data); } else { effects->paintWindow(w, PAINT_WINDOW_TRANSFORMED, infiniteRegion(), data); } } void CoverSwitchEffect::paintFrontWindow(EffectWindow* frontWindow, int width, int leftWindows, int rightWindows, bool reflectedWindow) { if (frontWindow == nullptr) return; bool specialHandlingForward = false; WindowPaintData data(frontWindow); if (effects->numScreens() > 1) { data.setProjectionMatrix(m_projectionMatrix); data.setModelViewMatrix(m_modelviewMatrix); } data.setXTranslation(area.width() * 0.5 - frontWindow->geometry().x() - frontWindow->geometry().width() * 0.5); if (leftWindows == 0) { leftWindows = 1; if (!start && !stop) specialHandlingForward = true; } if (rightWindows == 0) { rightWindows = 1; } if (animation) { float distance = 0.0; const QSize screenSize = effects->virtualScreenSize(); if (direction == Right) { // move to right distance = -frontWindow->geometry().width() * 0.5f + area.width() * 0.5f + (((float)screenSize.width() * 0.5 * scaleFactor) - (float)area.width() * 0.5f) / rightWindows; data.translate(distance * timeLine.value()); data.setRotationAxis(Qt::YAxis); data.setRotationAngle(-angle * timeLine.value()); data.setRotationOrigin(QVector3D(frontWindow->geometry().width(), 0.0, 0.0)); } else { // move to left distance = frontWindow->geometry().width() * 0.5f - area.width() * 0.5f + ((float)width * 0.5f - ((float)screenSize.width() * 0.5 * scaleFactor)) / leftWindows; float factor = 1.0; if (specialHandlingForward) factor = 2.0; data.translate(distance * timeLine.value() * factor); data.setRotationAxis(Qt::YAxis); data.setRotationAngle(angle * timeLine.value()); } } if (specialHandlingForward && timeLine.value() < 0.5) { data.multiplyOpacity(1.0 - timeLine.value() * 2.0); } paintWindowCover(frontWindow, reflectedWindow, data); } void CoverSwitchEffect::paintWindows(const EffectWindowList& windows, bool left, bool reflectedWindows, EffectWindow* additionalWindow) { int width = area.width(); int windowCount = windows.count(); EffectWindow* window; int rotateFactor = 1; if (!left) { rotateFactor = -1; } const QSize screenSize = effects->virtualScreenSize(); float xTranslate = -((float)(width) * 0.5f - ((float)screenSize.width() * 0.5 * scaleFactor)); if (!left) xTranslate = ((float)screenSize.width() * 0.5 * scaleFactor) - (float)width * 0.5f; // handling for additional window from other side // has to appear on this side after half of the time if (animation && timeLine.value() >= 0.5 && additionalWindow != nullptr) { WindowPaintData data(additionalWindow); if (effects->numScreens() > 1) { data.setProjectionMatrix(m_projectionMatrix); data.setModelViewMatrix(m_modelviewMatrix); } data.setRotationAxis(Qt::YAxis); data.setRotationAngle(angle * rotateFactor); if (left) { data.translate(-xTranslate - additionalWindow->geometry().x()); } else { data.translate(xTranslate + area.width() - additionalWindow->geometry().x() - additionalWindow->geometry().width()); data.setRotationOrigin(QVector3D(additionalWindow->geometry().width(), 0.0, 0.0)); } data.multiplyOpacity((timeLine.value() - 0.5) * 2.0); paintWindowCover(additionalWindow, reflectedWindows, data); } // normal behaviour for (int i = 0; i < windows.count(); i++) { window = windows.at(i); if (window == nullptr || window->isDeleted()) { continue; } WindowPaintData data(window); if (effects->numScreens() > 1) { data.setProjectionMatrix(m_projectionMatrix); data.setModelViewMatrix(m_modelviewMatrix); } data.setRotationAxis(Qt::YAxis); data.setRotationAngle(angle); if (left) data.translate(-xTranslate + xTranslate * i / windowCount - window->geometry().x()); else data.translate(xTranslate + width - xTranslate * i / windowCount - window->geometry().x() - window->geometry().width()); if (animation) { if (direction == Right) { if ((i == windowCount - 1) && left) { // right most window on left side -> move to front // have to move one window distance plus half the difference between the window and the desktop size data.translate((xTranslate / windowCount + (width - window->geometry().width()) * 0.5f) * timeLine.value()); data.setRotationAngle(angle - angle * timeLine.value()); } // right most window does not have to be moved else if (!left && (i == 0)); // do nothing else { // all other windows - move to next position data.translate(xTranslate / windowCount * timeLine.value()); } } else { if ((i == windowCount - 1) && !left) { // left most window on right side -> move to front data.translate(- (xTranslate / windowCount + (width - window->geometry().width()) * 0.5f) * timeLine.value()); data.setRotationAngle(angle - angle * timeLine.value()); } // left most window does not have to be moved else if (i == 0 && left); // do nothing else { // all other windows - move to next position data.translate(- xTranslate / windowCount * timeLine.value()); } } } if (!left) data.setRotationOrigin(QVector3D(window->geometry().width(), 0.0, 0.0)); data.setRotationAngle(data.rotationAngle() * rotateFactor); // make window most to edge transparent if animation if (animation && i == 0 && ((direction == Left && left) || (direction == Right && !left))) { // only for the first half of the animation if (timeLine.value() < 0.5) { data.multiplyOpacity((1.0 - timeLine.value() * 2.0)); paintWindowCover(window, reflectedWindows, data); } } else { paintWindowCover(window, reflectedWindows, data); } } } void CoverSwitchEffect::windowInputMouseEvent(QEvent* e) { if (e->type() != QEvent::MouseButtonPress) return; // we don't want click events during animations if (animation) return; QMouseEvent* event = static_cast< QMouseEvent* >(e); switch (event->button()) { case Qt::XButton1: // wheel up selectPreviousWindow(); break; case Qt::XButton2: // wheel down selectNextWindow(); break; case Qt::LeftButton: case Qt::RightButton: case Qt::MiddleButton: default: QPoint pos = event->pos(); // determine if a window has been clicked // not interested in events above a fullscreen window (ignoring panel size) if (pos.y() < (area.height()*scaleFactor - area.height()) * 0.5f *(1.0f / scaleFactor)) return; // if there is no selected window (that is no window at all) we cannot click it if (!selected_window) return; if (pos.x() < (area.width()*scaleFactor - selected_window->width()) * 0.5f *(1.0f / scaleFactor)) { float availableSize = (area.width() * scaleFactor - area.width()) * 0.5f * (1.0f / scaleFactor); for (int i = 0; i < leftWindows.count(); i++) { int windowPos = availableSize / leftWindows.count() * i; if (pos.x() < windowPos) continue; if (i + 1 < leftWindows.count()) { if (pos.x() > availableSize / leftWindows.count()*(i + 1)) continue; } effects->setTabBoxWindow(leftWindows[i]); return; } } if (pos.x() > area.width() - (area.width()*scaleFactor - selected_window->width()) * 0.5f *(1.0f / scaleFactor)) { float availableSize = (area.width() * scaleFactor - area.width()) * 0.5f * (1.0f / scaleFactor); for (int i = 0; i < rightWindows.count(); i++) { int windowPos = area.width() - availableSize / rightWindows.count() * i; if (pos.x() > windowPos) continue; if (i + 1 < rightWindows.count()) { if (pos.x() < area.width() - availableSize / rightWindows.count()*(i + 1)) continue; } effects->setTabBoxWindow(rightWindows[i]); return; } } break; } } void CoverSwitchEffect::abort() { // it's possible that abort is called after tabbox has been closed // in this case the cleanup is already done (see bug 207554) if (mActivated) { effects->unrefTabBox(); effects->stopMouseInterception(this); } effects->setActiveFullScreenEffect(nullptr); timeLine.reset(); mActivated = false; stop = false; stopRequested = false; effects->addRepaintFull(); captionFrame->free(); } void CoverSwitchEffect::slotWindowClosed(EffectWindow* c) { if (c == selected_window) selected_window = nullptr; // if the list is not empty, the effect is active if (!currentWindowList.isEmpty()) { c->refWindow(); referrencedWindows.append(c); currentWindowList.removeAll(c); leftWindows.removeAll(c); rightWindows.removeAll(c); } } bool CoverSwitchEffect::isActive() const { return (mActivated || stop || stopRequested) && !effects->isScreenLocked(); } void CoverSwitchEffect::updateCaption() { if (!selected_window || !windowTitle) { return; } if (selected_window->isDesktop()) { captionFrame->setText(i18nc("Special entry in alt+tab list for minimizing all windows", "Show Desktop")); static QPixmap pix = QIcon::fromTheme(QStringLiteral("user-desktop")).pixmap(captionFrame->iconSize()); captionFrame->setIcon(pix); } else { captionFrame->setText(selected_window->caption()); captionFrame->setIcon(selected_window->icon()); } } void CoverSwitchEffect::slotTabBoxKeyEvent(QKeyEvent *event) { if (event->type() == QEvent::KeyPress) { switch (event->key()) { case Qt::Key_Left: selectPreviousWindow(); break; case Qt::Key_Right: selectNextWindow(); break; default: // nothing break; } } } void CoverSwitchEffect::selectNextOrPreviousWindow(bool forward) { if (!mActivated || !selected_window) { return; } const int index = effects->currentTabBoxWindowList().indexOf(selected_window); int newIndex = index; if (forward) { ++newIndex; } else { --newIndex; } if (newIndex == effects->currentTabBoxWindowList().size()) { newIndex = 0; } else if (newIndex < 0) { newIndex = effects->currentTabBoxWindowList().size() -1; } if (index == newIndex) { return; } effects->setTabBoxWindow(effects->currentTabBoxWindowList().at(newIndex)); } } // namespace