62a7db7028
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
374 lines
17 KiB
C++
374 lines
17 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2008 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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// based on minimize animation by Rivo Laks <rivolaks@hot.ee>
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#include "magiclamp.h"
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// KConfigSkeleton
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#include "magiclampconfig.h"
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namespace KWin
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{
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MagicLampEffect::MagicLampEffect()
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{
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initConfig<MagicLampConfig>();
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reconfigure(ReconfigureAll);
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connect(effects, &EffectsHandler::windowDeleted, this, &MagicLampEffect::slotWindowDeleted);
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connect(effects, &EffectsHandler::windowMinimized, this, &MagicLampEffect::slotWindowMinimized);
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connect(effects, &EffectsHandler::windowUnminimized, this, &MagicLampEffect::slotWindowUnminimized);
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}
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bool MagicLampEffect::supported()
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{
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return effects->isOpenGLCompositing() && effects->animationsSupported();
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}
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void MagicLampEffect::reconfigure(ReconfigureFlags)
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{
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MagicLampConfig::self()->read();
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// TODO: Rename animationDuration to duration so we can use
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// animationTime<MagicLampConfig>(250).
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const int d = MagicLampConfig::animationDuration() != 0
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? MagicLampConfig::animationDuration()
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: 250;
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m_duration = std::chrono::milliseconds(static_cast<int>(animationTime(d)));
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}
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void MagicLampEffect::prePaintScreen(ScreenPrePaintData& data, int time)
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{
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const std::chrono::milliseconds delta(time);
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auto animationIt = m_animations.begin();
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while (animationIt != m_animations.end()) {
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(*animationIt).update(delta);
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++animationIt;
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}
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// We need to mark the screen windows as transformed. Otherwise the
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// whole screen won't be repainted, resulting in artefacts.
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data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
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effects->prePaintScreen(data, time);
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}
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void MagicLampEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
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{
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// Schedule window for transformation if the animation is still in
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// progress
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if (m_animations.contains(w)) {
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// We'll transform this window
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data.setTransformed();
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data.quads = data.quads.makeGrid(40);
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w->enablePainting(EffectWindow::PAINT_DISABLED_BY_MINIMIZE);
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}
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effects->prePaintWindow(w, data, time);
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}
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void MagicLampEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
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{
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auto animationIt = m_animations.constFind(w);
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if (animationIt != m_animations.constEnd()) {
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// 0 = not minimized, 1 = fully minimized
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const qreal progress = (*animationIt).value();
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QRect geo = w->geometry();
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QRect icon = w->iconGeometry();
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IconPosition position = Top;
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// If there's no icon geometry, minimize to the center of the screen
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if (!icon.isValid()) {
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QRect extG = geo;
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QPoint pt = cursorPos();
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// focussing inside the window is no good, leads to ugly artefacts, find nearest border
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if (extG.contains(pt)) {
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const int d[2][2] = { {pt.x() - extG.x(), extG.right() - pt.x()},
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{pt.y() - extG.y(), extG.bottom() - pt.y()}
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};
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int di = d[1][0];
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position = Top;
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if (d[0][0] < di) {
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di = d[0][0];
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position = Left;
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}
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if (d[1][1] < di) {
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di = d[1][1];
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position = Bottom;
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}
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if (d[0][1] < di)
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position = Right;
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switch(position) {
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case Top: pt.setY(extG.y()); break;
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case Left: pt.setX(extG.x()); break;
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case Bottom: pt.setY(extG.bottom()); break;
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case Right: pt.setX(extG.right()); break;
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}
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} else {
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if (pt.y() < geo.y())
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position = Top;
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else if (pt.x() < geo.x())
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position = Left;
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else if (pt.y() > geo.bottom())
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position = Bottom;
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else if (pt.x() > geo.right())
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position = Right;
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}
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icon = QRect(pt, QSize(0, 0));
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} else {
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// Assumption: there is a panel containing the icon position
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EffectWindow* panel = nullptr;
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foreach (EffectWindow * window, effects->stackingOrder()) {
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if (!window->isDock())
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continue;
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// we have to use intersects as there seems to be a Plasma bug
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// the published icon geometry might be bigger than the panel
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if (window->geometry().intersects(icon)) {
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panel = window;
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break;
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}
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}
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if (panel) {
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// Assumption: width of horizonal panel is greater than its height and vice versa
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// The panel has to border one screen edge, so get it's screen area
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QRect panelScreen = effects->clientArea(ScreenArea, panel);
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if (panel->width() >= panel->height()) {
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// horizontal panel
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if (panel->y() == panelScreen.y())
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position = Top;
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else
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position = Bottom;
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} else {
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// vertical panel
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if (panel->x() == panelScreen.x())
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position = Left;
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else
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position = Right;
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}
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} else {
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// we did not find a panel, so it might be autohidden
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QRect iconScreen = effects->clientArea(ScreenArea, icon.topLeft(), effects->currentDesktop());
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// as the icon geometry could be overlap a screen edge we use an intersection
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QRect rect = iconScreen.intersected(icon);
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// here we need a different assumption: icon geometry borders one screen edge
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// this assumption might be wrong for e.g. task applet being the only applet in panel
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// in this case the icon borders two screen edges
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// there might be a wrong animation, but not distorted
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if (rect.x() == iconScreen.x()) {
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position = Left;
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} else if (rect.x() + rect.width() == iconScreen.x() + iconScreen.width()) {
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position = Right;
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} else if (rect.y() == iconScreen.y()) {
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position = Top;
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} else {
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position = Bottom;
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}
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}
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}
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#define SANITIZE_PROGRESS if (p_progress[0] < 0)\
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p_progress[0] = -p_progress[0];\
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if (p_progress[1] < 0)\
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p_progress[1] = -p_progress[1]
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#define SET_QUADS(_SET_A_, _A_, _DA_, _SET_B_, _B_, _O0_, _O1_, _O2_, _O3_) quad[0]._SET_A_((icon._A_() + icon._DA_()*(quad[0]._A_() / geo._DA_()) - (quad[0]._A_() + geo._A_()))*p_progress[_O0_] + quad[0]._A_());\
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quad[1]._SET_A_((icon._A_() + icon._DA_()*(quad[1]._A_() / geo._DA_()) - (quad[1]._A_() + geo._A_()))*p_progress[_O1_] + quad[1]._A_());\
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quad[2]._SET_A_((icon._A_() + icon._DA_()*(quad[2]._A_() / geo._DA_()) - (quad[2]._A_() + geo._A_()))*p_progress[_O2_] + quad[2]._A_());\
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quad[3]._SET_A_((icon._A_() + icon._DA_()*(quad[3]._A_() / geo._DA_()) - (quad[3]._A_() + geo._A_()))*p_progress[_O3_] + quad[3]._A_());\
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\
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quad[0]._SET_B_(quad[0]._B_() + offset[_O0_]);\
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quad[1]._SET_B_(quad[1]._B_() + offset[_O1_]);\
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quad[2]._SET_B_(quad[2]._B_() + offset[_O2_]);\
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quad[3]._SET_B_(quad[3]._B_() + offset[_O3_])
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WindowQuadList newQuads;
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newQuads.reserve(data.quads.count());
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float quadFactor; // defines how fast a quad is vertically moved: y coordinates near to window top are slowed down
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// it is used as quadFactor^3/windowHeight^3
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// quadFactor is the y position of the quad but is changed towards becomming the window height
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// by that the factor becomes 1 and has no influence any more
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float offset[2] = {0,0}; // how far has a quad to be moved? Distance between icon and window multiplied by the progress and by the quadFactor
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float p_progress[2] = {0,0}; // the factor which defines how far the x values have to be changed
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// factor is the current moved y value diveded by the distance between icon and window
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WindowQuad lastQuad(WindowQuadError);
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lastQuad[0].setX(-1);
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lastQuad[0].setY(-1);
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lastQuad[1].setX(-1);
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lastQuad[1].setY(-1);
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lastQuad[2].setX(-1);
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lastQuad[2].setY(-1);
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if (position == Bottom) {
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float height_cube = float(geo.height()) * float(geo.height()) * float(geo.height());
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foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
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if (quad[0].y() != lastQuad[0].y() || quad[2].y() != lastQuad[2].y()) {
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quadFactor = quad[0].y() + (geo.height() - quad[0].y()) * progress;
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offset[0] = (icon.y() + quad[0].y() - geo.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
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quadFactor = quad[2].y() + (geo.height() - quad[2].y()) * progress;
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offset[1] = (icon.y() + quad[2].y() - geo.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
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p_progress[1] = qMin(offset[1] / (icon.y() + icon.height() - geo.y() - float(quad[2].y())), 1.0f);
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p_progress[0] = qMin(offset[0] / (icon.y() + icon.height() - geo.y() - float(quad[0].y())), 1.0f);
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} else
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lastQuad = quad;
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SANITIZE_PROGRESS;
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// x values are moved towards the center of the icon
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SET_QUADS(setX, x, width, setY, y, 0,0,1,1);
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newQuads.append(quad);
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}
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} else if (position == Top) {
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float height_cube = float(geo.height()) * float(geo.height()) * float(geo.height());
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foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
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if (quad[0].y() != lastQuad[0].y() || quad[2].y() != lastQuad[2].y()) {
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quadFactor = geo.height() - quad[0].y() + (quad[0].y()) * progress;
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offset[0] = (geo.y() - icon.height() + geo.height() + quad[0].y() - icon.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
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quadFactor = geo.height() - quad[2].y() + (quad[2].y()) * progress;
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offset[1] = (geo.y() - icon.height() + geo.height() + quad[2].y() - icon.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
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p_progress[0] = qMin(offset[0] / (geo.y() - icon.height() + geo.height() - icon.y() - float(geo.height() - quad[0].y())), 1.0f);
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p_progress[1] = qMin(offset[1] / (geo.y() - icon.height() + geo.height() - icon.y() - float(geo.height() - quad[2].y())), 1.0f);
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} else
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lastQuad = quad;
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offset[0] = -offset[0];
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offset[1] = -offset[1];
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SANITIZE_PROGRESS;
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// x values are moved towards the center of the icon
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SET_QUADS(setX, x, width, setY, y, 0,0,1,1);
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newQuads.append(quad);
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}
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} else if (position == Left) {
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float width_cube = float(geo.width()) * float(geo.width()) * float(geo.width());
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foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
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if (quad[0].x() != lastQuad[0].x() || quad[1].x() != lastQuad[1].x()) {
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quadFactor = geo.width() - quad[0].x() + (quad[0].x()) * progress;
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offset[0] = (geo.x() - icon.width() + geo.width() + quad[0].x() - icon.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
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quadFactor = geo.width() - quad[1].x() + (quad[1].x()) * progress;
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offset[1] = (geo.x() - icon.width() + geo.width() + quad[1].x() - icon.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
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p_progress[0] = qMin(offset[0] / (geo.x() - icon.width() + geo.width() - icon.x() - float(geo.width() - quad[0].x())), 1.0f);
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p_progress[1] = qMin(offset[1] / (geo.x() - icon.width() + geo.width() - icon.x() - float(geo.width() - quad[1].x())), 1.0f);
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} else
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lastQuad = quad;
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offset[0] = -offset[0];
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offset[1] = -offset[1];
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SANITIZE_PROGRESS;
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// y values are moved towards the center of the icon
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SET_QUADS(setY, y, height, setX, x, 0,1,1,0);
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newQuads.append(quad);
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}
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} else if (position == Right) {
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float width_cube = float(geo.width()) * float(geo.width()) * float(geo.width());
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foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
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if (quad[0].x() != lastQuad[0].x() || quad[1].x() != lastQuad[1].x()) {
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quadFactor = quad[0].x() + (geo.width() - quad[0].x()) * progress;
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offset[0] = (icon.x() + quad[0].x() - geo.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
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quadFactor = quad[1].x() + (geo.width() - quad[1].x()) * progress;
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offset[1] = (icon.x() + quad[1].x() - geo.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
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p_progress[0] = qMin(offset[0] / (icon.x() + icon.width() - geo.x() - float(quad[0].x())), 1.0f);
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p_progress[1] = qMin(offset[1] / (icon.x() + icon.width() - geo.x() - float(quad[1].x())), 1.0f);
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} else
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lastQuad = quad;
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SANITIZE_PROGRESS;
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// y values are moved towards the center of the icon
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SET_QUADS(setY, y, height, setX, x, 0,1,1,0);
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newQuads.append(quad);
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}
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}
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data.quads = newQuads;
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}
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// Call the next effect.
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effects->paintWindow(w, mask, region, data);
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}
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void MagicLampEffect::postPaintScreen()
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{
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auto animationIt = m_animations.begin();
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while (animationIt != m_animations.end()) {
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if ((*animationIt).done()) {
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animationIt = m_animations.erase(animationIt);
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} else {
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++animationIt;
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}
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}
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effects->addRepaintFull();
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// Call the next effect.
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effects->postPaintScreen();
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}
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void MagicLampEffect::slotWindowDeleted(EffectWindow* w)
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{
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m_animations.remove(w);
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}
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void MagicLampEffect::slotWindowMinimized(EffectWindow* w)
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{
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if (effects->activeFullScreenEffect())
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return;
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TimeLine &timeLine = m_animations[w];
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if (timeLine.running()) {
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timeLine.toggleDirection();
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} else {
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timeLine.setDirection(TimeLine::Forward);
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timeLine.setDuration(m_duration);
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timeLine.setEasingCurve(QEasingCurve::Linear);
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}
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effects->addRepaintFull();
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}
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void MagicLampEffect::slotWindowUnminimized(EffectWindow* w)
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{
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if (effects->activeFullScreenEffect())
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return;
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TimeLine &timeLine = m_animations[w];
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if (timeLine.running()) {
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timeLine.toggleDirection();
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} else {
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timeLine.setDirection(TimeLine::Backward);
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timeLine.setDuration(m_duration);
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timeLine.setEasingCurve(QEasingCurve::Linear);
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}
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effects->addRepaintFull();
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}
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bool MagicLampEffect::isActive() const
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{
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return !m_animations.isEmpty();
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}
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} // namespace
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