kwin/effects/magiclamp/magiclamp.cpp
xinbo wang 44b2a3f872 fix: magiclamp effect wrong direction.
if the dock is on the top,and the dock is not close together with screen edge.
for example,the dock is 10 pixels taller then sceen edge,the "position" will be "Bottom".
Autually,the dock is on the top of screen.
2020-11-18 10:06:06 +00:00

363 lines
16 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2008 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
// based on minimize animation by Rivo Laks <rivolaks@hot.ee>
#include "magiclamp.h"
// KConfigSkeleton
#include "magiclampconfig.h"
namespace KWin
{
MagicLampEffect::MagicLampEffect()
{
initConfig<MagicLampConfig>();
reconfigure(ReconfigureAll);
connect(effects, &EffectsHandler::windowDeleted, this, &MagicLampEffect::slotWindowDeleted);
connect(effects, &EffectsHandler::windowMinimized, this, &MagicLampEffect::slotWindowMinimized);
connect(effects, &EffectsHandler::windowUnminimized, this, &MagicLampEffect::slotWindowUnminimized);
}
bool MagicLampEffect::supported()
{
return effects->isOpenGLCompositing() && effects->animationsSupported();
}
void MagicLampEffect::reconfigure(ReconfigureFlags)
{
MagicLampConfig::self()->read();
// TODO: Rename animationDuration to duration so we can use
// animationTime<MagicLampConfig>(250).
const int d = MagicLampConfig::animationDuration() != 0
? MagicLampConfig::animationDuration()
: 250;
m_duration = std::chrono::milliseconds(static_cast<int>(animationTime(d)));
}
void MagicLampEffect::prePaintScreen(ScreenPrePaintData& data, int time)
{
const std::chrono::milliseconds delta(time);
auto animationIt = m_animations.begin();
while (animationIt != m_animations.end()) {
(*animationIt).update(delta);
++animationIt;
}
// We need to mark the screen windows as transformed. Otherwise the
// whole screen won't be repainted, resulting in artefacts.
data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
effects->prePaintScreen(data, time);
}
void MagicLampEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
{
// Schedule window for transformation if the animation is still in
// progress
if (m_animations.contains(w)) {
// We'll transform this window
data.setTransformed();
data.quads = data.quads.makeGrid(40);
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_MINIMIZE);
}
effects->prePaintWindow(w, data, time);
}
void MagicLampEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
auto animationIt = m_animations.constFind(w);
if (animationIt != m_animations.constEnd()) {
// 0 = not minimized, 1 = fully minimized
const qreal progress = (*animationIt).value();
QRect geo = w->geometry();
QRect icon = w->iconGeometry();
IconPosition position = Top;
// If there's no icon geometry, minimize to the center of the screen
if (!icon.isValid()) {
QRect extG = geo;
QPoint pt = cursorPos();
// focussing inside the window is no good, leads to ugly artefacts, find nearest border
if (extG.contains(pt)) {
const int d[2][2] = { {pt.x() - extG.x(), extG.right() - pt.x()},
{pt.y() - extG.y(), extG.bottom() - pt.y()}
};
int di = d[1][0];
position = Top;
if (d[0][0] < di) {
di = d[0][0];
position = Left;
}
if (d[1][1] < di) {
di = d[1][1];
position = Bottom;
}
if (d[0][1] < di)
position = Right;
switch(position) {
case Top: pt.setY(extG.y()); break;
case Left: pt.setX(extG.x()); break;
case Bottom: pt.setY(extG.bottom()); break;
case Right: pt.setX(extG.right()); break;
}
} else {
if (pt.y() < geo.y())
position = Top;
else if (pt.x() < geo.x())
position = Left;
else if (pt.y() > geo.bottom())
position = Bottom;
else if (pt.x() > geo.right())
position = Right;
}
icon = QRect(pt, QSize(0, 0));
} else {
// Assumption: there is a panel containing the icon position
EffectWindow* panel = nullptr;
foreach (EffectWindow * window, effects->stackingOrder()) {
if (!window->isDock())
continue;
// we have to use intersects as there seems to be a Plasma bug
// the published icon geometry might be bigger than the panel
if (window->geometry().intersects(icon)) {
panel = window;
break;
}
}
if (panel) {
// Assumption: width of horizonal panel is greater than its height and vice versa
// The panel has to border one screen edge, so get it's screen area
QRect panelScreen = effects->clientArea(ScreenArea, panel);
if (panel->width() >= panel->height()) {
// horizontal panel
if (panel->y() <= panelScreen.height()/2)
position = Top;
else
position = Bottom;
} else {
// vertical panel
if (panel->x() <= panelScreen.width()/2)
position = Left;
else
position = Right;
}
} else {
// we did not find a panel, so it might be autohidden
QRect iconScreen = effects->clientArea(ScreenArea, icon.topLeft(), effects->currentDesktop());
// as the icon geometry could be overlap a screen edge we use an intersection
QRect rect = iconScreen.intersected(icon);
// here we need a different assumption: icon geometry borders one screen edge
// this assumption might be wrong for e.g. task applet being the only applet in panel
// in this case the icon borders two screen edges
// there might be a wrong animation, but not distorted
if (rect.x() == iconScreen.x()) {
position = Left;
} else if (rect.x() + rect.width() == iconScreen.x() + iconScreen.width()) {
position = Right;
} else if (rect.y() == iconScreen.y()) {
position = Top;
} else {
position = Bottom;
}
}
}
#define SANITIZE_PROGRESS if (p_progress[0] < 0)\
p_progress[0] = -p_progress[0];\
if (p_progress[1] < 0)\
p_progress[1] = -p_progress[1]
#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_());\
quad[1]._SET_A_((icon._A_() + icon._DA_()*(quad[1]._A_() / geo._DA_()) - (quad[1]._A_() + geo._A_()))*p_progress[_O1_] + quad[1]._A_());\
quad[2]._SET_A_((icon._A_() + icon._DA_()*(quad[2]._A_() / geo._DA_()) - (quad[2]._A_() + geo._A_()))*p_progress[_O2_] + quad[2]._A_());\
quad[3]._SET_A_((icon._A_() + icon._DA_()*(quad[3]._A_() / geo._DA_()) - (quad[3]._A_() + geo._A_()))*p_progress[_O3_] + quad[3]._A_());\
\
quad[0]._SET_B_(quad[0]._B_() + offset[_O0_]);\
quad[1]._SET_B_(quad[1]._B_() + offset[_O1_]);\
quad[2]._SET_B_(quad[2]._B_() + offset[_O2_]);\
quad[3]._SET_B_(quad[3]._B_() + offset[_O3_])
WindowQuadList newQuads;
newQuads.reserve(data.quads.count());
float quadFactor; // defines how fast a quad is vertically moved: y coordinates near to window top are slowed down
// it is used as quadFactor^3/windowHeight^3
// quadFactor is the y position of the quad but is changed towards becomming the window height
// by that the factor becomes 1 and has no influence any more
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
float p_progress[2] = {0,0}; // the factor which defines how far the x values have to be changed
// factor is the current moved y value diveded by the distance between icon and window
WindowQuad lastQuad(WindowQuadError);
lastQuad[0].setX(-1);
lastQuad[0].setY(-1);
lastQuad[1].setX(-1);
lastQuad[1].setY(-1);
lastQuad[2].setX(-1);
lastQuad[2].setY(-1);
if (position == Bottom) {
float height_cube = float(geo.height()) * float(geo.height()) * float(geo.height());
foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
if (quad[0].y() != lastQuad[0].y() || quad[2].y() != lastQuad[2].y()) {
quadFactor = quad[0].y() + (geo.height() - quad[0].y()) * progress;
offset[0] = (icon.y() + quad[0].y() - geo.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
quadFactor = quad[2].y() + (geo.height() - quad[2].y()) * progress;
offset[1] = (icon.y() + quad[2].y() - geo.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
p_progress[1] = qMin(offset[1] / (icon.y() + icon.height() - geo.y() - float(quad[2].y())), 1.0f);
p_progress[0] = qMin(offset[0] / (icon.y() + icon.height() - geo.y() - float(quad[0].y())), 1.0f);
} else
lastQuad = quad;
SANITIZE_PROGRESS;
// x values are moved towards the center of the icon
SET_QUADS(setX, x, width, setY, y, 0,0,1,1);
newQuads.append(quad);
}
} else if (position == Top) {
float height_cube = float(geo.height()) * float(geo.height()) * float(geo.height());
foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
if (quad[0].y() != lastQuad[0].y() || quad[2].y() != lastQuad[2].y()) {
quadFactor = geo.height() - quad[0].y() + (quad[0].y()) * progress;
offset[0] = (geo.y() - icon.height() + geo.height() + quad[0].y() - icon.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
quadFactor = geo.height() - quad[2].y() + (quad[2].y()) * progress;
offset[1] = (geo.y() - icon.height() + geo.height() + quad[2].y() - icon.y()) * progress * ((quadFactor * quadFactor * quadFactor) / height_cube);
p_progress[0] = qMin(offset[0] / (geo.y() - icon.height() + geo.height() - icon.y() - float(geo.height() - quad[0].y())), 1.0f);
p_progress[1] = qMin(offset[1] / (geo.y() - icon.height() + geo.height() - icon.y() - float(geo.height() - quad[2].y())), 1.0f);
} else
lastQuad = quad;
offset[0] = -offset[0];
offset[1] = -offset[1];
SANITIZE_PROGRESS;
// x values are moved towards the center of the icon
SET_QUADS(setX, x, width, setY, y, 0,0,1,1);
newQuads.append(quad);
}
} else if (position == Left) {
float width_cube = float(geo.width()) * float(geo.width()) * float(geo.width());
foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
if (quad[0].x() != lastQuad[0].x() || quad[1].x() != lastQuad[1].x()) {
quadFactor = geo.width() - quad[0].x() + (quad[0].x()) * progress;
offset[0] = (geo.x() - icon.width() + geo.width() + quad[0].x() - icon.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
quadFactor = geo.width() - quad[1].x() + (quad[1].x()) * progress;
offset[1] = (geo.x() - icon.width() + geo.width() + quad[1].x() - icon.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
p_progress[0] = qMin(offset[0] / (geo.x() - icon.width() + geo.width() - icon.x() - float(geo.width() - quad[0].x())), 1.0f);
p_progress[1] = qMin(offset[1] / (geo.x() - icon.width() + geo.width() - icon.x() - float(geo.width() - quad[1].x())), 1.0f);
} else
lastQuad = quad;
offset[0] = -offset[0];
offset[1] = -offset[1];
SANITIZE_PROGRESS;
// y values are moved towards the center of the icon
SET_QUADS(setY, y, height, setX, x, 0,1,1,0);
newQuads.append(quad);
}
} else if (position == Right) {
float width_cube = float(geo.width()) * float(geo.width()) * float(geo.width());
foreach (WindowQuad quad, data.quads) { // krazy:exclude=foreach
if (quad[0].x() != lastQuad[0].x() || quad[1].x() != lastQuad[1].x()) {
quadFactor = quad[0].x() + (geo.width() - quad[0].x()) * progress;
offset[0] = (icon.x() + quad[0].x() - geo.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
quadFactor = quad[1].x() + (geo.width() - quad[1].x()) * progress;
offset[1] = (icon.x() + quad[1].x() - geo.x()) * progress * ((quadFactor * quadFactor * quadFactor) / width_cube);
p_progress[0] = qMin(offset[0] / (icon.x() + icon.width() - geo.x() - float(quad[0].x())), 1.0f);
p_progress[1] = qMin(offset[1] / (icon.x() + icon.width() - geo.x() - float(quad[1].x())), 1.0f);
} else
lastQuad = quad;
SANITIZE_PROGRESS;
// y values are moved towards the center of the icon
SET_QUADS(setY, y, height, setX, x, 0,1,1,0);
newQuads.append(quad);
}
}
data.quads = newQuads;
}
// Call the next effect.
effects->paintWindow(w, mask, region, data);
}
void MagicLampEffect::postPaintScreen()
{
auto animationIt = m_animations.begin();
while (animationIt != m_animations.end()) {
if ((*animationIt).done()) {
animationIt = m_animations.erase(animationIt);
} else {
++animationIt;
}
}
effects->addRepaintFull();
// Call the next effect.
effects->postPaintScreen();
}
void MagicLampEffect::slotWindowDeleted(EffectWindow* w)
{
m_animations.remove(w);
}
void MagicLampEffect::slotWindowMinimized(EffectWindow* w)
{
if (effects->activeFullScreenEffect())
return;
TimeLine &timeLine = m_animations[w];
if (timeLine.running()) {
timeLine.toggleDirection();
} else {
timeLine.setDirection(TimeLine::Forward);
timeLine.setDuration(m_duration);
timeLine.setEasingCurve(QEasingCurve::Linear);
}
effects->addRepaintFull();
}
void MagicLampEffect::slotWindowUnminimized(EffectWindow* w)
{
if (effects->activeFullScreenEffect())
return;
TimeLine &timeLine = m_animations[w];
if (timeLine.running()) {
timeLine.toggleDirection();
} else {
timeLine.setDirection(TimeLine::Backward);
timeLine.setDuration(m_duration);
timeLine.setEasingCurve(QEasingCurve::Linear);
}
effects->addRepaintFull();
}
bool MagicLampEffect::isActive() const
{
return !m_animations.isEmpty();
}
} // namespace