kwin/effects/cube/cubeslide.cpp
2011-01-31 20:07:03 +01:00

612 lines
23 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>
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 "cubeslide.h"
#include <kwinconfig.h>
#include <kconfiggroup.h>
#include <math.h>
#include <kwinglutils.h>
namespace KWin
{
KWIN_EFFECT(cubeslide, CubeSlideEffect)
KWIN_EFFECT_SUPPORTED(cubeslide, CubeSlideEffect::supported())
CubeSlideEffect::CubeSlideEffect()
: windowMoving(false)
, desktopChangedWhileMoving(false)
, progressRestriction(0.0f)
{
reconfigure(ReconfigureAll);
}
CubeSlideEffect::~CubeSlideEffect()
{
}
bool CubeSlideEffect::supported()
{
return effects->compositingType() == OpenGLCompositing;
}
void CubeSlideEffect::reconfigure(ReconfigureFlags)
{
KConfigGroup conf = effects->effectConfig("CubeSlide");
rotationDuration = animationTime(conf, "RotationDuration", 500);
timeLine.setCurveShape(TimeLine::EaseInOutCurve);
timeLine.setDuration(rotationDuration);
dontSlidePanels = conf.readEntry("DontSlidePanels", true);
dontSlideStickyWindows = conf.readEntry("DontSlideStickyWindows", false);
usePagerLayout = conf.readEntry("UsePagerLayout", true);
useWindowMoving = conf.readEntry("UseWindowMoving", false);
}
void CubeSlideEffect::prePaintScreen(ScreenPrePaintData& data, int time)
{
if (!slideRotations.empty()) {
data.mask |= PAINT_SCREEN_TRANSFORMED | Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS | PAINT_SCREEN_BACKGROUND_FIRST;
timeLine.addTime(time);
if (windowMoving && timeLine.progress() > progressRestriction)
timeLine.setProgress(progressRestriction);
if (dontSlidePanels)
panels.clear();
stickyWindows.clear();
}
effects->prePaintScreen(data, time);
}
void CubeSlideEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
if (!slideRotations.empty()) {
#ifdef KWIN_HAVE_OPENGLES
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
paintSlideCube(mask, region, data);
glCullFace(GL_BACK);
paintSlideCube(mask, region, data);
glDisable(GL_CULL_FACE);
#else
glPushAttrib(GL_CURRENT_BIT | GL_ENABLE_BIT);
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
glPushMatrix();
paintSlideCube(mask, region, data);
glPopMatrix();
glCullFace(GL_BACK);
glPushMatrix();
paintSlideCube(mask, region, data);
glPopMatrix();
glDisable(GL_CULL_FACE);
glPopAttrib();
#endif
if (dontSlidePanels) {
foreach (EffectWindow * w, panels) {
WindowPaintData wData(w);
effects->paintWindow(w, 0, QRegion(w->x(), w->y(), w->width(), w->height()), wData);
}
}
foreach (EffectWindow * w, stickyWindows) {
WindowPaintData wData(w);
effects->paintWindow(w, 0, QRegion(w->x(), w->y(), w->width(), w->height()), wData);
}
} else
effects->paintScreen(mask, region, data);
}
void CubeSlideEffect::paintSlideCube(int mask, QRegion region, ScreenPaintData& data)
{
// slide cube only paints to desktops at a time
// first the horizontal rotations followed by vertical rotations
QRect rect = effects->clientArea(FullArea, effects->activeScreen(), effects->currentDesktop());
float point = rect.width() / 2 * tan(45.0f * M_PI / 180.0f);
cube_painting = true;
painting_desktop = front_desktop;
ScreenPaintData firstFaceData = data;
ScreenPaintData secondFaceData = data;
RotationData firstFaceRot = RotationData();
RotationData secondFaceRot = RotationData();
RotationDirection direction = slideRotations.head();
int secondDesktop;
switch(direction) {
case Left:
firstFaceRot.axis = RotationData::YAxis;
secondFaceRot.axis = RotationData::YAxis;
if (usePagerLayout)
secondDesktop = effects->desktopToLeft(front_desktop, true);
else {
secondDesktop = front_desktop - 1;
if (secondDesktop == 0)
secondDesktop = effects->numberOfDesktops();
}
firstFaceRot.angle = 90.0f * timeLine.value();
secondFaceRot.angle = -90.0f * (1.0f - timeLine.value());
break;
case Right:
firstFaceRot.axis = RotationData::YAxis;
secondFaceRot.axis = RotationData::YAxis;
if (usePagerLayout)
secondDesktop = effects->desktopToRight(front_desktop, true);
else {
secondDesktop = front_desktop + 1;
if (secondDesktop > effects->numberOfDesktops())
secondDesktop = 1;
}
firstFaceRot.angle = -90.0f * timeLine.value();
secondFaceRot.angle = 90.0f * (1.0f - timeLine.value());
break;
case Upwards:
firstFaceRot.axis = RotationData::XAxis;
secondFaceRot.axis = RotationData::XAxis;
secondDesktop = effects->desktopAbove(front_desktop, true);
firstFaceRot.angle = -90.0f * timeLine.value();
secondFaceRot.angle = 90.0f * (1.0f - timeLine.value());
point = rect.height() / 2 * tan(45.0f * M_PI / 180.0f);
break;
case Downwards:
firstFaceRot.axis = RotationData::XAxis;
secondFaceRot.axis = RotationData::XAxis;
secondDesktop = effects->desktopBelow(front_desktop, true);
firstFaceRot.angle = 90.0f * timeLine.value();
secondFaceRot.angle = -90.0f * (1.0f - timeLine.value());
point = rect.height() / 2 * tan(45.0f * M_PI / 180.0f);
break;
default:
// totally impossible
return;
}
// front desktop
firstFaceRot.xRotationPoint = rect.width() / 2;
firstFaceRot.yRotationPoint = rect.height() / 2;
firstFaceRot.zRotationPoint = -point;
firstFaceData.rotation = &firstFaceRot;
other_desktop = secondDesktop;
firstDesktop = true;
effects->paintScreen(mask, region, firstFaceData);
// second desktop
other_desktop = painting_desktop;
painting_desktop = secondDesktop;
firstDesktop = false;
secondFaceRot.xRotationPoint = rect.width() / 2;
secondFaceRot.yRotationPoint = rect.height() / 2;
secondFaceRot.zRotationPoint = -point;
secondFaceData.rotation = &secondFaceRot;
effects->paintScreen(mask, region, secondFaceData);
cube_painting = false;
painting_desktop = effects->currentDesktop();
}
void CubeSlideEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
{
if (!slideRotations.empty() && cube_painting) {
QRect rect = effects->clientArea(FullArea, effects->activeScreen(), painting_desktop);
if (dontSlidePanels && w->isDock()) {
w->setData(WindowForceBlurRole, QVariant(true));
panels.insert(w);
}
if (!w->isManaged()) {
w->setData(WindowForceBlurRole, QVariant(true));
stickyWindows.insert(w);
} else if (dontSlideStickyWindows && !w->isDock() &&
!w->isDesktop() && w->isOnAllDesktops()) {
w->setData(WindowForceBlurRole, QVariant(true));
stickyWindows.insert(w);
}
if (w->isOnDesktop(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());
}
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
} else if (w->isOnDesktop(other_desktop)) {
RotationDirection direction = slideRotations.head();
bool enable = false;
if (w->x() < rect.x() &&
(direction == Left || direction == Right)) {
data.quads = data.quads.splitAtX(-w->x());
enable = true;
}
if (w->x() + w->width() > rect.x() + rect.width() &&
(direction == Left || direction == Right)) {
data.quads = data.quads.splitAtX(rect.width() - w->x());
enable = true;
}
if (w->y() < rect.y() &&
(direction == Upwards || direction == Downwards)) {
data.quads = data.quads.splitAtY(-w->y());
enable = true;
}
if (w->y() + w->height() > rect.y() + rect.height() &&
(direction == Upwards || direction == Downwards)) {
data.quads = data.quads.splitAtY(rect.height() - w->y());
enable = true;
}
if (enable) {
data.setTransformed();
data.setTranslucent();
w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
} else
w->disablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
} else
w->disablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
}
effects->prePaintWindow(w, data, time);
}
void CubeSlideEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
if (!slideRotations.empty() && cube_painting) {
if (dontSlidePanels && w->isDock())
return;
if (stickyWindows.contains(w))
return;
// filter out quads overlapping the edges
QRect rect = effects->clientArea(FullArea, effects->activeScreen(), painting_desktop);
if (w->isOnDesktop(painting_desktop)) {
if (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->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;
}
}
// paint windows overlapping edges from other desktop
if (w->isOnDesktop(other_desktop) && (mask & PAINT_WINDOW_TRANSFORMED)) {
RotationDirection direction = slideRotations.head();
if (w->x() < rect.x() &&
(direction == Left || direction == Right)) {
WindowQuadList new_quads;
data.xTranslate = rect.width();
foreach (const WindowQuad & quad, data.quads) {
if (quad.right() <= -w->x()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
if (w->x() + w->width() > rect.x() + rect.width() &&
(direction == Left || direction == Right)) {
WindowQuadList new_quads;
data.xTranslate = -rect.width();
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() &&
(direction == Upwards || direction == Downwards)) {
WindowQuadList new_quads;
data.yTranslate = rect.height();
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() &&
(direction == Upwards || direction == Downwards)) {
WindowQuadList new_quads;
data.yTranslate = -rect.height();
foreach (const WindowQuad & quad, data.quads) {
if (quad.bottom() > rect.height() - w->y()) {
new_quads.append(quad);
}
}
data.quads = new_quads;
}
if (firstDesktop)
data.opacity *= timeLine.value();
else
data.opacity *= (1.0 - timeLine.value());
}
}
effects->paintWindow(w, mask, region, data);
}
void CubeSlideEffect::postPaintScreen()
{
effects->postPaintScreen();
if (!slideRotations.empty()) {
if (timeLine.value() == 1.0) {
RotationDirection direction = slideRotations.dequeue();
switch(direction) {
case Left:
if (usePagerLayout)
front_desktop = effects->desktopToLeft(front_desktop, true);
else {
front_desktop--;
if (front_desktop == 0)
front_desktop = effects->numberOfDesktops();
}
break;
case Right:
if (usePagerLayout)
front_desktop = effects->desktopToRight(front_desktop, true);
else {
front_desktop++;
if (front_desktop > effects->numberOfDesktops())
front_desktop = 1;
}
break;
case Upwards:
front_desktop = effects->desktopAbove(front_desktop, true);
break;
case Downwards:
front_desktop = effects->desktopBelow(front_desktop, true);
break;
}
timeLine.setProgress(0.0);
if (slideRotations.count() == 1)
timeLine.setCurveShape(TimeLine::EaseOutCurve);
else
timeLine.setCurveShape(TimeLine::LinearCurve);
if (slideRotations.empty()) {
foreach (EffectWindow * w, panels)
w->setData(WindowForceBlurRole, QVariant(false));
foreach (EffectWindow * w, stickyWindows)
w->setData(WindowForceBlurRole, QVariant(false));
stickyWindows.clear();
panels.clear();
effects->setActiveFullScreenEffect(0);
}
}
effects->addRepaintFull();
}
}
void CubeSlideEffect::desktopChanged(int old)
{
if (effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this)
return;
if (old > effects->numberOfDesktops()) {
// number of desktops has been reduced -> no animation
return;
}
if (windowMoving) {
desktopChangedWhileMoving = true;
progressRestriction = 1.0 - progressRestriction;
effects->addRepaintFull();
return;
}
bool activate = true;
if (!slideRotations.empty()) {
// last slide still in progress
activate = false;
RotationDirection direction = slideRotations.dequeue();
slideRotations.clear();
slideRotations.enqueue(direction);
switch(direction) {
case Left:
if (usePagerLayout)
old = effects->desktopToLeft(front_desktop, true);
else {
old = front_desktop - 1;
if (old == 0)
old = effects->numberOfDesktops();
}
break;
case Right:
if (usePagerLayout)
old = effects->desktopToRight(front_desktop, true);
else {
old = front_desktop + 1;
if (old > effects->numberOfDesktops())
old = 1;
}
break;
case Upwards:
old = effects->desktopAbove(front_desktop, true);
break;
case Downwards:
old = effects->desktopBelow(front_desktop, true);
break;
}
}
if (usePagerLayout) {
// calculate distance in respect to pager
QPoint diff = effects->desktopGridCoords(effects->currentDesktop()) - effects->desktopGridCoords(old);
if (qAbs(diff.x()) > effects->desktopGridWidth() / 2) {
int sign = -1 * (diff.x() / qAbs(diff.x()));
diff.setX(sign *(effects->desktopGridWidth() - qAbs(diff.x())));
}
if (diff.x() > 0) {
for (int i = 0; i < diff.x(); i++) {
slideRotations.enqueue(Right);
}
} else if (diff.x() < 0) {
diff.setX(-diff.x());
for (int i = 0; i < diff.x(); i++) {
slideRotations.enqueue(Left);
}
}
if (qAbs(diff.y()) > effects->desktopGridHeight() / 2) {
int sign = -1 * (diff.y() / qAbs(diff.y()));
diff.setY(sign *(effects->desktopGridHeight() - qAbs(diff.y())));
}
if (diff.y() > 0) {
for (int i = 0; i < diff.y(); i++) {
slideRotations.enqueue(Downwards);
}
}
if (diff.y() < 0) {
diff.setY(-diff.y());
for (int i = 0; i < diff.y(); i++) {
slideRotations.enqueue(Upwards);
}
}
} else {
// ignore pager layout
int left = old - effects->currentDesktop();
if (left < 0)
left = effects->numberOfDesktops() + left;
int right = effects->currentDesktop() - old;
if (right < 0)
right = effects->numberOfDesktops() + right;
if (left < right) {
for (int i = 0; i < left; i++) {
slideRotations.enqueue(Left);
}
} else {
for (int i = 0; i < right; i++) {
slideRotations.enqueue(Right);
}
}
}
timeLine.setDuration((float)rotationDuration / (float)slideRotations.count());
if (activate) {
if (slideRotations.count() == 1)
timeLine.setCurveShape(TimeLine::EaseInOutCurve);
else
timeLine.setCurveShape(TimeLine::EaseInCurve);
effects->setActiveFullScreenEffect(this);
timeLine.setProgress(0.0);
front_desktop = old;
effects->addRepaintFull();
}
}
void CubeSlideEffect::windowUserMovedResized(EffectWindow* c, bool first, bool last)
{
if (!useWindowMoving)
return;
if ((first && last) || c->isUserResize())
return;
if (last) {
if (!desktopChangedWhileMoving) {
if (slideRotations.isEmpty())
return;
const RotationDirection direction = slideRotations.dequeue();
switch(direction) {
case Left:
slideRotations.enqueue(Right);
break;
case Right:
slideRotations.enqueue(Left);
break;
case Upwards:
slideRotations.enqueue(Downwards);
break;
case Downwards:
slideRotations.enqueue(Upwards);
break;
default:
break; // impossible
}
timeLine.setProgress(1.0 - timeLine.progress());
}
desktopChangedWhileMoving = false;
windowMoving = false;
effects->addRepaintFull();
return;
}
const QPoint cursor = effects->cursorPos();
const int horizontal = displayWidth() * 0.1;
const int vertical = displayHeight() * 0.1;
const QRect leftRect(0, displayHeight() * 0.1, horizontal, displayHeight() * 0.8);
const QRect rightRect(displayWidth() - horizontal, displayHeight() * 0.1, horizontal, displayHeight() * 0.8);
const QRect topRect(horizontal, 0, displayWidth() * 0.8, vertical);
const QRect bottomRect(horizontal, displayHeight() - vertical, displayWidth() - horizontal * 2, vertical);
if (leftRect.contains(cursor)) {
if (effects->desktopToLeft(effects->currentDesktop()) != effects->currentDesktop())
windowMovingChanged(0.3 *(float)(horizontal - cursor.x()) / (float)horizontal, Left);
} else if (rightRect.contains(cursor)) {
if (effects->desktopToRight(effects->currentDesktop()) != effects->currentDesktop())
windowMovingChanged(0.3 *(float)(cursor.x() - displayWidth() + horizontal) / (float)horizontal, Right);
} else if (topRect.contains(cursor)) {
if (effects->desktopAbove(effects->currentDesktop()) != effects->currentDesktop())
windowMovingChanged(0.3 *(float)(vertical - cursor.y()) / (float)vertical, Upwards);
} else if (bottomRect.contains(cursor)) {
if (effects->desktopBelow(effects->currentDesktop()) != effects->currentDesktop())
windowMovingChanged(0.3 *(float)(cursor.y() - displayHeight() + vertical) / (float)vertical, Downwards);
} else {
// not in one of the areas
windowMoving = false;
desktopChangedWhileMoving = false;
timeLine.setProgress(0.0);
if (!slideRotations.isEmpty())
slideRotations.clear();
effects->setActiveFullScreenEffect(0);
effects->addRepaintFull();
}
}
void CubeSlideEffect::windowMovingChanged(float progress, RotationDirection direction)
{
if (desktopChangedWhileMoving)
progressRestriction = 1.0 - progress;
else
progressRestriction = progress;
front_desktop = effects->currentDesktop();
if (slideRotations.isEmpty()) {
slideRotations.enqueue(direction);
timeLine.setCurveShape(TimeLine::EaseInOutCurve);
windowMoving = true;
effects->setActiveFullScreenEffect(this);
}
effects->addRepaintFull();
}
} // namespace