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kwin/effects/trackmouse/trackmouse.cpp
Martin Gräßlin 77fff7af6a [kwin] Port away from deprected KCoreConfigSkeleton::readConfig 
Most is just switched to the ::read(). That should be enough for all the
Effects which have a KSharedConfig::Ptr underneath. If not we just need
to find a good place to put the reload.
2014-03-25 16:29:03 +01:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
Copyright (C) 2010 Jorge Mata <matamax123@gmail.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 "trackmouse.h"
// KConfigSkeleton
#include "trackmouseconfig.h"
#include <QAction>
#include <QPainter>
#include <QTime>
#include <QMatrix4x4>
#include <kwinconfig.h>
#include <kwinglutils.h>
#include <kwinxrenderutils.h>
#include <KGlobalAccel>
#include <KLocalizedString>
#include <math.h>
namespace KWin
{
TrackMouseEffect::TrackMouseEffect()
: m_active(false)
, m_angle(0)
{
m_texture[0] = m_texture[1] = 0;
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
m_picture[0] = m_picture[1] = 0;
if ( effects->compositingType() == XRenderCompositing)
m_angleBase = 1.57079632679489661923; // Pi/2
#endif
if ( effects->isOpenGLCompositing() || effects->compositingType() == QPainterCompositing)
m_angleBase = 90.0;
m_mousePolling = false;
m_action = new QAction(this);
m_action->setObjectName(QStringLiteral("TrackMouse"));
m_action->setText(i18n("Track mouse"));
KGlobalAccel::self()->setDefaultShortcut(m_action, QList<QKeySequence>());
KGlobalAccel::self()->setShortcut(m_action, QList<QKeySequence>());
effects->registerGlobalShortcut(QKeySequence(), m_action);
connect(m_action, SIGNAL(triggered(bool)), this, SLOT(toggle()));
connect(effects, SIGNAL(mouseChanged(QPoint,QPoint,Qt::MouseButtons,Qt::MouseButtons,Qt::KeyboardModifiers,Qt::KeyboardModifiers)),
SLOT(slotMouseChanged(QPoint,QPoint,Qt::MouseButtons,Qt::MouseButtons,Qt::KeyboardModifiers,Qt::KeyboardModifiers)));
reconfigure(ReconfigureAll);
}
TrackMouseEffect::~TrackMouseEffect()
{
if (m_mousePolling)
effects->stopMousePolling();
for (int i = 0; i < 2; ++i) {
delete m_texture[i]; m_texture[i] = 0;
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
delete m_picture[i]; m_picture[i] = 0;
#endif
}
}
void TrackMouseEffect::reconfigure(ReconfigureFlags)
{
m_modifiers = 0;
TrackMouseConfig::self()->read();
if (TrackMouseConfig::shift())
m_modifiers |= Qt::ShiftModifier;
if (TrackMouseConfig::alt())
m_modifiers |= Qt::AltModifier;
if (TrackMouseConfig::control())
m_modifiers |= Qt::ControlModifier;
if (TrackMouseConfig::meta())
m_modifiers |= Qt::MetaModifier;
if (m_modifiers) {
if (!m_mousePolling)
effects->startMousePolling();
m_mousePolling = true;
} else if (m_mousePolling) {
effects->stopMousePolling();
m_mousePolling = false;
}
}
void TrackMouseEffect::prePaintScreen(ScreenPrePaintData& data, int time)
{
if (m_active) {
QTime t = QTime::currentTime();
m_angle = ((t.second() % 4) * m_angleBase) + (t.msec() / 1000.0 * m_angleBase);
m_lastRect[0].moveCenter(cursorPos());
m_lastRect[1].moveCenter(cursorPos());
data.paint |= m_lastRect[0].adjusted(-1,-1,1,1);
}
effects->prePaintScreen(data, time);
}
void TrackMouseEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data); // paint normal screen
if (!m_active)
return;
if ( effects->isOpenGLCompositing() && m_texture[0] && m_texture[1]) {
ShaderBinder binder(ShaderManager::GenericShader);
GLShader *shader(binder.shader());
if (!shader) {
return;
}
QMatrix4x4 modelview;
modelview = shader->getUniformMatrix4x4("modelview");
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
QMatrix4x4 matrix(modelview);
const QPointF p = m_lastRect[0].topLeft() + QPoint(m_lastRect[0].width()/2.0, m_lastRect[0].height()/2.0);
for (int i = 0; i < 2; ++i) {
matrix.translate(p.x(), p.y(), 0.0);
matrix.rotate(i ? -2*m_angle : m_angle, 0, 0, 1.0);
matrix.translate(-p.x(), -p.y(), 0.0);
shader->setUniform(GLShader::ModelViewMatrix, matrix);
shader->setUniform(GLShader::Saturation, 1.0);
shader->setUniform(GLShader::ModulationConstant, QVector4D(1.0, 1.0, 1.0, 1.0));
m_texture[i]->bind();
m_texture[i]->render(region, m_lastRect[i]);
m_texture[i]->unbind();
}
glDisable(GL_BLEND);
shader->setUniform(GLShader::ModelViewMatrix, modelview);
}
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
if ( effects->compositingType() == XRenderCompositing && m_picture[0] && m_picture[1]) {
float sine = sin(m_angle);
const float cosine = cos(m_angle);
for (int i = 0; i < 2; ++i) {
if (i) sine = -sine;
const float dx = m_size[i].width()/2.0;
const float dy = m_size[i].height()/2.0;
const xcb_render_picture_t picture = *m_picture[i];
#define DOUBLE_TO_FIXED(d) ((xcb_render_fixed_t) ((d) * 65536))
xcb_render_transform_t xform = {
DOUBLE_TO_FIXED( cosine ), DOUBLE_TO_FIXED( -sine ), DOUBLE_TO_FIXED( dx - cosine*dx + sine*dy ),
DOUBLE_TO_FIXED( sine ), DOUBLE_TO_FIXED( cosine ), DOUBLE_TO_FIXED( dy - sine*dx - cosine*dy ),
DOUBLE_TO_FIXED( 0.0 ), DOUBLE_TO_FIXED( 0.0 ), DOUBLE_TO_FIXED( 1.0 )
};
#undef DOUBLE_TO_FIXED
xcb_render_set_picture_transform(connection(), picture, xform);
xcb_render_set_picture_filter(connection(), picture, 8, "bilinear", 0, NULL);
const QRect &rect = m_lastRect[i];
xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, picture, XCB_RENDER_PICTURE_NONE,
effects->xrenderBufferPicture(), 0, 0, 0, 0,
rect.x(), rect.y(), rect.width(), rect.height());
}
}
#endif
if (effects->compositingType() == QPainterCompositing && !m_image[0].isNull() && !m_image[1].isNull()) {
QPainter *painter = effects->scenePainter();
const QPointF p = m_lastRect[0].topLeft() + QPoint(m_lastRect[0].width()/2.0, m_lastRect[0].height()/2.0);
for (int i = 0; i < 2; ++i) {
painter->save();
painter->translate(p.x(), p.y());
painter->rotate(i ? -2*m_angle : m_angle);
painter->translate(-p.x(), -p.y());
painter->drawImage(m_lastRect[i], m_image[i]);
painter->restore();
}
}
}
void TrackMouseEffect::postPaintScreen()
{
if (m_active) {
effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1));
}
effects->postPaintScreen();
}
bool TrackMouseEffect::init()
{
effects->makeOpenGLContextCurrent();
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
if (!(m_texture[0] || m_picture[0] || m_image[0].isNull())) {
loadTexture();
if (!(m_texture[0] || m_picture[0] || m_image[0].isNull()))
return false;
}
#else
if (!m_texture[0] || m_image[0].isNull()) {
loadTexture();
if (!m_texture[0] || m_image[0].isNull())
return false;
}
#endif
m_lastRect[0].moveCenter(cursorPos());
m_lastRect[1].moveCenter(cursorPos());
m_active = true;
m_angle = 0;
return true;
}
void TrackMouseEffect::toggle()
{
if (m_mousePolling)
return;
if (m_active) {
m_active = false;
} else if (!init()) {
return;
}
effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1));
}
void TrackMouseEffect::slotMouseChanged(const QPoint&, const QPoint&,
Qt::MouseButtons, Qt::MouseButtons,
Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers)
{
if (!m_mousePolling) // we didn't ask for it but maybe someone else did...
return;
if (m_modifiers && modifiers == m_modifiers) {
if (!m_active && !init()) {
return;
}
effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1));
} else if (m_active) {
m_active = false;
effects->addRepaint(m_lastRect[0].adjusted(-1,-1,1,1));
}
}
void TrackMouseEffect::loadTexture()
{
QString f[2] = {QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_outer.png")),
QStandardPaths::locate(QStandardPaths::DataLocation, QStringLiteral("tm_inner.png"))};
if (f[0].isEmpty() || f[1].isEmpty())
return;
for (int i = 0; i < 2; ++i) {
if ( effects->isOpenGLCompositing()) {
QImage img(f[i]);
m_texture[i] = new GLTexture(img);
m_lastRect[i].setSize(img.size());
}
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
if ( effects->compositingType() == XRenderCompositing) {
QImage pixmap(f[i]);
m_picture[i] = new XRenderPicture(pixmap);
m_size[i] = pixmap.size();
m_lastRect[i].setSize(pixmap.size());
}
#endif
if (effects->compositingType() == QPainterCompositing) {
m_image[i] = QImage(f[i]);
m_lastRect[i].setSize(m_image[i].size());
}
}
}
bool TrackMouseEffect::isActive() const
{
return m_active;
}
} // namespace
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