145f0c096f
Most effects had a "collection" for one action. We don't need the action collection, all it was used for is setting the object name. With the removal of KActionCollection the effects do not need to link XmlGui any more, though the dependency is still pulled in through plasma.
538 lines
20 KiB
C++
538 lines
20 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) 2006 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2010 Sebastian Sauer <sebsauer@kdab.com>
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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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#include "zoom.h"
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// KConfigSkeleton
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#include "zoomconfig.h"
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#include <QAction>
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#include <QApplication>
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#include <QStyle>
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#include <QtGui/QVector2D>
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#include <QtDBus/QDBusConnection>
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#include <kstandardaction.h>
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#include <KDE/KConfigGroup>
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#include <KDE/KGlobalAccel>
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#include <KDE/KLocalizedString>
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#include <kwinglutils.h>
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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#include <kwinxrenderutils.h>
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#include <xcb/render.h>
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#endif
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#include <xcb/xfixes.h>
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#include <X11/Xcursor/Xcursor.h>
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namespace KWin
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{
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KWIN_EFFECT(zoom, ZoomEffect)
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ZoomEffect::ZoomEffect()
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: Effect()
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, zoom(1)
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, target_zoom(1)
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, polling(false)
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, zoomFactor(1.25)
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, mouseTracking(MouseTrackingProportional)
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, enableFocusTracking(false)
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, followFocus(true)
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, mousePointer(MousePointerScale)
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, focusDelay(350) // in milliseconds
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, imageWidth(0)
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, imageHeight(0)
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, isMouseHidden(false)
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, xMove(0)
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, yMove(0)
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, moveFactor(20.0)
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{
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QAction* a = 0;
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a = KStandardAction::zoomIn(this, SLOT(zoomIn()), this);
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Equal);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Equal);
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a = KStandardAction::zoomOut(this, SLOT(zoomOut()), this);
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Minus);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Minus);
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a = KStandardAction::actualSize(this, SLOT(actualSize()), this);
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_0);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_0);
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveZoomLeft"));
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a->setText(i18n("Move Zoomed Area to Left"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Left);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Left);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveZoomLeft()));
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveZoomRight"));
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a->setText(i18n("Move Zoomed Area to Right"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Right);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Right);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveZoomRight()));
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveZoomUp"));
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a->setText(i18n("Move Zoomed Area Upwards"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Up);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Up);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveZoomUp()));
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveZoomDown"));
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a->setText(i18n("Move Zoomed Area Downwards"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Down);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_Down);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveZoomDown()));
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// TODO: these two actions don't belong into the effect. They need to be moved into KWin core
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveMouseToFocus"));
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a->setText(i18n("Move Mouse to Focus"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_F5);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_F5);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveMouseToFocus()));
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a = new QAction(this);
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a->setObjectName(QStringLiteral("MoveMouseToCenter"));
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a->setText(i18n("Move Mouse to Center"));
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KGlobalAccel::self()->setDefaultShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_F6);
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KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << Qt::META + Qt::Key_F6);
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connect(a, SIGNAL(triggered(bool)), this, SLOT(moveMouseToCenter()));
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timeline.setDuration(350);
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timeline.setFrameRange(0, 100);
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connect(&timeline, SIGNAL(frameChanged(int)), this, SLOT(timelineFrameChanged(int)));
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connect(effects, SIGNAL(mouseChanged(QPoint,QPoint,Qt::MouseButtons,Qt::MouseButtons,Qt::KeyboardModifiers,Qt::KeyboardModifiers)),
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this, SLOT(slotMouseChanged(QPoint,QPoint,Qt::MouseButtons,Qt::MouseButtons,Qt::KeyboardModifiers,Qt::KeyboardModifiers)));
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source_zoom = -1; // used to trigger initialZoom reading
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reconfigure(ReconfigureAll);
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}
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ZoomEffect::~ZoomEffect()
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{
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// switch off and free resources
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showCursor();
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// Save the zoom value.
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KConfigGroup conf = EffectsHandler::effectConfig(QStringLiteral("Zoom"));
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conf.writeEntry("InitialZoom", target_zoom);
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conf.sync();
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}
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void ZoomEffect::showCursor()
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{
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if (isMouseHidden) {
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// show the previously hidden mouse-pointer again and free the loaded texture/picture.
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xcb_xfixes_show_cursor(connection(), rootWindow());
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texture.reset();
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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xrenderPicture.reset();
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#endif
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isMouseHidden = false;
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}
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}
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void ZoomEffect::hideCursor()
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{
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if (mouseTracking == MouseTrackingProportional && mousePointer == MousePointerKeep)
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return; // don't replace the actual cursor by a static image for no reason.
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if (!isMouseHidden) {
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// try to load the cursor-theme into a OpenGL texture and if successful then hide the mouse-pointer
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recreateTexture();
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bool shouldHide = false;
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if (effects->isOpenGLCompositing()) {
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shouldHide = !texture.isNull();
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} else if (effects->compositingType() == XRenderCompositing) {
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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shouldHide = !xrenderPicture.isNull();
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#endif
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}
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if (shouldHide) {
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xcb_xfixes_hide_cursor(connection(), rootWindow());
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isMouseHidden = true;
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}
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}
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}
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void ZoomEffect::recreateTexture()
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{
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effects->makeOpenGLContextCurrent();
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// read details about the mouse-cursor theme define per default
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KConfigGroup mousecfg(KSharedConfig::openConfig(QStringLiteral("kcminputrc")), "Mouse");
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QString theme = mousecfg.readEntry("cursorTheme", QString());
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QString size = mousecfg.readEntry("cursorSize", QString());
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// fetch a reasonable size for the cursor-theme image
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bool ok;
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int iconSize = size.toInt(&ok);
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if (!ok)
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iconSize = QApplication::style()->pixelMetric(QStyle::PM_LargeIconSize);
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// load the cursor-theme image from the Xcursor-library
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XcursorImage *ximg = XcursorLibraryLoadImage("left_ptr", theme.toLocal8Bit().constData(), iconSize);
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if (!ximg) // default is better then nothing, so keep it as backup
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ximg = XcursorLibraryLoadImage("left_ptr", "default", iconSize);
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if (ximg) {
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// turn the XcursorImage into a QImage that will be used to create the GLTexture/XRenderPicture.
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imageWidth = ximg->width;
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imageHeight = ximg->height;
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QImage img((uchar*)ximg->pixels, imageWidth, imageHeight, QImage::Format_ARGB32_Premultiplied);
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if (effects->isOpenGLCompositing())
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texture.reset(new GLTexture(img));
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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if (effects->compositingType() == XRenderCompositing)
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xrenderPicture.reset(new XRenderPicture(img));
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#endif
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XcursorImageDestroy(ximg);
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}
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else {
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qCDebug(KWINEFFECTS) << "Loading cursor image (" << theme << ") FAILED -> falling back to proportional mouse tracking!";
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mouseTracking = MouseTrackingProportional;
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}
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}
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void ZoomEffect::reconfigure(ReconfigureFlags)
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{
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ZoomConfig::self()->readConfig();
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// On zoom-in and zoom-out change the zoom by the defined zoom-factor.
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zoomFactor = qMax(0.1, ZoomConfig::zoomFactor());
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// Visibility of the mouse-pointer.
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mousePointer = MousePointerType(ZoomConfig::mousePointer());
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// Track moving of the mouse.
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mouseTracking = MouseTrackingType(ZoomConfig::mouseTracking());
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// Enable tracking of the focused location.
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bool _enableFocusTracking = ZoomConfig::enableFocusTracking();
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if (enableFocusTracking != _enableFocusTracking) {
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enableFocusTracking = _enableFocusTracking;
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if (QDBusConnection::sessionBus().isConnected()) {
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if (enableFocusTracking)
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QDBusConnection::sessionBus().connect(QStringLiteral("org.kde.kaccessibleapp"),
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QStringLiteral("/Adaptor"),
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QStringLiteral("org.kde.kaccessibleapp.Adaptor"),
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QStringLiteral("focusChanged"),
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this, SLOT(focusChanged(int,int,int,int,int,int)));
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else
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QDBusConnection::sessionBus().disconnect(QStringLiteral("org.kde.kaccessibleapp"),
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QStringLiteral("/Adaptor"),
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QStringLiteral("org.kde.kaccessibleapp.Adaptor"),
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QStringLiteral("focusChanged"),
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this, SLOT(focusChanged(int,int,int,int,int,int)));
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}
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}
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// When the focus changes, move the zoom area to the focused location.
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followFocus = ZoomConfig::enableFollowFocus();
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// The time in milliseconds to wait before a focus-event takes away a mouse-move.
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focusDelay = qMax(uint(0), ZoomConfig::focusDelay());
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// The factor the zoom-area will be moved on touching an edge on push-mode or using the navigation KAction's.
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moveFactor = qMax(0.1, ZoomConfig::moveFactor());
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if (source_zoom < 0) {
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// Load the saved zoom value.
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source_zoom = 1.0;
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target_zoom = ZoomConfig::initialZoom();
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if (target_zoom > 1.0)
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zoomIn(target_zoom);
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} else {
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source_zoom = 1.0;
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}
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}
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void ZoomEffect::prePaintScreen(ScreenPrePaintData& data, int time)
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{
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bool altered = false;
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if (zoom != target_zoom) {
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altered = true;
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const float zoomDist = qAbs(target_zoom - source_zoom);
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if (target_zoom > zoom)
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zoom = qMin(zoom + ((zoomDist * time) / animationTime(150*zoomFactor)), target_zoom);
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else
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zoom = qMax(zoom - ((zoomDist * time) / animationTime(150*zoomFactor)), target_zoom);
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}
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if (zoom == 1.0) {
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showCursor();
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// reset the generic shader to avoid artifacts in plenty other effects
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if (altered && effects->isOpenGLCompositing())
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ShaderBinder binder(ShaderManager::GenericShader, true);
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} else {
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hideCursor();
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data.mask |= PAINT_SCREEN_TRANSFORMED;
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}
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effects->prePaintScreen(data, time);
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}
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void ZoomEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
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{
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if (zoom != 1.0) {
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data *= QVector2D(zoom, zoom);
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// mouse-tracking allows navigation of the zoom-area using the mouse.
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switch(mouseTracking) {
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case MouseTrackingProportional:
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data.setXTranslation(- int(cursorPoint.x() * (zoom - 1.0)));
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data.setYTranslation(- int(cursorPoint.y() * (zoom - 1.0)));
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prevPoint = cursorPoint;
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break;
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case MouseTrackingCentred:
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prevPoint = cursorPoint;
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// fall through
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case MouseTrackingDisabled:
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data.setXTranslation(qMin(0, qMax(int(displayWidth() - displayWidth() * zoom), int(displayWidth() / 2 - prevPoint.x() * zoom))));
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data.setYTranslation(qMin(0, qMax(int(displayHeight() - displayHeight() * zoom), int(displayHeight() / 2 - prevPoint.y() * zoom))));
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break;
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case MouseTrackingPush: {
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// touching an edge of the screen moves the zoom-area in that direction.
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int x = cursorPoint.x() * zoom - prevPoint.x() * (zoom - 1.0);
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int y = cursorPoint.y() * zoom - prevPoint.y() * (zoom - 1.0);
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int threshold = 4;
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xMove = yMove = 0;
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if (x < threshold)
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xMove = (x - threshold) / zoom;
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else if (x + threshold > displayWidth())
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xMove = (x + threshold - displayWidth()) / zoom;
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if (y < threshold)
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yMove = (y - threshold) / zoom;
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else if (y + threshold > displayHeight())
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yMove = (y + threshold - displayHeight()) / zoom;
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if (xMove)
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prevPoint.setX(qMax(0, qMin(displayWidth(), prevPoint.x() + xMove)));
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if (yMove)
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prevPoint.setY(qMax(0, qMin(displayHeight(), prevPoint.y() + yMove)));
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data.setXTranslation(- int(prevPoint.x() * (zoom - 1.0)));
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data.setYTranslation(- int(prevPoint.y() * (zoom - 1.0)));
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break;
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}
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}
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// use the focusPoint if focus tracking is enabled
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if (enableFocusTracking && followFocus) {
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bool acceptFocus = true;
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if (mouseTracking != MouseTrackingDisabled && focusDelay > 0) {
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// Wait some time for the mouse before doing the switch. This serves as threshold
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// to prevent the focus from jumping around to much while working with the mouse.
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const int msecs = lastMouseEvent.msecsTo(lastFocusEvent);
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acceptFocus = msecs > focusDelay;
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}
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if (acceptFocus) {
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data.setXTranslation(- int(focusPoint.x() * (zoom - 1.0)));
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data.setYTranslation(- int(focusPoint.y() * (zoom - 1.0)));
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prevPoint = focusPoint;
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}
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}
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}
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effects->paintScreen(mask, region, data);
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if (zoom != 1.0 && mousePointer != MousePointerHide) {
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// Draw the mouse-texture at the position matching to zoomed-in image of the desktop. Hiding the
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// previous mouse-cursor and drawing our own fake mouse-cursor is needed to be able to scale the
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// mouse-cursor up and to re-position those mouse-cursor to match to the chosen zoom-level.
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int w = imageWidth;
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int h = imageHeight;
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if (mousePointer == MousePointerScale) {
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w *= zoom;
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h *= zoom;
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}
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const QPoint p = effects->cursorPos();
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QRect rect(p.x() * zoom + data.xTranslation(), p.y() * zoom + data.yTranslation(), w, h);
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if (texture) {
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texture->bind();
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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texture->render(region, rect);
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texture->unbind();
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glDisable(GL_BLEND);
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}
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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if (xrenderPicture) {
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#define DOUBLE_TO_FIXED(d) ((xcb_render_fixed_t) ((d) * 65536))
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static xcb_render_transform_t xrenderIdentity = {
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DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
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DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0),
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DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1)
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};
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if (mousePointer == MousePointerScale) {
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xcb_render_set_picture_filter(connection(), *xrenderPicture, 4, const_cast<char*>("good"), 0, NULL);
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const xcb_render_transform_t xform = {
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DOUBLE_TO_FIXED(1.0 / zoom), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
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DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1.0 / zoom), DOUBLE_TO_FIXED(0),
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DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1)
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};
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xcb_render_set_picture_transform(connection(), *xrenderPicture, xform);
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}
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xcb_render_composite(connection(), XCB_RENDER_PICT_OP_OVER, *xrenderPicture, XCB_RENDER_PICTURE_NONE,
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effects->xrenderBufferPicture(), 0, 0, 0, 0, rect.x(), rect.y(), rect.width(), rect.height());
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if (mousePointer == MousePointerScale)
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xcb_render_set_picture_transform(connection(), *xrenderPicture, xrenderIdentity);
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#undef DOUBLE_TO_FIXED
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}
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#endif
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}
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}
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void ZoomEffect::postPaintScreen()
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{
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if (zoom != target_zoom)
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effects->addRepaintFull();
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effects->postPaintScreen();
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}
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void ZoomEffect::zoomIn(double to)
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{
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source_zoom = zoom;
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if (to < 0.0)
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target_zoom *= zoomFactor;
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else
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target_zoom = to;
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if (!polling) {
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polling = true;
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effects->startMousePolling();
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}
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cursorPoint = effects->cursorPos();
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if (mouseTracking == MouseTrackingDisabled)
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prevPoint = cursorPoint;
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effects->addRepaintFull();
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}
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void ZoomEffect::zoomOut()
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{
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source_zoom = zoom;
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target_zoom /= zoomFactor;
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if (target_zoom < 1) {
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target_zoom = 1;
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if (polling) {
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polling = false;
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effects->stopMousePolling();
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}
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}
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if (mouseTracking == MouseTrackingDisabled)
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prevPoint = effects->cursorPos();
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effects->addRepaintFull();
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}
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void ZoomEffect::actualSize()
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{
|
|
source_zoom = zoom;
|
|
target_zoom = 1;
|
|
if (polling) {
|
|
polling = false;
|
|
effects->stopMousePolling();
|
|
}
|
|
effects->addRepaintFull();
|
|
}
|
|
|
|
void ZoomEffect::timelineFrameChanged(int /* frame */)
|
|
{
|
|
prevPoint.setX(qMax(0, qMin(displayWidth(), prevPoint.x() + xMove)));
|
|
prevPoint.setY(qMax(0, qMin(displayHeight(), prevPoint.y() + yMove)));
|
|
cursorPoint = prevPoint;
|
|
effects->addRepaintFull();
|
|
}
|
|
|
|
void ZoomEffect::moveZoom(int x, int y)
|
|
{
|
|
if (timeline.state() == QTimeLine::Running)
|
|
timeline.stop();
|
|
|
|
if (x < 0)
|
|
xMove = - qMax(1.0, displayWidth() / zoom / moveFactor);
|
|
else if (x > 0)
|
|
xMove = qMax(1.0, displayWidth() / zoom / moveFactor);
|
|
else
|
|
xMove = 0;
|
|
|
|
if (y < 0)
|
|
yMove = - qMax(1.0, displayHeight() / zoom / moveFactor);
|
|
else if (y > 0)
|
|
yMove = qMax(1.0, displayHeight() / zoom / moveFactor);
|
|
else
|
|
yMove = 0;
|
|
|
|
timeline.start();
|
|
}
|
|
|
|
void ZoomEffect::moveZoomLeft()
|
|
{
|
|
moveZoom(-1, 0);
|
|
}
|
|
|
|
void ZoomEffect::moveZoomRight()
|
|
{
|
|
moveZoom(1, 0);
|
|
}
|
|
|
|
void ZoomEffect::moveZoomUp()
|
|
{
|
|
moveZoom(0, -1);
|
|
}
|
|
|
|
void ZoomEffect::moveZoomDown()
|
|
{
|
|
moveZoom(0, 1);
|
|
}
|
|
|
|
void ZoomEffect::moveMouseToFocus()
|
|
{
|
|
QCursor::setPos(focusPoint.x(), focusPoint.y());
|
|
}
|
|
|
|
void ZoomEffect::moveMouseToCenter()
|
|
{
|
|
QRect r(0, 0, displayWidth(), displayHeight());
|
|
QCursor::setPos(r.x() + r.width() / 2, r.y() + r.height() / 2);
|
|
}
|
|
|
|
void ZoomEffect::slotMouseChanged(const QPoint& pos, const QPoint& old, Qt::MouseButtons,
|
|
Qt::MouseButtons, Qt::KeyboardModifiers, Qt::KeyboardModifiers)
|
|
{
|
|
if (zoom == 1.0)
|
|
return;
|
|
cursorPoint = pos;
|
|
if (pos != old) {
|
|
lastMouseEvent = QTime::currentTime();
|
|
effects->addRepaintFull();
|
|
}
|
|
}
|
|
|
|
void ZoomEffect::focusChanged(int px, int py, int rx, int ry, int rwidth, int rheight)
|
|
{
|
|
if (zoom == 1.0)
|
|
return;
|
|
focusPoint = (px >= 0 && py >= 0) ? QPoint(px, py) : QPoint(rx + qMax(0, (qMin(displayWidth(), rwidth) / 2) - 60), ry + qMax(0, (qMin(displayHeight(), rheight) / 2) - 60));
|
|
if (enableFocusTracking) {
|
|
lastFocusEvent = QTime::currentTime();
|
|
effects->addRepaintFull();
|
|
}
|
|
}
|
|
|
|
bool ZoomEffect::isActive() const
|
|
{
|
|
return zoom != 1.0 || zoom != target_zoom;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
#include "zoom.moc"
|