581 lines
20 KiB
C++
581 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) 2009 Martin Gräßlin <kde@martin-graesslin.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 "desktopchangeosd.h"
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#include <QTextStream>
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#include "workspace.h"
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#include <X11/extensions/shape.h>
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#include <QDebug>
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#include <QEasingCurve>
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#include <QPropertyAnimation>
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#include <QHash>
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#include <QGraphicsScene>
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#include <QRect>
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#include <KDE/Plasma/Theme>
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#include <KDE/Plasma/PaintUtils>
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#include <kiconloader.h>
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namespace KWin
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{
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DesktopChangeOSD::DesktopChangeOSD(Workspace* ws)
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: QGraphicsView()
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, m_wspace(ws)
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, m_scene(0)
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, m_active(false)
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, m_show(false)
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, m_delayTime(0)
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, m_textOnly(false)
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{
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setWindowFlags(Qt::X11BypassWindowManagerHint);
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setFrameStyle(QFrame::NoFrame);
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viewport()->setAutoFillBackground(false);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setAttribute(Qt::WA_TranslucentBackground);
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m_frame.setImagePath("dialogs/background");
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m_frame.setCacheAllRenderedFrames(true);
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m_frame.setEnabledBorders(Plasma::FrameSvg::AllBorders);
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m_item_frame.setImagePath("widgets/pager");
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m_item_frame.setCacheAllRenderedFrames(true);
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m_item_frame.setEnabledBorders(Plasma::FrameSvg::AllBorders);
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m_delayedHideTimer.setSingleShot(true);
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connect(&m_delayedHideTimer, SIGNAL(timeout()), this, SLOT(hide()));
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m_scene = new QGraphicsScene(0);
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setScene(m_scene);
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reconfigure();
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m_scene->addItem(new DesktopChangeText(m_wspace));
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}
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DesktopChangeOSD::~DesktopChangeOSD()
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{
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delete m_scene;
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}
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void DesktopChangeOSD::reconfigure()
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{
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KSharedConfigPtr c(KGlobal::config());
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const KConfigGroup cg = c->group("PopupInfo");
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m_show = cg.readEntry("ShowPopup", false);
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m_delayTime = cg.readEntry("PopupHideDelay", 1000);
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m_textOnly = cg.readEntry("TextOnly", false);
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numberDesktopsChanged();
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}
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void DesktopChangeOSD::desktopChanged(int old)
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{
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if (!m_show)
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return;
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// we have to stop in case the old desktop does not exist anymore
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if (old > m_wspace->numberOfDesktops())
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return;
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// calculate where icons have to be shown
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QPoint diff = m_wspace->desktopGridCoords(m_wspace->currentDesktop()) - m_wspace->desktopGridCoords(old);
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QHash< int, DesktopChangeItem::Arrow > hash = QHash< int, DesktopChangeItem::Arrow>();
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int desktop = old;
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int target = m_wspace->currentDesktop();
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int x = diff.x();
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int y = diff.y();
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if (y >= 0) {
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// first go in x direction, then in y
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while (desktop != target) {
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if (x != 0) {
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if (x < 0) {
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x++;
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hash.insert(desktop, DesktopChangeItem::LEFT);
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desktop = m_wspace->desktopToLeft(desktop);
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} else {
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x--;
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hash.insert(desktop, DesktopChangeItem::RIGHT);
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desktop = m_wspace->desktopToRight(desktop);
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}
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continue;
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}
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y--;
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hash.insert(desktop, DesktopChangeItem::DOWN);
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desktop = m_wspace->desktopBelow(desktop);
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}
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} else {
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// first go in y direction, then in x
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while (target != desktop) {
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if (y != 0) {
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// only go upward
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y++;
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hash.insert(desktop, DesktopChangeItem::UP);
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desktop = m_wspace->desktopAbove(desktop);
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continue;
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}
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if (x != 0) {
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if (x < 0) {
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x++;
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hash.insert(desktop, DesktopChangeItem::LEFT);
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desktop = m_wspace->desktopToLeft(desktop);
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} else {
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x--;
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hash.insert(desktop, DesktopChangeItem::RIGHT);
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desktop = m_wspace->desktopToRight(desktop);
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}
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}
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}
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}
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// now we know which desktop has to show an arrow -> set the arrow for each desktop
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int numberOfArrows = qAbs(diff.x()) + qAbs(diff.y());
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foreach (QGraphicsItem * it, m_scene->items()) {
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DesktopChangeItem* item = qgraphicsitem_cast< DesktopChangeItem* >(it);
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if (item) {
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if (hash.contains(item->desktop())) {
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QPoint distance = m_wspace->desktopGridCoords(m_wspace->currentDesktop())
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- m_wspace->desktopGridCoords(item->desktop());
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int desktopDistance = numberOfArrows - (qAbs(distance.x()) + qAbs(distance.y()));
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int start = m_delayTime / numberOfArrows * desktopDistance - m_delayTime * 0.15f;
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int stop = m_delayTime / numberOfArrows * (desktopDistance + 1) + m_delayTime * 0.15f;
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start = qMax(start, 0);
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item->setArrow(hash[ item->desktop()], start, stop);
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} else {
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item->setArrow(DesktopChangeItem::NONE, 0, 0);
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}
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if (old != m_wspace->currentDesktop()) {
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if (item->desktop() == m_wspace->currentDesktop())
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item->startDesktopHighLightAnimation(m_delayTime * 0.33);
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if (m_active && item->desktop() == old)
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item->stopDesktopHighLightAnimation();
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}
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}
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}
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if (m_active) {
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// for text only we need to resize
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if (m_textOnly)
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resize();
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// already active - just update and reset timer
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update();
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} else {
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m_active = true;
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resize();
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show();
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raise();
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}
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// Set a zero inputmask, effectively making clicks go "through" the popup
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// For those who impatiently wait to click on a dialog behind the it
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XShapeCombineRectangles(display(), winId(), ShapeInput, 0, 0, NULL, 0, ShapeSet, Unsorted);
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m_delayedHideTimer.start(m_delayTime);
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}
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void DesktopChangeOSD::hideEvent(QHideEvent*)
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{
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m_delayedHideTimer.stop();
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m_active = false;
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}
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void DesktopChangeOSD::drawBackground(QPainter* painter, const QRectF& rect)
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{
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painter->save();
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painter->setCompositionMode(QPainter::CompositionMode_Source);
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qreal left, top, right, bottom;
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m_frame.getMargins(left, top, right, bottom);
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m_frame.paintFrame(painter, rect.adjusted(-left, -top, right, bottom));
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painter->restore();
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}
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void DesktopChangeOSD::numberDesktopsChanged()
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{
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foreach (QGraphicsItem * it, m_scene->items()) {
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DesktopChangeItem* item = qgraphicsitem_cast<DesktopChangeItem*>(it);
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if (item) {
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m_scene->removeItem(item);
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}
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}
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if (!m_textOnly) {
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for (int i = 1; i <= m_wspace->numberOfDesktops(); i++) {
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DesktopChangeItem* item = new DesktopChangeItem(m_wspace, this, i);
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m_scene->addItem(item);
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}
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}
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}
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void DesktopChangeOSD::resize()
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{
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QRect screenRect = m_wspace->clientArea(ScreenArea, m_wspace->activeScreen(), m_wspace->currentDesktop());
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QRect fullRect = m_wspace->clientArea(FullArea, m_wspace->activeScreen(), m_wspace->currentDesktop());
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qreal left, top, right, bottom;
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m_frame.getMargins(left, top, right, bottom);
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QSize desktopGridSize = m_wspace->desktopGridSize();
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float itemWidth = fullRect.width() * 0.1f;
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float itemHeight = fullRect.height() * 0.1f;
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// 2 px distance between each desktop + each desktop a width of 5 % of full screen + borders
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float width = (desktopGridSize.width() - 1) * 2 + desktopGridSize.width() * itemWidth + left + right;
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float height = (desktopGridSize.height() - 1) * 2 + top + bottom;
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// bound width between ten and 33 percent of active screen
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float tempWidth = qBound(screenRect.width() * 0.25f, width, screenRect.width() * 0.5f);
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if (tempWidth != width) {
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// have to adjust the height
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width = tempWidth;
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itemWidth = (width - (desktopGridSize.width() - 1) * 2 - left - right) / desktopGridSize.width();
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itemHeight = itemWidth * (float)((float)fullRect.height() / (float)fullRect.width());
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}
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height += itemHeight * desktopGridSize.height();
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height += fontMetrics().height() + 4;
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// we do not increase height, but it's bound to a third of screen height
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float tempHeight = qMin(height, screenRect.height() * 0.5f);
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float itemOffset = 0.0f;
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if (tempHeight != height) {
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// have to adjust item width
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height = tempHeight;
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itemHeight = (height - (fontMetrics().height() + 4) - top - bottom - (desktopGridSize.height() - 1) * 2) /
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desktopGridSize.height();
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itemOffset = itemWidth;
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itemWidth = itemHeight * (float)((float)fullRect.width() / (float)fullRect.height());
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itemOffset -= itemWidth;
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itemOffset *= (float)desktopGridSize.width() * 0.5f;
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}
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// set size to the desktop name if the "pager" is not shown
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if (m_textOnly) {
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height = fontMetrics().height() + 4 + top + bottom;
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width = fontMetrics().boundingRect(m_wspace->desktopName(m_wspace->currentDesktop())).width() +
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4 + left + right;
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}
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QRect rect = QRect(screenRect.x() + (screenRect.width() - width) / 2,
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screenRect.y() + (screenRect.height() - height) / 2,
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width,
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height);
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setGeometry(rect);
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m_scene->setSceneRect(0, 0, width, height);
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m_frame.resizeFrame(QSize(width, height));
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if (Plasma::Theme::defaultTheme()->windowTranslucencyEnabled()) {
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// blur background
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Plasma::WindowEffects::enableBlurBehind(winId(), true, m_frame.mask());
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Plasma::WindowEffects::overrideShadow(winId(), true);
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} else {
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// do not trim to mask with compositing enabled, otherwise shadows are cropped
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setMask(m_frame.mask());
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}
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// resize item frame
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m_item_frame.setElementPrefix("normal");
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m_item_frame.resizeFrame(QSize(itemWidth, itemHeight));
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m_item_frame.setElementPrefix("hover");
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m_item_frame.resizeFrame(QSize(itemWidth, itemHeight));
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// reset the items
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foreach (QGraphicsItem * it, m_scene->items()) {
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DesktopChangeItem* item = qgraphicsitem_cast<DesktopChangeItem*>(it);
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if (item) {
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item->setWidth(itemWidth);
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item->setHeight(itemHeight);
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QPoint coords = m_wspace->desktopGridCoords(item->desktop());
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item->setPos(left + itemOffset + coords.x()*(itemWidth + 2),
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top + fontMetrics().height() + 4 + coords.y()*(itemHeight + 4));
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}
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DesktopChangeText* text = qgraphicsitem_cast<DesktopChangeText*>(it);
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if (text) {
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text->setPos(left, top);
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text->setWidth(width - left - right);
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if (m_textOnly)
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text->setHeight(fontMetrics().height() + 4);
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else
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text->setHeight(fontMetrics().height());
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}
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}
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}
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//*******************************
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// DesktopChangeText
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//*******************************
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DesktopChangeText::DesktopChangeText(Workspace* ws)
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: QGraphicsItem()
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, m_wspace(ws)
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, m_width(0.0f)
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, m_height(0.0f)
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{
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}
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DesktopChangeText::~DesktopChangeText()
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{
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}
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QRectF DesktopChangeText::boundingRect() const
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{
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return QRectF(0, 0, m_width, m_height);
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}
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void DesktopChangeText::paint(QPainter* painter, const QStyleOptionGraphicsItem* , QWidget*)
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{
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painter->setPen(Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor));
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painter->drawText(boundingRect(), Qt::AlignCenter | Qt:: AlignVCenter,
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m_wspace->desktopName(m_wspace->currentDesktop()));
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}
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//*******************************
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// DesktopChangeItem
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//*******************************
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DesktopChangeItem::DesktopChangeItem(Workspace* ws, DesktopChangeOSD* parent, int desktop)
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: QGraphicsItem()
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, m_wspace(ws)
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, m_parent(parent)
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, m_desktop(desktop)
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, m_width(0.0f)
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, m_height(0.0f)
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, m_arrow(NONE)
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, m_arrowShown(false)
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, m_fadeInArrow(false)
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, m_fadeInHighLight(false)
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, m_arrowValue(0.0)
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, m_highLightValue(0.0)
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{
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m_delayed_show_arrow_timer.setSingleShot(true);
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m_delayed_hide_arrow_timer.setSingleShot(true);
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connect(&m_delayed_show_arrow_timer, SIGNAL(timeout()), this, SLOT(showArrow()));
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connect(&m_delayed_hide_arrow_timer, SIGNAL(timeout()), this, SLOT(hideArrow()));
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}
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DesktopChangeItem::~DesktopChangeItem()
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{
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}
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QRectF DesktopChangeItem::boundingRect() const
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{
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return QRectF(0, 0, m_width, m_height);
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}
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void DesktopChangeItem::setArrow(Arrow arrow, int start_delay, int hide_delay)
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{
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// stop timers
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m_delayed_show_arrow_timer.stop();
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m_delayed_hide_arrow_timer.stop();
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if (arrowAnimation) {
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arrowAnimation->stop();
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m_arrowAnimation.clear();
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}
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m_arrowShown = false;
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m_arrow = arrow;
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if (m_arrow != NONE) {
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m_delayed_show_arrow_timer.start(start_delay);
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m_delayed_hide_arrow_timer.start(hide_delay);
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}
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}
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qreal DesktopChangeItem::arrowValue() const
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{
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qCritical() << __func__ << m_arrowValue;
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return m_arrowValue;
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}
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qreal DesktopChangeItem::highLightValue() const
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{
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return m_highLightValue;
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}
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void DesktopChangeItem::setArrowValue(qreal value)
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{
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m_arrowValue = value;
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update();
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}
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void DesktopChangeItem::setHighLightValue(qreal value)
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{
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m_highLightValue = value;
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update();
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}
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void DesktopChangeItem::showArrow()
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{
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m_arrowShown = true;
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if (!arrowAnimation) {
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arrowAnimation = new QPropertyAnimation(this, "arrowValue");
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arrowAnimation->setDuration(m_parent->getDelayTime() * 0.15f);
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arrowAnimation->setStartValue(0.0);
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arrowAnimation->setEndValue(1.0);
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m_arrowAnimation = arrowAnimation;
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}
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m_fadeInArrow = true;
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arrowAnimation->setEasingCurve(QEasingCurve::InQuad);
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arrowAnimation->setDirection(QAbstractAnimation::Forward);
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arrowAnimation->start();
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}
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void DesktopChangeItem::hideArrow()
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{
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m_fadeInArrow = false;
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QPropertyAnimation *arrowAnimation = m_arrowAnimation.data();
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if (arrowAnimation) {
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arrowAnimation->setEasingCurve(QEasingCurve::OutQuad);
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arrowAnimation->setDirection(QAbstractAnimation::Backward);
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arrowAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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connect(arrowAnimation, SIGNAL(finished()), this, SLOT(arrowAnimationFinished()));
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}
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}
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void DesktopChangeItem::startDesktopHighLightAnimation(int time)
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{
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QPropertyAnimation *highLightAnimation = m_highLightAnimation.data();
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if (!highLightAnimation) {
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highLightAnimation = new QPropertyAnimation(this, "highLightValue");
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highLightAnimation->setDuration(time);
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highLightAnimation->setStartValue(0.0);
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highLightAnimation->setEndValue(1.0);
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m_highLightAnimation = highLightAnimation;
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}
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m_fadeInHighLight = true;
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highLightAnimation->setEasingCurve(QEasingCurve::InQuad);
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highLightAnimation->setDirection(QAbstractAnimation::Forward);
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highLightAnimation->start();
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}
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void DesktopChangeItem::stopDesktopHighLightAnimation()
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{
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m_fadeInHighLight = false;
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QPropertyAnimation *highLightAnimation = m_highLightAnimation.data();
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if (highLightAnimation) {
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highLightAnimation->setEasingCurve(QEasingCurve::OutQuad);
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highLightAnimation->setDirection(QAbstractAnimation::Backward);
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highLightAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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}
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}
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void DesktopChangeItem::arrowAnimationFinished()
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{
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if (!m_fadeInArrow)
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m_arrowShown = false;
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}
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void DesktopChangeItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* , QWidget*)
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{
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if (m_wspace->currentDesktop() == m_desktop || (!m_highLightAnimation.isNull() &&
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m_highLightAnimation.data()->state() == QAbstractAnimation::Running)) {
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qreal left, top, right, bottom;
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m_parent->itemFrame()->getMargins(left, top, right, bottom);
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if (!m_highLightAnimation.isNull() &&
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m_highLightAnimation.data()->state() == QAbstractAnimation::Running) {
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// there is an animation - so we use transition from normal to active or vice versa
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if (m_fadeInHighLight) {
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m_parent->itemFrame()->setElementPrefix("normal");
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QPixmap normal = m_parent->itemFrame()->framePixmap();
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m_parent->itemFrame()->setElementPrefix("hover");
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QPixmap result = Plasma::PaintUtils::transition(normal,
|
|
m_parent->itemFrame()->framePixmap(), m_highLightValue);
|
|
painter->drawPixmap(boundingRect().toRect(), result);
|
|
} else {
|
|
m_parent->itemFrame()->setElementPrefix("hover");
|
|
QPixmap normal = m_parent->itemFrame()->framePixmap();
|
|
m_parent->itemFrame()->setElementPrefix("normal");
|
|
QPixmap result = Plasma::PaintUtils::transition(normal,
|
|
m_parent->itemFrame()->framePixmap(), 1.0 - m_highLightValue);
|
|
painter->drawPixmap(boundingRect().toRect(), result);
|
|
}
|
|
} else {
|
|
// no animation - just render the active frame
|
|
m_parent->itemFrame()->setElementPrefix("hover");
|
|
m_parent->itemFrame()->paintFrame(painter, boundingRect());
|
|
}
|
|
QColor rectColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
|
|
rectColor.setAlphaF(0.6 * m_highLightValue);
|
|
QBrush rectBrush = QBrush(rectColor);
|
|
painter->fillRect(boundingRect().adjusted(left, top, -right, -bottom), rectBrush);
|
|
} else {
|
|
m_parent->itemFrame()->setElementPrefix("normal");
|
|
m_parent->itemFrame()->paintFrame(painter, boundingRect());
|
|
}
|
|
|
|
if (!m_arrowShown)
|
|
return;
|
|
// paint the arrow
|
|
QPixmap icon;
|
|
int iconWidth = 32;
|
|
qreal maxsize = qMin(boundingRect().width(), boundingRect().height());
|
|
if (maxsize > 128.0)
|
|
iconWidth = 128;
|
|
else if (maxsize > 64.0)
|
|
iconWidth = 64.0;
|
|
else if (maxsize > 32.0)
|
|
iconWidth = 32.0;
|
|
else
|
|
iconWidth = 16.0;
|
|
QRect iconRect = QRect(boundingRect().x() + boundingRect().width() / 2 - iconWidth / 2,
|
|
boundingRect().y() + boundingRect().height() / 2 - iconWidth / 2,
|
|
iconWidth, iconWidth);
|
|
switch(m_arrow) {
|
|
case UP:
|
|
icon = KIconLoader::global()->loadIcon("go-up", KIconLoader::Desktop, iconWidth);
|
|
break;
|
|
case DOWN:
|
|
icon = KIconLoader::global()->loadIcon("go-down", KIconLoader::Desktop, iconWidth);
|
|
break;
|
|
case LEFT:
|
|
icon = KIconLoader::global()->loadIcon("go-previous", KIconLoader::Desktop, iconWidth);
|
|
break;
|
|
case RIGHT:
|
|
icon = KIconLoader::global()->loadIcon("go-next", KIconLoader::Desktop, iconWidth);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (m_arrow != NONE) {
|
|
if (!m_arrowAnimation.isNull() &&
|
|
m_arrowAnimation.data()->state() == QAbstractAnimation::Running &&
|
|
!qFuzzyCompare(m_arrowValue, qreal(1.0))) {
|
|
QPixmap temp(icon.size());
|
|
temp.fill(Qt::transparent);
|
|
|
|
QPainter p(&temp);
|
|
p.setCompositionMode(QPainter::CompositionMode_Source);
|
|
p.drawPixmap(0, 0, icon);
|
|
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
|
|
p.fillRect(temp.rect(), QColor(0, 0, 0, 255 * m_arrowValue));
|
|
p.end();
|
|
|
|
icon = temp;
|
|
}
|
|
painter->drawPixmap(iconRect, icon);
|
|
}
|
|
}
|
|
}
|
|
|
|
#include "desktopchangeosd.moc"
|