3674a94a99
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=870169
507 lines
15 KiB
C++
507 lines
15 KiB
C++
/*
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
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* Copyright 2008 by Marco Martin <notmart@gmail.com>
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*
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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 Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "desktoptoolbox_p.h"
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#include <QGraphicsSceneHoverEvent>
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#include <QPainter>
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#include <QRadialGradient>
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#include <QGraphicsView>
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#include <plasma/theme.h>
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#include <plasma/paintutils.h>
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#include <KColorScheme>
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#include <KDebug>
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#include <plasma/applet.h>
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namespace Plasma
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{
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class EmptyGraphicsItem : public QGraphicsItem
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{
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public:
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EmptyGraphicsItem(QGraphicsItem *parent)
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: QGraphicsItem(parent)
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{
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setAcceptsHoverEvents(true);
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}
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QRectF boundingRect() const
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{
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return QRectF(QPointF(0, 0), m_rect.size());
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}
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QRectF rect() const
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{
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return m_rect;
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}
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void setRect(const QRectF &rect)
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{
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//kDebug() << "setting rect to" << rect;
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prepareGeometryChange();
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m_rect = rect;
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setPos(rect.topLeft());
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}
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void paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
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{
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Q_UNUSED(p)
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//p->setPen(Qt::red);
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//p->drawRect(boundingRect());
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}
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private:
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QRectF m_rect;
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};
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// used with QGrahphicsItem::setData
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static const int ToolName = 7001;
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class DesktopToolBoxPrivate
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{
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public:
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DesktopToolBoxPrivate()
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: icon("plasma"),
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toolBacker(0),
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animCircleId(0),
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animHighlightId(0),
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animCircleFrame(0),
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animHighlightFrame(0),
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hovering(0)
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{}
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KIcon icon;
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EmptyGraphicsItem *toolBacker;
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int animCircleId;
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int animHighlightId;
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qreal animCircleFrame;
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qreal animHighlightFrame;
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QRect shapeRect;
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bool hovering : 1;
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};
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DesktopToolBox::DesktopToolBox(QGraphicsItem *parent)
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: ToolBox(parent),
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d(new DesktopToolBoxPrivate)
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{
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connect(Plasma::Animator::self(), SIGNAL(movementFinished(QGraphicsItem*)),
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this, SLOT(toolMoved(QGraphicsItem*)));
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connect(this, SIGNAL(toggled()), this, SLOT(toggle()));
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setZValue(10000000);
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setFlag(ItemClipsToShape, true);
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setFlag(ItemClipsChildrenToShape, false);
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setFlag(ItemIgnoresTransformations, true);
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}
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DesktopToolBox::~DesktopToolBox()
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{
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delete d;
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}
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QRectF DesktopToolBox::boundingRect() const
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{
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Corner c = corner();
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qreal width;
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qreal height;
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if (c == Left || c == Right) {
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height = size() * 4;
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} else {
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height = size() * 2;
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}
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if (c == Bottom || c == BottomRight || c == BottomLeft) {
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height = -height;
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}
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if (c == Top || c == Bottom) {
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width = size() * 4;
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} else {
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width = size() * 2;
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}
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if (c == Right || c == TopRight || c == BottomRight) {
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width = -width;
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}
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return QRectF(0, 0, width, height);
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}
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void DesktopToolBox::paint(QPainter *painter,
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const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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painter->save();
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painter->translate(boundingRect().topLeft());
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QColor color1 = KColorScheme(QPalette::Active, KColorScheme::Window,
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Plasma::Theme::defaultTheme()->colorScheme()).background().color();
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color1.setAlpha(64);
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QColor color2 = KColorScheme(QPalette::Active, KColorScheme::Window,
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Plasma::Theme::defaultTheme()->colorScheme()).foreground().color();
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color2.setAlpha(64);
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QPainterPath p = shape();
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QPoint iconPos;
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QPointF gradientCenter;
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switch (corner()) {
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case TopRight:
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iconPos = QPoint((int)boundingRect().left() - iconSize().width() + 2, 2);
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gradientCenter = boundingRect().topLeft();
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break;
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case Top:
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iconPos = QPoint(boundingRect().center().x() - iconSize().width() / 2, 2);
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gradientCenter = QPoint(boundingRect().center().x(), boundingRect().y());
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break;
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case TopLeft:
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iconPos = QPoint(2, 2);
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gradientCenter = boundingRect().topLeft();
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break;
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case Left:
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iconPos = QPoint(2, boundingRect().center().y() - iconSize().height() / 2);
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gradientCenter = QPointF(boundingRect().left(), boundingRect().center().y());
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break;
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case Right:
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iconPos = QPoint((int)boundingRect().left() - iconSize().width() + 2,
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boundingRect().center().y() - iconSize().height() / 2);
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gradientCenter = QPointF(boundingRect().left(), boundingRect().center().y());
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break;
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case BottomLeft:
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iconPos = QPoint(2, boundingRect().top() - iconSize().height() - 2);
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gradientCenter = boundingRect().topLeft();
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break;
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case Bottom:
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iconPos = QPoint(boundingRect().center().x() - iconSize().width() / 2,
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boundingRect().top() - iconSize().height() - 2);
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gradientCenter = QPointF(boundingRect().center().x(), boundingRect().top());
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break;
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case BottomRight:
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default:
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iconPos = QPoint((int)boundingRect().left() - iconSize().width() - 2,
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(int)boundingRect().top() - iconSize().height() - 2);
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gradientCenter = boundingRect().topLeft();
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break;
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}
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QRadialGradient gradient(gradientCenter, size() + d->animCircleFrame);
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gradient.setFocalPoint(gradientCenter);
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gradient.setColorAt(0, color1);
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gradient.setColorAt(.87, color1);
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gradient.setColorAt(.97, color2);
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color2.setAlpha(0);
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gradient.setColorAt(1, color2);
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painter->save();
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painter->setPen(Qt::NoPen);
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painter->setRenderHint(QPainter::Antialiasing, true);
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painter->setBrush(gradient);
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painter->drawPath(p);
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painter->restore();
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const qreal progress = d->animHighlightFrame;
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if (qFuzzyCompare(qreal(1.0), progress)) {
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d->icon.paint(painter, QRect(iconPos, iconSize()));
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} else if (qFuzzyCompare(qreal(1.0), 1 + progress)) {
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d->icon.paint(painter, QRect(iconPos, iconSize()),
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Qt::AlignCenter, QIcon::Disabled, QIcon::Off);
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} else {
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QPixmap disabled = d->icon.pixmap(iconSize(), QIcon::Disabled, QIcon::Off);
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QPixmap enabled = d->icon.pixmap(iconSize());
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QPixmap result = PaintUtils::transition(
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d->icon.pixmap(iconSize(), QIcon::Disabled, QIcon::Off),
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d->icon.pixmap(iconSize()), progress);
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painter->drawPixmap(QRect(iconPos, iconSize()), result);
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}
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painter->restore();
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}
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QPainterPath DesktopToolBox::shape() const
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{
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QPainterPath path;
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int toolSize = size() + (int)d->animCircleFrame;
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switch (corner()) {
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case TopRight:
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path.arcTo(QRectF(boundingRect().left() - toolSize, boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 180, 90);
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break;
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case Top:
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path.arcTo(QRectF(boundingRect().center().x() - toolSize,
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boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 180, 180);
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break;
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case TopLeft:
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path.arcTo(QRectF(boundingRect().left() - toolSize,
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boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 270, 90);
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break;
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case Left:
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path.arcTo(QRectF(boundingRect().left() - toolSize,
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boundingRect().center().y() - toolSize,
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toolSize * 2, toolSize * 2), 270, 180);
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break;
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case Right:
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path.arcTo(QRectF(boundingRect().left() - toolSize,
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boundingRect().center().y() - toolSize,
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toolSize * 2, toolSize * 2), 90, 180);
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break;
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case BottomLeft:
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path.arcTo(QRectF(boundingRect().left() - toolSize,
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boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 0, 90);
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break;
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case Bottom:
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path.arcTo(QRectF(boundingRect().center().x() - toolSize,
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boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 0, 180);
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break;
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case BottomRight:
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default:
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path.arcTo(QRectF(boundingRect().left() - toolSize,
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boundingRect().top() - toolSize,
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toolSize * 2, toolSize * 2), 90, 90);
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break;
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}
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return path;
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}
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void DesktopToolBox::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
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{
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if (showing() || d->hovering) {
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QGraphicsItem::hoverEnterEvent(event);
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return;
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}
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Plasma::Animator *animdriver = Plasma::Animator::self();
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if (d->animHighlightId) {
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animdriver->stopCustomAnimation(d->animHighlightId);
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}
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d->hovering = true;
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d->animHighlightId =
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animdriver->customAnimation(
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10, 240, Plasma::Animator::EaseInCurve, this, "animateHighlight");
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QGraphicsItem::hoverEnterEvent(event);
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}
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void DesktopToolBox::showToolBox()
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{
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if (showing()) {
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return;
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}
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int maxwidth = 0;
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foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
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if (!tool->isEnabled()) {
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continue;
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}
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maxwidth = qMax(static_cast<int>(tool->boundingRect().width()), maxwidth);
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}
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// put tools 5px from icon edge
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const int iconWidth = 32;
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int x;
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int y;
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switch (corner()) {
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case TopRight:
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x = (int)boundingRect().left() - maxwidth - iconWidth - 5;
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y = (int)boundingRect().top() + 5;
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break;
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case Top:
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x = (int)boundingRect().center().x() - iconWidth;
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y = (int)boundingRect().top() + iconWidth + 5;
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break;
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case TopLeft:
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x = (int)boundingRect().left() + iconWidth + 5;
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y = (int)boundingRect().top() + 5;
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break;
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case Left:
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x = (int)boundingRect().left() + iconWidth + 5;
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y = (int)boundingRect().center().y() - iconWidth;
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break;
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case Right:
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x = (int)boundingRect().left() - maxwidth - iconWidth - 5;
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y = (int)boundingRect().center().y() - iconWidth;
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break;
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case BottomLeft:
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x = (int)boundingRect().left() + iconWidth + 5;
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y = (int)boundingRect().bottom() - 5;
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break;
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case Bottom:
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x = (int)boundingRect().center().x() - iconWidth;
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y = (int)boundingRect().bottom() - iconWidth - 5;
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break;
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case BottomRight:
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default:
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x = (int)boundingRect().left() - maxwidth - iconWidth - 5;
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y = (int)boundingRect().bottom() - iconWidth - 5;
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break;
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}
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Plasma::Animator *animdriver = Plasma::Animator::self();
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foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
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if (tool == d->toolBacker) {
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continue;
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}
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if (!tool->isEnabled()) {
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if (tool->isVisible()) {
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const int height = static_cast<int>(tool->boundingRect().height());
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animdriver->moveItem(tool, Plasma::Animator::SlideOutMovement,
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toolPosition(height));
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}
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continue;
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}
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//kDebug() << "let's show and move" << tool << tool->boundingRect();
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tool->show();
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animdriver->moveItem(tool, Plasma::Animator::SlideInMovement, QPoint(x, y));
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//x += 0;
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y += static_cast<int>(tool->boundingRect().height()) + 5;
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}
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if (!d->toolBacker) {
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d->toolBacker = new EmptyGraphicsItem(this);
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}
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d->toolBacker->setRect(QRectF(QPointF(x, 0), QSizeF(maxwidth, y - 10)));
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d->toolBacker->show();
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if (d->animCircleId) {
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animdriver->stopCustomAnimation(d->animCircleId);
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}
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setShowing(true);
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// TODO: 10 and 200 shouldn't be hardcoded here. There needs to be a way to
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// match whatever the time is that moveItem() takes. Same in hoverLeaveEvent().
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d->animCircleId =
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animdriver->customAnimation(10, 240, Plasma::Animator::EaseInCurve, this, "animateCircle");
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}
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void DesktopToolBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
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{
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//kDebug() << event->pos() << event->scenePos()
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// << d->toolBacker->rect().contains(event->scenePos().toPoint());
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if (! d->hovering) {
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QGraphicsItem::hoverLeaveEvent(event);
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return;
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}
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hideToolBox();
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Plasma::Animator *animdriver = Plasma::Animator::self();
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if (d->animHighlightId) {
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animdriver->stopCustomAnimation(d->animHighlightId);
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}
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d->hovering = false;
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d->animHighlightId =
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animdriver->customAnimation(
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10, 240, Plasma::Animator::EaseOutCurve, this, "animateHighlight");
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QGraphicsItem::hoverLeaveEvent(event);
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}
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void DesktopToolBox::hideToolBox()
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{
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if (!showing()) {
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return;
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}
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Plasma::Animator *animdriver = Plasma::Animator::self();
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foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
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if (tool == d->toolBacker) {
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continue;
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}
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const int height = static_cast<int>(tool->boundingRect().height());
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animdriver->moveItem(tool, Plasma::Animator::SlideOutMovement, toolPosition(height));
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}
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if (d->animCircleId) {
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animdriver->stopCustomAnimation(d->animCircleId);
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}
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setShowing(false);
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d->animCircleId =
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animdriver->customAnimation(10, 240, Plasma::Animator::EaseOutCurve, this, "animateCircle");
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if (d->toolBacker) {
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d->toolBacker->hide();
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}
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}
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void DesktopToolBox::animateCircle(qreal progress)
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{
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if (showing()) {
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d->animCircleFrame = size() * progress;
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} else {
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d->animCircleFrame = size() * (1.0 - progress);
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}
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if (progress >= 1) {
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d->animCircleId = 0;
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}
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update();
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}
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void DesktopToolBox::animateHighlight(qreal progress)
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{
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if (d->hovering) {
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d->animHighlightFrame = progress;
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} else {
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d->animHighlightFrame = 1.0 - progress;
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}
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if (progress >= 1) {
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d->animHighlightId = 0;
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}
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update();
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}
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void DesktopToolBox::toolMoved(QGraphicsItem *item)
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{
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//kDebug() << "geometry is now " << static_cast<Plasma::Widget*>(item)->geometry();
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if (!showing() &&
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QGraphicsItem::children().indexOf(static_cast<Plasma::Applet*>(item)) != -1) {
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item->hide();
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}
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}
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void DesktopToolBox::toggle()
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{
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if (showing()) {
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hideToolBox();
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} else {
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showToolBox();
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}
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}
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} // plasma namespace
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#include "desktoptoolbox_p.moc"
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