331 lines
8.7 KiB
C++
331 lines
8.7 KiB
C++
/*
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
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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 <plasma/theme.h>
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#include <KColorScheme>
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#include <KDebug>
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#include "widgets/widget.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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DesktopToolbox::DesktopToolbox(QGraphicsItem *parent)
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: QGraphicsItem(parent),
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m_icon("plasma"),
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m_toolBacker(0),
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m_size(50),
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m_showing(false),
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m_animId(0),
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m_animFrame(0)
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{
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setAcceptsHoverEvents(true);
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setZValue(10000);
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setFlag(ItemClipsToShape, true);
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setFlag(ItemClipsChildrenToShape, false);
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connect(Plasma::Phase::self(), SIGNAL(movementComplete(QGraphicsItem*)), this, SLOT(toolMoved(QGraphicsItem*)));
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}
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/*QRectF DesktopToolbox::sizeHint() const
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{
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return boundingRect();
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}*/
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QRectF DesktopToolbox::boundingRect() const
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{
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return QRectF(0, 0, m_size*2, m_size*2);
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}
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void DesktopToolbox::paint(QPainter *painter, 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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QColor color1 = KColorScheme(QPalette::Active, KColorScheme::Window,
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Plasma::Theme::self()->colors()).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::self()->colors()).foreground().color();
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color2.setAlpha(64);
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QPainterPath p = shape();
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QRadialGradient gradient(QPoint(m_size*2, 0), m_size + m_animFrame);
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gradient.setFocalPoint(QPointF(m_size*2, 0));
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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 = m_animFrame / m_size;
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if (progress <= 0.9) {
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m_icon.paint(painter, QRect(m_size*2 - 34, 2, 32, 32), Qt::AlignCenter, QIcon::Disabled, QIcon::Off);
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}
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if (progress > 0.1) {
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painter->save();
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painter->setOpacity(progress);
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m_icon.paint(painter, QRect(m_size*2 - 34, 2, 32, 32));
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painter->restore();
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}
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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 size = m_size + (int)m_animFrame;
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path.moveTo(m_size*2, 0);
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path.arcTo(QRectF(m_size*2 - size, -size, size*2, size*2), 180, 90);
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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 (m_showing) {
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QGraphicsItem::hoverEnterEvent(event);
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return;
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}
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showToolbox();
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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 (m_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 = m_size*2 - maxwidth - iconWidth - 5;
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int y = 5; // pos().y();
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Plasma::Phase* phase = Plasma::Phase::self();
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foreach (QGraphicsItem* tool, QGraphicsItem::children()) {
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if (!tool->isEnabled() || tool == m_toolBacker) {
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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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phase->moveItem(tool, Plasma::Phase::SlideIn, 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 (!m_toolBacker) {
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m_toolBacker = new EmptyGraphicsItem(this);
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}
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m_toolBacker->setRect(QRectF(QPointF(x, 0), QSizeF(maxwidth, y - 10)));
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m_toolBacker->show();
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if (m_animId) {
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phase->stopCustomAnimation(m_animId);
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}
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m_showing = 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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m_animId = phase->customAnimation(10, 240, Plasma::Phase::EaseInCurve, this, "animate");
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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() << m_toolBacker->rect().contains(event->scenePos().toPoint());
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if (m_toolBacker && m_toolBacker->rect().contains(event->scenePos().toPoint())) {
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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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QGraphicsItem::hoverLeaveEvent(event);
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}
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void DesktopToolbox::hideToolbox()
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{
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if (!m_showing) {
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return;
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}
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int x = m_size*2;
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int y = 0;
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Plasma::Phase* phase = Plasma::Phase::self();
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foreach (QGraphicsItem* tool, QGraphicsItem::children()) {
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if (tool == m_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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phase->moveItem(tool, Plasma::Phase::SlideOut, QPoint(x, y-height));
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}
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if (m_animId) {
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phase->stopCustomAnimation(m_animId);
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}
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m_showing = false;
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m_animId = phase->customAnimation(10, 240, Plasma::Phase::EaseOutCurve, this, "animate");
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if (m_toolBacker) {
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m_toolBacker->hide();
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}
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}
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void DesktopToolbox::animate(qreal progress)
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{
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if (m_showing) {
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m_animFrame = m_size * progress;
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} else {
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m_animFrame = m_size * (1.0 - progress);
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}
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//kDebug() << "animating at" << progress << "for" << m_animFrame;
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if (progress >= 1) {
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m_animId = 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 (!m_showing &&
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QGraphicsItem::children().indexOf(static_cast<Plasma::Widget*>(item)) != -1) {
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item->hide();
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}
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}
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void DesktopToolbox::addTool(QGraphicsItem *tool, const QString &name)
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{
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if (!tool) {
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return;
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}
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tool->hide();
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const int height = static_cast<int>(tool->boundingRect().height());
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tool->setPos(QPoint(m_size*2,-height));
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tool->setZValue(zValue() + 1);
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tool->setParentItem(this);
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tool->setData(ToolName, name);
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}
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void DesktopToolbox::enableTool(const QString &toolName, bool visible)
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{
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//kDebug() << (visible? "enabling" : "disabling") << "tool" << toolName;
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QGraphicsItem *t = tool(toolName);
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if (t) {
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t->setEnabled(visible);
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}
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}
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bool DesktopToolbox::isToolEnabled(const QString &toolName) const
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{
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QGraphicsItem *t = tool(toolName);
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if (t) {
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return t->isEnabled();
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}
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return false;
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}
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QGraphicsItem* DesktopToolbox::tool(const QString &toolName) const
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{
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foreach (QGraphicsItem *child, QGraphicsItem::children()) {
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//kDebug() << "checking tool" << child << child->data(ToolName);
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if (child->data(ToolName).toString() == toolName) {
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//kDebug() << "tool found!";
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return child;
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}
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}
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return 0;
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}
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} // plasma namespace
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#include "desktoptoolbox_p.moc"
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