301 lines
8.2 KiB
C++
301 lines
8.2 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 "paneltoolbox_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 <QApplication>
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#include <kcolorscheme.h>
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#include <kdebug.h>
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#include <plasma/applet.h>
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#include <plasma/paintutils.h>
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#include <plasma/theme.h>
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namespace Plasma
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{
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class PanelToolBoxPrivate
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{
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public:
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PanelToolBoxPrivate()
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: icon("plasma"),
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animId(0),
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animFrame(0),
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toggled(false)
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{
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}
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KIcon icon;
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int animId;
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qreal animFrame;
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bool toggled;
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QColor fgColor;
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QColor bgColor;
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};
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PanelToolBox::PanelToolBox(Containment *parent)
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: ToolBox(parent),
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d(new PanelToolBoxPrivate)
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{
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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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//panel toolbox is allowed to zoom, otherwise a part of it will be displayed behind the desktop
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//toolbox when the desktop is zoomed out
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setFlag(ItemIgnoresTransformations, false);
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assignColors();
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connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()),
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this, SLOT(assignColors()));
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}
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PanelToolBox::~PanelToolBox()
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{
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delete d;
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}
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void PanelToolBox::assignColors()
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{
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d->bgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::BackgroundColor);
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d->fgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
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}
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QRectF PanelToolBox::boundingRect() const
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{
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QRectF r;
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//Only Left,Right and Bottom supported, default to Right
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if (corner() == ToolBox::Bottom) {
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r = QRectF(0, 0, size() * 2, size());
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} else if (corner() == ToolBox::Left) {
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r = QRectF(0, 0, size(), size() * 2);
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} else {
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r = QRectF(0, 0, size(), size() * 2);
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}
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if (parentItem()) {
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QSizeF s = parentItem()->boundingRect().size();
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if (r.height() > s.height()) {
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r.setHeight(s.height());
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}
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if (r.width() > s.width()) {
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r.setWidth(s.width());
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}
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}
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return r;
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}
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void PanelToolBox::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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const qreal progress = d->animFrame / size();
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QPoint gradientCenter;
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QRectF rect = boundingRect();
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if (corner() == ToolBox::Bottom) {
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gradientCenter = QPoint(rect.center().x(), rect.bottom());
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} else {
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gradientCenter = QPoint(rect.right(), rect.center().y());
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}
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{
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QRadialGradient gradient(gradientCenter, size() - 2);
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gradient.setFocalPoint(gradientCenter);
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d->bgColor.setAlpha(64);
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d->fgColor.setAlpha(64);
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gradient.setColorAt(0, d->bgColor);
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gradient.setColorAt(.85, d->bgColor);
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gradient.setColorAt(.95, d->fgColor);
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d->fgColor.setAlpha(0);
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gradient.setColorAt(1, d->fgColor);
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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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QPainterPath p = shape();
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painter->drawPath(p);
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painter->restore();
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}
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QRect iconRect;
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//Only Left,Right and Bottom supported, default to Right
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if (corner() == ToolBox::Bottom) {
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iconRect = QRect(QPoint(gradientCenter.x() - iconSize().width() / 2,
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(int)rect.bottom() - iconSize().height() - 2), iconSize());
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} else if (corner() == ToolBox::Left) {
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iconRect = QRect(QPoint(2, gradientCenter.y() - iconSize().height() / 2), iconSize());
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} else {
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iconRect = QRect(QPoint((int)rect.right() - iconSize().width() + 1,
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gradientCenter.y() - iconSize().height() / 2), iconSize());
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}
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if (qFuzzyCompare(qreal(1.0), progress)) {
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d->icon.paint(painter, iconRect);
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} else if (qFuzzyCompare(qreal(1.0), 1 + progress)) {
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d->icon.paint(painter, iconRect, 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(iconRect, result);
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}
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}
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QPainterPath PanelToolBox::shape() const
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{
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QPainterPath path;
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int toolSize = size();// + (int)d->animFrame;
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QRectF rect = boundingRect();
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//Only Left,Right and Bottom supported, default to Right
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if (corner() == ToolBox::Bottom) {
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path.moveTo(rect.bottomLeft());
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path.arcTo(QRectF(rect.center().x() - toolSize,
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rect.bottom() - toolSize,
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toolSize * 2,
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toolSize * 2), 0, 180);
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} else if (corner() == ToolBox::Left) {
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path.arcTo(QRectF(rect.left(),
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rect.center().y() - toolSize,
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toolSize * 2,
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toolSize * 2), 90, -180);
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} else {
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path.moveTo(rect.topRight());
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path.arcTo(QRectF(rect.left(),
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rect.center().y() - toolSize,
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toolSize * 2,
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toolSize * 2), 90, 180);
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}
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return path;
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}
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void PanelToolBox::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
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{
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if (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 PanelToolBox::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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Plasma::Animator *animdriver = Plasma::Animator::self();
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if (d->animId) {
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animdriver->stopCustomAnimation(d->animId);
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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->animId = animdriver->customAnimation(
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10, 240, Plasma::Animator::EaseInCurve, this, "animate");
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}
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void PanelToolBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
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{
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//kDebug() << event->pos() << event->scenePos()
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if (!d->toggled) {
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hideToolBox();
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}
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QGraphicsItem::hoverLeaveEvent(event);
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}
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void PanelToolBox::hideToolBox()
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{
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if (!showing()) {
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return;
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}
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d->toggled = false;
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Plasma::Animator *animdriver = Plasma::Animator::self();
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if (d->animId) {
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animdriver->stopCustomAnimation(d->animId);
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}
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setShowing(false);
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d->animId = animdriver->customAnimation(
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10, 240, Plasma::Animator::EaseOutCurve, this, "animate");
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}
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void PanelToolBox::animate(qreal progress)
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{
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if (showing()) {
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d->animFrame = size() * progress;
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} else {
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d->animFrame = size() * (1.0 - progress);
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}
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//kDebug() << "animating at" << progress << "for" << d->animFrame;
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if (progress >= 1) {
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d->animId = 0;
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}
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update();
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}
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void PanelToolBox::toggle()
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{
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d->toggled = !d->toggled;
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if (showing() && !d->toggled) {
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hideToolBox();
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}
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}
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} // plasma namespace
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#include "paneltoolbox_p.moc"
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