plasma-framework/private/paneltoolbox.cpp

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/*
* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
* Copyright 2008 by Marco Martin <notmart@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "paneltoolbox_p.h"
#include <QGraphicsSceneHoverEvent>
#include <QPainter>
#include <QRadialGradient>
#include <QApplication>
#include <kcolorscheme.h>
#include <kdebug.h>
#include <plasma/applet.h>
#include <plasma/paintutils.h>
#include <plasma/theme.h>
#include <plasma/svg.h>
namespace Plasma
{
class PanelToolBoxPrivate
{
public:
PanelToolBoxPrivate()
: icon("plasma"),
animId(0),
animFrame(0),
highlighting(false)
{
}
KIcon icon;
int animId;
qreal animFrame;
QColor fgColor;
QColor bgColor;
Plasma::Svg *background;
bool highlighting;
};
PanelToolBox::PanelToolBox(Containment *parent)
: ToolBox(parent),
d(new PanelToolBoxPrivate)
{
connect(this, SIGNAL(toggled()), this, SLOT(toggle()));
setZValue(10000000);
setFlag(ItemClipsChildrenToShape, false);
//panel toolbox is allowed to zoom, otherwise a part of it will be displayed behind the desktop
//toolbox when the desktop is zoomed out
setFlag(ItemIgnoresTransformations, false);
assignColors();
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()),
this, SLOT(assignColors()));
d->background = new Plasma::Svg(this);
d->background->setImagePath("widgets/toolbox");
d->background->setContainsMultipleImages(true);
}
PanelToolBox::~PanelToolBox()
{
delete d;
}
void PanelToolBox::assignColors()
{
d->bgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::BackgroundColor);
d->fgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
}
QRectF PanelToolBox::boundingRect() const
{
QRectF r;
//Only Left,Right and Bottom supported, default to Right
if (corner() == ToolBox::Bottom) {
r = QRectF(0, 0, size() * 2, size());
} else if (corner() == ToolBox::Left) {
r = QRectF(0, 0, size(), size() * 2);
} else {
r = QRectF(0, 0, size(), size() * 2);
}
if (parentItem()) {
QSizeF s = parentItem()->boundingRect().size();
if (r.height() > s.height()) {
r.setHeight(s.height());
}
if (r.width() > s.width()) {
r.setWidth(s.width());
}
}
return r;
}
void PanelToolBox::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option)
Q_UNUSED(widget)
const qreal progress = d->animFrame / size();
QRect backgroundRect;
QPoint gradientCenter;
QRectF rect = boundingRect();
QString cornerElement;
if (corner() == ToolBox::Bottom) {
gradientCenter = QPoint(rect.center().x(), rect.bottom());
cornerElement = "panel-south";
backgroundRect = d->background->elementRect(cornerElement).toRect();
backgroundRect.moveBottomLeft(shape().boundingRect().bottomLeft().toPoint());
} else if (corner() == ToolBox::Right) {
gradientCenter = QPoint(rect.right(), rect.center().y());
cornerElement = "panel-east";
backgroundRect = d->background->elementRect(cornerElement).toRect();
backgroundRect.moveTopRight(shape().boundingRect().topRight().toPoint());
} else {
gradientCenter = QPoint(rect.right(), rect.center().y());
cornerElement = "panel-west";
backgroundRect = d->background->elementRect(cornerElement).toRect();
backgroundRect.moveTopLeft(shape().boundingRect().topLeft().toPoint());
}
d->background->paint(painter, backgroundRect, cornerElement);
QRect iconRect;
//Only Left,Right and Bottom supported, default to Right
if (corner() == ToolBox::Bottom) {
iconRect = QRect(QPoint(gradientCenter.x() - iconSize().width() / 2,
(int)rect.bottom() - iconSize().height() - 2), iconSize());
} else if (corner() == ToolBox::Left) {
iconRect = QRect(QPoint(2, gradientCenter.y() - iconSize().height() / 2), iconSize());
} else {
iconRect = QRect(QPoint((int)rect.right() - iconSize().width() + 1,
gradientCenter.y() - iconSize().height() / 2), iconSize());
}
if (qFuzzyCompare(qreal(1.0), progress)) {
d->icon.paint(painter, iconRect);
} else if (qFuzzyCompare(qreal(1.0), 1 + progress)) {
d->icon.paint(painter, iconRect, Qt::AlignCenter, QIcon::Disabled, QIcon::Off);
} else {
QPixmap disabled = d->icon.pixmap(iconSize(), QIcon::Disabled, QIcon::Off);
QPixmap enabled = d->icon.pixmap(iconSize());
QPixmap result = PaintUtils::transition(
d->icon.pixmap(iconSize(), QIcon::Disabled, QIcon::Off),
d->icon.pixmap(iconSize()), progress);
painter->drawPixmap(iconRect, result);
}
}
QPainterPath PanelToolBox::shape() const
{
QPainterPath path;
int toolSize = size();// + (int)d->animFrame;
QRectF rect = boundingRect();
//Only Left,Right and Bottom supported, default to Right
if (corner() == ToolBox::Bottom) {
path.moveTo(rect.bottomLeft());
path.arcTo(QRectF(rect.center().x() - toolSize,
rect.bottom() - toolSize,
toolSize * 2,
toolSize * 2), 0, 180);
} else if (corner() == ToolBox::Left) {
path.arcTo(QRectF(rect.left(),
rect.center().y() - toolSize,
toolSize * 2,
toolSize * 2), 90, -180);
} else {
path.moveTo(rect.topRight());
path.arcTo(QRectF(rect.left(),
rect.center().y() - toolSize,
toolSize * 2,
toolSize * 2), 90, 180);
}
return path;
}
void PanelToolBox::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
highlight(true);
QGraphicsItem::hoverEnterEvent(event);
}
void PanelToolBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
//kDebug() << event->pos() << event->scenePos()
if (!showing()) {
highlight(false);
}
QGraphicsItem::hoverLeaveEvent(event);
}
void PanelToolBox::showToolBox()
{
setShowing(true);
highlight(true);
}
void PanelToolBox::hideToolBox()
{
setShowing(false);
highlight(false);
}
void PanelToolBox::highlight(bool highlighting)
{
if (d->highlighting == highlighting) {
return;
}
Plasma::Animator *animdriver = Plasma::Animator::self();
if (d->animId) {
animdriver->stopCustomAnimation(d->animId);
}
d->highlighting = highlighting;
d->animId = animdriver->customAnimation(10, 240,
highlighting ? Plasma::Animator::EaseInCurve
: Plasma::Animator::EaseOutCurve,
this, "animate");
}
void PanelToolBox::animate(qreal progress)
{
if (d->highlighting) {
d->animFrame = size() * progress;
} else {
d->animFrame = size() * (1.0 - progress);
}
//kDebug() << "animating at" << progress << "for" << d->animFrame;
if (progress >= 1) {
d->animId = 0;
}
update();
}
void PanelToolBox::toggle()
{
setShowing(!showing());
highlight(showing());
}
} // plasma namespace
#include "paneltoolbox_p.moc"