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plasma-framework/extenderitem.cpp
Artur Duque de Souza cae61ee4ca Use enums from KIconLoader 
Instead of using hardcore numbers, it would be great to use the enums provided by 
KIconLoader whenever we use sizes for icons.

Made the change for the obvious ones replacing "16" by KIconLoader::SizeSmall, 
"22" by KIconLoader::SizeSmallMedium and "32" by KIconLoader::SizeMedium.

svn path=/trunk/KDE/kdelibs/; revision=926544
2009-02-15 16:35:52 +00:00

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/*
* Copyright 2008 by Rob Scheepmaker <r.scheepmaker@student.utwente.nl>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "extenderitem.h"
#include <QAction>
#include <QApplication>
#include <QBitmap>
#include <QDrag>
#include <QGraphicsSceneResizeEvent>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsLinearLayout>
#include <QLayout>
#include <QMimeData>
#include <QPainter>
#include <QTimer>
#include <kdebug.h>
#include <kicon.h>
#include <kiconloader.h>
#include "applet.h"
#include "containment.h"
#include "corona.h"
#include "dialog.h"
#include "extender.h"
#include "framesvg.h"
#include "popupapplet.h"
#include "theme.h"
#include "view.h"
#include "widgets/iconwidget.h"
#include "private/applethandle_p.h"
#include "private/extender_p.h"
#include "private/extenderapplet_p.h"
#include "private/extenderitem_p.h"
#include "private/extenderitemmimedata_p.h"
namespace Plasma
{
ExtenderItem::ExtenderItem(Extender *hostExtender, uint extenderItemId)
: QGraphicsWidget(hostExtender),
d(new ExtenderItemPrivate(this, hostExtender))
{
Q_ASSERT(hostExtender);
//set the extenderId
if (extenderItemId) {
d->extenderItemId = extenderItemId;
ExtenderItemPrivate::s_maxExtenderItemId =
qMax(ExtenderItemPrivate::s_maxExtenderItemId, extenderItemId);
} else {
d->extenderItemId = ++ExtenderItemPrivate::s_maxExtenderItemId;
}
//create the toolbox.
d->toolbox = new QGraphicsWidget(this);
d->toolboxLayout = new QGraphicsLinearLayout(d->toolbox);
d->toolbox->setLayout(d->toolboxLayout);
//create items's configgroup
KConfigGroup cg = hostExtender->d->applet->config("ExtenderItems");
KConfigGroup dg = KConfigGroup(&cg, QString::number(d->extenderItemId));
uint sourceAppletId = dg.readEntry("sourceAppletId", 0);
//check if we're creating a new item or reinstantiating an existing one.
if (!sourceAppletId) {
//The item is new
dg.writeEntry("sourceAppletPluginName", hostExtender->d->applet->pluginName());
dg.writeEntry("sourceAppletId", hostExtender->d->applet->id());
dg.writeEntry("extenderIconName", hostExtender->d->applet->icon());
d->sourceApplet = hostExtender->d->applet;
d->collapseIcon = new IconWidget(KIcon(hostExtender->d->applet->icon()), "", this);
} else {
//The item already exists.
d->name = dg.readEntry("extenderItemName", "");
d->title = dg.readEntry("extenderTitle", "");
setCollapsed(dg.readEntry("isCollapsed", false));
QString iconName = dg.readEntry("extenderIconName", "utilities-desktop-extra");
if (iconName.isEmpty()) {
iconName = "utilities-desktop-extra";
}
d->collapseIcon = new IconWidget(KIcon(iconName), "", this);
//Find the sourceapplet.
Corona *corona = hostExtender->d->applet->containment()->corona();
foreach (Containment *containment, corona->containments()) {
foreach (Applet *applet, containment->applets()) {
if (applet->id() == sourceAppletId &&
applet->pluginName() == dg.readEntry("sourceAppletPluginName", "")) {
d->sourceApplet = applet;
}
}
}
}
//make sure we keep monitoring if the source applet still exists, so the return to source icon
//can be hidden if it is removed.
connect(d->sourceApplet, SIGNAL(destroyed()), this, SLOT(sourceAppletRemoved()));
connect(d->collapseIcon, SIGNAL(clicked()), this, SLOT(toggleCollapse()));
//set the extender we want to move to.
setExtender(hostExtender);
//show or hide the return to source icon.
d->updateToolBox();
//set the image paths, image sizes and collapseIcon position.
d->themeChanged();
setAcceptsHoverEvents(true);
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(themeChanged()));
}
ExtenderItem::~ExtenderItem()
{
//make sure the original mousepointer always get's restored.
if (d->mouseOver) {
QApplication::restoreOverrideCursor();
}
delete d;
}
KConfigGroup ExtenderItem::config() const
{
KConfigGroup cg = d->extender->d->applet->config("ExtenderItems");
return KConfigGroup(&cg, QString::number(d->extenderItemId));
}
void ExtenderItem::setTitle(const QString &title)
{
d->title = title;
config().writeEntry("extenderTitle", title);
update();
}
QString ExtenderItem::title() const
{
return d->title;
}
void ExtenderItem::setName(const QString &name)
{
d->name = name;
config().writeEntry("extenderItemName", name);
}
QString ExtenderItem::name() const
{
return d->name;
}
void ExtenderItem::setWidget(QGraphicsItem *widget)
{
widget->setParentItem(this);
widget->installSceneEventFilter(this);
QSizeF panelSize(QSizeF(size().width() - d->bgLeft - d->bgRight,
d->iconSize + d->dragTop + d->dragBottom));
widget->setPos(QPointF(d->bgLeft + d->dragLeft, panelSize.height() +
d->bgTop + d->dragTop));
d->widget = widget;
d->updateSizeHints();
}
QGraphicsItem *ExtenderItem::widget() const
{
return d->widget;
}
void ExtenderItem::setIcon(const QIcon &icon)
{
d->iconName.clear();
d->collapseIcon->setIcon(icon);
}
void ExtenderItem::setIcon(const QString &icon)
{
if (icon != d->iconName) {
d->collapseIcon->setIcon(icon);
d->iconName = icon;
config().writeEntry("extenderIconName", icon);
}
}
QIcon ExtenderItem::icon() const
{
return d->collapseIcon->icon();
}
void ExtenderItem::setExtender(Extender *extender, const QPointF &pos)
{
Q_ASSERT(extender);
//themeChanged() has to now that by now, we're no longer dragging, even though the QDrag has not
//been entirely finished.
d->dragStarted = false;
if (extender == d->extender) {
//We're not moving between extenders, so just insert this item back into the layout.
setParentItem(extender);
extender->d->addExtenderItem(this, pos);
return;
}
//We are switching extender...
//first remove this item from the old extender.
d->extender->d->removeExtenderItem(this);
//move the configuration.
if (d->hostApplet() && (extender != d->extender)) {
KConfigGroup c = extender->d->applet->config("ExtenderItems");
config().reparent(&c);
}
//and notify the applet of the item being detached, after the config has been moved.
emit d->extender->itemDetached(this);
d->extender = extender;
//change parent.
setParentItem(extender);
extender->d->addExtenderItem(this, pos);
//cancel the timer.
if (d->expirationTimer && isDetached()) {
d->expirationTimer->stop();
delete d->expirationTimer;
d->expirationTimer = 0;
}
//we might have to enable or disable the returnToSource button.
d->updateToolBox();
}
Extender *ExtenderItem::extender() const
{
return d->extender;
}
bool ExtenderItem::isCollapsed() const
{
return d->collapsed;
}
void ExtenderItem::setAutoExpireDelay(uint time)
{
if (!time) {
if (d->expirationTimer) {
d->expirationTimer->stop();
delete d->expirationTimer;
d->expirationTimer = 0;
}
return;
}
if (!isDetached()) {
if (!d->expirationTimer) {
d->expirationTimer = new QTimer(this);
connect(d->expirationTimer, SIGNAL(timeout()), this, SLOT(destroy()));
}
d->expirationTimer->stop();
d->expirationTimer->setSingleShot(true);
d->expirationTimer->setInterval(time);
d->expirationTimer->start();
}
}
uint ExtenderItem::autoExpireDelay() const
{
if (d->expirationTimer) {
return d->expirationTimer->interval();
} else {
return 0;
}
}
bool ExtenderItem::isDetached() const
{
if (d->hostApplet()) {
return (d->sourceApplet != d->hostApplet());
} else {
return false;
}
}
void ExtenderItem::addAction(const QString &name, QAction *action)
{
Q_ASSERT(action);
if (d->actionsInOrder.contains(action)) {
return;
}
d->actions.insert(name, action);
d->actionsInOrder.append(action);
connect(action, SIGNAL(changed()), this, SLOT(updateToolBox()));
connect(action, SIGNAL(destroyed(QObject*)), this, SLOT(actionDestroyed(QObject*)));
d->updateToolBox();
}
QAction *ExtenderItem::action(const QString &name) const
{
return d->actions.value(name, 0);
}
void ExtenderItem::showCloseButton()
{
if (d->destroyActionVisibility) {
return;
}
d->destroyActionVisibility = true;
d->updateToolBox();
}
void ExtenderItem::hideCloseButton()
{
if (!d->destroyActionVisibility) {
return;
}
d->destroyActionVisibility = false;
d->updateToolBox();
}
void ExtenderItem::destroy()
{
if (d->dragStarted) {
//avoid being destroyed while we're being dragged.
return;
}
d->hostApplet()->config("ExtenderItems").deleteGroup(QString::number(d->extenderItemId));
d->extender->d->removeExtenderItem(this);
deleteLater();
}
void ExtenderItem::setCollapsed(bool collapsed)
{
config().writeEntry("isCollapsed", collapsed);
d->collapsed = collapsed;
if (d->widget) {
d->widget->setVisible(!collapsed);
d->updateSizeHints();
}
}
void ExtenderItem::returnToSource()
{
if (!d || !d->sourceApplet) {
return;
}
if (d->sourceApplet->d) {
setExtender(d->sourceApplet->extender());
}
}
void ExtenderItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setRenderHint(QPainter::TextAntialiasing, true);
painter->setRenderHint(QPainter::Antialiasing, true);
if (d->background->enabledBorders() != (FrameSvg::LeftBorder | FrameSvg::RightBorder) &&
d->background->enabledBorders()) {
//Don't paint if only the left and right borders are enabled, we only use the left and right
//border in this situation to set the correct margins on this item.
d->background->paintFrame(painter, QPointF(0, 0));
}
d->dragger->paintFrame(painter, QPointF(d->bgLeft, d->bgTop));
//We don't need to paint a title if there is no title.
if (d->title.isEmpty()) {
return;
}
//set the font for the title.
Plasma::Theme *theme = Plasma::Theme::defaultTheme();
QFont font = theme->font(Plasma::Theme::DefaultFont);
font.setWeight(QFont::Bold);
//create a pixmap with the title that is faded out at the right side of the titleRect.
QRectF rect = QRectF(d->titleRect().width() - 30, 0, 30, d->titleRect().height());
QPixmap pixmap(d->titleRect().size().toSize());
pixmap.fill(Qt::transparent);
QPainter p(&pixmap);
p.setPen(theme->color(Plasma::Theme::TextColor));
p.setFont(font);
p.drawText(QRectF(QPointF(0, 0), d->titleRect().size()),
Qt::TextSingleLine | Qt::AlignVCenter | Qt::AlignLeft,
d->title);
// Create the alpha gradient for the fade out effect
QLinearGradient alphaGradient(0, 0, 1, 0);
alphaGradient.setCoordinateMode(QGradient::ObjectBoundingMode);
//TODO: correct handling of right to left text.
alphaGradient.setColorAt(0, QColor(0, 0, 0, 255));
alphaGradient.setColorAt(1, QColor(0, 0, 0, 0));
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
p.fillRect(rect, alphaGradient);
p.end();
painter->drawPixmap(d->titleRect().topLeft(), pixmap);
}
void ExtenderItem::moveEvent(QGraphicsSceneMoveEvent *event)
{
Q_UNUSED(event)
//not needed anymore, but here for binary compatibility
}
void ExtenderItem::resizeEvent(QGraphicsSceneResizeEvent *event)
{
Q_UNUSED(event)
d->themeChanged();
}
void ExtenderItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (!(d->dragHandleRect().contains(event->pos())) ||
d->extender->d->applet->immutability() != Plasma::Mutable) {
event->ignore();
return;
}
d->mousePos = event->pos().toPoint();
}
void ExtenderItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if ((event->pos().toPoint() - d->mousePos).manhattanLength()
< QApplication::startDragDistance()) {
return;
}
//Start the drag:
d->dragStarted = true;
//first update the borders.
d->themeChanged();
//create a view to render the ExtenderItem and it's contents to a pixmap and set up a painter on
//a pixmap.
QGraphicsView view(scene());
QSize screenSize(view.mapFromScene(sceneBoundingRect()).boundingRect().size());
QPixmap pixmap(screenSize);
pixmap.fill(Qt::transparent);
QPainter p(&pixmap);
//the following is necesarry to avoid having an offset when rendering the widget into the
//pixmap.
view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view.setFrameShape(QFrame::NoFrame);
//aim the view and render.
view.resize(screenSize);
view.setSceneRect(sceneBoundingRect());
view.render(&p, QRectF(QPointF(0, 0), pixmap.size()), QRect(QPoint(0, 0), screenSize));
hide();
//create the necesarry mimedata.
ExtenderItemMimeData *mimeData = new ExtenderItemMimeData();
mimeData->setExtenderItem(this);
//Hide empty internal extender containers when we drag the last item away. Avoids having
//an ugly empty applet on the desktop temporarily.
ExtenderApplet *extenderApplet = qobject_cast<ExtenderApplet*>(d->extender->d->applet);
if (extenderApplet && d->extender->attachedItems().count() < 2) {
kDebug() << "leaving the internal extender container, so hide the applet and it's handle.";
extenderApplet->hide();
AppletHandle *handle = qgraphicsitem_cast<AppletHandle*>(extenderApplet->parentItem());
if (handle) {
handle->hide();
}
}
//and execute the drag.
QWidget *dragParent = extender()->d->applet->view();
QDrag *drag = new QDrag(dragParent);
drag->setPixmap(pixmap);
drag->setMimeData(mimeData);
drag->setHotSpot(d->mousePos);
drag->exec();
show();
d->widget->show();
d->dragStarted = false;
}
void ExtenderItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
if (d->titleRect().contains(event->pos())) {
d->toggleCollapse();
}
}
bool ExtenderItem::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
{
if (watched == d->widget && event->type() == QEvent::GraphicsSceneResize) {
d->updateSizeHints();
}
return false;
}
void ExtenderItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
Q_UNUSED(event)
//not needed anymore, but here for binary compatibility
}
void ExtenderItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
{
if (d->titleRect().contains(event->pos()) &&
d->extender->d->applet->immutability() == Plasma::Mutable) {
if (!d->mouseOver) {
QApplication::setOverrideCursor(Qt::OpenHandCursor);
d->mouseOver = true;
}
} else {
if (d->mouseOver) {
QApplication::restoreOverrideCursor();
d->mouseOver = false;
}
}
}
void ExtenderItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
Q_UNUSED(event);
if (d->mouseOver) {
QApplication::restoreOverrideCursor();
d->mouseOver = false;
}
}
ExtenderItemPrivate::ExtenderItemPrivate(ExtenderItem *extenderItem, Extender *hostExtender)
: q(extenderItem),
widget(0),
toolbox(0),
extender(hostExtender),
sourceApplet(0),
dragger(new FrameSvg(extenderItem)),
background(new FrameSvg(extenderItem)),
collapseIcon(0),
title(QString()),
mouseOver(false),
dragStarted(false),
destroyActionVisibility(false),
collapsed(false),
expirationTimer(0),
iconSize(qreal(0))
{
dragLeft = dragTop = dragRight = dragBottom = 0;
bgLeft = bgTop = bgRight = bgBottom = 0;
}
ExtenderItemPrivate::~ExtenderItemPrivate()
{
delete widget;
widget = 0;
}
//returns a Rect containing the area of the detachable where the draghandle will be drawn.
QRectF ExtenderItemPrivate::dragHandleRect()
{
QSizeF panelSize(QSizeF(q->size().width() - bgLeft - bgRight,
iconSize + dragTop + dragBottom));
return QRectF(QPointF(bgLeft, bgTop), panelSize);
}
QRectF ExtenderItemPrivate::titleRect()
{
return dragHandleRect().adjusted(dragLeft + collapseIcon->size().width() + 1, dragTop,
-toolbox->size().width() - dragRight, -dragBottom);
}
void ExtenderItemPrivate::toggleCollapse()
{
q->setCollapsed(!q->isCollapsed());
}
void ExtenderItemPrivate::updateToolBox()
{
Q_ASSERT(toolbox);
Q_ASSERT(dragger);
Q_ASSERT(toolboxLayout);
//TODO: only delete items that actually have to be deleted, current performance is horrible.
while (toolboxLayout->count()) {
QGraphicsLayoutItem *icon = toolboxLayout->itemAt(0);
QGraphicsWidget *widget = dynamic_cast<QGraphicsWidget*>(icon);
widget->deleteLater();
toolboxLayout->removeAt(0);
}
//add the actions that are actually set to visible.
foreach (QAction *action, actionsInOrder) {
if (action->isVisible()) {
IconWidget *icon = new IconWidget(q);
icon->setAction(action);
QSizeF size = icon->sizeFromIconSize(iconSize);
icon->setMinimumSize(size);
icon->setMaximumSize(size);
toolboxLayout->addItem(icon);
}
}
//add the returntosource icon if we are detached, and have a source applet.
if (q->isDetached() && sourceApplet) {
IconWidget *returnToSource = new IconWidget(q);
returnToSource->setSvg("widgets/configuration-icons", "return-to-source");
QSizeF size = returnToSource->sizeFromIconSize(iconSize);
returnToSource->setMinimumSize(size);
returnToSource->setMaximumSize(size);
toolboxLayout->addItem(returnToSource);
QObject::connect(returnToSource, SIGNAL(clicked()), q, SLOT(returnToSource()));
}
//add the close icon if desired.
if (destroyActionVisibility) {
IconWidget *destroyAction = new IconWidget(q);
destroyAction->setSvg("widgets/configuration-icons", "close");
QSizeF size = destroyAction->sizeFromIconSize(iconSize);
destroyAction->setMinimumSize(size);
destroyAction->setMaximumSize(size);
toolboxLayout->addItem(destroyAction);
QObject::connect(destroyAction, SIGNAL(clicked()), q, SLOT(destroy()));
}
toolboxLayout->updateGeometry();
//position the toolbox correctly.
QSizeF minimum = toolboxLayout->minimumSize();
toolbox->resize(minimum);
repositionToolbox();
}
void ExtenderItemPrivate::repositionToolbox()
{
QSizeF minimum = toolboxLayout->minimumSize();
toolbox->setPos(q->size().width() - minimum.width() - bgRight,
(dragHandleRect().height()/2) -
(minimum.height()/2) + bgTop);
}
Applet *ExtenderItemPrivate::hostApplet() const
{
if (extender) {
return extender->d->applet;
} else {
return 0;
}
}
void ExtenderItemPrivate::themeChanged()
{
background->setImagePath("widgets/extender-background");
if (dragStarted) {
background->setEnabledBorders(FrameSvg::AllBorders);
} else {
background->setEnabledBorders(extender->enabledBordersForItem(q));
}
background->getMargins(bgLeft, bgTop, bgRight, bgBottom);
dragger->setImagePath("widgets/extender-dragger");
//Read the preferred icon size hint, look at the font size, and calculate the desired title bar
//icon height.
dragger->resize();
QSizeF size = dragger->elementSize("hint-preferred-icon-size");
size = size.expandedTo(QSizeF(KIconLoader::SizeSmall,KIconLoader::SizeSmall));
Plasma::Theme *theme = Plasma::Theme::defaultTheme();
QFont font = theme->font(Plasma::Theme::DefaultFont);
QFontMetrics fm(font);
iconSize = qMax(size.height(), (qreal) fm.height());
dragger->getMargins(dragLeft, dragTop, dragRight, dragBottom);
QSizeF panelSize(QSizeF(q->size().width() - bgLeft - bgRight,
iconSize + dragTop + dragBottom));
//resize the collapse icon.
collapseIcon->resize(collapseIcon->sizeFromIconSize(iconSize));
//reposition the collapse icon based on the new margins and size.
collapseIcon->setPos(bgLeft + dragLeft,
panelSize.height()/2 -
collapseIcon->size().height()/2 + bgTop);
//reposition the widget based on the new margins.
if (widget) {
widget->setPos(QPointF(bgLeft + dragLeft, panelSize.height() +
bgTop + dragTop));
}
//reposition the toolbox.
repositionToolbox();
updateSizeHints();
if (!q->size().isEmpty())
resizeContent(q->size());
}
void ExtenderItemPrivate::sourceAppletRemoved()
{
//the original source applet is removed, set the pointer to 0 and no longer show the return to
//source icon.
sourceApplet = 0;
updateToolBox();
}
void ExtenderItemPrivate::resizeContent(const QSizeF &newSize)
{
qreal width = newSize.width();
qreal height = newSize.height();
//resize the dragger
dragger->resizeFrame(QSizeF(width - bgLeft - bgRight,
iconSize + dragTop + dragBottom));
//resize the applet background
background->resizeFrame(newSize);
//resize the widget
if (widget && widget->isWidget()) {
QSizeF newWidgetSize(width - bgLeft - bgRight - dragLeft - dragRight,
height - dragHandleRect().height() - bgTop - bgBottom -
2 * dragTop - 2 * dragBottom);
QGraphicsWidget *graphicsWidget = static_cast<QGraphicsWidget*>(widget);
graphicsWidget->resize(newWidgetSize);
}
//reposition the toolbox.
repositionToolbox();
q->update();
}
void ExtenderItemPrivate::actionDestroyed(QObject *o)
{
QAction *action = static_cast<QAction *>(o);
QMutableHashIterator<QString, QAction *> hit(actions);
while (hit.hasNext()) {
if (hit.next().value() == action) {
hit.remove();
break;
}
}
QMutableListIterator<QAction *> lit(actionsInOrder);
while (lit.hasNext()) {
if (lit.next() == action) {
lit.remove();
break;
}
}
}
void ExtenderItemPrivate::updateSizeHints()
{
if (!widget) {
return;
}
qreal marginWidth = bgLeft + bgRight + dragLeft + dragRight;
qreal marginHeight = bgTop + bgBottom + 2 * dragTop + 2 * dragBottom;
QSizeF min;
QSizeF pref;
QSizeF max;
if (widget->isWidget()) {
QGraphicsWidget *graphicsWidget = static_cast<QGraphicsWidget*>(widget);
min = graphicsWidget->minimumSize();
pref = graphicsWidget->preferredSize();
max = graphicsWidget->maximumSize();
} else {
min = widget->boundingRect().size();
pref = widget->boundingRect().size();
max = widget->boundingRect().size();
}
if (collapsed) {
q->setPreferredSize(QSizeF(pref.width() + marginWidth,
dragHandleRect().height() + marginHeight));
q->setMinimumSize(QSizeF(min.width() + marginWidth,
dragHandleRect().height() + marginHeight));
q->setMaximumSize(QSizeF(max.width() + marginWidth,
dragHandleRect().height() + marginHeight));
q->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
if (collapseIcon) {
collapseIcon->setToolTip(i18n("Expand this widget"));
}
} else {
q->setPreferredSize(QSizeF(pref.width() + marginWidth,
pref.height() + dragHandleRect().height() + marginHeight));
q->setMinimumSize(QSizeF(min.width() + marginWidth,
min.height() + dragHandleRect().height() + marginHeight));
q->setMaximumSize(QSizeF(max.width() + marginWidth,
max.height() + dragHandleRect().height() + marginHeight));
//set sane size policies depending on the appearence.
if (extender->d->appearance == Extender::TopDownStacked ||
extender->d->appearance == Extender::BottomUpStacked) {
//used in popups, so fixed make sense.
q->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
} else if (extender->d->appearance == Extender::NoBorders) {
//on the desktop or panel so take all the space we want.
q->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
}
if (collapseIcon) {
collapseIcon->setToolTip(i18n("Collapse this widget"));
}
}
q->updateGeometry();
}
uint ExtenderItemPrivate::s_maxExtenderItemId = 0;
} // namespace Plasma
#include "extenderitem.moc"
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