plasma-framework/private/desktoptoolbox.cpp

799 lines
23 KiB
C++
Raw Normal View History

/*
* 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 "desktoptoolbox_p.h"
#include <QGraphicsSceneHoverEvent>
#include <QPainter>
#include <QRadialGradient>
#include <QGraphicsView>
#include <QAction>
#include <kcolorscheme.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <plasma/theme.h>
#include <plasma/paintutils.h>
#include <plasma/framesvg.h>
#include <plasma/applet.h>
#include <plasma/containment.h>
#include <plasma/widgets/iconwidget.h>
namespace Plasma
{
class EmptyGraphicsItem : public QGraphicsItem
{
public:
EmptyGraphicsItem(QGraphicsItem *parent)
: QGraphicsItem(parent),
m_toolbar(false)
{
setAcceptsHoverEvents(true);
m_background = new Plasma::FrameSvg();
m_toolbarBackground = new Plasma::FrameSvg();
m_toolbarBackground->setImagePath("widgets/background");
m_background->setImagePath("widgets/translucentbackground");
m_toolbarBackground->setEnabledBorders(FrameSvg::LeftBorder|FrameSvg::RightBorder|FrameSvg::BottomBorder);
m_background->setEnabledBorders(FrameSvg::AllBorders);
}
~EmptyGraphicsItem()
{
delete m_background;
delete m_toolbarBackground;
}
QRectF boundingRect() const
{
return QRectF(QPointF(0, 0), m_rect.size());
}
QRectF rect() const
{
return m_rect;
}
void setIsToolbar(bool toolbar)
{
m_toolbar = toolbar;
}
bool isToolbar() const
{
return m_toolbar;
}
void getContentsMargins(qreal &left, qreal &top, qreal &right, qreal &bottom)
{
if (m_toolbar) {
m_toolbarBackground->getMargins(left, top, right, bottom);
} else {
m_background->getMargins(left, top, right, bottom);
}
}
QRectF contentsRect() const
{
qreal left, top, right, bottom;
if (m_toolbar) {
m_toolbarBackground->getMargins(left, top, right, bottom);
} else {
m_background->getMargins(left, top, right, bottom);
}
return m_rect.adjusted(left, top, -right, -bottom);
}
void setRect(const QRectF &rect)
{
//kDebug() << "setting rect to" << rect;
prepareGeometryChange();
m_rect = rect;
setPos(m_rect.topLeft());
if (m_toolbar) {
m_toolbarBackground->resizeFrame(m_rect.size());
} else {
m_background->resizeFrame(m_rect.size());
}
}
void paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
{
if (m_toolbar) {
m_toolbarBackground->paintFrame(p);
} else {
m_background->paintFrame(p);
}
}
private:
bool m_toolbar;
QRectF m_rect;
Plasma::FrameSvg *m_toolbarBackground;
Plasma::FrameSvg *m_background;
};
// used with QGrahphicsItem::setData
static const int ToolName = 7001;
class DesktopToolBoxPrivate
{
public:
DesktopToolBoxPrivate(DesktopToolBox *toolbox)
: q(toolbox),
background(0),
containment(0),
icon("plasma"),
toolBacker(0),
animCircleId(0),
animHighlightId(0),
animCircleFrame(0),
animHighlightFrame(0),
hovering(0)
{}
void adjustBackgroundBorders()
{
switch (q->corner()) {
case ToolBox::TopRight:
background->setEnabledBorders(FrameSvg::BottomBorder|FrameSvg::LeftBorder);
break;
case ToolBox::Top:
background->setEnabledBorders(FrameSvg::BottomBorder|FrameSvg::LeftBorder|FrameSvg::RightBorder);
break;
case ToolBox::TopLeft:
background->setEnabledBorders(FrameSvg::BottomBorder|FrameSvg::RightBorder);
break;
case ToolBox::Left:
background->setEnabledBorders(FrameSvg::BottomBorder|FrameSvg::TopBorder|FrameSvg::RightBorder);
break;
case ToolBox::Right:
background->setEnabledBorders(FrameSvg::BottomBorder|FrameSvg::TopBorder|FrameSvg::LeftBorder);
break;
case ToolBox::BottomLeft:
background->setEnabledBorders(FrameSvg::TopBorder|FrameSvg::RightBorder);
break;
case ToolBox::Bottom:
background->setEnabledBorders(FrameSvg::TopBorder|FrameSvg::LeftBorder|FrameSvg::RightBorder);
break;
case ToolBox::BottomRight:
default:
background->setEnabledBorders(FrameSvg::TopBorder|FrameSvg::LeftBorder);
break;
}
}
DesktopToolBox *q;
Plasma::FrameSvg *background;
Containment *containment;
KIcon icon;
EmptyGraphicsItem *toolBacker;
int animCircleId;
int animHighlightId;
qreal animCircleFrame;
qreal animHighlightFrame;
QRect shapeRect;
QColor fgColor;
QColor bgColor;
bool hovering : 1;
};
DesktopToolBox::DesktopToolBox(Containment *parent)
: ToolBox(parent),
d(new DesktopToolBoxPrivate(this))
{
d->background = new Plasma::FrameSvg(this);
d->background->setImagePath("widgets/toolbox");
d->containment = parent;
setZValue(10000000);
setIsMovable(true);
assignColors();
connect(Plasma::Animator::self(), SIGNAL(movementFinished(QGraphicsItem*)),
this, SLOT(toolMoved(QGraphicsItem*)));
connect(this, SIGNAL(toggled()), this, SLOT(toggle()));
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()),
this, SLOT(assignColors()));
}
DesktopToolBox::~DesktopToolBox()
{
delete d;
}
QRectF DesktopToolBox::boundingRect() const
{
int extraSpace = size();
//keep space for the label and a character more
if (!d->containment->activity().isNull()) {
extraSpace = Plasma::Theme::defaultTheme()->fontMetrics().width(d->containment->activity()+"x");
}
//get all borders
d->background->setEnabledBorders(FrameSvg::AllBorders);
qreal left, top, right, bottom;
d->background->getMargins(left, top, right, bottom);
d->adjustBackgroundBorders();
return QRectF(0, 0, size()+left+right+extraSpace, size()+top+bottom+extraSpace);
}
QRectF DesktopToolBox::apparentBoundingRect() const
{
int extraSpace = size();
d->adjustBackgroundBorders();
//keep space for the label and a character more
if (!d->containment->activity().isNull()) {
extraSpace = Plasma::Theme::defaultTheme()->fontMetrics().width(d->containment->activity()+"x");
}
qreal left, top, right, bottom;
d->background->getMargins(left, top, right, bottom);
QRectF rect;
//disable text at corners
if (corner() == TopLeft || corner() == TopRight || corner() == BottomLeft || corner() == BottomRight) {
rect = QRectF(0, 0, size()+left+right, size()+top+bottom);
} else if (corner() == Left || corner() == Right) {
rect = QRectF(0, 0, size()+left+right, size()+extraSpace+top+bottom);
//top or bottom
} else {
rect = QRectF(0, 0, size()+extraSpace+left+right, size()+top+bottom);
}
switch (corner()) {
case TopLeft:
//the rect is ok
break;
case TopRight:
rect.moveTopRight(boundingRect().topRight());
break;
case BottomLeft:
rect.moveBottomLeft(boundingRect().bottomLeft());
break;
case BottomRight:
rect.moveBottomRight(boundingRect().bottomRight());
break;
case Left:
rect.moveLeft(boundingRect().left());
break;
case Right:
rect.moveRight(boundingRect().right());
break;
case Top:
//the rect is ok
break;
case Bottom:
default:
rect.moveBottom(boundingRect().bottom());
}
return rect;
}
void DesktopToolBox::assignColors()
{
d->bgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::BackgroundColor);
d->fgColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor);
}
void DesktopToolBox::toolTriggered(bool)
{
hideToolBox();
}
void DesktopToolBox::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option)
Q_UNUSED(widget)
if (isToolbar()){
return;
}
QPainterPath p = shape();
QPoint iconPos;
QRect backgroundRect;
const QRectF rect = apparentBoundingRect();
const QSize icons = iconSize();
QString cornerElement;
switch (corner()) {
case TopLeft:
cornerElement = "desktop-northwest";
break;
case TopRight:
cornerElement = "desktop-northeast";
break;
case BottomRight:
cornerElement = "desktop-southeast";
break;
case BottomLeft:
cornerElement = "desktop-southwest";
break;
default:
break;
}
QString activityName;
QSize textSize;
if (cornerElement.isNull()) {
activityName = d->containment->activity();
textSize = Plasma::Theme::defaultTheme()->fontMetrics().size(Qt::TextSingleLine, activityName+"x");
}
d->adjustBackgroundBorders();
d->background->resizeFrame(rect.size());
if (!cornerElement.isNull()) {
d->background->paint(painter, rect, cornerElement);
} else {
d->background->paintFrame(painter, rect.topLeft());
}
QRect iconRect;
QRect textRect;
if (corner() == Left || corner() == Right) {
Qt::Alignment alignment;
if (activityName.isNull()) {
alignment = Qt::Alignment(Qt::AlignCenter);
} else {
alignment = Qt::Alignment(Qt::AlignHCenter|Qt::AlignTop);
}
iconRect = QStyle::alignedRect(QApplication::layoutDirection(), alignment, iconSize(), d->background->contentsRect().toRect());
QRect boundRect(QPoint(d->background->contentsRect().top(),
d->background->contentsRect().left()),
QSize(d->background->contentsRect().height(),
d->background->contentsRect().width()));
textRect = QStyle::alignedRect(QApplication::layoutDirection(), Qt::AlignRight|Qt::AlignVCenter, textSize, boundRect);
textRect.moveTopLeft(textRect.topLeft() + QPoint(rect.top(), rect.left()));
} else {
Qt::Alignment alignment;
if (activityName.isNull()) {
alignment = Qt::Alignment(Qt::AlignCenter);
} else {
alignment = Qt::Alignment(Qt::AlignLeft|Qt::AlignVCenter);
}
iconRect = QStyle::alignedRect(QApplication::layoutDirection(), alignment, iconSize(), d->background->contentsRect().toRect());
textRect = QStyle::alignedRect(QApplication::layoutDirection(), Qt::AlignRight|Qt::AlignVCenter, textSize, d->background->contentsRect().toRect());
textRect.moveTopLeft(textRect.topLeft() + rect.topLeft().toPoint());
}
iconRect.moveTopLeft(iconRect.topLeft() + rect.topLeft().toPoint());
iconPos = iconRect.topLeft();
const qreal progress = d->animHighlightFrame;
if (qFuzzyCompare(qreal(1.0), progress)) {
d->icon.paint(painter, QRect(iconPos, iconSize()));
} else if (qFuzzyCompare(qreal(1.0), 1 + progress)) {
d->icon.paint(painter, QRect(iconPos, iconSize()),
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(QRect(iconPos, iconSize()), result);
}
if (!cornerElement.isNull() || activityName.isNull()) {
return;
}
QColor textColor = Plasma::Theme::defaultTheme()->color(Theme::TextColor);
QColor shadowColor;
QPoint shadowOffset;
if (qGray(textColor.rgb()) > 192) {
shadowColor = Qt::black;
shadowOffset = QPoint(1,1);
} else {
shadowColor = Qt::white;
shadowOffset = QPoint(0,0);
}
QPixmap shadowText = Plasma::PaintUtils::shadowText(activityName, textColor, shadowColor, shadowOffset);
painter->save();
if (corner() == Left || corner() == Right) {
painter->rotate(90);
painter->translate(textRect.left(), -textRect.top()-textRect.height());
painter->drawPixmap(QPoint(0,0), shadowText);
} else {
painter->drawPixmap(textRect.topLeft(), shadowText);
}
painter->restore();
}
QPainterPath DesktopToolBox::shape() const
{
const QRectF rect = apparentBoundingRect();
const int w = rect.width();
const int h = rect.height();
QPainterPath path;
switch (corner()) {
case BottomLeft:
path.moveTo(rect.bottomLeft());
path.arcTo(QRectF(rect.left() - w, rect.top(), w * 2, h * 2), 0, 90);
break;
case BottomRight:
path.moveTo(rect.bottomRight());
path.arcTo(QRectF(rect.left(), rect.top(), w * 2, h * 2), 90, 90);
break;
case TopRight:
path.moveTo(rect.topRight());
path.arcTo(QRectF(rect.left(), rect.top() - h, w * 2, h * 2), 180, 90);
break;
case TopLeft:
path.arcTo(QRectF(rect.left() - w, rect.top() - h, w * 2, h * 2), 270, 90);
break;
default:
path.addRect(rect);
break;
}
return path;
}
void DesktopToolBox::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
{
if (showing() || d->hovering) {
QGraphicsItem::hoverEnterEvent(event);
return;
}
Plasma::Animator *animdriver = Plasma::Animator::self();
if (d->animHighlightId) {
animdriver->stopCustomAnimation(d->animHighlightId);
}
d->hovering = true;
d->animHighlightId =
animdriver->customAnimation(
10, 240, Plasma::Animator::EaseInCurve, this, "animateHighlight");
QGraphicsItem::hoverEnterEvent(event);
}
void DesktopToolBox::showToolBox()
{
setFlag(ItemIgnoresTransformations, isToolbar());
if (showing() && !isToolbar()) {
return;
}
// put tools 5px from icon edge
const int iconWidth = KIconLoader::SizeMedium;
int x;
int y;
switch (corner()) {
case TopRight:
x = (int)boundingRect().right() - iconWidth - 5;
y = (int)boundingRect().top() + 10;
break;
case Top:
x = (int)boundingRect().center().x() - iconWidth;
y = (int)boundingRect().top() + iconWidth + 10;
break;
case TopLeft:
x = (int)boundingRect().left() + iconWidth + 5;
y = (int)boundingRect().top() + 10;
break;
case Left:
x = (int)boundingRect().left() + iconWidth + 5;
y = (int)boundingRect().center().y() - iconWidth;
break;
case Right:
x = (int)boundingRect().right() - iconWidth - 5;
y = (int)boundingRect().center().y() - iconWidth;
break;
case BottomLeft:
x = (int)boundingRect().left() + iconWidth + 5;
y = (int)boundingRect().bottom() - 5;
break;
case Bottom:
x = (int)boundingRect().center().x() - iconWidth;
y = (int)boundingRect().bottom() - iconWidth - 5;
break;
case BottomRight:
default:
x = (int)boundingRect().right() - iconWidth - 5;
y = (int)boundingRect().bottom() - iconWidth - 5;
break;
}
int startY = y;
// find our theoretical X and Y end coordinates
int maxWidth = 0;
int maxHeight = 0;
int totalWidth = 0;
foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
if (tool == d->toolBacker) {
continue;
}
Plasma::IconWidget *icon = qgraphicsitem_cast<Plasma::IconWidget *>(tool);
if (tool->isEnabled()) {
tool->show();
//kDebug() << tool << "is enabled";
y += 5;
QSize toolSize = tool->boundingRect().size().toSize();
totalWidth += toolSize.width() + 5;
maxWidth = qMax(toolSize.width(), maxWidth);
maxHeight = qMax(toolSize.height(), maxHeight);
y += static_cast<int>(tool->boundingRect().height());
}
if (icon) {
if (viewTransform().m11() != Plasma::scalingFactor(Plasma::OverviewZoom) &&
(viewTransform().m11() == Plasma::scalingFactor(Plasma::DesktopZoom) ||
icon->action() == d->containment->action("add sibling containment") ||
icon->action() == d->containment->action("add widgets"))) {
icon->setText(icon->action()->text());
} else {
icon->setText(QString());
}
}
}
if (corner() == TopRight || corner() == Right || corner() == BottomRight) {
x -= maxWidth;
}
//y += 5;
if (!d->toolBacker) {
d->toolBacker = new EmptyGraphicsItem(this);
d->toolBacker->setZValue(zValue() + 1);
}
qreal left, top, right, bottom;
d->toolBacker->getContentsMargins(left, top, right, bottom);
// the rect the tools back should have
QRectF backerRect = QRectF(QPointF(x, startY), QSizeF(maxWidth + left+right, y - startY + top + bottom));
d->toolBacker->setIsToolbar(isToolbar());
if (isToolbar()) {
QPointF topRight;
//could that cast ever fail?
if (d->containment) {
topRight = viewTransform().map(mapFromParent(d->containment->boundingRect().bottomRight()));
} else {
topRight = boundingRect().topRight();
}
backerRect.setSize(QSize(totalWidth+left+right, maxHeight+top+bottom));
backerRect.moveTopRight(topRight);
} else {
//kDebug() << "starting at" << x << startY;
// now check that is actually fits within the parent's boundaries
backerRect = mapToParent(backerRect).boundingRect();
QSizeF parentSize = parentWidget()->size();
if (backerRect.x() < 5) {
backerRect.moveLeft(5);
} else if (backerRect.right() > parentSize.width() - 5) {
backerRect.moveRight(parentSize.width() - 5);
}
if (backerRect.y() < 5) {
backerRect.moveTop(5);
} else if (backerRect.bottom() > parentSize.height() - 5) {
backerRect.moveBottom(parentSize.height() - 5);
}
// re-map our starting points back to our coordinate system
backerRect = mapFromParent(backerRect).boundingRect();
}
x = backerRect.x() + left;
y = backerRect.y() + top;
// now move the items
Plasma::Animator *animdriver = Plasma::Animator::self();
foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
if (tool == d->toolBacker) {
continue;
}
Plasma::IconWidget *icon = qgraphicsitem_cast<Plasma::IconWidget *>(tool);
const QSize iconSizeHint = icon->sizeFromIconSize(KIconLoader::SizeSmallMedium).toSize();
//force max size if we aren't zooming
if (viewTransform().m11() == 1) {
icon->resize(maxWidth, iconSizeHint.height());
} else {
icon->resize(iconSizeHint);
}
if (tool->isEnabled()) {
if (isToolbar()) {
//kDebug() << tool << "is enabled";
x += 5;
//kDebug() << "let's show and move" << tool << tool->boundingRect();
tool->show();
tool->setPos(QPoint(x, y));
x += static_cast<int>(tool->boundingRect().width());
} else {
//kDebug() << tool << "is enabled";
y += 5;
//kDebug() << "let's show and move" << tool << tool->boundingRect();
tool->show();
animdriver->moveItem(tool, Plasma::Animator::SlideInMovement, QPoint(x, y));
//x += 0;
y += static_cast<int>(tool->boundingRect().height());
}
} else if (tool->isVisible()) {
// disabled, but visible, so hide it!
const int height = static_cast<int>(tool->boundingRect().height());
if (isToolbar()) {
tool->hide();
} else {
animdriver->moveItem(tool, Plasma::Animator::SlideOutMovement, toolPosition(height));
}
}
}
d->toolBacker->setRect(backerRect);
d->toolBacker->show();
if (d->animCircleId) {
animdriver->stopCustomAnimation(d->animCircleId);
}
setShowing(true);
}
void DesktopToolBox::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
{
//kDebug() << event->pos() << event->scenePos()
// << d->toolBacker->rect().contains(event->scenePos().toPoint());
if (!d->hovering || showing() || isToolbar()) {
QGraphicsItem::hoverLeaveEvent(event);
return;
}
Plasma::Animator *animdriver = Plasma::Animator::self();
if (d->animHighlightId) {
animdriver->stopCustomAnimation(d->animHighlightId);
}
d->hovering = false;
d->animHighlightId =
animdriver->customAnimation(
10, 240, Plasma::Animator::EaseOutCurve, this, "animateHighlight");
QGraphicsItem::hoverLeaveEvent(event);
}
void DesktopToolBox::hideToolBox()
{
if (!showing()) {
return;
}
Plasma::Animator *animdriver = Plasma::Animator::self();
foreach (QGraphicsItem *tool, QGraphicsItem::children()) {
if (tool == d->toolBacker) {
continue;
}
const int height = static_cast<int>(tool->boundingRect().height());
if (isToolbar()) {
tool->setPos(toolPosition(height));
tool->hide();
} else {
animdriver->moveItem(tool, Plasma::Animator::SlideOutMovement, toolPosition(height));
}
}
if (d->animCircleId) {
animdriver->stopCustomAnimation(d->animCircleId);
}
setShowing(false);
if (d->toolBacker) {
d->toolBacker->hide();
}
}
void DesktopToolBox::animateHighlight(qreal progress)
{
if (d->hovering) {
d->animHighlightFrame = progress;
} else {
d->animHighlightFrame = 1.0 - progress;
}
if (progress >= 1) {
d->animHighlightId = 0;
}
update();
}
void DesktopToolBox::toolMoved(QGraphicsItem *item)
{
//kDebug() << "geometry is now " << static_cast<Plasma::Widget*>(item)->geometry();
if (!showing() &&
QGraphicsItem::children().indexOf(static_cast<Plasma::Applet*>(item)) != -1) {
item->hide();
}
}
void DesktopToolBox::toggle()
{
if (isToolbar()) {
return;
}
if (showing()) {
hideToolBox();
} else {
showToolBox();
}
}
} // plasma namespace
#include "desktoptoolbox_p.moc"