920 lines
31 KiB
C++
920 lines
31 KiB
C++
/*
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* Copyright 2007 by Kevin Ottens <ervin@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 "private/applethandle_p.h"
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#include <QApplication>
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#include <QBitmap>
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#include <QtGui/QGraphicsSceneMouseEvent>
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#include <QtGui/QLinearGradient>
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#include <QtGui/QPainter>
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#include <QtGui/QApplication>
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#include <KColorScheme>
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#include <KGlobalSettings>
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#include <KIcon>
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#include <KIconLoader>
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#include <KWindowSystem>
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#include <cmath>
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#include <math.h>
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#include "applet.h"
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#include "applet_p.h"
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#include "containment.h"
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#include "corona.h"
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#include "paintutils.h"
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#include "theme.h"
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#include "view.h"
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namespace Plasma
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{
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qreal _k_angleForPoints(const QPointF ¢er, const QPointF &pt1, const QPointF &pt2);
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AppletHandle::AppletHandle(Containment *parent, Applet *applet, const QPointF &hoverPos)
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: QObject(),
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QGraphicsItem(parent),
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m_pressedButton(NoButton),
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m_containment(parent),
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m_applet(applet),
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m_iconSize(16),
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m_opacity(0.0),
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m_anim(FadeIn),
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m_animId(0),
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m_angle(0.0),
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m_tempAngle(0.0),
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m_scaleWidth(1.0),
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m_scaleHeight(1.0),
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m_buttonsOnRight(false),
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m_pendingFade(false),
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m_topview(0),
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m_entryPos(hoverPos)
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{
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KColorScheme colorScheme(QPalette::Active, KColorScheme::View, Theme::defaultTheme()->colorScheme());
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m_gradientColor = colorScheme.background(KColorScheme::NormalBackground).color();
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QTransform originalMatrix = m_applet->transform();
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m_applet->resetTransform();
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QRectF rect(m_applet->contentsRect());
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QPointF center = rect.center();
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originalMatrix.translate(center.x(), center.y());
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qreal cosine = originalMatrix.m11();
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qreal sine = originalMatrix.m12();
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m_angle = _k_angleForPoints(QPointF(0, 0),
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QPointF(1, 0),
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QPointF(cosine, sine));
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m_applet->setParentItem(this);
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rect = QRectF(m_applet->pos(), m_applet->size());
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center = rect.center();
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QTransform matrix;
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matrix.translate(center.x(), center.y());
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matrix.rotateRadians(m_angle);
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matrix.translate(-center.x(), -center.y());
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setTransform(matrix);
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m_hoverTimer = new QTimer(this);
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m_hoverTimer->setSingleShot(true);
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m_hoverTimer->setInterval(333);
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m_leaveTimer = new QTimer(this);
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m_leaveTimer->setSingleShot(true);
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m_leaveTimer->setInterval(500);
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connect(m_hoverTimer, SIGNAL(timeout()), this, SLOT(fadeIn()));
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connect(m_leaveTimer, SIGNAL(timeout()), this, SLOT(leaveTimeout()));
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connect(m_applet, SIGNAL(destroyed(QObject*)), this, SLOT(appletDestroyed()));
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setAcceptsHoverEvents(true);
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m_hoverTimer->start();
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//We got to be able to see the applet while dragging to to another containment,
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//so we want a high zValue.
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//FIXME: apparently this doesn't work: sometimes an applet still get's drawn behind
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//the containment it's being dragged to, sometimes it doesn't.
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m_zValue = m_applet->zValue();
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m_applet->raise();
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m_applet->installSceneEventFilter(this);
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setZValue(m_applet->zValue());
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}
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AppletHandle::~AppletHandle()
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{
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detachApplet();
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if (m_topview) {
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delete m_topview;
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}
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}
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Applet *AppletHandle::applet() const
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{
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return m_applet;
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}
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void AppletHandle::detachApplet ()
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{
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if (!m_applet) {
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return;
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}
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disconnect(m_hoverTimer, SIGNAL(timeout()), this, SLOT(fadeIn()));
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disconnect(m_leaveTimer, SIGNAL(timeout()), this, SLOT(leaveTimeout()));
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m_applet->disconnect(this);
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m_applet->removeSceneEventFilter(this);
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QRectF rect = QRectF(m_applet->pos(), m_applet->size());
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QPointF center = m_applet->mapFromParent(rect.center());
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QPointF newPos = transform().inverted().map(m_applet->pos());
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m_applet->setPos(mapToParent(newPos));
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QTransform matrix;
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matrix.translate(center.x(), center.y());
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matrix.rotateRadians(m_angle);
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matrix.translate(-center.x(), -center.y());
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m_applet->setTransform(matrix);
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m_applet->setParentItem(m_containment);
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m_applet->setZValue(m_zValue);
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m_applet->update(); // re-render the background, now we've transformed the applet
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m_applet = 0;
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}
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QRectF Plasma::AppletHandle::boundingRect() const
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{
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return m_totalRect;
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}
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QPainterPath AppletHandle::shape() const
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{
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//when the containment changes the applet is resetted to 0
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if (m_applet) {
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QPainterPath path = PaintUtils::roundedRectangle(m_rect, 10);
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return path.united(m_applet->mapToParent(m_applet->shape()));
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} else {
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return QGraphicsItem::shape();
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}
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}
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QPainterPath handleRect(const QRectF &rect, int radius, bool onRight)
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{
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QPainterPath path;
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if (onRight) {
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// make the left side straight
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path.moveTo(rect.left(), rect.top()); // Top left
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path.lineTo(rect.right() - radius, rect.top()); // Top side
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path.quadTo(rect.right(), rect.top(), rect.right(), rect.top() + radius); // Top right corner
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path.lineTo(rect.right(), rect.bottom() - radius); // Right side
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path.quadTo(rect.right(), rect.bottom(), rect.right() - radius, rect.bottom()); // Bottom right corner
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path.lineTo(rect.left(), rect.bottom()); // Bottom side
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} else {
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// make the right side straight
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path.moveTo(QPointF(rect.left(), rect.top() + radius));
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path.quadTo(rect.left(), rect.top(), rect.left() + radius, rect.top()); // Top left corner
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path.lineTo(rect.right(), rect.top()); // Top side
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path.lineTo(rect.right(), rect.bottom()); // Right side
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path.lineTo(rect.left() + radius, rect.bottom()); // Bottom side
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path.quadTo(rect.left(), rect.bottom(), rect.left(), rect.bottom() - radius); // Bottom left corner
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}
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path.closeSubpath();
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return path;
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}
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void AppletHandle::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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painter->save();
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painter->setOpacity(m_opacity);
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painter->save();
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painter->setOpacity(m_opacity * 0.8);
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painter->setPen(Qt::NoPen);
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painter->setRenderHints(QPainter::Antialiasing);
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painter->translate(0.5, 0.5);
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QPainterPath path = handleRect(m_rect, 10, m_buttonsOnRight);
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painter->strokePath(path, m_gradientColor);
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int iconMargin = m_iconSize / 2;
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int minHeight = minimumHeight();
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qreal h = m_rect.height();
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if (h > minHeight * 1.25) {
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QLinearGradient g(m_rect.topLeft(), m_rect.bottomLeft());
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// where the top icons stop
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qreal firstStop = (m_iconSize + iconMargin) * 3 + iconMargin * 2;
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// now between that and where the close icon is
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firstStop = firstStop + (((h - (m_iconSize + iconMargin * 2)) - firstStop) * 0.7);
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// now the ratio of the height
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firstStop /= h;
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g.setColorAt(0.0, m_gradientColor.lighter());
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g.setColorAt(firstStop, Qt::transparent);
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g.setColorAt(1.0, m_gradientColor.lighter());
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painter->fillPath(path, g);
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} else {
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painter->fillPath(path, m_gradientColor.lighter());
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}
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painter->restore();
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//XXX this code is duplicated in the next function
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QPointF basePoint = m_rect.topLeft() + QPointF(HANDLE_MARGIN, iconMargin);
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QPointF step = QPointF(0, m_iconSize + iconMargin);
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QPointF separator = step + QPointF(0, iconMargin);
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//end duplicate code
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QPointF shiftC;
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QPointF shiftD;
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QPointF shiftR;
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QPointF shiftM;
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switch(m_pressedButton)
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{
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case ConfigureButton:
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shiftC = QPointF(2, 2);
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break;
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case RemoveButton:
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shiftD = QPointF(2, 2);
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break;
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case RotateButton:
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shiftR = QPointF(2, 2);
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break;
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case ResizeButton:
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shiftM = QPointF(2, 2);
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break;
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default:
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break;
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}
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painter->drawPixmap(basePoint + shiftM, SmallIcon("transform-scale")); //FIXME no transform-resize icon
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basePoint += step;
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painter->drawPixmap(basePoint + shiftR, SmallIcon("transform-rotate"));
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if (m_applet && m_applet->hasConfigurationInterface()) {
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basePoint += step;
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painter->drawPixmap(basePoint + shiftC, SmallIcon("configure"));
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}
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basePoint = m_rect.bottomLeft() + QPointF(HANDLE_MARGIN, 0) - step;
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painter->drawPixmap(basePoint + shiftD, SmallIcon("edit-delete"));
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painter->restore();
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}
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AppletHandle::ButtonType AppletHandle::mapToButton(const QPointF &point) const
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{
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int iconMargin = m_iconSize / 2;
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//XXX this code is duplicated in the prev. function
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QPointF basePoint = m_rect.topLeft() + QPointF(HANDLE_MARGIN, iconMargin);
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QPointF step = QPointF(0, m_iconSize + iconMargin);
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QPointF separator = step + QPointF(0, iconMargin);
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//end duplicate code
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QRectF activeArea = QRectF(basePoint, QSizeF(m_iconSize, m_iconSize));
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if (activeArea.contains(point)) {
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return ResizeButton;
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}
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activeArea.translate(step);
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if (activeArea.contains(point)) {
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return RotateButton;
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}
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if (m_applet && m_applet->hasConfigurationInterface()) {
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activeArea.translate(step);
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if (activeArea.contains(point)) {
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return ConfigureButton;
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}
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}
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activeArea.moveTop(m_rect.bottom() - activeArea.height() - iconMargin);
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if (activeArea.contains(point)) {
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return RemoveButton;
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}
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return MoveButton;
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//return m_applet->mapToParent(m_applet->shape()).contains(point) ? NoButton : MoveButton;
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}
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void AppletHandle::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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//containment recently switched?
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if (!m_applet) {
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QGraphicsItem::mousePressEvent(event);
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return;
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}
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if (m_pendingFade) {
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//m_pendingFade = false;
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return;
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}
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if (event->button() == Qt::LeftButton) {
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m_pressedButton = mapToButton(event->pos());
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//kDebug() << "button pressed:" << m_pressedButton;
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if (m_pressedButton != NoButton) {
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m_applet->raise();
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m_zValue = m_applet->zValue();
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setZValue(m_zValue);
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}
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if (m_pressedButton == MoveButton) {
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m_pos = pos();
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}
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event->accept();
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update();
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//set mousePos to the position in the applet, in screencoords, so it becomes easy
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//to reposition the toplevel view to the correct position.
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QPoint localpos = m_containment->view()->mapFromScene(m_applet->scenePos());
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m_mousePos = event->screenPos() - m_containment->view()->mapToGlobal(localpos);
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return;
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}
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QGraphicsItem::mousePressEvent(event);
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}
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bool AppletHandle::leaveCurrentView(const QPoint &pos) const
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{
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foreach (QWidget *widget, QApplication::topLevelWidgets()) {
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if (widget->geometry().contains(pos)) {
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//is this widget a plasma view, a different view then our current one,
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//AND not a dashboardview?
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Plasma::View *v = qobject_cast<Plasma::View *>(widget);
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if (v && v != m_applet->containment()->view()
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&& v != m_topview
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&& v->containment() != m_containment) {
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return true;
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}
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}
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}
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return false;
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}
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void AppletHandle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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//kDebug() << "button pressed:" << m_pressedButton << ", fade pending?" << m_pendingFade;
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if (m_pendingFade) {
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startFading(FadeOut, m_entryPos);
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m_pendingFade = false;
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}
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ButtonType releasedAtButton = mapToButton(event->pos());
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if (m_applet && event->button() == Qt::LeftButton) {
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switch (m_pressedButton) {
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case ResizeButton:
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case RotateButton: {
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if (m_scaleWidth > 0 && m_scaleHeight > 0) {
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QRectF rect(m_applet->boundingRect());
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const qreal newWidth = rect.width() * m_scaleWidth;
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const qreal newHeight = rect.height() * m_scaleHeight;
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m_applet->resetTransform();
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m_applet->resize(newWidth, newHeight);
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scale(1.0/m_scaleWidth, 1.0/m_scaleHeight);
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moveBy((rect.width() - newWidth) / 2, (rect.height() - newHeight) / 2);
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m_scaleWidth = m_scaleHeight = 0;
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}
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QRectF rect = QRectF(m_applet->pos(), m_applet->size());
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QPointF center = rect.center();
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m_angle += m_tempAngle;
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m_tempAngle = 0;
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QTransform matrix;
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matrix.translate(center.x(), center.y());
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matrix.rotateRadians(m_angle);
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matrix.translate(-center.x(), -center.y());
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setTransform(matrix);
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m_applet->update();
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break;
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}
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case ConfigureButton:
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//FIXME: Remove this call once the configuration management change was done
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if (m_pressedButton == releasedAtButton) {
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m_applet->showConfigurationInterface();
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}
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break;
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case RemoveButton:
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if (m_pressedButton == releasedAtButton) {
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forceDisappear();
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m_applet->destroy();
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}
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break;
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case MoveButton: {
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if (m_topview) {
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m_topview->hide();
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delete m_topview;
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m_topview = 0;
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m_applet->d->ghostView = 0;
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m_applet->update();
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}
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//find out if we were dropped on a panel or something
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if (leaveCurrentView(event->screenPos())) {
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startFading(FadeOut, m_entryPos);
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Plasma::View *v = Plasma::View::topLevelViewAt(event->screenPos());
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if (v && v != m_containment->view()) {
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Containment *c = v->containment();
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QPoint pos = v->mapFromGlobal(event->screenPos());
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//we actually have been dropped on another containment, so
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//move there: we have a screenpos, we need a scenepos
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//FIXME how reliable is this transform?
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switchContainment(c, v->mapToScene(pos));
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}
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} else {
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// test for containment change
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//kDebug() << "testing for containment change, sceneBoundingRect = " << m_containment->sceneBoundingRect();
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if (!m_containment->sceneBoundingRect().contains(m_applet->scenePos())) {
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// see which containment it belongs to
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Corona * corona = qobject_cast<Corona*>(scene());
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if (corona) {
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QList<Containment*> containments = corona->containments();
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for (int i = 0; i < containments.size(); ++i) {
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QPointF pos;
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QGraphicsView *v;
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v = containments[i]->view();
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if (v) {
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pos = v->mapToScene(v->mapFromGlobal(event->screenPos() - m_mousePos));
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if (containments[i]->sceneBoundingRect().contains(pos)) {
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//kDebug() << "new containment = " << containments[i];
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//kDebug() << "rect = " << containments[i]->sceneBoundingRect();
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// add the applet to the new containment and take it from the old one
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//kDebug() << "moving to other containment with position" << pos;;
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switchContainment(containments[i], pos);
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break;
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}
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}
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}
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}
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}
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}
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break;
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}
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default:
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break;
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}
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}
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m_pressedButton = NoButton;
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update();
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}
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qreal _k_distanceForPoint(QPointF point)
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{
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return std::sqrt(point.x()*point.x()+point.y()*point.y());
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}
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qreal _k_angleForPoints(const QPointF ¢er, const QPointF &pt1, const QPointF &pt2)
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{
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QPointF vec1 = pt1 - center;
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QPointF vec2 = pt2 - center;
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qreal alpha = std::atan2(vec1.y(), vec1.x());
|
|
qreal beta = std::atan2(vec2.y(), vec2.x());
|
|
|
|
return beta - alpha;
|
|
}
|
|
|
|
void AppletHandle::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
|
|
{
|
|
static const qreal snapAngle = M_PI_2 /* $i 3.14159 / 2.0 */;
|
|
|
|
if (!m_applet) {
|
|
QGraphicsItem::mouseMoveEvent(event);
|
|
return;
|
|
}
|
|
|
|
//Track how much the mouse has moved.
|
|
QPointF deltaScene = event->scenePos() - event->lastScenePos();
|
|
|
|
if (m_pressedButton == MoveButton) {
|
|
m_pos += deltaScene;
|
|
|
|
//Are we moving out of the current view?
|
|
bool toTopLevel = leaveCurrentView(event->screenPos());
|
|
|
|
if (!toTopLevel) {
|
|
setPos(m_pos);
|
|
if (m_topview) {
|
|
//We were on a toplevel view, but are moving back on the scene
|
|
//again. destroy the toplevel view:
|
|
m_topview->hide();
|
|
delete m_topview;
|
|
m_topview = 0;
|
|
m_applet->d->ghostView = 0;
|
|
}
|
|
} else {
|
|
//set the screenRect correctly. the screenRect contains the bounding
|
|
//rect of the applet in screen coordinates. m_mousePos contains the
|
|
//position of the mouse relative to the applet, in screen coords.
|
|
QRect screenRect = QRect(event->screenPos() - m_mousePos,
|
|
m_applet->screenRect().size());
|
|
|
|
//kDebug() << "screenRect = " << screenRect;
|
|
|
|
if (!m_topview) { //create a new toplevel view
|
|
m_topview = new View(m_containment, -1, 0);
|
|
|
|
m_topview->setTrackContainmentChanges(false);
|
|
m_topview->setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint
|
|
| Qt::WindowStaysOnTopHint);
|
|
m_topview->setWallpaperEnabled(false);
|
|
m_topview->resize(screenRect.size());
|
|
m_topview->setSceneRect(m_applet->sceneBoundingRect());
|
|
m_topview->centerOn(m_applet);
|
|
|
|
//We might have to scale the view, because we might be zoomed out.
|
|
qreal scale = screenRect.width() / m_applet->boundingRect().width();
|
|
m_topview->scale(scale, scale);
|
|
|
|
//Paint a mask based on the applets shape.
|
|
//TODO: I think it's nicer to have this functionality in Applet.
|
|
//TODO: When the corona tiled background is disabled, disable the
|
|
//mask when compositing is enabled.
|
|
//FIXME: the mask doesn't function correctly when zoomed out.
|
|
QBitmap bitmap(screenRect.size());
|
|
{
|
|
QPainter shapePainter;
|
|
shapePainter.begin(&bitmap);
|
|
shapePainter.fillRect(0, 0, screenRect.width(),
|
|
screenRect.height(),
|
|
Qt::white);
|
|
shapePainter.setBrush(Qt::black);
|
|
shapePainter.drawPath(m_applet->shape());
|
|
shapePainter.end();
|
|
}
|
|
m_topview->setMask(bitmap);
|
|
|
|
m_topview->show();
|
|
|
|
m_applet->d->ghostView = m_containment->view();
|
|
|
|
//TODO: non compositing users are screwed: masking looks terrible.
|
|
//Consider always enabling the applet background. Stuff like the analog clock
|
|
//looks absolutely terrible when masked, while the minor rounded corners of most
|
|
//themes should look quite ok. I said should, since shape() doesn't really
|
|
//function correctly right now for applets drawing standard backgrounds.
|
|
}
|
|
|
|
m_topview->setGeometry(screenRect);
|
|
}
|
|
|
|
} else if (m_pressedButton == RotateButton ||
|
|
m_pressedButton == ResizeButton) {
|
|
if (_k_distanceForPoint(deltaScene) <= 1.0) {
|
|
return;
|
|
}
|
|
|
|
QPointF pressPos = mapFromScene(event->buttonDownScenePos(Qt::LeftButton));
|
|
|
|
QRectF rect = QRectF(m_applet->pos(), m_applet->size());
|
|
QPointF center = rect.center();
|
|
|
|
if (m_pressedButton == RotateButton) {
|
|
m_tempAngle = _k_angleForPoints(center, pressPos, event->pos());
|
|
|
|
if (fabs(remainder(m_angle+m_tempAngle, snapAngle)) < 0.15) {
|
|
m_tempAngle = m_tempAngle - remainder(m_angle+m_tempAngle, snapAngle);
|
|
}
|
|
|
|
m_scaleWidth = m_scaleHeight = 1.0;
|
|
} else {
|
|
qreal w = m_applet->size().width();
|
|
qreal h = m_applet->size().height();
|
|
QSizeF min = m_applet->minimumSize();
|
|
QSizeF max = m_applet->maximumSize();
|
|
|
|
// If the applet doesn't have a minimum size, calculate based on a
|
|
// minimum content area size of 16x16
|
|
if (min.isEmpty()) {
|
|
min = m_applet->boundingRect().size() - m_applet->boundingRect().size();
|
|
min += QSizeF(16, 16);
|
|
}
|
|
|
|
bool ignoreAspectRatio = m_applet->aspectRatioMode() == Plasma::IgnoreAspectRatio;
|
|
|
|
if (QApplication::keyboardModifiers() & Qt::ControlModifier) {
|
|
ignoreAspectRatio = !ignoreAspectRatio;
|
|
}
|
|
|
|
if (ignoreAspectRatio) {
|
|
// free resizing
|
|
qreal newScaleWidth = 0;
|
|
qreal newScaleHeight = 0;
|
|
|
|
QPointF startDistance(pressPos - center);
|
|
QPointF currentDistance(event->pos() - center);
|
|
newScaleWidth = currentDistance.x() / startDistance.x();
|
|
newScaleHeight = currentDistance.y() / startDistance.y();
|
|
|
|
if (qAbs(w - (newScaleWidth * w)) <= KGlobalSettings::dndEventDelay()) {
|
|
newScaleWidth = 1.0;
|
|
}
|
|
if (qAbs(h - (newScaleHeight * h)) <= KGlobalSettings::dndEventDelay()) {
|
|
newScaleHeight = 1.0;
|
|
}
|
|
|
|
if (newScaleHeight * h < min.height()) {
|
|
m_scaleHeight = min.height() / h;
|
|
} else if (newScaleHeight * h > max.height()) {
|
|
m_scaleHeight = max.height() / h;
|
|
} else {
|
|
m_scaleHeight = newScaleHeight;
|
|
}
|
|
if (newScaleWidth * w < min.width()) {
|
|
m_scaleWidth = min.width() / w;
|
|
} else if (newScaleWidth * w > max.width()) {
|
|
m_scaleWidth = max.width() / w;
|
|
} else {
|
|
m_scaleWidth = newScaleWidth;
|
|
}
|
|
} else {
|
|
// maintain aspect ratio
|
|
qreal newScale = 0;
|
|
|
|
newScale = _k_distanceForPoint(event->pos()-center) / _k_distanceForPoint(pressPos-center);
|
|
if (qAbs(h - (newScale * h)) <= KGlobalSettings::dndEventDelay()) {
|
|
newScale = 1.0;
|
|
}
|
|
|
|
if (newScale * w < min.width() || newScale * h < min.height()) {
|
|
m_scaleWidth = m_scaleHeight = qMax(min.width() / w, min.height() / h);
|
|
} else if (newScale * w > max.width() && newScale * h > max.height()) {
|
|
m_scaleWidth = m_scaleHeight = qMin(max.width() / w, max.height() / h);
|
|
} else {
|
|
m_scaleHeight = m_scaleWidth = newScale;
|
|
}
|
|
}
|
|
}
|
|
|
|
QTransform matrix;
|
|
matrix.translate(center.x(), center.y());
|
|
matrix.rotateRadians(m_angle+m_tempAngle);
|
|
matrix.scale(m_scaleWidth, m_scaleHeight);
|
|
matrix.translate(-center.x(), -center.y());
|
|
setTransform(matrix);
|
|
} else {
|
|
QGraphicsItem::mouseMoveEvent(event);
|
|
}
|
|
}
|
|
|
|
|
|
//pos relative to scene
|
|
void AppletHandle::switchContainment(Containment *containment, const QPointF &pos)
|
|
{
|
|
if (containment->containmentType() != Containment::PanelContainment) {
|
|
//FIXME assuming everything else behaves like desktop?
|
|
kDebug() << "desktop";
|
|
m_containment = containment;
|
|
}
|
|
|
|
Applet *applet = m_applet;
|
|
m_applet = 0; //make sure we don't try to act on the applet again
|
|
applet->removeSceneEventFilter(this);
|
|
forceDisappear(); //takes care of event filter and killing handle
|
|
applet->disconnect(this); //make sure the applet doesn't tell us to do anything
|
|
applet->setZValue(m_zValue);
|
|
containment->addApplet(applet, containment->mapFromScene(pos));
|
|
update();
|
|
}
|
|
|
|
QVariant AppletHandle::itemChange(GraphicsItemChange change, const QVariant &value)
|
|
{
|
|
if (change == ItemPositionHasChanged && m_applet) {
|
|
m_applet->updateConstraints(Plasma::LocationConstraint);
|
|
}
|
|
return QGraphicsItem::itemChange(change, value);
|
|
}
|
|
|
|
void AppletHandle::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
Q_UNUSED(event);
|
|
//kDebug() << "hover enter";
|
|
|
|
//if a disappear was scheduled stop the timer
|
|
m_leaveTimer->stop();
|
|
|
|
// if we're already fading out, fade back in
|
|
if (m_animId != 0 && m_anim == FadeOut) {
|
|
startFading(FadeIn, m_entryPos);
|
|
} else {
|
|
//schedule appear
|
|
m_hoverTimer->start();
|
|
}
|
|
}
|
|
|
|
void AppletHandle::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
Q_UNUSED(event);
|
|
m_leaveTimer->stop();
|
|
}
|
|
|
|
void AppletHandle::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
Q_UNUSED(event);
|
|
m_hoverTimer->stop();
|
|
|
|
if (m_pressedButton != NoButton) {
|
|
m_pendingFade = true;
|
|
} else {
|
|
//wait a moment to hide the handle in order to recheck the mouse position
|
|
m_leaveTimer->start();
|
|
}
|
|
}
|
|
|
|
bool AppletHandle::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
|
|
{
|
|
if (watched == m_applet && event->type() == QEvent::GraphicsSceneHoverLeave) {
|
|
hoverLeaveEvent(static_cast<QGraphicsSceneHoverEvent*>(event));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void AppletHandle::fadeAnimation(qreal progress)
|
|
{
|
|
qreal endOpacity = (m_anim == FadeIn) ? 1.0 : 0.0;
|
|
m_opacity += (endOpacity - m_opacity) * progress;
|
|
//kDebug() << "progress" << progress << "m_opacity" << m_opacity << endOpacity;
|
|
if (progress >= 1.0) {
|
|
m_animId = 0;
|
|
}
|
|
if (progress >= 1.0 && m_anim == FadeOut) {
|
|
emit disappearDone(this);
|
|
}
|
|
|
|
update();
|
|
}
|
|
|
|
void AppletHandle::fadeIn()
|
|
{
|
|
startFading(FadeIn, m_entryPos);
|
|
}
|
|
|
|
void AppletHandle::leaveTimeout()
|
|
{
|
|
startFading(FadeOut, m_entryPos);
|
|
}
|
|
|
|
void AppletHandle::appletDestroyed()
|
|
{
|
|
m_applet = 0;
|
|
}
|
|
|
|
void AppletHandle::appletResized()
|
|
{
|
|
prepareGeometryChange();
|
|
calculateSize();
|
|
update();
|
|
}
|
|
|
|
void AppletHandle::startFading(FadeType anim, const QPointF &hoverPos)
|
|
{
|
|
if (m_animId != 0) {
|
|
Animator::self()->stopCustomAnimation(m_animId);
|
|
}
|
|
|
|
m_hoverTimer->stop();
|
|
m_leaveTimer->stop();
|
|
|
|
m_entryPos = hoverPos;
|
|
qreal time = 250;
|
|
|
|
if (!m_applet || (anim == FadeOut && m_hoverTimer->isActive())) {
|
|
// fading out before we've started fading in
|
|
fadeAnimation(1.0);
|
|
return;
|
|
}
|
|
|
|
if (anim == FadeIn) {
|
|
//kDebug() << m_entryPos.x() << m_applet->pos().x();
|
|
prepareGeometryChange();
|
|
bool wasOnRight = m_buttonsOnRight;
|
|
m_buttonsOnRight = m_entryPos.x() > (m_applet->size().width() / 2);
|
|
calculateSize();
|
|
QPolygonF region = mapToParent(m_rect).intersected(parentWidget()->boundingRect());
|
|
//kDebug() << region << m_rect << mapToParent(m_rect) << parentWidget()->boundingRect();
|
|
if (region != mapToParent(m_rect)) {
|
|
// switch sides
|
|
//kDebug() << "switch sides";
|
|
m_buttonsOnRight = !m_buttonsOnRight;
|
|
calculateSize();
|
|
QPolygonF region2 = mapToParent(m_rect).intersected(parentWidget()->boundingRect());
|
|
if (region2 != mapToParent(m_rect)) {
|
|
// ok, both sides failed to be perfect... which one is more perfect?
|
|
QRectF f1 = region.boundingRect();
|
|
QRectF f2 = region2.boundingRect();
|
|
//kDebug() << "still not a perfect world" << f2.width() << f2.height() << f1.width() << f1.height();
|
|
if ((f2.width() * f2.height()) < (f1.width() * f1.height())) {
|
|
//kDebug() << "we did better the first time";
|
|
m_buttonsOnRight = !m_buttonsOnRight;
|
|
calculateSize();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (wasOnRight != m_buttonsOnRight && m_anim == FadeIn && anim == FadeIn && m_opacity <= 1) {
|
|
m_opacity = 0.0;
|
|
}
|
|
|
|
time *= 1.0 - m_opacity;
|
|
} else {
|
|
time *= m_opacity;
|
|
}
|
|
|
|
m_anim = anim;
|
|
m_animId = Animator::self()->customAnimation(40, (int)time, Animator::EaseInOutCurve, this, "fadeAnimation");
|
|
}
|
|
|
|
void AppletHandle::forceDisappear()
|
|
{
|
|
setAcceptsHoverEvents(false);
|
|
startFading(FadeOut, m_entryPos);
|
|
}
|
|
|
|
int AppletHandle::minimumHeight()
|
|
{
|
|
int iconMargin = m_iconSize / 2;
|
|
int requiredHeight = iconMargin + //first margin
|
|
(m_iconSize + iconMargin ) * 4 + //XXX remember to update this if the number of buttons changes
|
|
iconMargin ; //blank space before the close button
|
|
|
|
if (m_applet && m_applet->hasConfigurationInterface()) {
|
|
requiredHeight += (m_iconSize + iconMargin );
|
|
}
|
|
|
|
return requiredHeight;
|
|
}
|
|
|
|
void AppletHandle::calculateSize()
|
|
{
|
|
KIconLoader *iconLoader = KIconLoader::global();
|
|
//m_iconSize = iconLoader->currentSize(KIconLoader::Small); //does not work with double sized icon
|
|
m_iconSize = iconLoader->loadIcon("transform-scale", KIconLoader::Small).width(); //workaround
|
|
|
|
int handleHeight = minimumHeight();
|
|
int handleWidth = m_iconSize + 2 * HANDLE_MARGIN;
|
|
int top = m_applet->contentsRect().top();
|
|
|
|
if (handleHeight > m_applet->contentsRect().height()) {
|
|
//center the handle if it is higher than the applet
|
|
top += (m_applet->contentsRect().height() - handleHeight) / 2.0;
|
|
} else {
|
|
handleHeight = m_applet->contentsRect().height();
|
|
}
|
|
|
|
if (m_buttonsOnRight) {
|
|
//put the rect on the right of the applet
|
|
m_rect = QRectF(m_applet->size().width(), top, handleWidth, handleHeight);
|
|
} else {
|
|
//put the rect on the left of the applet
|
|
m_rect = QRectF(-handleWidth, top, handleWidth, handleHeight);
|
|
}
|
|
|
|
m_rect = m_applet->mapToParent(m_rect).boundingRect();
|
|
m_totalRect = m_rect.united(m_applet->geometry());
|
|
}
|
|
|
|
} // Plasma Namespace
|
|
|
|
#include "applethandle_p.moc"
|
|
|