985 lines
33 KiB
C++
985 lines
33 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 <QtGui/QMenu>
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#include <kcolorscheme.h>
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#include <kglobalsettings.h>
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#include <kicon.h>
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#include <kiconloader.h>
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#include <kwindowsystem.h>
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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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#include "framesvg.h"
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namespace Plasma
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{
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qreal _k_distanceForPoint(QPointF point);
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qreal _k_pointAngle(QPointF in);
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QPointF _k_rotatePoint(QPointF in, qreal rotateAngle);
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AppletHandle::AppletHandle(Containment *parent, Applet *applet, const QPointF &hoverPos)
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: QGraphicsObject(applet),
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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(KIconLoader::SizeSmall),
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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_backgroundBuffer(0),
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m_currentView(applet->view()),
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m_entryPos(hoverPos),
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m_buttonsOnRight(false),
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m_pendingFade(false)
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{
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setFlags(flags() | QGraphicsItem::ItemStacksBehindParent);
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KColorScheme colorScheme(QPalette::Active, KColorScheme::View,
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Theme::defaultTheme()->colorScheme());
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m_gradientColor = colorScheme.background(KColorScheme::NormalBackground).color();
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m_originalGeom = m_applet->geometry();
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m_originalTransform = m_applet->transform();
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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(hoverTimeout()));
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connect(m_leaveTimer, SIGNAL(timeout()), this, SLOT(leaveTimeout()));
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connect(m_applet, SIGNAL(appletDestroyed(Plasma::Applet*)), this, SLOT(appletDestroyed()));
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setAcceptsHoverEvents(true);
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m_hoverTimer->start();
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//icons
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m_configureIcons = new Svg(this);
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m_configureIcons->setImagePath("widgets/configuration-icons");
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m_configureIcons->setContainsMultipleImages(true);
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m_background = new FrameSvg(this);
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m_background->setImagePath("widgets/background");
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m_applet->installSceneEventFilter(this);
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}
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AppletHandle::~AppletHandle()
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{
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detachApplet();
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delete m_backgroundBuffer;
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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(hoverTimeout()));
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disconnect(m_leaveTimer, SIGNAL(timeout()), this, SLOT(leaveTimeout()));
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m_applet->disconnect(this);
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if (m_applet->geometry() != m_originalGeom || m_applet->transform() != m_originalTransform) {
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emit m_applet->appletTransformedByUser();
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}
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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 reset to 0
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if (m_applet) {
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QPainterPath path = PaintUtils::roundedRectangle(m_decorationRect, 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(),
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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(),
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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(),
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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(),
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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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//kDebug() << m_opacity << m_anim << FadeOut;
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if (qFuzzyCompare(m_opacity + 1.0, 1.0)) {
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if (m_anim == FadeOut) {
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//kDebug() << "WOOOOOOOOO";
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QTimer::singleShot(0, this, SLOT(emitDisappear()));
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}
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return;
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}
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qreal translation;
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if (m_buttonsOnRight) {
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//kDebug() << "translating by" << m_opacity
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// << (-(1 - m_opacity) * m_rect.width()) << m_rect.width();
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translation = -(1 - m_opacity) * m_rect.width();
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} else {
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translation = (1 - m_opacity) * m_rect.width();
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}
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painter->translate(translation, 0);
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painter->setPen(Qt::NoPen);
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painter->setRenderHints(QPainter::Antialiasing);
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int iconMargin = m_iconSize / 2;
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const QSize pixmapSize(int(m_decorationRect.width()),
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int(m_decorationRect.height()) + m_iconSize * 5 + 1);
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const QSize iconSize(KIconLoader::SizeSmall, KIconLoader::SizeSmall);
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//regenerate our buffer?
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if (m_animId > 0 || !m_backgroundBuffer || m_backgroundBuffer->size() != pixmapSize) {
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QColor transparencyColor = Qt::black;
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transparencyColor.setAlphaF(qMin(m_opacity, qreal(0.99)));
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QLinearGradient g(QPoint(0, 0), QPoint(m_decorationRect.width(), 0));
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//fading out panel
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if (m_rect.height() > qreal(minimumHeight()) * 1.25) {
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if (m_buttonsOnRight) {
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qreal opaquePoint =
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(m_background->marginSize(LeftMargin) - translation) / m_decorationRect.width();
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//kDebug() << "opaquePoint" << opaquePoint
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// << m_background->marginSize(LeftMargin) << m_decorationRect.width();
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g.setColorAt(0.0, Qt::transparent);
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g.setColorAt(qMax(0.0, opaquePoint - 0.05), Qt::transparent);
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g.setColorAt(opaquePoint, transparencyColor);
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g.setColorAt(1.0, transparencyColor);
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} else {
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qreal opaquePoint =
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1 - ((m_background->marginSize(RightMargin) + translation) / m_decorationRect.width());
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g.setColorAt(1.0, Qt::transparent);
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g.setColorAt(opaquePoint, Qt::transparent);
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g.setColorAt(qMax(0.0, opaquePoint - 0.05), transparencyColor);
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g.setColorAt(0.0, transparencyColor);
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}
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//complete panel
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} else {
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g.setColorAt(0.0, transparencyColor);
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}
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m_background->resizeFrame(m_decorationRect.size());
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if (!m_backgroundBuffer || m_backgroundBuffer->size() != pixmapSize) {
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delete m_backgroundBuffer;
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m_backgroundBuffer = new QPixmap(pixmapSize);
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}
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m_backgroundBuffer->fill(Qt::transparent);
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QPainter buffPainter(m_backgroundBuffer);
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m_background->paintFrame(&buffPainter);
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//+1 because otherwise due to rounding errors when rotated could appear one pixel
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//of the icon at the border of the applet
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//QRectF iconRect(QPointF(pixmapSize.width() - m_iconSize + 1, m_iconSize), iconSize);
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QRectF iconRect(QPointF(0, m_decorationRect.height() + 1), iconSize);
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if (m_buttonsOnRight) {
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iconRect.moveLeft(
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pixmapSize.width() - m_iconSize - m_background->marginSize(LeftMargin));
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m_configureIcons->paint(&buffPainter, iconRect, "size-diagonal-tr2bl");
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} else {
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iconRect.moveLeft(m_background->marginSize(RightMargin));
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m_configureIcons->paint(&buffPainter, iconRect, "size-diagonal-tl2br");
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}
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iconRect.translate(0, m_iconSize);
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m_configureIcons->paint(&buffPainter, iconRect, "rotate");
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if (m_applet && m_applet->hasConfigurationInterface()) {
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iconRect.translate(0, m_iconSize);
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m_configureIcons->paint(&buffPainter, iconRect, "configure");
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}
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if (m_applet && m_applet->hasValidAssociatedApplication()) {
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iconRect.translate(0, m_iconSize);
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m_configureIcons->paint(&buffPainter, iconRect, "maximize");
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}
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iconRect.translate(0, m_iconSize);
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m_configureIcons->paint(&buffPainter, iconRect, "close");
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buffPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
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//blend the background
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buffPainter.fillRect(m_backgroundBuffer->rect(), g);
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//blend the icons
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//buffPainter.fillRect(QRect(QPoint((int)m_decorationRect.width(), 0), QSize(m_iconSize + 1,
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// (int)m_decorationRect.height())), transparencyColor);
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}
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painter->drawPixmap(m_decorationRect.toRect(), *m_backgroundBuffer,
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QRect(QPoint(0, 0), m_decorationRect.size().toSize()));
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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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QPointF shiftMx;
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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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case MaximizeButton:
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shiftMx = 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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QRectF sourceIconRect(QPointF(0, m_decorationRect.height() + 1), iconSize);
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if (m_buttonsOnRight) {
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sourceIconRect.moveLeft(
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pixmapSize.width() - m_iconSize - m_background->marginSize(LeftMargin));
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} else {
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sourceIconRect.moveLeft(m_background->marginSize(RightMargin));
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}
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if (m_applet && m_applet->aspectRatioMode() != FixedSize) {
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//resize
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painter->drawPixmap(
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QRectF(basePoint + shiftM, iconSize), *m_backgroundBuffer, sourceIconRect);
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basePoint += step;
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}
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//rotate
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sourceIconRect.translate(0, m_iconSize);
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painter->drawPixmap(QRectF(basePoint + shiftR, iconSize), *m_backgroundBuffer, sourceIconRect);
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//configure
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if (m_applet && m_applet->hasConfigurationInterface()) {
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basePoint += step;
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sourceIconRect.translate(0, m_iconSize);
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painter->drawPixmap(
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QRectF(basePoint + shiftC, iconSize), *m_backgroundBuffer, sourceIconRect);
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}
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//maximize
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if (m_applet && m_applet->hasValidAssociatedApplication()) {
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basePoint += step;
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sourceIconRect.translate(0, m_iconSize);
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painter->drawPixmap(
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QRectF(basePoint + shiftMx, iconSize), *m_backgroundBuffer, sourceIconRect);
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}
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//close
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basePoint = m_rect.bottomLeft() + QPointF(HANDLE_MARGIN, 0) - step;
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sourceIconRect.translate(0, m_iconSize);
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painter->drawPixmap(QRectF(basePoint + shiftD, iconSize), *m_backgroundBuffer, sourceIconRect);
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}
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void AppletHandle::emitDisappear()
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{
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emit disappearDone(this);
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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 (m_applet && m_applet->aspectRatioMode() != FixedSize) {
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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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}
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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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if (m_applet && m_applet->hasValidAssociatedApplication()) {
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activeArea.translate(step);
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if (activeArea.contains(point)) {
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return MaximizeButton;
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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 == ResizeButton || m_pressedButton == RotateButton) {
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m_origAppletCenter = m_applet->geometry().center();
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m_origAppletSize = QPointF(m_applet->size().width(), m_applet->size().height());
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// resize
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if (m_buttonsOnRight) {
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m_resizeStaticPoint = mapToScene(m_applet->geometry().bottomLeft());
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} else {
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m_resizeStaticPoint = mapToScene(m_applet->geometry().bottomRight());
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}
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m_resizeGrabPoint = event->scenePos();
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// rotate
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m_rotateAngleOffset = m_angle - _k_pointAngle(event->scenePos() - m_origAppletCenter);
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}
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event->accept();
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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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if (m_currentView && m_applet) {
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QPoint localpos = m_currentView->mapFromScene(m_applet->scenePos());
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m_mousePos = event->screenPos() - m_currentView->mapToGlobal(localpos);
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}
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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_currentView && 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());
|
|
|
|
if (m_applet && event->button() == Qt::LeftButton) {
|
|
switch (m_pressedButton) {
|
|
case ConfigureButton:
|
|
//FIXME: Remove this call once the configuration management change was done
|
|
if (m_pressedButton == releasedAtButton) {
|
|
m_applet->showConfigurationInterface();
|
|
}
|
|
break;
|
|
case RemoveButton:
|
|
if (m_pressedButton == releasedAtButton) {
|
|
forceDisappear();
|
|
m_applet->destroy();
|
|
}
|
|
break;
|
|
case MoveButton:
|
|
{
|
|
// test for containment change
|
|
//kDebug() << "testing for containment change, sceneBoundingRect = "
|
|
// << m_containment->sceneBoundingRect();
|
|
if (!m_containment->sceneBoundingRect().contains(m_applet->scenePos())) {
|
|
// see which containment it belongs to
|
|
Corona * corona = qobject_cast<Corona*>(scene());
|
|
if (corona) {
|
|
QList<Containment*> containments = corona->containments();
|
|
for (int i = 0; i < containments.size(); ++i) {
|
|
QPointF pos;
|
|
QGraphicsView *v;
|
|
v = containments[i]->view();
|
|
if (v) {
|
|
pos = v->mapToScene(
|
|
v->mapFromGlobal(event->screenPos() - m_mousePos));
|
|
|
|
if (containments[i]->sceneBoundingRect().contains(pos)) {
|
|
//kDebug() << "new containment = " << containments[i];
|
|
//kDebug() << "rect = " << containments[i]->sceneBoundingRect();
|
|
// add the applet to the new containment and take it from the old one
|
|
//kDebug() << "moving to other containment with position" << pos;;
|
|
switchContainment(containments[i], pos);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case MaximizeButton:
|
|
if (m_applet) {
|
|
m_applet->runAssociatedApplication();
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
m_pressedButton = NoButton;
|
|
update();
|
|
}
|
|
|
|
qreal _k_distanceForPoint(QPointF point)
|
|
{
|
|
return std::sqrt(point.x() * point.x() + point.y() * point.y());
|
|
}
|
|
|
|
qreal _k_pointAngle(QPointF in)
|
|
{
|
|
qreal r = sqrt(in.x()*in.x() + in.y()*in.y());
|
|
qreal cosine = in.x()/r;
|
|
qreal sine = in.y()/r;
|
|
|
|
if (sine >= 0) {
|
|
return acos(cosine);
|
|
} else {
|
|
return -acos(cosine);
|
|
}
|
|
}
|
|
|
|
QPointF _k_rotatePoint(QPointF in, qreal rotateAngle)
|
|
{
|
|
qreal r = sqrt(in.x()*in.x() + in.y()*in.y());
|
|
qreal cosine = in.x()/r;
|
|
qreal sine = in.y()/r;
|
|
|
|
qreal angle;
|
|
if (sine>=0) {
|
|
angle = acos(cosine);
|
|
} else {
|
|
angle = -acos(cosine);
|
|
}
|
|
|
|
qreal newAngle = angle + rotateAngle;
|
|
return QPointF(r*cos(newAngle), r*sin(newAngle));
|
|
}
|
|
|
|
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) {
|
|
if (leaveCurrentView(event->screenPos())) {
|
|
Plasma::View *v = Plasma::View::topLevelViewAt(event->screenPos());
|
|
if (v && v != m_currentView) {
|
|
Containment *c = v->containment();
|
|
QPoint pos = v->mapFromGlobal(event->screenPos());
|
|
//we actually have been dropped on another containment, so
|
|
//move there: we have a screenpos, we need a scenepos
|
|
//FIXME how reliable is this transform?
|
|
switchContainment(c, v->mapToScene(pos));
|
|
}
|
|
}
|
|
|
|
if (m_applet) {
|
|
QPointF mappedPoint = transform().map(QPointF(deltaScene.x(), deltaScene.y()));
|
|
m_applet->moveBy(mappedPoint.x(), mappedPoint.y());
|
|
}
|
|
} else if (m_pressedButton == ResizeButton || m_pressedButton == RotateButton) {
|
|
QPointF cursorPoint = event->scenePos();
|
|
|
|
// the code below will adjust these based on the type of operation
|
|
QPointF newSize;
|
|
QPointF newCenter;
|
|
qreal newAngle;
|
|
|
|
// get size limits
|
|
QSizeF min = m_applet->minimumSize();
|
|
QSizeF max = m_applet->maximumSize();
|
|
|
|
if (min.isEmpty()) {
|
|
min = m_applet->effectiveSizeHint(Qt::MinimumSize);
|
|
}
|
|
|
|
if (max.isEmpty()) {
|
|
max = m_applet->effectiveSizeHint(Qt::MaximumSize);
|
|
}
|
|
|
|
// If the applet doesn't have a minimum size, calculate based on a
|
|
// minimum content area size of 16x16 (KIconLoader::SizeSmall)
|
|
if (min.isEmpty()) {
|
|
min = m_applet->boundingRect().size() - m_applet->contentsRect().size();
|
|
min = QSizeF(KIconLoader::SizeSmall, KIconLoader::SizeSmall);
|
|
}
|
|
|
|
if (m_pressedButton == RotateButton) {
|
|
newSize = m_origAppletSize;
|
|
newCenter = m_origAppletCenter;
|
|
|
|
QPointF centerRelativePoint = cursorPoint - m_origAppletCenter;
|
|
if (_k_distanceForPoint(centerRelativePoint) < 10) {
|
|
newAngle = m_angle;
|
|
} else {
|
|
qreal cursorAngle = _k_pointAngle(centerRelativePoint);
|
|
newAngle = m_rotateAngleOffset + cursorAngle;
|
|
if (fabs(remainder(newAngle, snapAngle)) < 0.15) {
|
|
newAngle = newAngle - remainder(newAngle, snapAngle);
|
|
}
|
|
}
|
|
} else {
|
|
// un-rotate screen points so we can read differences of coordinates
|
|
QPointF rStaticPoint = _k_rotatePoint(m_resizeStaticPoint, -m_angle);
|
|
QPointF rCursorPoint = _k_rotatePoint(cursorPoint, -m_angle);
|
|
QPointF rGrabPoint = _k_rotatePoint(m_resizeGrabPoint, -m_angle);
|
|
|
|
if (m_buttonsOnRight) {
|
|
newSize = m_origAppletSize + QPointF(rCursorPoint.x() - rGrabPoint.x(), rGrabPoint.y() - rCursorPoint.y());
|
|
} else {
|
|
newSize = m_origAppletSize + QPointF(rGrabPoint.x() - rCursorPoint.x(), rGrabPoint.y() - rCursorPoint.y());
|
|
}
|
|
|
|
// if preserving aspect ratio, project the calculated size point to the line
|
|
// theough the origin and the original size point
|
|
if ((m_applet->aspectRatioMode() != Plasma::IgnoreAspectRatio &&
|
|
!(event->modifiers() & Qt::ControlModifier)) ||
|
|
(m_applet->aspectRatioMode() == Plasma::IgnoreAspectRatio &&
|
|
(event->modifiers() & Qt::ControlModifier))) {
|
|
qreal ox = m_origAppletSize.x();
|
|
qreal oy = m_origAppletSize.y();
|
|
qreal sx = newSize.x();
|
|
qreal sy = newSize.y();
|
|
|
|
qreal x = ox*(sx*ox+sy*oy)/(ox*ox+oy*oy);
|
|
qreal y = (oy/ox)*x;
|
|
newSize = QPointF(x, y);
|
|
|
|
// limit size, preserve ratio
|
|
newSize.rx() = qMin(max.width(), qMax(min.width(), newSize.x()));
|
|
newSize.ry() = newSize.x()*(oy/ox);
|
|
newSize.ry() = qMin(max.height(), qMax(min.height(), newSize.y()));
|
|
newSize.rx() = newSize.y()/(oy/ox);
|
|
} else {
|
|
// limit size
|
|
newSize.rx() = qMin(max.width(), qMax(min.width(), newSize.x()));
|
|
newSize.ry() = qMin(max.height(), qMax(min.height(), newSize.y()));
|
|
}
|
|
|
|
if (m_buttonsOnRight) {
|
|
newCenter = (QPointF(m_originalGeom.size().width(), m_originalGeom.size().height())/2 - newSize/2);
|
|
newCenter = QPointF(0, newCenter.y()*2);
|
|
} else {
|
|
newCenter = (QPointF(m_originalGeom.size().width(), m_originalGeom.size().height())/2 - newSize/2)*2;
|
|
}
|
|
|
|
|
|
|
|
newAngle = m_angle;
|
|
}
|
|
|
|
if (m_pressedButton == ResizeButton) {
|
|
// set applet size
|
|
kDebug() << newCenter << m_originalGeom.topLeft() << newSize;
|
|
QPointF newPos = m_originalGeom.topLeft() + _k_rotatePoint(newCenter, m_angle);
|
|
m_applet->setPos(newPos);
|
|
// m_applet->moveBy(newCenter.x(), newCenter.y());
|
|
m_applet->resize(newSize.x(), newSize.y());
|
|
} else {
|
|
// set applet handle rotation - rotate around center of applet
|
|
QRectF appletGeomLocal = m_originalGeom;
|
|
QTransform at;
|
|
at.translate(appletGeomLocal.width()/2, appletGeomLocal.height()/2);
|
|
at.rotateRadians(newAngle);
|
|
at.translate(-appletGeomLocal.width()/2, -appletGeomLocal.height()/2);
|
|
m_applet->setTransform(at);
|
|
}
|
|
|
|
m_angle = newAngle;
|
|
} else {
|
|
QGraphicsItem::mouseMoveEvent(event);
|
|
}
|
|
}
|
|
|
|
//pos relative to scene
|
|
void AppletHandle::switchContainment(Containment *containment, const QPointF &pos)
|
|
{
|
|
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), false);
|
|
update();
|
|
}
|
|
|
|
void AppletHandle::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
Q_UNUSED(event);
|
|
//kDebug() << "hover enter";
|
|
|
|
//if a disappear was scheduled stop the timer
|
|
if (m_leaveTimer->isActive()) {
|
|
m_leaveTimer->stop();
|
|
}
|
|
// if we're already fading out, fade back in
|
|
else if (m_animId != 0 && m_anim == FadeOut) {
|
|
startFading(FadeIn, m_entryPos, true);
|
|
}
|
|
}
|
|
|
|
void AppletHandle::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
hoverEnterEvent(event);
|
|
}
|
|
|
|
void AppletHandle::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
{
|
|
Q_UNUSED(event);
|
|
|
|
foreach (QWidget *widget, QApplication::topLevelWidgets()) {
|
|
QMenu *menu = qobject_cast<QMenu*>(widget);
|
|
if (menu && menu->isVisible()) {
|
|
connect(menu, SIGNAL(aboutToHide()), this, SLOT(leaveTimeout()));
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
// if we haven't even showed up yet, remove the handle
|
|
if (m_hoverTimer->isActive()) {
|
|
m_hoverTimer->stop();
|
|
QTimer::singleShot(0, this, SLOT(emitDisappear()));
|
|
} else 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 : -1.0;
|
|
if (m_anim == FadeIn) {
|
|
m_opacity = progress;
|
|
} else {
|
|
m_opacity = 1 - progress;
|
|
}
|
|
|
|
//kDebug() << "progress" << progress << "m_opacity" << m_opacity << m_anim << "(" << FadeIn << ")";
|
|
if (qFuzzyCompare(progress, qreal(1.0))) {
|
|
m_animId = 0;
|
|
delete m_backgroundBuffer;
|
|
m_backgroundBuffer = 0;
|
|
}
|
|
|
|
update();
|
|
}
|
|
|
|
void AppletHandle::hoverTimeout()
|
|
{
|
|
startFading(FadeIn, m_entryPos);
|
|
}
|
|
|
|
void AppletHandle::leaveTimeout()
|
|
{
|
|
if (!isUnderMouse()) {
|
|
startFading(FadeOut, m_entryPos);
|
|
}
|
|
}
|
|
|
|
void AppletHandle::appletDestroyed()
|
|
{
|
|
m_applet = 0;
|
|
}
|
|
|
|
void AppletHandle::appletResized()
|
|
{
|
|
prepareGeometryChange();
|
|
calculateSize();
|
|
update();
|
|
}
|
|
|
|
void AppletHandle::setHoverPos(const QPointF &hoverPos)
|
|
{
|
|
m_entryPos = hoverPos;
|
|
}
|
|
|
|
void AppletHandle::startFading(FadeType anim, const QPointF &hoverPos, bool preserveSide)
|
|
{
|
|
if (m_animId != 0) {
|
|
Animator::self()->stopCustomAnimation(m_animId);
|
|
}
|
|
|
|
m_entryPos = hoverPos;
|
|
qreal time = 100;
|
|
|
|
if (!m_applet) {
|
|
m_anim = FadeOut;
|
|
fadeAnimation(1.0);
|
|
return;
|
|
}
|
|
|
|
if (anim == FadeIn) {
|
|
//kDebug() << m_entryPos.x() << m_applet->pos().x();
|
|
prepareGeometryChange();
|
|
bool wasOnRight = m_buttonsOnRight;
|
|
if (!preserveSide) {
|
|
m_buttonsOnRight = m_entryPos.x() > (m_applet->size().width() / 2);
|
|
}
|
|
calculateSize();
|
|
QPolygonF region = m_applet->mapToParent(m_rect).intersected(m_applet->parentWidget()->boundingRect());
|
|
//kDebug() << region << m_rect << mapToParent(m_rect) << containmnet->boundingRect();
|
|
if (region != m_applet->mapToParent(m_rect)) {
|
|
// switch sides
|
|
//kDebug() << "switch sides";
|
|
m_buttonsOnRight = !m_buttonsOnRight;
|
|
calculateSize();
|
|
QPolygonF region2 = m_applet->mapToParent(m_rect).intersected(m_applet->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;
|
|
//kDebug() << "animating for " << time << "ms";
|
|
m_animId = Animator::self()->customAnimation(80 * (time / 1000.0), (int)time,
|
|
Animator::EaseInCurve, 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 = qMax(minimumHeight(), int(m_applet->contentsRect().height() * 0.8));
|
|
int handleWidth = m_iconSize + 2 * HANDLE_MARGIN;
|
|
int top =
|
|
m_applet->contentsRect().top() + (m_applet->contentsRect().height() - handleHeight) / 2.0;
|
|
|
|
qreal marginLeft, marginTop, marginRight, marginBottom;
|
|
m_background->getMargins(marginLeft, marginTop, marginRight, marginBottom);
|
|
|
|
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);
|
|
}
|
|
|
|
if (m_applet->contentsRect().height() > qreal(minimumHeight()) * 1.25) {
|
|
int addedMargin = marginLeft / 2;
|
|
|
|
// now we check to see if the shape is smaller than the contents,
|
|
// and that the shape is not just the bounding rect; in those cases
|
|
// we have a shaped guy and we draw a full panel;
|
|
// TODO: allow applets to mark when they have translucent areas and
|
|
// should therefore skip this test?
|
|
if (!m_applet->shape().contains(m_applet->contentsRect())) {
|
|
QPainterPath p;
|
|
p.addRect(m_applet->boundingRect());
|
|
if (m_applet->shape() != p) {
|
|
addedMargin = m_applet->contentsRect().width() / 2;
|
|
}
|
|
}
|
|
|
|
if (m_buttonsOnRight) {
|
|
marginLeft += addedMargin;
|
|
} else {
|
|
marginRight += addedMargin;
|
|
}
|
|
}
|
|
|
|
//m_rect = m_applet->mapToParent(m_rect).boundingRect();
|
|
m_decorationRect = m_rect.adjusted(-marginLeft, -marginTop, marginRight, marginBottom);
|
|
m_totalRect = m_decorationRect.united(m_applet->geometry());
|
|
}
|
|
|
|
} // Plasma Namespace
|
|
|
|
#include "applethandle_p.moc"
|
|
|