311 lines
10 KiB
C++
311 lines
10 KiB
C++
/*
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* Copyright 2009 Marco Martin <notmart@gmail.com>
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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 "focusindicator_p.h"
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#include <QGraphicsSceneResizeEvent>
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#include <QPainter>
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#include <QStringBuilder>
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#include <QStyleOptionGraphicsItem>
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#include <plasma/theme.h>
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#include <plasma/framesvg.h>
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#include <plasma/animator.h>
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namespace Plasma
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{
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FocusIndicator::FocusIndicator(QGraphicsWidget *parent, const QString &widget)
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: QGraphicsWidget(parent),
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m_parent(parent),
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m_background(new Plasma::FrameSvg(this)),
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m_isUnderMouse(false)
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{
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m_background->setImagePath(widget);
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init(parent);
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}
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FocusIndicator::FocusIndicator(QGraphicsWidget *parent, FrameSvg *svg)
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: QGraphicsWidget(parent),
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m_parent(parent),
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m_background(svg),
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m_isUnderMouse(false)
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{
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init(parent);
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}
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void FocusIndicator::init(QGraphicsWidget *parent)
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{
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setVisible(!Theme::defaultTheme()->useNativeWidgetStyle());
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setFlag(QGraphicsItem::ItemStacksBehindParent);
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setAcceptsHoverEvents(true);
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m_background->setCacheAllRenderedFrames(true);
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m_fade = Animator::create(Animator::FadeAnimation, this);
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m_fade->setTargetWidget(this);
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m_fade->setProperty("startOpacity", 0.0);
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m_fade->setProperty("targetOpacity", 1.0);
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m_hoverAnimation = Animator::create(Animator::PixmapTransitionAnimation);
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m_hoverAnimation->setProperty("duration", 250);
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m_hoverAnimation->setTargetWidget(this);
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m_testPrefix = "hover";
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if (m_background->hasElementPrefix("shadow") ||
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m_background->hasElement("shadow")) {
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m_prefix = "shadow";
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}
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parent->installEventFilter(this);
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connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), SLOT(syncGeometry()));
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}
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FocusIndicator::~FocusIndicator()
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{
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m_parent->removeEventFilter(this);
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delete m_fade;
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}
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void FocusIndicator::setCustomGeometry(const QRectF &geometry)
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{
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if (m_customGeometry == geometry) {
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return;
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}
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m_customGeometry = geometry;
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syncGeometry();
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}
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void FocusIndicator::setCustomPrefix(const QString &prefix)
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{
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QString was = m_prefix;
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if (!m_prefix.isEmpty() && !m_customPrefix.isEmpty()) {
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m_prefix.remove(m_customPrefix);
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}
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m_customPrefix = prefix;
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if (!m_prefix.isEmpty()) {
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m_prefix.prepend(m_customPrefix);
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}
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m_testPrefix = m_customPrefix % "hover";
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if (m_prefix.isEmpty()) {
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m_prefix = m_customPrefix % "shadow";
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}
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if (m_prefix == was) {
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return;
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}
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syncGeometry();
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resizeEvent(0);
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}
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bool FocusIndicator::eventFilter(QObject *watched, QEvent *event)
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{
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if (Theme::defaultTheme()->useNativeWidgetStyle() ||
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static_cast<QGraphicsWidget *>(watched) != m_parent || !m_parent ) {
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return false;
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}
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if (event->type() == QEvent::GraphicsSceneHoverEnter) {
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m_isUnderMouse = true;
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} else if (event->type() == QEvent::GraphicsSceneHoverLeave) {
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m_isUnderMouse = false;
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}
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switch (event->type()) {
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case QEvent::GraphicsSceneHoverEnter:
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if (!m_parent->hasFocus()) {
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m_prefix = m_customPrefix % "hover";
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syncGeometry();
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m_hoverAnimation->stop();
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if (m_background->hasElementPrefix(m_testPrefix)) {
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m_background->setElementPrefix(m_customPrefix % "shadow");
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m_hoverAnimation->setProperty("startPixmap", m_background->framePixmap());
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m_background->setElementPrefix(m_customPrefix % "hover");
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m_hoverAnimation->setProperty("targetPixmap", m_background->framePixmap());
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} else if (m_background->hasElement(m_testPrefix)) {
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m_hoverAnimation->setProperty("startPixmap", m_background->pixmap(m_customPrefix % "shadow"));
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m_hoverAnimation->setProperty("targetPixmap", m_background->pixmap(m_customPrefix % "hover"));
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}
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m_hoverAnimation->start();
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}
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break;
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case QEvent::GraphicsSceneHoverLeave:
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if (!m_parent->hasFocus()) {
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m_prefix = m_customPrefix % "shadow";
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syncGeometry();
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m_hoverAnimation->stop();
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if (m_background->hasElementPrefix(m_testPrefix)) {
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m_background->setElementPrefix(m_customPrefix % "hover");
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m_hoverAnimation->setProperty("startPixmap", m_background->framePixmap());
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m_background->setElementPrefix(m_customPrefix % "shadow");
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m_hoverAnimation->setProperty("targetPixmap", m_background->framePixmap());
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} else if (m_background->hasElement(m_testPrefix)) {
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m_hoverAnimation->setProperty("startPixmap", m_background->pixmap(m_customPrefix % "hover"));
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m_hoverAnimation->setProperty("targetPixmap", m_background->pixmap(m_customPrefix % "shadow"));
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}
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m_hoverAnimation->start();
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}
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break;
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case QEvent::GraphicsSceneResize:
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syncGeometry();
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break;
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case QEvent::FocusIn:
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m_prefix = m_customPrefix % "focus";
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syncGeometry();
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m_hoverAnimation->stop();
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if (m_background->hasElementPrefix(m_customPrefix % "focus")) {
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//m_background->setElementPrefix(m_customPrefix % "shadow");
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m_hoverAnimation->setProperty("startPixmap", m_background->framePixmap());
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m_background->setElementPrefix(m_customPrefix % "focus");
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m_hoverAnimation->setProperty("targetPixmap", m_background->framePixmap());
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} else if (m_background->hasElement(m_customPrefix % "focus")) {
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//m_hoverAnimation->setProperty("startPixmap", m_background->pixmap(m_customPrefix % "shadow"));
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m_hoverAnimation->setProperty("targetPixmap", m_background->pixmap(m_customPrefix % "focus"));
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}
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m_hoverAnimation->start();
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break;
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case QEvent::FocusOut:
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if (!m_isUnderMouse) {
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m_prefix = m_customPrefix % "shadow";
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syncGeometry();
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m_hoverAnimation->stop();
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if (m_background->hasElementPrefix(m_customPrefix % "focus")) {
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m_background->setElementPrefix("focus");
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m_hoverAnimation->setProperty("startPixmap", m_background->framePixmap());
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m_background->setElementPrefix("shadow");
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m_hoverAnimation->setProperty("targetPixmap", m_background->framePixmap());
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} else if (m_background->hasElement(m_customPrefix % "focus")) {
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m_hoverAnimation->setProperty("startPixmap", m_background->pixmap(m_customPrefix % "focus"));
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m_hoverAnimation->setProperty("targetPixmap", m_background->pixmap(m_customPrefix % "shadow"));
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}
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m_hoverAnimation->start();
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}
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break;
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default:
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break;
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};
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return false;
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}
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void FocusIndicator::resizeEvent(QGraphicsSceneResizeEvent *)
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{
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if (m_background->hasElementPrefix(m_customPrefix % "shadow")) {
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m_background->setElementPrefix(m_customPrefix % "shadow");
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m_background->resizeFrame(size());
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}
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if (m_background->hasElementPrefix(m_customPrefix % "hover")) {
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m_background->setElementPrefix(m_customPrefix % "hover");
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m_background->resizeFrame(size());
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}
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if (m_background->hasElementPrefix(m_customPrefix % "focus")) {
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m_background->setElementPrefix(m_customPrefix % "focus");
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m_background->resizeFrame(size());
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}
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if (m_hoverAnimation->state() == QAbstractAnimation::Running) {
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m_hoverAnimation->stop();
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}
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if (m_background->hasElementPrefix(m_testPrefix)) {
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m_background->setElementPrefix(m_prefix);
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m_hoverAnimation->setProperty("startPixmap", m_background->framePixmap());
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m_hoverAnimation->setProperty("targetPixmap", m_background->framePixmap());
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} else if (m_background->hasElement(m_testPrefix)) {
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m_hoverAnimation->setProperty("startPixmap", m_background->pixmap(m_prefix));
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m_hoverAnimation->setProperty("targetPixmap", m_background->pixmap(m_prefix));
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}
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}
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void FocusIndicator::animateVisibility(const bool visible)
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{
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m_fade->setProperty("startOpacity", opacity());
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if (visible) {
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m_fade->setProperty("targetOpacity", 1.0);
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} else {
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m_fade->setProperty("targetOpacity", 0);
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}
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m_fade->start();
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}
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void FocusIndicator::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->drawPixmap(
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option->rect,
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m_hoverAnimation->property("currentPixmap").value<QPixmap>());
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}
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void FocusIndicator::syncGeometry()
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{
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if (Theme::defaultTheme()->useNativeWidgetStyle()) {
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hide();
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return;
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} else if (!isVisible()) {
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show();
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}
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QRectF geom;
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if (!m_customGeometry.isEmpty()) {
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geom = m_customGeometry;
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} else {
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geom = m_parent->boundingRect();
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}
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if (m_background->hasElementPrefix(m_testPrefix)) {
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//always take borders from hover to make it stable
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m_background->setElementPrefix(m_testPrefix);
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qreal left, top, right, bottom;
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m_background->getMargins(left, top, right, bottom);
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m_background->setElementPrefix(m_prefix);
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setGeometry(QRectF(geom.topLeft() + QPointF(-left, -top), geom.size() + QSize(left+right, top+bottom)));
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} else if (m_background->hasElement(m_testPrefix)) {
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QRectF elementRect = m_background->elementRect(m_testPrefix);
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elementRect.moveCenter(geom.center());
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setGeometry(elementRect);
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}
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}
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}
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#include <focusindicator_p.moc>
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