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124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
/*
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Copyright 2008-2009 by Sebastian Kügler <sebas@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "contactimage.h"
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//Qt
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#include <QGraphicsWidget>
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#include <QPainter>
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#include <QStyleOptionGraphicsItem>
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// KDE
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#include <KIcon>
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// Plasma
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#include <Plasma/DataEngine>
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#include <Plasma/Theme>
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using namespace Plasma;
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ContactImage::ContactImage(DataEngine* engine, QGraphicsWidget* parent)
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: QGraphicsWidget(parent), m_engine(engine)
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{
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border = 1; // should be a power of two, otherwise we get blurry lines
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fg = Theme::defaultTheme()->color(Theme::TextColor);
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bg = Theme::defaultTheme()->color(Theme::BackgroundColor);
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pixmapUpdated();
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}
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void ContactImage::setUrl(const QUrl& url)
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{
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if (!m_engine) {
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return;
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}
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if (!m_source.isEmpty()) {
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m_engine->disconnectSource(m_source, this);
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}
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m_source = url.isValid() ? "Pixmap\\url:" + url.toString() : QString();
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dataUpdated(m_source, DataEngine::Data());
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if (!m_source.isEmpty()) {
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m_engine->connectSource(m_source, this);
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}
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}
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void ContactImage::dataUpdated(const QString& source, const DataEngine::Data& data)
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{
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Q_UNUSED(source)
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m_pixmap = data.value("Pixmap").value<QPixmap>();
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pixmapUpdated();
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update();
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}
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void ContactImage::pixmapUpdated()
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{
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QSize newSize = QSize(contentsRect().width() - (border * 2), contentsRect().height() - (border * 2));
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if (newSize.isEmpty()) {
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m_scaledPixmap = QPixmap();
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return;
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}
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if (!m_pixmap.isNull()) {
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if (newSize.width() > m_pixmap.width()) {
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newSize.setWidth(m_pixmap.width());
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}
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if (newSize.height() > m_pixmap.height()) {
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newSize.setHeight(m_pixmap.height());
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}
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m_scaledPixmap = m_pixmap.scaled(newSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
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} else {
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m_scaledPixmap = KIcon("system-users").pixmap(newSize);
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}
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}
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void ContactImage::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->setRenderHint(QPainter::SmoothPixmapTransform);
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painter->setRenderHint(QPainter::Antialiasing);
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bg.setAlphaF(.3);
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fg.setAlphaF(.2);
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painter->setBrush(bg);
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painter->setPen(fg);
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painter->translate(.5, .5); // unblur (align to full pixel)
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// compute rect of the pixmap to paint the frame
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QRectF r = QRect(contentsRect().left(), contentsRect().top(), m_scaledPixmap.width() + border*2, m_scaledPixmap.height() + border*2);
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painter->drawRoundedRect(r, border*2, border*2);
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// paint our cached scaled version of the pixmap on top of that
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painter->drawPixmap(QPoint(border, border), m_scaledPixmap);
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}
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void ContactImage::resizeEvent(QGraphicsSceneResizeEvent* event)
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{
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Q_UNUSED(event)
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pixmapUpdated();
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}
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#include "contactimage.moc"
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