plasma-framework/widgets/label.cpp
Aaron J. Seigo 835035a94d forward the link activated signal; common one
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=866468
2008-09-30 23:21:22 +00:00

186 lines
4.1 KiB
C++

/*
* Copyright 2008 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "label.h"
#include <QLabel>
#include <QPainter>
#include <QDir>
#include <KMimeType>
#include "theme.h"
#include "svg.h"
namespace Plasma
{
class LabelPrivate
{
public:
LabelPrivate(Label *label)
: q(label),
svg(0)
{
}
~LabelPrivate()
{
delete svg;
}
void setPixmap(Label *q)
{
if (imagePath.isEmpty()) {
return;
}
KMimeType::Ptr mime = KMimeType::findByPath(absImagePath);
QPixmap pm(q->size().toSize());
if (mime->is("image/svg+xml") || mime->is("application/x-gzip")) {
svg = new Svg();
svg->setImagePath(imagePath);
QPainter p(&pm);
svg->paint(&p, pm.rect());
} else {
pm = QPixmap(absImagePath);
}
static_cast<QLabel*>(q->widget())->setPixmap(pm);
}
void setPalette()
{
QLabel *native = q->nativeWidget();
QColor color = Theme::defaultTheme()->color(Theme::TextColor);
QPalette p = native->palette();
p.setColor(QPalette::Normal, QPalette::WindowText, color);
p.setColor(QPalette::Inactive, QPalette::WindowText, color);
native->setPalette(p);
}
Label *q;
QString imagePath;
QString absImagePath;
Svg *svg;
};
Label::Label(QGraphicsWidget *parent)
: QGraphicsProxyWidget(parent),
d(new LabelPrivate(this))
{
QLabel* native = new QLabel;
connect(native, SIGNAL(linkActivated(QString)), this, SIGNAL(linkActivated(QString)));
connect(Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(setPalette()));
native->setAttribute(Qt::WA_NoSystemBackground);
native->setWordWrap(true);
setWidget(native);
d->setPalette();
}
Label::~Label()
{
delete d;
}
void Label::setText(const QString &text)
{
static_cast<QLabel*>(widget())->setText(text);
}
QString Label::text() const
{
return static_cast<QLabel*>(widget())->text();
}
void Label::setImage(const QString &path)
{
if (d->imagePath == path) {
return;
}
delete d->svg;
d->svg = 0;
d->imagePath = path;
bool absolutePath = !path.isEmpty() &&
#ifdef Q_WS_WIN
!QDir::isRelativePath(path)
#else
(path[0] == '/' || path.startsWith(":/"))
#endif
;
if (absolutePath) {
d->absImagePath = path;
} else {
//TODO: package support
d->absImagePath = Theme::defaultTheme()->imagePath(path);
}
d->setPixmap(this);
}
QString Label::image() const
{
return d->imagePath;
}
void Label::setStyleSheet(const QString &stylesheet)
{
widget()->setStyleSheet(stylesheet);
}
QString Label::styleSheet()
{
return widget()->styleSheet();
}
QLabel* Label::nativeWidget() const
{
return static_cast<QLabel*>(widget());
}
void Label::dataUpdated(const QString &sourceName, const Plasma::DataEngine::Data &data)
{
Q_UNUSED(sourceName)
QStringList texts;
foreach (const QVariant& v, data) {
if (v.canConvert(QVariant::String)) {
texts << v.toString();
}
}
setText(texts.join(" "));
}
void Label::resizeEvent(QGraphicsSceneResizeEvent *event)
{
d->setPixmap(this);
QGraphicsProxyWidget::resizeEvent(event);
}
} // namespace Plasma
#include <label.moc>