331 lines
8.6 KiB
C++
331 lines
8.6 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 <QApplication>
|
|
#include <QLabel>
|
|
#include <QPainter>
|
|
#include <QDir>
|
|
#include <QStyleOptionGraphicsItem>
|
|
#include <QGraphicsSceneMouseEvent>
|
|
#include <QMenu>
|
|
|
|
#include <kmimetype.h>
|
|
#include <kglobalsettings.h>
|
|
#include <kcolorscheme.h>
|
|
|
|
#include "theme.h"
|
|
#include "svg.h"
|
|
|
|
namespace Plasma
|
|
{
|
|
|
|
class LabelPrivate
|
|
{
|
|
public:
|
|
LabelPrivate(Label *label)
|
|
: q(label),
|
|
svg(0),
|
|
customFont(false)
|
|
{
|
|
}
|
|
|
|
~LabelPrivate()
|
|
{
|
|
delete svg;
|
|
}
|
|
|
|
void setPixmap()
|
|
{
|
|
if (imagePath.isEmpty()) {
|
|
delete svg;
|
|
svg = 0;
|
|
return;
|
|
}
|
|
|
|
KMimeType::Ptr mime = KMimeType::findByPath(absImagePath);
|
|
QPixmap pm(q->size().toSize());
|
|
|
|
if (mime->is("image/svg+xml") || mime->is("image/svg+xml-compressed")) {
|
|
if (!svg || svg->imagePath() != absImagePath) {
|
|
delete svg;
|
|
svg = new Svg();
|
|
svg->setImagePath(imagePath);
|
|
QObject::connect(svg, SIGNAL(repaintNeeded()), q, SLOT(setPixmap()));
|
|
}
|
|
|
|
QPainter p(&pm);
|
|
svg->paint(&p, pm.rect());
|
|
} else {
|
|
delete svg;
|
|
svg = 0;
|
|
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);
|
|
color.setAlphaF(0.6);
|
|
p.setColor(QPalette::Disabled, QPalette::WindowText, color);
|
|
|
|
p.setColor(QPalette::Normal, QPalette::Link, Theme::defaultTheme()->color(Theme::LinkColor));
|
|
p.setColor(QPalette::Normal, QPalette::LinkVisited, Theme::defaultTheme()->color(Theme::VisitedLinkColor));
|
|
native->setPalette(p);
|
|
|
|
if (!customFont) {
|
|
q->nativeWidget()->setFont(Plasma::Theme::defaultTheme()->font(Plasma::Theme::DefaultFont));
|
|
}
|
|
}
|
|
|
|
Label *q;
|
|
QString imagePath;
|
|
QString absImagePath;
|
|
Svg *svg;
|
|
bool textSelectable;
|
|
bool customFont;
|
|
};
|
|
|
|
Label::Label(QGraphicsWidget *parent)
|
|
: QGraphicsProxyWidget(parent),
|
|
d(new LabelPrivate(this))
|
|
{
|
|
QLabel *native = new QLabel;
|
|
native->setWindowFlags(native->windowFlags()|Qt::BypassGraphicsProxyWidget);
|
|
d->textSelectable = false;
|
|
connect(native, SIGNAL(linkActivated(QString)), this, SIGNAL(linkActivated(QString)));
|
|
connect(native, SIGNAL(linkHovered(QString)), this, SIGNAL(linkHovered(QString)));
|
|
|
|
connect(Theme::defaultTheme(), SIGNAL(themeChanged()), this, SLOT(setPalette()));
|
|
connect(KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()), 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);
|
|
updateGeometry();
|
|
}
|
|
|
|
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(QLatin1String(":/")))
|
|
#endif
|
|
;
|
|
|
|
if (absolutePath) {
|
|
d->absImagePath = path;
|
|
} else {
|
|
//TODO: package support
|
|
d->absImagePath = Theme::defaultTheme()->imagePath(path);
|
|
}
|
|
|
|
d->setPixmap();
|
|
}
|
|
|
|
QString Label::image() const
|
|
{
|
|
return d->imagePath;
|
|
}
|
|
|
|
void Label::setScaledContents(bool scaled)
|
|
{
|
|
static_cast<QLabel*>(widget())->setScaledContents(scaled);
|
|
}
|
|
|
|
bool Label::hasScaledContents() const
|
|
{
|
|
return static_cast<QLabel*>(widget())->hasScaledContents();
|
|
}
|
|
|
|
void Label::setTextSelectable(bool enable)
|
|
{
|
|
d->textSelectable = enable;
|
|
}
|
|
|
|
bool Label::textSelectable() const
|
|
{
|
|
return d->textSelectable;
|
|
}
|
|
|
|
void Label::setAlignment(Qt::Alignment alignment)
|
|
{
|
|
nativeWidget()->setAlignment(alignment);
|
|
}
|
|
|
|
Qt::Alignment Label::alignment() const
|
|
{
|
|
return nativeWidget()->alignment();
|
|
}
|
|
|
|
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::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
|
|
{
|
|
QContextMenuEvent contextMenuEvent(QContextMenuEvent::Reason(event->reason()),
|
|
event->pos().toPoint(), event->screenPos(), event->modifiers());
|
|
QApplication::sendEvent(nativeWidget(), &contextMenuEvent);
|
|
}
|
|
|
|
void Label::resizeEvent(QGraphicsSceneResizeEvent *event)
|
|
{
|
|
d->setPixmap();
|
|
QGraphicsProxyWidget::resizeEvent(event);
|
|
}
|
|
|
|
void Label::mousePressEvent(QGraphicsSceneMouseEvent *event)
|
|
{
|
|
if (!d->textSelectable) {
|
|
event->ignore();
|
|
} else {
|
|
QGraphicsProxyWidget::mousePressEvent(event);
|
|
}
|
|
}
|
|
|
|
void Label::paint(QPainter *painter,
|
|
const QStyleOptionGraphicsItem *option,
|
|
QWidget *widget)
|
|
{
|
|
QLabel *native = nativeWidget();
|
|
QFontMetrics fm = native->font();
|
|
|
|
//FIXME: using QGraphicsProxyWidget::paint directly with opacity<1 produces uninitialized random gibberish
|
|
if (qFuzzyCompare((qreal)1.0, opacity()) && (native->wordWrap() || native->text().isEmpty() || size().width() >= fm.width(native->text()))) {
|
|
QGraphicsProxyWidget::paint(painter, option, widget);
|
|
} else {
|
|
const int gradientLength = 25;
|
|
QPixmap buffer(size().toSize());
|
|
buffer.fill(Qt::transparent);
|
|
|
|
QPainter buffPainter(&buffer);
|
|
|
|
QGraphicsProxyWidget::paint(&buffPainter, option, widget);
|
|
|
|
QLinearGradient gr;
|
|
|
|
buffPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
|
|
buffPainter.setPen(Qt::NoPen);
|
|
|
|
if (option->direction == Qt::LeftToRight) {
|
|
gr.setStart(size().width()-gradientLength, 0);
|
|
gr.setFinalStop(size().width(), 0);
|
|
gr.setColorAt(0, Qt::black);
|
|
gr.setColorAt(1, Qt::transparent);
|
|
buffPainter.setBrush(gr);
|
|
|
|
buffPainter.drawRect(QRect(gr.start().toPoint(), QSize(gradientLength, size().height())));
|
|
} else {
|
|
gr.setStart(0, 0);
|
|
gr.setFinalStop(gradientLength, 0);
|
|
gr.setColorAt(0, Qt::transparent);
|
|
gr.setColorAt(1, Qt::black);
|
|
buffPainter.setBrush(gr);
|
|
|
|
buffPainter.drawRect(QRect(0, 0, gradientLength, size().height()));
|
|
}
|
|
|
|
buffPainter.end();
|
|
painter->drawPixmap(buffer.rect(), buffer, buffer.rect());
|
|
}
|
|
}
|
|
|
|
void Label::changeEvent(QEvent *event)
|
|
{
|
|
if (event->type() == QEvent::FontChange && font() != QApplication::font()) {
|
|
d->customFont = true;
|
|
nativeWidget()->setFont(font());
|
|
}
|
|
|
|
QGraphicsProxyWidget::changeEvent(event);
|
|
}
|
|
|
|
bool Label::event(QEvent *event)
|
|
{
|
|
if (event->type() == QEvent::Show && font() != QApplication::font()) {
|
|
d->customFont = true;
|
|
nativeWidget()->setFont(font());
|
|
}
|
|
return QGraphicsProxyWidget::event(event);
|
|
}
|
|
|
|
} // namespace Plasma
|
|
|
|
#include <label.moc>
|
|
|