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cantata/support/squeezedtextlabel.h

111 lines
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/*
* Cantata
*
* Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, 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 General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SQUEEZEDTEXTLABEL_H
#define SQUEEZEDTEXTLABEL_H
#ifdef ENABLE_KDE_SUPPORT
#include <KDE/KSqueezedTextLabel>
class SqueezedTextLabel : public KSqueezedTextLabel
{
public:
SqueezedTextLabel(QWidget *p)
: KSqueezedTextLabel(p) {
bool rtl=Qt::RightToLeft==layoutDirection();
setTextElideMode(rtl ? Qt::ElideLeft : Qt::ElideRight);
setAlignment((rtl ? Qt::AlignRight : Qt::AlignLeft) | Qt::AlignVCenter);
}
};
#else
#include <QLabel>
#include <QFontMetrics>
class QResizeEvent;
class SqueezedTextLabel : public QLabel
{
public:
SqueezedTextLabel(QWidget *p)
: QLabel(p) {
bool rtl=Qt::RightToLeft==layoutDirection();
elideMode=rtl ? Qt::ElideLeft : Qt::ElideRight;
setAlignment((rtl ? Qt::AlignRight : Qt::AlignLeft) | Qt::AlignVCenter);
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
}
void setText(const QString &text) {
fullText=text;
elideText();
}
protected:
QSize minimumSizeHint() const {
QSize sh = QLabel::minimumSizeHint();
sh.setWidth(-1);
return sh;
}
QSize sizeHint() const {
return QSize(fontMetrics().width(fullText), QLabel::sizeHint().height());
}
void resizeEvent(QResizeEvent *) {
elideText();
}
private:
void elideText() {
QFontMetrics fm(fontMetrics());
int labelWidth = size().width();
int lineWidth = fm.width(fullText);
if (lineWidth > labelWidth) {
QLabel::setText(fm.elidedText(fullText, elideMode, labelWidth));
setToolTip(fullText);
} else {
QLabel::setText(fullText);
setToolTip(QString());
}
}
private:
QString fullText;
Qt::TextElideMode elideMode;
};
#endif
class PaddedSqueezedTextLabel : public SqueezedTextLabel
{
public:
PaddedSqueezedTextLabel(QWidget *p)
: SqueezedTextLabel(p) {
}
protected:
QSize sizeHint() const {
QSize sh(SqueezedTextLabel::sizeHint());;
return QSize(sh.width(), qMax((int)((fontMetrics().height()*1.1)+0.5), sh.height()));
}
};
#endif // SQUEEZEDTEXTLABEL_H