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Merge pull request #163 from lxqt/eliding_name_label
GUI fixes: Elide playback name label if needed and…
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/*** | ||
This file is part of pavucontrol-qt. | ||
pavucontrol-qt 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. | ||
pavucontrol-qt 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 pavucontrol-qt. If not, see <https://www.gnu.org/licenses/>. | ||
***/ | ||
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#include "elidinglabel.h" | ||
#include <QPainter> | ||
#include <QStyleOption> | ||
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ElidingLabel::ElidingLabel(QWidget *parent, Qt::WindowFlags f): | ||
QLabel(parent, f), | ||
lastWidth_(0) { | ||
setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); | ||
// set a min width to prevent the window from widening with long texts | ||
setMinimumWidth(fontMetrics().averageCharWidth() * 10); | ||
} | ||
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// A simplified version of QLabel::paintEvent() without pixmap or shortcut but with eliding | ||
void ElidingLabel::paintEvent(QPaintEvent */*event*/) { | ||
QRect cr = contentsRect().adjusted(margin(), margin(), -margin(), -margin()); | ||
QString txt = text(); | ||
// if the text is changed or its rect is resized (due to window resizing), | ||
// find whether it needs to be elided... | ||
if (txt != lastText_ || cr.width() != lastWidth_) { | ||
lastText_ = txt; | ||
lastWidth_ = cr.width(); | ||
elidedText_ = fontMetrics().elidedText(txt, Qt::ElideMiddle, cr.width()); | ||
} | ||
// ... then, draw the (elided) text */ | ||
QPainter painter(this); | ||
QStyleOption opt; | ||
opt.initFrom(this); | ||
style()->drawItemText(&painter, cr, alignment(), opt.palette, isEnabled(), elidedText_, foregroundRole()); | ||
} |
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/*** | ||
This file is part of pavucontrol-qt. | ||
pavucontrol-qt 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. | ||
pavucontrol-qt 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 pavucontrol-qt. If not, see <https://www.gnu.org/licenses/>. | ||
***/ | ||
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#ifndef elidinglabel_h | ||
#define elidinglabel_h | ||
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#include <QLabel> | ||
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class ElidingLabel : public QLabel { | ||
Q_OBJECT | ||
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public: | ||
explicit ElidingLabel(QWidget *parent = 0, Qt::WindowFlags f = Qt::WindowFlags()); | ||
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protected: | ||
void paintEvent(QPaintEvent *event) override; | ||
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private: | ||
QString elidedText_; | ||
QString lastText_; | ||
int lastWidth_; | ||
}; | ||
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#endif // elidinglabel_h |
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