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97 lines
3.2 KiB
97 lines
3.2 KiB
7 years ago
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "statusbar.h"
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#include <QPainter>
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#include <QStyleOption>
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#define MESSAGE_DELAY 250
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namespace PCManFM {
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Label::Label(QWidget* parent, Qt::WindowFlags f):
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QLabel(parent, f),
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lastWidth_(0) {
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setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
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// set a min width to prevent the window from widening with long texts
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setMinimumWidth(fontMetrics().averageCharWidth() * 10);
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}
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// A simplified version of QLabel::paintEvent()
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// without pixmap or shortcut but with eliding.
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void Label::paintEvent(QPaintEvent* /*event*/) {
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QRect cr = contentsRect().adjusted(margin(), margin(), -margin(), -margin());
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QString txt = text();
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// if the text is changed or its rect is resized (due to window resizing),
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// find whether it needs to be elided...
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if (txt != lastText_ || cr.width() != lastWidth_) {
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lastText_ = txt;
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lastWidth_ = cr.width();
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elidedText_ = fontMetrics().elidedText(txt, Qt::ElideMiddle, cr.width());
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}
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// ... then, draw the (elided) text
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if(!elidedText_.isEmpty()) {
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QPainter painter(this);
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QStyleOption opt;
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opt.initFrom(this);
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style()->drawItemText(&painter, cr, alignment(), opt.palette, isEnabled(), elidedText_, foregroundRole());
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}
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}
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StatusBar::StatusBar(QWidget *parent):
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QStatusBar(parent),
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lastTimeOut_(0) {
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statusLabel_ = new Label();
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statusLabel_->setFrameShape(QFrame::NoFrame);
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// 4px space on both sides (not to be mixed with the permanent widget)
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statusLabel_->setContentsMargins(4, 0, 4, 0);
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addWidget(statusLabel_);
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messageTimer_ = new QTimer (this);
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messageTimer_->setSingleShot(true);
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messageTimer_->setInterval(MESSAGE_DELAY);
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connect(messageTimer_, &QTimer::timeout, this, &StatusBar::reallyShowMessage);
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}
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StatusBar::~StatusBar() {
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if(messageTimer_) {
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messageTimer_->stop();
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delete messageTimer_;
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}
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}
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void StatusBar::showMessage(const QString &message, int timeout) {
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// don't show the message immediately
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lastMessage_ = message;
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lastTimeOut_ = timeout;
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if(!messageTimer_->isActive()) {
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messageTimer_->start();
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}
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}
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void StatusBar::reallyShowMessage() {
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if(lastTimeOut_ == 0) {
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// set the text on the label to prevent its disappearance on focusing menubar items
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// and also ensure that it contsains no newline (because file names may contain it)
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statusLabel_->setText(lastMessage_.replace(QLatin1Char('\n'), QLatin1Char(' ')));
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}
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else {
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QStatusBar::showMessage(lastMessage_, lastTimeOut_);
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}
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}
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}
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