/*
 * Copyright (c) 2010-2015 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swift/QtUI/QtElidingLabel.h>

namespace Swift {
QtElidingLabel::QtElidingLabel(QWidget* parent, Qt::WindowFlags f) : QLabel(parent, f) {
    fullText_ = "";
    dirty_ = true;
    setSizes();
    setTextFormat(Qt::PlainText);
}

QtElidingLabel::QtElidingLabel(const QString& text, QWidget* parent, Qt::WindowFlags f) : QLabel(text, parent, f) {
    fullText_ = text;
    dirty_ = true;
    setSizes();
    setTextFormat(Qt::PlainText);
}

QtElidingLabel::~QtElidingLabel() {

}

QSize QtElidingLabel::sizeHint() const {
    return sizeHint_;
}

void QtElidingLabel::setSizes() {
    setMinimumSize(1, minimumHeight());
}

void QtElidingLabel::setText(const QString& text) {
    fullText_ = text;
    QLabel::setText(text);
    sizeHint_ = QLabel::sizeHint();
    dirty_ = true;
}

void QtElidingLabel::paintEvent(QPaintEvent* event) {
    QRect rect = contentsRect();
    dirty_ = dirty_ || rect != lastRect_;
    if (dirty_) {
        lastRect_ = rect;
        int fontWidth = fontMetrics().width(fullText_);
        if (fontWidth > rect.width()) {
            QString elidedText(fontMetrics().elidedText(fullText_, Qt::ElideRight, rect.width(), Qt::TextShowMnemonic));
            QLabel::setText(elidedText);
        } else {
            QLabel::setText(fullText_);
        }
        dirty_ = false;
    }
    QLabel::paintEvent(event);
}

}