Small ui improvements

src/elidedlabel.cpp

@@ -0,0 +1,70 @@
+#include "elidedlabel.h"
+
+#include <QTextLayout>
+#include <QPainter>
+
+ElidedLabel::ElidedLabel(const QString &text, QWidget *parent)
+	: QFrame(parent)
+	, elided(false)
+	, content(text)
+{
+	setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+}
+
+ElidedLabel::ElidedLabel(QWidget *parent)
+	: QFrame(parent)
+	, elided(false)
+	, content("")
+{
+	setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+}
+
+void ElidedLabel::setText(const QString &newText)
+{
+	content = newText;
+	update();
+}
+
+void ElidedLabel::paintEvent(QPaintEvent *event)
+{
+	QFrame::paintEvent(event);
+
+	QPainter painter(this);
+	QFontMetrics fontMetrics = painter.fontMetrics();
+
+	bool didElide = false;
+	int lineSpacing = fontMetrics.lineSpacing();
+	int y = 0;
+
+	QTextLayout textLayout(content, painter.font());
+	textLayout.beginLayout();
+	forever {
+		QTextLine line = textLayout.createLine();
+
+		if (!line.isValid())
+			break;
+
+		line.setLineWidth(width());
+		int nextLineY = y + lineSpacing;
+
+		if (height() >= nextLineY + lineSpacing) {
+			line.draw(&painter, QPoint(0, y));
+			y = nextLineY;
+			//! [2]
+			//! [3]
+		} else {
+			QString lastLine = content.mid(line.textStart());
+			QString elidedLastLine = fontMetrics.elidedText(lastLine, Qt::ElideRight, width());
+			painter.drawText(QPoint(0, y + fontMetrics.ascent()), elidedLastLine);
+			line = textLayout.createLine();
+			didElide = line.isValid();
+			break;
+		}
+	}
+	textLayout.endLayout();
+
+	if (didElide != elided) {
+		elided = didElide;
+		emit elisionChanged(didElide);
+	}
+}