Set caption for HoverWindow

Implement a caption for HoverWindow. Used to show the filename when
hovering.

1 files changed, 30 insertions, 0 deletions

diff --git a/hoverwindow.cpp b/hoverwindow.cpp
index e9fcc64..b478879 100644
--- a/hoverwindow.cpp
+++ b/hoverwindow.cpp
@@ -12,6 +12,14 @@
 #include <QSize>
 #include <QTextDocument>
 #include <QSettings>
+#include <QPixmap>
+#include <QImage>
+#include <QPainter>
+#include <QFontMetrics>
+#include <QBrush>
+#include <QPen>
+#include <QColor>
+#include <QApplication>
 
 #include "hoverwindow.h"
 #include "smglobals.h"
@@ -89,6 +97,28 @@ void HoverWindow::setData(const QList<QVariant> &data){
 	setContent(data.at(0).toString(), dataList);
 }
 
+void HoverWindow::setCaption(const QString &caption){
+	const QPixmap *pm = mLabel->pixmap();
+	if(!pm){
+		return;
+	}
+	QFontMetrics fm = qApp->fontMetrics();
+	QString elidedCap = fm.elidedText(caption, Qt::ElideMiddle, pm->size().width() - 18, Qt::TextSingleLine);
+	QSize captionSize = fm.size(Qt::TextSingleLine, elidedCap);
+	QImage img = pm->toImage();
+	QPainter *p = new QPainter(&img);
+	QColor bgColor(Qt::white);
+	p->setBrush(QBrush(bgColor));
+	p->setPen(Qt::NoPen);
+	qreal xStart = (pm->size().width() - captionSize.width()) / 2.0;
+	QRectF bgRect(xStart, 5, captionSize.width() + 6, captionSize.height());
+	p->drawRect(bgRect);
+	p->setPen(Qt::black);
+	p->drawText(bgRect.topLeft().x() + 3, bgRect.topLeft().y() + fm.ascent(), elidedCap);
+	delete p;
+	mLabel->setPixmap(QPixmap::fromImage(img));
+}
+
 int HoverWindow::pixmapHeight() const{
 	const QPixmap *pm = mLabel->pixmap();
 	return pm ? pm->height() : 0;