X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fwidgets%2Fpopup.cpp;h=ec6d29c981c235b86451353ca620d9c5cf147868;hb=ec4f16ff84c688f2572c6e3d2e2184aee95f46f7;hp=17bc719130a5ef49eb9c2acdfc60c4696593a93f;hpb=2ad82c2e40b6865481733913a2c32735602f63c4;p=pulseview.git

diff --git a/pv/widgets/popup.cpp b/pv/widgets/popup.cpp
index 17bc7191..ec6d29c9 100644
--- a/pv/widgets/popup.cpp
+++ b/pv/widgets/popup.cpp
@@ -14,18 +14,18 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <algorithm>
+#include <cassert>
 
-#include <assert.h>
-
-#include <QtGui>
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QLineEdit>
+#include <QScrollBar>
+#include <QStyle>
+#include <QtGui>
 
 #include "popup.hpp"
 
@@ -39,6 +39,33 @@ const unsigned int Popup::ArrowLength = 10;
 const unsigned int Popup::ArrowOverlap = 3;
 const unsigned int Popup::MarginWidth = 6;
 
+
+QWidthAdjustingScrollArea::QWidthAdjustingScrollArea(QWidget* parent) :
+	QScrollArea(parent)
+{
+}
+
+void QWidthAdjustingScrollArea::setWidget(QWidget* w)
+{
+	QScrollArea::setWidget(w);
+	// It happens that QScrollArea already filters widget events,
+	// but that's an implementation detail that we shouldn't rely on.
+	w->installEventFilter(this);
+}
+
+bool QWidthAdjustingScrollArea::eventFilter(QObject* obj, QEvent* ev)
+{
+	if (obj == widget() && ev->type() == QEvent::Resize) {
+		if (widget()->height() > height())
+			setMinimumWidth(widget()->width() + qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent));
+		else
+			setMinimumWidth(widget()->width());
+	}
+
+	return QScrollArea::eventFilter(obj, ev);
+}
+
+
 Popup::Popup(QWidget *parent) :
 	QWidget(parent, Qt::Popup | Qt::FramelessWindowHint),
 	point_(),
@@ -67,14 +94,14 @@ void Popup::set_position(const QPoint point, Position pos)
 		MarginWidth + ((pos == Top) ? ArrowLength : 0));
 }
 
-bool Popup::eventFilter(QObject *obj, QEvent *evt)
+bool Popup::eventFilter(QObject *obj, QEvent *event)
 {
 	QKeyEvent *keyEvent;
 
 	(void)obj;
 
-	if (evt->type() == QEvent::KeyPress) {
-		keyEvent = static_cast<QKeyEvent*>(evt);
+	if (event->type() == QEvent::KeyPress) {
+		keyEvent = static_cast<QKeyEvent*>(event);
 		if (keyEvent->key() == Qt::Key_Enter ||
 		    keyEvent->key() == Qt::Key_Return) {
 			close();
@@ -121,7 +148,7 @@ bool Popup::space_for_arrow() const
 	case Bottom:
 		if (point_.y() > y())
 			return false;
-		return true;		
+		return true;
 
 	case Left:
 		if (point_.x() < (x() + width()))
@@ -142,7 +169,7 @@ QPolygon Popup::arrow_polygon() const
 	QPolygon poly;
 
 	const QPoint p = mapFromGlobal(point_);
-	const int l = ArrowLength + ArrowOverlap; 
+	const int l = ArrowLength + ArrowOverlap;
 
 	switch (pos_) {
 	case Right:
@@ -170,7 +197,7 @@ QPolygon Popup::arrow_polygon() const
 	case Left:
 		poly << QPoint(p.x() - l, p.y() + l);
 		break;
-		
+
 	case Top:
 		poly << QPoint(p.x() + l, p.y() - l);
 		break;
@@ -291,13 +318,13 @@ void Popup::resizeEvent(QResizeEvent*)
 	setMask(popup_region());
 }
 
-void Popup::mouseReleaseEvent(QMouseEvent *e)
+void Popup::mouseReleaseEvent(QMouseEvent *event)
 {
-	assert(e);
+	assert(event);
 
 	// We need our own out-of-bounds click handler because QWidget counts
 	// the drop-shadow region as inside the widget
-	if (!bubble_rect().contains(e->pos()))
+	if (!bubble_rect().contains(event->pos()))
 		close();
 }