From d39f46d62a4c8ae94479101accae21aea5ce6e0e Mon Sep 17 00:00:00 2001
From: Christoph Egger <christoph@christoph-egger.org>
Date: Tue, 26 May 2015 20:38:47 +0200
Subject: [PATCH] Fix redraw bug -- call prepareGeometryChange()

"If you want to change the item's bounding rectangle, you must first
call prepareGeometryChange()." -- we are now doing so
---
 src/gui/widgets/BasicBlockWidget.cxx | 10 ++++++++--
 src/gui/widgets/BasicBlockWidget.hxx |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/gui/widgets/BasicBlockWidget.cxx b/src/gui/widgets/BasicBlockWidget.cxx
index eee78c4..e08cba5 100644
--- a/src/gui/widgets/BasicBlockWidget.cxx
+++ b/src/gui/widgets/BasicBlockWidget.cxx
@@ -235,6 +235,7 @@ void BasicBlockWidget::populateWidget() {
 	QGraphicsTextItem* item = _widget.get();
 	item->setDocument(document);
 	item->adjustSize();
+	updateSize();
 }
 
 QString BasicBlockWidget::formatComments(Instruction* inst) {
@@ -245,11 +246,16 @@ QString BasicBlockWidget::formatComments(Instruction* inst) {
 	return (comments.empty() ? "" : ";; ") + comments.join("<br />").trimmed();
 }
 
-void BasicBlockWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem*,
-	           QWidget*) {
+void BasicBlockWidget::updateSize() {
+	prepareGeometryChange();
 	width = 10 + _widget->boundingRect().width();
 	height = 25 + _widget->boundingRect().height();
 	if (width < 250) width = 250;
+}
+
+void BasicBlockWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem*,
+	           QWidget*) {
+	updateSize();
 
 	painter->fillRect(0, 0, width, height, currentColor);
 	painter->setPen(QColor(0x00, 0x00, 0xff, 0xff));
diff --git a/src/gui/widgets/BasicBlockWidget.hxx b/src/gui/widgets/BasicBlockWidget.hxx
index 7c402c0..ba1153e 100644
--- a/src/gui/widgets/BasicBlockWidget.hxx
+++ b/src/gui/widgets/BasicBlockWidget.hxx
@@ -60,6 +60,7 @@ private:
 	void populateWidget();
 	void changeCommentHandler(ChangeCommentEvent* event);
 	QString formatComments(Instruction* inst);
+	void updateSize();
 
 	uint32_t width, height;
 	QString name;
-- 
2.39.5