X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fviewport.cpp;h=a179cef1c6ca572609e12ad10ad3ad2de2eef59e;hb=60938e0430a0d08792ba53b86ca94153baaed74d;hp=4b5fe245e0c11a9c6af77fdd038201d4427e997e;hpb=c063290ac7189bdd15221450f598504f43286b43;p=pulseview.git

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 4b5fe24..a179cef 100644
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -17,9 +17,9 @@
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <algorithm>
 #include <cassert>
 #include <cmath>
-#include <algorithm>
 #include <limits>
 
 #include "signal.hpp"
@@ -153,6 +153,12 @@ bool Viewport::touch_event(QTouchEvent *event)
 
 void Viewport::paintEvent(QPaintEvent*)
 {
+	typedef void (ViewItem::*LayerPaintFunc)(
+		QPainter &p, ViewItemPaintParams &pp);
+	LayerPaintFunc layer_paint_funcs[] = {
+		&ViewItem::paint_back, &ViewItem::paint_mid,
+		&ViewItem::paint_fore, nullptr};
+
 	vector< shared_ptr<RowItem> > row_items(view_.list_by_type<RowItem>());
 	assert(none_of(row_items.begin(), row_items.end(),
 		[](const shared_ptr<RowItem> &r) { return !r; }));
@@ -168,24 +174,16 @@ void Viewport::paintEvent(QPaintEvent*)
 	QPainter p(this);
 	p.setRenderHint(QPainter::Antialiasing);
 
-	const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset());
-
-	for (const shared_ptr<TimeItem> t : time_items)
-		t->paint_back(p, pp);
-	for (const shared_ptr<RowItem> r : row_items)
-		r->paint_back(p, pp);
-
-	for (const shared_ptr<TimeItem> t : time_items)
-		t->paint_mid(p, pp);
-	for (const shared_ptr<RowItem> r : row_items)
-		r->paint_mid(p, pp);
+	for (LayerPaintFunc *paint_func = layer_paint_funcs;
+			*paint_func; paint_func++) {
+		ViewItemPaintParams time_pp(rect(), view_.scale(), view_.offset());
+		for (const shared_ptr<TimeItem> t : time_items)
+			(t.get()->*(*paint_func))(p, time_pp);
 
-	for (const shared_ptr<RowItem> r : row_items)
-		r->paint_fore(p, pp);
-
-	p.setRenderHint(QPainter::Antialiasing, false);
-	for (const shared_ptr<TimeItem> t : time_items)
-		t->paint_fore(p, pp);
+		ViewItemPaintParams row_pp(rect(), view_.scale(), view_.offset());
+		for (const shared_ptr<RowItem> r : row_items)
+			(r.get()->*(*paint_func))(p, row_pp);
+	}
 
 	p.end();
 }