From 8a226626bec3acf09ec8d29aca1000e7efd645d0 Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Thu, 12 Jul 2018 17:38:58 +0200
Subject: changed order of scale and translate, makes it zoom at center

---
 gui/fpgaviewwidget.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'gui')

diff --git a/gui/fpgaviewwidget.cc b/gui/fpgaviewwidget.cc
index 7a188863..7d9d3727 100644
--- a/gui/fpgaviewwidget.cc
+++ b/gui/fpgaviewwidget.cc
@@ -342,8 +342,8 @@ void FPGAViewWidget::paintGL()
 
     QMatrix4x4 matrix;
     matrix.ortho(QRectF(-aspect / 2.0, -0.5, aspect, 1.0f));
-    matrix.translate(moveX_, moveY_, -0.5);
     matrix.scale(zoom_ * 0.01f, -zoom_ * 0.01f, 0);
+    matrix.translate(moveX_, -moveY_, 0);
 
     // Draw grid.
     auto grid = LineShaderData(0.001f, QColor("#DDD"));
@@ -434,7 +434,7 @@ void FPGAViewWidget::wheelEvent(QWheelEvent *event)
     QPoint degree = event->angleDelta() / 8;
 
     if (!degree.isNull()) {
-        float steps = degree.y() / 15.0;
+        float steps = degree.y() / 3.0;
         setZoom(zoom_ + steps);
     }
 }
-- 
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