From f998e21e7d4922fb9e6517c638cffb47ffe0e5df Mon Sep 17 00:00:00 2001
From: Marko Luukkainen <marko.luukkainen@semantum.fi>
Date: Wed, 21 Oct 2020 11:46:08 +0300
Subject: [PATCH] Scale tooltip font by display DPI.

Dragging or moving pointer out of view clears hover objects.

gitlab #142

Change-Id: I68e8f1da87ad9c2a979792bfc14911cc474f6ead
---
 .../g3d/vtk/awt/vtkCameraAndSelectorAction.java      | 12 ++++++++++++
 .../src/org/simantics/g3d/vtk/utils/vtkToolTip.java  |  6 ++++++
 2 files changed, 18 insertions(+)

diff --git a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/awt/vtkCameraAndSelectorAction.java b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/awt/vtkCameraAndSelectorAction.java
index 0ce1acd2..eef4e247 100644
--- a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/awt/vtkCameraAndSelectorAction.java
+++ b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/awt/vtkCameraAndSelectorAction.java
@@ -196,6 +196,10 @@ public class vtkCameraAndSelectorAction extends vtkAwtAction implements ISelecti
 				resetCameraClippingRange();
 			}
 		}
+		if (hoverActor.size() > 0) {
+			hoverActor.clear();
+			fireHoverChanged();
+		}
 		lastX = x;
 		lastY = y;
 		panel.Render();
@@ -295,6 +299,14 @@ public class vtkCameraAndSelectorAction extends vtkAwtAction implements ISelecti
 			}
 		}
 		
+		@Override
+		public void mouseExited(MouseEvent e) {
+			if (hoverActor.size() > 0) {
+				hoverActor.clear();
+				fireHoverChanged();
+			}
+		}
+		
 		/**
 		 * Returns mouse position in AWT screen coordinates. 
 		 * @return
diff --git a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/utils/vtkToolTip.java b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/utils/vtkToolTip.java
index e5625746..bb03d3b0 100644
--- a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/utils/vtkToolTip.java
+++ b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/utils/vtkToolTip.java
@@ -18,6 +18,7 @@ public class vtkToolTip<T> implements RenderListener{
 	double backgroundOpacity = 0.8;
 	double color[] = new double[] {0.0,0.0,0.0};
 	double frameColor[] = new double[] {0.0,0.0,0.0};
+	int fontSize = 12;
 	
 	T obj = null;
 	Point3d pos3d;
@@ -80,6 +81,10 @@ public class vtkToolTip<T> implements RenderListener{
 		this.frameColor = frameColor;
 	}
 	
+	public void setFontSize(int fontSize) {
+		this.fontSize = fontSize;
+	}
+	
 	/**
 	 * Removes/hides current tooltip.
 	 */
@@ -190,6 +195,7 @@ public class vtkToolTip<T> implements RenderListener{
 			} else {
 				prop.SetFrame(0);
 			}
+			prop.SetFontSize(view.upscale(fontSize));
 			
 			prop.Delete();
 			view.addDeletable(textActor);
-- 
2.47.1