From fad6cd0cc8033b6ef1ee16998cccd0d756030147 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Thu, 20 Apr 2023 04:39:30 +0200
Subject: GraphUI Button.createGLRegion(): Pre-calc Region buffer size for
BaseButton (16) + Label-Text to avoid buffer grow
---
.../classes/com/jogamp/graph/ui/shapes/Button.java | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
(limited to 'src/graphui/classes/com')
diff --git a/src/graphui/classes/com/jogamp/graph/ui/shapes/Button.java b/src/graphui/classes/com/jogamp/graph/ui/shapes/Button.java
index c1be8064d..a19a58003 100644
--- a/src/graphui/classes/com/jogamp/graph/ui/shapes/Button.java
+++ b/src/graphui/classes/com/jogamp/graph/ui/shapes/Button.java
@@ -28,9 +28,10 @@
package com.jogamp.graph.ui.shapes;
import com.jogamp.opengl.GL2ES2;
-
+import com.jogamp.opengl.GLProfile;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.curve.opengl.GLRegion;
import com.jogamp.graph.curve.opengl.RegionRenderer;
import com.jogamp.graph.font.Font;
import com.jogamp.graph.geom.plane.AffineTransform;
@@ -95,6 +96,18 @@ public class Button extends BaseButton {
// gl.glDisable(GL.GL_POLYGON_OFFSET_FILL);
}
+ @Override
+ protected GLRegion createGLRegion(final GLProfile glp) {
+ final int[] vertIndexCount = { 0, 0 };
+ final Font.GlyphVisitor2 visitor = new Font.GlyphVisitor2() {
+ @Override
+ public final void visit(final char symbol, final Font.Glyph glyph) {
+ Region.countOutlineShape(glyph.getShape(), vertIndexCount);
+ } };
+ this.label.getFont().processString(visitor, this.label.getText());
+ return GLRegion.create(glp, renderModes, null, 16+vertIndexCount[0], 16+vertIndexCount[1]);
+ }
+
@Override
protected void addShapeToRegion() {
addBaseShapeToRegion( FloatUtil.isZero(labelZOffset) ? 0f : -labelZOffset );
--
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