class to fix resizing issues of JTextArea

PhilippSalvisberg · PhilippSalvisberg · commit 8baf8f35c091 · 2019-06-12T00:29:05.000+02:00
when putting JTextArea into JPanel and JPanel into JScrollPane
diff --git a/sqldev/src/main/java/org/utplsql/sqldev/ui/runner/ScrollablePanel.xtend b/sqldev/src/main/java/org/utplsql/sqldev/ui/runner/ScrollablePanel.xtend
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2019 Philipp Salvisberg <philipp.salvisberg@trivadis.com>
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.utplsql.sqldev.ui.runner
+
+import java.awt.Rectangle
+import javax.swing.JPanel
+import javax.swing.Scrollable
+
+/*
+ * Fixes resizing issues of JTextArea when put into JPanel and JPanel into JScrollPane 
+ * Solution is based on https://stackoverflow.com/questions/15783014/jtextarea-on-jpanel-inside-jscrollpane-does-not-resize-properly/15786939
+ */ 
+class ScrollablePanel extends JPanel implements Scrollable {
+
+	override getPreferredScrollableViewportSize() {
+		return super.getPreferredSize()
+	}
+
+	override getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
+		return 0
+	}
+
+	override getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
+		return 0
+	}
+
+	override getScrollableTracksViewportWidth() {
+		return true
+	}
+
+	override getScrollableTracksViewportHeight() {
+		return false
+	}
+}
