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FYI: New ScrollPaneLayout test
- From: "Roman Kennke" <roman dot kennke at aicas dot com>
- To: mauve-patches at sources dot redhat dot com
- Date: Sun, 29 Jan 2006 15:55:27 +0000
- Subject: FYI: New ScrollPaneLayout test
- Bounce-to: "Roman Kennke" <roman.kennke@aicas.com>
Hi there,
I committed the attached testlet, which tests the method
ScrollPaneLayout.minimumLayoutSize().
2006-01-29 Roman Kennke <kennke@aicas.com>
* gnu/testlet/javax/swing/ScrollPaneLayout/minimumLayoutSize.java:
New test.
/Roman
Index: gnu/testlet/javax/swing/ScrollPaneLayout/minimumLayoutSize.java
===================================================================
RCS file: gnu/testlet/javax/swing/ScrollPaneLayout/minimumLayoutSize.java
diff -N gnu/testlet/javax/swing/ScrollPaneLayout/minimumLayoutSize.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ gnu/testlet/javax/swing/ScrollPaneLayout/minimumLayoutSize.java 29 Jan 2006 15:51:40 -0000
@@ -0,0 +1,238 @@
+/* minimumLayoutSize.java -- Checks the minimumLayoutSize() method
+ Copyright (C) 2006 Roman Kennke (kennke@aicas.com)
+This file is part of Mauve.
+
+Mauve is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Mauve is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Mauve; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+*/
+
+// Tags: JDK1.2
+
+package gnu.testlet.javax.swing.ScrollPaneLayout;
+
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Insets;
+
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.ScrollPaneLayout;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+/**
+ * Tests the minimumLayoutSize() method in ScrollPaneLayout under different
+ * settings. It turns out that the minimumSize is determined using the
+ * scrollpane's insets and the minimumSizes of the horizontal and vertical
+ * scrollbars, except when the (h/v) scrollbar policy is set to NEVER.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+public class minimumLayoutSize implements Testlet
+{
+
+ /**
+ * The entry point for the tests.
+ *
+ * @param harness the test harness to use
+ */
+ public void test(TestHarness harness)
+ {
+ testHorizontalScrollbarAlways(harness);
+ testHorizontalScrollbarAsNeeded(harness);
+ testHorizontalScrollbarNever(harness);
+ testVerticalScrollbarAlways(harness);
+ testVerticalScrollbarAsNeeded(harness);
+ testVerticalScrollbarNever(harness);
+ }
+
+ /**
+ * Tests with HORIZONTAL_SCROLLBAR_ALWAYS.
+ *
+ * @param h the test harness to use
+ */
+ private void testHorizontalScrollbarAlways(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
+ JPanel view = new JPanel();
+ view.setMinimumSize(new Dimension(100, 100));
+ sp.getViewport().add(view);
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height
+ + c[2].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height
+ + c[2].getMinimumSize().height));
+ }
+
+ /**
+ * Tests with HORIZONTAL_SCROLLBAR_AS_NEEDED.
+ *
+ * @param h the test harness to use
+ */
+ private void testHorizontalScrollbarAsNeeded(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
+ JPanel view = new JPanel();
+ view.setMinimumSize(new Dimension(100, 100));
+ sp.getViewport().add(view);
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height
+ + c[2].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height
+ + c[2].getMinimumSize().height));
+ }
+
+ /**
+ * Tests with HORIZONTAL_SCROLLBAR_NEVER.
+ *
+ * @param h the test harness to use
+ */
+ private void testHorizontalScrollbarNever(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
+ JPanel view = new JPanel();
+ view.setMinimumSize(new Dimension(100, 100));
+ sp.getViewport().add(view);
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ }
+
+ /**
+ * Tests with VERTICAL_SCROLLBAR_ALWAYS.
+ *
+ * @param h the test harness to use
+ */
+ private void testVerticalScrollbarAlways(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
+ JPanel view = new JPanel();
+ view.setMinimumSize(new Dimension(100, 100));
+ sp.getViewport().add(view);
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width
+ + c[1].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width
+ + c[1].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ }
+
+ /**
+ * Tests with VERTICAL_SCROLLBAR_AS_NEEDED.
+ *
+ * @param h the test harness to use
+ */
+ private void testVerticalScrollbarAsNeeded(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
+ JPanel view = new JPanel();
+ view.setMinimumSize(new Dimension(100, 100));
+ sp.getViewport().add(view);
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width
+ + c[1].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width
+ + c[1].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ }
+
+ /**
+ * Tests with VERTICAL_SCROLLBAR_NEVER.
+ *
+ * @param h the test harness to use
+ */
+ private void testVerticalScrollbarNever(TestHarness h)
+ {
+ JScrollPane sp = new JScrollPane();
+ ScrollPaneLayout l = (ScrollPaneLayout) sp.getLayout();
+ sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+ sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
+ JPanel view = new JPanel();
+ sp.getViewport().add(view);
+ view.setMinimumSize(new Dimension(100, 100));
+ Insets i = sp.getInsets();
+ Component[] c = sp.getComponents();
+ // Check ScrollPane size < view size.
+ sp.setSize(50, 50);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ // Check ScrollPane size > view size.
+ sp.setSize(150, 150);
+ h.check(l.minimumLayoutSize(sp),
+ new Dimension(i.left + i.right + c[0].getMinimumSize().width,
+ i.top + i.bottom + c[0].getMinimumSize().height));
+ }
+}