/* setScrollPosition.java
Copyright (C) 2006
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: JDK1.4
package gnu.testlet.java.awt.ScrollPane;
import java.awt.Button;
import java.awt.Point;
import java.awt.ScrollPane;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
public class setScrollPosition implements Testlet
{
public void test(TestHarness harness)
{
test1(harness);
test2(harness);
test3(harness);
test4(harness);
test5(harness);
}
public void test1(TestHarness harness)
{
ScrollPane pane = new ScrollPane();
// Check that NPE is thrown when scrollpane does have a child.
boolean fail = false;
try
{
pane.setScrollPosition(0, 0);
}
catch (NullPointerException e)
{
fail = true;
}
harness.check(fail);
}
public void test2(TestHarness harness)
{
ScrollPane pane = new ScrollPane();
// Add a component (i.e. child) to the scrollpane.
Button button = new Button();
pane.add(button);
harness.check(pane.getComponentCount(), 1);
harness.check(pane.getComponent(0), button);
// Check default scroll position.
harness.check(pane.getScrollPosition(), new Point());
}
public void test3(TestHarness harness)
{
ScrollPane pane = new ScrollPane();
pane.add(new Button());
// Check that setScrollPosition(int, int) and
// setScrollPosition(Point) return the same values.
pane.setScrollPosition(1, 1);
harness.check(pane.getScrollPosition(), new Point(0, 0));
pane.setScrollPosition(new Point(1, 1));
harness.check(pane.getScrollPosition(), new Point(0, 0));
}
public void test4(TestHarness harness)
{
ScrollPane pane = new ScrollPane();
pane.add(new Button());
// Check that if x or y < 0, x and y are set to 0.
pane.setScrollPosition(-1, -1);
harness.check(pane.getScrollPosition(), new Point());
pane.setScrollPosition(0, 0);
harness.check(pane.getScrollPosition(), new Point());
}
public void test5(TestHarness harness)
{
ScrollPane pane = new ScrollPane();
Button button = new Button();
button.setSize(100, 100);
pane.add(button);
harness.check(pane.getComponent(0).getWidth(), 100);
harness.check(pane.getComponent(0).getHeight(), 100);
harness.check(pane.getViewportSize().getWidth(), 100);
harness.check(pane.getViewportSize().getHeight(), 100);
// Check that if x > (child's width - viewport width),
// then x is set to (child's width - viewport width) and
// that if y > (child's height - viewport height),
// then y is set to (child's height o veiwport height).
int x = 100;
int y = 100;
int tempx = (int) (pane.getComponent(0).getWidth() -
pane.getViewportSize().getWidth());
int tempy = (int) (pane.getComponent(0).getHeight() -
pane.getViewportSize().getHeight());
harness.check(tempx < x);
harness.check(tempy < y);
pane.setScrollPosition(x, y);
harness.check(pane.getScrollPosition().getX(), tempx);
harness.check(pane.getScrollPosition().getY(), tempy);
}
}