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/* createChild.java -- some checks for the createChild() method
in the Raster class.
Copyright (C) 2006 Francis Kung <fkung@redhat.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: JDK1.4
// Uses: MyRaster
package gnu.testlet.java.awt.image.Raster;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.awt.Point;
import java.awt.image.DataBuffer;
import java.awt.image.Raster;
import java.awt.image.RasterFormatException;
import java.awt.image.SinglePixelPackedSampleModel;
import java.awt.image.WritableRaster;
public class createChild implements Testlet
{
public void test(TestHarness harness)
{
testData(harness);
testBounds(harness);
testBands(harness);
}
private void testData(TestHarness harness)
{
Raster rst = createRaster(harness);
// Child raster
Raster rst2 = rst.createChild(10, 20, 25, 15, 0, 0, null);
harness.check(!(rst2 instanceof WritableRaster));
harness.check(rst2.getMinX(), 0);
harness.check(rst2.getMinY(), 0);
harness.check(rst2.getWidth(), 25);
harness.check(rst2.getHeight(), 15);
for (int x = 0; x < 25; x++)
for (int y = 0; y < 15; y++)
for (int b = 0; b < 3; b++)
harness.check(rst2.getSample(x, y, b), x+10 + y+20 + b);
// Offset child
rst2 = rst.createChild(10, 20, 25, 15, 30, 40, null);
harness.check(rst2.getMinX(), 30);
harness.check(rst2.getMinY(), 40);
harness.check(rst2.getWidth(), 25);
harness.check(rst2.getHeight(), 15);
for (int x = 30; x < 55; x++)
for (int y = 40; y < 55; y++)
for (int b = 0; b < 3; b++)
harness.check(rst2.getSample(x, y, b), x-20 + y-20 + b);
}
private void testBounds(TestHarness harness)
{
Raster rst = createRaster(harness);
// Width and height out of bounds
try
{
rst.createChild(10, 20, 100, 100, 0, 0, null);
harness.check(false);
}
catch (RasterFormatException ex)
{
harness.check(true);
}
catch (Exception ex)
{
harness.check(false);
}
// MinX and MinY out of bounds
try
{
// Create child with non-zero minX and minY
Raster rst2 = rst.createChild(0, 0, 25, 25, 30, 30, null);
// Create child's child with minX and minY out of bounds
rst2.createChild(10, 20, 10, 10, 0, 0, null);
harness.check(false);
}
catch (RasterFormatException ex)
{
harness.check(true);
}
catch (Exception ex)
{
harness.check(false);
}
}
private void testBands(TestHarness harness)
{
Raster rst = createRaster(harness);
// Copy all bands
Raster rst2 = rst.createChild(0, 0, 50, 40, 0, 0, null);
harness.check(rst2.getNumBands(), rst.getNumBands());
// Only first two bands
rst2 = rst.createChild(0, 0, 50, 40, 0, 0, new int[]{0, 1});
harness.check(rst2.getNumBands(), 2);
for (int x = 0; x < 50; x++)
for (int y = 0; y < 40; y++)
for (int b = 0; b < 2; b++)
harness.check(rst2.getSample(x, y, b), x+y+b);
// Only last two bands
rst2 = rst.createChild(0, 0, 50, 40, 0, 0, new int[]{1, 2});
harness.check(rst2.getNumBands(), 2);
for (int x = 0; x < 50; x++)
for (int y = 0; y < 40; y++)
for (int b = 0; b < 2; b++)
harness.check(rst2.getSample(x, y, b), x+y+b+1);
// Only middle band
rst2 = rst.createChild(0, 0, 50, 40, 0, 0, new int[]{1});
harness.check(rst2.getNumBands(), 1);
for (int x = 0; x < 50; x++)
for (int y = 0; y < 40; y++)
harness.check(rst2.getSample(x, y, 0), x+y+1);
// Reverse order of bands
rst2 = rst.createChild(0, 0, 50, 40, 0, 0, new int[]{2, 0});
harness.check(rst2.getNumBands(), 2);
for (int x = 0; x < 50; x++)
for (int y = 0; y < 40; y++)
{
harness.check(rst2.getSample(x, y, 0), x+y+2);
harness.check(rst2.getSample(x, y, 1), x+y);
}
}
private Raster createRaster(TestHarness harness)
{
// Create initial raster
WritableRaster rst = Raster.createWritableRaster(new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT,
50, 40,
new int[]{0xff0000, 0xff00, 0xff}),
new Point(0, 0));
// Fill with test data
for (int x = 0; x < 50; x++)
for (int y = 0; y < 40; y++)
for (int b = 0; b < 3; b++)
rst.setSample(x, y, b, x+y+b);
// Get non-writable version with the same data
Raster rst2 = new MyRaster(rst.getSampleModel(),
rst.getDataBuffer(),
new Point(0, 0));
harness.check(!(rst2 instanceof WritableRaster));
return rst2;
}
}
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