150 lines
4.7 KiB
Java
150 lines
4.7 KiB
Java
/*
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* Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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import java.awt.Graphics;
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import java.awt.Rectangle;
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import javax.swing.JComponent;
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import javax.swing.JScrollPane;
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import javax.swing.JTable;
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import javax.swing.JViewport;
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import javax.swing.table.AbstractTableModel;
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import javax.swing.table.DefaultTableCellRenderer;
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import javax.swing.table.TableCellRenderer;
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import javax.swing.table.TableModel;
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import javax.swing.SwingUtilities;
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public class TableScrollTest extends AbstractSwingTest {
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static JTable table;
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TableScroller tableScroller;
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JScrollPane scroller;
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static boolean backingStoreEnabled = true;
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static int rendererCount = 0;
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public JComponent getTestComponent() {
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TableModel model = new AbstractTableModel() {
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String[] data = { "1", "2", "3", "4", "5", "6",
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"8", "9", "10", "11" };
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public int getColumnCount() { return 10;}
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public int getRowCount() { return 1000;}
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public Object getValueAt(int row, int col) {
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return data[(row*col)%data.length];
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}
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};
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table = new CountTable(model);
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scroller = new JScrollPane(table);
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tableScroller = new TableScroller(table, 1);
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return scroller;
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}
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public String getTestName() {
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return "Table Scroll";
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}
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public void runTest() {
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for (int i = 0; i < 200; i++) {
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try {
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SwingUtilities.invokeLater( tableScroller );
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rest();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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@SuppressWarnings("deprecation")
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public static void main(String[] args) {
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if (args.length > 0) {
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if (args[0].equals("-bs=off")) {
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backingStoreEnabled = false;
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System.out.println("BackingStore is off");
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}
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}
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runStandAloneTest(new TableScrollTest());
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System.out.println("Renderer painted :" + rendererCount);
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System.out.println( "Backing store is:" + ((JViewport)table.getParent()).isBackingStoreEnabled() );
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}
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class TableScroller implements Runnable {
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JTable table;
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int scrollAmount = 1;
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int currentVis = 10;
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public TableScroller(JTable tableToScroll, int scrollBy) {
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table = tableToScroll;
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scrollAmount = scrollBy;
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}
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public void run() {
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int ensureToSeeRow = currentVis += scrollAmount;
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Rectangle cellBound = table.getCellRect(ensureToSeeRow, 0, true);
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table.scrollRectToVisible(cellBound);
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}
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}
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static class CountRenderer extends DefaultTableCellRenderer {
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public void paint(Graphics g) {
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super.paint(g);
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TableScrollTest.rendererCount++;
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}
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}
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class CountTable extends JTable {
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TableCellRenderer rend = new CountRenderer();
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public CountTable(TableModel tm) {
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super(tm);
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}
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public void paint(Graphics g) {
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super.paint(g);
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paintCount++;
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}
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public TableCellRenderer getCellRenderer(int row, int column) {
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return rend;
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}
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@SuppressWarnings("deprecation")
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public void addNotify() {
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super.addNotify();
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((JViewport)getParent()).setBackingStoreEnabled(backingStoreEnabled);
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}
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}
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}
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