/*
* For work developed by the HSQL Development Group:
*
* Copyright (c) 2001-2010, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*
* For work originally developed by the Hypersonic SQL Group:
*
* Copyright (c) 1995-2000, The Hypersonic SQL Group.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the Hypersonic SQL Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE HYPERSONIC SQL GROUP,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Hypersonic SQL Group.
*/
package org.hsqldb.util;
import java.util.Vector;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Event;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Panel;
import java.awt.Scrollbar;
import java.awt.SystemColor;
import java.awt.Toolkit;
/**
*
* @author Thomas Mueller (Hypersonic SQL Group)
* @version 1.7.0
* @since Hypersonic SQL
*/
class Tree extends Panel {
// static
private static Font fFont;
private static FontMetrics fMetrics;
private static int iRowHeight;
private static int iIndentWidth;
private int iMaxTextLength;
// drawing
private Dimension dMinimum;
private Graphics gImage;
private Image iImage;
// height / width
private int iWidth, iHeight;
private int iFirstRow;
private int iTreeWidth, iTreeHeight;
private int iX, iY;
// data
private Vector vData;
private int iRowCount;
// scrolling
private Scrollbar sbHoriz, sbVert;
private int iSbWidth, iSbHeight;
static {
fFont = new Font("Dialog", Font.PLAIN, 12);
fMetrics = Toolkit.getDefaultToolkit().getFontMetrics(fFont);
iRowHeight = getMaxHeight(fMetrics);
iIndentWidth = 12;
}
/**
* Constructor declaration
*
*/
Tree() {
super();
vData = new Vector();
setLayout(null);
sbHoriz = new Scrollbar(Scrollbar.HORIZONTAL);
add(sbHoriz);
sbVert = new Scrollbar(Scrollbar.VERTICAL);
add(sbVert);
}
/**
* Method declaration
*
*
* @param d
*/
public void setMinimumSize(Dimension d) {
dMinimum = d;
}
/**
* Method declaration
*
*
* @param x
* @param y
* @param w
* @param h
*/
// fredt@users 20011210 - patch 450412 by elise@users
// with additional replacement of deprecated methods
public void setBounds(int x, int y, int w, int h) {
super.setBounds(x, y, w, h);
iSbHeight = sbHoriz.getPreferredSize().height;
iSbWidth = sbVert.getPreferredSize().width;
iHeight = h - iSbHeight;
iWidth = w - iSbWidth;
sbHoriz.setBounds(0, iHeight, iWidth, iSbHeight);
sbVert.setBounds(iWidth, 0, iSbWidth, iHeight);
adjustScroll();
iImage = null;
repaint();
}
/**
* Method declaration
*
*/
public void removeAll() {
vData = new Vector();
iRowCount = 0;
adjustScroll();
iMaxTextLength = 10;
repaint();
}
/**
* Method declaration
*
*
* @param key
* @param value
* @param state
* @param color
*/
public void addRow(String key, String value, String state, int color) {
String[] row = new String[4];
if (value == null) {
value = "";
}
row[0] = key;
row[1] = value;
row[2] = state; // null / "-" / "+"
row[3] = String.valueOf(color);
vData.addElement(row);
int len = fMetrics.stringWidth(value);
if (len > iMaxTextLength) {
iMaxTextLength = len;
}
iRowCount++;
}
/**
* Method declaration
*
*
* @param key
* @param value
*/
public void addRow(String key, String value) {
addRow(key, value, null, 0);
}
/**
* Method declaration
*
*/
public void update() {
adjustScroll();
repaint();
}
/**
* Method declaration
*
*/
void adjustScroll() {
iTreeHeight = iRowHeight * (iRowCount + 1);
// correct would be iMaxTextLength + iMaxIndent*iIndentWidth
iTreeWidth = iMaxTextLength * 2;
sbHoriz.setValues(iX, iWidth, 0, iTreeWidth);
int v = iY / iRowHeight,
h = iHeight / iRowHeight;
sbVert.setValues(v, h, 0, iRowCount + 1);
iX = sbHoriz.getValue();
iY = iRowHeight * sbVert.getValue();
}
/**
* Method declaration
*
*
* @param e
*/
// fredt@users 20020130 - comment by fredt
// to remove this deprecated method we need to rewrite the Tree class as a
// ScrollPane component
public boolean handleEvent(Event e) {
switch (e.id) {
case Event.SCROLL_LINE_UP :
case Event.SCROLL_LINE_DOWN :
case Event.SCROLL_PAGE_UP :
case Event.SCROLL_PAGE_DOWN :
case Event.SCROLL_ABSOLUTE :
iX = sbHoriz.getValue();
iY = iRowHeight * sbVert.getValue();
repaint();
return true;
}
return super.handleEvent(e);
}
/**
* Method declaration
*
*
* @param g
*/
public void paint(Graphics g) {
if (g == null || iWidth <= 0 || iHeight <= 0) {
return;
}
g.setColor(SystemColor.control);
g.fillRect(iWidth, iHeight, iSbWidth, iSbHeight);
if (iImage == null) {
iImage = createImage(iWidth, iHeight);
gImage = iImage.getGraphics();
gImage.setFont(fFont);
}
gImage.setColor(Color.white);
gImage.fillRect(0, 0, iWidth, iHeight);
int[] lasty = new int[100];
String[] root = new String[100];
root[0] = "";
int currentindent = 0;
int y = iRowHeight;
y -= iY;
boolean closed = false;
for (int i = 0; i < iRowCount; i++) {
String[] s = (String[]) vData.elementAt(i);
String key = s[0];
String data = s[1];
String folder = s[2];
int ci = currentindent;
for (; ci > 0; ci--) {
if (key.startsWith(root[ci])) {
break;
}
}
if (root[ci].length() < key.length()) {
ci++;
}
if (closed && ci > currentindent) {
continue;
}
closed = folder != null && folder.equals("+");
root[ci] = key;
int x = iIndentWidth * ci - iX;
gImage.setColor(Color.lightGray);
gImage.drawLine(x, y, x + iIndentWidth, y);
gImage.drawLine(x, y, x, lasty[ci]);
lasty[ci + 1] = y;
int py = y + iRowHeight / 3;
int px = x + iIndentWidth * 2;
if (folder != null) {
lasty[ci + 1] += 4;
int rgb = Integer.parseInt(s[3]);
gImage.setColor(rgb == 0 ? Color.white
: new Color(rgb));
gImage.fillRect(x + iIndentWidth - 3, y - 3, 7, 7);
gImage.setColor(Color.black);
gImage.drawRect(x + iIndentWidth - 4, y - 4, 8, 8);
gImage.drawLine(x + iIndentWidth - 2, y,
x + iIndentWidth + 2, y);
if (folder.equals("+")) {
gImage.drawLine(x + iIndentWidth, y - 2,
x + iIndentWidth, y + 2);
}
} else {
px -= iIndentWidth;
}
gImage.setColor(Color.black);
gImage.drawString(data, px, py);
currentindent = ci;
y += iRowHeight;
}
g.drawImage(iImage, 0, 0, this);
}
/**
* Method declaration
*
*
* @param g
*/
public void update(Graphics g) {
paint(g);
}
/**
* Method declaration
*/
public Dimension preferredSize() {
return dMinimum;
}
/**
* Method declaration
*/
public Dimension getPreferredSize() {
return dMinimum;
}
/**
* Method declaration
*/
public Dimension getMinimumSize() {
return dMinimum;
}
/**
* Method declaration
*/
public Dimension minimumSize() {
return dMinimum;
}
/**
* Method declaration
*
*
* @param e
* @param x
* @param y
*/
public boolean mouseDown(Event e, int x, int y) {
if (iRowHeight == 0 || x > iWidth || y > iHeight) {
return true;
}
y += iRowHeight / 2;
String[] root = new String[100];
root[0] = "";
int currentindent = 0;
int cy = iRowHeight;
boolean closed = false;
int i = 0;
y += iY;
for (; i < iRowCount; i++) {
String[] s = (String[]) vData.elementAt(i);
String key = s[0];
String folder = s[2];
int ci = currentindent;
for (; ci > 0; ci--) {
if (key.startsWith(root[ci])) {
break;
}
}
if (root[ci].length() < key.length()) {
ci++;
}
if (closed && ci > currentindent) {
continue;
}
if (cy <= y && cy + iRowHeight > y) {
break;
}
root[ci] = key;
closed = folder != null && folder.equals("+");
currentindent = ci;
cy += iRowHeight;
}
if (i >= 0 && i < iRowCount) {
String[] s = (String[]) vData.elementAt(i);
String folder = s[2];
if (folder != null && folder.equals("+")) {
folder = "-";
} else if (folder != null && folder.equals("-")) {
folder = "+";
}
s[2] = folder;
vData.setElementAt(s, i);
repaint();
}
return true;
}
/**
* Method declaration
*
*
* @param f
*/
private static int getMaxHeight(FontMetrics f) {
return f.getHeight() + 2;
}
}