--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/demo/applets/BarChart/BarChart.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,313 @@
+/*
+ * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems 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 COPYRIGHT OWNER 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.
+ */
+
+/*
+ */
+
+import java.awt.*;
+
+/**
+ * A simple bar chart demo
+ * @author Sami Shaio
+ * @modified 06/21/00 Daniel Peek : refactored, comments
+ */
+public class BarChart extends java.applet.Applet {
+ private static final int VERTICAL = 0;
+ private static final int HORIZONTAL = 1;
+
+ private static final int SOLID = 0;
+ private static final int STRIPED = 1;
+
+ private int orientation;
+ private String title;
+ private Font font;
+ private FontMetrics metrics;
+ private int fontHeight = 15;
+ private int columns;
+ private int values[];
+ private Color colors[];
+ private String labels[];
+ private int styles[];
+ private int scale = 10;
+ private int maxLabelWidth = 0;
+ private int barSpacing = 10;
+ private int maxValue = 0;
+
+ public void init() {
+
+ getSettings();
+
+ values = new int[columns];
+ labels = new String[columns];
+ styles = new int[columns];
+ colors = new Color[columns];
+
+ for (int i=0; i < columns; i++) {
+ parseValue(i);
+ parseLabel(i);
+ parseStyle(i);
+ parseColor(i);
+ }
+ }
+
+ private void getSettings() {
+ font = new java.awt.Font("Monospaced", Font.BOLD, 12);
+ metrics = getFontMetrics(font);
+
+ title = getParameter("title");
+ if (title == null) {
+ title = "Chart";
+ }
+
+ String temp = getParameter("columns");
+ if (temp == null) {
+ columns = 5;
+ } else {
+ columns = Integer.parseInt(temp);
+ }
+
+ temp = getParameter("scale");
+ if (temp == null) {
+ scale = 10;
+ } else {
+ scale = Integer.parseInt(temp);
+ }
+
+ temp = getParameter("orientation");
+ if (temp == null) {
+ orientation = VERTICAL;
+ } else if (temp.equalsIgnoreCase("horizontal")) {
+ orientation = HORIZONTAL;
+ } else {
+ orientation = VERTICAL;
+ }
+ }
+
+ private void parseValue(int i) {
+ String temp = getParameter("C" + (i+1));
+ try {
+ values[i] = Integer.parseInt(temp);
+ } catch (NumberFormatException e) {
+ values[i] = 0;
+ } catch (NullPointerException e) {
+ values[i] = 0;
+ }
+ maxValue = Math.max(maxValue, values[i]);
+ }
+
+ private void parseLabel(int i) {
+ String temp = getParameter("C" + (i+1) + "_label");
+ if (temp==null) {
+ labels[i] = "";
+ } else {
+ labels[i] = temp;
+ }
+ maxLabelWidth = Math.max(metrics.stringWidth
+ ((String) (labels[i])), maxLabelWidth);
+ }
+
+ private void parseStyle(int i) {
+ String temp = getParameter("C" + (i+1) + "_style");
+ if (temp == null || temp.equalsIgnoreCase("solid")) {
+ styles[i] = SOLID;
+ } else if (temp.equalsIgnoreCase("striped")) {
+ styles[i] = STRIPED;
+ } else {
+ styles[i] = SOLID;
+ }
+ }
+
+ private void parseColor(int i) {
+ String temp = getParameter("C" + (i+1) + "_color");
+ if (temp != null) {
+ temp = temp.toLowerCase();
+ if (temp.equals("red")) {
+ colors[i] = Color.red;
+ } else if (temp.equals("green")) {
+ colors[i] = Color.green;
+ } else if (temp.equals("blue")) {
+ colors[i] = Color.blue;
+ } else if (temp.equals("pink")) {
+ colors[i] = Color.pink;
+ } else if (temp.equals("orange")) {
+ colors[i] = Color.orange;
+ } else if (temp.equals("magenta")) {
+ colors[i] = Color.magenta;
+ } else if (temp.equals("cyan")) {
+ colors[i] = Color.cyan;
+ } else if (temp.equals("white")) {
+ colors[i] = Color.white;
+ } else if (temp.equals("yellow")) {
+ colors[i] = Color.yellow;
+ } else if (temp.equals("gray")) {
+ colors[i] = Color.gray;
+ } else if (temp.equals("darkgray")) {
+ colors[i] = Color.darkGray;
+ } else {
+ colors[i] = Color.gray;
+ }
+ } else {
+ colors[i] = Color.gray;
+ }
+ }
+
+ public void paint(Graphics g) {
+ // draw the title centered at the bottom of the bar graph
+ g.setColor(Color.black);
+ g.setFont(font);
+
+ g.drawRect(0, 0, getSize().width - 1, getSize().height - 1);
+
+ int titleWidth = metrics.stringWidth(title);
+ int cx = Math.max((getSize().width - titleWidth) / 2, 0);
+ int cy = getSize().height - metrics.getDescent();
+ g.drawString(title, cx, cy);
+
+ // draw the bars and their titles
+ if(orientation == HORIZONTAL) {
+ paintHorizontal(g);
+ } else { // VERTICAL
+ paintVertical(g);
+ }
+ }
+
+ private void paintHorizontal(Graphics g) {
+ // x and y coordinates to draw/write to
+ int cx, cy;
+ int barHeight = metrics.getHeight();
+
+ for (int i = 0; i < columns; i++) {
+
+ // set the X coordinate for this bar and label and center it
+ int widthOfItems = maxLabelWidth + 3 + (maxValue * scale) + 5
+ + metrics.stringWidth(Integer.toString(maxValue));
+ cx = Math.max((getSize().width - widthOfItems) / 2, 0);
+
+ // set the Y coordinate for this bar and label
+ cy = getSize().height - metrics.getDescent() - metrics.getHeight()
+ - barSpacing - ((columns - i - 1) * (barSpacing + barHeight));
+
+ // draw the label
+ g.setColor(Color.black);
+ g.drawString(labels[i], cx, cy);
+ cx += maxLabelWidth + 3;
+
+
+ // draw the shadow
+ g.fillRect(cx + 4, cy - barHeight + 4,
+ (values[i] * scale), barHeight);
+
+ // draw the bar
+ g.setColor(colors[i]);
+ if (styles[i] == STRIPED) {
+ for (int k = 0; k <= values[i] * scale; k += 2) {
+ g.drawLine(cx + k, cy - barHeight, cx + k, cy);
+ }
+ } else { // SOLID
+ g.fillRect(cx, cy - barHeight,
+ (values[i] * scale) + 1, barHeight + 1);
+ }
+ cx += (values[i] * scale) + 4;
+
+ // draw the value at the end of the bar
+ g.setColor(g.getColor().darker());
+ g.drawString(Integer.toString(values[i]), cx, cy);
+ }
+ }
+
+ private void paintVertical(Graphics g) {
+ int barWidth = maxLabelWidth;
+
+ for (int i = 0; i < columns; i++) {
+
+ // X coordinate for this label and bar (centered)
+ int widthOfItems = (barWidth + barSpacing) * columns - barSpacing;
+ int cx = Math.max((getSize().width - widthOfItems) / 2, 0);
+ cx += (maxLabelWidth + barSpacing) * i;
+
+ // Y coordinate for this label and bar
+ int cy = getSize().height - metrics.getHeight()
+ - metrics.getDescent() - 4;
+
+ // draw the label
+ g.setColor(Color.black);
+ g.drawString(labels[i], cx, cy);
+ cy -= metrics.getHeight() - 3;
+
+ // draw the shadow
+ g.fillRect(cx + 4, cy - (values[i] * scale) - 4,
+ barWidth, (values[i] * scale));
+
+ // draw the bar
+ g.setColor(colors[i]);
+ if (styles[i] == STRIPED) {
+ for (int k=0; k <= values[i] * scale; k+=2) {
+ g.drawLine(cx, cy - k,
+ cx + barWidth, cy - k);
+ }
+ } else {
+ g.fillRect(cx, cy - (values[i] * scale),
+ barWidth + 1, (values[i] * scale) + 1);
+ }
+ cy -= (values[i] * scale) + 5;
+
+ // draw the value on top of the bar
+ g.setColor(g.getColor().darker());
+ g.drawString(Integer.toString(values[i]), cx, cy);
+ }
+ }
+
+ public String getAppletInfo() {
+ return "Title: Bar Chart \n"
+ + "Author: Sami Shaio \n"
+ + "A simple bar chart demo.";
+ }
+
+ public String[][] getParameterInfo() {
+ String[][] info = {
+ {"title", "string", "The title of bar graph. Default is 'Chart'"},
+ {"scale", "int", "The scale of the bar graph. Default is 10."},
+ {"columns", "int", "The number of columns/rows. Default is 5."},
+ {"orientation", "{VERTICAL, HORIZONTAL}",
+ "The orienation of the bar graph. Default is VERTICAL."},
+ {"c#", "int", "Subsitute a number for #. "
+ + "The value/size of bar #. Default is 0."},
+ {"c#_label", "string", "The label for bar #. "
+ + "Default is an empty label."},
+ {"c#_style", "{SOLID, STRIPED}", "The style of bar #. "
+ + "Default is SOLID."},
+ {"c#_color", "{RED, GREEN, BLUE, PINK, ORANGE, MAGENTA, CYAN, "
+ + "WHITE, YELLOW, GRAY, DARKGRAY}",
+ "The color of bar #. Default is GRAY."}
+ };
+ return info;
+ }
+}