src/share/demo/applets/BarChart/BarChart.java - toolchain/jdk/jdk9_jdk - Git at Google

 /*
  * Copyright (c) 1997, 2006, Oracle and/or its affiliates. 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 Oracle 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;
     }
 }
	/*
	* Copyright (c) 1997, 2006, Oracle and/or its affiliates. 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 Oracle 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;
	}
	}