Hi!
I have the following problem. I have a string and my task is to be able to draw every character of the string in every rectangle. For example I have a string:
String = ("GCATCGCAGAGAGT");
So now I will have 14 characters inside 14 rectangles. My question is how to do that? Please help me to solve it.
This is my code. There's still error in it. It can not show the rectangle and also the characters. Could you fix my code? I am still a beginner in this field
I am sorry if my code is not formatted as well, because I am a new comer in this forum. So please help me to solve my problem, I expecting a lot from you.
/** Here is my code **/
package brute_force;
import javax.swing.*;
import javax.swing.border.Border;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
/*
* BorderLayoutDemo.java
*
*/
public class BruteForceAnimation4 extends JPanel{
/** Variable for drawing character inside rectangle **/
private String[] mSourceString = {"G","C","A","T","C","G","C","A","G","A","G","A","G","T"};
private String[] mPatternString = {"G","C","A","G","A","G","A","G"};
/** This is variables to draw the rectangle **/
private int xPosSource = 40;
private int yPosSource = 100;
private int xPosPattern = 80;
private int yPosPattern = 80;
/** constants for predefined colors */
private static final Color lightBlue = new Color(153, 204, 255);
public BruteForceAnimation4()
{
super();
}
public static void addComponentsToPane(Container pane) {
JLabel lblTitle = new JLabel("Brute Force String Searching
Algorithm", SwingConstants.CENTER);
String bruteForceCode[] = {
"int count = 0",//0
"int m= mPattern.length();", //1
"int n= mSource .length();",//2
"outer:",//3
"for (int i = 0; i <= n - m; ++i) {", //4
"for (int k = 0; k < m; ++k) {",//5
"if (mPattern.charAt(k) != mSource.charAt(i + k)) {",//6
"continue outer;", //7
" }", //8
" }",//9
"++count;",//10
"}", //11
"return count;",//12
"}" //13
};
JList list = new JList(bruteForceCode); // a container for pseud code
JButton cmdRun = new JButton("Run");
JButton cmdStep = new JButton("Step");
//Set the title of the applet
lblTitle.setFont(new Font("Serif", Font.BOLD, 18));
JPanel buttons = new JPanel();
buttons.add(cmdRun);
buttons.add(cmdStep);
buttons.setBackground(lightBlue);
//Set the size and border of list (JList component)
Border etch = BorderFactory.createEtchedBorder();
list.setBorder(BorderFactory.createTitledBorder(etch, "Brute Force
Code"));
JPanel listPanel = new JPanel();
listPanel.add(list);
listPanel.setBackground(lightBlue);
list.setBackground(lightBlue);
BruteForceAnimation4 border = new BruteForceAnimation4();
pane.add(lblTitle, BorderLayout.NORTH);
pane.add(border, BorderLayout.CENTER);
pane.add(listPanel, BorderLayout.EAST);
pane.add(buttons, BorderLayout.SOUTH);
pane.setBackground(lightBlue);
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
setBackground(lightBlue);
drawSourceString(g2, mSourceString);
}
/** this is the method to draw character inside rectangles **/
/** but it still wrong **/
public void drawSourceString(Graphics2D g2,String[] mSource)
{
if (mSource == null)
{
return;
}
for (int i=0; i < mSource.length; i++)
{
g2.drawRect(xPosSource, yPosSource, 60, 40);
g2.drawString(mSource,40,40);
xPosSource += 30;
}
//This is to count the length of the the Source
System.out.println("Your length" +mSource.length);
}
public static void main(String[] args) {
//Create and set up the window.
JFrame frame = new JFrame("Brute Force Algorithm");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Set up the content pane.
addComponentsToPane(frame.getContentPane());
//Use the content pane's default BorderLayout. No need for
//setLayout(new BorderLayout());
//Display the window.
frame.pack();
frame.setSize(800, 600);
frame.setVisible(true);
}
}
import java.awt.*;
import java.awt.font.*;
import javax.swing.*;
import javax.swing.border.Border;
public class BFA4 extends JPanel {
private String[] mSourceString = {
"G","C","A","T","C","G","C","A","G","A","G","A","G","T"
};
private String[] mPatternString = {"G","C","A","G","A","G","A","G"};
private static final Color lightBlue = new Color(153, 204, 255);
public BFA4() {
super();
setBackground(lightBlue);
}
public static void addComponentsToPane(Container pane) {
JLabel lblTitle = new JLabel("Brute Force String Searching " +
"Algorithm", SwingConstants.CENTER);
String[] bruteForceCode = {
"int count = 0",//0
"int m = mPattern.length();",//1
"int n = mSource .length();",//2
"outer:",//3
" for (int i = 0; i <= n - m; ++i) {",//4
" for (int k = 0; k < m; ++k) {",//5
" if (mPattern.charAt(k) != mSource.charAt(i + k)) {",//6
" continue outer;", //7
" }",//8
" }",//9
" ++count;", //10
" }",//11
" return count;",//12
"}"//13
};
JList list = new JList(bruteForceCode); // a container for pseud code
JButton cmdRun = new JButton("Run");
JButton cmdStep = new JButton("Step");
lblTitle.setFont(new Font("Serif", Font.BOLD, 18));
JPanel buttons = new JPanel();
buttons.add(cmdRun);
buttons.add(cmdStep);
buttons.setBackground(lightBlue);
//Set the size and border of list (JList component)
Border etch = BorderFactory.createEtchedBorder();
list.setBorder(BorderFactory.createTitledBorder(etch, "Brute Force Code"));
JPanel listPanel = new JPanel();
listPanel.add(list);
listPanel.setBackground(lightBlue);
list.setBackground(lightBlue);
BFA4 border = new BFA4();
pane.add(lblTitle, BorderLayout.NORTH);
pane.add(border, BorderLayout.CENTER);
pane.add(listPanel, BorderLayout.EAST);
pane.add(buttons, BorderLayout.SOUTH);
pane.setBackground(lightBlue);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
// set this in the class constructor, not here
//setBackground(lightBlue);
drawSourceString(g2, mSourceString);
}
public void drawSourceString(Graphics2D g2,String[] mSource) {
if (mSource == null) {
return;
}
Font font = g2.getFont().deriveFont(14f);
g2.setFont(font);
FontRenderContext frc = g2.getFontRenderContext();
LineMetrics lm = font.getLineMetrics(mSource[0], frc);
float height = lm.getAscent() + lm.getDescent();
int x0 = 20;
int xPad = 5;
int yPad = 50;
int y = yPad;
int w = 15;
int h = 20;
float sy = y + (h + height)/2 - lm.getDescent();
for (int j=0; j < mSource.length; j++) {
int x = x0 + j*(w + xPad);
g2.drawRect(x, y, w, h);
float width = (float)font.getStringBounds(mSource[j], frc).getWidth();
float sx = x + (w - width)/2;
g2.drawString(mSource[j], sx, sy);
}
//This is to count the length of the the Source
System.out.println("Your length" +mSource.length);
}
public static void main(String[] args) {
JFrame frame = new JFrame("Brute Force Algorithm");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
addComponentsToPane(frame.getContentPane());
frame.pack();
frame.setSize(800, 600);
frame.setVisible(true);
}
}
Here's a short elegant solution for you.
If you like my answer, please give me your Duke Dollars. ;-)
#
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class StringRectPaintPanel extends JPanel {
private String s;
public StringRectPaintPanel(String s) {
this.s = s;
}
public void paint(Graphics g) {
FontMetrics fm = getFontMetrics(getFont());
int iX = 50;
int iY = 50;
for (int i=0; i<this.s.length(); i++) {
char c = s.charAt(i);
int h = fm.getHeight();
int w = fm.charWidth(c);
g.drawRect(iX, iY, w, h);
g.drawString(String.valueOf(c), iX, iY+h);
iX = iX + w;
}
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new StringRectPaintPanel("GCATCGCAGAGAGT"));
frame.setSize(500,300);
frame.setVisible(true);
}
}
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