How to use multiple graphics on JFrame?
0
I have a JButton and when I click on this button it should draw a graph.
Peach p = new Peach();
MyGr Gr = new MyGr();
build = new JButton("Build graph");
build.setBounds(320,550,100,20);
build.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
add(Gr);
}
});
add(build);
add(p);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
And I have two graphics objects:
import javax.swing.*;
import java.awt.*;
public class Peach extends JPanel {
......
}
And my graph:
import javax.swing.*;
import java.awt.*;
public class MyGr extends JPanel {
int w = 200;
int h = 425;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = ( Graphics2D)g;
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.black);
Polygon p = new Polygon();
for (int x = -3; x < 4; x++) {
p.addPoint(w + 17 * x, h - 2* ((1) * x * x * x * x + 0 * x * x + (-1) * x * x + (5) * x - 10));
}
g2.drawPolyline(p.xpoints, p.ypoints, p.npoints);
}
}
Right now nothing happens
When I add content of MyGr to Peach class and use only Peach then it works fine, but I want to display a graph when I click on button
So, when I click this button, it should build a graph.
I don't understand why add(Gr); inside actionPerfomed doesn't work.
java swing jframe awt
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
add a comment |
0
I have a JButton and when I click on this button it should draw a graph.
Peach p = new Peach();
MyGr Gr = new MyGr();
build = new JButton("Build graph");
build.setBounds(320,550,100,20);
build.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
add(Gr);
}
});
add(build);
add(p);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
And I have two graphics objects:
import javax.swing.*;
import java.awt.*;
public class Peach extends JPanel {
......
}
And my graph:
import javax.swing.*;
import java.awt.*;
public class MyGr extends JPanel {
int w = 200;
int h = 425;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = ( Graphics2D)g;
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.black);
Polygon p = new Polygon();
for (int x = -3; x < 4; x++) {
p.addPoint(w + 17 * x, h - 2* ((1) * x * x * x * x + 0 * x * x + (-1) * x * x + (5) * x - 10));
}
g2.drawPolyline(p.xpoints, p.ypoints, p.npoints);
}
}
Right now nothing happens
When I add content of MyGr to Peach class and use only Peach then it works fine, but I want to display a graph when I click on button
So, when I click this button, it should build a graph.
I don't understand why add(Gr); inside actionPerfomed doesn't work.
java swing jframe awt
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
Side note: after adding a component (hereGr) to a container, you'll want to callrevalidate()andrepaint()on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are usingsetBoundswhich suggests use ofnulllayouts. If so, this is something that you really don't want to do.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
1
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then callingrepaint()on it
– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33
add a comment |
0
0
0
I have a JButton and when I click on this button it should draw a graph.
Peach p = new Peach();
MyGr Gr = new MyGr();
build = new JButton("Build graph");
build.setBounds(320,550,100,20);
build.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
add(Gr);
}
});
add(build);
add(p);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
And I have two graphics objects:
import javax.swing.*;
import java.awt.*;
public class Peach extends JPanel {
......
}
And my graph:
import javax.swing.*;
import java.awt.*;
public class MyGr extends JPanel {
int w = 200;
int h = 425;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = ( Graphics2D)g;
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.black);
Polygon p = new Polygon();
for (int x = -3; x < 4; x++) {
p.addPoint(w + 17 * x, h - 2* ((1) * x * x * x * x + 0 * x * x + (-1) * x * x + (5) * x - 10));
}
g2.drawPolyline(p.xpoints, p.ypoints, p.npoints);
}
}
Right now nothing happens
When I add content of MyGr to Peach class and use only Peach then it works fine, but I want to display a graph when I click on button
So, when I click this button, it should build a graph.
I don't understand why add(Gr); inside actionPerfomed doesn't work.
java swing jframe awt
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
I have a JButton and when I click on this button it should draw a graph.
Peach p = new Peach();
MyGr Gr = new MyGr();
build = new JButton("Build graph");
build.setBounds(320,550,100,20);
build.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
add(Gr);
}
});
add(build);
add(p);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
And I have two graphics objects:
import javax.swing.*;
import java.awt.*;
public class Peach extends JPanel {
......
}
And my graph:
import javax.swing.*;
import java.awt.*;
public class MyGr extends JPanel {
int w = 200;
int h = 425;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = ( Graphics2D)g;
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.black);
Polygon p = new Polygon();
for (int x = -3; x < 4; x++) {
p.addPoint(w + 17 * x, h - 2* ((1) * x * x * x * x + 0 * x * x + (-1) * x * x + (5) * x - 10));
}
g2.drawPolyline(p.xpoints, p.ypoints, p.npoints);
}
}
Right now nothing happens
When I add content of MyGr to Peach class and use only Peach then it works fine, but I want to display a graph when I click on button
So, when I click this button, it should build a graph.
I don't understand why add(Gr); inside actionPerfomed doesn't work.
java swing jframe awt
java swing jframe awt
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
edited Nov 18 '18 at 14:19
Andrew Thompson
153k27163338
153k27163338
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
asked Nov 18 '18 at 13:13
Anime KnightAnime Knight
75
75
The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
Side note: after adding a component (hereGr) to a container, you'll want to callrevalidate()andrepaint()on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are usingsetBoundswhich suggests use ofnulllayouts. If so, this is something that you really don't want to do.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
1
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then callingrepaint()on it
– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33
add a comment |
The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
Side note: after adding a component (hereGr) to a container, you'll want to callrevalidate()andrepaint()on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are usingsetBoundswhich suggests use ofnulllayouts. If so, this is something that you really don't want to do.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
1
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then callingrepaint()on it
– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33
The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
Side note: after adding a component (here
Gr) to a container, you'll want to call revalidate() and repaint() on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are using setBounds which suggests use of null layouts. If so, this is something that you really don't want to do.– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
Side note: after adding a component (here
Gr) to a container, you'll want to call revalidate() and repaint() on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are using setBounds which suggests use of null layouts. If so, this is something that you really don't want to do.– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
1
1
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then calling
repaint() on it– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then calling
repaint() on it– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33
add a comment |
0
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The best way to get us to fully and quickly understand your problem would be if you were to to create and post a minimal example program, a small but complete program that only has necessary code to demonstrate your problem, that we can copy, paste, compile and run without modification.
– Hovercraft Full Of Eels
Nov 18 '18 at 13:22
Side note: after adding a component (here
Gr) to a container, you'll want to callrevalidate()andrepaint()on the container to lay out the new component and then have the container redraw itself and all its parts. Also you are usingsetBoundswhich suggests use ofnulllayouts. If so, this is something that you really don't want to do.– Hovercraft Full Of Eels
Nov 18 '18 at 13:23
1
Based on your images, it appears that you may be going about your program wrong. Rather than adding new components to the graph-drawing GUI you should instead consider adding Shape objects to the a collection held by the current drawing JPanel, drawing them within its paintComponent and then calling
repaint()on it– Hovercraft Full Of Eels
Nov 18 '18 at 13:27
thank you,I will try then!
– Anime Knight
Nov 18 '18 at 13:33