GraphicsEnvironment has a method which returns the maximum available size, accounting all taskbars etc. no matter where they are aligned: GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds() Note: On multi-monitor systems, getMaximumWindowBounds() returns the bounds of the entire display area. To get the usable bounds of a single display, use GraphicsConfiguration.getBounds() and Toolkit.getScreenInsets() as shown in other answers.
Remove the border like so: button.setBorder(BorderFactory.createEmptyBorder()); and then also the contents1: button.setContentAreaFilled(false); 1: Taken from the solution added to the question by @3sdmx
but when i run it i get this: You get an empty screen because you add the components to the frame after the frame is visible. As has already been suggested you need to use an appropriate layout manager. FlowLayout is the easiest to start with. invoke setVisible(true) AFTER adding the components to the frame. … Read more
Consider using a JList for the right panel to take advantage of the flexible layout options and selection handling, as shown here and below. import java.awt.Component; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.RenderingHints; import java.awt.image.BufferedImage; import javax.swing.BorderFactory; import javax.swing.DefaultListCellRenderer; import javax.swing.DefaultListModel; import javax.swing.Icon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import … Read more
Okay, this is a little slight of hand. The example code will only work for 90 degree increments (it was only designed this way), to do smaller increments you to use some trig to calculate the image width and height (there’s a answer somewhere for that to ;)) public class ImagePane extends JPanel { private … Read more
This is not an immediate answer to your question, but knowing (or at least suspecting) what it is that you wish to offer (a simple paint program), I suggest starting with this approach based around a BufferedImage as the painting surface.. import java.awt.*; import java.awt.RenderingHints.Key; import java.awt.event.*; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.util.HashMap; … Read more
The main problem is that you won’t be able do create classes in packages named java.awt. But except that point, basically you can rewrite a library based on awt API. You can also check awt-android-compat project.
I was working with a main() in a class which statically loads different parts of JFreeChart in Constants (and other static code). Moving the static loading block to the top of the class solved my problem. This doesn’t work: public class Foo() { private static final Color COLOR_BACKGROUND = Color.WHITE; static { /* too late … Read more
The image fondo should already be scaled to 1200×600. I am not sure, but is super.paint(g) needed? You might also use paintComponent. The event handling (you seem to be moving by 1 pixel on key down), must be done correctly. I would have set the direction and speed (1px), and leave it to a swing … Read more
KeyListener is a much lower level API which requires the component that it is registered to be focused AND have keyboard focus. This can cause issues when you have other components within your game that may grab keyboard focus, for example. KeyListener is generally more difficult to maintain and extend or change, as typically, all … Read more