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Swing / AWT / SWT
Creating multiple images using a loop.
John Wayne
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Posts: 1
posted 18 years ago
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How? I've tried many times, this is what I have so far:
public static void addComponentsToPane(Container pane) { for(int i = 0; i < 400; i++) { pane.setLayout(null); Insets insets = pane.getInsets(); ImageIcon icon = new ImageIcon("Grass.gif"); JLabel GrassTop = new JLabel(icon); JLabel GrassBottom = new JLabel(icon); Dimension sizeTop = GrassTop.getPreferredSize(); Dimension sizeBottom = GrassBottom.getPreferredSize(); GrassTop.setBounds(insets.left, insets.top, sizeTop.width, sizeTop.height); GrassBottom.setBounds(insets.left - 20, insets.top + 20, sizeBottom.width - 20, sizeBottom.height); pane.add(GrassTop); pane.add(GrassBottom); } }
But, I want to display the images within a certain amount of pixels so they don't overlap, help?
Kaydell Leavitt
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posted 18 years ago
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Welcome to the
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You could use a GridBagLayout and a GridBagConstraints object instead of using a null layout manager.
package com.kaydell.test; import java.awt.Container; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingUtilities; // This annotation suppresses warnings about serialization for the following class. @SuppressWarnings("serial") // The grass window extends JFrame window and implements the Runnable interface to allow the window to be more thread-safe. public class GrassWindow extends JFrame implements Runnable { // This GridBagConstrainst object lets you control the size and placement of Component objects public GridBagConstraints createGridBagConstrains() { GridBagConstraints constraints = new GridBagConstraints(); constraints.anchor = GridBagConstraints.NORTH; constraints.gridx = 0; constraints.gridy = 0; constraints.gridwidth = 1; constraints.gridheight = 1; return constraints; } // This method adds icons by row and column using the GridBagLayout and the GridBagConstraint objects. public void addComponentsToPane() { Container pane = getContentPane(); pane.setLayout(new GridBagLayout()); GridBagConstraints constraints = createGridBagConstrains(); ImageIcon icon = new ImageIcon("Grass.gif"); for(int i = 0; i < 20; i++) { for (int j = 0; j < 20; j++) { JLabel GrassTop = new JLabel(icon); JLabel GrassBottom = new JLabel(icon); constraints.gridx = i; constraints.gridy = j; pane.add(GrassTop,constraints); pane.add(GrassBottom,constraints); } } } // This is called by the Swing thread to run this window on the Swing thread. public void run() { pack(); setVisible(true); } // Entry-point into the program. public static void main(String[] args) { GrassWindow theGrassWindow = new GrassWindow(); theGrassWindow.addComponentsToPane(); SwingUtilities.invokeLater(theGrassWindow); } }
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