CollageLabStarter/PictureFrame.java at main · NNHSComputerScience/CollageLabStarter · GitHub

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importjavax.swing.*;
importjava.awt.*;

/**
 * Class that holds a digital picture and displays it using a JFrame
 *
 * @author Barb Ericson
 */
publicclassPictureFrame
{

////////////////// fields ////////////////////////////

/** Main window used as the frame */
JFrameframe = newJFrame();

/** ImageIcon used to display the picture in the label*/
ImageIconimageIcon = newImageIcon();

/** Label used to display the picture */
privateJLabellabel = newJLabel(imageIcon);

/** Digital Picture to display */
privateDigitalPicturepicture;

///////////////// constructors ////////////////////////

/**
 * A constructor that takes no arguments. This is needed
 * for subclasses of this class
 */
publicPictureFrame()
 {
// set up the frame
initFrame();
 }

/**
 * A constructor that takes a picture to display
 * @param picture the digital picture to display in the
 * picture frame
 */
publicPictureFrame(DigitalPicturepicture)
 {
// set the current object's picture to the passed in picture
this.picture = picture;

// set up the frame
initFrame();
 }

///////////////////////// methods ///////////////////////////////

/**
 * Method to set the picture to show in this picture frame
 * @param picture the new picture to use
 */
publicvoidsetPicture(Picturepicture)
 {
this.picture = picture;
imageIcon.setImage(picture.getImage());
frame.pack();
frame.repaint();
 }

/**
 * A method to update the picture frame image with the image
 * in the picture
 */
publicvoidupdateImage()
 {
// only do this if there is a picture
if (picture != null)
 {
// set the image for the image icon from the picture
imageIcon.setImage(picture.getImage());

// set the title of the frame to the title of the picture
frame.setTitle(picture.getTitle());

 }
 }

/**
 * A method to update the picture frame image with the image in
 * the picture and show it
 */
publicvoidupdateImageAndShowIt()
 {
// first update the image
updateImage();

// now make sure it is shown
frame.setVisible(true);
 }

/**
 * A method to make sure the frame is displayed
 */
publicvoiddisplayImage()
 {
frame.setVisible(true);
 }

/**
 * A method to hide the frame
 */
publicvoidhide()
 {
frame.setVisible(false);
 }

/**
 * A method to set the visible flag on the frame
 * @param flag the flag to use
 */
publicvoidsetVisible(booleanflag)
 {
frame.setVisible(flag);
 }

/**
 * A method to close a picture frame
 */
publicvoidclose()
 {
frame.setVisible(false);
frame.dispose();
 }

/**
 * Method to set the title for the picture frame
 * @param title the title to use
 */
publicvoidsetTitle(Stringtitle)
 {
frame.setTitle(title);
 }

/**
 * Method to force the picture frame to repaint (redraw)
 */
publicvoidrepaint()
 {

// make it visible
frame.setVisible(true);

// update the image from the picture
updateImage();

// tell the JFrame to handle the repaint
frame.repaint();
 }

/**
 * A method to initialize the picture frame
 */
privatevoidinitFrame()
 {

// set the image for the picture frame
updateImage();

// add the label to the frame
frame.getContentPane().add(label);

// pack the frame (set the size to as big as it needs to be)
frame.pack();

// make the frame visible
frame.setVisible(true);
 }

}