141 lines
4.2 KiB
Java
141 lines
4.2 KiB
Java
package netpaint.client.tools;
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import java.awt.Point;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import netpaint.messaging.ImageMessage;
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import netpaint.client.gui.ClientUI;
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import netpaint.client.Client;
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/**
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* Class ImageTool: The image tool allows you to insert an image into
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* the graphics panel.
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*
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* <PRE>
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* Revision History:
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* v1.0 (Feb. 09, 2004) - Created the ImageTool class
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* </PRE>
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*
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* @author <A HREF="mailto:gtg308i@mail.gatech.edu">Vladimir Urazov</A>
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* @version Version 1.0, Feb. 09, 2004
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*/
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public class ImageTool extends AbstractTool {
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/**
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* Creates a new <code>ImageTool</code> instance.
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*/
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public ImageTool() {
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super(netpaint.messaging.MessageSettings.DRAW_IMAGE_TYPE);
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incrementClickCount();
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}
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/**
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* This function will be called when the user clicks on the graphics
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* panel.
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*
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* @param position a <code>Point</code> value
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* @exception Exception if an error occurs
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*/
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public void processClick(final Point position) throws Exception {
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ImageMessage msg = null;
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if (getClickCount() == 1) {
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//FIXME: Please
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clear();
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BufferedImage image = ClientUI.getInstance().getImagePanel().getImage();
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if (image == null) {
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//Tell the user to load an image and THEN click!
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ClientUI.getInstance().showWarning("Warning", "First you should paste the URL"
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+ "into the URL text area, then click 'Load',"
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+ " and then you may click on the"
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+ "panel to select where to insert the image");
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return;
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}
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msg = (ImageMessage) getMessage();
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//This is the first click:
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msg.setXCoord((float) position.getX());
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msg.setYCoord((float) position.getY());
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incrementClickCount();
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} else if (getClickCount() == 2) {
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msg = (ImageMessage) getMessage();
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msg.setWidth((float) (position.getX() - msg.getXCoord()));
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msg.setHeight((float) (position.getY() - msg.getYCoord()));
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msg.setURL(ClientUI.getInstance().getImagePanel().getImageURL());
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finish();
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}
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}
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/**
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* This will clear any progress the tool has made so far. If the
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* user has already started drawing the shape, but has not yet
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* finished, calling this method will discard all the progress made
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* so far and start from the clean slate.
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*/
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public synchronized void clear() {
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resetClickCount();
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incrementClickCount();
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setMessage(new ImageMessage(Client.getInstance().getUsername()));
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}
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/**
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* If the tool is currently being employed and the user has drawn
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* some of the shape, but hasn't yet finished, then this function
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* should render the intermediate view of the shape to the
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* target. If the tool has already finished, or hasn't even started
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* yet, then it should draw nothing.
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*
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* @param target a <code>Graphics2D</code> value
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*/
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public synchronized void render(final Graphics2D target) {
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ImageMessage msg = (ImageMessage) getMessage();
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Point mLocation
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= ClientUI.getInstance().getGraphicsPanel().getMousePosition();
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if (getClickCount() == 1) {
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float xCoord = (float) mLocation.getX();
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float yCoord = (float) mLocation.getY();
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BufferedImage image
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= ClientUI.getInstance().getImagePanel().getImage();
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if (image != null) {
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target.drawImage(image, null, (int) xCoord, (int) yCoord);
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}
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} else if (getClickCount() == 2) {
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float xCoord = msg.getXCoord();
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float yCoord = msg.getYCoord();
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float width = (float) (mLocation.getX() - xCoord);
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float height = (float) (mLocation.getY() - yCoord);
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BufferedImage image
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= ClientUI.getInstance().getImagePanel().getImage();
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if (image == null) { return; }
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if (width < 1) {
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width = 1.0f;
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}
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if (height < 1) {
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height = 1.0f;
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}
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// target.drawImage(bim, null, (int) xCoord, (int) yCoord);
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target.drawImage(image,
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(int) xCoord,
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(int) yCoord,
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(int) width, (int) height, null);
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}
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}
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}
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