Catch Keyevents inside mouse click
hi,
I want to catch diffrent key events(like shift +arrow key) inside mouse click how can i do that?
I have tryed it like this but i am getting same value of key. How can i get diffrent value for each key?
(for example letter J or K should have diffrent key value when pressed)
public void mouseClicked(MouseEvent me)
/*me=new MouseEvent(me.getComponent(), int id, long when, ALT_DOWN_MASK, int x, int y,*/
System.out.println("Key Event"+me.KEY_EVENT_MASK);
System.out.println("me.getModifiers()"+me.getModifiers() );
}
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My Apple TV 2 is slow when trying to move through different menu selections. It is like a slow computer trying to catch up to mouse clicks. It eventually remembers the buttons that were pushed on the remote, but it freezes and takes a minute to catch up.
I had something similar a couple of week ago, it would scroll then stop, scroll then stop.
At some point the porblem went away.
Try unpowering and restarting your AppleTV. Rsetart iTunes too. -
Mouse clicks inside image in applet
How can I respond to mouse clicks inside particular regions in an image loaded as part of an applet in a browser? ie, I want to send these clicks onto the server for the server to handle it and the server should change the image according to the mouse clicks.
Thanks,/* <applet code="ImageMouse" width="400" height="400"></applet>
* use: >appletviewer ImageMouse.java
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
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public class ImageMouse extends JApplet
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Catching mouse click on an irrigular shape image
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Hi,
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Multiple JButtons inside JTable cell - Dispatch mouse clicks
Hi.
I know this subject has already some discussions on the forum, but I can't seem to find anything that solves my problem.
In my application, every JTable cell is a JPanel, that using a GridLayout, places vertically several JPanel's witch using an Overlay layout contains a JLabel and a JButton.
As you can see, its a fairly complex cell...
Unfortunately, because I use several JButtons in several locations inside a JTable cell, sometimes I can't get the mouse clicks to make through.
This is my Table custom renderer:
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return (Component) value;
}and this is my custom editor (so clicks can get passed on):
public class TimeTableEditor extends AbstractCellEditor implements TableCellEditor {
private TimeTableRenderer render = null;
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render = new TimeTableRenderer();
public Component getTableCellEditorComponent(JTable table, Object value,
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if (value instanceof BlocoGrid) {
if (((BlocoGrid) value).barras.size() > 0) {
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return null;
public Object getCellEditorValue() {
return null;
}As you can see, both the renderer and editor return the same component that cames from the JTable model (all table values (components) only get instantiated once, so the same component is passed on to the renderer and editor).
Is this the most correct way to get clicks to the cell component?
Please check the screenshot below to see how the JButtons get placed inside the cell:
http://img141.imageshack.us/my.php?image=calendarxo9.jpg
If you need more info, please say so.
Thanks.My mistake... It worked fine. The cell span code was malfunctioning. Thanks anyway.
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Onclick javascript, catching mouse clicks
Hello Forum,
I have a page, let's say "page 1" with an interactive report and a column link.
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When i click now a second time at the column link on "page 1" (not a ondblclick event), before the page branches to "page 2", i will get an error.
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As work around, i have the following idea but no solution for this idea.
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the first mouse-click should be ok, the second, third, etc should do nothing.
I guess ondblclick event is not a the right way to handle this issue.
Because when someone clicks and he will wait for two seconds and then he clicks again before the page is branching,
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COMMIT_FOARM IS NOT WORKING INSIDE THE WHEN-MOUSE-CLICK
Dear friends
I have following script in when-mouse-click trigger
BEGIN
IF NOT Form_Success THEN
Bell;
RAISE Form_Trigger_Failure;
END IF;
IF :System.Form_Status = 'CHANGED' THEN
IF :LOCK_FLAG = 1 THEN
UPDATE PROJ.IM_REQUEST_HEADER
SET LOCK_FLAG = 1
WHERE DOC_CODE = :DOC_CODE ;
SHOW_MESSAGE('DOCUMENT CODE -1'|| ' '||:DOC_CODE);
SHOW_MESSAGE('LOCK FLAG -1'|| ' '||:LOCK_FLAG);
Commit_Form;
MESSAGE('The Record have been changed -1 ');
ELSE
UPDATE PROJ.IM_REQUEST_HEADER
SET LOCK_FLAG = 0
WHERE DOC_CODE = :DOC_CODE ;
Commit_Form;
MESSAGE('The Record have been changed - 2');
END IF;
ELSIF :System.Form_Status <> 'QUERY' THEN
Message('An error prevented your changes from being
committed.');
Bell;
RAISE Form_Trigger_Failure;
END IF;
END;
Note :
The above trigger is attached to this field LOCK_FLAG and the item type of LOCK_FLAG is check box in the form and the property of the LOCK_FLAG
is site as the following :
database item = NO , and the property of the blcok IM_REQUEST_HEADER is site as the following :
database data block = NO
and my problem is when i change the value of LOCK_FLAG is not executting the update statement .
waiting for your valuable answer in details thank in advance for your cooperation.
best regards
jamil alshaibaniDear Wilfred
Thank you very much for your cooperation, yes when I change the “Database data block “ property to no, it works, as I wanted to be.
Notes about my application:
In my program I provide the store keeper query screen, he can check the orders and lock the specific order by clicking on the LOCK_FLAG field, so after he locked the field the requester user can not change his order content if it is locked by the store keeper
And the way I was trying to do it ,by query the data from IM_REQUEST_HEADER Table which is the Order table which is the header table ,the form is displaying doc_code ,doc_date ,lock_flag,and the order store name ,and I provide him a report on the same form that he can see the details of the order items ,and all the field properties set to no, that is update allowed to no ,insert allowed set to no, but the field lock_flag property set as update allowed to yes and insert allowed set to yes
and I would like to now how it was displaying this message
ORA-01400 cannot insert NULL INTO “PROJ”.IM_REQUEST_HEADER”.DOC_CODE
And I was not inserting, I was just updating the lock_flag by the above update statement.
Best regards
Jamil Alshaibani -
Firefox 9.0.1 with Flash player not catch keyboard event with mouse click.
In a flash application, I need select mutil items using shite key and mouse click, it is not working. looks like firefox didn't pass the keyboard even alone with the click event. This happen on Window 7, IE and Chrome have no problem. only FF
i have the same problem everytime i open a website with flashcontent firefox freezes and i have to kill the flash process to unfreeze the browser the only way i can see a youtube video is in html5 mode.
Hardware
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Unable to paint (using paint() in JPanel) inside mouse listeners
This is hard to explain but I'll do my best :)
I've created a little game and at some point I needed to make images "move" on the JPanel (through paint()), on a checkers-based game board.
The game works like so:
it has a mouse listener for clicks and movement, and the main game process is THINK(), REPAINT(), which is repeated until the user wins (the above is inside a while).
The mouse actions were added to the constructor so they are always active, THINK changes the enemy's locations, and REPAINT simply calls "paint()" again.
The picture is either an enemy or the player, and it can only "rest" on squares.
(e.g. point's x and y must be divided in 50).
While doing that, I wanted to make the movement more sleek and clean,
instead of them simply jumping from one square to the other with a blink of the eye.
So, I've created MOVEACTOR, that "moves" an enemy or a player from its current point (actor.getPoint()) to the requested future square (futurePoint).
//actor = enemy or player, has getPoint() that returnes the current point on the board where he rests on.
//futurePoint = the new point where the enemy or player should be after the animation.
//please ignore obvious stuff that has nothing to do with what I asked -- those will be deleted in the future, for they are only temporary checking extra lines and stuff.
//also feel free to ignore the "jumpX" things. Those are just to change images, to imitate physical "jumping" animation.
protected void moveActor(Actor actor, Point futurePoint)
Point presentPoint = actor.getPoint();
int x = (int)presentPoint.getX(), y = (int)presentPoint.getY();
int addToX, addToY;
if (futurePoint.getX() > x) addToX = 1;
else addToX = -1;
if (futurePoint.getY() > y) addToY = 1;
else addToY = -1;
Point middlePoint = new Point(x,y);
int imageCounter = 0;
while ( (middlePoint.getX()!=futurePoint.getX()) && (middlePoint.getY()!=futurePoint.getY()) ){
imageCounter++;
x+=addToX;
y+=addToY;
middlePoint.setLocation(x,y);
actor.setPoint(middlePoint);
/*if (imageCounter<=10) actor.setStatus("jump1");
else if (imageCounter<=40) actor.setStatus("jump2");
else if (imageCounter<=50) actor.setStatus("jump3");*/
repaint();
try {animator.sleep(1);} catch (InterruptedException e) {}
//actor.setStatus("idle");
}I use the above on several occasions:
[1] When an enemy moves. Summary:
if (playerIsToVillainsRight) xToAdd = 50;
else if (playerIsToVillainsLeft) xToAdd = -50;
else if (playerIsOnSameRowAsVillain) xToAdd = 0;
if (playerIsBelowVillain) yToAdd = 50;
else if (playerIsAboveVillain) yToAdd = -50;
else if (playerIsOnSameColumnAsVillain) yToAdd = 0;
Point futurePoint = new Point (villainX+xToAdd, villainY+yToAdd);
moveActor(actors[currentVillain], futurePoint);[2] When the player moves. Summary (this is inside the mouseClicked listener):
//mouseLocation = MouseWEvent.getPoint();
//stl, str, etc = rectangles that represents future location of the player on the board.
if (waitingForPlayer) {
if (stl.contains(mouseLocation) && !hoveringVillain(stl)) {
moveActor(actors[0], stl.getLocation());
waitingForPlayer = false;
if (str.contains(mouseLocation) && !hoveringVillain(str)) {
moveActor(actors[0], str.getLocation());
waitingForPlayer = false;
if (sbl.contains(mouseLocation) && !hoveringVillain(sbl)) {
moveActor(actors[0], sbl.getLocation());
waitingForPlayer = false;
if (sbr.contains(mouseLocation) && !hoveringVillain(sbr)) {
moveActor(actors[0], sbr.getLocation());
waitingForPlayer = false;
SO ... WHAT IS THE QUESTION?!?
What I see when I run the game:
the animation of the enemy (first code) works, but the animation of the player (second code, inside the mouse listeners) -- doesn't!
The purpose of the moveActor is to move the enemy or player pixel by pixel, until its in the future point,
instead of skipping the pixels between the squares and going straight for the future location.
So what comes out is, that the enemy is moving pixel by pixel, and the player simply jumps there!
I doublechecked and if I use moveActor with the player OUTSIDE the mouse listener, it works (i think).
Any ideas what is the source of this problem?
Hope I made myself clear enough :D
Thanks,
Eshed.I don't know if thats what happens, nor how to fix the thread problems. The mosue actions are "threaded" by default, no? And the moving thing happens after the mouse was clicked, and if the enemy's moving the user can still move his mouse and get responses, like "enemy didn't move yet" and stuff.
Here's the complete GamePanel.java:
//drawings
import javax.swing.ImageIcon;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
//events
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
//tools
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.MediaTracker;
import java.awt.Dimension;
//panels, buttons, etc
import javax.swing.JPanel;
/** The Game Panel.
*The panel's size is 500x500, and each square is squaresized 50.
*This is where the game actually "exists". Here its being updated, drawn, etc.*/
public class GamePanel extends JPanel implements Runnable
private static final int PWIDTH = 500; //Width of the panel.
private static final int PHEIGHT = 500; //Height of the panel.
private static final int SQUARESIZE = 50; //Size of each square in the panel.
private boolean working = false; //Game keeps going until this is FALSE.
private volatile Thread animator; //The animation thread.
private ImageIcon stand,fall; //Images for the background - ground and water.
private static ImageHandler ih; //An image handler for image loading.
private int numOfImages = 0; //Number of total images (max image qunatity).
private Actor[] actors; //The actors: [0] is the player, rest are enemies.
private Point mouseLocation; //Saves the current mouse location for checking where the mouse is
protected Rectangle stl, str, sbl, sbr; //squares around the player, for mouse stuff.
protected Rectangle v1, v2, v3, v4, v5; //squares around each villain, for mouse stuff.
protected Rectangle wholeBoard = new Rectangle(0,0,PWIDTH,PHEIGHT);
protected boolean waitingForPlayer = true;
private int currentVillain = 1;
private boolean inSight = false;
// in methods other than the listeners.
/** Waits for the Window (or whatever this panel loads in) to settle in before doing anything.*/
public void addNotify()
super.addNotify(); //When the super finishes...
go(); //..go, go, go!
/** Starts the game.*/
private void go()
if (animator==null || !working) { //if the game isn't in process,
animator = new Thread(this); //make the animator as the main process,
animator.start(); //and start it (because of the runnable it launches "run()".
/**Constructor of the Game Panel.*/
public GamePanel()
numOfImages = 14; //Total image num.
ih = new ImageHandler(this,numOfImages); //Setting a new image handler for the images.
ih.addImage("player_idle", "images/p_idle.png"); //Adding images.
ih.addImage("villain_idle", "images/v_idle.png");
ih.addImage("stand", "images/stand.gif");
ih.addImage("fallpng", "images/fall.png");
ih.addImage("fall", "images/fall.gif");
ih.addImage("ghost", "images/ghost.gif");
ih.addImage("villain_angry", "images/v_angry.png");
ih.addImage("player_angry", "images/p_angry.png");
ih.addImage("player_jump1", "images/p_j1.gif");
ih.addImage("player_jump2", "images/p_j2.gif");
ih.addImage("player_jump3", "images/p_j3.gif");
ih.addImage("villain_jump1", "images/v_j1.gif");
ih.addImage("villain_jump2", "images/v_j2.gif");
ih.addImage("villain_jump3", "images/v_j3.gif");
setPreferredSize(new Dimension(PWIDTH,PHEIGHT)); //Setting size of the panel.
setFocusable(true); //This and the next makes the window "active" and focused.
requestFocus();
/** Mouse hovering settings.*/
addMouseMotionListener( new MouseMotionAdapter()
/** When the mouse is moving, do these stuff.*/
public void mouseMoved(MouseEvent e1)
* | stl | | str | stl = squareTopLeft
* |_______|_______|_______| str = squareTopRight
* | |current| | current = player's location
* |_______|_______|_______| sbl = squareBottomLeft
* | sbl | | sbr | sbr = squareBottomRight
* |_______|_______|_______|
mouseLocation = e1.getPoint();
Dimension defaultSquareDimension = new Dimension(50,50);
//current-player-location points
Point topLeft = new Point((int)actors[0].getPoint().getX(), (int)actors[0].getPoint().getY());
Point topRight = new Point((int)actors[0].getPoint().getX()+50, (int)actors[0].getPoint().getY());
Point bottomLeft = new Point((int)actors[0].getPoint().getX(), (int)actors[0].getPoint().getY()+50);
Point bottomRight = new Point((int)actors[0].getPoint().getX()+50, (int)actors[0].getPoint().getY()+50);
//four-squares-around-the-player points
//T = top, B = bottom, R = right, L = left
Point ptl = new Point((int)topLeft.getX()-50,(int)topLeft.getY()-50);
Point ptr = new Point((int)topRight.getX(),(int)topRight.getY()-50);
Point pbl = new Point((int)bottomLeft.getX()-50,(int)bottomLeft.getY());
Point pbr = new Point((int)bottomRight.getX(),(int)bottomRight.getY());
//ghosts
stl = new Rectangle (ptl, defaultSquareDimension);
str = new Rectangle (ptr, defaultSquareDimension);
sbl = new Rectangle (pbl, defaultSquareDimension);
sbr = new Rectangle (pbr, defaultSquareDimension);
Rectangle player = new Rectangle(topLeft, defaultSquareDimension); //rectangle of player
if (stl.contains(mouseLocation) && !hoveringVillain(stl))
actors[8] = new Actor("ghost", ptl);
else actors[8] = null;
if (str.contains(mouseLocation) && !hoveringVillain(str))
actors[9] = new Actor("ghost", ptr);
else actors[9] = null;
if (sbl.contains(mouseLocation) && !hoveringVillain(sbl))
actors[10] = new Actor("ghost", pbl);
else actors[10] = null;
if (sbr.contains(mouseLocation) && !hoveringVillain(sbr))
actors[11] = new Actor("ghost", pbr);
else actors[11] = null;
private boolean hoveringVillain(Rectangle r)
boolean onVillain = false;
for (int i=1; i<=5 && !onVillain; i++) onVillain = actors.getRect().equals(r);
return onVillain;
/** Mouse-click settings.
Note: only usable after moving the mouse. /
addMouseListener (new MouseAdapter()
/** When the mouse button is clicked */
public void mouseClicked (MouseEvent me)
mouseClickedAction(me);
private boolean hoveringVillain(Rectangle r)
boolean onVillain = false;
for (int i=1; i<=5 && !onVillain; i++) onVillain = actors[i].getRect().equals(r);
return onVillain;
public void mouseClickedAction(MouseEvent me)
System.out.println("Point: "+me.getX()+","+me.getY());
if (waitingForPlayer) {
//causes error if the mouse wasn't moved uptil now. try it.
mouseLocation = me.getPoint();
if (stl.contains(mouseLocation) && !hoveringVillain(stl)) {
moveActor(actors[0], stl.getLocation());
waitingForPlayer = false;
if (str.contains(mouseLocation) && !hoveringVillain(str)) {
moveActor(actors[0], str.getLocation());
waitingForPlayer = false;
if (sbl.contains(mouseLocation) && !hoveringVillain(sbl)) {
moveActor(actors[0], sbl.getLocation());
waitingForPlayer = false;
if (sbr.contains(mouseLocation) && !hoveringVillain(sbr)) {
moveActor(actors[0], sbr.getLocation());
waitingForPlayer = false;
} else MiscTools.shout("Wait for the computer to take action!");
if (actors[0].getPoint().getY() == 0){
for (int i=1; i<=5; i++){
actors[i].setStatus("angry");
//repaint();
MiscTools.shout("Game Over! You Won!");
/** First thing the Game Panel does.
Initiating the variables, and then looping: updating, painting and sleeping./
public void run() {
Thread thisThread = Thread.currentThread(); //Enables the restart action (two threads needed).
init(); //Initialize the variables.
while (animator == thisThread && working){ //While the current thead is the game's and it's "on",
think(); //Update the variables,
repaint(); //Paint the stuff on the panel,
try {Thread.sleep(5);} catch (InterruptedException ex) {} //And take a wee nap.
/** Initializing the variables.*/
private void init()
currentVillain = 1;
working = true; //Make the game ready for running.
inSight = false;
actors = new Actor[12]; //Six actors: player and 5*villains.
actors[0] = new Actor("player", 200, 450); //The first actor is the player.
int yPoint = 50; //The Y location of the villains (first row).
/* ACTORS ON TOP, RIGHT, LEFT
actors[1] = new Actor ("villain", 0, 350);
actors[2] = new Actor ("villain", 0, 150);
actors[3] = new Actor ("villain", 50, 0);
actors[4] = new Actor ("villain", 250, 0);
actors[5] = new Actor ("villain", 450, 0);
actors[6] = new Actor ("villain", 450, 200);
actors[7] = new Actor ("villain", 450, 400);
/* ACTORS ON TOP*/
for (int i=1; i<actors.length-4; i++){ //As long as it doesnt go above the array...
actors[i] = new Actor ("villain", yPoint, 0); //init the villains
actors[i].setStatus("idle");
yPoint+=100; //and advance in the Y axis.
/** Updating variables.*/
private void think()
if (!waitingForPlayer){
//initialize
int playerX = (int)actors[0].getPoint().getX();
int playerY = (int)actors[0].getPoint().getY();
boolean moved = false;
wholeBoard = new Rectangle(0,0,500,500); //needed to check whether an actor is inside the board
//for (int in = 0; in<=5; in++) actors[in].setStatus("idle"); //"formatting" the actor's mood
if (playerY <= 1000) inSight = true; //first eye contact between the player and villains.
int closestVillainLevel = 0;
int[] vills = closestVillain();
int moveCounter = 0;
if (inSight) {
while (!moved){ //while none of the villains made a move
moveCounter++;
if (moveCounter == 5) moved = true;
else{
currentVillain = vills[closestVillainLevel];
int villainX = (int)actors[currentVillain].getPoint().getX();
int villainY = (int)actors[currentVillain].getPoint().getY();
//clearing stuff up before calculating things
boolean playerIsBelowVillain = playerY > villainY;
boolean playerIsAboveVillain = playerY < villainY;
boolean playerIsOnSameRowAsVillain = playerY == villainY;
boolean playerIsToVillainsRight = playerX > villainX;
boolean playerIsToVillainsLeft = playerX < villainX;
boolean playerIsOnSameColumnAsVillain = playerX == villainX;
//System.out.println("\n-- villain number "+currentVillain+" --\n");
int xToAdd = 0, yToAdd = 0;
if (playerIsToVillainsRight) xToAdd = 50;
else if (playerIsToVillainsLeft) xToAdd = -50;
else if (playerIsOnSameRowAsVillain) xToAdd = 0;
if (playerIsBelowVillain) yToAdd = 50;
else if (playerIsAboveVillain) yToAdd = -50;
else if (playerIsOnSameColumnAsVillain) yToAdd = 0;
Point futurePoint = new Point (villainX+xToAdd, villainY+yToAdd);
if (legalPoint(futurePoint)){
moveActor(actors[currentVillain], futurePoint);
moved = true;
//System.out.println("\nVillain "+currentVillain+" is now at "+actors[currentVillain].getPoint());
else closestVillainLevel=circleFive(closestVillainLevel);
} //end of else
} //end of while
//currentVillain = circleFive(currentVillain); //obsolete
} //end of ifInSight
waitingForPlayer = true;
private boolean legalPoint(Point fp)
return (wholeBoard.contains(fp) && !onPeople(fp) && legalSquare(fp));
private boolean legalSquare(Point p)
if ( (p.getX()==0 || p.getX()%100==0) && (p.getY()/50)%2!=0 ) return true;
if ( (p.getX()/50)%2!=0 && (p.getY()==0 || p.getY()%100==0) ) return true;
return false;
//return the closest villain to the player, by its level of distance.
public int[] closestVillain()
//System.out.println("Trying to find the closest villain...");
double[] gaps = new double[5]; //the distances array
//System.out.println("The villains' distances are: ");
for (int i=0; i<5; i++){
gaps[i] = distanceFromPlayer(actors[i+1].getPoint()); //filling the distances array
//System.out.print(gaps[i]+", ");
int[] toReturn = new int[5];
double smallestGapFound;
double[] arrangedGaps = smallToLarge(gaps);
for (int level=0; level<5; level++){
smallestGapFound = arrangedGaps[level];
for (int i=1; i<=5; i++){
if (smallestGapFound == distanceFromPlayer(actors[i].getPoint())){
toReturn[level] = i;
return toReturn;
private double[] smallToLarge(double[] nums)
//System.out.println("\nArranging array... \n");
double[] newArray = new double[5];
int neweye = 0;
double theSmallestOfTheArray;
for (int i=0; i<nums.length; i++){
theSmallestOfTheArray = smallest(nums);
//System.out.println("\t\t>> Checking whether location "+i+" ("+nums[i]+") is equal to "+theSmallestOfTheArray);
if (nums[i] == theSmallestOfTheArray && nums[i]!=0.0){
//System.out.println("\t\t>> Adding "+nums[i]+" to the array...");
newArray[neweye] = nums[i];
//System.out.println("\t\t>> Erasing "+nums[i]+" from old array...\n");
nums[i] = 0.0;
neweye++;
i=-1;
/*System.out.print("\nDONE: ");
for (int i=0; i<newArray.length; i++)
System.out.print("["+newArray[i]+"] ");
System.out.println();*/
return newArray;
private double smallest (double[] nums)
//System.out.print("\tThe smallest double: ");
double small = 0.0;
int j=0;
while (j<nums.length){ //checking for a starting "small" that is not a "0.0"
if (nums[j]!=0.0){
small = nums[j];
j = nums.length;
} else j++;
for (int i=1; i<nums.length; i++){
if (small>nums[i] && nums[i]!=0.0){
small = nums[i];
//System.out.println(small+".");
return small;
private double distanceFromPlayer(Point vp)
Point pp = actors[0].getPoint(); //pp=plaer's point, vp=villain's point
double x = Math.abs(vp.getX() - pp.getX());
double y = Math.abs(vp.getY() - pp.getY());
return Math.sqrt(Math.pow(x,2) + Math.pow(y,2));
private int circleFive(int num)
if (num>=5) return 0;
else return num+1;
private boolean onPeople(Point p)
for (int jj=0; jj<=5; jj++)
if (jj!=currentVillain && p.equals(actors[jj].getPoint()))
return true;
return false;
/** Painting the game onto the Game Panel.*/
public void paintComponent(Graphics g)
Graphics2D graphics = (Graphics2D)g; //Reset the graphics to have more features.
//draw bg
graphics.setColor(Color.white); //"format" the panel.
graphics.fillRect(0,0,500,500);
char squareType = 'f'; //First square's type (stand or fall).
for (int height=0; height<PHEIGHT; height=height+SQUARESIZE){ //Painting the matrix bg.
for (int width=0; width<PWIDTH; width=width+SQUARESIZE){
if (squareType=='f') { //If a "fall" is to be drawn,
ih.paint(graphics, "fallpng", new Dimension(width,height)); //Draw a non-animated image to bypass white stuff.
ih.paint(graphics, "fall", new Dimension(width,height)); //Draw the water animation.
squareType = 's'; //Make the next square a "stand".
} else if (squareType=='s'){ //If a "stand" is to be drawn,
ih.paint(graphics, "stand", new Dimension(width,height)); //Draw the ground image,
squareType = 'f'; //and make the next square a "fall".
if (squareType=='f') squareType = 's'; //After finishing a row, switch again so
else squareType = 'f'; // the next line will start with the same type (checkers).
for (int i=actors.length-1; i>=0; i--){ //Draw the actors on the board.
if (actors[i]!=null)
ih.paint(graphics, actors[i].currentImage(), actors[i].getPoint());
/** Restart the game.
Or, in other words, stop, initialize and start (again) the animator thread and variables./
public void restart()
System.out.println("\n\n\nRESTARTING GAME\n\n\n");
animator = null; //Emptying the thread.
init(); //Initializing.
animator = new Thread(this); //Re-filling the thread with this panel's process.
animator.start(); //launch "run()".
protected void moveActor(Actor actor, Point futurePoint)
Point presentPoint = actor.getPoint();
int x = (int)presentPoint.getX(), y = (int)presentPoint.getY();
int addToX, addToY;
if (futurePoint.getX() > x) addToX = 1;
else addToX = -1;
if (futurePoint.getY() > y) addToY = 1;
else addToY = -1;
Point middlePoint = new Point(x,y);
int imageCounter = 0;
while ( (middlePoint.getX()!=futurePoint.getX()) && (middlePoint.getY()!=futurePoint.getY()) ){
imageCounter++;
x+=addToX;
y+=addToY;
middlePoint.setLocation(x,y);
actor.setPoint(middlePoint);
/*if (imageCounter<=10) actor.setStatus("jump1");
else if (imageCounter<=40) actor.setStatus("jump2");
else if (imageCounter<=50) actor.setStatus("jump3");*/
repaint();
try {animator.sleep(1);} catch (InterruptedException e) {}
//actor.setStatus("idle"); -
A New Thread With Each Mouse Click
Dear Java Programmers,
The following code gives a bouncing ball inside of a panel. With each click, I need to have a different ball added and the previous ball to keep on bouncing. This part is a larger question of multitreading. When I have an action listener for mouse clicks, and I need to have a new thread with each click, how do I do this and where do I put it?
Thank you in advance.
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.*;
import java.awt.Color;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
public class Multiball extends JPanel implements Runnable, MouseListener {
Thread blueBall;
boolean xUp, yUp;
int x= -10, y= -10, xDx, yDy;
public Multiball()
xUp = false;
yUp = false;
xDx = 1;
yDy = 1;
addMouseListener( this );
public void mousePressed( MouseEvent e )
x = e.getX();
y = e.getY();
blueBall = new Thread( this );
blueBall.start();
public void paint( Graphics g )
super.paint( g );
g.setColor( Color.blue );
g.fillOval( x, y, 10, 10 );
public void run()
while ( true ) {
try {
blueBall.sleep( 10 );
catch ( Exception e ) {
System.err.println( "Exception: " + e.toString() );
if ( xUp == true )
x += xDx;
else
x -= xDx;
if ( yUp == true )
y += yDy;
else
y -= yDy;
if ( y <= 0 ) {
yUp = true;
yDy = ( int ) ( Math.random() * 1 + 2 );
else if ( y >= 183 ) {
yDy = ( int ) ( Math.random() * 1 + 2 );
yUp = false;
if ( x <= 0 ) {
xUp = true;
xDx = ( int ) ( Math.random() * 1 + 2 );
else if ( x >= 220 ) {
xUp = false;
xDx = ( int ) ( Math.random() * 1 + 2 );
repaint();
public void mouseExited( MouseEvent e ) {}
public void mouseClicked( MouseEvent e ) {}
public void mouseReleased( MouseEvent e ) {}
public void mouseEntered( MouseEvent e ) {}
public static void main(String args[])
JFrame a = new JFrame("Ball Bounce");
a.add(new Multiball(), BorderLayout.CENTER);
a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
a.setSize(240,230);
a.setVisible(true);
}Thank you very much for your replies. As for the multithreading, I have created 20 threads in the main method. With each click, one of these 20 threads starts in order. Now, how do I get a ball to paint with each one? How do I reference them in the paintComponent method?
public void mousePressed( MouseEvent e )
x = e.getX();
y = e.getY();
blueBall = new Thread( this );
blueBall.start();
count ++;
System.out.print ("count is " + count);
MyThread[] threads = new MyThread[20];
for ( int ball = 0;ball < count; ball ++){
threads[ball] = new MyThread ("" + ball);
threads[ball].start ();
} -
Mouse clicks not detected on JTabbedPane
Hi all,
I have a JPanel placed inside a JTabbedPane. I want to double-click on the JPanel and bring up a JDialog. This works fine if the JPanel is not in a JTabbedPane, but if it is on a JTabbedPane, then the mouse clicks are not detected. I'd greatly appreciate any help you can give me.Here is a sample program that seems to work:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
public class TestInternalFrame extends JFrame
public TestInternalFrame()
JDesktopPane desktop = new JDesktopPane();
setContentPane( desktop );
JInternalFrame internal = new JInternalFrame( "Internal Frame" );
desktop.add( internal );
internal.setLocation( 50, 50 );
internal.setSize( 300, 300 );
internal.setVisible( true );
JTabbedPane tabbedPane = new JTabbedPane();
internal.getContentPane().add(tabbedPane);
tabbedPane.setPreferredSize( new Dimension(300, 200) );
JPanel panel = new JPanel();
tabbedPane.add( "Empty Panel", panel );
panel.addMouseListener( new MouseAdapter()
public void mouseClicked(MouseEvent e)
System.out.println(e.getClickCount());
public static void main(String args[])
TestInternalFrame frame = new TestInternalFrame();
frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
frame.setSize(400, 400);
frame.setVisible(true); -
Mouse clicks on shapes drawn on canvas
I'm having some trouble adding a mouseListener to a shape I've drawn on a canvas.
I'm drawing a circle using g.drawOval() and then filling it in with the g.fillOval().
The thing is I want the circle to be sensitive to mouse clicks on it, I'm trying to write the classic dots and boxes game, so I can draw a line from it to the
next circle (dot) clicked.
Unfortunately, the circle is not picking up on the mouseClicked event, I'm pretty sure my dotActions class works because I used it on another class which extends JLabel and it works fine, that is when the label is clicked the program exits, but when I add it to the Dots class it doesn't pick up on any mouse events.
Here is my code, any help would be appreciated, thanks.
public class Dots extends Canvas {
public Dots(gameBoard gb, Graphics g, int x, int y, int hspace, int vspace){
g.drawOval(x, y, 10, 10);
g.fillOval(x, y, 10, 10);
dotActions da = new dotActions(this);
addMouseListener(da);
public class dotActions implements MouseListener{
public void mouseClicked(MouseEvent e){
//this is a test to see if the mouse event is picked up
System.exit(0);
public void mouseEntered(MouseEvent e)
public void mouseExited(MouseEvent e)
public void mousePressed(MouseEvent e)
public void mouseReleased(MouseEvent e)
}Create a shape and add the listener to that as well as drawing to the screen.
Or what I did was to save all the shapes and then test the mouse point to see if current mouse point was inside any. In my case I am using it to provide context sensitive help
MArk
* handle context sensitive tooltips - replaces default java
* routine with our own which is context sensitive
public String getToolTipText(MouseEvent e)
Point raw_p = e.getPoint();
//convert to our co-ords
Point p = new Point(screenToScaledCoordsX((int) raw_p.getX()),
screenToScaledCoordsY((int) raw_p.getY()));
String tip = null;
//check any tooltips to see if match found
if (number_of_tooltips > 0)
//check each object and get master tooltip text if inside rectangle if on
//same page - go through all as text objects added before titles which will then be picked up
for (int i = 0; i < number_of_tooltips; i++)
if ((tool_tip_page[i] == last_page_id) &&
(tool_tip_rectangle.contains(p)))
tip = tool_tip_text[i];
//return default or ours
return tip; -
Mouse clicks occasionally stop working
I am currently deploying a Java Swing application, and sometimes the end-user encounters an unusual problem whereby they open the application and mouse clicks have no effect. The mouse movement is still tracked fine, as buttons and menus get highlighted as expected when the mouse passes over them. I searched for information about this problem, and learned that a work-around is to click the middle mouse button. This does indeed restore the mouse click behaviour and all continues to work fine after that.
So then I thought I might simulate a middle-button mouse click during my application start-up, in the hope of remedying the problem before any end-user actually sees it. The result is that instead of remedying the problem, I actually cause it to happen every time! The application gets into a state whereby mouse clicks are ignored, and clicking the middle-mouse button restores the mouse click behaviour.
Has anyone else experienced this problem, and know of a way to prevent end-users from experiencing this problem? Here's some example code that demonstrates the behaviour:
import java.awt.Robot;
import java.awt.event.InputEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Main
public static void main(String[] args)
JFrame frame = new JFrame();
frame.getContentPane().add(new JButton("Click Me"));
frame.pack();
frame.setLocationRelativeTo(null);
try
// Simulate a middle-button mouse click
Robot robot = new Robot();
robot.mousePress(InputEvent.BUTTON2_MASK);
catch (Exception e)
e.printStackTrace();
frame.setVisible(true);
}Note I'm using Java 1.6.0_07. Any help with this would be much appreciated,
Paul.import java.awt.Robot;
import java.awt.event.InputEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Main
public static void main(String[] args)
JFrame frame = new JFrame();
frame.getContentPane().add(new JButton("Click Me"));
frame.pack();
frame.setLocationRelativeTo(null);
try
// Simulate a middle-button mouse click
Robot robot = new Robot();
robot.mousePress(InputEvent.BUTTON2_MASK);
// Simulate a middle-button mouse click again
robot.mousePress(InputEvent.BUTTON2_MASK);
catch (Exception e)
e.printStackTrace();
frame.setVisible(true);
}? -
Response to mouse click by combo box list and underlying clickable label
Hello,
we developed a label responding to a mouse click by opening and thereby displaying an associated help text. The label extends a project specific hierarchy of labels and thus implements MouseListener, of course. Now we encountered a strange problem: It occurs when a combo box is placed above such a label in a panel. By clicking the combo box a selective list drops down and covers the label. As soon as a mouse click is performed on a list item directly covering (i.e., right in front of) the clickable label not only this item is selected but the help screen associated with the underlying label is displayed, too. So the mouse click is processed twice: as proposed by the combo box and unwantedly by the label. This behaviour could not be reproduced on other components being placed below a combobox. So the label itself seems to be the cause but we cannot imagine what could exactly be the reason for this double reaction. Perhaps anyone heard of something like that?
We are currently working with IBM Visual Age for Java 2.0 (Java version 1.1.8 with the according Swing version). The clickable label reflectively calls methods of a model to determine whether help is available and if so later on to open this help text.
Any help is appreciated!
DaniloThank you for your response. I tried both to check the focus and to consume the event. But I had to learn that labels are not able to catch the focus. I also was not able to consume an appropriate event of the combobox. So I finally solved the problem by extending JButton and implementing ActionListener. Thus my labels are actually buttons but I changed their appearance and behaviour so one cannot distinguish them from labels.
-
Hi, I have the following code so far, and when run in conjunction with other classes it creates a carousel feature.
When you click and hold on the carousel and drag up or down, the carousel moves in the relevant direction.
I am trying to change this click and drag, so instead when you click one of the polygons (which represent up and down arrows), the carousel moves up or down depending on which you click.
Can anyone help with this?!
Thanks very much!
class ScheduleBarCanvas extends Canvas implements MouseListener,
MouseMotionListener, ActionListener
* CONSTANTS *
/** Width of a slot, in pixels. */
static final int SLOT_WIDTH = 2;
/** Width of an entire day schedule bar, in pixels. */
static final int BAR_WIDTH = Slot.SLOTS_PER_DAY * SLOT_WIDTH;
/** Half of the height of a day schedule bar, in pixels. */
static final int BAR_HALF_HEIGHT = 20;
/** The width of an hour within a day schedule bar, in pixels. */
static final double HOUR_WIDTH = BAR_WIDTH / 24;
* The schedule day bars are represented as a rotatable 'wheel'. This value
* defines the 'angle' allocated to a single day bar.
private static final float DEGREES_PER_DAY_BAR = 10;
* For convenience, this value represents the number of day bars that occupy
* a 90-degree 'slice' of the schedule wheel.
private static final int DAY_BARS_PER_90_DEGREES = (int) 9;
* The maximum number of day bars that can be represented in the wheel.
private static final int MAX_BARS = 9*2-1;
* FIELDS *
* Popup menu to use for right click menu. The right click menu allows users
* to perform actions such as changing the climate for a selected period of
* time.
private final JPopupMenu rightClickMenu = new JPopupMenu();
* Determines whether 'paste day schedule' is an available option in the
* right click menu. 'Paste day schedule' should remain unavailable until
* the user has copied a day schedule bar.
private boolean allowPaste = false;
* When the user has chosen to copy a day schedule, it will be stored here.
private DaySchedule copiedDaySchedule;
* A day schedule with the default period allocations.
private final DaySchedule defaultDaySchedule;
/** X coordinate of the left end of the schedule bars. */
private int barLeftX;
/** Y coordinate of centre of schedule bar display. */
private int centreY;
/** Width of canvas, pixels. */
private int width;
/** Height of canvas, pixels. */
private int height;
/** X coordinate of last mouse click. */
private int lastMouseClickPositionX = 0;
/** Y coordinate of last mouse click. */
private int lastMouseClickPositionY = 0;
/** X coordinate of last right mouse button click. */
private int lastRightClickPositionX = 0;
/** Y coordinate of last right mouse button click. */
private int lastRightClickPositionY = 0;
/** Start time of last selected period. */
private Slot periodStartTime = new Slot(0);
/** End time of last selected period. */
private Slot periodEndTime = new Slot(0);
/** Last-pressed mouse button. */
private int pressedButton;
* While clicking and dragging to modify the end time of a period, this
* field stores the 'old' end time of the period.
private int currentPeriodEnd;
* While clicking and dragging to modify the end time of a period, this
* field stores the width of the current period. At other times, this field
* has the value 0.
private int currentPeriodWidth = 0;
* Rather than directly manipulating the window's canvas, a buffer is used.
* All updates to the display are computed 'out of sight', by writing to
* this buffer's Graphics object (see 'graphicsBuffer') and then copied to
* the canvas in one go.
private Image imageBuffer;
private Image imageBuffer2;
/** Graphics object buffer to use when updating the display. */
private Graphics graphicsBuffer;
private double animationSpeed = 0;
private double simTimeInc;
private double simTime = 0; // simulated time, HOURS from start
/** Collection of days */
private Schedule schedule;
* The set of day schedule bars visible on screen at present. As the user
* scrolls through different days, schedule bars will come in and out of
* sight, and hence will enter and leave this array.
private DayBar[] visibleScheduleBars;
/** Stores the available schedulables */
private List<Schedulable> palette;
private int barZeroDay;
/** Currently highlighted period - not currently used */
private Period selection;
/** Previously highlighted selection - not currently used */
private Period oldSelection; // button 3 selections
private Period dayDrag; // button 1 drag region
private DaySchedule daySched; // schedule affected by drag
* When clicking and dragging to change the duration of a Period, this value
* is used to store the number of the slot being dragged.
* If this is a new Period, and hence no prior boundary existed, this value
* will be -1.
private int draggedSlotBoundary;
* When you right click on a Period, the system fills this value with the
* number of the first slot in that Period. For instance, if 13:00 to 16:00
* is set to 'away', and you right click at 14:40 (or any other slot inside
* the 'away' Period), then this value will be set to the index of the slot
* 13:00.
private int firstSlotNumber;
* When you right click on a Period, the system fills this value with the
* number of the last slot in that Period. For instance, if 13:00 to 16:00
* is set to 'away', and you right click at 14:40 (or any other slot inside
* the 'away' Period), then this value will be set to the index of the slot
* 16:00.
private int lastSlotNumber;
private DaySchedule selectedDaySchedule;
private boolean createPeriods = true;
* CONSTRUCTORS *
* Setting various schedules that can be displayed
* Initialises the display of the scheduler
* Setting right click menu
ScheduleBarCanvas()
int delay = 0; // milliseconds
int period = 40; // milliseconds
final double updateFreq = 1000.0 / period; // H
visibleScheduleBars = new DayBar[20];
palette = new ArrayList<Schedulable>();
palette.add(new Schedulable(new Color(50, 50, 220))); // away
palette.add(new Schedulable(new Color(100, 180, 160))); // sleep
palette.add(new Schedulable(new Color(150, 150, 120))); // busy
palette.add(new Schedulable(new Color(200, 100, 20))); // relax
defaultDaySchedule = new DaySchedule(palette);
schedule = new Schedule(palette);
Timer timer = new Timer();
// Inner class construction for a java.util.Timer object with a
// defined TimerTask to run processes. See the java.util library
// in the Java API for details. Also refer to other java utility
// assistance classes which may be useful to you in the future.
timer.schedule(new TimerTask()
public void run()
simTimeInc = getAnimationSpeed() / (updateFreq * 200.0);
if (simTimeInc > 0.0)
{ // Advance simulation time at
simTime += simTimeInc; // current rate
repaint(); // then update the display ASAP.
}, delay, period); // schedule's init delay & repeat-call period
JMenuItem menuItem1 = new JMenuItem(
"Set climate to 'Away'", new ImageIcon("away.png")),
menuItem2 = new JMenuItem(
"Set climate to 'Sleeping'", new ImageIcon("sleep.png")),
menuItem3 = new JMenuItem(
"Set climate to 'Relaxing'", new ImageIcon("relax.png")),
menuItem4 = new JMenuItem(
"Set climate to 'Busy'", new ImageIcon("busy.png")),
menuItem5 = new JMenuItem(
"Reset day schedule", new ImageIcon("refresh.png")),
menuItem6 = new JMenuItem(
"Copy day schedule", new ImageIcon("copy.png"));
menuItem1.addActionListener(this);
menuItem2.addActionListener(this);
menuItem3.addActionListener(this);
menuItem4.addActionListener(this);
menuItem5.addActionListener(this);
menuItem6.addActionListener(this);
rightClickMenu.add(menuItem2);
rightClickMenu.add(menuItem4);
rightClickMenu.add(menuItem1);
rightClickMenu.add(menuItem3);
rightClickMenu.add(menuItem5);
rightClickMenu.add(menuItem6);
addMouseListener(this);
addMouseMotionListener(this);
* GRAPHICS METHODS *
* Updates the GUI.
* @param g graphics object to draw to.
public void update(Graphics g)
// NB: repaint() above automatically calls update(Graphics g) ASAP.
paint(g);
* Updates the display.
* @param g canvas to draw on.
public void paint(Graphics g)
float carouselRadius = 100; // Carousel radius in pixels
float degreesPerPixel = (float) (57.29 / carouselRadius);
if (currentPeriodWidth != 0)
simTime += currentPeriodWidth * (degreesPerPixel / DEGREES_PER_DAY_BAR) * 24;
currentPeriodEnd += currentPeriodWidth;
currentPeriodWidth = 0;
barZeroDay = (int) simTime / 24; // treat 1 sim sec as 1 hour
int maxDayNo = barZeroDay + MAX_BARS;
if (barZeroDay < 0 || maxDayNo >= Schedule.N_SCHEDULES)
return; // invalid day number; do nothing
Dimension dim = getSize();
int maxX = dim.width - 1, maxY = dim.height - 1;
barLeftX = maxX / 7;
centreY = maxY / 2;
if (width != dim.width || height != dim.height)
width = dim.width;
height = dim.height;
imageBuffer = createImage(width, height);
graphicsBuffer = imageBuffer.getGraphics();
graphicsBuffer.clearRect(0, 0, width, height);
graphicsBuffer.setColor(new Color(0, 0, 0));
int hour = (int) simTime - barZeroDay * 24;
float dayZeroOffsetAngle = (float) (((hour - 12) / 24.0) * DEGREES_PER_DAY_BAR);
for (int barNo = 0; barNo <= MAX_BARS; barNo++)
int dayNo = barZeroDay + barNo;
int daysEarlier = DAY_BARS_PER_90_DEGREES - barNo;
float dayAngle = daysEarlier * DEGREES_PER_DAY_BAR
+ dayZeroOffsetAngle;
float z = carouselRadius * (float) Math.cos(0);
float y = carouselRadius * (float) Math.sin(dayAngle / 57.3);
float x = z / 20;
DayBar dayBar = new DayBar(dayNo, schedule.getDaySchedule(dayNo),
graphicsBuffer, barLeftX, centreY, x, y);
visibleScheduleBars[barNo] = dayBar;
for (int barNo = 0; barNo <= MAX_BARS; barNo++)
visibleScheduleBars[barNo].paintBar(oldSelection, selection);
g.drawImage(imageBuffer, 20, 0, null);
g.setColor(Color.WHITE);
g.drawRect(40,25,375,50);
g.fillRect(40,25,375,50);
g.drawRect(40,205,375,65);
g.fillRect(40,205,375,65);
Point bigArrowPoint1 = new Point(0,0);
Point bigArrowPoint2 = new Point(0,0);
Point bigArrowPoint3 = new Point(0,0);
Point smallArrowPoint1 = new Point(0,0);
Point smallArrowPoint2 = new Point(0,0);
Point smallArrowPoint3 = new Point(0,0);
bigArrowPoint1 = new Point(100,100); //top left
bigArrowPoint2 = new Point(100,100); //middle right
bigArrowPoint3 = new Point(100,100); //bottom left
smallArrowPoint1 = new Point(100,100); //top left
smallArrowPoint2 = new Point(100,100); //middle right
smallArrowPoint3 = new Point(100,100); //bottom left
Polygon bigArrow = new Polygon();
bigArrow.addPoint(bigArrowPoint1.x+310,bigArrowPoint1.y-25);
bigArrow.addPoint(bigArrowPoint2.x+320,bigArrowPoint2.y-25);
bigArrow.addPoint(bigArrowPoint3.x+315,bigArrowPoint3.y-30);
Polygon smallArrow = new Polygon();
smallArrow.addPoint(smallArrowPoint1.x+310,smallArrowPoint1.y+105);
smallArrow.addPoint(smallArrowPoint2.x+320,smallArrowPoint2.y+105);
smallArrow.addPoint(smallArrowPoint3.x+315,smallArrowPoint3.y+110);
g.setColor(Color.black);
g.fillPolygon(bigArrow);
g.drawPolygon(bigArrow);
g.setColor(Color.black);
g.fillPolygon(smallArrow);
g.drawPolygon(smallArrow);
addMouseListener(this);
addMouseMotionListener(this);
* Sets a new percentage value for the animation speed of the application.
* @param animationSpeed desired animation speed.
void setAnimationSpeed(double animationSpeed)
this.animationSpeed = animationSpeed;
* Returns the current speed of the animation, as a percentage.
* @return the current speed of the animation, as a percentage.
private double getAnimationSpeed()
return animationSpeed;
* Finds and returns a slot based upon the specified mouse position
* coordinates.
* @param x x coordinate of selection, relative to centre-left of schedule
* bar display.
* @param y y coordinate of selection, relative to centre-left of schedule
* bar display.
* @return a Slot value corresponding to the selected slot if available. If
* no slot was selected, null is returned.
private Slot findSlot(int x, int y)
int barNumber = findDayBarNumber(x, y);
if (barNumber == -1)
return null;
int foo = (x - (int) visibleScheduleBars[barNumber].getLeftAngleX());
int bar = (barNumber * Slot.SLOTS_PER_DAY + foo / SLOT_WIDTH);
return new Slot(bar + barZeroDay * Slot.SLOTS_PER_DAY);
* Finds the day bar specified by the provided mouse coordinates, and then
* returns its number.
* @param x x coordinate of mouse position.
* @param y y coordinate of mouse position.
* @return the number of the day bar, or -1 if no day bar was found at the
* specified mouse coordinates.
private int findDayBarNumber(int x, int y)
for (int barNo = MAX_BARS - 1; barNo >= 0; barNo--)
DayBar dayBar = visibleScheduleBars[barNo];
if (x >= dayBar.getLeftAngleX() && x <= dayBar.getBarRightAngleX()
&& y >= dayBar.getBarBottomAngleY()
&& y <= dayBar.getBarTopAngleY())
return barNo;
return -1;
* EVENT HANDLER METHODS *
* This event handler is unused.
* @param evt ignored.
public void mouseClicked(MouseEvent evt)
* This event handler is unused.
* @param evt ignored.
public void mouseExited(MouseEvent evt)
* This event handler is unused.
* @param evt ignored.
public void mouseEntered(MouseEvent evt)
* This event handler is unused.
* @param evt ignored.
public void mouseMoved(MouseEvent evt)
* Called when the mouse button is released.
* 1. Displays the right click menu if the right mouse button was clicked 2.
* Updates 'last click position' fields 3. Modifies end time of current
* selection
* @param evt mouse event information.
public void mouseReleased(MouseEvent evt)
if (evt.isPopupTrigger()) // was the menu requested?
displayRightClickMenu(evt);
// Update 'last click position' fields
lastMouseClickPositionX = evt.getX();
lastMouseClickPositionY = evt.getY();
if (pressedButton == MouseEvent.BUTTON3)
{ // selecting
int barPositionX = lastMouseClickPositionX - barLeftX;
int barPositionY = centreY - lastMouseClickPositionY;
periodEndTime = findSlot(barPositionX, barPositionY);
selection.setEnd(periodEndTime);
* Called when mouse button is pressed. Updates slot with schedulable.
* @param evt mouse event information.
public void mousePressed(MouseEvent evt)
if (evt.isPopupTrigger()) // was the menu requested?
displayRightClickMenu(evt);
lastMouseClickPositionX = evt.getX();
int barPositionX = lastMouseClickPositionX - barLeftX;
lastMouseClickPositionY = evt.getY();
int barPositionY = centreY - lastMouseClickPositionY;
periodStartTime = findSlot(barPositionX, barPositionY);
if (periodStartTime == null)
return;
if (periodStartTime.getDayNumber() < 0
|| periodStartTime.getDayNumber() >= Schedule.N_SCHEDULES)
return; // boundary case.
pressedButton = evt.getButton(); // 1=left, 2=mid or wheel 3= right
if (pressedButton == MouseEvent.BUTTON1)
{ // dragging
// but maybe creating new selection too so...
oldSelection = selection;
currentPeriodEnd = barPositionY;
currentPeriodWidth = 0;
dayDrag = new Period(periodStartTime, periodStartTime);
int s = periodStartTime.getSlotNumber();
if (!createPeriods)
return;
daySched = schedule.getDaySchedule(periodStartTime.getDayNumber());
draggedSlotBoundary = daySched.findNearBoundary(s, 3);
if (draggedSlotBoundary < 0)
if (s < 0 || s >= Slot.SLOTS_PER_DAY)
return; // boundary case
// Not near a boundary, so create seed slot for new
// period
if (daySched.getSlot(s) == palette.get(0))
daySched.setSlot(s, palette.get(1));
else
daySched.setSlot(s, palette.get(0));
draggedSlotBoundary = s;
} else
Schedulable SS = daySched.getSlot(draggedSlotBoundary);
if (draggedSlotBoundary < s)
daySched.insert(SS, draggedSlotBoundary, s);
else
daySched.insert(SS, s, draggedSlotBoundary);
else if (pressedButton == MouseEvent.BUTTON3)
{ // selecting
oldSelection = selection;
periodStartTime = findSlot(barPositionX, barPositionY);
selection = new Period(periodStartTime, periodStartTime);
* Called when the mouse is moved while a button on it is held down.
* Changes the end time of the selected Period.
* @param evt information about the current mouse cursor state, e.g.
* position.
public void mouseDragged(MouseEvent evt)
lastMouseClickPositionX = evt.getX();
int barPositionX = lastMouseClickPositionX - barLeftX;
lastMouseClickPositionY = evt.getY();
int barPositionY = centreY - lastMouseClickPositionY;
if (pressedButton == MouseEvent.BUTTON1)
{ // dragging
Slot selectedSlot = findSlot(barPositionX, barPositionY);
currentPeriodWidth = barPositionY - currentPeriodEnd;
if (draggedSlotBoundary < 0 || selectedSlot == null)
return; // out of bounds
if (!createPeriods)
return;
for (int s = draggedSlotBoundary + 1; s < selectedSlot.getSlotNumber(); s++)
daySched.setSlot(s, daySched.getSlot(draggedSlotBoundary));
dayDrag.setEnd(selectedSlot); // or could use Selection instead
if (pressedButton == MouseEvent.BUTTON3)
{ // selecting
Slot selectedSlot = findSlot(barPositionX, barPositionY);
selection.setEnd(selectedSlot);
* Displays the right click menu.
* @param evt information about the current mouse cursor state, e.g.
* position.
private void displayRightClickMenu(MouseEvent evt)
// Calculate positions of mouse click relative to centre-left of
// schedule bars display.
lastRightClickPositionX = evt.getX() - barLeftX;
lastRightClickPositionY = centreY - evt.getY();
// identify bar to modify
DayBar db = null;
for (int barNo = MAX_BARS - 1; barNo >= 0; barNo--)
DayBar currentBar = visibleScheduleBars[barNo];
if (lastRightClickPositionX >= currentBar.getLeftAngleX()
&& lastRightClickPositionX <= currentBar.getBarRightAngleX()
&& lastRightClickPositionY >= currentBar.getBarBottomAngleY()
&& lastRightClickPositionY <= currentBar.getBarTopAngleY())
db = currentBar;
break;
if (db == null)
return;
// identify 'selected' section/setting
Slot t = findSlot(lastRightClickPositionX, lastRightClickPositionY);
int slot = t.getSlotNumber();
if (slot < 0)
return; // out of bounds
// find out colour of selected section
selectedDaySchedule = db.getDaySchedule();
Color colour = selectedDaySchedule.getSlot(slot).colour;
// go left/back; find earliest section with this colour
firstSlotNumber = slot;
while (true)
Color currentSlotColour = selectedDaySchedule
.getSlot(firstSlotNumber).colour;
if (!currentSlotColour.equals(colour))
firstSlotNumber++;
break;
if (firstSlotNumber > 0) // lower boundary case
firstSlotNumber--;
else
break;
// go right/forwards; find latest section with this colour
lastSlotNumber = slot;
while (true)
Color currentSlotColour = selectedDaySchedule
.getSlot(lastSlotNumber).colour;
if (!currentSlotColour.equals(colour))
break;
if (lastSlotNumber < Slot.SLOTS_PER_DAY - 1) // upper bound case
lastSlotNumber++;
else
break;
rightClickMenu.show(evt.getComponent(), evt.getX(), evt.getY());
* Called when the user selects an item from the right click menu. Changes
* the Schedulable for the selected Period to the requested value.
* @param evt an ActionEvent, providing information about the command that
* was selected from the menu.
public void actionPerformed(ActionEvent evt)
String command = evt.getActionCommand();
if (command.equals("Copy day schedule"))
if (!allowPaste) {
* If the user copies a day schedule, we must enable
* the paste option in the menu.
JMenuItem menuItem7 = new JMenuItem("Paste day schedule",
new ImageIcon("paste.png"));
menuItem7.addActionListener(this);
rightClickMenu.add(menuItem7);
allowPaste = true; // only do this once
int barNo = findDayBarNumber(
lastRightClickPositionX, lastRightClickPositionY);
DayBar db = visibleScheduleBars[barNo];
/* It's important that we copy the day schedule by value, not by
* reference. If we just copy a reference, then if we 'copy' a bar,
* changing the source bar after the copy operation will change what
* is ultimately 'pasted'.
copiedDaySchedule = db.getDaySchedule().clone();
else if (command.equals("Paste day schedule"))
int barNo = findDayBarNumber(
lastRightClickPositionX, lastRightClickPositionY);
DayBar db = visibleScheduleBars[barNo];
db.getDaySchedule().insert(
copiedDaySchedule, 0, Slot.SLOTS_PER_DAY-1);
else if (command.equals("Reset day schedule"))
int barNo = findDayBarNumber(
lastRightClickPositionX, lastRightClickPositionY);
DayBar db = visibleScheduleBars[barNo];
db.getDaySchedule().insert(
defaultDaySchedule, 0, Slot.SLOTS_PER_DAY-1);
else
* Identifies which new Schedulable was requested. This Schedulable
* will replace the selected Period's Schedulable value.
* For instance, if "Away" was selected from the menu, then we must
* fetch the "Away" Schedulable.
Schedulable schedulable;
if (evt.getActionCommand().equals("Set climate to 'Away'"))
schedulable = palette.get(2); // the 'away' Schedulable
else if (evt.getActionCommand().equals("Set climate to 'Sleeping'"))
schedulable = palette.get(0); // the 'sleeping' Schedulable
else if (evt.getActionCommand().equals("Set climate to 'Busy'"))
schedulable = palette.get(1);
else if (evt.getActionCommand().equals("Set climate to 'Relaxing'"))
schedulable = palette.get(3);
else
// Should never occur
throw new Error("Unrecognised command.");
// Now fill the selected Period with the requested Schedulable.
selectedDaySchedule.insert(
schedulable, firstSlotNumber, lastSlotNumber);
* User is able to edit schedule when boolean is set to true
* @param createPeriods sets state of interaction with day schedules
void setCreatePeriods(boolean createPeriods) {
this.createPeriods = createPeriods;
}Here is the Apple document covering Magic Mouse faults. Symptom number 6 seems the one to check out. Is this a longstanding or a recently developed fault?
And, of course, is it still under the 12 month warranty.
One thing to pay particular attention to is the proximity of electronic items such as cradles for phones and the like which if active, can interfere with the signal.
Troubleshooting wireless mouse and keyboard issues
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