how can i get the exact Mouse-Position in JavaFX?
I can add a Mouse-Event on a Button like this:
btnTriangle.setOnMouseClicked(new EventHandler<MouseEvent>()
{
#Override
public void handle(MouseEvent me)
{
//I NEED TO GET THE X and Y Coordinates from the Mouse
}
});
I need the X and Y Value to show there some special Content...
Thank you for your help!
Just need to add 2 lines in your code to get them as James_D said:
btnTriangle.setOnMouseClicked(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent me) {
System.out.println("Coordinate X -> " + me.getX());
System.out.println("Coordinate Y -> " + me.getY());
}
});
Related
I'm revisiting LibGDX game programming and I am unfortunately having to re-learn stuff I used to know.
I'm currently using Tiled Map Editor to make a very simple Donkey Kong style level. I have around 20 rectangles in total for the level.
I've created a box2d world in my main GameScreen class and have a for loop to get the rectangle objects into the world and debugrenderer.
My problem is that only the bottom (and first) rectangle I drew is showing up. I have checked the scale, also I put a println() which tells me the object information has been parsed with all the rectangles info showing correct (ie. the rectangles x,y,w,h values) but as I say, only one rectangle shows up on the debugrenderer.
I've just got back into programming after around 6month break and so I'm hoping i've missed something simple. The same code in my old projects still works fine as I've tested some.
Here is my code, any help is massively appreciated. Thanks
public class GameScreen implements Screen {
SpriteBatch spriteBatch;
OrthographicCamera cam;
Viewport v;
TmxMapLoader mapLoader;
TiledMap map;
OrthogonalTiledMapRenderer mapRenderer;
World world;
Box2DDebugRenderer b2dr;
float mapScale = 10f/140f;
public GameScreen(){
spriteBatch = new SpriteBatch();
cam = new OrthographicCamera();
v = new FitViewport(Constants.V_WIDTH, Constants.V_HEIGHT, cam);
cam.setToOrtho(false, v.getWorldWidth(), v.getWorldHeight());
mapLoader = new TmxMapLoader();
map = mapLoader.load("level1.tmx");
mapRenderer = new OrthogonalTiledMapRenderer(map, mapScale);
world = new World(new Vector2(0,-9.8f), true);
b2dr = new Box2DDebugRenderer();
// box2d local variables
BodyDef bdef = new BodyDef();
PolygonShape shape = new PolygonShape();
FixtureDef fdef = new FixtureDef();
Body body;
// create platform object rectangles
for (MapObject object : map.getLayers().get(2).getObjects().getByType(RectangleMapObject.class)){
Rectangle rect = ((RectangleMapObject)object).getRectangle();
bdef.type = BodyDef.BodyType.StaticBody;
bdef.position.set(rect.getX() + rect.getWidth() / 2 * mapScale, rect.y + rect.getHeight() / 2 * mapScale);
body = world.createBody(bdef);
shape.setAsBox(rect.getWidth() / 2 * mapScale, rect.getHeight() / 2 * mapScale);
fdef.shape = shape;
body.createFixture(fdef);
}
}
#Override
public void show() {
}
#Override
public void render(float delta) {
update(delta);
clearScreen();
draw();
}
public void update(float dt){
mapRenderer.setView(cam);
}
public void clearScreen(){
Gdx.gl.glClearColor(1, 0, 0, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
}
public void draw(){
spriteBatch.setProjectionMatrix(cam.combined);
mapRenderer.render();
b2dr.render(world, cam.combined);
spriteBatch.begin();
spriteBatch.end();
}
#Override
public void resize(int width, int height) {
v.update(width, height);
}
#Override
public void pause() {
}
#Override
public void resume() {
}
#Override
public void hide() {
}
#Override
public void dispose() {
spriteBatch.dispose();
}
}
Sorry for wasting time here. I have fixed this.
It was just that I hadnt applied the scale of the map also to the x,y of the rectangles. So i change one line like so, and now it works:
bdef.position.set(rect.getX() * mapScale + rect.getWidth() / 2 * mapScale, rect.y * mapScale + rect.getHeight() / 2 * mapScale);
I'm developing an Android Wear app and content on the very bottom of the screen is cropped because of the black bar.
This video says that we should get the height of the bar like this:
#Override
public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
int barHeight = insets.getSystemWindowInsetBottom();
}
but in reality barHeight is always 0.
Right now I'm hacking it with
if (Build.MODEL.equals("Moto 360")) {
}
but that's not very future-proof. Any hints?
I use the window insets to determine the "chin" height in an Activity of a Wear app and in a watch face engine, so it does work. I've tested on a Moto 360. This is an extract from an Activity:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
#Override
public void onLayoutInflated(WatchViewStub stub) {
stub.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
#Override
public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
int chinHeight = insets.getSystemWindowInsetBottom();
// chinHeight = 30;
return insets;
}
});
}
});
}
I want to make a TextView appear little by little, like animation. The problem is, the animation is not smooth. It gets stuck for a little while sometimes and then resumes. Sometimes even worse, it goes back... I mean, the TextView gets bigger and bigger but suddenly gets smaller then bigger again. Could anyone help me?
private class UnfoldTask extends AsyncTask<Integer, Integer, Integer> {
View view;
public UnfoldTask(View v) {
this.view = v;
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = 0;
view.setLayoutParams(pa);
}
#Override
protected Integer doInBackground(Integer... maxHeight) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
while (pa.height < maxHeight[0]) {
pa.height += (int) (24 * getResources().getDisplayMetrics().density + 0.5f);
sleep(100);
publishProgress(pa.height);
}
return maxHeight[0];
}
private void sleep(int i) {
try {
Thread.sleep(i);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
#Override
protected void onProgressUpdate(Integer... values) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = values[0];
view.setLayoutParams(pa);
}
#Override
protected void onPostExecute(Integer result) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = result;
view.setLayoutParams(pa);
}
}
You should be using a scale animation for this. Here's an example:
ScaleAnimation animation = new ScaleAnimation(1, 2, 1, 2, centerX, centerY); // Scales from normal size (1) to double size (2). centerX/Y is the center of your text view. Change this to set the pivot point of your animation.
animation.setDuration(1000);
myTextView.startAnimation(animation);
You can use droidQuery to simplify this:
//this will set the height of myView to 0px.
$.with(myView).height(0);
//when you are ready to animate to height (in pixels):
$.with(myView).animate("{height:" + height + "}", new AnimationOptions());
Check the documentation if you want to get fancy - such as adding duration, and event callbacks. If you are still noticing non-smooth animation, consider adding the application attribute to your AndroidManifest:
android:hardwareAccelerated="true"
Given a TableView, i need to detect the doubleclick on a cell.
tableView.setOnMouseClicked(new EventHandler<MouseEvent>()
{
#Override
public void handle(MouseEvent event)
{
if(event.getClickCount()>1)
{
System.out.println("double clicked!");
}
}
});
How to determine the cell on which the mouse has been clicked?
Code example.
Run the "Example 12-11: Alternative Solution Of Cell Editing" of official tableview tutorial.
Replace the followings:
table.setEditable(false);
Callback<TableColumn, TableCell> cellFactory =
new Callback<TableColumn, TableCell>() {
public TableCell call(TableColumn p) {
TableCell cell = new TableCell<Person, String>() {
#Override
public void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
setText(empty ? null : getString());
setGraphic(null);
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
};
cell.addEventFilter(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
if (event.getClickCount() > 1) {
System.out.println("double clicked!");
TableCell c = (TableCell) event.getSource();
System.out.println("Cell text: " + c.getText());
}
}
});
return cell;
}
};
No need to EditingCell since your cells are uneditable. Cell factory is used for cell rendering. So one can put any node/control other than default Labeled using cell's setGraphics() method. IMO you cannot access the default cell directly so you should define your own cell factory to be able to put event filter on cell.
JavaFX allows you to set up multiple listeners per cell (I'm not saying that this is good or bad, just that you can). Each listener will execute your code if you have code set to execute a response to the specific listener for the specific column/row. To capture cell mouse clicks, I use the following:
table.setEditable(true);
table.getSelectionModel().setCellSelectionEnabled(true); // selects cell only, not the whole row
table.setOnMouseClicked(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent click) {
if (click.getClickCount() == 2) {
#SuppressWarnings("rawtypes")
TablePosition pos = table.getSelectionModel().getSelectedCells().get(0);
int row = pos.getRow();
int col = pos.getColumn();
#SuppressWarnings("rawtypes")
TableColumn column = pos.getTableColumn();
String val = column.getCellData(row).toString(); System.out.println("Selected Value, " + val + ", Column: " + col + ", Row: " + row);
if ( col == 2 ) { ... do something ... }
if ( col == 5 ) { ... do something ... }
if ( col == 6 ) { ... do something ... }
if ( col == 8 ) { ... do something ... }
}
}
});
You can see from the above code, on the columns I want to do something based on a mouse click, I have code:
if ( col == <int> ) { ... do something ... }
I also have those columns set to not allow editing:
thisCol.setEditable(false);
The rows that I want to edit I have .setEditable(true) but don't have a response included with a mouse click.
Cell editing defaults to 2 mouse clicks. You can change the above code to capture different mouse events on a cell, so you can still edit the cell with 2 mouse clicks, or open a URL, dialog box, etc., with any other mouse event determined by you. TableView allows you to determine your own functionality based on your imagination and programming skills. You're not stuck with "I can either edit it, or fire a mouse event with it." You can do both :)
Add the following in the body of your listener, with T the type of your table record :
#SuppressWarnings("rawtypes")
ObservableList<TablePosition> cells = tableView.getSelectionModel().getSelectedCells();
for( TablePosition< T, ? > cell : cells )
{
System.out.println( cell.getColumn());
}// for
Create your cell using a cell factory and in the cell factory which creates the cell node, place an mouse event handler or filter on the node rather than the tableView.
In my case i use next code
tableViewObject.setOnMouseClicked(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent t) {
if (t.getClickCount() == 2 && getSelectedItem() != null) {
SMPBLogger.logInfo("Double cliked", Boolean.TRUE);
if (listener != null) {
listener.doubleClicked(tableViewObject.this,getSelectedItem());
}
}
}
});
I am trying to register a click on a label, but i can't get it to work.
So far I've tried to set the SelectionAdapter to the label but click-events aren't fired.
Labels are not selectable Controls SelectionAdapter won't work for it. Try adding a MouseListener.
For sake of completeness, I'll just add this code sample:
label.addMouseListener(new MouseAdapter() {
#Override
public void mouseUp(MouseEvent event) {
super.mouseUp(event);
if (event.getSource() instanceof Label) {
Label label = (Label)event.getSource();
System.out.println("Label was clicked: " + label.getText());
}
}
});