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java awt color chooser does't show in proper way in JavaFx

#FXML
Private void handleItemBackAction(ActionEvent eve)
{
java.awt.Color color=JColorChooser.showDialog(null,"Select a color",java.awt.Color.CYAN);
String hex = Integer.toHexString(color.getRGB() & 0xffffff);
hex="#"+hex;
Text.setText(hex);
ShortcutButton.setStyle("-fx-background-color: " + hex + ";");
}
When I run this window and click on button at first time color chooser goes behind my actual pane.
When I click on button second time while running it shows at top of all other pane which is correct and so on it works properly.
Then why color chooser not shows in front first time on button click?

The first argument to JColorChooser.showDialog is the parent component of the dialog. You told that method to show the dialog with no parent, so it doesn't know about your other windows.
Instead of using JColorChooser.showDialog, you'll need to embed a JColorChooser instance inside a JavaFX dialog or window:
JColorChooser colorChooser = new JColorChooser(java.awt.Color.CYAN);
SwingNode colorChooserNode = new SwingNode();
colorChooserNode.setContent(colorChooser);
Alert dialog = new Alert(Alert.AlertType.NONE);
// Guarantees dialog will be above (and will block input to) mainStage.
dialog.initOwner(mainStage);
dialog.setTitle("Select a color");
dialog.getDialogPane().setContent(colorChooserNode);
dialog.getDialogPane().getButtonTypes().setAll(
ButtonType.OK, ButtonType.CANCEL);
Optional<ButtonType> response = dialog.showAndWait();
if (response.filter(r -> r == ButtonType.OK).isPresent()) {
int rgb = colorChooser.getColor().getRGB();
String hex = String.format("#%06x", rgb & 0xffffff);
Text.setText(hex);
ShortcutButton.setBackground(new Background(
new BackgroundFill(Color.valueOf(hex), null, null)));
} else {
System.out.println("User canceled");
}
Of course, you're probably better off using ColorPicker in your main window, so you don't have to create an explicit dialog at all:
final ColorPicker colorPicker = new ColorPicker(Color.CYAN);
colorPicker.setOnAction(e -> {
Color color = colorPicker.getValue();
String hex = String.format("#%02x02x02x",
(int) (color.getRed() * 255),
(int) (color.getGreen() * 255),
(int) (color.getBlue() * 255));
Text.setText(hex);
ShortcutButton.setBackground(
new Background(new BackgroundFill(color, null, null)));
});
myLayoutPane.getChildren().add(colorPicker);
As an aside, Java variable names should always start with a lowercase letter, to make them easy to distinguish from class names. Consider changing Text to text, and ShortcutButton to shortcutButton.

Libgdx scrollpane issue for a chatwindow class

I am having an issue with using a scrollpane in libgdx. It is going to be used for a chatwindow class. When you press enter the message will be added to the window and you will scroll to the latest posted message..However it doesn't. It misses one message and scrolls to the one before the latest message. Below I've posted the chatwindow class and the method that adds input to it. The textAreaholder is a table that holds everything. The chatField is where you input what you want to post to the chat. The chatarea is the textfield that then becomes added to the table. But as stated..it doesn't scroll properly, the error properly lies somewhere in the keyTyped method.
public ChatWindow(final Pipe<String> chatPipe) {
this.chatPipe = chatPipe;
messageFieldCounter = 0;
white = new BitmapFont(Gdx.files.internal("fonts/ChatWindowText.fnt"), false);
fontSize = white.getLineHeight();
white.scale(TEXT_SCALE);
final TextFilter filter = new TextFilter();
/* Making a textfield style */
textFieldStyle = new TextFieldStyle();
textFieldStyle.fontColor = Color.WHITE;
textFieldStyle.font = white;
textFieldStyle.focusedFontColor = Color.CYAN;
/*Area where all chat appears*/
textAreaHolder = new Table();
textAreaHolder.debug();
/*Applies the scrollpane to the chat area*/
scrollPane = new ScrollPane(textAreaHolder);
scrollPane.setForceScroll(false, true);
scrollPane.setFlickScroll(true);
scrollPane.setOverscroll(false, false);
/*Input chat*/
chatField = new TextField("", textFieldStyle);
chatField.setTextFieldFilter(filter);
/*Tries to make the textField react on enter?*/
chatField.setTextFieldListener(new TextFieldListener() {
#Override
public void keyTyped(final TextField textField, final char key) {
if (key == '\n' || key == '\r') {
if (messageFieldCounter <= 50) {
textAreaHolder.row();
StringBuilder message = new StringBuilder(); //Creates the message
message.append(chatField.getText()); //Appends the chatfield entry
TextArea chatArea = new TextArea(message.toString(), textFieldStyle); //Creates a chatArea with the message
chatArea.setHeight(fontSize + 1);
chatArea.setDisabled(true);
chatArea.setTextFieldFilter(filter);
textAreaHolder.add(chatArea).height(CHAT_INPUT_HEIGHT).width(CHAT_WIDTH);
scrollPane.scrollToCenter(0, 0, 0, 0);
//Scrolls to latest input
chatField.setText("");
//InputDecider.inputDecision(message.toString(), chatPipe); //TODO: Change the filter
//chatPipe.put(message.toString()); //TODO: testing
}
}
}
});

Problems could occur, because you're using scrollPane.scrollToCenter(float x, float y, float width, float height) with zero parameters:
scrollPane.scrollToCenter(0, 0, 0, 0);
scrollToCenter method requires that parameters to be correctly supplied. So, try to supply message bounds.
The second reason could be because you call scrollToCenter before table do layout itself. So, try overwrite table's layout method and call scrollToCenter after:
#Override
public void layout()
{
super.layout();
if (new_messages_added)
{
scrollPane.scrollToCenter(...)
}
}

JFreeChart not updating

Some background info: I'm creating a system to register lost, found and returned luggage. The amount of those 3 variable need to be in a LineChart to get a nice overview from how much luggage is lost etc. over an amount of time.
Now the problem:
When I create a LineChart and add it to a ChartPanel the LineChart represent a dataset. I've heard that when you edit/update your dataset, the chart is also automatically updated. Well I have an update button next to the chart which has to update the chart when clicked. Independent of the chart in an already existing JPanel/ChartPanel I also create a new frame which represent a ChartFrame.
When I click the update button a new frame pops-up and with the most recent data from the updated dataset. When I click it again, obviously another frame is created, but the already existing frame is also update while the chart in the JPanel isn't though they use the same dataset which is static and comes from a LineChart model.
Well here some code:
LineChartModel
//At the top of the document the dataset is initialize static
public static DefaultCategoryDataset dataset = null;
/*****************Other code omitted***********************/
/**
*
* Updates an already existing dataset
*
* #param dataset
* #return dataset
*/
public CategoryDataset updateDataset(DefaultCategoryDataset dataset) {
this.dataset = dataset;
// row keys...
final String rowLost = "Lost";
final String rowFound = "Found";
final String rowReturned = "Returned";
//Don't pay attention to this. It's setting the value for the dataset from different arrays which I know of the are filled correctly
int i = 0;
while (i < 12) {
dataset.setValue(lost[i], rowLost, type[i]);
System.out.println("There were " + lost[i]
+ " lost luggages in month: " + type[i]);
i++;
}
for (int j = 0; j < 12; j++) {
dataset.setValue(found[j], rowFound, type[j]);
System.out.println("There were " + found[j]
+ " found luggages in month: " + type[j]);
}
for (int j = 0; j < 12; j++) {
dataset.setValue(returned[j], rowReturned, type[j]);
System.out.println("There were " + returned[j]
+ " returned luggages in month: " + type[j]);
}
return dataset;
}
The LineChart Class with his constructor
LineChartModel model = new LineChartModel();
public ChartPanel chartPanel;
/**
* Creates a new demo.
*
* #param title the frame title.
*/
public LineChart(final String title, LineChartModel m) {
m = model;
m.selectRange();
m.createDataset();
final JFreeChart chart = createChart(m.dataset);
chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
}
ChartController
First the params of the constructor
public ChartController(final ManCharts v, final LineChartModel m) {
view = v;
model = m;
And here the actionlistener of the button.
//Select a range by sumbitting the variables
v.date.btnSubmit.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent arg0) {
//selectRange select all the data between 2 dates but isn't important for this problem
m.selectRange(/*v.date.dateChooserFrom, v.date.dateChooserTo*/);
//updateDataset updates the dataset from the LineChartModel which is static
m.updateDataset(m.dataset);
//The data in the chart should already be updated but here I'm trying to replace the current chart by a new one
v.chart.chartPanel = new ChartPanel(v.chart.createChart(m.dataset));
//This is the new chart which does automatically update when the button is pressed
JFreeChart chart = ChartFactory.createLineChart("Something chart", "Date", "Value", m.dataset);
ChartFrame frame = new ChartFrame("New line chart", chart);
frame.setVisible(true);
}
});
I really hope someone can help and that this problem is not too complicated without having the full code.
If you need more code or something. Just say so.
Thanks in advance!
EDIT!
I think it has to do something with how I create the chart. The chart in my JPanel which is created at the start of my application is created with an edited method (this is part of my LineChart class and stands below my constructor):
/**
* Creates a sample chart.
*
* #param dataset a dataset.
*
* #return The chart.
*/
public JFreeChart createChart(final CategoryDataset dataset) {
// create the chart...
final JFreeChart chart = ChartFactory.createLineChart(
"Luggage", // chart title
"Time", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
chart.setBackgroundPaint(Color.decode("#d6d9df"));
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setRangeGridlinePaint(Color.white);
// customise the range axis...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
// customise the renderer...
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
//renderer.setDrawShapes(true);
renderer.setSeriesStroke(
0, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {10.0f, 6.0f}, 0.0f
)
);
renderer.setSeriesStroke(
1, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {6.0f, 6.0f}, 0.0f
)
);
renderer.setSeriesStroke(
2, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {2.0f, 6.0f}, 0.0f
)
);
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
SOLVED
It had to do with another dataset that was created when clicking the submit button. So I've fixed the recreation and it's working now. Not really a chart problem, but just a problem in my model. Thanks for the help anyway!

ChartPanel implements an event listener that prompts it to repaint() itself when needed; JPanel does not. See the implementation of ChartChangeListener in chartChanged(), for example. When debugging, look for one instance of ChartPanel that shadows another or an errant use of JPanel.
Addednum Does the frame also need to be an ApplicationFrame or could it work in a JFrame?
Either is acceptable, as shown in this JFrame example or this ApplicationFrame example; both update dynamically. Note that Swing GUI objects should be constructed and manipulated only on the event dispatch thread.

Setting the component using setTabComponent

if I set a JButton as the tabComponent using
tabbedPane.setTabComponent(new JButton("test"));
The button covers a part of the tab while I can still see background of the tab.
But my requirement is to set this Button component on the tab completely as if the button should cover the whole tab as if there should be no access to that tab.

You might try using this method:
UIManager.put ( "TabbedPane.tabInsets", new Insets ( 0, 0, 0, 0 ) );
to remove tab insets and this one:
UIManager.put ( "TabbedPane.selectedTabPadInsets", new Insets ( 0, 0, 0, 0 ) );
to remove selected tab additional insets.
There is also a few other options that are usually taken from UI defaults:
highlight = UIManager.getColor("TabbedPane.light");
lightHighlight = UIManager.getColor("TabbedPane.highlight");
shadow = UIManager.getColor("TabbedPane.shadow");
darkShadow = UIManager.getColor("TabbedPane.darkShadow");
focus = UIManager.getColor("TabbedPane.focus");
selectedColor = UIManager.getColor("TabbedPane.selected");
textIconGap = UIManager.getInt("TabbedPane.textIconGap");
tabInsets = UIManager.getInsets("TabbedPane.tabInsets");
selectedTabPadInsets = UIManager.getInsets("TabbedPane.selectedTabPadInsets");
tabAreaInsets = UIManager.getInsets("TabbedPane.tabAreaInsets");
tabsOverlapBorder = UIManager.getBoolean("TabbedPane.tabsOverlapBorder");
contentBorderInsets = UIManager.getInsets("TabbedPane.contentBorderInsets");
tabRunOverlay = UIManager.getInt("TabbedPane.tabRunOverlay");
tabsOpaque = UIManager.getBoolean("TabbedPane.tabsOpaque");
contentOpaque = UIManager.getBoolean("TabbedPane.contentOpaque");
opaque = UIManager.get("TabbedPane.opaque");
You might want to modify some of them aswell to achieve what you need...

How to display frame only when required & set frame to appear on top all the time?

My program will alert users when data (stock name & price) in the database matches with the data (stock name and price) from Yahoo Finance. With the help of HarryJoy i'm able to implement a pop up notification.
Problem is the pop up location on the screen is based on the database loop (int db). The frame will pop even if data doesn't match.
How can I set a counter or some method to pop up the frame only when database data = Yahoo Finance data? Also, my notification panels appears to be behind the main frame. How can make the panels appear on top of my main frame?
I hope I've given enough information, please ask if still unclear. Any guidance will be appreciated! Thanks!
In the database (using code sample only to display my explanation in order, source code below).
Object 1 = match
Object 2 = doesn't match (hence there's a gap)
Object 3 = match
Object 4 = match
Screenshot:
Code:
for (int db=0; db<= rowCount; db++)
{
Object popSymbol = table.getModel().getValueAt(db, 0);
String popupSymbol = popSymbol.toString();
Object popValue = table.getModel().getValueAt(db, 1);
String str = popValue.toString();
double popStockValue = Double.valueOf(str).doubleValue();
String stockNameDB = popupSymbol;
StockPara stock = YahooStock.getInstance().getStockPrice(stockNameDB);
double stockPriceDB = Math.round(stock.getPrice());
final JFrame popUpFrame;
final JPanel popupPanel;
if (stockPriceDB == popStockValue)
{
String header = "Stock: " + stock.getTicker() + " is now # " + stock.getPrice();
String message = "";
popUpFrame = new JFrame();
popUpFrame.setSize(320,90);
popUpFrame.setUndecorated(true);
popUpFrame.getContentPane().setLayout(null);
popupPanel = new JPanel();
popupPanel.setBorder(new LineBorder(new Color(0, 0, 0)));
popupPanel.setBounds(0, 0, 320, 90);
getContentPane().add(popupPanel);
popupPanel.setBackground(new Color(255, 255, 224));
popupPanel.setLayout(null);
popUpFrame.add(popupPanel);
// Other labels, images, etc.
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Insets toolHeight = Toolkit.getDefaultToolkit().getScreenInsets(popUpFrame.getGraphicsConfiguration());
popUpFrame.setLocation(screenSize.width - popUpFrame.getWidth(), screenSize.height - toolHeight.bottom - (popUpFrame.getHeight() * (db+1)));
}
}

To solve your issue quickly, simply create an additional counter (int counter = 0;). Then use that counter instead of db to position your popUpFrame and right after that increment counter.
int counter = 0; // Initiate outside de loop
...
for(int db=0; db<= rowCount; db++) {
...
if (stockPriceDB == popStockValue) {
...
popUpFrame.setLocation(screenSize.width - popUpFrame.getWidth(),
screenSize.height - toolHeight.bottom - (popUpFrame.getHeight() * (counter+1)));
counter++;
}
}
To bring your frame to the front use:
popUpFrame.toFront()
and to force it to be always on top (although I would really not recommend that because it is more annoying for the user than anything else):
popUpFrame.setAlwaysOnTop(true);
This is not necessarily supported by all platforms.

for on top issue, use
notificationPanel.requestFocus();