Develop Reference

How to tell a FieldEditorPreferencePage to invalidate/redraw programatically?

I defined a custom FieldEditorPreferencePage. In createFieldEditors method I construct a simple interface with a custom FieldEditor that holds button that loads a file. When a user loads the file the interface region (where the button stands) need to change and show other specific gui. How to invalidate the FieldEditorPreferencePage? I used the layout() method of the parent composite but nothing happens. What am I doing wrong here?
public class MyPage extends FieldEditorPreferencePage {
...
private Composite fieldEditorParent;
private boolean fileLoaded = false;
#Override
protected void createFieldEditors() {
fieldEditorParent = this.getFieldEditorParent();
MyFieldEditor compositeFieldEditor = new MyFieldEditor(fieldEditorParent) {
if(fileLoaded) {
//draw file content
} else {
Button chooseButton = new Button(buttonsComposite, SWT.NONE);
chooseButton.addSelectionListener(new SelectionAdapter() {
#Override
public void widgetSelected(SelectionEvent e) {
//choose file
fileLoaded = true;
//invalidate page <-- THIS DOES NOT WORK!
fieldEditorParent.layout(true, true);
}
}
}
}
}

Can't Use System Menubar Javafx

I want to add a JavaFX Menu Bar to a Stage, but have it use the System Menubar for Mac.
My problem is that using:
menuBar.useSystemMenuBarProperty().set(true);
does not work. I believe that the problem is because my main method isn't part of a JavaFX Application. My main method looks like this:
public class SURPG_Launcher {
public static com.apple.eawt.Application macApp;
public static void main(String[] args) {
if(Toolbox.isMac()) {
initMac(args);
} else {
Application.launch(SURPG_Main.class, args);
}
}
private static void initMac(String[] args) {
System.out.println("MacOS System detected!");
macApp = com.apple.eawt.Application.getApplication();
macApp.setPreferencesHandler(new PreferencesHandler(){
#Override
public void handlePreferences(PreferencesEvent arg0) {
Platform.runLater(() -> {
Stage prefs = new Stage();
prefs.setMinHeight(200);
prefs.setMinWidth(200);
prefs.show();
});
}
});
Application.launch(SURPG_Mac.class, args);
}
}
SURPG_Mac.class and SURPG_Main.class are classes that extend the JavaFX Application.
I have another class that sets the GUI, a stage with a BorderPane. I have another class with public static methods that can be called to set the Menubars, as such:
public class MenuControl {
public static MenuBar menuBar;
public static Menu menuFile;
public static Menu menuGame;
public static Menu menuTools;
public static MenuItem save;
public static void initMenusMac() {
menuBar = new MenuBar();
Platform.runLater(() -> {
menuBar.useSystemMenuBarProperty().set(true);
});
menuFile = new Menu("File");
menuGame = new Menu("Game");
menuTools = new Menu("Tools");
save = new MenuItem("Save");
menuFile.getItems().add(save);
menuBar.getMenus().addAll(menuFile, menuGame, menuTools);
GUI_Main.totalLay.setTop(menuBar);
}
public static void initMenus() {
menuBar = new MenuBar();
menuFile = new Menu("File");
menuGame = new Menu("Game");
menuTools = new Menu("Tools");
save = new MenuItem("Save");
menuFile.getItems().add(save);
menuBar.getMenus().addAll(menuFile, menuGame, menuTools);
GUI_Main.totalLay.setTop(menuBar);
}
}
My final point is that I CANNOT change it so the main method is in either SURPG_Mac or SURPG_Main, due to a different compatibility problem with Mac integration.
Can anyone help me with this?
Thank you so much in advance!

Have a look at this probject: https://github.com/codecentric/NSMenuFX It allows you to have a more mac-like menu bar. But you will probably have to clean up your somewhat strange project setup as well before you can use it.

Multipage: Navigator & Navigation setup -> "Component must be attached to a session when getConnectorId() is called for the first time"

i cannot get a navigator to run within my project.
i always get the Error
"Component must be attached to a session when getConnectorId() is called for the first time"
i followed several examples where it ran out of the box with nealy the exact same setup but i cannot get it to run within my environment and i don't know why.
This is my MainUI
#SpringUI
public class MainUI extends UI implements View{
HorizontalLayout root;
#Override
protected void init(VaadinRequest request) {
root = new HorizontalLayout();
VerticalLayout menu = this.createMenuBar();
menu.setWidth("20%");
root.addComponents(menu);
Panel viewPanel = new Panel();
root.addComponentsAndExpand(viewPanel);
setContent(root);
final Navigator navigator = new Navigator(this, viewPanel);
navigator.addView("Food", FoodView.class);
navigator.addView("Meal", MealView.class);
navigator.addView("", MainView.class);
// even with
//navigator.addView("Main", MainView.class);
//navigator.navigateTo("Main");
// i get the same error
}
#Override
public void enter(ViewChangeEvent event) {
// TODO
}
private VerticalLayout createMenuBar() {
VerticalLayout menuBar = new VerticalLayout();
for(String s: new String[] {"Food", "Meal"}) {
menuBar.addComponents(this.createNavigationButton(s, this.getNavigator()));
}
return menuBar;
}
private Button createNavigationButton(final String state, final Navigator navigator) {
return new Button("Go go" + state, new Button.ClickListener() {
#Override
public void buttonClick(ClickEvent event) {
navigator.navigateTo(state);
}
});
}
}
This is my Main/Food/Meal View, they are only stumps with only a label because i just wanted to test a Multipage example
#SpringView(name = MainView.VIEW_NAME)
public class MainView extends UI implements View {
public static final String VIEW_NAME = "Main";
#Override
protected void init(VaadinRequest request) {
VerticalLayout root = new VerticalLayout();
setContent(root);
Label lbl = new Label("MainView");
root.addComponent(lbl);
}
#Override
public void enter(ViewChangeEvent event) {
}
}

How to set image datasource in vaadin

I have a horizontal split panel in which I want to show the image selected in combobox but unable to set the datasource for image file.
FilesystemContainer container = new FilesystemContainer(new File("C:/myData/wallpaper"));
ComboBox box = new ComboBox("Documents", container);
#Override
protected void init(VaadinRequest request) {
setContent(box);
com.vaadin.ui.HorizontalSplitPanel horizontalSplitPanel = new com.vaadin.ui.HorizontalSplitPanel();
setContent(horizontalSplitPanel);
horizontalSplitPanel.addComponent(box);
//horizontalSplitPanel.addComponent(label);
final Image image = new Image();
horizontalSplitPanel.addComponent(image);
box.addValueChangeListener(new ValueChangeListener() {
#Override
public void valueChange(ValueChangeEvent event) {
image.setData(event.getProperty().getValue());
///label.set//setPropertyDataSource( (Property) ImageIO.read((ImageInputStream) new TextFileProperty((File) event.getProperty().getValue())));
}
});
box.setImmediate(true);
How can I set datasource for images.I'm very new in Vaadin.

I suggest this way:
#Override
public void valueChange(ValueChangeEvent event) {
image.setSource(new FileResource((File)box.getValue()));
}

java program flow on example of DynamicReports and progressbar

i use DynamicReports library for make reports for my app. Createing report takes some time and i decided create custom progress bar while reports has not been created. Question after code examples.
progress bar class:
public class ProgressDialog implements DialogWrapper{
private JFrame iFrame;
private JDialog iDialog;
private JPanel pane;
private final JProgressBar aJProgressBar = new JProgressBar(0, 100);
public ProgressDialog(){
onCreate();
}
#Override
public void onCreate() {
iFrame = new JFrame("Создание отчета");
iDialog = new JDialog(iFrame, true);
pane = new JPanel();
aJProgressBar.setIndeterminate(true);
pane.add(aJProgressBar, BorderLayout.NORTH);
iDialog.add(pane, BorderLayout.CENTER);
iDialog.setTitle("Создание отчета");
iDialog.setSize(300, 150);
iDialog.setResizable(false);
iDialog.setVisible(true);
return;
}
#Override
public void fillData() {}
#Override
public void onSubmit() {}
protected void onCancel(){
iDialog.setVisible(false);
iDialog.dispose();
}
public void cancel(){
onCancel();
}
}
Report abstract class
public abstract class AbstractReportMain<T extends ReportDesign<U>, U extends ReportData> {
private ProgressDialog pd;
public AbstractReportMain() {
pd = new ProgressDialog();
build();
}
protected void build() {
try {
JasperReportBuilder reportBuilder = DynamicReports.report();
U data = getReportData();
if (data != null) {
reportBuilder.setDataSource(data.createDataSource());
}
getReportDesign().configureReport(reportBuilder, data);
pd.cancel();
reportBuilder.show(false);
} catch (DRException e) {
e.printStackTrace();
}
}
protected U getReportData() {
return null;
}
protected abstract T getReportDesign();
}
Question: when i create ProgressDialog, program flow stops while i do not close dialog. Why it's happen, how this behaviour called and where i can read about it? How it use and маке it work for me. Thanks.

I believe your problem is that you are not creating a new thread for your progress dialog. Here is an example that will help you. Modal Progress Dialog example