Examples of org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Control
ipse.org/swt/snippets/#control">Control snippets @see SWT Example: ControlExample @see Sample code and further information @noextend This class is not intended to be subclassed by clients.

      LayoutUtils.positionShell(getShell(), false);
    }


    private void validateInput() {
      boolean valid = fLinkInput.getText().length() > 0 && fNameInput.getText().length() > 0;
      Control button = getButton(IDialogConstants.OK_ID);
      button.setEnabled(valid);
      setMessage("Please enter the name and link of the bookmark.", IMessageProvider.INFORMATION);
    }

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  public void addOpenListener(IOpenListener listener) {
    fOpenListeners.add(listener);
  }


  private void internalHandleOpen() {
    Control control = getControl();
    if (control != null && !control.isDisposed()) {
      ISelection selection = getSelection();
      internalFireOpen(new OpenEvent(this, selection));
    }
  }

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   * <code>NULL</code> if none.
   */
  public static IWorkbenchWindow getWindowAtCursor() {


    /* Get the Control at the Cursor position */
    Control cursorControl = Display.getDefault().getCursorControl();
    if (cursorControl == null)
      return null;


    /* Return Window that belongs to Cursor-Shell */
    Shell cursorShell = cursorControl.getShell();
    IWorkbenchWindow windows[] = PlatformUI.getWorkbench().getWorkbenchWindows();
    for (IWorkbenchWindow workbenchWindow : windows) {
      if (workbenchWindow.getShell().equals(cursorShell))
        return workbenchWindow;
    }

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    }
  }


  private void validateInput() {
    boolean valid = fNameInput.getText().length() > 0;
    Control button = getButton(IDialogConstants.OK_ID);
    button.setEnabled(valid);
  }

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      LayoutUtils.positionShell(getShell(), false);
    }


    private void validateInput() {
      boolean valid = fLinkInput.getText().length() > 0 && fNameInput.getText().length() > 0;
      Control button = getButton(IDialogConstants.OK_ID);
      button.setEnabled(valid);
    }

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      LayoutUtils.positionShell(getShell(), false);
    }


    private void validateInput() {
      boolean valid = fNameInput.getText().length() > 0;
      Control button = getButton(IDialogConstants.OK_ID);
      button.setEnabled(valid);
    }

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    /* Select All */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Select All in Text Widget */
        if (focusControl instanceof Text) {
          ((Text) focusControl).selectAll();
        }


        /* Select All in Tree */
        else {
          ((Tree) fViewer.getControl()).selectAll();
          fViewer.setSelection(fViewer.getSelection());
        }
      }
    });


    /* Delete */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.DELETE.getId(), new Action() {
      @Override
      public void run() {
        fViewer.getControl().getParent().setRedraw(false);
        try {
          new DeleteTypesAction(fViewer.getControl().getShell(), (IStructuredSelection) fViewer.getSelection()).run();
        } finally {
          fViewer.getControl().getParent().setRedraw(true);
        }
      }
    });


    /* Reload */
    fViewSite.getActionBars().setGlobalActionHandler(RetargetActions.RELOAD, new Action() {
      @Override
      public void run() {
        new ReloadTypesAction((IStructuredSelection) fViewer.getSelection(), fViewSite.getShell()).run();
      }
    });


    /* Mark All Read */
    fViewSite.getActionBars().setGlobalActionHandler(RetargetActions.MARK_ALL_READ, new Action("Mark all Folders as Read") {
      @Override
      public void run() {
        IFolder root = fSelectedBookMarkSet;
        new MarkReadAction(new StructuredSelection(root)).run();
      }
    });


    /* Cut */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.CUT.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Cut in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).cut();
      }
    });


    /* Copy */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.COPY.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Copy in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).copy();
      }
    });


    /* Paste */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.PASTE.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Paste in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).paste();
      }

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   * <code>NULL</code> if none.
   */
  public static IWorkbenchWindow getWindowAtCursor() {


    /* Get the Control at the Cursor position */
    Control cursorControl = Display.getDefault().getCursorControl();
    if (cursorControl == null)
      return null;


    /* Return Window that belongs to Cursor-Shell */
    Shell cursorShell = cursorControl.getShell();
    IWorkbenchWindow windows[] = PlatformUI.getWorkbench().getWorkbenchWindows();
    for (IWorkbenchWindow workbenchWindow : windows) {
      if (workbenchWindow.getShell().equals(cursorShell))
        return workbenchWindow;
    }

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    /* Select All */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Select All in Text Widget */
        if (focusControl instanceof Text) {
          ((Text) focusControl).selectAll();
        }


        /* Select All in Tree */
        else {
          ((Tree) fViewer.getControl()).selectAll();
          fViewer.setSelection(fViewer.getSelection());
        }
      }
    });


    /* Delete */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.DELETE.getId(), new Action() {
      @Override
      public void run() {
        fViewer.getControl().getParent().setRedraw(false);
        try {
          new DeleteTypesAction(fViewer.getControl().getShell(), (IStructuredSelection) fViewer.getSelection()).run();
        } finally {
          fViewer.getControl().getParent().setRedraw(true);
        }
      }
    });


    /* Reload */
    fViewSite.getActionBars().setGlobalActionHandler(RetargetActions.RELOAD, new Action() {
      @Override
      public void run() {
        new ReloadTypesAction((IStructuredSelection) fViewer.getSelection(), fViewSite.getShell()).run();
      }
    });


    /* Cut */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.CUT.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Cut in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).cut();
      }
    });


    /* Copy */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.COPY.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Copy in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).copy();
      }
    });


    /* Paste */
    fViewSite.getActionBars().setGlobalActionHandler(ActionFactory.PASTE.getId(), new Action() {
      @Override
      public void run() {
        Control focusControl = fViewer.getControl().getDisplay().getFocusControl();


        /* Paste in Text Widget */
        if (focusControl instanceof Text)
          ((Text) focusControl).paste();
      }

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  /* Support for focusless scrolling */
  private void hookFocuslessScrolling(final Display display) {
    display.addFilter(SWT.MouseWheel, new Listener() {
      public void handleEvent(Event event) {
        Control control = display.getCursorControl();


        /* Control must be non-focus undisposed */
        if (control == null || control.isDisposed() || control.isFocusControl())
          return;


        /* Pass focus to control and disable event if allowed */
        boolean isBrowser = SWT_BROWSER_WIN.equals(control.getClass().getName());
        if (isBrowser || control.getData(FOCUSLESS_SCROLL_HOOK) != null) {


          /* Break Condition */
          control.setFocus();


          /* Re-Post Event to Cursor Control */
          event.doit = false;
          event.widget = control;
          display.post(event);

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