Icons in TreeView disappear after editing

I have a weird bug where the graphic a TreeCell node is not displayed.

Java version "1.7.0_25", Windows 7 Ultimate.

The bug is not always reproducible. There are several housing starts of the application manifest.

Example 13-3 'implementation a Cell Factory' of http://docs.oracle.com/javafx/2/ui_controls/tree-view.htm and

Change the line

TreeItem < String > empLeaf = new TreeItem < String > (employee.getName ());

TO

TreeItem < String > empLeaf = new TreeItem < String > (employee.getName (), new (depIcon) ImageView);

for the nodes of the tree editable with icons. If we change the name of a node and attempts to change once again, but undoes the change

-by selecting another cell with the mouse - icon of the affected node will become empty. See the image.

I havemage

If you put a println statement in the method the TreeCell cancelEdit(), you see, there are more alive than expected TreeCells.

Code:

test of the package;

Import Java.util;

Import javafx.application. *;

Javafx.beans.property import. *;

Javafx.event import. *;

Javafx.scene import. *;

Javafx.scene.control import. *;

Javafx.scene.image import. *;

Javafx.scene.input import. *;

Javafx.scene.layout import. *;

Javafx.scene.paint import. *;

Javafx.stage import. *;

Javafx.util import. *;

SerializableAttribute public class TreeViewSample extends Application {}

private final node = rootIcon

new ImageView (new Image (getClass () .getResourceAsStream ("root.png")));

depIcon private final image =

New Image (getClass () .getResourceAsStream ("department.png"));

The used < employee > list = asList (paintings). < employee >

new employee ("Ethan Williams", "Sales"),

new employee ("Emma Jones", "Sales"),

new employee ("Michael Brown", "Sales"),

new employee ("Anna Black", "Sales"),

new employee ("Rodger York", "Sales"),

new employee ("Susan Collins", "Sales"),

new employee ("Mike Graham", "Support"),

new employee ("Judy Mayer", "Support"),

new employee ("Gregory Smith", "Support"),

new employee ("Jacob Smith," 'Accounting'),

new employee ("Isabella Johnson", 'Accounting'));

TreeItem < String > = rootNode

New TreeItem < String > ("mycompany HR", rootIcon);

Public Shared Sub main (String [] args) {}

Application.Launch (args);

}

@Override

{} public void start (steps)

rootNode.setExpanded (true);

for (employee: employees) {}

TreeItem < String > empLeaf = new TreeItem < String > (employee.getName (), new (depIcon) ImageView);

Boolean found = false;

for (TreeItem < String > depNode: rootNode.getChildren ()) {}

If (depNode.getValue () .contentEquals (employee.getDepartment ())) {}

depNode.getChildren () .add (empLeaf);

found = true;

break;

}

}

If (! found) {}

TreeItem < String > depNode = new TreeItem < String >)

employee.getDepartment (),

new ImageView (depIcon)

);

rootNode.getChildren () .add (depNode);

depNode.getChildren () .add (empLeaf);

}

}

stage.setTitle ("Tree View sample");

Box of VBox = new VBox();

a final scene = new scene (box, 400, 300);

scene.setFill (Color.LIGHTGRAY);

TreeView TreeView < String > = new TreeView < String > (rootNode);

treeView.setEditable (true);

treeView.setCellFactory (new recall < TreeView < String >, TreeCell < String > > () {}

@Override

public TreeCell < String > call (TreeView < String > p) {}

return new TextFieldTreeCellImpl();

}

});

box.getChildren () .add (treeView);

stage.setScene (scene);

internship. Show();

}

the final private class TextFieldTreeCellImpl extends TreeCell < String > {}

private TextField textField;

public TextFieldTreeCellImpl() {}

}

@Override

public void startEdit() {}

super.startEdit ();

If (textField == null) {}

createTextField();

}

setText (null);

setGraphic (textField);

textField.selectAll ();

}

@Override

public void cancelEdit() {}

super.cancelEdit ();

setText ((String) getItem());

setGraphic (getTreeItem () .getGraphic ());

System.out.println ("cancelled point" + getItem());

}

@Override

{} public Sub updateItem (empty string element, Boolean)

super.updateItem point, empty;

If {(empty)

setText (null);

setGraphic (null);

} else {}

If (isEditing()) {}

If (textField! = null) {}

textField.setText (getString ());

}

setText (null);

setGraphic (textField);

} else {}

setText (getString ());

setGraphic (getTreeItem () .getGraphic ());

}

}

}

private void createTextField() {}

textField = new TextField (getString ());

textField.setOnKeyReleased (new EventHandler < KeyEvent > () {}

@Override

{} public void handle (KeyEvent t)

If (t.getCode () == KeyCode.ENTER) {}

commitEdit (textField.getText ());

} ElseIf (t.getCode () == KeyCode.ESCAPE) {}

cancelEdit();

}

}

});

}

private String getString() {}

return getItem() is nothing? ' ': getItem () m:System.NET.SocketAddress.ToString ();

}

}

Public NotInheritable class employee {}

private final SimpleStringProperty name

Department of SimpleStringProperty final private;

private employee (String name, String department) {}

myIdName = new SimpleStringProperty (name);

This.Department = new SimpleStringProperty (department);

}

public String getName() {}

Return name.get ();

}

{} public void setName (String fName)

Name.Set (fname);

}

public String getDepartment() {}

Return department.get ();

}

{} public void setDepartment (String fName)

Department.Set (fname);

}

}

}

Solved

I tried jdk build 1.8.0 - ea - b99 and is no more a problem.

Tags: Java

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