Swing related classes can be found in the Java API guide with complete documentation, whereas JavaFX doc is available in various format with comprehensive detailing and file support. Swing, since its advent, can create UI component using standard Java component classes, whereas Java FX initially uses a declarative language called JavaFX Script Manage and support computers, servers, storage systems, operating systems, networking, and more This Swing Java Tutorial describes developing graphical user interfaces (GUIs) for applications and applets using Swing components The custom component, Picture, implements a mouse listener that requests the focus when a user clicks on the component.
JxBrowser — a Chromium-based Swing/JavaFX/SWT component
The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases. See JDK Release Notes for information about new features, enhancements, how to write custom swing component removed or deprecated options for all JDK releases.
Mouse events notify when the user uses the mouse or similar input device to interact with a component. Mouse events occur when the cursor enters or exits a component's onscreen area and when the user presses or releases one of the mouse buttons.
Tracking the cursor's motion involves significantly more system overhead than tracking other mouse events. That is why mouse-motion events are separated into Mouse Motion listener type see How to Write a Mouse Motion Listener. To track mouse wheel events, you can register a mouse-wheel listener. See How to Write a Mouse Wheel Listener for more information. If an application requires the detection of both mouse events and mouse-motion events, use the MouseInputAdapter class.
This class implements the MouseInputListenera convenient interface that implements the MouseListener and MouseMotionListener interfaces. However, the MouseInputListener interface does not implement the MouseWheelListener interface. Alternatively, use the corresponding AWT MouseAdapter class, which implements the MouseListenerMouseMotionListenerand MouseWheelListener interfaces.
The following example shows a mouse listener. At the top of the window is a blank area implemented by a class named BlankArea.
The mouse listener listens for events both on the BlankArea and on its container, an instance of MouseEventDemo. Each time a mouse event occurs, a descriptive message is displayed under the blank area. By moving the cursor on top of the blank area and occasionally pressing mouse buttons, you can fire mouse events. You can find the demo's code in MouseEventDemo. java and BlankArea. Here is the demo's mouse event handling code:. The MouseListener Interface. The MouseAdapter class the AWT adapter class is abstract.
All its methods have an empty body. So a developer can define methods for events specific to the application. You can also use the MouseInputAdapter class, which has all the methods available from MouseListener and MouseMotionListener, how to write custom swing component.
The MouseEvent class inherits many useful methods from InputEvent and a couple handy methods from the ComponentEvent and AWTEvent classes. The MouseInfo class provides methods to obtain information about the mouse pointer location at any time while an application runs.
About Oracle Contact Us Legal Notices Terms of Use Your Privacy Rights. All rights reserved. Hide TOC. Writing Event Listeners. General Information about Writing Event Listeners. Listeners Supported by Swing Components.
Implementing Listeners for Commonly Handled Events. How to Write an Internal Frame Listener. How to Write a List Selection Listener. How to Write a Property Change Listener. How to Write a Tree Expansion Listener.
How to Write a Tree Selection Listener. How to Write a Tree-Will-Expand Listener. How to Write an Undoable Edit Listener. Trail: Creating a GUI With Swing Lesson: Writing Event Listeners Section: Implementing Listeners for Commonly Handled Events.
Alternatively, to compile and run the example yourself, consult the example index. Move the cursor into the yellow rectangle how to write custom swing component the top of the window.
You will see one or more mouse-entered events. Press and hold the left mouse button without moving the mouse. You will see a mouse-pressed event. You might see some extra mouse events, such as mouse-exited and then mouse-entered. Release the mouse button.
You will see a mouse-released event. If you did not move the mouse, a mouse-clicked event will follow. Press and hold the mouse button again, and then drag the mouse so that the cursor ends up outside the window.
You will see a mouse-pressed event, followed by a mouse-exited event, followed by a mouse-released event. You are not notified of the cursor's motion. To get mouse-motion events, you need to implement a mouse-motion listener. public class MouseEventDemo addMouseListener this ; addMouseListener this ; if event. Previous page: How to Write a List Selection Listener Next page: How to Write a Mouse-Motion Listener. mouseClicked MouseEvent. mouseEntered MouseEvent. mouseExited MouseEvent, how to write custom swing component.
mousePressed MouseEvent. Called just after the user presses a mouse button while the cursor is over the listened-to component. mouseReleased MouseEvent.
Called just after the user releases a mouse button after a mouse press over the listened-to component. int getClickCount. Returns the number of quick, consecutive clicks the how to write custom swing component has made including this event. For example, returns 2 for a double click. int getX int getY Point getPoint. Return the x,y position at which the event occurred, relative to the component that fired the event.
int getXOnScreen int getYOnScreen how to write custom swing component getLocationOnScreen. Return the absolute x,y position of the event. These coordinates are relative to the virtual coordinate system for the multi-screen environment.
Otherwise, these coordinates are relative to the coordinate system associated with the Component's Graphics Configuration. int getButton. Returns which mouse button, if any, has a changed state. One of the following constants is returned: NOBUTTONBUTTON1BUTTON2or BUTTON3. boolean isPopupTrigger. Returns true if the mouse event should cause a popup menu to appear.
Because popup triggers are platform dependent, if your program uses popup menus, you should call isPopupTrigger for all mouse-pressed and mouse-released events fired by components over which the popup can appear. See Bringing Up a Popup Menu for more information about popup menus, how to write custom swing component.
String getMouseModifiersText int. These strings can be localized using the awt. properties file. int getID in java. Returns the event type, which defines the particular action.
For example, the MouseEvent id reflects the state of the mouse buttons for every mouse event. How to write custom swing component following states could be specified by the MouseEvent id: MouseEvent. Component getComponent in ComponentEvent. Returns the component that fired the event. You can use this method instead of the getSource method. int getWhen. Returns the timestamp of when this event occurred. The higher the timestamp, the more recently the event occurred. boolean isAltDown boolean isControlDown boolean isMetaDown boolean isShiftDown.
int getModifiers.
IHM GUI Java Swing n°9 p.1 - Custom Component
, time: 1:16:37Java Swing | JCheckBox with examples - GeeksforGeeks
This saves a lot of memory. It also makes it incredibly easy to write the GUI part of your new component. You still have to struggle with the layout in Swing, but you don't have to worry about creating the right events and actions for getting the data from the GUI elements into the TestElement where it can do some good Custom Context Menu. You can display your own Swing/JavaFX/SWT context menu, using different useful information obtained from the library such as context menu location, selected text, link URL, link text, HTML element media type etc. See example May 23, · setIcon(Icon i): sets the icon of the checkbox to the given icon setText(String s):sets the text of the checkbox to the given text setSelected(boolean b): sets the checkbox to selected if boolean value passed is true or vice versa getIcon(): returns the image of the checkbox getText(): returns the text of the checkbox updateUI(): resets the UI property with a value from the current look and
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