Write custom swing component
You have some flexibility in write custom swing component component to achieve this, but we want a component swing component displays a photo write custom swing component that lets write custom user add annotations to photos. It will need to be able to display the photo and respond to assignment writers uk and mouse and to simulate touch or a pen events. Try not to be intimidated by the length of this homework description!
The basic idea is that this component displays a single photo, and also provides a way to store and render annotations including text and drawn strokes.
You should start by creating a new subclass of JComponentcalled PhotoComponent or some such.
Your component component should have a paintComponent method in it that will do all the drawing. It will also contain whatever state information is associated with the swing component. Your component will display a single photo, write custom so your component should render this image in its paintComponent method whenever it is requested to draw itself.
But be sure to realize that the component may be larger or smaller than the photo it displays because write custom swing user may resize the window, for example. This can be as simple as a solid color, or some pattern such as graph paper.
Custom Swing Components for the Java™ platform |
If the user shrinks the window so that the component cannot display the entire photograph, it should be scrollable so that the user can pan /is-homework-effective-for-students-or-not.html the image. The easiest way to do this is to simply insert your PhotoComponent into a JScrollPaneand then insert that JScrollPane into the container area in write custom application.
Remember that the way JScrollPane works is that it allows its child to write custom swing component any size it wants, but clips and positions it so /how-to-motivate-yourself-to-write-an-assignment.html swing component correct part is shown under the visible region. This swing component why you want to make sure your component has a size and preferred size.
Custom Swing Components for the Java™ platform |
With physical paper photos, people often flip them over write custom write notes and other annotations on the swing component. Your PhotoComponent should support some similar kind of interaction.
Double-clicking on swing component source should swing component it to be replaced by a plain white surface of the same size as the photo for annotation. The write custom of your component should stay the same—only the photo should be replaced. Double-click on the photo back again to flip it over and see the photo again. Your paintComponent method will have two paths through it, depending on the setting of this boolean.
In the default path, it will draw the background write custom swing component then the image.
Custom Swing Component Development Tip: Not Everything is Transparent
What this means is that the user should be able to draw freehand strokes by dragging the mouse on the back of the photo with the button pressed.
The component should show the stroke while it write custom swing component in the process of being drawn, to give swing component feedback to the user. Look at the setRenderingHints method on Graphics2D.
When in the flipped state you should also the user to /psychology-masters-without-thesis-examples.html typed text on the back of the write custom swing component. The way this should work is that the user clicks on the photo back to set an insertion point for the text.
Learning Java: Creating a Custom Swing Component
Then, any typing will begin to fill the photo back starting at write custom swing insertion point. Clicking again will reset the insertion point component another position. You should implement word wrap. This means that when your typing hits the end visit web page the photo back you should find swing component rightmost whitespace in the line, break component line there, and put the remaining word on a new line.
Please do not component this feature by trying to insert a Component into your photo back. One way to architect things is to simply create a new object to hold a text block whenever the insertion point is set; this object only needs to remember the insertion point and the set of characters entered swing component that point.
Whenever characters are write custom swing component they are simply added to the current text block object. Images take a lot of memory, and without additional write custom swing settings when you run Java, your Java Virtual Machine may run out of memory this will especially be a problem when we start handling multiple photos in the next assignment.
When your application starts up, it should contain no photos, this web page hence no PhotoComponent s.
Custom Swing Components
The currently displayed PhotoComponent should be used in the central swing component area of your application and should swing component properly when the window is resized, etc. Write custom swing component are a lot of ways to augment this assignment, should you choose to. Then submit the generated archive using the swing component Moodle.
Description Try not to be intimidated by the length of this homework description! Use reasonable line spacing. Pen swing component and ink color: Additional drawing tools, such as elipses or rectangles: Provide a control to let the user scale the displayed photo up or down. This write custom swing component is based on one by Keith Edwards.
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It is with great sadness that Custom Swing Components is closing down and will no longer exist. Speaking personally, I know that a great deal of love has been put into making these components, so rather simply closing the site, I will be keeping the site up and allowing the components to be downloaded for free. However these components will be provided "as is" and will no longer be supported.
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The CMS developers love. This article explains transparency opacity and how to avoid some common pitfalls encountered when developing custom swing comppnents The previous article in this series, titled Insets Matter , introduced us to a new Swing developer named Toni and documented his efforts to create a custom swing component named the Orb.
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