defano/jmonet

An easy-to-use toolkit for incorporating MacPaint / Microsoft Paint-like tools into a Java Swing or JavaFX application.

jmonet's Issues

Java 8 Error

To add its dependency you should use java 8, for this min SDK is 26
To check after sync gradle rebuild your project, you will see it

Error:com.android.builder.dexing.DexArchiveBuilderException: Failed to process C:\Users\Ahsan.gradle\caches\modules-2\files-2.1\com.defano.jmonet\jmonet\0.2.2\a92b9db3d14092f0a4062560fa1a63516e1b5345\jmonet-0.2.2.jar
Error:com.android.builder.dexing.DexArchiveBuilderException: Error while dexing com/defano/jmonet/tools/TextTool.class
Error:com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Error:Execution failed for task ':app:transformClassesWithDexBuilderForDebug'.

com.android.build.api.transform.TransformException: com.android.builder.dexing.DexArchiveBuilderException: com.android.builder.dexing.DexArchiveBuilderException: Failed to process C:\Users\Ahsan.gradle\caches\modules-2\files-2.1\com.defano.jmonet\jmonet\0.2.2\a92b9db3d14092f0a4062560fa1a63516e1b5345\jmonet-0.2.2.jar
Information:BUILD FAILED in 13s
Information:4 errors

fireMarchingAntsObservers() produces ConcurrentModificationException

Possible to create rectangular selection outside canvas bounds

When holding shift to restrict rectangular selection to square, it's possible to produce a selection that exceeds the bounds of the canvas resulting in java.awt.image.RasterFormatException: y lies outside raster

TransformableSelection methods do work correctly with transform tools

How to use Eraser and Undo?

Anyone can help me how to use eraser and undo path? Thanks!

Monochrome color reduction produces hard-line artifacts

Reducing the color of a photograph to black-and-white can produce quantization/dithering errors that produce hard lines that do not appear in the source image.

Canvas overpaint's components insets

When applying a border to a JMonetCanvas the user (painter) can paint atop the border.

Antialiasing mode should be configurable

NPE when deactivating selection tool

Deactivating the selection tool with an active, but unmodified, selection results in an NPE.

Magnifier only zooming towards top left corner

Hi,
after using this library, I've noticed that the magnifier (from PaintToolType.MAGNIFIER) doesn't zoom in at clicked mouse location, but always towards the top left corner. I've attached my config. of the magnifier. I suspect that I have forgotten something.

With kind regards

Text tool renders frame on Nimbus L&F

How to scale around mouse location?

In some financial projects, need display a complex plot with swing, I think maybe jmonet is good choice.
So, how to scale canvas around with mouse location?

getCanvasImage() is slow and unnecessarily computationally expensive

JMonetCanvas#getCanvasImage() recomputes the overlay of each image in the undo buffer every time it is called (commonly, every time it repaints).

A cache should be used to increase speed and reduce computation.

Creating selection from images without alpha channel introduces opaque bounding boxes

Eraser erases clears all pixels, including those of uploaded image

Hi,
I've noticed the standard settings of the eraser clears everything, including the pixels of the uploaded image(see example of image with red airbrush and grey cleared lines). Are there options to disable the eraser to clear the pixels of the image (and just painted lines)? Or is this still a ToDo?

Thank you and kind regards

Eraser path should stroke panel's color, not necessarily white

Eraser tool leaves white path until mouse is released; eraser should "paint" the color of the canvas instead.

Scratch region rendering artifacts when scale > 1

When drawing on a canvas that's embedded inside a scroll view, and the canvas' scale value > 1, and the scroll error is not zero, then the scratch region may be painted a pixel or two offset from where it should be.

When shift key is down, polygon tool draws lines away from cursor

When the canvas is scrolled or scaled, holding the shift key down while drawing lines with the polygon tool results in lines not attached to the location of the mouse cursor.

rotateRight/rotateLeft animate strangely

When performing a rotatation on a selection, the selection appears to rotate that move position; these operations should appear atomically.

pickupSelection method alters draw z-order of composited image

When "picking up" an image, the picked-up image will appear atop the selection.

Unmodified selection is painted twice on canvas

Select a portion of a translucent graphic and before the selection is dirtied (by moving it or applying a transform), the selected region will be painted twice making it appear more opaque than it actually is. Has no visible effect for fully opaque or fully transparent images.

Does not affect the committed image or selected image once modified.

Erase JMonet

Hi Matt!

I'm developing a javafx application which contains a jmonet canvas. The application has several fxml pages and controllers.
The jMonetCanvas is contained in a javafx controller. When I call this controller, it creates a static jMonetCanvas. But I have a problem:

If I go to another controller, the jMonet object continues staying on memory. I'm trying to delete the jMonetObject, calling the dispose method, setting to null the jMonetObject, but it continues in memory with its bufferedImages, listeners,...

What can I do to erase this object completely? I want to erase completely this object when I go to another controller, and I want to create a new jMonet object when I go to its controller.

Thanks.

Corner radius property of RoundRectangleTool should be promoted to PaintTool

Unmodified selection is deleted when canceling selection

Create a selection with the selection or lasso tool and before modifying the selection, press esc or deactivate the tool; selected image is removed from canvas.

JavaFX cannot change pencil color

I use javafx to create canvas with image background but when I drawing on this with color picker, the line is default white color. Without image background, I can change color normally.

Scale tool should support square constraint when shift is down

How to select or remove Rectangle or Oval or Line?

How to select or remove Rectangle or Oval or Line ?

Deleting a dirtied selection deletes unselected pixels from the canvas

Make a selection; move/translate the selection on the canvas; delete or cut the selection and note that all the pixels underneath the selection (not just those originally selected) are deleted.

Only pixels initially selected should be deleted.

Marching ants are invisible on all-black background

Airbrush tool should have configurable intensity

Can't find PaintTool object

Hi,
After installing and configuring this library in Intellij via Maven, I have been trying to run the most basic example given in the read_me for a javafx application. After successfully creating a canvas, I was unable to draw on it.
Because the PaintTool object can't be created, it seems that the PaintTool class does not exist, which I highly doubt. However, I have looked through the source code and still can't find it.

Have I implemented the example wrong, or am I missing other dependencies?

As a javafx beginner, I apologize for this trivial question.
Kind regards

Top-left scan line should not be visible

Displaying scanline above pixel row 0 and to the left of pixel column 0 is visually distracting.