FlatSVGIcon explicit scaling

[xDUDSSx]

Hello,
I was wondering if there is any way to set a FlatSVGIcon's size directly that it would scale the svg itself into given dimensions like 16x16, eg. the same size as a 16x16 pixel ImageIcon.
From what I understand right now. The svg icon renders in whatever size the source .svg file has defined in the file itself.

To elaborate on why I'm interested in such functionality. When I download an .svg file from, say, an online icon library. It's not necessarily going to be 16x16 pixels and I have to use some tools to scale it into the size I desire.

Another issue arises when I want to have a set of 16 pixel icons and a bigger set that is like 24 pixels big for some other use cases. One would think that when I'm already using svg icons such icons could be generated by just scaling the same .svg file.

The ability to support multiple sizes is certainly part of the appeal of using svg icons. Am I missing something or is there no way to achieve that so it would work with hiDpi scaling and so on?

[electriq]

It will be also useful to be able to create multiple FlatSVGIcon with different sizes from the same SVG file once loaded. So we have a single SVG icon file and can use it with size 16x16 in the main menu, 24x24 in the toolbar and 32x32 as an icon in the message dialog window, for example. Looks like overriding size in constructor is a good idea: Icon icon16 = new FlatSVGIcon(resourceName, 16, 16);. Or it may be implemented as a cloning method, sharing the SVGDiagram (but it seems it's too little resources to optimize here), like FlatSVGIcon icon16 = icon32.scaledInstance(16, 16); Now we actually need to store two or more identical SVG files with different sizes in resources.

[DevCharly]

Thx, this is now implemented in master branch.

There are additional constructors in FlatSVGIcon where you can pass width and height:

FlatLaf/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java

Lines 91 to 101 in 4c141fe

	/**
	* Creates an SVG icon from the given resource name with the given width and height.
	* <p>
	* The icon is scaled if the given size is different to the size specified in the SVG file.
	*
	* @param name the name of the SVG resource (a '/'-separated path)
	* @param width the width of the icon
	* @param height the height of the icon
	* @see ClassLoader#getResource(String)
	*/
	public FlatSVGIcon( String name, int width, int height ) {

or a scale factor:

FlatLaf/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java

Lines 121 to 132 in 4c141fe

	/**
	* Creates an SVG icon from the given resource name that is scaled by the given amount.
	* <p>
	* The SVG attributes {@code width} and {@code height} (or {@code viewBox})
	* in the tag {@code <svg>} are used as base icon size, which is multiplied
	* by the given scale factor.
	*
	* @param name the name of the SVG resource (a '/'-separated path)
	* @param scale the amount by which the icon size is scaled
	* @see ClassLoader#getResource(String)
	*/
	public FlatSVGIcon( String name, float scale ) {

There are also derive methods that allow quick creation of icons in various sizes:

FlatLaf/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java

Lines 161 to 168 in 4c141fe

	/**
	* Creates a new icon with given width and height, which is derived from this icon.
	*
	* @param width the width of the new icon
	* @param height the height of the new icon
	* @return a new icon
	*/
	public FlatSVGIcon derive( int width, int height ) {

[xDUDSSx]

Exactly what I had in mind. Works well, good job. Not just with this but with the project overall. Looks great and it's nice to see all the progress you're making with each update. 👍