206 lines
6.5 KiB
Markdown
206 lines
6.5 KiB
Markdown
# orx-gui
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Automatic UI (sliders, buttons, etc.) generated from annotated classes and properties. Uses `orx-panel` and `orx-parameters`.
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A quick-and-dirty user interface toolkit.
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`orx-gui` uses class and property annotations to generate simple interfaces. The annotations used
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are provided by [`orx-parameters`](../orx-parameters/README.md) and most filters in [`orx-fx`](../orx-fx/README.md) have been annotated.
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`orx-gui` is made with an [`orx-olive`](../orx-olive/README.md) workflow in mind but can be used in normal OPENRNDR programs
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just as well.
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## Usage
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Preparation: make sure `orx-gui` is in the `orxFeatures` of your project (if you working on a template based project)
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The essence of `orx-gui` lies in the provided a `GUI` extension, which can be used in your program using the `extend {}` function.
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The `GUI` class has an `add()` function that allows any annotated object to be passed in.
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The visibility of the side bar can be toggled by pressing the F11 key on your keyboard.
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### UIs for parameter objects
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A simple UI can be created by creating an annotated `object`.
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```kotlin
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import org.openrndr.application
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import org.openrndr.extra.gui.GUI
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import org.openrndr.extra.parameters.*
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import org.openrndr.math.Vector2
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import org.openrndr.math.Vector3
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import org.openrndr.math.Vector4
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enum class Option {
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Option1,
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Option2,
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Option3
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}
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fun main() = application {
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program {
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// -- this @Description annotation is optional
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val parameters = @Description("parameters") object {
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@DoubleParameter("radius", 20.0, 200.0, precision = 2, order = 0)
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var radius = 50.0
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@TextParameter("A string", order = 1)
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var s = "Hello"
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@BooleanParameter("A bool", order = 2)
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var b = true
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@IntParameter("An int", 0, 127, order = 3)
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var i = 64
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@ColorParameter("A fill color", order = 4)
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var fill = ColorRGBa.PINK
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@XYParameter("Position", minX = 0.0, maxX = 640.0,
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minY = 0.0, maxY = 480.0, order = 5)
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var pos = Vector2.ZERO
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@Vector2Parameter("A Vector2", order = 6)
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var v2 = Vector2(200.0, 200.0)
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@Vector3Parameter("A Vector3", order = 7)
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var v3 = Vector3(200.0, 200.0, 200.0)
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@Vector4Parameter("A Vector4", order = 8)
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var v4 = Vector4(200.0, 200.0, 200.0, 200.0)
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@DoubleListParameter("Mixer", order = 9)
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var mixer = MutableList(5) { 0.5 }
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@ActionParameter("Action test", order = 10)
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fun clicked() {
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println("GUI says hi!")
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}
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@OptionParameter("An option", order = 11)
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var option = Option.Option1
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}
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extend(GUI()) {
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add(parameters)
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}
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extend {
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drawer.fill = parameters.fill
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drawer.circle(parameters.pos, parameters.radius)
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}
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}
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}
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```
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### UIs for filters
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In a similar fashion to the previous example we can create a simple UI for most filters in `orx-fx`
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```kotlin
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import org.openrndr.application
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.isolatedWithTarget
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import org.openrndr.draw.renderTarget
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import org.openrndr.extra.fx.blur.BoxBlur
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import org.openrndr.extra.gui.GUI
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fun main() = application {
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program {
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val blur = BoxBlur()
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val rt = renderTarget(width, height) {
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colorBuffer()
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}
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extend(GUI()) {
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add(blur)
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}
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extend {
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drawer.isolatedWithTarget(rt) {
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drawer.background(ColorRGBa.BLACK)
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drawer.fill = ColorRGBa.PINK
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drawer.circle(width / 2.0, height / 2.0, 200.0)
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}
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blur.apply(rt.colorBuffer(0), rt.colorBuffer(0))
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drawer.image(rt.colorBuffer(0))
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}
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}
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}
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```
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### UIs in Olive
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Using `orx-gui` in Olive (`orx-olive`) is very similar to how one would use it in a normal OPENRNDR program. There is
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one detail that doesn't occur in normal programs: the UI state is reset when a
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script is changed and re-evaluated. This is overcome by using an annotated `Reloadable` object.
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An example `live.kts` script that uses `orx-gui` and `Reloadable`:
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```kotlin
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@file:Suppress("UNUSED_LAMBDA_EXPRESSION")
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import org.openrndr.Program
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import org.openrndr.extra.gui.GUI
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import org.openrndr.extra.olive.Reloadable
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import org.openrndr.extra.parameters.DoubleParameter
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{ program: Program ->
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program.apply {
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val p = object : Reloadable() {
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@DoubleParameter("x-position", 0.0, 640.0, order = 0)
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var x = 0.5
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@DoubleParameter("y-position", 0.0, 480.0, order = 1)
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var y = 0.5
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@DoubleParameter("radius", 0.0, 480.0, order = 2)
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var radius = 100.0
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}
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p.reload()
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extend(GUI()) {
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add(p)
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}
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extend {
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drawer.circle(p.x, p.y, p.radius)
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}
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}
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}
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```
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## Credits
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`orx-gui` is based on a proof-of-concept by [Ricardo Matias](https://github.com/ricardomatias/)
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<!-- __demos__ >
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# Demos
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[DemoOptions01Kt](src/demo/kotlin/DemoOptions01Kt.kt
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### DemoOptions01
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[source code](src/demo/kotlin/DemoOptions01.kt)
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### DemoPresets01
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[source code](src/demo/kotlin/DemoPresets01.kt)
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### DemoSideCanvas01
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[source code](src/demo/kotlin/DemoSideCanvas01.kt)
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### DemoSimple01
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[source code](src/demo/kotlin/DemoSimple01.kt)
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### DemoXYParameter
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[source code](src/demo/kotlin/DemoXYParameter.kt)
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