kotlinlang #compose-desktop

I'm a bit confused on the coding conventions. I'm running through codelabs for compose and coding for compose desktop. All of the function names are PascalCase. Should I follow the convention as shown or ignore this and stick to camelCase?

5 replies · 5 participants

Yan Pujante

02/25/2021, 7:55 PM

Although not specifically compose-desktop specific, wanted to share how I build the

.icns

file that you can use in your dmg image on macOS (because it is NOT trivial), using a svg file as an input and google chrome for the rendering (handle transparency properly)

// render a single icon with the size
fun renderIcon(size: Int, filename: String) {
  val html = """
      <!DOCTYPE html>
      <html lang="en">
      <head>
          <meta charset="UTF-8">
          <title>Title</title>
      </head>
      <body style="margin:0;overflow:hidden">
      <img style="padding; margin:0" src="${rootDir}/src/main/resources/images/logo.svg" width="$size" height="$size"></img>
      </body>
      </html>
    """.trimIndent()
  val inputFile = file("$buildDir/icon.html")
  inputFile.writeText(html)
  println(inputFile)
  exec {
    commandLine(
      "/Applications/Google <http://Chrome.app/Contents/MacOS/Google|Chrome.app/Contents/MacOS/Google> Chrome",
      "--headless",
      "--screenshot=$filename",
      "--window-size=$size,$size",
      "--default-background-color=0",
      inputFile.toString()
    )
  }
}

val iconsetDir = "${buildDir}/app-icon.iconset"

// render all icons required for iconset
tasks.register("iconset") {
  doLast {
    // make sure the folder exists
    mkdir(iconsetDir)

    // generate each icon
    arrayOf(512, 256, 128, 32, 16).forEach { size ->
      renderIcon(size * 2, "$iconsetDir/icon_${size}x${size}@2x.png")
      renderIcon(size, "$iconsetDir/icon_${size}x${size}.png")
    }
  }
}

// render the .icns file needed for macOS
val icnsTask = tasks.register("icns") {
  doLast {
    exec {
      commandLine("iconutil", "-c", "icns", iconsetDir)
      workingDir = buildDir
    }
  }
  dependsOn("iconset")
}

after running the

icns

task you end up with

app-icon.icns

file which you can then use in your app distribution

👍 1

3 replies · 2 participants

Will Johnson

02/25/2021, 7:56 PM

Hello! I'm trying to place a Slider() inside a DropDownMenu() like in the following:

@Composable
fun sliderDropDown(isExpanded: Boolean, onDismissRequest: () -> Unit) {
    DropdownMenu(expanded = isExpanded, onDismissRequest) {
        var value by remember { mutableStateOf(0f) }
        Slider(
            value,
            { value = it },
            Modifier.width(200.dp)
        )

    }
}

but I keep getting the error

Intrinsic measurements are not currently supported by SubcomposeLayout

I'm able to use a Popup() to show the Slider, but I can't figure out a way to get the same anchoring behavior from the Popup that the DropDownMenu provides by default. Am I missing something when I use DropDownMenu? Is there a way to get the same anchoring effect with a Popup? I'm using compose-0.3.0 and kotlin-1.4.30

3 replies · 2 participants

Hunter Breathat

02/26/2021, 1:09 AM

👋 I'm looking to use the

@Preview

annotation, but there doesn't appear to be support for it. Is that correct?

2 replies · 3 participants

theapache64

02/26/2021, 6:26 AM

Version Naming : Illegal version for 'Dmg': '0.1.0' is not a valid version 🧵

5 replies · 3 participants

Paul Nogas

02/26/2021, 4:35 PM

Hi, I'm playing around with jb-compose and seem to be getting in a recomposition loop when I do my "toggle dark mode" from the menu bar but not when I do it from a androidx.compose.material.Swtich in the UI. I've tried wrapping multiple things in remember {} but it doesn't seem to help. Can someone confirm if I'm doing something wrong or if this is a bug in jb-compose? Project is on Github and here's the composable in question https://github.com/pnogas/TempProject/blob/main/src/main/kotlin/com/paulnogas/log/analyzer/WindowActionManager.kt#L38

9 replies · 3 participants

rsktash

02/26/2021, 5:16 PM

Hi is there a plan to support javafx? We are encountering for java lib deficiency. For example mp3 playing library

4 replies · 3 participants

olonho

02/26/2021, 7:39 PM

We just built Compose 0.3.1 which contains fix for Linux crash, and few other improvements. Please consider using it.

🎉 14

1 reply · 2 participants

Dominaezzz

02/26/2021, 8:10 PM

Building a Matrix Client with Compose for Desktop. Felt like sharing 😄.

screencast-2021-02-26_20.03.44.mp4

🎉 20

:kotlin-intensifies: 19

9 replies · 6 participants

Bryan L

02/27/2021, 4:10 PM

I'm looking to create a program in Compose Desktop that can read data from excel sheets and compare that data to an SQLite Database(with millions of records) which then stores/outputs the results in various formats. Is there any tools/libraries you would recommend me using or looking into for this? Most of the results I see are built in android apps and I'm not sure if that is an ideal route in CD since the their is different options to choose from. I do plan on having this or at least the results shown on android/mobile in the future but not anytime soon.

3 replies · 3 participants

theapache64

02/28/2021, 6:20 AM

❓ Is there any release note or any way to see the commits included in a release?

2 replies · 2 participants

theapache64

02/28/2021, 3:17 PM

I am working on a project called Stackzy and am trying to roll out executable for Windows. Since I don't have a windows machine, can anyone help me debug the windows build? 🙂

9 replies · 5 participants

dector

02/28/2021, 9:56 PM

#screenshotsunday Making app that will let students (that are building simple REST API using tutorial) to visualize their result

screen_00002.mp4

🎉 7

🔥 2

👍 2

2 replies · 2 participants

theapache64

03/01/2021, 10:51 AM

❓ Is there any way to include the file into the build according to the platform? Something like

productFlavors

of android

4 replies · 2 participants

Carter

03/01/2021, 9:58 PM

I’m following the instructions for signing on macOS. It works great locally, although I’m running into a failure when trying to set it up on CI. The exact error I get is this

Execution failed for task ':desktop:packageDmg'.
Process 'command '/usr/bin/codesign'' finished with non-zero exit value 1

Ad when I add --debug I see

error: The specified item could not be found in the keychain.

Is there some additional item that might need to be in the keychain that’s missing in the CI environment, but might already be present in my desktop environment?

2 replies · 2 participants

rsktash

03/02/2021, 6:42 AM

Canvas.drawArc is ignoring

size

parameter The issue is specific to desktop app. Android app is working as expected

5 replies · 3 participants

rsktash

03/02/2021, 10:20 AM

How can we check that point is inside a path? I saw two functions in android

Path.op(path2: Path, op: Op)

and

Path.op(path1: Path, path2: Path, op: Op)

But in compose there is only one

Path.op(path1: Path, path2: Path, op: Op)

16 replies · 2 participants

Dirk Hoffmann

03/02/2021, 11:20 AM

can someone point me to a good article/documentation on "what gets redrawn when"? especially on the question "if state changes, how does compose decide what has to be redrawn", thanx (as anything is a function, I wonder on what it is inside the function that compose "remembers" and how he "finds" the function to be reexecuted when ... yeah, when what!?)

👍 1

21 replies · 4 participants

Draget

03/02/2021, 3:12 PM

Trying https://github.com/JetBrains/compose-jb/blob/master/tutorials/Getting_Started/README.md and just wanted to write out some thoughts/experiences. Just opening the automatically created compose demo project sends my IDEA into a indexing-importing-downloading-something frency for over 10+ minutes. Trying to update the Kotlin plugin version in the build.gradle.kts and somehow expecting "1.4.<alt+space>" to be autocompleted to avaiable versions, seeing it still does not work. So updating it by manually searching the versions. Trying to create a regular 'Application' run configuration which fails to find the main class (the searching-dialog looked like it was doing something for 1-2 minutes, but I did not care to wait and find out if it just went into an endless loop or is going down every class ever it finds on my PC). Accepting I should use the gradle task. Realizing the configured gradle-wrapper is 6.7 while 6.8.3 is the latest one. Running

./gradlew wrapper --gradle-version 6.8.4

and noticing the typo after gradle already accepted the command without any feedback whatsoever. Trying any other gradle command including

./gradlew wrapper --gradle-version 6.8.3

no longer works unless I edit the config file manually. Lots and lots of more re-indexing.

./gradlew clean

taking 1m20s. Launching the compose demo application only to see an error about invalid MSI version. Luckily I know MSI and realize it needs three version parts, the wizard created only 1.0, so changing it to 1.0.0. Running the application finally works. Trying to Update the compsoe version and changing some things about the main class, gradle/idea deciding to re-index just random things (it included my JDK!?) and taking another few minutes. While doing this all, had two IDEA errors (which I reported) inbetween. So the whole 'test' took almost two hours… granted, with sidetracking. But the Gradle<->Idea<->compose experience has really not been stellar so far. :(

4 replies · 3 participants

Yan Pujante

03/02/2021, 5:36 PM

Looking at the tutorial about the Window https://github.com/JetBrains/compose-jb/tree/master/tutorials/Window_API, I haven't found the answer that I was looking for which is: if I start my app, resize it, close it and restart it, it does not restart with the size it used last. I assume it is something I need to implement on my own. Any suggestion on how to? Use Java

Preferences

API?

1 reply · 2 participants

note8g2018

03/03/2021, 10:13 AM

Please tell Google to update the code lab for jetpack compose https://developer.android.com/courses/pathways/compose It is not working now Because the code is old and there are many huge changes in the framework jetpack compose Google should update the code

:google: 3

4 replies · 4 participants

Marcin Środa

03/03/2021, 11:40 AM

Hi guys, does anyone knows how to deal with distributable for macOs? I created a jar just for tests - it works fine. Now I tried to create a distributable, build is finished but due to gson dependency I’ve got :

Caused by: java.lang.ClassNotFoundException: java.sql.Time

Am I able to add this module to dmg?

14 replies · 5 participants

Yofou

03/03/2021, 12:12 PM

Is it possible to change the color, of the window topbar and if not is there any examples of making a custom one? I'm particularly curious if there any examples of implementing the draggable window part?

8 replies · 3 participants

theapache64

03/03/2021, 2:56 PM

https://twitter.com/theapache64/status/1367126363161784330

3 replies · 4 participants

Yofou

03/04/2021, 12:39 PM

Hello o/, So after implementing the solution to my originoal problem here -> https://kotlinlang.slack.com/archives/C01D6HTPATV/p1614773539213300 I discovered that making my window

undecorated

actually makes my window non-resizable, so I was wondering if there's a solution to make my window undecorated but also resizable, thank you in advanced. 🙂

9 replies · 4 participants

Michael Paus

03/04/2021, 2:26 PM

Hi, my old code seems to be broken because the

rawDragGestureFilter

of the Modifier is gone. Can anybody tell me how one is supposed to deal with mouse drags over a Canvas now? Any help is appreciated 😀

2 replies · 2 participants

Yan Pujante

03/04/2021, 3:20 PM

Yesterday, Flutter 2 was announced. I am just curious if anybody has any experience on how it compares to compose-desktop (besides the obvious difference of kotlin vs dart). https://developers.googleblog.com/2021/03/announcing-flutter-2.html

1 reply · 2 participants

phisch

03/04/2021, 10:19 PM

I'm trying to figure out if compose-desktop could be a potential replacement for gtk4 in one of my projects. The main use-case i am looking for is themeability. So a user should be able to provide a configuration (could be custom or css or whatever) to theme the used components. A friend that has used compose-desktop before told me that it isn't possible to change style properties at runtime, and this seems like it can't be true.

28 replies · 3 participants

SrSouza

03/05/2021, 3:06 PM

Hey folks, there is any plan to support at the gradle plugin or any type of tutorial to build CfD to snap?

2 replies · 3 participants

darkmoon_uk

03/06/2021, 7:33 AM

I know the packaging features of Desktop Compose tooling require JDK 14, but what are the JRE requirements of the produced runtime; does that also have to be JDK14? What's the minimum? My interest is to run Desktop Compose on Raspberry Pi which is 32-bit OpenJDK11 by default. Thanks!

3 replies · 2 participants

Title

darkmoon_uk

03/06/2021, 7:33 AM

jim

03/06/2021, 7:42 AM

When you create a native bundle, the JRE is bundled into the native binary, so there is no need to have a JRE on the device where the native bundle is installed. If the target machine already has a JRE installed on the system, that won't harm anything, it will just be ignored.

That said, the bigger challenge is going to be getting Compose for Desktop to be built for the Raspberry Pi, as that will require building a compatible copy of Skia & friends for that device, since it isn't a platform we (yet) support out of the box. This will require a bit of effort on your end, but should be a very tractable problem if you're willing to do a couple of C++ builds. There are some threads on this topic in this channel if you do a search.

👍 3

https://kotlinlang.slack.com/archives/C01D6HTPATV/p1611675551121700?thread_ts=1611654757.111100&cid=C01D6HTPATV

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