Hello I m just trying 1 0 0 and I can t get objects to pick

Question

Hello I m just trying 1 0 0 and I can t get objects to pick up the mouse wheel ` isTertiaryPressed` button anymore I was using the `Modifier pointerInput Unit ` in 1 0 0 beta5 with Kotlin 1 5 31 and tried just dropping the Compose ` beta5` in my Gradle file to upgrade to the release version I also tried ` onPointerEvent PointerEventType Press ` in 1 0 0 but still it doesn t work The scroll wheel rotation still works and the Primary button presses OK When pressing the wheel button while holding the Primary button down first my debugging will show that the middle button is being pressed OK but my conditional code is not running

Igor Demin · Answer

There were some changes in pointer events behavior Does this snippet work on your machine ```import androidx compose foundation layout Box import androidx compose foundation layout fillMaxSize import androidx compose material Text import androidx compose runtime getValue import androidx compose runtime mutableStateOf import androidx compose runtime remember import androidx compose runtime setValue import androidx compose ui Alignment import androidx compose ui ExperimentalComposeUiApi import androidx compose ui Modifier import androidx compose ui input pointer import androidx compose ui unit sp import androidx compose ui window singleWindowApplication OptIn ExperimentalComposeUiApi class fun main = singleWindowApplication var text by remember mutableStateOf Press me Box Modifier fillMaxSize onPointerEvent PointerEventType Press val position = it changes first position text = when it buttons isPrimaryPressed amp amp it buttons isTertiaryPressed gt Left+Middle click $position it buttons isPrimaryPressed gt Left click $position it buttons isTertiaryPressed gt Middle click $position else gt text contentAlignment = Alignment Center Text text fontSize = 30 sp ```

Kebbin · Answer

I thought there might have been so went and looked at that page I didn t try that code verbatim but used that structure and guidance from the Plug In prompts

Igor Demin · Answer

gt but my conditional code is not running could your show the condition code

Kebbin · Answer

``` onPointerEvent PointerEventType Press val clicks = it buttons val keys = it keyboardModifiers val wheelBtn = clicks isTertiaryPressed val ctrlBtn = keys isCtrlPressed val pan = it calculatePan val panning = wheelBtn amp amp ctrlBtn val rotating = wheelBtn amp amp ctrlBtn if panning offset += pan if rotating rotationZ = pan x rotationX += pan y if rotationX gt maxTilt rotationX = maxTilt if rotationX lt minTilt rotationX = minTilt if rotationZ gt 180 rotationZ = 360 if rotationZ lt 179 rotationZ += 360 This resets the view in case of mad pan zoom rotes if clicks isPrimaryPressed scale = 1f rotationX = 0f rotationZ = 0f offset = Offset Zero ```

Kebbin · Answer

That is under a Surface modifier = Modifier

Kebbin · Answer

The ` onPointerEvent ` code wouldn t work when I tried going back to beta5

Igor Demin · Answer

gt if clicks isPrimaryPressed It should be ``` if panning amp amp rotating amp amp clicks isPrimaryPressed ``` When we click with the wheel button and the left button is still pressed `isPrimaryPressed` will return true We have fixed a bug when onPointerEvent pointerEvent wrongly reported pressed buttons so it is probably because of that your code behaves differently in 1 0 0

Kebbin · Answer

I expected changes so not an issue I ll cogitate what you ve written and try that Thanks Igor for your help again and congrats on the release

Igor Demin · Answer

gt if panning amp amp rotating amp amp clicks isPrimaryPressed or not one minute slightly smiling face

Kebbin · Answer

grin

Kebbin · Answer

``` pointerInput Unit forEachGesture awaitPointerEventScope awaitFirstDown do val event = awaitPointerEvent val clicks = event buttons val keys = event keyboardModifiers val wheelBtn = clicks isTertiaryPressed val ctrlBtn = keys isCtrlPressed val pan = event calculatePan val panning = wheelBtn amp amp ctrlBtn val rotating = wheelBtn amp amp ctrlBtn if panning offset += pan if rotating rotationZ = pan x rotationX += pan y if rotationX gt maxTilt rotationX = maxTilt if rotationX lt minTilt rotationX = minTilt if rotationZ gt 180 rotationZ = 360 if rotationZ lt 179 rotationZ += 360 This resets the view in case of mad pan zoom rotes if clicks isPrimaryPressed scale = 1f rotationX = 0f rotationZ = 0f offset = Offset Zero println $wheelBtn $ctrlBtn println Pan $panning Rot $rotating rotX $rotationX rotZ $rotationZ println Pan $pan Pan2 $pan2 Dist $panDist Dir $ panDir 180 PI Scale $scale rotX $rotationX rotZ $rotationZ while event changes any it pressed ```

Kebbin · Answer

This was my original code that worked perfectly in beta5

Kebbin · Answer

I ve gone back to beta5 so I can continue working on some other conceptual stuff

Igor Demin · Answer

Resetting with the left button should happen even if the middle button is pressed right In that case the condition should be ```if clicks isPrimaryPressed amp amp isPrimaryPressedPrevious println reset isPrimaryPressedPrevious = clicks isPrimaryPressed``` Where `isPrimaryPressedPrevious` is ```var isPrimaryPressedPrevious by remember mutableStateOf false ``` It is somewhat inconvenient but probably this is the only way when we need to work with multiple pressed buttons

Kebbin · Answer

Hmm OK I ll look that up My main issue was that even with no buttons pressed the wheel button was causing no response I better head to bed so thanks for your help

Kebbin · Answer

The resetting with the left button was just a tool I built in while debugging

Igor Demin · Answer

gt the wheel button was causing no response not sure but that is probably because we reset after we try to rotate

Kebbin · Answer

I could ve made it anything else but it was just convenient

Kebbin · Answer

Reset the Composable after rotating you mean

Kebbin · Answer

I wonder if it s something to do with the ` forEachGesture` code that I got from a sample online Separating out each click as a separate event

Igor Demin · Answer

When the left button is pressed and we try to rotate with the middle button we change rotationZ rotationX in `if rotating ` condition but after that we execute code in `if clicks isPrimaryPressed ` condition which sets rotationZ rotationX to 0 0

Kebbin · Answer

OK but if I don t touch the left button and try to rotate the view with only the middle button and Ctrl key it still doesn t do anything It should only reset the view if the mouse is moved with the left button down

Igor Demin · Answer

gt `forEachGesture` probably it checks the state of `it changes first changedToDown ` and we had a bug in it when we press multiple buttons

Igor Demin · Answer

gt it still doesn t do anything Oh in that case it is something else

Kebbin · Answer

Ah that might be part of it then but still it should work with the new ` onPointerEvent` code I wrote Which should I be using ` onPointerEvent` or ` pointerInput`

Kebbin · Answer

As a side note how do you do that Quote Reply business you ve done there

Kebbin · Answer

With the grey bar quoting my text

Kebbin · Answer

gt Oh in that case it is something else Found it nerd face OK well I ll have to leave it with you mate Goodnight

Igor Demin · Answer

`onPointerEvent` is basically a simplified `pointerInput` you can look at the code inside I would recommend to use `onPointerEvent` `pointerInput` can be helpful for more complex event handling that is based on couroutines Also `forEachGesture` doesn t work well with multiple pressed buttons so I suggest to avoid it

Kebbin · Answer

OK thanks very much sunglasses +1 skin tone 2

Igor Demin · Answer

gt As a side note how do you do that Quote Reply business you ve done there Just type gt and Slack transforms it to quote slightly smiling face

Kebbin · Answer

Oh That s easy then Thanks

Kebbin · Answer

gt Cool

Kebbin · Answer

Bold italic ~strike~ `code segment` gt Quote

Kebbin · Answer

smile

Kebbin · Answer

zzz

Kebbin · Answer

Ha I got things to move again Igor I needed to use ` onPointerEvent PointerEventType Move ` instead of ` Press ` I discovered all the buttons and keyModifiers were working fine but I was getting no ` calculatePan ` so I looked into the PointerEventTypes available Looks like I might be able to use the ` Scroll` to detect the mouse wheel instead of ` mouseScrollFilter` What would you recommend Also on that thought is there any issue with having multiple ` onPointerEvent` modifiers or is that just the way to do it I guess it is the only option as you d need different types of `PointerEventType` parameters for different input types

Kebbin · Answer

In my old code from the online sample I used it had a do while loop to keep tracking the mouse while the wheel button was down This one is much neater

Igor Demin · Answer

gt I needed to use ` onPointerEvent PointerEventType Move ` instead of ` Press ` Oh right the small detail that didn t catch an eye slightly smiling face gt Looks like I might be able to use the ` Scroll` to detect the mouse wheel instead of ` mouseScrollFilter` What would you recommend `mouseScrollFilter` will be deprecated in 1 1 or in 1 2 better to use ` Scroll` gt or is that just the way to do it Yes that is the way in which ` onPointerEvent` should be used Each `onPointerEvent` creates a separate coroutine so if your application is big it can create 500 coroutines instead of 200 if we would use `pointerInput` And it doesn t sound scary because coroutines are lightweight

Kebbin · Answer

All good Ah OK thanks for the heads up I m having trouble finding the delta extraction anyway

Kebbin · Answer

Awesome A nicely scaling infrastructure then Thanks mate I ll try ` Scroll` now

Kebbin · Answer

Actually yes `PointerEventType Scroll` is what I m working on now I thought you meant a Scroll modifier woozy face

Kebbin · Answer

I can t find how to extract the scroll delta

Kebbin · Answer

Ah I think I have it now I found a section on Mouse scroll listeners in the GitHub 1 0 0 release docs Thanks to whoever has been updating all those docs That is a massive job and one I m supposed to be helping with on our hobby project but I keep getting distracted lately with coding nerd face

Kebbin · Answer

Yep all working Got what I needed Thanks

Kebbin · Answer

Maaaate And I ve got Click amp Drag to New Position working Sooo easy Not like in T oFX like I was trying to use earlier face with hand over mouth

Kebbin · Answer

If only we can sort out the touch targets at X Y rotated angles Not that I would know enough to help but where would I look to find the code that manages touch targets

Kebbin · Answer

Sorry I ll ask the others in the thread where we were talking about it