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Scrollable and zoomable canvas #12

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orchetect opened this issue Sep 3, 2022 · 5 comments
Closed

Scrollable and zoomable canvas #12

orchetect opened this issue Sep 3, 2022 · 5 comments

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@orchetect
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orchetect commented Sep 3, 2022 •
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  • Implement ScrollView to allow scrolling of canvas
    • (ideally with scroll offset point as a binding)
  • Implement MagnificationGesture to scale the canvas in response to trackpad pinch to zoom in/out
    • (ideally with scale factor value as a binding)

I have a working proof-of-concept for these with bindings implemented that would need some polish
@wtholliday
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wtholliday commented Sep 3, 2022 •
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We can't put a Canvas inside as ScrollView, because Canvas renders to a texture which could be too big. Aure and I found this out while working on PianoRoll.

Instead we should apply transformations when rendering and their inverses when processing events

@orchetect
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Related: #1

@wtholliday
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This is now implemented for iOS, but ran into issues on macOS.

@wtholliday
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macOS now working :)

@fontno
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fontno commented Sep 24, 2024

How do you scroll and zoom?

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@fontno @wtholliday @orchetect