A user interface toolkit mainly for audio plug-ins (VST, AudioUnit, etc).
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pongasoft
- Posts: 89
- Joined: Sun Mar 11, 2018 5:57 pm
- Location: Las Vegas, USA
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Post
by pongasoft » Wed Aug 14, 2019 3:02 pm
I am implementing a custom view and I would like to have a "rotation" attribute that would rotate the drawing.
So I would like to implement something like this:
Code: Select all
void MyCustomView::Draw(CDrawContext *ctx)
{
if(fRotation != 0) {
// save state
// apply rotation
}
ctx->draw...
ctx->draw...
ctx->draw...
...
if(fRotation != 0) {
// restore saved state
}
}
If I call ctx->getCurrentTransform() it returns a const object so I cannot modify it. There is no setCurrentTransform method. And the pushTransform method is protected.
How do I implement such a thing?
Thanks
Yan
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Arne Scheffler
- Posts: 304
- Joined: Mon Jun 20, 2016 7:53 am
Post
by Arne Scheffler » Wed Aug 14, 2019 7:53 pm
Hi,
read through the CParamDisplay::drawPlatformText() implementation. There the text is being drawn rotated. This should give you enough pointers how to do it.
Cheers,
Arne