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Added scaling towards mouse position in Visject surfaces

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This commit is contained in:
Chandler Cox
2022-09-17 11:43:51 -05:00
parent 66b452e90c
commit 21db53e232
1 changed files with 17 additions and 3 deletions
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20
Source/Editor/Surface/VisjectSurface.Input.cs
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@@ -290,9 +290,23 @@ namespace FlaxEditor.Surface
// Change scale (disable scaling during selecting nodes)
if (IsMouseOver && !_leftMouseDown && !IsPrimaryMenuOpened)
{
var viewCenter = ViewCenterPosition;
ViewScale += delta * 0.1f;
ViewCenterPosition = viewCenter;
var nextViewScale = ViewScale + delta * 0.1f;
if (delta > 0 && !_rightMouseDown)
{
// Scale towards mouse when zooming in
var nextCenterPosition = ViewPosition + location / ViewScale;
ViewScale = nextViewScale;
ViewPosition = nextCenterPosition - (location / ViewScale);
}
else
{
// Scale while keeping center position when zooming out or when dragging view
var viewCenter = ViewCenterPosition;
ViewScale = nextViewScale;
ViewCenterPosition = viewCenter;
}
return true;
}