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Code Issues Releases Wiki Activity

Implement a selection dragger box

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smoogipoo 2017-11-30 22:01:49 +09:00
parent 52ba68e25d
commit f6591851c3
1 changed files with 50 additions and 0 deletions
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50
osu.Game/Rulesets/Edit/PlayfieldOverlay.cs
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@ -1,19 +1,69 @@
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Primitives;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Input;
using OpenTK;
using OpenTK.Graphics;
namespace osu.Game.Rulesets.Edit
{
public class PlayfieldOverlay : CompositeDrawable
{
private readonly Drawable dragBox;
public PlayfieldOverlay()
{
RelativeSizeAxes = Axes.Both;
InternalChildren = new[]
{
dragBox = new Container
{
Masking = true,
BorderColour = Color4.White,
BorderThickness = 2,
MaskingSmoothness = 1,
Child = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0,
AlwaysPresent = true
}
}
};
}
private Vector2 dragStartPos;
protected override bool OnDragStart(InputState state)
{
dragStartPos = ToLocalSpace(state.Mouse.NativeState.Position);
return true;
}
protected override bool OnDrag(InputState state)
{
var dragPos = ToLocalSpace(state.Mouse.NativeState.Position);
var dragRectangle = RectangleF.FromLTRB(
Math.Min(dragStartPos.X, dragPos.X),
Math.Min(dragStartPos.Y, dragPos.Y),
Math.Max(dragStartPos.X, dragPos.X),
Math.Max(dragStartPos.Y, dragPos.Y));
dragBox.Position = dragRectangle.Location;
dragBox.Size = dragRectangle.Size;
return true;
}
protected override bool OnDragEnd(InputState state)
{
return true;
}
}
}