Files
UnityExplorer/src/UnstripFixes/SliderHandlerUnstrip.cs
sinaioutlander 9836566e55 tidy up
2020-09-05 01:30:50 +10:00

372 lines
9.1 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;
using UnhollowerRuntimeLib;
namespace Explorer
{
public struct SliderHandlerUnstrip
{
private readonly Rect position;
private readonly float currentValue;
private readonly float size;
private readonly float start;
private readonly float end;
private readonly GUIStyle slider;
private readonly GUIStyle thumb;
private readonly bool horiz;
private readonly int id;
public SliderHandlerUnstrip(Rect position, float currentValue, float size, float start, float end, GUIStyle slider, GUIStyle thumb, bool horiz, int id)
{
this.position = position;
this.currentValue = currentValue;
this.size = size;
this.start = start;
this.end = end;
this.slider = slider;
this.thumb = thumb;
this.horiz = horiz;
this.id = id;
}
public float Handle()
{
float result;
if (this.slider == null || this.thumb == null)
{
result = this.currentValue;
}
else
{
switch (this.CurrentEventType())
{
case EventType.MouseDown:
return this.OnMouseDown();
case EventType.MouseUp:
return this.OnMouseUp();
case EventType.MouseDrag:
return this.OnMouseDrag();
case EventType.Repaint:
return this.OnRepaint();
}
result = this.currentValue;
}
return result;
}
private float OnMouseDown()
{
float result;
if (!this.position.Contains(this.CurrentEvent().mousePosition) || this.IsEmptySlider())
{
result = this.currentValue;
}
else
{
GUI.scrollTroughSide = 0;
GUIUtility.hotControl = this.id;
this.CurrentEvent().Use();
if (this.ThumbSelectionRect().Contains(this.CurrentEvent().mousePosition))
{
this.StartDraggingWithValue(this.ClampedCurrentValue());
result = this.currentValue;
}
else
{
GUI.changed = true;
if (this.SupportsPageMovements())
{
this.SliderState().isDragging = false;
GUI.nextScrollStepTime = SystemClock.now.AddMilliseconds(250.0);
GUI.scrollTroughSide = this.CurrentScrollTroughSide();
result = this.PageMovementValue();
}
else
{
float num = this.ValueForCurrentMousePosition();
this.StartDraggingWithValue(num);
result = this.Clamp(num);
}
}
}
return result;
}
private float OnMouseDrag()
{
float result;
if (GUIUtility.hotControl != this.id)
{
result = this.currentValue;
}
else
{
SliderState sliderState = this.SliderState();
if (!sliderState.isDragging)
{
result = this.currentValue;
}
else
{
GUI.changed = true;
this.CurrentEvent().Use();
float num = this.MousePosition() - sliderState.dragStartPos;
float value = sliderState.dragStartValue + num / this.ValuesPerPixel();
result = this.Clamp(value);
}
}
return result;
}
private float OnMouseUp()
{
if (GUIUtility.hotControl == this.id)
{
this.CurrentEvent().Use();
GUIUtility.hotControl = 0;
}
return this.currentValue;
}
private float OnRepaint()
{
this.slider.Draw(this.position, GUIContent.none, this.id);
if (!this.IsEmptySlider() && this.currentValue >= this.MinValue() && this.currentValue <= this.MaxValue())
{
this.thumb.Draw(this.ThumbRect(), GUIContent.none, this.id);
}
float result;
if (GUIUtility.hotControl != this.id || !this.position.Contains(this.CurrentEvent().mousePosition) || this.IsEmptySlider())
{
result = this.currentValue;
}
else if (this.ThumbRect().Contains(this.CurrentEvent().mousePosition))
{
if (GUI.scrollTroughSide != 0)
{
GUIUtility.hotControl = 0;
}
result = this.currentValue;
}
else
{
GUI.InternalRepaintEditorWindow();
if (SystemClock.now < GUI.nextScrollStepTime)
{
result = this.currentValue;
}
else if (this.CurrentScrollTroughSide() != GUI.scrollTroughSide)
{
result = this.currentValue;
}
else
{
GUI.nextScrollStepTime = SystemClock.now.AddMilliseconds(30.0);
if (this.SupportsPageMovements())
{
this.SliderState().isDragging = false;
GUI.changed = true;
result = this.PageMovementValue();
}
else
{
result = this.ClampedCurrentValue();
}
}
}
return result;
}
private EventType CurrentEventType()
{
return this.CurrentEvent().GetTypeForControl(this.id);
}
private int CurrentScrollTroughSide()
{
float num = (!this.horiz) ? this.CurrentEvent().mousePosition.y : this.CurrentEvent().mousePosition.x;
float num2 = (!this.horiz) ? this.ThumbRect().y : this.ThumbRect().x;
return (num <= num2) ? -1 : 1;
}
private bool IsEmptySlider()
{
return this.start == this.end;
}
private bool SupportsPageMovements()
{
return this.size != 0f && GUI.usePageScrollbars;
}
private float PageMovementValue()
{
float num = this.currentValue;
int num2 = (this.start <= this.end) ? 1 : -1;
if (this.MousePosition() > this.PageUpMovementBound())
{
num += this.size * (float)num2 * 0.9f;
}
else
{
num -= this.size * (float)num2 * 0.9f;
}
return this.Clamp(num);
}
private float PageUpMovementBound()
{
float result;
if (this.horiz)
{
result = this.ThumbRect().xMax - this.position.x;
}
else
{
result = this.ThumbRect().yMax - this.position.y;
}
return result;
}
private Event CurrentEvent()
{
return Event.current;
}
private float ValueForCurrentMousePosition()
{
float result;
if (this.horiz)
{
result = (this.MousePosition() - this.ThumbRect().width * 0.5f) / this.ValuesPerPixel() + this.start - this.size * 0.5f;
}
else
{
result = (this.MousePosition() - this.ThumbRect().height * 0.5f) / this.ValuesPerPixel() + this.start - this.size * 0.5f;
}
return result;
}
private float Clamp(float value)
{
return Mathf.Clamp(value, this.MinValue(), this.MaxValue());
}
private Rect ThumbSelectionRect()
{
return this.ThumbRect();
}
private void StartDraggingWithValue(float dragStartValue)
{
SliderState sliderState = this.SliderState();
sliderState.dragStartPos = this.MousePosition();
sliderState.dragStartValue = dragStartValue;
sliderState.isDragging = true;
}
private SliderState SliderState()
{
return (SliderState)GUIUtility.GetStateObject(Il2CppType.Of<SliderState>(), this.id).TryCast<SliderState>();
}
private Rect ThumbRect()
{
return (!this.horiz) ? this.VerticalThumbRect() : this.HorizontalThumbRect();
}
private Rect VerticalThumbRect()
{
float num = this.ValuesPerPixel();
Rect result;
if (this.start < this.end)
{
result = new Rect(this.position.x + (float)this.slider.padding.left, (this.ClampedCurrentValue() - this.start) * num + this.position.y + (float)this.slider.padding.top, this.position.width - (float)this.slider.padding.horizontal, this.size * num + this.ThumbSize());
}
else
{
result = new Rect(this.position.x + (float)this.slider.padding.left, (this.ClampedCurrentValue() + this.size - this.start) * num + this.position.y + (float)this.slider.padding.top, this.position.width - (float)this.slider.padding.horizontal, this.size * -num + this.ThumbSize());
}
return result;
}
private Rect HorizontalThumbRect()
{
float num = this.ValuesPerPixel();
Rect result;
if (this.start < this.end)
{
result = new Rect((this.ClampedCurrentValue() - this.start) * num + this.position.x + (float)this.slider.padding.left, this.position.y + (float)this.slider.padding.top, this.size * num + this.ThumbSize(), this.position.height - (float)this.slider.padding.vertical);
}
else
{
result = new Rect((this.ClampedCurrentValue() + this.size - this.start) * num + this.position.x + (float)this.slider.padding.left, this.position.y, this.size * -num + this.ThumbSize(), this.position.height);
}
return result;
}
private float ClampedCurrentValue()
{
return this.Clamp(this.currentValue);
}
private float MousePosition()
{
float result;
if (this.horiz)
{
result = this.CurrentEvent().mousePosition.x - this.position.x;
}
else
{
result = this.CurrentEvent().mousePosition.y - this.position.y;
}
return result;
}
private float ValuesPerPixel()
{
float result;
if (this.horiz)
{
result = (this.position.width - (float)this.slider.padding.horizontal - this.ThumbSize()) / (this.end - this.start);
}
else
{
result = (this.position.height - (float)this.slider.padding.vertical - this.ThumbSize()) / (this.end - this.start);
}
return result;
}
private float ThumbSize()
{
float result;
if (this.horiz)
{
result = ((this.thumb.fixedWidth == 0f) ? ((float)this.thumb.padding.horizontal) : this.thumb.fixedWidth);
}
else
{
result = ((this.thumb.fixedHeight == 0f) ? ((float)this.thumb.padding.vertical) : this.thumb.fixedHeight);
}
return result;
}
private float MaxValue()
{
return Mathf.Max(this.start, this.end) - this.size;
}
private float MinValue()
{
return Mathf.Min(this.start, this.end);
}
}
}