134 lines
4.4 KiB
C#
134 lines
4.4 KiB
C#
using UnityEngine;
|
|
using System;
|
|
|
|
namespace PixelCrushers.DialogueSystem.UnityGUI
|
|
{
|
|
|
|
/// <summary>
|
|
/// A GUI control that implements GUI.ScrollView. This control measures the size of the
|
|
/// children contained in the scroll view and resizes the content area accordingly.
|
|
/// </summary>
|
|
[AddComponentMenu("")] // Deprecated
|
|
public class GUIScrollView : GUIControl
|
|
{
|
|
|
|
/// <summary>
|
|
/// Show or hide the vertical scrollbar.
|
|
/// </summary>
|
|
public bool showVerticalScrollbar = true;
|
|
|
|
/// <summary>
|
|
/// Show or hide the horizontal scrollbar.
|
|
/// </summary>
|
|
public bool showHorizontalScrollbar = false;
|
|
|
|
/// <summary>
|
|
/// The pixel padding inside the scroll view.
|
|
/// </summary>
|
|
public int padding = 2;
|
|
|
|
/// <summary>
|
|
/// The handler(s) to call when the scroll view needs to measure its children.
|
|
/// </summary>
|
|
public event Action MeasureContentHandler = null;
|
|
|
|
/// <summary>
|
|
/// The handler(s) to call when the scroll view needs to draw its children.
|
|
/// </summary>
|
|
public event Action DrawContentHandler = null;
|
|
|
|
/// <summary>
|
|
/// The width of the content as reported by the MeasureContentHandler.
|
|
/// </summary>
|
|
/// <value>
|
|
/// The width of the content.
|
|
/// </value>
|
|
public float contentWidth { get; set; }
|
|
|
|
/// <summary>
|
|
/// The height of the content as reported by the MeasureContentHandler.
|
|
/// </summary>
|
|
/// <value>
|
|
/// The height of the content.
|
|
/// </value>
|
|
public float contentHeight { get; set; }
|
|
|
|
/// <summary>
|
|
/// Resets the scroll position.
|
|
/// </summary>
|
|
public void ResetScrollPosition()
|
|
{
|
|
scrollViewVector = Vector2.zero;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The current scroll position in the scroll area.
|
|
/// </summary>
|
|
private Vector2 scrollViewVector = Vector2.zero;
|
|
|
|
/// <summary>
|
|
/// Draws the children, taking into account key/controller navigation if enabled.
|
|
/// </summary>
|
|
/// <param name="relativeMousePosition">Relative mouse position.</param>
|
|
public override void DrawChildren(Vector2 relativeMousePosition)
|
|
{
|
|
clipChildren = false;
|
|
Rect scrollContentRect = GetScrollContentRect();
|
|
GUIStyle horizontalScrollbar = showHorizontalScrollbar ? GUI.skin.horizontalScrollbar : GUIStyle.none;
|
|
GUIStyle verticalScrollbar = showVerticalScrollbar ? GUI.skin.verticalScrollbar : GUIStyle.none;
|
|
scrollViewVector = GUI.BeginScrollView(rect, scrollViewVector, scrollContentRect, horizontalScrollbar, verticalScrollbar);
|
|
try
|
|
{
|
|
if (DrawContentHandler != null) DrawContentHandler();
|
|
base.DrawChildren(relativeMousePosition);
|
|
}
|
|
finally
|
|
{
|
|
GUI.EndScrollView();
|
|
}
|
|
}
|
|
|
|
private Rect GetScrollContentRect()
|
|
{
|
|
float sliderWidth = (GUI.skin.verticalSlider.normal.background != null) ? GUI.skin.verticalSlider.normal.background.width : 16f;
|
|
contentWidth = rect.width - sliderWidth;
|
|
MeasureChildrenAsContent();
|
|
if (MeasureContentHandler != null) MeasureContentHandler();
|
|
return new Rect(0, 0, contentWidth, contentHeight);
|
|
}
|
|
|
|
private void MeasureChildrenAsContent()
|
|
{
|
|
if (Children != null)
|
|
{
|
|
foreach (var child in Children)
|
|
{
|
|
contentWidth = Mathf.Max(contentWidth, GetChildXMax(child));
|
|
contentHeight = Mathf.Max(contentHeight, GetChildYMax(child));
|
|
}
|
|
}
|
|
}
|
|
|
|
private float GetChildXMax(GUIControl child)
|
|
{
|
|
return child.rect.xMax;
|
|
}
|
|
|
|
private float GetChildYMax(GUIControl child)
|
|
{
|
|
if (child is GUILabel)
|
|
{
|
|
GUILabel guiLabel = child as GUILabel;
|
|
if ((guiLabel.autoSize != null) && (guiLabel.autoSize.autoSizeHeight))
|
|
{
|
|
guiLabel.Refresh(new Vector2(rect.width, rect.height));
|
|
guiLabel.UpdateLayout();
|
|
}
|
|
}
|
|
return child.rect.yMax;
|
|
}
|
|
|
|
}
|
|
|
|
}
|