68 lines
1.9 KiB
C#
68 lines
1.9 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEditor;
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namespace AYellowpaper.SerializedCollections.Editor
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{
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public class PagingElement
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{
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public int Page
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{
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get => _page;
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set
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{
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_page = value;
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EnsureValidPageIndex();
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}
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}
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public int PageCount
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{
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get => _pageCount;
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set
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{
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Debug.Assert(value >= 1, $"{nameof(PageCount)} needs to be 1 or larger but is {value}.");
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_pageCount = value;
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EnsureValidPageIndex();
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}
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}
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private const int buttonWidth = 20;
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private const int inputWidth = 20;
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private const int labelWidth = 30;
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private int _page = 1;
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private int _pageCount = 1;
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public PagingElement(int pageCount = 1)
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{
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PageCount = pageCount;
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}
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public float GetDesiredWidth()
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{
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return buttonWidth * 2 + inputWidth + labelWidth;
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}
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public void OnGUI(Rect rect)
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{
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Rect leftButton = rect.WithXAndWidth(rect.x, buttonWidth);
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Rect inputRect = leftButton.AppendRight(inputWidth);
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Rect labelRect = inputRect.AppendRight(labelWidth);
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Rect rightButton = labelRect.AppendRight(buttonWidth);
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using (new GUIEnabledScope(Page != 1))
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if (GUI.Button(leftButton, "<"))
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Page--;
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using (new GUIEnabledScope(Page != PageCount))
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if (GUI.Button(rightButton, ">"))
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Page++;
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Page = EditorGUI.IntField(inputRect, Page);
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GUI.Label(labelRect, "/" + PageCount.ToString());
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}
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private void EnsureValidPageIndex()
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{
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_page = Mathf.Clamp(_page, 1, PageCount);
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}
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}
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}
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