454 lines
10 KiB
C#
454 lines
10 KiB
C#
//----------------------------------------------
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// NGUI: Next-Gen UI kit
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// Copyright © 2011-2015 Tasharen Entertainment
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//----------------------------------------------
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using UnityEngine;
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using System.Collections.Generic;
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using Thousandto.Launcher.ExternalLibs;
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/// <summary>
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/// Sprite is a textured element in the UI hierarchy.
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/// </summary>
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[ExecuteInEditMode]
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[AddComponentMenu("NGUI/UI/NGUI Sprite")]
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public class UISprite : UIBasicSprite
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{
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// Cached and saved values
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[HideInInspector][SerializeField] UIAtlas mAtlas;
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[HideInInspector][SerializeField] string mSpriteName;
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// Deprecated, no longer used
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[HideInInspector][SerializeField] bool mFillCenter = true;
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[System.NonSerialized] protected UISpriteData mSprite;
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[System.NonSerialized] bool mSpriteSet = false;
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/// <summary>
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/// Retrieve the material used by the font.
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/// </summary>
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public override Material material { get { return (mAtlas != null) ? mAtlas.spriteMaterial : null; } }
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/// <summary>
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/// Atlas used by this widget.
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/// </summary>
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///
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public UIAtlas atlas
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{
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get
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{
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if (mAtlas != null)
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{
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return mAtlas;
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}
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return mAtlas;
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}
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set
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{
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if (mAtlas != value)
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{
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RemoveFromPanel();
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mAtlas = value;
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mSpriteSet = false;
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mSprite = null;
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// Automatically choose the first sprite
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if (string.IsNullOrEmpty(mSpriteName))
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{
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if (mAtlas != null && mAtlas.spriteList.Count > 0)
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{
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SetAtlasSprite(mAtlas.spriteList[0]);
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mSpriteName = mSprite.name;
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}
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}
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// Re-link the sprite
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if (!string.IsNullOrEmpty(mSpriteName))
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{
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string sprite = mSpriteName;
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mSpriteName = "";
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spriteName = sprite;
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MarkAsChanged();
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}
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}
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}
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}
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/// <summary>
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/// Sprite within the atlas used to draw this widget.
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/// </summary>
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public string spriteName
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{
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get
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{
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return mSpriteName;
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}
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set
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{
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if (string.IsNullOrEmpty(value))
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{
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// If the sprite name hasn't been set yet, no need to do anything
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if (string.IsNullOrEmpty(mSpriteName)) return;
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// Clear the sprite name and the sprite reference
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mSpriteName = "";
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mSprite = null;
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mChanged = true;
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mSpriteSet = false;
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}
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else if (mSpriteName != value)
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{
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// If the sprite name changes, the sprite reference should also be updated
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mSpriteName = value;
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mSprite = null;
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mChanged = true;
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mSpriteSet = false;
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}
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}
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}
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/// <summary>
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/// Is there a valid sprite to work with?
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/// </summary>
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public bool isValid { get { return GetAtlasSprite() != null; } }
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/// <summary>
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/// Whether the center part of the sprite will be filled or not. Turn it off if you want only to borders to show up.
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/// </summary>
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[System.Obsolete("Use 'centerType' instead")]
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public bool fillCenter
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{
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get
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{
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return centerType != AdvancedType.Invisible;
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}
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set
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{
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if (value != (centerType != AdvancedType.Invisible))
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{
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centerType = value ? AdvancedType.Sliced : AdvancedType.Invisible;
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MarkAsChanged();
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}
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}
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}
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/// <summary>
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/// Sliced sprites generally have a border. X = left, Y = bottom, Z = right, W = top.
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/// </summary>
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public override Vector4 border
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{
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get
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{
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UISpriteData sp = GetAtlasSprite();
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if (sp == null) return base.border;
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return new Vector4(sp.borderLeft, sp.borderBottom, sp.borderRight, sp.borderTop);
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}
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}
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/// <summary>
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/// Size of the pixel -- used for drawing.
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/// </summary>
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override public float pixelSize { get { return mAtlas != null ? mAtlas.pixelSize : 1f; } }
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/// <summary>
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/// Minimum allowed width for this widget.
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/// </summary>
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override public int minWidth
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{
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get
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{
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if (type == Type.Sliced || type == Type.Advanced)
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{
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float ps = pixelSize;
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Vector4 b = border * pixelSize;
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int min = Mathf.RoundToInt(b.x + b.z);
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UISpriteData sp = GetAtlasSprite();
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if (sp != null) min += Mathf.RoundToInt(ps * (sp.paddingLeft + sp.paddingRight));
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return Mathf.Max(base.minWidth, ((min & 1) == 1) ? min + 1 : min);
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}
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return base.minWidth;
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}
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}
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/// <summary>
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/// Minimum allowed height for this widget.
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/// </summary>
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override public int minHeight
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{
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get
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{
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if (type == Type.Sliced || type == Type.Advanced)
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{
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float ps = pixelSize;
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Vector4 b = border * pixelSize;
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int min = Mathf.RoundToInt(b.y + b.w);
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UISpriteData sp = GetAtlasSprite();
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if (sp != null) min += Mathf.RoundToInt(ps * (sp.paddingTop + sp.paddingBottom));
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return Mathf.Max(base.minHeight, ((min & 1) == 1) ? min + 1 : min);
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}
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return base.minHeight;
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}
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}
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/// <summary>
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/// Sprite's dimensions used for drawing. X = left, Y = bottom, Z = right, W = top.
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/// This function automatically adds 1 pixel on the edge if the sprite's dimensions are not even.
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/// It's used to achieve pixel-perfect sprites even when an odd dimension sprite happens to be centered.
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/// </summary>
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public override Vector4 drawingDimensions
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{
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get
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{
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Vector2 offset = pivotOffset;
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float x0 = -offset.x * mWidth;
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float y0 = -offset.y * mHeight;
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float x1 = x0 + mWidth;
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float y1 = y0 + mHeight;
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if (GetAtlasSprite() != null && mType != Type.Tiled)
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{
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int padLeft = mSprite.paddingLeft;
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int padBottom = mSprite.paddingBottom;
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int padRight = mSprite.paddingRight;
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int padTop = mSprite.paddingTop;
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if (mType != Type.Simple)
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{
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float ps = pixelSize;
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if (ps != 1f)
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{
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padLeft = Mathf.RoundToInt(ps * padLeft);
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padBottom = Mathf.RoundToInt(ps * padBottom);
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padRight = Mathf.RoundToInt(ps * padRight);
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padTop = Mathf.RoundToInt(ps * padTop);
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}
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}
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int w = mSprite.width + padLeft + padRight;
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int h = mSprite.height + padBottom + padTop;
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float px = 1f;
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float py = 1f;
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if (w > 0 && h > 0 && (mType == Type.Simple || mType == Type.Filled))
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{
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if ((w & 1) != 0) ++padRight;
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if ((h & 1) != 0) ++padTop;
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px = (1f / w) * mWidth;
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py = (1f / h) * mHeight;
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}
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if (mFlip == Flip.Horizontally || mFlip == Flip.Both)
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{
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x0 += padRight * px;
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x1 -= padLeft * px;
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}
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else
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{
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x0 += padLeft * px;
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x1 -= padRight * px;
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}
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if (mFlip == Flip.Vertically || mFlip == Flip.Both)
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{
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y0 += padTop * py;
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y1 -= padBottom * py;
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}
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else
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{
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y0 += padBottom * py;
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y1 -= padTop * py;
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}
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}
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Vector4 br = (mAtlas != null) ? border * pixelSize : Vector4.zero;
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float fw = br.x + br.z;
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float fh = br.y + br.w;
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float vx = Mathf.Lerp(x0, x1 - fw, mDrawRegion.x);
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float vy = Mathf.Lerp(y0, y1 - fh, mDrawRegion.y);
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float vz = Mathf.Lerp(x0 + fw, x1, mDrawRegion.z);
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float vw = Mathf.Lerp(y0 + fh, y1, mDrawRegion.w);
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return new Vector4(vx, vy, vz, vw);
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}
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}
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/// <summary>
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/// Whether the texture is using a premultiplied alpha material.
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/// </summary>
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public override bool premultipliedAlpha { get { return (mAtlas != null) && mAtlas.premultipliedAlpha; } }
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/// <summary>
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/// Retrieve the atlas sprite referenced by the spriteName field.
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/// </summary>
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public UISpriteData GetAtlasSprite ()
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{
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if (!mSpriteSet) mSprite = null;
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if (mSprite == null && mAtlas != null)
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{
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if (!string.IsNullOrEmpty(mSpriteName))
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{
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UISpriteData sp = mAtlas.GetSprite(mSpriteName);
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if (sp == null) return null;
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SetAtlasSprite(sp);
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}
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if (mSprite == null && mAtlas.spriteList.Count > 0)
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{
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UISpriteData sp = mAtlas.spriteList[0];
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if (sp == null) return null;
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SetAtlasSprite(sp);
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if (mSprite == null)
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{
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Debug.LogError(mAtlas.name + " seems to have a null sprite!");
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return null;
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}
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mSpriteName = mSprite.name;
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}
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}
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return mSprite;
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}
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/// <summary>
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/// Set the atlas sprite directly.
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/// </summary>
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protected void SetAtlasSprite (UISpriteData sp)
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{
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mChanged = true;
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mSpriteSet = true;
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if (sp != null)
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{
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mSprite = sp;
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mSpriteName = mSprite.name;
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}
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else
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{
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mSpriteName = (mSprite != null) ? mSprite.name : "";
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mSprite = sp;
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}
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}
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/// <summary>
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/// Adjust the scale of the widget to make it pixel-perfect.
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/// </summary>
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public override void MakePixelPerfect ()
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{
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if (!isValid) return;
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base.MakePixelPerfect();
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if (mType == Type.Tiled) return;
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UISpriteData sp = GetAtlasSprite();
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if (sp == null) return;
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Texture tex = mainTexture;
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if (tex == null) return;
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if (mType == Type.Simple || mType == Type.Filled || !sp.hasBorder)
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{
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if (tex != null)
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{
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int x = Mathf.RoundToInt(pixelSize * (sp.width + sp.paddingLeft + sp.paddingRight));
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int y = Mathf.RoundToInt(pixelSize * (sp.height + sp.paddingTop + sp.paddingBottom));
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if ((x & 1) == 1) ++x;
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if ((y & 1) == 1) ++y;
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width = x;
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height = y;
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}
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}
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}
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/// <summary>
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/// Auto-upgrade.
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/// </summary>
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protected override void OnInit ()
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{
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if (!mFillCenter)
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{
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mFillCenter = true;
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centerType = AdvancedType.Invisible;
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#if UNITY_EDITOR
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NGUITools.SetDirty(this);
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#endif
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}
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base.OnInit();
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}
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/// <summary>
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/// Update the UV coordinates.
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/// </summary>
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protected override bool OnUpdate ()
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{
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var result = base.OnUpdate();
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if (mChanged || !mSpriteSet)
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{
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mSpriteSet = true;
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mSprite = null;
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mChanged = true;
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}
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return result;
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}
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/// <summary>
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/// Virtual function called by the UIPanel that fills the buffers.
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/// </summary>
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public override void OnFill(BetterList<Vector3> verts, BetterList<Vector2> uvs, BetterList<Color32> cols)
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{
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Texture tex = mainTexture;
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if (tex == null) return;
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if (mSprite == null) mSprite = atlas.GetSprite(spriteName);
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if (mSprite == null) return;
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Rect outer = new Rect(mSprite.x, mSprite.y, mSprite.width, mSprite.height);
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Rect inner = new Rect(mSprite.x + mSprite.borderLeft, mSprite.y + mSprite.borderTop,
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mSprite.width - mSprite.borderLeft - mSprite.borderRight,
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mSprite.height - mSprite.borderBottom - mSprite.borderTop);
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outer = NGUIMath.ConvertToTexCoords(outer, tex.width, tex.height);
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inner = NGUIMath.ConvertToTexCoords(inner, tex.width, tex.height);
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int offset = verts != null ? verts.size : 0;
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Fill(verts, uvs, cols, outer, inner);
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if (onPostFill != null)
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//优化NGUI GC
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//because we might change geometry's verts uvs cols value in Fill
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onPostFill(this, offset, geometry.verts, geometry.uvs, geometry.cols);
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//#else
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//onPostFill(this, offset, verts, uvs, cols);
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//优化NGUI GC
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}
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}
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