69 lines
2.3 KiB
C#
69 lines
2.3 KiB
C#
using System;
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using UnityEditor.Toolbars;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace UnityEditor.Tilemaps
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{
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/// <summary>
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/// Dropdown Button for selecting the Active Brush for Grid Painting.
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/// </summary>
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[EditorToolbarElement(k_ToolbarId)]
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[UxmlElement]
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public sealed partial class TilePaletteBrushesButton : EditorToolbarDropdown
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{
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private new static readonly string ussClassName = "unity-tilepalette-brushes-button";
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internal const string k_ToolbarId = "Tile Palette/Brushes Button";
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private const string k_IconPath = "Packages/com.unity.2d.tilemap/Editor/Icons/Tilemap.CustomBrush.png";
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private Texture2D m_DefaultIcon;
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/// <summary>
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/// Initializes and returns an instance of TilePaletteBrushesButton.
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/// </summary>
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public TilePaletteBrushesButton()
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{
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AddToClassList(ussClassName);
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TilePaletteOverlayUtility.SetStyleSheet(this);
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m_DefaultIcon = EditorGUIUtility.LoadIcon(k_IconPath);
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icon = m_DefaultIcon;
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RegisterCallback<AttachToPanelEvent>(OnAttachedToPanel);
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RegisterCallback<DetachFromPanelEvent>(OnDetachFromPanel);
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clicked += OnClicked;
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}
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private void OnAttachedToPanel(AttachToPanelEvent evt)
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{
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GridPaintingState.brushChanged += OnBrushChanged;
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UpdateBrush();
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}
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private void OnBrushChanged(GridBrushBase obj)
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{
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UpdateBrush();
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}
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private void OnDetachFromPanel(DetachFromPanelEvent evt)
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{
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GridPaintingState.brushChanged -= OnBrushChanged;
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}
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private void UpdateBrush()
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{
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var defaultTooltip = TilePaletteBrushesLabel.kNullBrushName;
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var defaultIcon = m_DefaultIcon;
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tooltip = GridPaintingState.gridBrush != null ? GridPaintingState.gridBrush.name : defaultTooltip;
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icon = GridPaintingState.activeBrushEditor != null && GridPaintingState.activeBrushEditor.icon != null ? GridPaintingState.activeBrushEditor.icon : defaultIcon;
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}
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private void OnClicked()
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{
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AbstractGenericMenu menu = new TilePaletteBrushesDropdownMenu(true, 0);
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menu.DropDown(worldBound, this, DropdownMenuSizeMode.Fixed);
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}
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}
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}
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