TMP_SpriteCharacterPropertyDrawer.cs
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using UnityEngine;
using UnityEngine.TextCore;
using UnityEditor;
using System.Collections;
namespace TMPro.EditorUtilities
{
[CustomPropertyDrawer(typeof(TMP_SpriteCharacter))]
public class TMP_SpriteCharacterPropertyDrawer : PropertyDrawer
{
int m_GlyphSelectedForEditing = -1;
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
SerializedProperty prop_SpriteName = property.FindPropertyRelative("m_Name");
SerializedProperty prop_SpriteNameHashCode = property.FindPropertyRelative("m_HashCode");
SerializedProperty prop_SpriteUnicode = property.FindPropertyRelative("m_Unicode");
SerializedProperty prop_SpriteGlyphIndex = property.FindPropertyRelative("m_GlyphIndex");
SerializedProperty prop_SpriteScale = property.FindPropertyRelative("m_Scale");
GUIStyle style = new GUIStyle(EditorStyles.label);
style.richText = true;
EditorGUIUtility.labelWidth = 40f;
EditorGUIUtility.fieldWidth = 50;
Rect rect = new Rect(position.x + 60, position.y, position.width, 49);
// Display non-editable fields
if (GUI.enabled == false)
{
// Sprite Character Index
int spriteCharacterIndex;
int.TryParse(property.displayName.Split(' ')[1], out spriteCharacterIndex);
EditorGUI.LabelField(new Rect(rect.x, rect.y, 75f, 18), new GUIContent("Index: <color=#FFFF80>" + spriteCharacterIndex + "</color>"), style);
EditorGUI.LabelField(new Rect(rect.x + 75f, rect.y, 120f, 18), new GUIContent("Unicode: <color=#FFFF80>0x" + prop_SpriteUnicode.intValue.ToString("X") + "</color>"), style);
EditorGUI.LabelField(new Rect(rect.x + 195f, rect.y, rect.width - 255, 18), new GUIContent("Name: <color=#FFFF80>" + prop_SpriteName.stringValue + "</color>"), style);
EditorGUI.LabelField(new Rect(rect.x, rect.y + 18, 120, 18), new GUIContent("Glyph ID: <color=#FFFF80>" + prop_SpriteGlyphIndex.intValue + "</color>"), style);
// Draw Sprite Glyph (if exists)
DrawSpriteGlyph(position, property);
EditorGUI.LabelField(new Rect(rect.x, rect.y + 36, 80, 18), new GUIContent("Scale: <color=#FFFF80>" + prop_SpriteScale.floatValue + "</color>"), style);
}
else // Display editable fields
{
// Get a reference to the underlying Sprite Asset
TMP_SpriteAsset spriteAsset = property.serializedObject.targetObject as TMP_SpriteAsset;
// Sprite Character Index
int spriteCharacterIndex;
int.TryParse(property.displayName.Split(' ')[1], out spriteCharacterIndex);
EditorGUI.LabelField(new Rect(rect.x, rect.y, 75f, 18), new GUIContent("Index: <color=#FFFF80>" + spriteCharacterIndex + "</color>"), style);
EditorGUIUtility.labelWidth = 55f;
GUI.SetNextControlName("Unicode Input");
EditorGUI.BeginChangeCheck();
string unicode = EditorGUI.DelayedTextField(new Rect(rect.x + 75f, rect.y, 120, 18), "Unicode:", prop_SpriteUnicode.intValue.ToString("X"));
if (GUI.GetNameOfFocusedControl() == "Unicode Input")
{
//Filter out unwanted characters.
char chr = Event.current.character;
if ((chr < '0' || chr > '9') && (chr < 'a' || chr > 'f') && (chr < 'A' || chr > 'F'))
{
Event.current.character = '\0';
}
}
if (EditorGUI.EndChangeCheck())
{
// Update Unicode value
prop_SpriteUnicode.intValue = TMP_TextUtilities.StringHexToInt(unicode);
spriteAsset.m_IsSpriteAssetLookupTablesDirty = true;
}
EditorGUIUtility.labelWidth = 41f;
EditorGUI.BeginChangeCheck();
EditorGUI.DelayedTextField(new Rect(rect.x + 195f, rect.y, rect.width - 255, 18), prop_SpriteName, new GUIContent("Name:"));
if (EditorGUI.EndChangeCheck())
{
// Recompute hashCode for new name
prop_SpriteNameHashCode.intValue = TMP_TextUtilities.GetSimpleHashCode(prop_SpriteName.stringValue);
spriteAsset.m_IsSpriteAssetLookupTablesDirty = true;
}
EditorGUIUtility.labelWidth = 59f;
EditorGUI.BeginChangeCheck();
EditorGUI.DelayedIntField(new Rect(rect.x, rect.y + 18, 100, 18), prop_SpriteGlyphIndex, new GUIContent("Glyph ID:"));
if (EditorGUI.EndChangeCheck())
{
spriteAsset.m_IsSpriteAssetLookupTablesDirty = true;
}
// Draw Sprite Glyph (if exists)
DrawSpriteGlyph(position, property);
int glyphIndex = prop_SpriteGlyphIndex.intValue;
// Reset glyph selection if new character has been selected.
if (GUI.enabled && m_GlyphSelectedForEditing != glyphIndex)
m_GlyphSelectedForEditing = -1;
// Display button to edit the glyph data.
if (GUI.Button(new Rect(rect.x + 120, rect.y + 18, 75, 18), new GUIContent("Edit Glyph")))
{
if (m_GlyphSelectedForEditing == -1)
m_GlyphSelectedForEditing = glyphIndex;
else
m_GlyphSelectedForEditing = -1;
// Button clicks should not result in potential change.
GUI.changed = false;
}
// Show the glyph property drawer if selected
if (glyphIndex == m_GlyphSelectedForEditing && GUI.enabled)
{
if (spriteAsset != null)
{
// Lookup glyph and draw glyph (if available)
int elementIndex = spriteAsset.spriteGlyphTable.FindIndex(item => item.index == glyphIndex);
if (elementIndex != -1)
{
// Get a reference to the Sprite Glyph Table
SerializedProperty prop_SpriteGlyphTable = property.serializedObject.FindProperty("m_SpriteGlyphTable");
SerializedProperty prop_SpriteGlyph = prop_SpriteGlyphTable.GetArrayElementAtIndex(elementIndex);
SerializedProperty prop_GlyphMetrics = prop_SpriteGlyph.FindPropertyRelative("m_Metrics");
SerializedProperty prop_GlyphRect = prop_SpriteGlyph.FindPropertyRelative("m_GlyphRect");
Rect newRect = EditorGUILayout.GetControlRect(false, 115);
EditorGUI.DrawRect(new Rect(newRect.x + 62, newRect.y - 20, newRect.width - 62, newRect.height - 5), new Color(0.1f, 0.1f, 0.1f, 0.45f));
EditorGUI.DrawRect(new Rect(newRect.x + 63, newRect.y - 19, newRect.width - 64, newRect.height - 7), new Color(0.3f, 0.3f, 0.3f, 0.8f));
// Display GlyphRect
newRect.x += 65;
newRect.y -= 18;
newRect.width += 5;
EditorGUI.PropertyField(newRect, prop_GlyphRect);
// Display GlyphMetrics
newRect.y += 45;
EditorGUI.PropertyField(newRect, prop_GlyphMetrics);
rect.y += 120;
}
}
}
EditorGUIUtility.labelWidth = 39f;
EditorGUI.PropertyField(new Rect(rect.x, rect.y + 36, 80, 18), prop_SpriteScale, new GUIContent("Scale:"));
}
}
public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
return 58;
}
void DrawSpriteGlyph(Rect position, SerializedProperty property)
{
// Get a reference to the sprite glyph table
TMP_SpriteAsset spriteAsset = property.serializedObject.targetObject as TMP_SpriteAsset;
if (spriteAsset == null)
return;
int glyphIndex = property.FindPropertyRelative("m_GlyphIndex").intValue;
// Lookup glyph and draw glyph (if available)
int elementIndex = spriteAsset.spriteGlyphTable.FindIndex(item => item.index == glyphIndex);
if (elementIndex != -1)
{
// Get a reference to the Sprite Glyph Table
SerializedProperty prop_SpriteGlyphTable = property.serializedObject.FindProperty("m_SpriteGlyphTable");
SerializedProperty prop_SpriteGlyph = prop_SpriteGlyphTable.GetArrayElementAtIndex(elementIndex);
SerializedProperty prop_GlyphRect = prop_SpriteGlyph.FindPropertyRelative("m_GlyphRect");
// Get a reference to the sprite texture
Texture tex = spriteAsset.spriteSheet;
// Return if we don't have a texture assigned to the sprite asset.
if (tex == null)
{
Debug.LogWarning("Please assign a valid Sprite Atlas texture to the [" + spriteAsset.name + "] Sprite Asset.", spriteAsset);
return;
}
Vector2 spriteTexPosition = new Vector2(position.x, position.y);
Vector2 spriteSize = new Vector2(48, 48);
Vector2 alignmentOffset = new Vector2((58 - spriteSize.x) / 2, (58 - spriteSize.y) / 2);
float x = prop_GlyphRect.FindPropertyRelative("m_X").intValue;
float y = prop_GlyphRect.FindPropertyRelative("m_Y").intValue;
float spriteWidth = prop_GlyphRect.FindPropertyRelative("m_Width").intValue;
float spriteHeight = prop_GlyphRect.FindPropertyRelative("m_Height").intValue;
if (spriteWidth >= spriteHeight)
{
spriteSize.y = spriteHeight * spriteSize.x / spriteWidth;
spriteTexPosition.y += (spriteSize.x - spriteSize.y) / 2;
}
else
{
spriteSize.x = spriteWidth * spriteSize.y / spriteHeight;
spriteTexPosition.x += (spriteSize.y - spriteSize.x) / 2;
}
// Compute the normalized texture coordinates
Rect texCoords = new Rect(x / tex.width, y / tex.height, spriteWidth / tex.width, spriteHeight / tex.height);
GUI.DrawTextureWithTexCoords(new Rect(spriteTexPosition.x + alignmentOffset.x, spriteTexPosition.y + alignmentOffset.y, spriteSize.x, spriteSize.y), tex, texCoords, true);
}
}
}
}