forked from Shardstone/trail-into-darkness
107 lines
4.4 KiB
C#
107 lines
4.4 KiB
C#
using Jovian.EncounterSystem;
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using UnityEditor;
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using UnityEngine;
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namespace Jovian.EncounterSystem.Editor {
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/// <summary>Id dropdown (library inherited from the owning asset's <c>library</c> field) + inline fallback + resolved preview.</summary>
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[CustomPropertyDrawer(typeof(DialogLineRef))]
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public class DialogLineRefDrawer : PropertyDrawer {
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private const string NonePlaceholder = "<none>";
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private const string EmptyLibraryPlaceholder = "<set library on the parent asset>";
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private const float PreviewHeight = 32f;
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public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) {
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var idProp = property.FindPropertyRelative("id");
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var inlineProp = property.FindPropertyRelative("inlineText");
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var library = ResolveLibrary(property);
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EditorGUI.BeginProperty(position, label, property);
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var lineHeight = EditorGUIUtility.singleLineHeight;
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var spacing = EditorGUIUtility.standardVerticalSpacing;
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var idRect = new Rect(position.x, position.y, position.width, lineHeight);
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DrawIdPicker(idRect, library, idProp, label);
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var inlineRect = new Rect(
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position.x,
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position.y + lineHeight + spacing,
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position.width,
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lineHeight * 2);
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EditorGUI.PropertyField(inlineRect, inlineProp, new GUIContent("Inline"));
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var previewRect = new Rect(
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position.x,
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position.y + lineHeight + spacing + lineHeight * 2 + spacing,
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position.width,
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PreviewHeight);
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DrawPreview(previewRect, library, idProp, inlineProp);
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EditorGUI.EndProperty();
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}
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public override float GetPropertyHeight(SerializedProperty property, GUIContent label) {
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var lineHeight = EditorGUIUtility.singleLineHeight;
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var spacing = EditorGUIUtility.standardVerticalSpacing;
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// id + (inline 2 lines) + preview
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return lineHeight + spacing + lineHeight * 2 + spacing + PreviewHeight;
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}
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private static DialogLineLibrary ResolveLibrary(SerializedProperty property) {
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var libraryProp = property.serializedObject.FindProperty("library");
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return libraryProp?.objectReferenceValue as DialogLineLibrary;
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}
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private static void DrawIdPicker(Rect rect, DialogLineLibrary library, SerializedProperty idProp, GUIContent label) {
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if(library == null || library.lines == null || library.lines.Count == 0) {
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using(new EditorGUI.DisabledScope(true)) {
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EditorGUI.Popup(rect, label.text, 0, new[] { EmptyLibraryPlaceholder });
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}
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return;
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}
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var count = library.lines.Count;
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var ids = new string[count + 1];
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var names = new string[count + 1];
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ids[0] = string.Empty;
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names[0] = NonePlaceholder;
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var currentIndex = 0;
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for(int i = 0; i < count; i++) {
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var line = library.lines[i];
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var id = line?.id ?? string.Empty;
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ids[i + 1] = id;
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names[i + 1] = string.IsNullOrEmpty(id) ? $"<unnamed {i}>" : id;
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if(id == idProp.stringValue && !string.IsNullOrEmpty(id)) {
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currentIndex = i + 1;
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}
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}
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var newIndex = EditorGUI.Popup(rect, label.text, currentIndex, names);
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if(newIndex != currentIndex) {
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idProp.stringValue = ids[newIndex];
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}
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}
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private static void DrawPreview(Rect rect, DialogLineLibrary library, SerializedProperty idProp, SerializedProperty inlineProp) {
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var id = idProp.stringValue;
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var inline = inlineProp.stringValue;
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string resolved = null;
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if(library != null && !string.IsNullOrEmpty(id)) {
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resolved = library.Resolve(id);
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}
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if(string.IsNullOrEmpty(resolved)) {
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resolved = inline;
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}
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var style = new GUIStyle(EditorStyles.helpBox) {
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fontStyle = FontStyle.Italic,
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wordWrap = true
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};
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var label = string.IsNullOrEmpty(resolved) ? "<no text will display>" : resolved;
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EditorGUI.LabelField(rect, new GUIContent("Preview: " + label), style);
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}
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}
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}
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