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feat: improved text-gizmos API.

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+ Can change font size.
+ Can change text alignment (TextAnchor).
+ Can set background color.
+ Can set world scaling.
This commit is contained in:
Demexis 2025-02-26 01:31:16 +02:00
parent a47bf30fef
commit e8c9fce40e
2 changed files with 253 additions and 52 deletions
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52
Runtime/Gizmos/DebugX.base.cs
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@ -222,58 +222,6 @@ namespace DCFApixels
}
#endregion
#region Text
[IN(LINE)] public DrawHandler Text(Vector3 position, object text) => Gizmo(new TextGizmo(position, text));
private readonly struct TextGizmo : IGizmo<TextGizmo>
{
public readonly Vector3 Position;
public readonly string Text;
[IN(LINE)]
public TextGizmo(Vector3 position, object text)
{
Position = position;
Text = text.ToString();
}
public IGizmoRenderer<TextGizmo> RegisterNewRenderer() { return new Renderer(); }
#region Renderer
private class Renderer : IGizmoRenderer_UnityGizmos<TextGizmo>
{
private static GUIStyle _labelStyle;
private static GUIContent _labelDummy;
public int ExecuteOrder => default(UnlitMat).GetExecuteOrder();
public bool IsStaticRender => false;
public void Prepare(Camera camera, GizmosList<TextGizmo> list) { }
public void Render(Camera camera, GizmosList<TextGizmo> list, CommandBuffer cb) { }
public void Render_UnityGizmos(Camera camera, GizmosList<TextGizmo> list)
{
#if UNITY_EDITOR
Color defaultColor = GUI.color;
if (_labelStyle == null || _labelDummy == null)
{
_labelStyle = GUI.skin.label;
_labelStyle.richText = false;
_labelDummy = new GUIContent();
}
Handles.BeginGUI();
foreach (ref readonly var item in list)
{
GUI.color = item.Color * GlobalColor;
_labelDummy.text = item.Value.Text;
if (!(HandleUtility.WorldToGUIPointWithDepth(item.Value.Position).z < 0f))
{
GUI.Label(HandleUtility.WorldPointToSizedRect(item.Value.Position, _labelDummy, _labelStyle), _labelDummy, _labelStyle);
}
}
Handles.EndGUI();
GUI.color = defaultColor;
#endif
}
}
#endregion
}
#endregion
// Base Renderers
#region MeshRendererBase

253
Runtime/Gizmos/DebugX.text.cs Normal file
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@ -0,0 +1,253 @@
using DCFApixels.DebugXCore;
#if UNITY_EDITOR
using UnityEditor;
#endif
using UnityEngine;
using UnityEngine.Rendering;
namespace DCFApixels {
using IN = System.Runtime.CompilerServices.MethodImplAttribute;
public static partial class DebugX {
public readonly partial struct DrawHandler {
#region Text
/// <summary>
/// Draw text at the world position.
/// Can pass any object where ToString() will be called.
/// </summary>
/// <param name="position">World position.</param>
/// <param name="text">String or any other object.</param>
[IN(LINE)] public DrawHandler Text(Vector3 position, object text) => Gizmo(new TextGizmo(new TextBuilder(position, text)));
/// <summary>
/// Draw text at the world position.
/// Can pass any object where ToString() will be called.
/// </summary>
/// <param name="position">World position.</param>
/// <param name="text">String or any other object.</param>
/// <param name="fontSize">Text font size.</param>
[IN(LINE)] public DrawHandler Text(Vector3 position, object text, int fontSize) => Gizmo(new TextGizmo(new TextBuilder(position, text, fontSize)));
/// <summary>
/// Draw text at the world position.
/// Can pass any object where ToString() will be called.
/// </summary>
/// <param name="position">World position.</param>
/// <param name="text">String or any other object.</param>
/// <param name="fontSize">Text font size.</param>
/// <param name="textAnchor">Text alignment.</param>
[IN(LINE)] public DrawHandler Text(Vector3 position, object text, int fontSize, TextAnchor textAnchor) => Gizmo(new TextGizmo(new TextBuilder(position, text, fontSize, textAnchor)));
/// <summary>
/// Use text builder to pass more details about how text-gizmo should be drawn.
/// </summary>
/// <param name="textBuilder">Settings with a builder pattern.</param>
[IN(LINE)] public DrawHandler Text(TextBuilder textBuilder) => Gizmo(new TextGizmo(textBuilder));
private readonly struct TextGizmo : IGizmo<TextGizmo> {
private const int BACKGROUND_TEXTURE_WIDTH = 2;
private const int BACKGROUND_TEXTURE_HEIGHT = 2;
private const int BACKGROUND_TEXTURE_PIXELS_COUNT = BACKGROUND_TEXTURE_WIDTH * BACKGROUND_TEXTURE_HEIGHT;
// TODO: Normally Texture2D should be destroyed when not needed anymore. Though it will live through entire app lifetime. What about editor?
private static Texture2D _backgroundTexture;
private static Color32[] _backgroundTexturePixels;
public readonly TextBuilder TextBuilderInstance;
[IN(LINE)]
public TextGizmo(TextBuilder textBuilder) {
TextBuilderInstance = textBuilder;
CheckTextureInstance();
}
/// <summary>
/// Should be called once after the app domain is cleared.
/// </summary>
private void CheckTextureInstance() {
if (_backgroundTexture != null) {
return;
}
_backgroundTexture = new Texture2D(BACKGROUND_TEXTURE_WIDTH, BACKGROUND_TEXTURE_HEIGHT);
_backgroundTexturePixels = new Color32[BACKGROUND_TEXTURE_PIXELS_COUNT];
_backgroundTexture.SetPixels32(_backgroundTexturePixels);
_backgroundTexture.Apply();
}
public IGizmoRenderer<TextGizmo> RegisterNewRenderer() { return new Renderer(); }
#region Renderer
private class Renderer : IGizmoRenderer_UnityGizmos<TextGizmo>
{
private static GUIStyle _labelStyle;
private static GUIContent _labelDummy;
public int ExecuteOrder => default(UnlitMat).GetExecuteOrder();
public bool IsStaticRender => false;
public void Prepare(Camera camera, GizmosList<TextGizmo> list) { }
public void Render(Camera camera, GizmosList<TextGizmo> list, CommandBuffer cb) { }
public void Render_UnityGizmos(Camera camera, GizmosList<TextGizmo> list)
{
#if UNITY_EDITOR
Color defaultColor = GUI.color;
if (_labelStyle == null || _labelDummy == null)
{
_labelStyle = GUI.skin.label;
_labelStyle.richText = false;
_labelDummy = new GUIContent();
}
Handles.BeginGUI();
foreach (ref readonly var item in list)
{
GUI.color = item.Color * GlobalColor;
_labelDummy.text = item.Value.TextBuilderInstance.Text.ToString();
if (item.Value.TextBuilderInstance.UseWorldScale) {
var zoom = 1f;
var cam = GetCurrentCamera();
if (cam != null) {
zoom = cam.orthographicSize;
} else {
var currentDrawingSceneView = SceneView.currentDrawingSceneView;
if (currentDrawingSceneView != null
&& SceneView.currentDrawingSceneView.camera != null) {
cam = currentDrawingSceneView.camera;
if (camera != null) {
zoom = cam.orthographicSize;
}
}
}
_labelStyle.fontSize = Mathf.FloorToInt(item.Value.TextBuilderInstance.FontSize / zoom);
} else {
_labelStyle.fontSize = item.Value.TextBuilderInstance.FontSize;
}
_labelStyle.alignment = item.Value.TextBuilderInstance.TextAnchor;
_labelStyle.normal = new GUIStyleState {
textColor = item.Color * GlobalColor,
};
if (item.Value.TextBuilderInstance.UseBackground) {
for (int i = 0; i < BACKGROUND_TEXTURE_PIXELS_COUNT; i++) {
_backgroundTexturePixels[i] = item.Value.TextBuilderInstance.BackgroundColor;
}
_backgroundTexture.SetPixels32(_backgroundTexturePixels);
_backgroundTexture.Apply();
_labelStyle.normal.background = _backgroundTexture;
}
if (!(HandleUtility.WorldToGUIPointWithDepth(item.Value.TextBuilderInstance.Position).z < 0f))
{
GUI.Label(HandleUtility.WorldPointToSizedRect(item.Value.TextBuilderInstance.Position, _labelDummy, _labelStyle), _labelDummy, _labelStyle);
}
}
Handles.EndGUI();
GUI.color = defaultColor;
#endif
}
}
#endregion
}
#endregion
#region TextBuilder
/// <summary>
/// Set text gizmos instance settings using a builder pattern.
/// </summary>
public struct TextBuilder {
private const TextAnchor DEFAULT_TEXT_ANCHOR = TextAnchor.MiddleLeft;
private const int DEFAULT_FONT_SIZE = 16;
/// <summary>
/// Text world position.
/// </summary>
public Vector3 Position { get; set; }
/// <summary>
/// Text. Uses ToString() of the passed object.
/// </summary>
public object Text { get; set; }
/// <summary>
/// Font size. Default is <see cref="DEFAULT_FONT_SIZE" />.
/// </summary>
public int FontSize { get; set; }
/// <summary>
/// Text alignment. Default is <see cref="DEFAULT_TEXT_ANCHOR" />.
/// </summary>
public TextAnchor TextAnchor { get; set; }
/// <summary>
/// Background texture color.
/// </summary>
public Color BackgroundColor { get; set; }
/// <summary>
/// Flag to use background texture and background color when rendering text gizmo instance.
/// </summary>
public bool UseBackground { get; set; }
/// <summary>
/// If set true - camera zooming will affect text scale to keep same size in the world.
/// </summary>
public bool UseWorldScale { get; set; }
public TextBuilder(Vector3 position, object text, int fontSize = DEFAULT_FONT_SIZE, TextAnchor textAnchor = DEFAULT_TEXT_ANCHOR) : this() {
Position = position;
Text = text;
FontSize = fontSize;
TextAnchor = textAnchor;
}
public TextBuilder SetPosition(Vector3 position) {
Position = position;
return this;
}
public TextBuilder SetText(object text) {
Text = text;
return this;
}
public TextBuilder SetFontSize(int fontSize) {
FontSize = fontSize;
return this;
}
public TextBuilder SetTextAnchor(TextAnchor textAnchor) {
TextAnchor = textAnchor;
return this;
}
public TextBuilder SetBackground(Color backgroundColor) {
UseBackground = true;
BackgroundColor = backgroundColor;
return this;
}
public TextBuilder RemoveBackground() {
UseBackground = false;
return this;
}
public TextBuilder SetWorldScaling() {
UseWorldScale = true;
return this;
}
public TextBuilder RemoveWorldScaling() {
UseWorldScale = false;
return this;
}
}
#endregion
}
}
}