koobas.hobune.stream
TextArea/Field - Individual Character's foreground and background color.
Hello everyone, I might be missing this in the docs, if so point me at it please.
I would like to find out if it is possible to change the individual foreground and background colors on a per character basis within a TextArea/TextField.
I know that you can change the whole thing with a GUIStyle but I can't seem to find (if it is possible) how to change the individual colors.
thanks.
Update: I added an image as an example of the output that I would need to achieve.
Best Answer
We were just talking about that forum post in IRC and it won't work for my needs. However it does prove that Unity can't do exactly what I am asking so I will need to roll my own. thanks.
using UnityEngine;
using System.Collections;
public class MulticolorTextArea : MonoBehaviour
{
public string stringToEdit = "Hello World\nI've got 2 lines...";
void OnGUI()
{
//backup color
Color backupColor = GUI.color;
Color backupContentColor = GUI.contentColor;
Color backupBackgroundColor = GUI.backgroundColor;
//add textarea with transparent text
GUI.contentColor = new Color(1f, 1f, 1f, 0f);
GUIStyle style = new GUIStyle(GUI.skin.textArea);
Rect bounds = new Rect(10, 20, Screen.width - 10, Screen.height - 20);
stringToEdit = GUI.TextArea(bounds, stringToEdit);
//get the texteditor of the textarea to control selection
int controlID = GUIUtility.GetControlID(bounds.GetHashCode(), FocusType.Keyboard);
TextEditor editor = (TextEditor)GUIUtility.GetStateObject(typeof(TextEditor), controlID -1);
//set background of all textfield transparent
GUI.backgroundColor = new Color(1f, 1f, 1f, 0f);
//backup selection to remake it after process
int backupPos = editor.pos;
int backupSelPos = editor.selectPos;
//get last position in text
editor.MoveTextEnd();
int endpos = editor.pos;
Random.seed = 123;
//draw textfield with color on top of text area
editor.MoveTextStart();
while (editor.pos != endpos)
{
editor.SelectToStartOfNextWord();
string wordtext = editor.SelectedText;
//set word color
GUI.contentColor = new Color(Random.Range(0f, 1f), Random.Range(0f, 1f), Random.Range(0f, 1f));
//draw each word with a random color
Vector2 pixelselpos = style.GetCursorPixelPosition(editor.position, editor.content, editor.selectPos);
Vector2 pixelpos = style.GetCursorPixelPosition(editor.position, editor.content, editor.pos);
GUI.TextField(new Rect(pixelselpos.x - style.border.left, pixelselpos.y - style.border.top, pixelpos.x, pixelpos.y), wordtext);
editor.MoveToStartOfNextWord();
}
//Reposition selection
Vector2 bkpixelselpos = style.GetCursorPixelPosition(editor.position, editor.content, backupSelPos);
editor.MoveCursorToPosition(bkpixelselpos);
//Remake selection
Vector2 bkpixelpos = style.GetCursorPixelPosition(editor.position, editor.content, backupPos);
editor.SelectToPosition(bkpixelpos);
//Reset color
GUI.color = backupColor;
GUI.contentColor = backupContentColor;
GUI.backgroundColor = backupBackgroundColor;
}
}
