As soon as I can finish up some things I’ll be releasing this new script editor I’m working on. Please see snapshot at the bottom for what I have so far…
Features :
- syntax highlighting
- reads all script types - .shader, .cs, .js, .boo, .txt, .ini, etc…
- saving, loading, and creating of new scripts
- more to come
The great thing about this new editor is you no longer have to leave unity to code any more
Release notes
-
Version 1.0
-
Load, Create and Save features added
-
Color coding of text added
-
Basic syntax highlighting
-
Version 1.0.1
-
Menu bar added
-
Support for multiple files open at once added
Bugs List
- Comments and Strings syntax highlights will sometimes continue onto the next line
- Comments containing ‘/* … */’ Don’t highlight correctly at the end;
- Text Editor Doesn’t refresh when you open a file or switch between them. To refresh just click back inside the textfield.
- Line numbering doesn’t take into account wrapping text.
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;
using System.IO;
public class ScriptEditor : EditorWindow
{
string s = "";
int lines = 0;
string path = Application.dataPath;
Vector2 scrollPos = new Vector2 ( );
GUIStyle textStyle = new GUIStyle();
Vector2 tSize = new Vector2();
bool isCommenting = false;
bool isString = false;
bool commentAffectsNextLine = false;
List<string> redos = new List<string> ( );
int toolbarMenuIndex = -1;
string[] fileOptions = new string [ ]
{
"New",
"Load",
"Save",
"Save as",
"Close Tab",
"Close All Tabs"
};
string[] editOptions = new string [ ]
{
"Cut",
"Copy",
"Paste"
};
#region cSharp namespaces
public List<string> cNamespaces = new List<string> ( )
{
"abstract",
"as",
"base",
"break",
"bool",
"by",
"byte",
"case",
"catch",
"char",
"checked",
"class",
"const",
"continue",
"decimal",
"default",
"delegate",
"do",
"double",
"else",
"enum",
"event",
"explicit",
"extern",
"false",
"finally",
"fixed",
"float",
"for",
"foreach",
"from",
"group",
"if",
"implicit",
"in",
"int",
"interface",
"internal",
"into",
"is",
"lock",
"long",
"namespace",
"new",
"null",
"object",
"operator",
"out",
"override",
"params",
"private",
"protected",
"public",
"readonly",
"ref",
"return",
"sbyte",
"sealed",
"select",
"sizeof",
"short",
"stackalloc",
"static",
"string",
"struct",
"switch",
"this",
"throw",
"true",
"try",
"typeof",
"unchecked",
"uint",
"ulong",
"unsafe",
"using",
"var",
"virtual",
"volatile",
"void",
"where",
"while",
"yield"
};
#endregion
List<Tab> fileTabs = new List<Tab> ( );
int fileTabIndex = -1;
// Use this for initialization
[MenuItem ( "Window/Script Editor" )]
static void Init ( )
{
ScriptEditor window = ( ScriptEditor )EditorWindow.GetWindow ( typeof ( ScriptEditor ), false, "Script Editor" );
window.s= "";
window.lines = 0;
window.textStyle = null;
window.minSize = new Vector2 ( 200, 100 );
window.cNamespaces = new List<string> ( )
{
"abstract",
"as",
"base",
"break",
"bool",
"by",
"byte",
"case",
"catch",
"char",
"checked",
"class",
"const",
"continue",
"decimal",
"default",
"delegate",
"do",
"double",
"else",
"enum",
"event",
"explicit",
"extern",
"false",
"finally",
"fixed",
"float",
"for",
"foreach",
"from",
"group",
"if",
"implicit",
"in",
"int",
"interface",
"internal",
"into",
"is",
"lock",
"long",
"namespace",
"new",
"null",
"object",
"operator",
"out",
"override",
"params",
"private",
"protected",
"public",
"readonly",
"ref",
"return",
"sbyte",
"sealed",
"select",
"sizeof",
"short",
"stackalloc",
"static",
"string",
"struct",
"switch",
"this",
"throw",
"true",
"try",
"typeof",
"unchecked",
"uint",
"ulong",
"unsafe",
"using",
"var",
"virtual",
"volatile",
"void",
"where",
"while",
"yield"
};
}
class Tab
{
public string fileName;
public string filePath;
public string fileText;
public Tab (string name, string path, string text )
{
fileName = name;
filePath = path;
fileText = text;
}
}
// Update is called once per frame
void OnGUI ()
{
if(textStyle == null)
textStyle = new GUIStyle ( GUI.skin.textArea );
TextEditor te = ( TextEditor )GUIUtility.GetStateObject ( typeof ( TextEditor ), GUIUtility.keyboardControl );
//backup color
Color backupColor = Color.white;
Color backupContentColor = Color.black;
Color backupBackgroundColor = GUI.backgroundColor;
GUI.Box ( new Rect ( 0, 0, position.width, 20 ), "", "toolbar" );
toolbarMenuIndex = EditorGUI.Popup ( new Rect ( 0, 0, 40, 20 ), toolbarMenuIndex, fileOptions, "toolbarButton" );
GUI.Label ( new Rect ( 0, 0, 40, 20 ), "File" );
if ( GUI.changed )
{
CheckFileOptions (te );
}
toolbarMenuIndex = EditorGUI.Popup ( new Rect ( 40, 0, 40, 20 ), toolbarMenuIndex, editOptions, "toolbarButton" );
GUI.Label ( new Rect ( 40, 0, 40, 20 ), "Edit" );
if ( GUI.changed )
{
CheckEditOptions ( te );
}
GUI.Box ( new Rect ( 0, 18, position.width, 20 ), "", "toolbar" );
tSize.y = textStyle.CalcHeight ( new GUIContent ( s ), position.width );
tSize.x = position.width;
GUILayout.BeginArea (new Rect(0,18,position.width,20) );
GUILayout.BeginHorizontal ( );
if(fileTabs.Count > 0)
{
for(int i = 0; i < fileTabs.Count; i++)
{
Tab tab = fileTabs[i];
if ( GUILayout.Button ( tab.fileName, "toolbarButton" ) )
{
fileTabs[fileTabIndex].fileText = s;
fileTabIndex = i;
s = tab.fileText;
}
}
}
GUILayout.EndHorizontal ( );
GUILayout.EndArea ( );
scrollPos = GUI.BeginScrollView ( new Rect(0,36,position.width, position.height-36), scrollPos, new Rect(0,0,tSize.x-15,tSize.y+20) );
for ( int i = 0; i < lines; i++ )
{
Vector2 lSize = textStyle.CalcSize ( new GUIContent ( i.ToString ( ) ) );
if(i%2 == 1)
{
GUI.color = Color.gray;
GUI.Box (new Rect(-2, 13 * i+13, position.width+4 + tSize.x, 13 ), "");
}
GUI.color = Color.white;
GUI.Label ( new Rect ( 0, 13 * i+13, lSize.x + 50, 13 ), "" + i );
}
Event ev = Event.current;
//add textarea with transparent text
GUI.contentColor = new Color ( 1f, 1f, 1f, 0f );
Rect bounds = new Rect ( 60, 13, position.width-80, position.height+tSize.y);
GUI.SetNextControlName ( "TextArea" );
s = GUI.TextArea ( bounds, s );
//get the texteditor of the textarea to control selection
CheckKeys ( te, ev );
//set background of all textfield transparent
GUI.backgroundColor = new Color ( 1f, 1f, 1f, 0f );
//backup selection to remake it after process
int backupPos = te.pos;
int backupSelPos = te.selectPos;
//get last position in text
te.MoveTextEnd ( );
int endpos = te.pos;
//draw textfield with color on top of text area
UpdateText ( te, ev, endpos, textStyle, backupPos, backupSelPos );
//Reset color
GUI.color = backupColor;
GUI.contentColor = backupContentColor;
GUI.backgroundColor = backupBackgroundColor;
GUI.EndScrollView ( );
}
private void CheckFileOptions (TextEditor te )
{
FileStream fs;
StreamWriter sw;
string path;
if ( toolbarMenuIndex == -1 )
return;
switch ( toolbarMenuIndex )
{
//New
case 0:
this.path = "";
textStyle = new GUIStyle ( GUI.skin.textArea );
s = "";
redos.Clear ( );
break;
//Open
case 1:
path = EditorUtility.OpenFilePanel ( "Load...", "", "*.*" );
if ( path != "" )
{
this.path = path;
textStyle = new GUIStyle ( GUI.skin.textArea );
bool fileIsOpen = false;
if ( fileTabs.Count > 0 )
{
for ( int i = 0; i < fileTabs.Count; i++ )
{
Tab t = fileTabs [ i ];
if ( t.filePath == path )
{
fileIsOpen = true;
}
}
if ( !fileIsOpen )
{
s = "";
lines = 0;
LoadFile ( path );
}
}
else
{
s="";
lines = 0;
LoadFile (path );
}
}
redos.Clear ( );
break;
//Save
case 2:
fs = new FileStream ( this.path, FileMode.Open );
fs.SetLength ( 0 );
fs.Close ( );
sw = new StreamWriter ( this.path );
sw.Write ( s );
sw.Close ( );
AssetDatabase.Refresh ( );
break;
//Save as
case 3:
path = EditorUtility.OpenFilePanel ( "Save as...", "", "*.*" );
if ( path != "" )
{
this.path = path;
fs = new FileStream ( path, FileMode.Open );
fs.SetLength ( 0 );
fs.Close ( );
sw = new StreamWriter ( path );
sw.Write ( s );
sw.Close ( );
AssetDatabase.Refresh ( );
}
break;
//Close
case 4:
break;
//Close all
case 5:
break;
}
toolbarMenuIndex = -1;
}
private void LoadFile (string path)
{
StreamReader sr = new StreamReader ( path );
string newText = "";
while ( !sr.EndOfStream )
{
string newLine = sr.ReadLine ( );
newText += newLine + "\n";
}
int index = path.LastIndexOf ( "/" );
string file = path.Substring ( index+1);
sr.Close ( );
fileTabs.Add ( new Tab ( file, path, newText ) );
fileTabIndex = fileTabs.Count-1;
s = newText;
tSize.y = textStyle.CalcHeight ( new GUIContent ( s ), position.width );
tSize.x = position.width;
Repaint ( );
}
private void CheckEditOptions (TextEditor te )
{
if ( toolbarMenuIndex == -1 )
return;
switch ( toolbarMenuIndex )
{
//Cut
case 0:
te.Cut();
s = te.content.text;
break;
//Copy
case 1:
te.Copy();
break;
//Paste
case 2:
te.Paste();
s = te.content.text;
break;
}
toolbarMenuIndex = -1;
}
void UpdateText (TextEditor te, Event ev, int endpos, GUIStyle textStyle, int backupPos, int backupSelPos )
{
te.MoveTextStart ( );
lines = 0;
while ( te.pos != endpos )
{
te.SelectToStartOfNextWord ( );
string wordtext = te.SelectedText;
//set word color
GUI.contentColor = CheckSyntax ( wordtext );
Vector2 pixelselpos = textStyle.GetCursorPixelPosition ( te.position, te.content, te.selectPos );
Vector2 pixelpos = textStyle.GetCursorPixelPosition ( te.position, te.content, te.pos );
GUI.TextField ( new Rect ( pixelselpos.x - textStyle.border.left - 2f , pixelselpos.y - textStyle.border.top, pixelpos.x, pixelpos.y ), wordtext);
if(wordtext.Contains("\n"))
lines++;
te.MoveToStartOfNextWord ( );
}
lines++;
//Reposition selection
Vector2 bkpixelselpos = textStyle.GetCursorPixelPosition ( te.position, te.content, backupSelPos );
te.MoveCursorToPosition ( bkpixelselpos );
//Remake selection
Vector2 bkpixelpos = textStyle.GetCursorPixelPosition ( te.position, te.content, backupPos );
te.SelectToPosition ( bkpixelpos );
}
Color CheckSyntax (string syntax )
{
string newSyntax = syntax.TrimEnd ( ' ' );
foreach ( string st in cNamespaces )
{
if ( newSyntax == st !isCommenting)
return Color.cyan;
}
if ( newSyntax.StartsWith ( "//" ) || newSyntax.StartsWith ( "*/" ) )
{
isCommenting = true;
if ( newSyntax.StartsWith ( "*/" ) )
commentAffectsNextLine = true;
return Color.green;
}
if ( newSyntax.StartsWith ( "\"" ) || newSyntax.StartsWith ( "\'" ) )
{
isString = true;
return Color.magenta;
}
if ( newSyntax.StartsWith ( "/*" ) )
{
commentAffectsNextLine = false;
return Color.green;
}
if ( isString newSyntax != "\n" !isCommenting )
return Color.magenta;
if(isCommenting newSyntax != "\n")
return Color.green;
if(isCommenting (newSyntax == "\n" commentAffectsNextLine ))
return Color.green;
if ( newSyntax == "\n" )
{
isCommenting = false;
isString = false;
}
return Color.white;
}
void CheckKeys (TextEditor te, Event ev )
{
if ( GUIUtility.keyboardControl==te.controlID ev.Equals ( Event.KeyboardEvent ( "tab" ) ) )
{
Debug.Log ( "tab pressed" );
GUI.FocusControl ( "TextArea" );
if ( s.Length > te.pos )
{
s = s.Insert ( te.pos, "\t" );
te.pos++;
te.selectPos = te.pos;
}
ev.Use ( );
GUI.FocusControl ( "TextArea" );
}
if ( ( Event.current.type == EventType.KeyUp ) ( Event.current.keyCode == KeyCode.Space ) ( GUI.GetNameOfFocusedControl ( ) == "MyTextArea" ) )
{
Debug.Log ( "space pressed" );
}
if ( ( Event.current.type == EventType.KeyUp ) ( Event.current.keyCode == KeyCode.Return ) ( GUI.GetNameOfFocusedControl ( ) == "MyTextArea" ) )
{
Debug.Log ( "Enter pressed" );
if ( s.Length > te.pos )
{
s = s.Insert ( te.pos, "\t" );
te.pos++;
te.selectPos = te.pos;
}
ev.Use ( );
}
}
}
