BitmapSaverWindow.DrawFileList C# (CSharp) Method

    private void DrawFileList()
    {
        Rect  box = new Rect( 5, 52, EditorRect.width-10, EditorRect.height - 105 );

        DrawRect( new Rect( 0, 50, EditorRect.width, 15), new Color(.6f,.6f,.6f));

        GUI.skin.label.fontSize = 8;
        EditorStyles.popup.fixedHeight= 20;
        EditorStyles.miniButtonLeft.fontSize = 8;
        EditorStyles.miniButtonMid.fontSize = 8;
        EditorStyles.miniButtonRight.fontSize = 8;

        GUI.Label(new Rect( 5, 50, 100, 15) , "Convert File List" );
        GUI.Label(new Rect( 460, 70, 70, 25) , "Export\nExtension" );
        GUI.BeginGroup( box );

            GUI.Box( new Rect(  5, 45, box.width-10, box.height - 50) , "");
            GUI.Box( new Rect( 10, 60, box.width-20, box.height - 74) , "");

            GUI.skin.label.fontSize = 9;
            GUI.skin.label.alignment = TextAnchor.MiddleCenter;
            GUI.Label(new Rect(15, 40, sideWidth-15, 25 ), "Resource");
            GUI.Label(new Rect(sideWidth+15, 40, box.width-20-sideWidth, 25 ), "Convert To");
            GUI.skin.label.alignment = TextAnchor.MiddleLeft;
            GUI.skin.label.fontSize = 8;

            GUI.skin.button.fontSize = 7;
                if(GUI.Button( new Rect(  5, 20, 80, 20 ), new GUIContent( "TextureImporter\nSettings","General settings for the unity TextureImporter"))) TextImportSetup();
            GUI.skin.button.fontSize = 8;

            if(GUI.Button( new Rect( 100, 20, 80, 20), new GUIContent("Add" , "Add a file to the converter list"), EditorStyles.miniButtonLeft)) AddFile();
            if( draw )GUI.enabled = ( selectedIndex != -1 ) ? true : false;
                if(GUI.Button( new Rect( 180, 20, 80, 20),  new GUIContent("Delete", "Remove selected file from the converter list"),  EditorStyles.miniButtonMid))  DeleteFile();
            if( draw )GUI.enabled = ( fLength > 0 ) ? true : false;
                if(GUI.Button( new Rect( 260, 20, 80, 20), new GUIContent( "Clear List", "Clear the complete converter list"), EditorStyles.miniButtonRight))	DeleteAll();
            if( draw )GUI.enabled = true;

        fTemp = fType;
        fType = EditorGUI.Popup( new Rect( 500, 20, 60, 25 ), fType, fTypes);

        GUI.Button( new Rect(box.width - 65, 20, 60, 25), new GUIContent("" , "Select a Extension for the export files"), GUIStyle.none);
        GUI.EndGroup();

        if( fLength > 0 ){

            scrollPos = GUI.BeginScrollView( new Rect( 16, 113, box.width-22, box.height - 76), scrollPos, new Rect( 0, 0, box.width-42 , (22 * fLength)));

                GUI.skin.label.alignment = TextAnchor.MiddleLeft;

                Handles.color = new Color( .6f, .6f, .6f, .6f);
                        for( int j = 0; j < fLength; j++  ) Handles.DrawLine( new Vector3(0 , Mathf.RoundToInt(-2+j*22)+22, 0) , new Vector3( box.width , Mathf.RoundToInt(-2+j*22)+22 , 0));
                Handles.color  = Color.white;

                for( int i = 0; i < fLength; i++ )
                {
                    if( fList[i] != null ){
                        GUI.color = (selectedIndex == i) ? new Color( 1, .5f, 0, .3f) : new Color( 1, 1, 1, .5f);

                        if( GUI.Button(new Rect( -10 , -2+i*22, box.width-5, 21), "", ListStyle( i ))){;
                            if(selectedIndex == i){
                                selectedIndex = -1;
                            }else if(selectedIndex != i) selectedIndex = i;
                        }
                        GUI.color = Color.white;

                        GUI.Label( new Rect( 10 , 2 +i*22, sideWidth-22, 20), fList[i], GUIStyle.none );
                        GUI.Label( new Rect( sideWidth, 2+i*22, EditorRect.width-sideWidth+10, 20),  Path.GetFileNameWithoutExtension( fList[i] ) + "."+ fTypes[fType], GUIStyle.none);
                    }
                }
            GUI.EndScrollView();
        }

        GUIDraw.DrawLine(new Vector2( sideWidth+box.x, 45+box.y ), new Vector2( sideWidth+box.x, box.height+box.y-15 ), Color.grey);
    }