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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ShiftOS.Engine;
using ShiftOS.Frontend.GraphicsSubsystem;
using static ShiftOS.Engine.SkinEngine;
namespace ShiftOS.Frontend.Apps
{
[FileHandler("Shell script", ".trm", "fileicontrm")]
[Launcher("{TITLE_TERMINAL}", false, null, "{AL_UTILITIES}")]
[WinOpen("{WO_TERMINAL}")]
[DefaultTitle("{TITLE_TERMINAL}")]
[DefaultIcon("iconTerminal")]
public class Terminal : GUI.Control, IShiftOSWindow
{
private TerminalControl _terminal = null;
public Terminal()
{
Width = 493;
Height = 295;
}
public void OnLoad()
{
_terminal = new Apps.TerminalControl();
_terminal.Dock = GUI.DockStyle.Fill;
AddControl(_terminal);
_terminal.Layout();
AppearanceManager.ConsoleOut = _terminal;
AppearanceManager.StartConsoleOut();
}
protected override void OnLayout()
{
if (ContainsFocusedControl || IsFocusedControl)
AppearanceManager.ConsoleOut = _terminal;
}
public void OnSkinLoad()
{
}
public bool OnUnload()
{
return true;
}
public void OnUpgrade()
{
}
}
public class TerminalControl : GUI.TextInput, ITerminalWidget
{
public string[] Lines
{
get
{
return Text.Split(new[] { "\n" }, StringSplitOptions.None);
}
}
public void Clear()
{
Text = "";
Index = 0;
Invalidate();
}
public void SelectBottom()
{
Index = Text.Length - 1;
RecalculateLayout();
InvalidateTopLevel();
}
public void Write(string text)
{
Engine.Desktop.InvokeOnWorkerThread(() =>
{
SelectBottom();
Text = Text.Insert(Index, text);
Index += text.Length;
RecalculateLayout();
InvalidateTopLevel();
});
}
public void WriteLine(string text)
{
Write(text + Environment.NewLine);
}
public int GetCurrentLine()
{
int line = 0;
for(int i = 0; i < Text.Length; i++)
{
if(Text[i]=='\n')
{
line++;
continue;
}
if (i == Index)
return line;
}
return 0;
}
float _vertOffset = 0.0f;
protected void RecalculateLayout()
{
if(!string.IsNullOrEmpty(Text))
using (var gfx = Graphics.FromImage(new Bitmap(1, 1)))
{
var cursorpos = GetPointAtIndex(gfx);
var caretSize = gfx.SmartMeasureString(Text.ToString(), LoadedSkin.TerminalFont, Width - 4);
float initial = ((caretSize.Height) - cursorpos.Y) - _vertOffset;
if (initial < 0)
{
float difference = initial - Height;
_vertOffset += initial + difference;
}
if (initial > Height)
{
float difference = initial - Height;
_vertOffset -= initial - difference;
}
}
}
/// <summary>
/// Gets the X and Y coordinates (in pixels) of the caret.
/// </summary>
/// <param name="gfx">A <see cref="System.Drawing.Graphics"/> object used for font measurements</param>
/// <returns>An absolute fucking mess. Seriously, can someone fix this method so it uhh WORKS PROPERLY?</returns>
public PointF GetPointAtIndex(Graphics gfx)
{
float vertMeasure = 2.0f;
float horizMeasure = 2.0f;
int lineindexes = 0;
for (int l = 0; l <= GetCurrentLine(); l++)
{
var measure = gfx.SmartMeasureString(Lines[l], LoadedSkin.TerminalFont, Width - 4);
vertMeasure += measure.Width;
if(l == GetCurrentLine())
{
string _linetext = Text.Substring(lineindexes, Index - lineindexes);
var lMeasure = gfx.SmartMeasureString(_linetext, LoadedSkin.TerminalFont);
horizMeasure = lMeasure.Width;
if (horizMeasure > Width - 4)
horizMeasure -= (Width-4);
}
else
{
lineindexes += Lines[l].Length;
}
}
return new PointF(horizMeasure, vertMeasure);
}
protected override void OnKeyEvent(KeyEvent e)
{
if (e.Key == Microsoft.Xna.Framework.Input.Keys.Enter)
{
Text = Text.Insert(Index, "\r\n");
Index++;
}
base.OnKeyEvent(e);
RecalculateLayout();
InvalidateTopLevel();
}
protected override void OnPaint(Graphics gfx)
{
RecalculateLayout();
gfx.Clear(LoadedSkin.TerminalBackColorCC.ToColor());
if (!string.IsNullOrEmpty(Text))
{
//Draw the caret.
var caretPos = GetPointAtIndex(gfx);
var caretSize = gfx.SmartMeasureString(Text[Index - 1].ToString(), LoadedSkin.TerminalFont);
if (IsFocusedControl)
{
gfx.FillRectangle(new SolidBrush(LoadedSkin.TerminalForeColorCC.ToColor()), new RectangleF(new PointF(caretPos.X, caretPos.Y - _vertOffset), new SizeF(2, caretSize.Height)));
}//Draw the text
var textMeasure = gfx.MeasureString(Text, LoadedSkin.TerminalFont, Width - 4);
gfx.DrawString(Text, LoadedSkin.TerminalFont, new SolidBrush(LoadedSkin.TerminalForeColorCC.ToColor()), 2, 2 - _vertOffset);
}
}
}
public static class ConsoleColorExtensions
{
public static Color ToColor(this ConsoleColor cc)
{
switch (cc)
{
case ConsoleColor.Black:
return Color.Black;
case ConsoleColor.Blue:
return Color.Blue;
case ConsoleColor.Cyan:
return Color.Cyan;
case ConsoleColor.DarkBlue:
return Color.DarkBlue;
case ConsoleColor.DarkCyan:
return Color.DarkCyan;
case ConsoleColor.DarkGray:
return Color.DarkGray;
case ConsoleColor.DarkGreen:
return Color.DarkGreen;
case ConsoleColor.DarkMagenta:
return Color.DarkMagenta;
case ConsoleColor.DarkRed:
return Color.DarkRed;
case ConsoleColor.DarkYellow:
return Color.Orange;
case ConsoleColor.Gray:
return Color.Gray;
case ConsoleColor.Green:
return Color.Green;
case ConsoleColor.Magenta:
return Color.Magenta;
case ConsoleColor.Red:
return Color.Red;
case ConsoleColor.White:
return Color.White;
case ConsoleColor.Yellow:
return Color.Yellow;
}
return Color.Empty;
}
}
public static class GraphicsExtensions
{
public static SizeF SmartMeasureString(this Graphics gfx, string s, Font font, int width)
{
if (string.IsNullOrEmpty(s))
s = " ";
var textformat = new StringFormat(StringFormat.GenericTypographic);
textformat.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
textformat.Trimming = StringTrimming.None;
return gfx.MeasureString(s, font, width, textformat);
}
public static SizeF SmartMeasureString(this Graphics gfx, string s, Font font)
{
if (string.IsNullOrEmpty(s))
s = " ";
var textformat = new StringFormat(StringFormat.GenericTypographic);
textformat.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
textformat.Trimming = StringTrimming.None;
return gfx.MeasureString(s, font, int.MaxValue, textformat);
}
}
}
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