using System;
using System.Drawing;
using CC_Functions.Misc;
namespace CC_Functions.Commandline.TUI
{
///
/// Provides differential drawing of a char[,] Do not use in combination with System.Console
///
public static class DiffDraw
{
private static Pixel[,] _last = new Pixel[0, 0];
private static Pixel[,] Screen { get; set; } = new Pixel[0, 0];
///
/// The regions width
///
public static int Width => Screen.GetLength(1);
///
/// The regions height
///
public static int Height => Screen.GetLength(0);
///
/// Draws to the console
///
/// Whether to use color
/// Whether to redraw the entire screen (should be done from time to time to prevent corruption)
public static void Draw(bool color, bool full = false)
{
Console.CursorTop = 0;
Console.CursorLeft = 0;
ConsoleColor fCol = Console.ForegroundColor;
ConsoleColor bCol = Console.BackgroundColor;
if (full) Console.Clear();
int width = Width;
int height = Height;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Pixel tmp1 = Screen[y, x];
if (!full && tmp1 == _last[y, x]) continue;
if (!ReferenceEquals(tmp1, null) && color)
{
if (Console.ForegroundColor != tmp1.ForeColor)
Console.ForegroundColor = tmp1.ForeColor;
if (Console.BackgroundColor != tmp1.BackColor)
Console.BackgroundColor = tmp1.BackColor;
}
Console.CursorLeft = x;
Console.Write(tmp1 ?? Pixel.Empty);
}
Console.WriteLine();
Console.CursorLeft = 0;
}
Console.ForegroundColor = fCol;
Console.BackgroundColor = bCol;
_last = Screen;
}
///
/// Gets the char at a location
///
/// The location
/// The char
public static char Get(Point p) => Get(p.X, p.Y);
///
/// Gets the char at a location
///
/// The locations X coordinate
/// The locations Y coordinate
/// The char
public static char Get(int x, int y) => Screen[y, x].Content;
///
/// Gets the foreground color at a location
///
/// The location
/// The color
public static ConsoleColor GetForeColor(Point p) => GetForeColor(p.X, p.Y);
///
/// Gets the foreground color at a location
///
/// The locations X coordinate
/// The locations Y coordinate
/// The color
public static ConsoleColor GetForeColor(int x, int y) => Screen[y, x].ForeColor;
///
/// Gets the background color at a location
///
/// The location
/// The color
public static ConsoleColor GetBackColor(Point p) => GetBackColor(p.X, p.Y);
///
/// Gets the background color at a location
///
/// The locations X coordinate
/// The locations Y coordinate
/// The color
public static ConsoleColor GetBackColor(int x, int y) => Screen[y, x].BackColor;
///
/// Sets a pixel at a point
///
/// The point to place at
/// The pixel to place
public static void Set(Point p, Pixel c) => Set(p.X, p.Y, c);
///
/// Sets a pixel at a location
///
/// The locations X coordinate
/// The locations Y coordinate
/// The pixel to place
public static void Set(int x, int y, Pixel c) => Screen[y, x] = c;
///
/// Clears the screen
///
public static void Clear() => Clear(Width, Height);
///
/// Resizes and clears the screen
///
/// The new width
/// The new height
public static void Clear(int width, int height)
{
Screen = new Pixel[height, width];
_last = _last.Resize(height, width);
}
///
/// Replaces the screen state
///
/// The new state
public static void Clear(Pixel[,] content)
{
Screen = content;
_last = _last.Resize(Height, Width);
}
}
}