mirror of
https://github.com/Ellpeck/MLEM.git
synced 2024-05-28 19:13:38 +02:00
173 lines
8.4 KiB
C#
173 lines
8.4 KiB
C#
using System;
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using System.Linq;
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using System.Reflection;
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Input;
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using MLEM.Input;
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namespace MLEM.Misc {
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public abstract class TextInputWrapper {
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private static TextInputWrapper current;
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public static TextInputWrapper Current {
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get {
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if (current == null)
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throw new InvalidOperationException("The TextInputWrapper was not initialized yet. Please do so before running your game like so:\n" +
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"DesktopGL: TextInputWrapper.Current = new TextInputWrapper.DesktopGl<TextInputEventArgs>((w, c) => w.TextInput += c);\n" +
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"Mobile and Consoles: TextInputWrapper.Current = new TextInputWrapper.Mobile();\n" +
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"Other Systems: TextInputWrapper.Current = new TextInputWrapper.Primitive();\n" +
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"Note that the primitive wrapper needs to have its Update() method called.");
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return current;
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}
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set => current = value;
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}
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public abstract bool RequiresOnScreenKeyboard();
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public abstract void AddListener(GameWindow window, TextInputCallback callback);
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public delegate void TextInputCallback(object sender, Keys key, char character);
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public class DesktopGl<T> : TextInputWrapper where T : EventArgs {
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private PropertyInfo key;
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private PropertyInfo character;
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private readonly Action<GameWindow, EventHandler<T>> addListener;
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public DesktopGl(Action<GameWindow, EventHandler<T>> addListener) {
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this.addListener = addListener;
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}
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public override bool RequiresOnScreenKeyboard() {
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return false;
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}
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public override void AddListener(GameWindow window, TextInputCallback callback) {
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this.addListener(window, (sender, args) => {
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if (this.key == null)
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this.key = args.GetType().GetProperty("Key");
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if (this.character == null)
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this.character = args.GetType().GetProperty("Character");
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callback.Invoke(sender, (Keys) this.key.GetValue(args), (char) this.character.GetValue(args));
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});
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}
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}
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public class Mobile : TextInputWrapper {
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public override bool RequiresOnScreenKeyboard() {
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return true;
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}
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public override void AddListener(GameWindow window, TextInputCallback callback) {
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}
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}
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public class Primitive : TextInputWrapper {
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private TextInputCallback callback;
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public void Update(InputHandler handler) {
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var pressed = handler.KeyboardState.GetPressedKeys().Except(handler.LastKeyboardState.GetPressedKeys());
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var shift = handler.IsModifierKeyDown(ModifierKey.Shift);
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foreach (var key in pressed) {
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var c = GetChar(key, shift);
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if (c.HasValue)
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this.callback?.Invoke(this, key, c.Value);
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}
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}
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public override bool RequiresOnScreenKeyboard() {
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return false;
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}
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public override void AddListener(GameWindow window, TextInputCallback callback) {
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this.callback += callback;
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}
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private static char? GetChar(Keys key, bool shift) {
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if (key == Keys.A) return shift ? 'A' : 'a';
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if (key == Keys.B) return shift ? 'B' : 'b';
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if (key == Keys.C) return shift ? 'C' : 'c';
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if (key == Keys.D) return shift ? 'D' : 'd';
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if (key == Keys.E) return shift ? 'E' : 'e';
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if (key == Keys.F) return shift ? 'F' : 'f';
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if (key == Keys.G) return shift ? 'G' : 'g';
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if (key == Keys.H) return shift ? 'H' : 'h';
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if (key == Keys.I) return shift ? 'I' : 'i';
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if (key == Keys.J) return shift ? 'J' : 'j';
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if (key == Keys.K) return shift ? 'K' : 'k';
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if (key == Keys.L) return shift ? 'L' : 'l';
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if (key == Keys.M) return shift ? 'M' : 'm';
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if (key == Keys.N) return shift ? 'N' : 'n';
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if (key == Keys.O) return shift ? 'O' : 'o';
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if (key == Keys.P) return shift ? 'P' : 'p';
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if (key == Keys.Q) return shift ? 'Q' : 'q';
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if (key == Keys.R) return shift ? 'R' : 'r';
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if (key == Keys.S) return shift ? 'S' : 's';
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if (key == Keys.T) return shift ? 'T' : 't';
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if (key == Keys.U) return shift ? 'U' : 'u';
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if (key == Keys.V) return shift ? 'V' : 'v';
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if (key == Keys.W) return shift ? 'W' : 'w';
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if (key == Keys.X) return shift ? 'X' : 'x';
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if (key == Keys.Y) return shift ? 'Y' : 'y';
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if (key == Keys.Z) return shift ? 'Z' : 'z';
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if (key == Keys.D0 && !shift || key == Keys.NumPad0) return '0';
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if (key == Keys.D1 && !shift || key == Keys.NumPad1) return '1';
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if (key == Keys.D2 && !shift || key == Keys.NumPad2) return '2';
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if (key == Keys.D3 && !shift || key == Keys.NumPad3) return '3';
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if (key == Keys.D4 && !shift || key == Keys.NumPad4) return '4';
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if (key == Keys.D5 && !shift || key == Keys.NumPad5) return '5';
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if (key == Keys.D6 && !shift || key == Keys.NumPad6) return '6';
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if (key == Keys.D7 && !shift || key == Keys.NumPad7) return '7';
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if (key == Keys.D8 && !shift || key == Keys.NumPad8) return '8';
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if (key == Keys.D9 && !shift || key == Keys.NumPad9) return '9';
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if (key == Keys.D0 && shift) return ')';
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if (key == Keys.D1 && shift) return '!';
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if (key == Keys.D2 && shift) return '@';
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if (key == Keys.D3 && shift) return '#';
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if (key == Keys.D4 && shift) return '$';
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if (key == Keys.D5 && shift) return '%';
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if (key == Keys.D6 && shift) return '^';
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if (key == Keys.D7 && shift) return '&';
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if (key == Keys.D8 && shift) return '*';
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if (key == Keys.D9 && shift) return '(';
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if (key == Keys.Space) return ' ';
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if (key == Keys.Tab) return '\t';
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if (key == Keys.Add) return '+';
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if (key == Keys.Decimal) return '.';
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if (key == Keys.Divide) return '/';
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if (key == Keys.Multiply) return '*';
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if (key == Keys.OemBackslash) return '\\';
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if (key == Keys.OemComma && !shift) return ',';
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if (key == Keys.OemComma && shift) return '<';
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if (key == Keys.OemOpenBrackets && !shift) return '[';
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if (key == Keys.OemOpenBrackets && shift) return '{';
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if (key == Keys.OemCloseBrackets && !shift) return ']';
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if (key == Keys.OemCloseBrackets && shift) return '}';
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if (key == Keys.OemPeriod && !shift) return '.';
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if (key == Keys.OemPeriod && shift) return '>';
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if (key == Keys.OemPipe && !shift) return '\\';
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if (key == Keys.OemPipe && shift) return '|';
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if (key == Keys.OemPlus && !shift) return '=';
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if (key == Keys.OemPlus && shift) return '+';
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if (key == Keys.OemMinus && !shift) return '-';
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if (key == Keys.OemMinus && shift) return '_';
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if (key == Keys.OemQuestion && !shift) return '/';
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if (key == Keys.OemQuestion && shift) return '?';
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if (key == Keys.OemQuotes && !shift) return '\'';
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if (key == Keys.OemQuotes && shift) return '"';
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if (key == Keys.OemSemicolon && !shift) return ';';
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if (key == Keys.OemSemicolon && shift) return ':';
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if (key == Keys.OemTilde && !shift) return '`';
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if (key == Keys.OemTilde && shift) return '~';
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if (key == Keys.Subtract) return '-';
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return null;
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}
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}
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}
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} |