parent
be2c4fab03
commit
e7e71ff820
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using System.Diagnostics.Contracts;
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using System.IO.Pipes;
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using Microsoft.VisualBasic;
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using Mindmagma.Curses;
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using Newtonsoft.Json.Linq;
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namespace SCI.CursesWrapper;
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public class Helper {
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/// <summary>
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/// Create a centered NCurses window on the specified screen
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/// </summary>
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/// <param name="screen">Parent screen to attach window to</param>
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/// <param name="width">Width of columns of window</param>
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/// <param name="height">Height of rows of window</param>
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/// <param name="borders">If true, shows default borders around window</param>
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/// <returns>nint - Pointer of new window</returns>
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/// <exception cref="ArgumentOutOfRangeException">Throws exception if window is outside of screen bounds</exception>
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public static nint CreateCenteredWindow (nint screen, int width, int height, bool borders = true) {
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NCurses.GetMaxYX (screen, out int screenHeight, out int screenWidth);
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int originY = (screenHeight / 2) - (height / 2);
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int originX = (screenWidth / 2) - (width / 2);
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if (originX + width > screenWidth) throw new ArgumentOutOfRangeException ("width");
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if (originY + height > screenHeight) throw new ArgumentOutOfRangeException ("height");
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if (originX < 0) throw new ArgumentOutOfRangeException ("originX");
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if (originY < 0) throw new ArgumentOutOfRangeException ("originY");
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nint window = NCurses.NewWindow (height, width, originY, originX);
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if (borders) NCurses.Box (window, (char) 0, (char) 0);
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return window;
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}
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/// <summary>
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/// Prints text horizontally centered to window (on a specific line);
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/// </summary>
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/// <param name="window">Parent window to print into</param>
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/// <param name="text">Text to display</param>
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/// <param name="y">Y posititon of the text</param>
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public static void PrintHCenteredText (nint window, string text, int y = 0) {
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NCurses.GetMaxYX (window, out int _, out int windowWidth);
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var x = windowWidth / 2 - text.Length / 2;
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NCurses.MoveWindowAddString (window, y, x, text);
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}
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}
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public class MessageBox {
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public enum MessageBoxButtons {
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OK,
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YesNo,
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RetryCancel,
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RetryIgnoreCancel
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}
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/// <summary>
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/// Shows a message box with specified text and returns the selected button from zero index
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/// </summary>
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/// <param name="screen">Parent screen to show message box on</param>
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/// <param name="text">Text to show</param>
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/// <param name="buttons">Type of buttons to show</param>
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/// <returns>Button pressed by user, zero indexed</returns>
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public static int Show (nint screen, string text, MessageBoxButtons buttons = MessageBoxButtons.OK) {
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NCurses.GetMaxYX (screen, out int screenHeight, out int screenWidth);
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// Set static box width, if width is larger than screen, reduce to screen size,
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// then calculate the message box and inner pad origin X coords
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var boxWidth = 50;
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if (boxWidth + 3 >= screenWidth) boxWidth = screenWidth - 3;
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int originX = (screenWidth / 2) - (boxWidth / 2);
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var padOriginX = originX + 2; // Add one for the border and for a single character padding
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// Calculate sizes for the inner pad element
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var padWidth = boxWidth - 4; // Add four to the total box width due to the two character padding on both sides
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var totalTextLines = (int) Math.Ceiling ((double) text.Length / padWidth); // Get total amount of lines required to hold all text limited by box width
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var padHeight = totalTextLines;
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if (padHeight + 8 > screenHeight) { // If height required to show all text lines plus padding is larger than screen, reduce size of message box
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padHeight = screenHeight - 8;
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}
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// Now calculate the height and Y origin of the text box and inner pad
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var boxHeight = padHeight + 6; // Add five to the pad height due to the title bar and two character padding top and bottom
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if (boxHeight + 2 > screenHeight) boxHeight = screenHeight - 2;
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int originY = (screenHeight / 2) - (boxHeight / 2);
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var padOriginY = originY + 3; // Add one for the border, one for the title and one for a single character padding
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//if (text.Length > (totalTextRows * textCols)) text = text.Substring (0, (totalTextRows * textCols) - 1) + "$";
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// Create message box and inner Pad
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var msgBoxWindow = Helper.CreateCenteredWindow (screen, boxWidth, boxHeight, true);
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var msgTextPad = NCurses.NewPad (padHeight, padWidth);
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NCurses.Refresh ();
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// Title, currently not in use
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Helper.PrintHCenteredText (msgBoxWindow, "Info", 1);
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NCurses.WindowRefresh (msgBoxWindow);
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NCurses.WindowAddString (msgTextPad, text);
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NCurses.PadRefresh (msgTextPad, 0, 0, padOriginY, padOriginX, padOriginY + padHeight, padOriginX + padWidth);
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return InputHandler (msgBoxWindow, buttons);
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}
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private static List<string> GetStringsFromButtonEnum (MessageBoxButtons buttons) {
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List<string> buttonStrings;
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switch (buttons) {
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case MessageBoxButtons.OK:
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buttonStrings = new List<string> () { "OK" };
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break;
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case MessageBoxButtons.YesNo:
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buttonStrings = new List<string> () { "Yes", "No" };
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break;
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case MessageBoxButtons.RetryCancel:
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buttonStrings = new List<string> () { "Retry", "Cancel" };
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break;
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case MessageBoxButtons.RetryIgnoreCancel:
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buttonStrings = new List<string> () { "Retry", "Ignore", "Cancel" };
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break;
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default:
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throw new Exception ("Unknown button layout for message box");
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}
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return buttonStrings;
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}
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/// <summary>
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/// Draws buttons specified by the buttons type
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/// </summary>
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/// <param name="window">Window to draw buttons on</param>
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/// <param name="buttons">Buttons to display</param>
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private static void DrawButtons (nint window, MessageBoxButtons buttons, int active = 0) {
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NCurses.GetMaxYX (window, out int windowHeight, out int windowWidth);
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var buttonStrings = GetStringsFromButtonEnum (buttons);
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var totalStringLength = buttonStrings.Count - 1;
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foreach (var str in buttonStrings) totalStringLength += str.Length + 2;
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NCurses.WindowMove (window, windowHeight - 2, (windowWidth / 2) - (totalStringLength / 2));
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var index = 0;
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foreach (var str in buttonStrings) {
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if (index == active) {
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NCurses.WindowAddString (window, $"[{str}]");
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} else {
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NCurses.WindowAddString (window, $" {str} ");
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}
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NCurses.WindowAddChar (window, ' ');
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index ++;
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}
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NCurses.WindowRefresh (window);
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}
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/// <summary>
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/// Handle the user selection of the buttons
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/// </summary>
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/// <param name="window">Window to draw buttons on</param>
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/// <param name="buttons">Buttons to display</param>
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/// <returns>User choice of button, zero indexed</returns>
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private static int InputHandler (nint window, MessageBoxButtons buttons) {
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DrawButtons (window, buttons);
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int index = 0;
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int maxIndex = GetStringsFromButtonEnum (buttons).Count - 1;
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int chr = 0;
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while ((chr = NCurses.GetChar ()) != 10) {
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if (chr == 260) { // Left
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index ++;
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if (index > maxIndex) index = 0;
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DrawButtons (window, buttons, index);
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} else if (chr == 261) { // Right
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index --;
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if (index < 0) index = maxIndex;
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DrawButtons (window, buttons, index);
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}
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}
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return index;
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}
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}
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@ -1,114 +0,0 @@
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using Fahrplan;
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using Mindmagma.Curses;
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using Newtonsoft.Json;
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using SCI.CursesWrapper;
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namespace ANSI_Fahrplan;
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public class Playground {
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public static void Run (string [] args) {
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Console.WriteLine ("Program initializing Curses...");
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// var jsonString = File.ReadAllText ("schedule.json");
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// var schedule = JsonConvert.DeserializeObject<Fahrplan.Root> (jsonString);
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// foreach (var day in schedule.schedule.conference.days) {
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// Console.WriteLine ($"Day: {day.date}, {day.index}");
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// foreach (var room in day.rooms) {
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// Console.WriteLine ($" \\__ Room: {room.Key}");
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// foreach (var ev in room.Value) {
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// if (ev is null) continue;
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// Console.WriteLine ($" \\__ Event: {ev.title}");
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// }
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// }
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// }
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var screen = NCurses.InitScreen ();
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NCurses.NoEcho ();
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NCurses.CBreak ();
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NCurses.SetCursor (0);
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var hasColors = NCurses.HasColors ();
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if (hasColors) {
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NCurses.StartColor ();
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NCurses.InitPair (1, CursesColor.WHITE, CursesColor.BLUE);
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//ColorPairs.InitColors ();
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}
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var win1 = NCurses.NewWindow (10, 20, 10, 10);
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NCurses.Box (win1, (char) 0, (char) 0);
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NCurses.WindowBackground (win1, ColorSchemes.Default ());
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NCurses.MoveWindowAddString (win1, 1, 1, "Hello world!");
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// Draw windows
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NCurses.Refresh ();
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NCurses.WindowRefresh (win1);
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NCurses.GetChar ();
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NCurses.EndWin ();
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/*var window = CreateWindowCentered (screen, 40, 12);
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NCurses.WindowBackground (window, NCurses.ColorPair (1));
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NCurses.WindowAttributeOn (window, NCurses.ColorPair (1));*/
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//NCurses.GetMaxYX (screen, out int screenHeight, out int screenWidth);
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//NCurses.MoveAddString (screenHeight - 1, 0, "NCurses Example");
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/*var menuItems = new List<TopMenu.MenuItem> () {
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new TopMenu.MenuItem () { Label = "Test 1" },
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new TopMenu.MenuItem () { Label = "Test 2" },
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new TopMenu.MenuItem () { Label = "Test 3" },
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};
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var menu = new TopMenu (screen) { MenuItems = menuItems };
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menu.Render ();*/
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var msgBoxResponse = MessageBox.Show (screen, "Hello World, this is a message box text, yippee!! Let's make this text even longer, wooowiieeeee!", MessageBox.MessageBoxButtons.YesNo);
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NCurses.AddString ($"Input was {msgBoxResponse}");
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NCurses.Refresh ();
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var inputTask = Task.Run (() => InputRoutine ());
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while (inputTask.Status == TaskStatus.WaitingToRun);
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while (inputTask.Status == TaskStatus.Running) {
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NCurses.Refresh ();
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//NCurses.WindowRefresh (window);
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NCurses.Nap (1000 / 30);
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}
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//NCurses.AttributeOff (NCurses.ColorPair (1));
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NCurses.EndWin ();
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}
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static void InputRoutine () {
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int chr = 0;
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while (chr != CursesKey.ESC) {
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chr = NCurses.GetChar ();
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/*if (chr == 265) {
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menu.Render (0);
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} else if (chr == 266) {
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menu.Render (1);
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} else if (chr == 267) {
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menu.Render (2);
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} else if (chr > 0) {
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menu.Render ();
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NCurses.MoveAddString (2, 10, $"You pressed the key {chr} ");
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}*/
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if (chr > 0) NCurses.MoveAddString (2, 10, $"You pressed the key {chr} ");
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}
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/*NCurses.WindowBorder (window, ' ', ' ', ' ',' ',' ',' ',' ',' ');
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NCurses.WindowRefresh (window);
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NCurses.DeleteWindow (window);*/
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NCurses.MoveAddString (10, 10, "Input routine exited");
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NCurses.Refresh ();
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return;
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}
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}
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@ -1,27 +0,0 @@
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using Mindmagma.Curses;
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namespace ANSI_Fahrplan.Screens;
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public abstract class Screen {
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private nint _rootWindow;
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public nint RootWindow { get { return _rootWindow; }}
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public Screen (nint rootWindow) {
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_rootWindow = rootWindow;
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PrepareWindow ();
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}
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private void PrepareWindow () {
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NCurses.NoEcho ();
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NCurses.CBreak ();
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NCurses.SetCursor (0);
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//NCurses.ClearWindow (RootWindow);
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NCurses.WindowMove (RootWindow, 0, 0);
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}
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public abstract void Show ();
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public abstract void Hide ();
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}
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@ -1,13 +0,0 @@
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- [x] Create JSON parser for Fahrplan
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- [] Add networking functions to pull up-to-date Fahrplan from web
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- [] User interface
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- [] Add landing page
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- [] Add schedule overview by
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- [] Day (List view, go left and right to change days)
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- [] Room ()
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- [] Category
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- [] Speakers
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- [] Today/Currently running
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- [] Timeline?
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- [] Add search interface
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- [] Add about page
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@ -0,0 +1,64 @@
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using Mindmagma.Curses;
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namespace SCI.CursesWrapper.UiElements;
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public class FooterWindow : Window {
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/// <summary>
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/// Class constructor
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/// </summary>
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/// <param name="screen">Root NCurses screen ID</param>
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/// <param name="defaultTitle">Initial title to show</param>
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public FooterWindow (nint screen, string defaultTitle = "") :
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base (0, CursesWrapper.GetHeight (screen) - 1, CursesWrapper.GetWidth (screen), 1)
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{
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var colorSchemeNormal = ColorSchemes.TopMenuNormal ();
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BackgroundColorId = colorSchemeNormal;
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NCurses.WindowAttributeOn (WindowId, colorSchemeNormal);
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DrawFooter (defaultTitle);
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}
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/// <summary>
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/// Draw the footer window and insert the specified text
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/// </summary>
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/// <param name="title"></param>
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/// <param name="left"></param>
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/// <param name="right"></param>
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public void DrawFooter (string title, string left = "", string right = "") {
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Clear ();
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// TODO: Describe the last-character-in-window bug(fix) here
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var pad =
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(WindowSize.Width / 2) -
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(title.Length / 2)
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- 1;
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var finalString =
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" " + left.PadRight (pad) +
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title +
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(string.IsNullOrEmpty (right)?
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"" :
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right.PadLeft (pad)
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);
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// String too long, leave out left and right text
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if (finalString.Length > WindowSize.Width - 1) {
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finalString = " ".PadLeft (pad) + title;
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}
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// String still too long, leave out the padding and left align title
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if (finalString.Length > WindowSize.Width - 1) {
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finalString = " " + title;
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}
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// String still too long, cut to size
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if (finalString.Length > WindowSize.Width - 1) {
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finalString = title.Substring (0, WindowSize.Width - 1);
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}
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try {
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NCurses.MoveWindowAddString (this, 0, 0, finalString);
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Draw ();
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} catch (Exception) {};
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}
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}
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@ -1,97 +0,0 @@
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using Mindmagma.Curses;
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namespace SCI.CursesWrapper.UiElements;
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public class InputBox {
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public delegate void InputCompleted (string input);
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public void RequestInput (nint screen, InputHandler inputHandler, InputCompleted callback, string question) {
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const int boxPaddingTop = 1;
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const int boxPaddingSides = 2;
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const int boxPaddingBottom = 2;
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const int boxMarginTopBottom = 1;
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const int boxMarginSides = 2;
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NCurses.GetMaxYX (screen, out int height, out int width);
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// Contents inside the question box may not be larger than these
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int maxInnerWidth = width - (boxPaddingSides * 2) - (boxMarginSides * 2);
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int maxInnerHeight = height - boxPaddingTop - boxPaddingBottom - boxMarginTopBottom;
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using var strReader = new StringReader (question);
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string? inStr;
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int innerWidth = 1;
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int innerHeight = 1;
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while ((inStr = strReader.ReadLine ()) is not null) {
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if (inStr.Length > innerWidth) innerWidth = inStr.Length;
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if (innerWidth > maxInnerWidth) {
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innerWidth = maxInnerWidth;
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innerHeight += (int) Math.Ceiling (inStr.Length / (double) maxInnerWidth);
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} else {
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innerHeight ++;
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}
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}
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int boxWidth = innerWidth + (boxPaddingSides * 2);
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int boxHeight = innerHeight + boxPaddingTop + boxPaddingBottom;
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int boxAnchorX = (width / 2) - (boxWidth / 2);
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int boxAnchorY = (height / 2) - (boxHeight / 2);
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var boxWin = NCurses.SubWindow (screen, boxHeight, boxWidth, boxAnchorY, boxAnchorX);
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NCurses.Box (boxWin, (char) 0, (char) 0);
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NCurses.Refresh ();
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NCurses.WindowRefresh (boxWin);
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int questionTextWinAnchorX = boxAnchorX + boxPaddingSides;
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int questionTextWinAnchorY = boxAnchorY + boxPaddingTop;
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var questionTextWin = NCurses.SubWindow (boxWin, innerHeight, innerWidth, questionTextWinAnchorY, questionTextWinAnchorX);
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NCurses.WindowAddString (questionTextWin, question.Trim ());
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NCurses.WindowRefresh (questionTextWin);
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int inputFieldWinX = questionTextWinAnchorX;
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int inputFieldWinY = boxAnchorY + boxHeight - boxMarginTopBottom - 1;
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var inputFieldWin = NCurses.SubWindow (boxWin, 1, innerWidth, inputFieldWinY, inputFieldWinX);
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NCurses.WindowBackground (inputFieldWin, ColorSchemes.TextInputField ());
|
||||
NCurses.WindowAttributeSet (inputFieldWin, ColorSchemes.TextInputField ());
|
||||
|
||||
NCurses.WindowRefresh (inputFieldWin);
|
||||
|
||||
NCurses.MoveWindow (inputFieldWin, inputFieldWinY, inputFieldWinX);
|
||||
NCurses.SetCursor (1);
|
||||
NCurses.Echo ();
|
||||
|
||||
var userInput = "";
|
||||
InputHandler.KeypressEventHandler handlerFunction = (object sender, NCursesKeyPressEventArgs e) => {
|
||||
if (e.KeyCode == '\n' || e.KeyCode == CursesKey.ENTER) {
|
||||
callback (userInput);
|
||||
}
|
||||
|
||||
if (e.KeyCode == '\n' || e.KeyCode == CursesKey.ENTER || e.KeyCode == CursesKey.ESC) {
|
||||
NCurses.SetCursor (0);
|
||||
NCurses.NoEcho ();
|
||||
|
||||
//inputHandler.DisableRawEventHandler (screen);
|
||||
|
||||
NCurses.MoveWindow (screen, 0, 0);
|
||||
NCurses.DeleteWindow (inputFieldWin);
|
||||
NCurses.DeleteWindow (questionTextWin);
|
||||
NCurses.DeleteWindow (boxWin);
|
||||
NCurses.Refresh ();
|
||||
} else if (e.KeyCode == CursesKey.BACKSPACE) {
|
||||
userInput = userInput.Substring (0, userInput.Length - 2);
|
||||
} else if (char.IsAscii ((char) e.KeyCode)) {
|
||||
userInput += (char) e.KeyCode;
|
||||
}
|
||||
|
||||
NCurses.MoveWindow (inputFieldWin, inputFieldWinY, inputFieldWinX);
|
||||
};
|
||||
|
||||
//inputHandler.EnableRawEventHandler (handlerFunction, inputFieldWin);
|
||||
}
|
||||
}
|
||||
@ -1,12 +0,0 @@
|
||||
namespace ANSI_Fahrplan.UiElements;
|
||||
|
||||
public abstract class UiElement {
|
||||
private nint _screen;
|
||||
public nint Screen { get { return _screen; }}
|
||||
|
||||
protected nint contentWindow { get; set; }
|
||||
|
||||
public UiElement (nint screen) {
|
||||
_screen = screen;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue