82 lines
3.3 KiB
C#
82 lines
3.3 KiB
C#
using System.Threading.Tasks;
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using Elwig.Helpers;
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using Elwig.Windows;
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using System.Diagnostics;
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using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Windows;
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using System.Text.RegularExpressions;
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using System.Linq;
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namespace Elwig.Documents {
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public static class Pdf {
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private static readonly string PdfToPrinter = App.ExePath + "PDFtoPrinter.exe";
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private static readonly string WinziPrint = App.ExePath + "WinziPrint.exe";
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private static Process? WinziPrintProc;
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public static bool IsReady => WinziPrintProc != null;
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public static async Task Init(Action evtHandler) {
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var p = new Process() { StartInfo = new() {
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FileName = WinziPrint,
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Arguments = $"-p -e utf-8 -d '{App.TempPath}' -",
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CreateNoWindow = true,
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UseShellExecute = false,
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RedirectStandardInput = true,
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RedirectStandardOutput = true
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} };
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p.Start();
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WinziPrintProc = p;
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evtHandler();
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}
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public static async Task<IEnumerable<int>> Convert(string htmlPath, string pdfPath, IProgress<double>? progress = null) {
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return await Convert(new string[] { htmlPath }, pdfPath, progress);
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}
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public static async Task<IEnumerable<int>> Convert(IEnumerable<string> htmlPath, string pdfPath, IProgress<double>? progress = null) {
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if (WinziPrintProc == null) throw new InvalidOperationException("The WinziPrint process has not been initialized yet");
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progress?.Report(0.0);
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await WinziPrintProc.StandardInput.WriteLineAsync($"{string.Join(';', htmlPath)};{pdfPath}");
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while (true) {
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var line = await WinziPrintProc.StandardOutput.ReadLineAsync() ?? throw new IOException("Invalid response from WinziPrint");
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if (line.StartsWith("error:")) {
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MessageBox.Show(line[6..].Trim(), "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
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return Array.Empty<int>();
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} else if (line.StartsWith("progress:")) {
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var parts = line[9..].Trim().Split('/').Select(int.Parse).ToArray();
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progress?.Report(parts[0] / (double)parts[1]);
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} else if (line.StartsWith("success:")) {
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var m = Regex.Match(line, @"\(([0-9, ]+)\)");
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return m.Groups[1].Value.Split(", ").Select(n => int.Parse(n));
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}
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}
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}
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public static void Show(TempFile file, string title) {
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App.MainDispatcher.BeginInvoke(() => {
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var w = new DocumentViewerWindow(title, file);
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w.Show();
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});
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}
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public static void Show(string path, string title) {
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App.MainDispatcher.BeginInvoke(() => {
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var w = new DocumentViewerWindow(title, path);
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w.Show();
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});
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}
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public static async Task Print(string path, int copies = 1) {
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var p = new Process() { StartInfo = new() { FileName = PdfToPrinter } };
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p.StartInfo.ArgumentList.Add(path);
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p.StartInfo.ArgumentList.Add("/s");
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p.StartInfo.ArgumentList.Add($"copies={copies}");
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p.Start();
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await p.WaitForExitAsync();
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}
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}
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}
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