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Code Issues 8 Pull Requests Actions Releases 46 Activity

Documents/Pdf: Add progress tracker

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This commit is contained in:
Lorenz Stechauner
2023-10-19 22:16:33 +02:00
parent f19de3ae6e
commit c190ce1474
5 changed files with 34 additions and 17 deletions
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14
Elwig/Documents/Document.cshtml.cs
View File

@ -47,7 +47,7 @@ namespace Elwig.Documents {
GC.SuppressFinalize(this);
}
public static async Task<Document> Merge(IEnumerable<Document> docs) {
public static Document Merge(IEnumerable<Document> docs) {
return new MergedDocument(docs);
}
@ -75,17 +75,21 @@ namespace Elwig.Documents {
return await Html.CompileRenderAsync(name, this); ;
}
public async Task Generate() {
public async Task Generate(IProgress<double>? progress = null) {
progress?.Report(0.0);
if (this is MergedDocument m) {
var pdf = new TempFile("pdf");
var tmpHtmls = new List<TempFile>();
var n = 0;
foreach (var doc in m.Documents) {
var tmpHtml = new TempFile("html");
await doc.Render();
await File.WriteAllTextAsync(tmpHtml.FilePath, await doc.Render(), Utils.UTF8);
tmpHtmls.Add(tmpHtml);
n++;
progress?.Report(50.0 * n / m.Documents.Count());
}
await Pdf.Convert(tmpHtmls.Select(f => f.FilePath), pdf.FilePath);
progress?.Report(50.0);
await Pdf.Convert(tmpHtmls.Select(f => f.FilePath), pdf.FilePath, new Progress<double>(v => progress?.Report(50.0 + v / 2)));
foreach (var tmp in tmpHtmls) {
tmp.Dispose();
}
@ -94,10 +98,12 @@ namespace Elwig.Documents {
var pdf = new TempFile("pdf");
using (var tmpHtml = new TempFile("html")) {
await File.WriteAllTextAsync(tmpHtml.FilePath, await Render(), Utils.UTF8);
progress?.Report(50.0);
await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath);
}
_pdfFile = pdf;
}
progress?.Report(100.0);
}
public void SaveTo(string pdfPath) {

27
Elwig/Documents/Pdf.cs
View File

@ -21,7 +21,7 @@ namespace Elwig.Documents {
public static async Task Init(Action evtHandler) {
var p = new Process() { StartInfo = new() {
FileName = WinziPrint,
Arguments = "-",
Arguments = $"-p -e utf-8 -d '{App.TempPath}' -",
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardInput = true,
@ -32,20 +32,27 @@ namespace Elwig.Documents {
evtHandler();
}
public static async Task<IEnumerable<int>> Convert(string htmlPath, string pdfPath) {
return await Convert(new string[] { htmlPath }, pdfPath);
public static async Task<IEnumerable<int>> Convert(string htmlPath, string pdfPath, IProgress<double>? progress = null) {
return await Convert(new string[] { htmlPath }, pdfPath, progress);
}
public static async Task<IEnumerable<int>> Convert(IEnumerable<string> htmlPath, string pdfPath) {
public static async Task<IEnumerable<int>> Convert(IEnumerable<string> htmlPath, string pdfPath, IProgress<double>? progress = null) {
if (WinziPrintProc == null) throw new InvalidOperationException("The WinziPrint process has not been initialized yet");
progress?.Report(0.0);
await WinziPrintProc.StandardInput.WriteLineAsync($"{string.Join(';', htmlPath)};{pdfPath}");
var line = await WinziPrintProc.StandardOutput.ReadLineAsync() ?? throw new IOException("Invalid response from WinziPrint");
if (line.StartsWith("error:")) {
MessageBox.Show(line[6..].Trim(), "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
return Array.Empty<int>();
while (true) {
var line = await WinziPrintProc.StandardOutput.ReadLineAsync() ?? throw new IOException("Invalid response from WinziPrint");
if (line.StartsWith("error:")) {
MessageBox.Show(line[6..].Trim(), "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
return Array.Empty<int>();
} else if (line.StartsWith("progress:")) {
var parts = line[9..].Trim().Split('/').Select(int.Parse).ToArray();
progress?.Report(parts[0] / (double)parts[1]);
} else if (line.StartsWith("success:")) {
var m = Regex.Match(line, @"\(([0-9, ]+)\)");
return m.Groups[1].Value.Split(", ").Select(n => int.Parse(n));
}
}
var m = Regex.Match(line, @"\(([0-9, ]+)\)");
return m.Groups[1].Value.Split(", ").Select(n => int.Parse(n));
}
public static void Show(TempFile file, string title) {