/// <summary>
/// Get total count of pages. Set any local page-size related values (e.g. linesPerPage)
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public override async Task <int> RenderAsync(System.Drawing.Printing.PrinterResolution printerResolution)
{
Helpers.Logging.TraceMessage("HtmlFileContent.RenderAsync()");
await base.RenderAsync(printerResolution);
int width = (int)PageSize.Width; // (printerResolution.X * PageSize.Width / 100);
int height = (int)PageSize.Height; // (printerResolution.Y * PageSize.Height / 100);
Helpers.Logging.TraceMessage($"HtmlFileContent.RenderAsync - Page size: {width}x{height} @ {printerResolution.X}x{printerResolution.Y} dpi");
string css;
try {
// TODO: Make sure wiprint.css is in the same dir as .config file once setup is impl
using StreamReader cssStream = new StreamReader("winprint.css");
css = await cssStream.ReadToEndAsync();
cssStream.Close();
}
catch {
css = IncludedWinPrintCss.CssString;
}
var resources = new HtmlResources(filePath);
litehtml = new GDIPlusContainer(css, resources.GetResourceString, resources.GetResourceBytes);
litehtml.Size = new LiteHtmlSize(width, 0);
litehtml.PageHeight = height;
htmlBitmap = new Bitmap(width, height);
//htmlBitmap.SetResolution(printerResolution.X, printerResolution.Y);
var g = Graphics.FromImage(htmlBitmap);
g.PageUnit = GraphicsUnit.Display;
//g.FillRectangle(Brushes.LightYellow, new Rectangle(0, 0, width, height));
Helpers.Logging.TraceMessage($"HtmlFileContent.RenderAsync() Graphic is {htmlBitmap.Width}x{htmlBitmap.Height} @ {g.DpiX}x{g.DpiY} dpi. PageUnit = {g.PageUnit.ToString()}");
litehtml.Graphics = g;
Helpers.Logging.TraceMessage($"PageUnit = {g.PageUnit.ToString()}");
litehtml.Document.CreateFromString(document);
litehtml.Document.OnMediaChanged();
// TODO: Use return of Render() to get "best width"
int bestWidth = litehtml.Document.Render((int)width);
//litehtml.SetViewport(new LiteHtmlPoint(0, 0), new LiteHtmlSize(width, height));
//litehtml.Draw();
litehtml.Graphics = null;
Helpers.Logging.TraceMessage($"Litehtml_DocumentSizeKnown {litehtml.Document.Width()}x{litehtml.Document.Height()} bestWidth = {bestWidth}");
var n = (int)(litehtml.Document.Height() / height) + 1;
Helpers.Logging.TraceMessage($"HtmlFileContent.RenderAsync - {n} pages.");
return(n);
}
public static HtmlResourcesContext CreateResourcesContext(this HttpContextBase httpContext, string contextKey, HtmlResources resources = null)
{
return(Helper.CreateResourcesContext(httpContext, contextKey, resources));
}
public static HtmlResourcesContext CreateResourcesContext(this HtmlHelper htmlHelper, string contextKey, HtmlResources resources = null)
{
Assert.ArgumentNotNull(htmlHelper, "htmlHelper");
return(Helper.CreateResourcesContext(htmlHelper.ViewContext.HttpContext, contextKey, resources));
}
public GetDefaultResourcesArgs()
{
this.Head = new HtmlResources();
this.Body = new HtmlResources();
this.AllPageBody = new HtmlResources();
}
/// <summary>
/// Get total count of pages. Set any local page-size related values (e.g. linesPerPage)
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public override async Task <int> RenderAsync(System.Drawing.Printing.PrinterResolution printerResolution, EventHandler <string> reflowProgress)
{
LogService.TraceMessage();
_ready = false;
reflowProgress?.Invoke(this, "HtmlFileContent.RenderAsync");
await base.RenderAsync(printerResolution, reflowProgress).ConfigureAwait(false);
var width = (int)PageSize.Width; // (printerResolution.X * PageSize.Width / 100);
var height = (int)PageSize.Height; // (printerResolution.Y * PageSize.Height / 100);
LogService.TraceMessage($"HtmlFileContent.RenderAsync - Page size: {width}x{height} @ {printerResolution.X}x{printerResolution.Y} dpi");
string css;
try {
// TODO: Make sure winprint.css is in the same dir as .config file once setup is impl
using var cssStream = new StreamReader("winprint.css");
css = await cssStream.ReadToEndAsync();
cssStream.Close();
reflowProgress?.Invoke(this, "Read winprint.css");
}
catch {
css = IncludedWinPrintCss.CssString;
}
// BUGBUG: wihtout knowing the relative root path fo the html document we can't load any resources
var resources = new HtmlResources("");
_litehtml = new GDIPlusContainer(css, resources.GetResourceString, resources.GetResourceBytes)
{
Diagnostics = ContentSettings.Diagnostics,
Size = new LiteHtmlSize(width, 0),
PageHeight = height
};
_htmlBitmap = new Bitmap(width, height);
//htmlBitmap.SetResolution(printerResolution.X, printerResolution.Y);
var g = Graphics.FromImage(_htmlBitmap);
g.PageUnit = GraphicsUnit.Display;
g.TextRenderingHint = ContentTypeEngineBase.TextRenderingHint;
//g.FillRectangle(Brushes.LightYellow, new Rectangle(0, 0, width, height));
LogService.TraceMessage($"HtmlFileContent.RenderAsync() Graphic is {_htmlBitmap.Width} x {_htmlBitmap.Height} @ {g.DpiX} x {g.DpiY} dpi. PageUnit = {g.PageUnit.ToString()}");
_litehtml.Graphics = g;
_litehtml.StringFormat = ContentTypeEngineBase.StringFormat;
_litehtml.Grayscale = ContentSettings.Grayscale;
_litehtml.Darkness = ContentSettings.Darkness;
_litehtml.PrintBackground = ContentSettings.PrintBackground;
//Logging.TraceMessage("litehtml.Document.CreateFromString(document)");
reflowProgress?.Invoke(this, "litehtml.Document.CreateFromString(document)");
_litehtml.Document.CreateFromString(Document);
//Logging.TraceMessage("back from litehtml.Document.CreateFromString(document)");
reflowProgress?.Invoke(this, "back from litehtml.Document.CreateFromString(document)");
_litehtml.Document.OnMediaChanged();
// TODO: Use return of Render() to get "best width"
var bestWidth = _litehtml.Document.Render(width);
reflowProgress?.Invoke(this, "Done with Render");
// Note, setting viewport does nothing
//litehtml.SetViewport(new LiteHtmlPoint(0, 0), new LiteHtmlSize(width, height));
_litehtml.Graphics = null;
//Logging.TraceMessage($"Litehtml_DocumentSizeKnown {_litehtml.Document.Width()}x{_litehtml.Document.Height()} bestWidth = {bestWidth}");
var n = _litehtml.Document.Height() / height + 1;
Logging.TraceMessage($"HtmlFileContent.RenderAsync - {n} pages.");
_ready = true;
return(n);
}
public virtual HtmlResourcesContext CreateResourcesContext(HttpContextBase httpContext, string contextKey, HtmlResources resources = null)
{
return(new HtmlResourcesContext(httpContext, contextKey, resources));
}
