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Landscape page orientation #1

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Merged
polybioz merged 2 commits into from
Jan 5, 2025
Merged

Landscape page orientation #1

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743821f
Added page orientation to generated pdf
ArturasDeltuvas Sep 20, 2023
2059eac
Cleanup
ArturasDeltuvas Sep 20, 2023
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87 changes: 42 additions & 45 deletions Source/HtmlRenderer.PdfSharp.Core/PdfGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -134,60 +134,57 @@ public static void AddPdfPages(PdfDocument document, string html, PdfGenerateCon
else
orgPageSize = config.ManualPageSize;

if (config.PageOrientation == PageOrientation.Landscape)
{
// invert pagesize for landscape
orgPageSize = new XSize(orgPageSize.Height, orgPageSize.Width);
}
var pageSize = config.PageOrientation == PageOrientation.Landscape ?
new XSize(orgPageSize.Height - config.MarginLeft - config.MarginRight, orgPageSize.Width - config.MarginTop - config.MarginBottom) :
new XSize(orgPageSize.Width - config.MarginLeft - config.MarginRight, orgPageSize.Height - config.MarginTop - config.MarginBottom);

var pageSize = new XSize(orgPageSize.Width - config.MarginLeft - config.MarginRight, orgPageSize.Height - config.MarginTop - config.MarginBottom);
if (string.IsNullOrEmpty(html))
return;

if (!string.IsNullOrEmpty(html))
using (var container = new HtmlContainer())
{
using (var container = new HtmlContainer())
if (stylesheetLoad != null)
container.StylesheetLoad += stylesheetLoad;
if (imageLoad != null)
container.ImageLoad += imageLoad;

container.Location = new XPoint(config.MarginLeft, config.MarginTop);
container.MaxSize = new XSize(pageSize.Width, 0);
container.SetHtml(html, cssData);
container.PageSize = pageSize;
container.MarginBottom = config.MarginBottom;
container.MarginLeft = config.MarginLeft;
container.MarginRight = config.MarginRight;
container.MarginTop = config.MarginTop;

// layout the HTML with the page width restriction to know how many pages are required
using (var measure = XGraphics.CreateMeasureContext(pageSize, XGraphicsUnit.Point, XPageDirection.Downwards))
{
if (stylesheetLoad != null)
container.StylesheetLoad += stylesheetLoad;
if (imageLoad != null)
container.ImageLoad += imageLoad;

container.Location = new XPoint(config.MarginLeft, config.MarginTop);
container.MaxSize = new XSize(pageSize.Width, 0);
container.SetHtml(html, cssData);
container.PageSize = pageSize;
container.MarginBottom = config.MarginBottom;
container.MarginLeft = config.MarginLeft;
container.MarginRight = config.MarginRight;
container.MarginTop = config.MarginTop;

// layout the HTML with the page width restriction to know how many pages are required
using (var measure = XGraphics.CreateMeasureContext(pageSize, XGraphicsUnit.Point, XPageDirection.Downwards))
{
container.PerformLayout(measure);
}
container.PerformLayout(measure);
}

// while there is un-rendered HTML, create another PDF page and render with proper offset for the next page
double scrollOffset = 0;
while (scrollOffset > -container.ActualSize.Height)
{
var page = document.AddPage();
page.Height = orgPageSize.Height;
page.Width = orgPageSize.Width;
// while there is un-rendered HTML, create another PDF page and render with proper offset for the next page
double scrollOffset = 0;
while (scrollOffset > -container.ActualSize.Height)
{
var page = document.AddPage();
page.Height = orgPageSize.Height;
page.Width = orgPageSize.Width;
page.Orientation = config.PageOrientation;

using (var g = XGraphics.FromPdfPage(page))
{
//g.IntersectClip(new XRect(config.MarginLeft, config.MarginTop, pageSize.Width, pageSize.Height));
g.IntersectClip(new XRect(0, 0, page.Width, page.Height));
using (var g = XGraphics.FromPdfPage(page))
{
//g.IntersectClip(new XRect(config.MarginLeft, config.MarginTop, pageSize.Width, pageSize.Height));
g.IntersectClip(new XRect(0, 0, page.Width, page.Height));

container.ScrollOffset = new XPoint(0, scrollOffset);
container.PerformPaint(g);
}
scrollOffset -= pageSize.Height;
container.ScrollOffset = new XPoint(0, scrollOffset);
container.PerformPaint(g);
}

// add web links and anchors
HandleLinks(document, container, orgPageSize, pageSize);
scrollOffset -= pageSize.Height;
}

// add web links and anchors
HandleLinks(document, container, orgPageSize, pageSize);
}
}

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