/// <summary>
/// Renders a MigraDoc document to the specified graphics object.
/// </summary>
public void RenderPage(XGraphics gfx, int page, PageRenderOptions options)
{
if (this.formattedDocument.IsEmptyPage(page))
{
return;
}
FieldInfos fieldInfos = this.formattedDocument.GetFieldInfos(page);
if (this.printDate != DateTime.MinValue)
{
fieldInfos.date = this.printDate;
}
else
{
fieldInfos.date = DateTime.Now;
}
if ((options & PageRenderOptions.RenderHeader) == PageRenderOptions.RenderHeader)
{
RenderHeader(gfx, page);
}
if ((options & PageRenderOptions.RenderFooter) == PageRenderOptions.RenderFooter)
{
RenderFooter(gfx, page);
}
if ((options & PageRenderOptions.RenderContent) == PageRenderOptions.RenderContent)
{
RenderInfo[] renderInfos = this.formattedDocument.GetRenderInfos(page);
//foreach (RenderInfo renderInfo in renderInfos)
int count = renderInfos.Length;
for (int idx = 0; idx < count; idx++)
{
RenderInfo renderInfo = renderInfos[idx];
Renderer renderer = Renderer.Create(gfx, this, renderInfo, fieldInfos);
renderer.Render();
}
}
}
internal TableRenderer(XGraphics gfx, RenderInfo renderInfo, FieldInfos fieldInfos)
:
base(gfx, renderInfo, fieldInfos)
{
this.table = (Table)this.renderInfo.DocumentObject;
}
internal TextFrameRenderer(XGraphics gfx, RenderInfo renderInfo, FieldInfos fieldInfos)
: base(gfx, renderInfo, fieldInfos)
{
this.textframe = (TextFrame)renderInfo.DocumentObject;
}
/// <summary>
/// Creates a fitting renderer for the render info to render and layout with.
/// </summary>
/// <param name="gfx">The XGraphics object to render on.</param>
/// <param name="documentRenderer">The document renderer.</param>
/// <param name="renderInfo">The RenderInfo object stored after a previous call of Format().</param>
/// <param name="fieldInfos">The field infos.</param>
/// <returns>The fitting Renderer.</returns>
internal static Renderer Create(XGraphics gfx, DocumentRenderer documentRenderer, RenderInfo renderInfo, FieldInfos fieldInfos)
{
Renderer renderer = null;
if (renderInfo.DocumentObject is Paragraph)
{
renderer = new ParagraphRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is Table)
{
renderer = new TableRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is PageBreak)
{
renderer = new PageBreakRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is TextFrame)
{
renderer = new TextFrameRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is Chart)
{
renderer = new ChartRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is Chart)
{
renderer = new ChartRenderer(gfx, renderInfo, fieldInfos);
}
else if (renderInfo.DocumentObject is Image)
{
renderer = new ImageRenderer(gfx, renderInfo, fieldInfos);
}
if (renderer != null)
{
renderer.documentRenderer = documentRenderer;
}
return(renderer);
}
internal ChartRenderer(XGraphics gfx, RenderInfo renderInfo, FieldInfos fieldInfos)
: base(gfx, renderInfo, fieldInfos)
{
this.chart = (Chart)renderInfo.DocumentObject;
}
internal ImageRenderer(XGraphics gfx, RenderInfo renderInfo, FieldInfos fieldInfos)
: base(gfx, renderInfo, fieldInfos)
{
this.image = (Image)renderInfo.DocumentObject;
}
/// <summary>
/// Initializes a ParagraphRenderer object for rendering.
/// </summary>
/// <param name="gfx">The XGraphics object to render on.</param>
/// <param name="renderInfo">The render info object containing information necessary for rendering.</param>
/// <param name="fieldInfos">The field infos.</param>
internal PageBreakRenderer(XGraphics gfx, RenderInfo renderInfo, FieldInfos fieldInfos)
: base(gfx, renderInfo, fieldInfos)
{
this.renderInfo = renderInfo;
}
/// <summary>
/// Formats the elements on the areas provided by the area provider.
/// </summary>
/// <param name="gfx">The graphics object to render on.</param>
/// <param name="topLevel">if set to <c>true</c> formats the object is on top level.</param>
public void FormatOnAreas(XGraphics gfx, bool topLevel)
{
this.gfx = gfx;
XUnit prevBottomMargin = 0;
XUnit yPos = prevBottomMargin;
RenderInfo prevRenderInfo = null;
FormatInfo prevFormatInfo = null;
ArrayList renderInfos = new ArrayList();
bool ready = this.elements.Count == 0;
bool isFirstOnPage = true;
Area area = this.areaProvider.GetNextArea();
XUnit maxHeight = area.Height;
if (ready)
{
this.areaProvider.StoreRenderInfos(renderInfos);
return;
}
int idx = 0;
while (!ready && area != null)
{
DocumentObject docObj = this.elements[idx];
Renderer renderer = Renderer.Create(gfx, this.documentRenderer, docObj, this.areaProvider.AreaFieldInfos);
if (renderer != null) // "Slightly hacked" for legends: see below
{
renderer.MaxElementHeight = maxHeight;
}
if (topLevel && this.documentRenderer.HasPrepareDocumentProgress)
{
this.documentRenderer.OnPrepareDocumentProgress(this.documentRenderer.ProgressCompleted + idx + 1,
this.documentRenderer.ProgressMaximum);
}
// "Slightly hacked" for legends: they are rendered as part of the chart.
// So they are skipped here.
if (renderer == null)
{
ready = idx == this.elements.Count - 1;
if (ready)
{
this.areaProvider.StoreRenderInfos(renderInfos);
}
++idx;
continue;
}
///////////////////////////////////////////
if (prevFormatInfo == null)
{
LayoutInfo initialLayoutInfo = renderer.InitialLayoutInfo;
XUnit distance = prevBottomMargin;
if (initialLayoutInfo.VerticalReference == VerticalReference.PreviousElement &&
initialLayoutInfo.Floating != Floating.None) //Added KlPo 12.07.07
{
distance = MarginMax(initialLayoutInfo.MarginTop, distance);
}
area = area.Lower(distance);
}
renderer.Format(area, prevFormatInfo);
this.areaProvider.PositionHorizontally(renderer.RenderInfo.LayoutInfo);
bool pagebreakBefore = this.areaProvider.IsAreaBreakBefore(renderer.RenderInfo.LayoutInfo) && !isFirstOnPage;
pagebreakBefore = pagebreakBefore || !isFirstOnPage && IsForcedAreaBreak(idx, renderer, area);
if (!pagebreakBefore && renderer.RenderInfo.FormatInfo.IsEnding)
{
if (PreviousRendererNeedsRemoveEnding(prevRenderInfo, renderer.RenderInfo, area))
{
prevRenderInfo.RemoveEnding();
renderer = Renderer.Create(gfx, this.documentRenderer, docObj, this.areaProvider.AreaFieldInfos);
renderer.MaxElementHeight = maxHeight;
renderer.Format(area, prevRenderInfo.FormatInfo);
}
else if (NeedsEndingOnNextArea(idx, renderer, area, isFirstOnPage))
{
renderer.RenderInfo.RemoveEnding();
prevRenderInfo = FinishPage(renderer.RenderInfo, pagebreakBefore, ref renderInfos);
if (prevRenderInfo != null)
{
prevFormatInfo = prevRenderInfo.FormatInfo;
}
else
{
prevFormatInfo = null;
isFirstOnPage = true;
}
prevBottomMargin = 0;
area = this.areaProvider.GetNextArea();
maxHeight = area.Height;
}
else
{
renderInfos.Add(renderer.RenderInfo);
isFirstOnPage = false;
areaProvider.PositionVertically(renderer.RenderInfo.LayoutInfo);
if (renderer.RenderInfo.LayoutInfo.VerticalReference == VerticalReference.PreviousElement &&
renderer.RenderInfo.LayoutInfo.Floating != Floating.None)//Added KlPo 12.07.07
{
prevBottomMargin = renderer.RenderInfo.LayoutInfo.MarginBottom;
if (renderer.RenderInfo.LayoutInfo.Floating != Floating.None)
{
area = area.Lower(renderer.RenderInfo.LayoutInfo.ContentArea.Height);
}
}
else
{
prevBottomMargin = 0;
}
prevFormatInfo = null;
prevRenderInfo = null;
++idx;
}
}
else
{
if (renderer.RenderInfo.FormatInfo.IsEmpty && isFirstOnPage)
{
area = area.Unite(new Rectangle(area.X, area.Y, area.Width, double.MaxValue));
renderer = Renderer.Create(gfx, this.documentRenderer, docObj, this.areaProvider.AreaFieldInfos);
renderer.MaxElementHeight = maxHeight;
renderer.Format(area, prevFormatInfo);
prevFormatInfo = null;
//Added KlPo 12.07.07
this.areaProvider.PositionHorizontally(renderer.RenderInfo.LayoutInfo);
this.areaProvider.PositionVertically(renderer.RenderInfo.LayoutInfo);
//Added End
ready = idx == this.elements.Count - 1;
++idx;
}
prevRenderInfo = FinishPage(renderer.RenderInfo, pagebreakBefore, ref renderInfos);
if (prevRenderInfo != null)
{
prevFormatInfo = prevRenderInfo.FormatInfo;
}
else
{
prevFormatInfo = null;
}
isFirstOnPage = true;
prevBottomMargin = 0;
#if false
area = this.areaProvider.GetNextArea();
#else
if (!ready) //!!!newTHHO 19.01.2007: korrekt? oder GetNextArea immer ausführen???
{
area = this.areaProvider.GetNextArea();
maxHeight = area.Height;
}
#endif
}
if (idx == this.elements.Count && !ready)
{
this.areaProvider.StoreRenderInfos(renderInfos);
ready = true;
}
}
}
