/// <summary>
/// Fill RowRenderer with relative items data from ItemSource collection.
/// It prepares RowRenderer for rendering a whole row to a single image.
/// </summary>
/// <param name="startIndex">Index in ItemSource collection to start with</param>
private async Task <int> FillRowRendererWithItemDataAsync(int startIndex)
{
int itemsInRow = 0;
await Task.Run(() =>
{
RowRenderer.Dispatcher.Invoke(new Action(() =>
{
for (int itemIndex = startIndex, columnIndex = 0; columnIndex < ColumnsCount; columnIndex++, itemIndex++)
{
bool needToFill = true;
if (itemIndex < 0 || itemIndex > ItemSource.Count - 1) // need to check bounds
{
needToFill = false;
}
var panel = (StackPanel)RowRenderer.Children[columnIndex];
if (needToFill)
{
ItemData itemData = ItemSource[itemIndex];
(panel.Children[0] as Image).Source = itemData.ImageData;
(panel.Children[1] as TextBlock).Text = itemData.Title;
itemsInRow++;
}
else
{
(panel.Children[0] as Image).Source = null;
(panel.Children[1] as TextBlock).Text = string.Empty;
}
}
RowRenderer.UpdateLayout();
}));
});
return(itemsInRow);
}
protected override void RenderContentAreaItems(HtmlHelper htmlHelper, IEnumerable <ContentAreaItem> contentAreaItems)
{
bool?result = null;
var actualValue = htmlHelper.ViewContext.ViewData["rowsupport"];
if (actualValue is bool)
{
result = (bool)actualValue;
}
var isRowSupported = result;
var addRowMarkup = ConfigurationContext.Current.RowSupportEnabled && isRowSupported.HasValue && isRowSupported.Value;
// there is no need to proceed if row rendering support is disabled
if (!addRowMarkup)
{
CustomizedRenderContentAreaItems(htmlHelper, contentAreaItems);
return;
}
var rowRender = new RowRenderer();
rowRender.Render(contentAreaItems,
htmlHelper,
GetContentAreaItemTemplateTag,
GetColumnWidth,
CustomizedRenderContentAreaItems);
}
public VerseViewPresenter(VerseViewColorTheme colorTheme, Font font)
{
if (font == null)
{
throw new ArgumentNullException(nameof(font));
}
this.colorTheme = colorTheme ?? throw new ArgumentNullException(nameof(colorTheme));
this.rowRenderer = new RegularRowRenderer(new Renderer(font), new VerseViewColorTheme());
this.Font = font;
}
public static void RenderFormElements(
this HtmlHelper html,
int currentStepIndex,
IEnumerable <IFormElement> elements,
FormContainerBlock model,
object additionalValues = null)
{
// this means that somebody else took renderer seat and we need to find way around it
// essentially the only thing that is needed is access to renderer instance - we can create one from scratch here also
var renderer = ServiceLocator.Current.GetInstance <ContentAreaRenderer>() as BootstrapAwareContentAreaRenderer
?? new BootstrapAwareContentAreaRenderer(SetupBootstrapRenderer.AllDisplayOptions);
var additionalParameters = new RouteValueDictionary(additionalValues);
var isRowSupported = additionalParameters.GetValueFromDictionary("rowsupport");
var addRowMarkup = ConfigurationContext.Current.RowSupportEnabled && isRowSupported.HasValue && isRowSupported.Value;
if (!addRowMarkup)
{
foreach (var element in elements)
{
var areaItem = model
.ElementsArea
.Items
.FirstOrDefault(i => i.ContentLink == element.SourceContent.ContentLink);
RenderAreaItem(html, areaItem, renderer, element);
}
}
else
{
var rowRenderer = new RowRenderer();
rowRenderer.Render(
model.ElementsArea.Items,
html,
renderer.ContentAreaItemTemplateTagCore,
renderer.GetColumnWidth,
(_, items) => RenderItems(html, items, renderer, elements));
}
}
