public async Task RenderRow(TablatureRenderingContext renderingContext, List <BarRenderer> barRenderers, Point location, Size availableSize, bool isFirstRow)
{
var rowRenderingContext = new RowRenderingContext(renderingContext, location, availableSize);
barRenderers.AssignRenderingContexts(rowRenderingContext);
var availableWidth = availableSize.Width;
var count = barRenderers.Count;
var averageWidth = availableWidth / count;
foreach (var bar in barRenderers)
{
await bar.MeasureMinSize(renderingContext.PrimitiveRenderer);
}
foreach (var bar in barRenderers.OrderByDescending(b => b.GetMinSize()))
{
var minSize = bar.GetMinSize();
if (minSize < averageWidth)
{
break;
}
--count;
availableWidth -= minSize;
averageWidth = availableWidth / count;
}
for (int i = 0; i < barRenderers.Count; i++)
{
var bar = barRenderers[i];
var minSize = bar.GetMinSize();
var width = Math.Min(availableSize.Width, Math.Max(minSize, averageWidth));
var size = new Size(width, availableSize.Height);
var inRowPosition = i == 0
? BarInRowPosition.First
: i == barRenderers.Count - 1
? BarInRowPosition.Last
: BarInRowPosition.Middle;
await bar.Render(location, size, inRowPosition);
location.X += size.Width;
}
rowRenderingContext.FinishHorizontalBarLines(availableSize.Width);
//rowRenderingContext.DebugDrawHeightMaps();
rowRenderingContext.BeginPostRender();
foreach (var bar in barRenderers)
{
await bar.PostRender();
}
renderingContext.PreviousDocumentState = rowRenderingContext.PreviousDocumentState;
}
public async Task Render(RenderingContext rootRc, Point location, Size size)
{
this.RenderingContext = rootRc;
this.PrimitiveRenderer.Clear();
var tablatureRc = new TablatureRenderingContext(rootRc, this.PrimitiveRenderer, this.Style);
await this.RenderBars(tablatureRc, location, size);
}
private async Task RenderBars(TablatureRenderingContext renderingContext, Point location, Size availableSize)
{
var startY = location.Y;
var isFirstRow = true;
var caret = this.Style.FirstRowIndention;
var barIndex = 0;
var barRenders = new List <BarRenderer>();
// ReSharper disable once AccessToModifiedClosure
while (barIndex < this.Tablature.Bars.Length)
{
if (barRenders.Count < this.Style.RegularBarsPerRow)
{
var barRenderer = _barRenderers[barIndex];
var minWidth = await barRenderer.MeasureMinSize(renderingContext.PrimitiveRenderer);
if (caret + minWidth <= availableSize.Width || barRenders.Count == 0)
{
barRenders.Add(barRenderer);
caret += minWidth;
++barIndex;
continue;
}
}
var height = availableSize.Height - location.Y + startY;
if (height <= 0)
{
return;
}
await this.RenderRow(renderingContext, barRenders, location,
new Size(availableSize.Width,
availableSize.Height - location.Y + startY),
isFirstRow);
location.Y += this.Style.BarTopMargin + this.Style.BarLineHeight * this.Style.StringCount + this.Style.BarBottomMargin;
// todo: handle new page
isFirstRow = false;
barRenders.Clear();
caret = 0;
}
if (barRenders.Count > 0)
{
await this.RenderRow(renderingContext, barRenders, location,
new Size(availableSize.Width,
availableSize.Height - location.Y + startY),
isFirstRow);
}
}
