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API improvements

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This commit is contained in:
Marcin Ziąbek
2021-10-22 01:38:08 +02:00
parent d3e8386418
commit fc33056434
6 changed files with 187 additions and 110 deletions
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QuestPDF.Examples/DynamicExamples.cs
+106 -51
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@@ -9,68 +9,123 @@ using QuestPDF.Infrastructure;
namespace QuestPDF.Examples
{
public class TableWithSubtotals : IDynamic
public class OrderItem
{
private ICollection<int> Values { get; }
private Queue<int> ValuesQueue { get; set; }
public TableWithSubtotals(ICollection<int> values)
public string ItemName { get; set; } = Placeholders.Label();
public int Price { get; set; } = Placeholders.Random.Next(1, 11) * 10;
public int Count { get; set; } = Placeholders.Random.Next(1, 11);
}
public class OrdersTable : IDynamicComponent
{
private ICollection<OrderItem> Items { get; }
private ICollection<OrderItem> ItemsLeft { get; set; }
public OrdersTable(ICollection<OrderItem> items)
{
Values = values;
Items = items;
}
public void Reset()
public void Compose(DynamicContext context, IDynamicContainer container)
{
ValuesQueue = new Queue<int>(Values);
if (context.Operation == DynamicLayoutOperation.Reset)
{
ItemsLeft = new List<OrderItem>(Items);
return;
}
var header = ComposeHeader(context);
var sampleFooter = ComposeFooter(context, Enumerable.Empty<OrderItem>());
var decorationHeight = header.Size.Height + sampleFooter.Size.Height;
var rows = GetItemsForPage(context, decorationHeight).ToList();
var footer = ComposeFooter(context, rows.Select(x => x.Item));
if (ItemsLeft.Count > rows.Count)
container.HasMoreContent();
if (context.Operation == DynamicLayoutOperation.Draw)
ItemsLeft = ItemsLeft.Skip(rows.Count).ToList();
container.Box().Decoration(decoration =>
{
decoration.Header().Element(header);
decoration.Content().Box().Stack(stack =>
{
foreach (var row in rows)
stack.Item().Element(row.Element);
});
decoration.Footer().Element(footer);
});
}
public bool Compose(DynamicContext context, IContainer container)
private IDynamicElement ComposeHeader(DynamicContext context)
{
var internalQueue = new Queue<int>(ValuesQueue);
container.Box().Border(2).Background(Colors.Grey.Lighten3).Stack(stack =>
return context.CreateElement(element =>
{
var summaryHeight = 40f;
var totalHeight = summaryHeight;
var total = 0;
while (internalQueue.Any())
{
var value = internalQueue.Peek();
var structure = context.Content(content =>
element
.BorderBottom(1)
.BorderColor(Colors.Grey.Darken2)
.Padding(5)
.Row(row =>
{
content
.Padding(10)
.Text(value);
var textStyle = TextStyle.Default.SemiBold();
row.ConstantColumn(30).Text("#", textStyle);
row.RelativeColumn().Text("Item name", textStyle);
row.ConstantColumn(50).AlignRight().Text("Count", textStyle);
row.ConstantColumn(50).AlignRight().Text("Price", textStyle);
row.ConstantColumn(50).AlignRight().Text("Total", textStyle);
});
var structureHeight = structure.Measure().Height;
if (totalHeight + structureHeight > context.AvailableSize.Height)
break;
totalHeight += structureHeight;
total += value;
stack.Item().Border(1).Element(structure);
internalQueue.Dequeue();
}
stack
.Item()
.ShowEntire()
.Border(2)
.Background(Colors.Grey.Lighten1)
.Padding(10)
.Text($"Total: {total}", TextStyle.Default.SemiBold());
});
}
private IDynamicElement ComposeFooter(DynamicContext context, IEnumerable<OrderItem> items)
{
var total = items.Sum(x => x.Count * x.Price);
if (context.IsDrawStep)
ValuesQueue = internalQueue;
return context.CreateElement(element =>
{
element
.Padding(5)
.AlignRight()
.Text($"Subtotal: {total}$", TextStyle.Default.Size(14).SemiBold());
});
}
private IEnumerable<(OrderItem Item, IDynamicElement Element)> GetItemsForPage(DynamicContext context, float decorationHeight)
{
var totalHeight = decorationHeight;
var counter = Items.Count - ItemsLeft.Count + 1;
return internalQueue.Any();
foreach (var orderItem in ItemsLeft)
{
var element = context.CreateElement(content =>
{
content
.BorderBottom(1)
.BorderColor(Colors.Grey.Lighten2)
.Padding(5)
.Row(row =>
{
row.ConstantColumn(30).Text(counter++);
row.RelativeColumn().Text(orderItem.ItemName);
row.ConstantColumn(50).AlignRight().Text(orderItem.Count);
row.ConstantColumn(50).AlignRight().Text($"{orderItem.Price}$");
row.ConstantColumn(50).AlignRight().Text($"{orderItem.Count*orderItem.Price}$");
});
});
var elementHeight = element.Size.Height;
if (totalHeight + elementHeight > context.AvailableSize.Height)
break;
totalHeight += elementHeight;
yield return (orderItem, element);
}
}
}
@@ -81,12 +136,12 @@ namespace QuestPDF.Examples
{
RenderingTest
.Create()
.PageSize(300, 500)
.PageSize(PageSizes.A5)
.FileName()
.ShowResults()
.Render(container =>
{
var values = Enumerable.Range(0, 15).ToList();
var items = Enumerable.Range(0, 25).Select(x => new OrderItem()).ToList();
container
.Background(Colors.White)
@@ -107,7 +162,7 @@ namespace QuestPDF.Examples
decoration
.Content()
.Dynamic(new TableWithSubtotals(values));
.Dynamic(new OrdersTable(items));
});
});
}