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QuestPDF/Source/QuestPDF.Examples/TextExamples.cs
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2023-01-06 00:45:12 +01:00

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C#
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using System;
using System.Linq;
using System.Text;
using NUnit.Framework;
using QuestPDF.Elements.Text;
using QuestPDF.Examples.Engine;
using QuestPDF.Fluent;
using QuestPDF.Helpers;
using QuestPDF.Infrastructure;
namespace QuestPDF.Examples
{
public class TextExamples
{
[Test]
public void SimpleText()
{
RenderingTest
.Create()
.PageSize(500, 100)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(5)
.MinimalBox()
.Border(1)
.Padding(10)
.Text(Placeholders.Paragraph());
});
}
[Test]
public void SimpleTextBlock()
{
RenderingTest
.Create()
.PageSize(600, 300)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(5)
.MinimalBox()
.Border(1)
.MaxWidth(300)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default.FontSize(20));
text.Span("This is a normal text, followed by an ");
text.Span("underlined red text").FontColor(Colors.Red.Medium).Underline();
text.Span(".");
});
});
}
[Test]
public void TextWeight()
{
RenderingTest
.Create()
.PageSize(500, 500)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.MinimalBox()
.Border(1)
.Padding(20)
.Text(text =>
{
text.DefaultTextStyle(x => x.FontFamily(Fonts.Calibri).FontSize(20));
text.Line("Thin").Thin();
text.Line("ExtraLight").ExtraLight();
text.Line("Light").Light();
text.Line("NormalWeight").NormalWeight();
text.Line("Medium").Medium();
text.Line("SemiBold").SemiBold();
text.Line("Bold").Bold();
text.Line("ExtraBold").ExtraBold();
text.Line("Black").Black();
text.Line("ExtraBlack").ExtraBlack();
});
});
}
[Test]
public void LineHeight()
{
RenderingTest
.Create()
.PageSize(500, 700)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Column(column =>
{
var lineHeights = new[] { 0.8f, 1f, 1.5f };
var paragraph = Placeholders.Paragraph();
foreach (var lineHeight in lineHeights)
{
column
.Item()
.Border(1)
.Padding(10)
.Text(paragraph)
.FontSize(16)
.LineHeight(lineHeight);
}
});
});
}
[Test]
public void LetterSpacing()
{
RenderingTest
.Create()
.PageSize(500, 700)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Column(column =>
{
var letterSpacing = new[] { -0.1f, 0f, 0.2f };
var paragraph = Placeholders.Sentence().ToUpper();
foreach (var spacing in letterSpacing)
{
column
.Item()
.Border(1)
.Padding(10)
.Column(nestedColumn =>
{
nestedColumn.Item()
.Text(paragraph)
.FontSize(16)
.LetterSpacing(spacing);
nestedColumn.Item()
.Text($"Letter spacing of {spacing} em")
.FontSize(10)
.Italic()
.FontColor(Colors.Blue.Medium);
});
}
});
});
}
[Test]
public void LetterSpacing_Arabic()
{
RenderingTest
.Create()
.PageSize(500, 700)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(50)
.Column(column =>
{
var letterSpacing = new[] { -0.1f, 0f, 0.2f };
var paragraph = "ينا الألم. في بعض الأحيان ونظراً للالتزامات التي يفرضها علينا";
foreach (var spacing in letterSpacing)
{
column
.Item()
.Border(1)
.Padding(10)
.Column(nestedColumn =>
{
nestedColumn.Item()
.Text(paragraph)
.FontSize(16)
.FontFamily(Fonts.Calibri)
.LetterSpacing(spacing);
nestedColumn.Item()
.Text($"Letter spacing of {spacing} em")
.FontSize(10)
.Italic()
.FontColor(Colors.Blue.Medium);
});
}
});
});
}
[Test]
public void LetterSpacing_Unicode()
{
RenderingTest
.Create()
.PageSize(500, 700)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(50)
.Column(column =>
{
var letterSpacing = new[] { 0f, 0.5f };
var paragraph = "Ţ̴̡̧̤̮̺̤̗͎̱̹͙͎͖͂̿̓́̉̊̀̍͜h̵̞̘͇̾̎̏̅į̵̹̖͔͉̰̎̉̄̐̏͑͂̅̃̃͘͝s̷͓͉̭̭̯̬̥̻̰̩̦̑̀̀͌́̒̍̒̌̇͛̀͛́̎ ̷̡̡̟͕̳̺̝̼͇͔̬̟̖͍̈́̽͜͝͝i̶͔͚̟̊̐͛́͛̄̌ṡ̸̡̤̪͙͍̥͙̟̼̝̰̥͈̿̓̄̿̓͠ ̶̢̦̙͍̯̖̱̰̯͕͔͎̯̝̎͑t̸͖̲̱̼̎͐̎̉̾̎̾̌̅̔̏͘ȩ̶̝̫̙͓̙̣̔̀̌̔̋̂̑̈́̏̀̈͘̕͜͝s̸̫̝̮̻̼͐̅̄̎̎̑͝ț̷̨̢̨̻͈̮̞̆͗̓͊̃̌͂̑̉̕̕͜͝͝";
foreach (var spacing in letterSpacing)
{
column.Item()
.Text($"Letter spacing of {spacing} em")
.FontSize(10)
.Italic()
.FontColor(Colors.Blue.Medium);
column.Item()
.PaddingVertical(50)
.Text(paragraph)
.FontSize(16)
.FontFamily(Fonts.Calibri)
.LetterSpacing(spacing);
}
});
});
}
[Test]
public void SuperscriptSubscript_Simple()
{
RenderingTest
.Create()
.PageSize(500, 500)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.MinimalBox()
.Border(1)
.Padding(20)
.Text(text =>
{
text.DefaultTextStyle(x => x.FontSize(20));
text.ParagraphSpacing(10);
var highlight = TextStyle.Default.BackgroundColor(Colors.Green.Lighten3);
text.Span("E=mc").Style(highlight);
text.Span("2").Superscript().Style(highlight);
text.Span(" is the equation of massenergy equivalence.");
text.EmptyLine();
text.Span("H").Style(highlight);
text.Span("2").Subscript().Style(highlight);
text.Span("O").Style(highlight);
text.Span(" is the chemical formula for water.");
});
});
}
[Test]
public void SuperscriptSubscript_Effects()
{
RenderingTest
.Create()
.PageSize(800, 400)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(25)
.DefaultTextStyle(x => x.FontSize(30))
.Column(column =>
{
column.Spacing(25);
column.Item().Text(text =>
{
text.DefaultTextStyle(x => x.Underline());
text.Span("Underline of the superscript (E = mc");
text.Span("2").Superscript();
text.Span(") should be at the same height as for normal text.");
});
column.Item().Text(text =>
{
text.DefaultTextStyle(x => x.Underline());
text.Span("Underline of the subscript(H");
text.Span("2").Subscript();
text.Span("O) should be slightly lower than a normal text.");
});
column.Item().Text(text =>
{
text.DefaultTextStyle(x => x.Strikethrough());
text.Span("Strikethrough of both superscript (E=mc");
text.Span("2").Superscript();
text.Span(") and subscript(H");
text.Span("2").Subscript();
text.Span("O) should be visible in the middle of the text.");
});
});
});
}
[Test]
public void ParagraphSpacing()
{
RenderingTest
.Create()
.PageSize(500, 500)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(5)
.MinimalBox()
.Border(1)
.Padding(10)
.Text(text =>
{
text.Line(Placeholders.Paragraph());
});
});
}
[Test]
public void CustomElement()
{
RenderingTest
.Create()
.PageSize(500, 200)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(5)
.MinimalBox()
.Border(1)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default.FontSize(20));
text.Span("This is a random image aligned to the baseline: ");
text.Element()
.PaddingBottom(-6)
.Height(24)
.Width(48)
.Image(Placeholders.Image);
text.Span(".");
});
});
}
[Test]
public void TextElements()
{
RenderingTest
.Create()
.PageSize(PageSizes.A4)
.ProducePdf()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Padding(10)
.MinimalBox()
.Border(1)
.Padding(5)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default);
text.AlignLeft();
text.ParagraphSpacing(10);
text.Line(Placeholders.LoremIpsum());
text.Span($"This is target text that should show up. {DateTime.UtcNow:T} > This is a short sentence that will be wrapped into second line hopefully, right? <").Underline();
});
});
}
[Test]
public void Textcolumn()
{
RenderingTest
.Create()
.PageSize(PageSizes.A4)
.ProducePdf()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Padding(10)
.MinimalBox()
.Border(1)
.Padding(5)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default);
text.AlignLeft();
text.ParagraphSpacing(10);
foreach (var i in Enumerable.Range(1, 100))
text.Line($"{i}: {Placeholders.Paragraph()}");
});
});
}
[Test]
public void SpaceIssue()
{
RenderingTest
.Create()
.PageSize(PageSizes.A4)
.ProducePdf()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Padding(10)
.MinimalBox()
.Border(1)
.Padding(5)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(x => x.Bold());
text.DefaultTextStyle(TextStyle.Default);
text.AlignLeft();
text.ParagraphSpacing(10);
text.Span(Placeholders.LoremIpsum());
text.EmptyLine();
text.Span("This text is a normal text, ");
text.Span("this is a bold text, ").Bold();
text.Span("this is a red and underlined text, ").FontColor(Colors.Red.Medium).Underline();
text.Span("and this is slightly bigger text.").FontSize(16);
text.EmptyLine();
text.Span("The new text element also supports injecting custom content between words: ");
text.Element().PaddingBottom(-4).Height(16).Width(32).Image(Placeholders.Image);
text.Span(".");
text.EmptyLine();
text.Span("This is page number ");
text.CurrentPageNumber();
text.Span(" out of ");
text.TotalPages();
text.EmptyLine();
text.Hyperlink("Please visit QuestPDF website", "https://www.questpdf.com");
text.EmptyLine();
text.Span(Placeholders.Paragraphs());
text.EmptyLine();
text.Span(Placeholders.Paragraphs()).Italic();
text.Line("This is target text that does not show up. " + Placeholders.Paragraph());
});
});
}
[Test]
public void HugeList()
{
RenderingTest
.Create()
.PageSize(PageSizes.A4)
.ProducePdf()
.ShowResults()
.Render(container =>
{
container
.Padding(20)
.Padding(10)
.MinimalBox()
.Border(1)
.Padding(5)
.Padding(10)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default.FontSize(20).BackgroundColor(Colors.Red.Lighten4));
text.AlignLeft();
text.ParagraphSpacing(10);
text.Span("This text is a normal text, ");
text.Span("this is a bold text, ").Bold();
text.Span("this is a red and underlined text, ").FontColor(Colors.Red.Medium).Underline();
text.Span("and this is slightly bigger text.").FontSize(16);
text.Span("The new text element also supports injecting custom content between words: ");
text.Element().PaddingBottom(-4).Height(16).Width(32).Image(Placeholders.Image);
text.Span(".");
text.EmptyLine();
foreach (var i in Enumerable.Range(1, 100))
{
text.Line($"{i}: {Placeholders.Paragraph()}");
text.Hyperlink("Please visit QuestPDF website. ", "https://www.questpdf.com");
text.Span("This is page number ");
text.CurrentPageNumber();
text.Span(" out of ");
text.TotalPages();
text.EmptyLine();
}
});
});
}
[Test]
public void MeasureIssueWhenSpaceAtLineEnd()
{
// issue 135
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.Size(PageSizes.A4);
page.Content().Text("This is a specially crafted sentence with a specially chosen length for demonstration of the bug that occurs ;;;;;. ").FontSize(11).BackgroundColor(Colors.Red.Lighten3);
});
});
}
[Test]
public void EmptyText()
{
// issue 135
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.Size(PageSizes.A4);
page.Content().Text(" ").FontSize(11).BackgroundColor(Colors.Red.Lighten3);
});
});
}
[Test]
public void Whitespaces()
{
// issue 135
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.Size(PageSizes.A4);
page.Content().Text(" x ").FontSize(11).BackgroundColor(Colors.Red.Lighten3);
});
});
}
[Test]
public void DrawingNullTextShouldNotThrowException()
{
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.Size(PageSizes.A4);
page.Content().Column(column =>
{
column.Item().Text((string) null);
column.Item().Text(text =>
{
text.Span(null);
text.Line(null);
text.Hyperlink(null, "http://www.questpdf.com");
text.TotalPages().Format(x => null);
});
});
});
});
}
[Test]
public void BreakingLongWord()
{
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.Size(PageSizes.A4);
page.Content().Column(column =>
{
column.Item().Text((string) null);
column.Item().Text(text =>
{
text.DefaultTextStyle(x => x.BackgroundColor(Colors.Red.Lighten3).FontSize(24));
text.Span(" " + Placeholders.LoremIpsum());
text.Span(" 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 ").WrapAnywhere();
});
});
});
});
}
[Test]
public void TextShaping_Unicode()
{
RenderingTest
.Create()
.PageSize(600, 100)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(35)
.MinimalBox()
.Background(Colors.Grey.Lighten2)
.Text(text =>
{
text.DefaultTextStyle(TextStyle.Default.FontSize(20));
text.Span("Complex Unicode structure: ");
text.Span("T̶̖̔͆͆̽̔ḩ̷̼̫̐̈́̀͜͝͝ì̶͇̤͓̱̣͇͓͉̎s̵̡̟̹͍̜͉̗̾͛̈̐́͋͂͝͠ͅ ̴̨͙͍͇̭̒͗̀́͝ì̷̡̺͉̼̏̏̉̌͝s̷͍͙̗̰̖͙̈̑̂̔͑͊̌̓̊̇͜ ̶̛̼͚͊̅͘ṭ̷̨̘̣̙̖͉͌̏̂̅͑̄̽̕͝ȅ̶̲̲̙̭͈̬̣͔̝͔̈́͝s̸̢̯̪̫͓̭̮̓̀͆͜ț̸̢͉̞̥̤̏̌̓͝").FontFamily(Fonts.Calibri).FontColor(Colors.Red.Medium);
text.Span(".");
});
});
}
[Test]
public void TextShaping_Arabic()
{
RenderingTest
.Create()
.PageSize(250, 100)
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(25)
.MinimalBox()
.Background(Colors.Grey.Lighten2)
.Text("خوارزمية ترتيب")
.FontFamily(Fonts.Calibri)
.FontSize(30);
});
}
[Test]
public void FontFallback()
{
RenderingTest
.Create()
.ProduceImages()
.ShowResults()
.RenderDocument(container =>
{
container.Page(page =>
{
page.Margin(50);
page.PageColor(Colors.White);
page.DefaultTextStyle(x => x
.Fallback(y => y.FontFamily("Segoe UI Emoji")
.Fallback(y => y.FontFamily("Microsoft YaHei"))));
page.Size(PageSizes.A4);
page.Content().Text(t =>
{
t.Line("This is normal text.");
t.EmptyLine();
t.Line("Following line should use font fallback:");
t.Line("中文文本");
t.EmptyLine();
t.Line("The following line contains a mix of known and unknown characters.");
t.Line("Mixed line: This 中文 is 文文 a mixed 本 本 line 本 中文文本!");
t.EmptyLine();
t.Line("Emojis work out of the box because of font fallback: 😊😅🥳👍❤😍👌");
});
});
});
}
[Test]
public void WordWrappingStability()
{
// instruction: check if any characters repeat when performing the word-wrapping algorithm
RenderingTest
.Create()
.PageSize(PageSizes.A4)
.ProducePdf()
.ShowResults()
.Render(container =>
{
var text = "Lorem ipsum dolor sit amet consectetuer";
container
.Padding(20)
.Column(column =>
{
column.Spacing(10);
foreach (var width in Enumerable.Range(25, 200))
{
column
.Item()
.MaxWidth(width)
.Background(Colors.Grey.Lighten3)
.Text(text);
}
});
});
}
[Test]
public void AdvancedLanguagesSupport()
{
RenderingTest
.Create()
.PageSize(new PageSize(400, 400))
.ProduceImages()
.ShowResults()
.Render(container =>
{
var text = "في المعلوماتية أو الرياضيات، خوارزمية الترتيب هي خوارزمية تمكن من تنظيم مجموعة عناصر حسب ترتيب محدد.";
container
.Padding(20)
.ContentFromRightToLeft()
.Text(text)
.FontFamily(Fonts.Calibri)
.FontSize(22);
});
}
[Test]
public void WordWrappingWhenRightToLeft()
{
RenderingTest
.Create()
.PageSize(new PageSize(1000, 500))
.ProducePdf()
.ShowResults()
.Render(container =>
{
var text = "في المعلوماتية أو الرياضيات، خوارزمية الترتيب هي خوارزمية تمكن من تنظيم مجموعة عناصر حسب ترتيب محدد.";
container
.Padding(25)
.ContentFromRightToLeft()
.Column(column =>
{
column.Spacing(20);
foreach (var size in new[] { 36, 34, 32, 30, 15 })
{
column
.Item()
.ShowEntire()
.MaxWidth(size * 25)
.Background(Colors.Grey.Lighten3)
.MinimalBox()
.Background(Colors.Grey.Lighten2)
.Text(text)
.FontSize(20)
.FontFamily("Segoe UI");
}
});
});
}
[Test]
public void ForcingTextDirection()
{
RenderingTest
.Create()
.PageSize(new PageSize(1000, 500))
.ProduceImages()
.ShowResults()
.Render(container =>
{
container
.Padding(10)
.DefaultTextStyle(x => x.FontSize(24).FontFamily("Calibri"))
.Column(column =>
{
column.Spacing(10);
var word = "الجوريتم";
var definition = "algorithm in Arabic";
var text = $"{word} - {definition}";
// text direction is automatically detected using the first word
column.Item().Text(text);
// it is possible to force specific content direction
column.Item().Text(text).DirectionFromLeftToRight();
column.Item().Text(text).DirectionFromRightToLeft();
// to combine text in various content directions, split it into segments
column.Item().Text(text =>
{
text.Span(word);
text.Span(" - ");
text.Span(definition);
});
});
});
}
}
}