feat: add external drawing boxes and paged callbacks

2026-08-31 22:10:06 +02:00
parent 3e5f197bdb
commit e2e2bfb854
10 changed files with 534 additions and 25 deletions
@@ -55,6 +55,75 @@ public sealed class TemplatingTests : IDisposable
        Assert.True(System.Text.RegularExpressions.Regex.Matches(source, @"/Type\s*/Page\b").Count > 1);
    }

+    [Fact]
+    public void DrawBox_RendertDeklarativeExterneZeichenbefehleInFesterBox()
+    {
+        var template = new LoadedTemplate(new TemplateManifest
+        {
+            Placeholders = [new("Grafik", PlaceholderType.Drawing, true)],
+        }, new LayoutParser().Parse("PAGE 210 297 mm\nDRAWBOX 20 20 100 60 $Grafik"),
+            new Dictionary<string, byte[]>());
+        var drawing = new DrawingValue(
+            [new DrawRectangle(0, 0, 100, 60, "#1D4ED8", 1, "#EFF6FF"),
+             new DrawString(5, 5, "Externer Inhalt", 11, Bold: true),
+             new MoveTo(5, 25), new LineTo(95, 25, "#DC2626", 1.5f),
+             new DrawLine(5, 35, 95, 50, "#059669", 1)], 60);
+
+        var pdf = new QuestTemplateRenderer().RenderToPdf(template,
+            new DictionaryProvider(new Dictionary<string, PlaceholderValue> { ["Grafik"] = drawing }));
+
+        Assert.Single(System.Text.RegularExpressions.Regex.Matches(
+            System.Text.Encoding.ASCII.GetString(pdf), @"/Type\s*/Page\b"));
+    }
+
+    [Fact]
+    public void FlowDrawBox_PaginertHohenDeklarativenZeichenraum()
+    {
+        var template = new LoadedTemplate(new TemplateManifest
+        {
+            Placeholders = [new("Protokoll", PlaceholderType.Drawing, true)],
+        }, new LayoutParser().Parse("PAGE 210 297 mm\nFLOWDRAWBOX 20 20 170 257 $Protokoll"),
+            new Dictionary<string, byte[]>());
+        var drawing = new DrawingValue(
+            Enumerable.Range(0, 80).SelectMany(i => (DrawingCommand[])
+                [new DrawString(0, i * 10, $"Zeile {i + 1}", 8), new DrawLine(0, i * 10 + 9, 160, i * 10 + 9, "#CBD5E1", .3f)])
+                .ToList(), 800);
+
+        var pdf = new QuestTemplateRenderer().RenderToPdf(template,
+            new DictionaryProvider(new Dictionary<string, PlaceholderValue> { ["Protokoll"] = drawing }));
+
+        Assert.True(System.Text.RegularExpressions.Regex.Matches(
+            System.Text.Encoding.ASCII.GetString(pdf), @"/Type\s*/Page\b").Count >= 4);
+    }
+
+    [Fact]
+    public void FlowDrawBox_CallbackErhaeltSeitenflaecheStateUndSteuertSeitenwechsel()
+    {
+        var template = new LoadedTemplate(new TemplateManifest
+        {
+            Placeholders = [new("Bericht", PlaceholderType.Drawing, true)],
+        }, new LayoutParser().Parse("PAGE 210 297 mm\nFLOWDRAWBOX 20 20 170 257 $Bericht"),
+            new Dictionary<string, byte[]>());
+        var invocations = 0;
+        var drawing = new PagedDrawingValue(context =>
+        {
+            invocations++;
+            var item = context.State is int value ? value : 0;
+            context.Canvas.DrawRectangle(0, 0, context.Width, 20, "#1D4ED8", .5f, "#EFF6FF");
+            context.Canvas.DrawStringEx(0, 2, 14, context.Width, $"Untrennbarer Block {item + 1}",
+                DrawingTextAlignment.AlignCenter, 11, "Arial", "#1E3A8A", bold: true);
+            context.State = item + 1;
+            return context.PageNumber == 3;
+        }, InitialState: 0);
+
+        var pdf = new QuestTemplateRenderer().RenderToPdf(template,
+            new DictionaryProvider(new Dictionary<string, PlaceholderValue> { ["Bericht"] = drawing }));
+
+        Assert.Equal(3, invocations);
+        Assert.Equal(3, System.Text.RegularExpressions.Regex.Matches(
+            System.Text.Encoding.ASCII.GetString(pdf), @"/Type\s*/Page\b").Count);
+    }
+
    [Theory]
    [InlineData("scale=0%")]
    [InlineData("scale=-10%")]