Заливка и замкнутая фигура

src/render/cpu/broken.zig

@@ -7,9 +7,10 @@ const Color = @import("dvui").Color;
 
 const Object = Document.Object;
 const default_stroke: Color.PMA = .{ .r = 0, .g = 0, .b = 0, .a = 255 };
+const default_fill: Color.PMA = .{ .r = 0, .g = 0, .b = 0, .a = 0 };
 const default_thickness: f32 = 2.0;
 
-/// Ломаная по точкам, обводка stroke_rgba
+/// Ломаная по точкам, обводка stroke_rgba. При closed — отрезок последняя–первая точка и заливка fill_rgba.
 pub fn draw(
     ctx: *DrawContext,
     obj: *const Object,
@@ -20,6 +21,9 @@ pub fn draw(
     if (pts.len < 2) return;
     const stroke = if (obj.getProperty(.stroke_rgba)) |s| pipeline.rgbaToPma(s.stroke_rgba) else default_stroke;
     const thickness = if (obj.getProperty(.thickness)) |t| t.thickness else default_thickness;
+    const closed = if (obj.getProperty(.closed)) |c| c.closed else false;
+    const filled = if (obj.getProperty(.filled)) |f| f.filled else true;
+    const fill_color = if (obj.getProperty(.fill_rgba)) |f| pipeline.rgbaToPma(f.fill_rgba) else default_fill;
 
     const buffer = try allocator.alloc(Color.PMA, ctx.buf_width * ctx.buf_height);
     @memset(buffer, .{ .r = 0, .g = 0, .b = 0, .a = 0 });
@@ -29,10 +33,24 @@ pub fn draw(
     copy_ctx.pixels = buffer;
     copy_ctx.replace_mode = true;
 
+    const do_fill = closed and filled;
+
+    if (do_fill) {
+        copy_ctx.startFill(allocator) catch return;
+    }
+
     var i: usize = 0;
     while (i + 1 < pts.len) : (i += 1) {
         line.drawLine(&copy_ctx, pts[i].x, pts[i].y, pts[i + 1].x, pts[i + 1].y, stroke, thickness);
     }
+    if (closed and pts.len >= 2) {
+        const last = pts.len - 1;
+        line.drawLine(&copy_ctx, pts[last].x, pts[last].y, pts[0].x, pts[0].y, stroke, thickness);
+    }
+
+    if (do_fill) {
+        copy_ctx.stopFill(allocator, fill_color);
+    }
 
     ctx.compositeDrawerContext(&copy_ctx, copy_ctx.transform.opacity);
 }