pkg/macos: path

pkg/macos/graphics.zig

@@ -4,6 +4,7 @@ pub usingnamespace @import("graphics/bitmap_context.zig");
 pub usingnamespace @import("graphics/color_space.zig");
 pub usingnamespace @import("graphics/font.zig");
 pub usingnamespace @import("graphics/geometry.zig");
+pub usingnamespace @import("graphics/path.zig");
 
 test {
     @import("std").testing.refAllDecls(@This());

pkg/macos/graphics/geometry.zig

@@ -13,6 +13,10 @@ pub const Rect = extern struct {
     origin: Point,
     size: Size,
 
+    pub fn init(x: f64, y: f64, width: f64, height: f64) Rect {
+        return @bitCast(Rect, c.CGRectMake(x, y, width, height));
+    }
+
     pub fn cval(self: Rect) c.struct_CGRect {
         return @bitCast(c.struct_CGRect, self);
     }

pkg/macos/graphics/path.zig

@@ -0,0 +1,64 @@
+const std = @import("std");
+const assert = std.debug.assert;
+const Allocator = std.mem.Allocator;
+const foundation = @import("../foundation.zig");
+const graphics = @import("../graphics.zig");
+const c = @import("c.zig");
+
+pub const Path = opaque {
+    pub fn createWithRect(
+        rect: graphics.Rect,
+        transform: ?*const graphics.AffineTransform,
+    ) Allocator.Error!*Path {
+        return @intToPtr(
+            ?*Path,
+            @ptrToInt(c.CGPathCreateWithRect(
+                rect.cval(),
+                @ptrCast(?[*]const c.struct_CGAffineTransform, transform),
+            )),
+        ) orelse Allocator.Error.OutOfMemory;
+    }
+
+    pub fn release(self: *Path) void {
+        foundation.CFRelease(self);
+    }
+};
+
+pub const MutablePath = opaque {
+    pub fn create() Allocator.Error!*MutablePath {
+        return @intToPtr(
+            ?*MutablePath,
+            @ptrToInt(c.CGPathCreateMutable()),
+        ) orelse Allocator.Error.OutOfMemory;
+    }
+
+    pub fn release(self: *MutablePath) void {
+        foundation.CFRelease(self);
+    }
+
+    pub fn addRect(
+        self: *MutablePath,
+        transform: ?*const graphics.AffineTransform,
+        rect: graphics.Rect,
+    ) void {
+        c.CGPathAddRect(
+            @ptrCast(c.CGMutablePathRef, self),
+            @ptrCast(?[*]const c.struct_CGAffineTransform, transform),
+            rect.cval(),
+        );
+    }
+};
+
+test "mutable path" {
+    //const testing = std.testing;
+
+    const path = try MutablePath.create();
+    defer path.release();
+
+    path.addRect(null, graphics.Rect.init(0, 0, 100, 200));
+}
+
+test "path from rect" {
+    const path = try Path.createWithRect(graphics.Rect.init(0, 0, 100, 200), null);
+    defer path.release();
+}