GTK shape support WIP (#348)

* GTK shape support

* Support for ellipsis

* Allow drawing 'outside' of current frame. Experimental.

* Correctly support Capsules (rounded rects with nil cornerSize)

* Use boundingRect.size for Path size

* Refactored GdkRGBA from AnyColorBox.ResolvedValue to be reusable

* Added 'resolveToCairo(in environment:)' extension on Color

* Create slightly lighter View type hierarchies.

Makefile

@@ -1,4 +1,4 @@
-LINKER_FLAGS := $(shell pkg-config --libs gtk+-3.0)
+LINKER_FLAGS := $(shell pkg-config --libs gtk+-3.0 gdk-3.0)
 C_FLAGS := $(shell pkg-config --cflags gtk+-3.0)
 SWIFT_LINKER_FLAGS ?= -Xlinker $(shell echo $(LINKER_FLAGS) | sed -e "s/ / -Xlinker /g" | sed -e "s/-Xlinker -Wl,-framework,/-Xlinker -framework -Xlinker /g")
 SWIFT_C_FLAGS ?= -Xcc $(shell echo $(C_FLAGS) | sed -e "s/ / -Xcc /g")

Package.swift

@@ -86,13 +86,22 @@ let package = Package(
         .brew(["gtk+3"]),
       ]
     ),
+    .systemLibrary(
+      name: "CGDK",
+      pkgConfig: "gdk-3.0",
+      providers: [
+        .apt(["libgtk+-3.0", "gtk+-3.0"]),
+        // .yum(["gtk3-devel"]),
+        .brew(["gtk+3"]),
+      ]
+    ),
     .target(
       name: "TokamakGTKCHelpers",
       dependencies: ["CGTK"]
     ),
     .target(
       name: "TokamakGTK",
-      dependencies: ["TokamakCore", "CGTK", "TokamakGTKCHelpers", "CombineShim"]
+      dependencies: ["TokamakCore", "CGTK", "CGDK", "TokamakGTKCHelpers", "CombineShim"]
     ),
     .target(
       name: "TokamakGTKDemo",

Sources/CGDK/CGDK-Bridging-Header.h

@@ -0,0 +1 @@
+#include <gdk/gdk.h>

Sources/CGDK/module.modulemap

@@ -0,0 +1,8 @@
+module CGDK {
+    header "./termios-Header.h"
+    header "./CGDK-Bridging-Header.h"
+
+    link "gdk-3"
+
+    export *
+}

Sources/CGDK/termios-Header.h

@@ -0,0 +1 @@
+#include <termios.h>