Initial project import

tools/v/vlib/gg/gg.v

@@ -0,0 +1,51 @@
+// Copyright (c) 2019-2024 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
+
+module gg
+
+pub type FNCb = fn (data voidptr)
+
+// FNEvent defines the type of a function that will be called for every event
+pub type FNEvent = fn (e &Event, data voidptr)
+
+// FNEvent2 same as FNEvent with inverted arguments TODO: deprecate this, in favor of event_fn
+pub type FNEvent2 = fn (data voidptr, e &Event)
+
+// FNFail defines the type of a function that will be called when there is a fail
+pub type FNFail = fn (msg string, data voidptr)
+
+// FNKeyDown defines the type of a function that will be called for every key pressed down
+pub type FNKeyDown = fn (c KeyCode, m Modifier, data voidptr)
+
+// FNKeyUp defines the type of a function that will be called for every release of a pressed key
+pub type FNKeyUp = fn (c KeyCode, m Modifier, data voidptr)
+
+// FNMove defines the type of a function that will be called for every mouse move on the screen
+pub type FNMove = fn (x f32, y f32, data voidptr)
+
+// FNClick defines the type of a function that will be called for every mouse click
+pub type FNClick = fn (x f32, y f32, button MouseButton, data voidptr)
+
+// FNUnClick defines the type of a function that will be called every time a mouse button is released
+pub type FNUnClick = fn (x f32, y f32, button MouseButton, data voidptr)
+
+// FNChar defines the type of a function that will be called once per character
+pub type FNChar = fn (c u32, data voidptr)
+
+// FNUpdate defines the type of a function, that will be called at the start of each frame
+// with an argument `dt`, that has the passed time in seconds, since the previous update.
+pub type FNUpdate = fn (dt f32, data voidptr)
+
+pub struct PenConfig {
+pub:
+	color     Color
+	line_type PenLineType = .solid
+	thickness f32         = 1
+}
+
+@[markused]
+pub struct Size {
+pub mut:
+	width  int
+	height int
+}