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glfw: make mouse buttons a proper enum

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Helps hexops/mach#37

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2021-10-30 15:35:04 -07:00 • committed by Stephen Gutekanst
parent 4d1b92666b
commit 7806709a90
2 changed files with 28 additions and 25 deletions
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37
glfw/src/mouse_button.zig
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@ -1,20 +1,23 @@
//! Mouse button IDs.
//!
//! See glfw.setMouseButtonCallback for how these are used.
const c = @import("c.zig").c;
// TODO(enumify)
pub const one = c.GLFW_MOUSE_BUTTON_1;
pub const two = c.GLFW_MOUSE_BUTTON_2;
pub const three = c.GLFW_MOUSE_BUTTON_3;
pub const four = c.GLFW_MOUSE_BUTTON_4;
pub const five = c.GLFW_MOUSE_BUTTON_5;
pub const six = c.GLFW_MOUSE_BUTTON_6;
pub const seven = c.GLFW_MOUSE_BUTTON_7;
pub const eight = c.GLFW_MOUSE_BUTTON_8;
/// Mouse button IDs.
///
/// See glfw.setMouseButtonCallback for how these are used.
pub const MouseButton = enum(c_int) {
// We use left/right/middle aliases here because those are more common and we cannot have
// duplicate values in a Zig enum.
left = c.GLFW_MOUSE_BUTTON_1,
right = c.GLFW_MOUSE_BUTTON_2,
middle = c.GLFW_MOUSE_BUTTON_3,
four = c.GLFW_MOUSE_BUTTON_4,
five = c.GLFW_MOUSE_BUTTON_5,
six = c.GLFW_MOUSE_BUTTON_6,
seven = c.GLFW_MOUSE_BUTTON_7,
eight = c.GLFW_MOUSE_BUTTON_8,
};
pub const last = eight;
pub const left = one;
pub const right = two;
pub const middle = three;
/// Not in the MouseButton enumeration as it is a duplicate value which is forbidden.
pub const last = MouseButton.eight;
pub const one = MouseButton.left;
pub const two = MouseButton.right;
pub const three = MouseButton.middle;