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glfw: add glfw.Window.getMouseButton

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2021-10-23 13:06:18 -07:00 • committed by Stephen Gutekanst
parent 9aaa8702a8
commit 77e9396888
1 changed files with 37 additions and 22 deletions
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59
glfw/src/Window.zig
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@ -1414,28 +1414,27 @@ pub inline fn setContentScaleCallback(self: Window, callback: ?fn (window: Windo
// /// see also: input_key
// GLFWAPI int glfwGetKey(GLFWwindow* window, int key);
// TODO(mouse button)
// /// Returns the last reported state of a mouse button for the specified
// /// window.
// ///
// /// This function returns the last state reported for the specified mouse button
// /// to the specified window. The returned state is one of `glfw.press` or
// /// `glfw.release`.
// ///
// /// If the @ref GLFW_STICKY_MOUSE_BUTTONS input mode is enabled, this function
// /// returns `glfw.press` the first time you call it for a mouse button that was
// /// pressed, even if that mouse button has already been released.
// ///
// /// @param[in] window The desired window.
// /// @param[in] button The desired mouse button.
// /// @return One of `glfw.press` or `glfw.release`.
// ///
// /// Possible errors include glfw.Error.NotInitialized and glfw.Error.InvalidEnum.
// ///
// /// @thread_safety This function must only be called from the main thread.
// ///
// /// see also: input_mouse_button
// GLFWAPI int glfwGetMouseButton(GLFWwindow* window, int button);
/// Returns the last reported state of a mouse button for the specified window.
///
/// This function returns whether the specified mouse button is pressed or not.
///
/// If the glfw.sticky_mouse_buttons input mode is enabled, this function returns `true` the first
/// time you call it for a mouse button that was pressed, even if that mouse button has already been
/// released.
///
/// @param[in] button The desired mouse button.
/// @return One of `true` (if pressed) or `false` (if released)
///
/// Possible errors include glfw.Error.NotInitialized and glfw.Error.InvalidEnum.
///
/// @thread_safety This function must only be called from the main thread.
///
/// see also: input_mouse_button
pub inline fn getMouseButton(self: Window, button: isize) Error!bool {
const state = c.glfwGetMouseButton(self.handle, @intCast(c_int, button));
try getError();
return state == c.GLFW_PRESS;
}
const CursorPos = struct {
xpos: f64,
@ -2563,6 +2562,22 @@ test "setDropCallback" {
}).callback) catch |err| std.debug.print("can't set window drop callback, not supported by OS maybe? error={}\n", .{err});
}
test "getMouseButton" {
const glfw = @import("main.zig");
try glfw.init();
defer glfw.terminate();
const window = glfw.Window.create(640, 480, "Hello, Zig!", null, null) catch |err| {
// return without fail, because most of our CI environments are headless / we cannot open
// windows on them.
std.debug.print("note: failed to create window: {}\n", .{err});
return;
};
defer window.destroy();
_ = window.getMouseButton(glfw.mouse_button.left) catch |err| std.debug.print("failed to get mouse button, not supported? error={}\n", .{err});
}
test "getCursorPos" {
const glfw = @import("main.zig");
try glfw.init();