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glfw: add Window.getAttrib

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2021-10-17 22:48:41 -07:00 • committed by Stephen Gutekanst
parent ceec340d95
commit cc9dccf5a1
1 changed files with 42 additions and 26 deletions
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68
src/Window.zig
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@ -1006,33 +1006,33 @@ pub inline fn setMonitor(self: Window, monitor: ?Monitor, xpos: isize, ypos: isi
try getError(); try getError();
} }
// TODO(window): /// Returns an attribute of the specified window.
///
/// This function returns the value of an attribute of the specified window or its OpenGL or OpenGL
/// ES context.
///
/// @param[in] window The window to query.
/// @param[in] attrib The window attribute (see window_attribs) whose value to return.
/// @return The value of the attribute, or zero if an error occurred.
///
/// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError.
///
/// Framebuffer related hints are not window attributes. See window_attribs_fb for more information.
///
/// Zero is a valid value for many window and context related attributes so you cannot use a return
/// value of zero as an indication of errors. However, this function should not fail as long as it
/// is passed valid arguments and the library has been initialized.
///
/// @thread_safety This function must only be called from the main thread.
///
/// see also: window_attribs, glfw.Window.setAttrib
pub inline fn getAttrib(self: Window, attrib: isize) Error!isize {
const v = c.glfwGetWindowAttrib(self.handle, @intCast(c_int, attrib));
try getError();
return v;
}
// /// Returns an attribute of the specified window. // TODO(window):
// ///
// /// This function returns the value of an attribute of the specified window or
// /// its OpenGL or OpenGL ES context.
// ///
// /// @param[in] window The window to query.
// /// @param[in] attrib The [window attribute](@ref window_attribs) whose value to
// /// return.
// /// @return The value of the attribute, or zero if an
// /// error occurred.
// ///
// /// Possible errors include glfw.Error.NotInitialized, glfw.Error.InvalidEnum and glfw.Error.PlatformError.
// ///
// /// Framebuffer related hints are not window attributes. See @ref
// /// window_attribs_fb for more information.
// ///
// /// Zero is a valid value for many window and context related
// /// attributes so you cannot use a return value of zero as an indication of
// /// errors. However, this function should not fail as long as it is passed
// /// valid arguments and the library has been [initialized](@ref intro_init).
// ///
// /// @thread_safety This function must only be called from the main thread.
// ///
// /// see also: window_attribs, glfw.Window.setAttrib
// GLFWAPI int glfwGetWindowAttrib(GLFWwindow* window, int attrib);
// /// Sets an attribute of the specified window. // /// Sets an attribute of the specified window.
// /// // ///
@ -1833,3 +1833,19 @@ test "setMonitor" {
window.setMonitor(null, 10, 10, 640, 480, 60) catch |err| std.debug.print("can't set monitor, not supported by OS maybe? error={}\n", .{err}); window.setMonitor(null, 10, 10, 640, 480, 60) catch |err| std.debug.print("can't set monitor, not supported by OS maybe? error={}\n", .{err});
} }
test "getAttrib" {
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.getAttrib(glfw.focused) catch |err| std.debug.print("can't check if window is focused, not supported by OS maybe? error={}\n", .{err});
}