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glfw: add Window.setPos

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2021-07-23 14:08:42 -07:00
parent a690b84732
commit 403070ac2a
1 changed files with 41 additions and 0 deletions
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41
glfw/src/Window.zig
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@ -349,6 +349,31 @@ pub inline fn getPos(self: Window) Error!Pos {
return Pos{ .x = @intCast(usize, x), .y = @intCast(usize, y) };
}
/// Sets the position of the content area of the specified window.
///
/// This function sets the position, in screen coordinates, of the upper-left corner of the content
/// area of the specified windowed mode window. If the window is a full screen window, this
/// function does nothing.
///
/// __Do not use this function__ to move an already visible window unless you have very good
/// reasons for doing so, as it will confuse and annoy the user.
///
/// The window manager may put limits on what positions are allowed. GLFW cannot and should not
/// override these limits.
///
/// Possible errors include glfw.Error.NotInitialized and glfw.Error.PlatformError.
///
/// wayland: There is no way for an application to set the global position of its windows, this
/// function will always emit glfw.Error.PlatformError.
///
/// @thread_safety This function must only be called from the main thread.
///
/// see also: window_pos, glfw.Window.getPos
pub inline fn setPos(self: Window, pos: Pos) Error!void {
c.glfwSetWindowPos(self.handle, @intCast(c_int, pos.x), @intCast(c_int, pos.y));
try getError();
}
test "defaultHints" {
const glfw = @import("main.zig");
try glfw.init();
@ -467,3 +492,19 @@ test "getPos" {
_ = window.getPos() catch |err| std.debug.print("can't get window position, wayland maybe? error={}\n", .{err});
}
test "setPos" {
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.setPos(.{ .x = 0, .y = 0 }) catch |err| std.debug.print("can't set window position, wayland maybe? error={}\n", .{err});
}