pub struct Window { /* private fields */ }
Expand description
Window that serves as a target for OpenGL rendering.
Window
is the main type of the window module.
It defines an OS window that is able to receive an OpenGL rendering.
The Window
type provides a simple interface for manipulating the window:
move, resize, show/hide, control mouse cursor, etc.
It also provides event handling through Window::poll_event
and Window::wait_event
.
Note that OpenGL experts can pass their own parameters
(antialiasing level, bits for the depth and stencil buffers, etc.) to the OpenGL context
attached to the window, with the ContextSettings
structure which is passed as an
optional argument when creating the window.
Usage example
use sfml::window::{Window, Event, Style};
// Create a new window
let mut window = Window::new((800, 600),
"SFML window",
Style::CLOSE,
&Default::default());
// Limit the framerate to 60 frames per second (this step is optional)
window.set_framerate_limit(60);
// The main loop - ends as soon as the window is closed
while window.is_open() {
// Event processing
while let Some(event) = window.poll_event() {
// Request closing for the window
if event == Event::Closed {
window.close();
}
}
// Activate the window for OpenGL rendering
window.set_active(true);
// OpenGL drawing commands go here...
// End the current frame and display its contents on screen
window.display();
}
Implementations§
source§impl Window
impl Window
sourcepub fn new<V: Into<VideoMode>, S: SfStrConv>(
mode: V,
title: S,
style: Style,
settings: &ContextSettings
) -> Window
pub fn new<V: Into<VideoMode>, S: SfStrConv>(
mode: V,
title: S,
style: Style,
settings: &ContextSettings
) -> Window
Construct a new window
This function creates the window with the size and pixel
depth defined in mode. An optional style can be passed to
customize the look and behaviour of the window (borders,
title bar, resizable, closable, …). If style contains
Style::FULLSCREEN
, then mode must be a valid video mode.
The fourth parameter is a pointer to a structure specifying advanced OpenGL context settings such as antialiasing, depth-buffer bits, etc.
Arguments
- mode - Video mode to use (defines the width, height and depth of the rendering area of the window)
- title - Title of the window
- style - Window style
- settings - Additional settings for the underlying OpenGL context
sourcepub unsafe fn from_handle(handle: Handle, settings: &ContextSettings) -> Window
pub unsafe fn from_handle(handle: Handle, settings: &ContextSettings) -> Window
Create a window from an existing platform-specific window handle
This function creates a window based on an existing platform specific window handle which has been allocated outside of SFML. This is only intended to be used in cases where you need to integrate SFML with some other windowing library.
Safety
It is the caller’s responsibility to ensure that it is called with a valid window handle.
Arguments
- handle - The handle to the platform-specific window handle to use for the window.
- settings - Additional settings for the underlying OpenGL context
sourcepub fn system_handle(&self) -> Handle
pub fn system_handle(&self) -> Handle
Get the OS-specific handle of the window.
The type of the returned handle is Handle, which is a typedef to the handle type defined by the OS. You shouldn’t need to use this function, unless you have very specific stuff to implement that SFML doesn’t support, or implement a temporary workaround until a bug is fixed.
sourcepub fn poll_event(&mut self) -> Option<Event>
pub fn poll_event(&mut self) -> Option<Event>
Pop the event on top of event queue, if any, and return it
This function is not blocking: if there’s no pending event then
it will return None
.
Note that more than one event may be present in the event queue,
thus you should always call this function in a loop
to make sure that you process every pending event.
Returns Some(event)
if an event was returned, or None
if the event queue was empty
sourcepub fn wait_event(&mut self) -> Option<Event>
pub fn wait_event(&mut self) -> Option<Event>
Wait for an event and return it
This function is blocking: if there’s no pending event then it will wait until an event is received.
This function is typically used when you have a thread that is dedicated to events handling: you want to make this thread sleep as long as no new event is received.
Returns Some(event)
or None
if an error has occured
sourcepub unsafe fn set_icon(&mut self, width: u32, height: u32, pixels: &[u8])
pub unsafe fn set_icon(&mut self, width: u32, height: u32, pixels: &[u8])
Change a window’s icon pixels must be an array of width x height pixels in 32-bits RGBA format.
Arguments
- width - Icon’s width, in pixels
- height - Icon’s height, in pixels
- pixels - Vector of pixels
Safety
pixels
not being at least width * height * 4
will likely cause undefined behavior.
Platform-specific behavior is also unclear (limits on max size, etc).
sourcepub fn close(&mut self)
pub fn close(&mut self)
Close a window and destroy all the attached resources
After calling this method, the Window object remains
valid.
All other functions such as Window::poll_event
or Window::display
will still work (i.e. you don’t have to test Window::is_open
every time), and will have no effect on closed windows.
sourcepub fn is_open(&self) -> bool
pub fn is_open(&self) -> bool
Tell whether or not a window is opened
This function returns whether or not the window exists.
Note that a hidden window (set_visible(false)
) will return
true.
sourcepub fn settings(&self) -> &ContextSettings
pub fn settings(&self) -> &ContextSettings
Get the settings of the OpenGL context of a window
Note that these settings may be different from what was
passed to the Window::new
function,
if one or more settings were not supported. In this case,
SFML chose the closest match.
Return a structure containing the OpenGL context settings
sourcepub fn set_visible(&mut self, visible: bool)
pub fn set_visible(&mut self, visible: bool)
sourcepub fn set_mouse_cursor_visible(&mut self, visible: bool)
pub fn set_mouse_cursor_visible(&mut self, visible: bool)
sourcepub fn set_mouse_cursor_grabbed(&mut self, grabbed: bool)
pub fn set_mouse_cursor_grabbed(&mut self, grabbed: bool)
Grab or release the mouse cursor.
If set, grabs the mouse cursor inside this window’s client area so it may no longer be moved outside its bounds. Note that grabbing is only active while the window has focus.
sourcepub fn set_vertical_sync_enabled(&mut self, enabled: bool)
pub fn set_vertical_sync_enabled(&mut self, enabled: bool)
Enable or disable vertical synchronization
Activating vertical synchronization will limit the number of frames displayed to the refresh rate of the monitor. This can avoid some visual artifacts, and limit the framerate to a good value (but not constant across different computers).
Arguments
- enabled - true to enable v-sync, false to deactivate
sourcepub fn set_key_repeat_enabled(&mut self, enabled: bool)
pub fn set_key_repeat_enabled(&mut self, enabled: bool)
Enable or disable automatic key-repeat
If key repeat is enabled, you will receive repeated
Event::KeyPressed
events while keeping a key pressed. If it is disabled,
you will only get a single event when the key is pressed.
Key repeat is enabled by default.
Arguments
- enabled - true to enable, false to disable
sourcepub fn set_active(&mut self, enabled: bool) -> bool
pub fn set_active(&mut self, enabled: bool) -> bool
Activate or deactivate a window as the current target for OpenGL rendering
A window is active only on the current thread, if you want to make it active on another thread you have to deactivate it on the previous thread first if it was active. Only one window can be active on a thread at a time, thus the window previously active (if any) automatically gets deactivated.
Arguments
- active - true to activate, false to deactivate
Return true if operation was successful, false otherwise
sourcepub fn display(&mut self)
pub fn display(&mut self)
Display on screen what has been rendered to the window so far
This function is typically called after all OpenGL rendering has been done for the current frame, in order to show it on screen.
sourcepub fn set_framerate_limit(&mut self, limit: u32)
pub fn set_framerate_limit(&mut self, limit: u32)
Limit the framerate to a maximum fixed frequency
If a limit is set, the window will use a small delay after
each call to Window::display
to ensure that the current frame
lasted long enough to match the framerate limit.
Arguments
- limit - Framerate limit, in frames per seconds (use 0 to disable limit)
sourcepub fn set_joystick_threshold(&mut self, threshold: f32)
pub fn set_joystick_threshold(&mut self, threshold: f32)
Change the joystick threshold
The joystick threshold is the value below which
no Event::JoystickMoved
event will be generated.
Arguments
- threshold - New threshold, in the range [0, 100]
sourcepub fn set_position(&mut self, position: Vector2i)
pub fn set_position(&mut self, position: Vector2i)
Change the position of a window on screen
This function only works for top-level windows (i.e. it will be ignored for windows created from the handle of a child window/control).
Arguments
- position - New position of the window, in pixels
sourcepub fn size(&self) -> Vector2u
pub fn size(&self) -> Vector2u
Get the size of the rendering region of a window
The size doesn’t include the titlebar and borders of the window.
Return the size in pixels
sourcepub fn mouse_position(&self) -> Vector2i
pub fn mouse_position(&self) -> Vector2i
Returns the current position of the mouse relative to the window.
sourcepub fn set_mouse_position(&mut self, position: Vector2i)
pub fn set_mouse_position(&mut self, position: Vector2i)
Set the current position of the mouse
This function sets the current position of the mouse cursor relative to the given window.
Arguments
- position - New position of the mouse
- relativeTo - Reference Window
sourcepub unsafe fn set_mouse_cursor(&mut self, cursor: &Cursor)
pub unsafe fn set_mouse_cursor(&mut self, cursor: &Cursor)
Set the displayed cursor to a native system cursor.
Upon window creation, the arrow cursor is used by default.
Safety
The cursor can not be destroyed while in use by the window.
sourcepub fn touch_position(&self, finger: u32) -> Vector2i
pub fn touch_position(&self, finger: u32) -> Vector2i
Returns the current position of a touch in window coordinates.
sourcepub fn has_focus(&self) -> bool
pub fn has_focus(&self) -> bool
Check whether the window has the input focus.
At any given time, only one window may have the input focus to receive input events such as keystrokes or most mouse events.
sourcepub fn request_focus(&self)
pub fn request_focus(&self)
Request the current window to be made the active foreground window.
At any given time, only one window may have the input focus to receive input events
such as keystrokes or mouse events. If a window requests focus, it only hints to the
operating system, that it would like to be focused. The operating system is free to
deny the request. This is not to be confused with Window::set_active
.