Struct SharedImage

pub struct SharedImage { /* private fields */ }

Available on crate feature use-images only.

Creates a struct holding a shared image

Implementations

impl SharedImage

pub fn load<P: AsRef<Path>>(path: P) -> Result<SharedImage, FltkError>

Loads a SharedImage from a path

Errors

Errors on non-existent path or invalid format, also errors if app::App was not initialized

Examples found in repository

examples/rounded_images.rs (line 49)

fn main() {
    let app = app::App::default().with_scheme(app::Scheme::Gleam);
    app::background(0, 0, 0);
    let image = image::SharedImage::load("screenshots/calc2.jpg")
        .unwrap()
        .as_rgb_image()
        .unwrap();

    let mut wind = window::Window::new(100, 100, 800, 400, "Hello from rust");
    let row = group::Flex::default()
        .row()
        .with_size(800, 200)
        .center_of_parent();
    for i in 1..=4 {
        let color_depth = enums::ColorDepth::from_u8(i).unwrap();
        let image = image.convert(color_depth).unwrap();
        RoundImageBox::new(100, image);
    }
    row.end();
    wind.end();
    wind.show();

    app.run().unwrap();
}

pub fn from_image<I: ImageExt>(image: &I) -> Result<SharedImage, FltkError>

Loads a SharedImage from an image

Errors

Errors on unsupported SharedImage types

Trait Implementations

impl Clone for SharedImage

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SharedImage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for SharedImage

fn drop(&mut self)

Executes the destructor for this type.

impl ImageExt for SharedImage

fn copy(&self) -> Self

Performs a deep copy of the image

fn copy_sized(&self, w: i32, h: i32) -> Self

Performs a deep copy of the image but to a new size. This will make use of the scaling algorithm when resizing.

fn draw(&mut self, arg2: i32, arg3: i32, arg4: i32, arg5: i32)

Draws the image at the presupplied coordinates and size

fn draw_ext( &mut self, arg2: i32, arg3: i32, arg4: i32, arg5: i32, cx: i32, cy: i32, )

Draws the image at the presupplied coordinates and size and offset cx, cy

fn w(&self) -> i32

Return the width of the image

fn h(&self) -> i32

Return the height of the image

fn as_image_ptr(&self) -> *mut Fl_Image

Returns a pointer of the image

unsafe fn from_image_ptr(ptr: *mut Fl_Image) -> Self

Transforms a raw image pointer to an image

fn as_rgb_data(&self) -> Vec<u8>

Returns the underlying raw rgb image data

fn as_rgb_image(&self) -> Result<RgbImage, FltkError>

Transforms the image into an RgbImage

fn scale( &mut self, width: i32, height: i32, proportional: bool, can_expand: bool, )

Scales the image

fn count(&self) -> i32

Return the count of pointers in an image (Pixmaps have more than 1, bitmaps have 0, Rgb based images have 1)

fn data_w(&self) -> i32

Gets the image’s data width

fn data_h(&self) -> i32

Gets the image’s data height

fn depth(&self) -> ColorDepth

Gets the image’s depth

fn ld(&self) -> i32

Gets the image’s line data size

fn inactive(&mut self)

Greys the image

unsafe fn delete(img: Self)

Deletes the image

fn was_deleted(&self) -> bool

Checks if the image was deleted

unsafe fn into_image<I: ImageExt>(self) -> I

Transforms an Image base into another Image

impl PartialEq for SharedImage

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for SharedImage

impl Send for SharedImage

Available on non-crate feature single-threaded only.

impl Sync for SharedImage

Available on non-crate feature single-threaded only.