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| author | 2022-02-16 17:28:04 +0700 | |
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| committer | 2022-02-16 18:19:36 +0700 | |
| commit | c6486978de7f47577c85ed18ccb28a760381d421 (patch) | |
| tree | b650601aadb75c34abb0a085c5c4de1b38d73817 /core/src/image.rs | |
| parent | ca1fcdaf1454fd3febae8e6864c9a7dec04f41b1 (diff) | |
| download | iced-c6486978de7f47577c85ed18ccb28a760381d421.tar.gz iced-c6486978de7f47577c85ed18ccb28a760381d421.tar.bz2 iced-c6486978de7f47577c85ed18ccb28a760381d421.zip | |
Rename `image` module to `content_fit` in `iced_core`
Since we are just exposing the `ContentFit` type and not the module `image` at all.
Diffstat (limited to 'core/src/image.rs')
| -rw-r--r-- | core/src/image.rs | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/core/src/image.rs b/core/src/image.rs deleted file mode 100644 index 97a9eb2c..00000000 --- a/core/src/image.rs +++ /dev/null @@ -1,119 +0,0 @@ -//! Control the fit of some content (like an image) within a space - -use crate::Size; - -/// How the image should scale to fit the bounding box of the widget -/// -/// Each variant of this enum is a strategy that can be applied for resolving -/// differences in aspect ratio and size between the image being displayed and -/// the space its being displayed in. -/// -/// For an interactive demonstration of these properties as they are implemented -/// in CSS, see [Mozilla's docs][1], or run the `tour` example -/// -/// [1]: https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit -#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq)] -pub enum ContentFit { - /// Scale as big as it can be without needing to crop or hide parts - /// - /// The image will be scaled (preserving aspect ratio) so that it just fits - /// within the window. This won't distort the image or crop/hide any edges, - /// but if the image doesn't fit perfectly, there may be whitespace on the - /// top/bottom or left/right. - /// - /// This is a great fit for when you need to display an image without losing - /// any part of it, particularly when the image itself is the focus of the - /// screen. - Contain, - - /// Scale the image to cover all of the bounding box, cropping if needed - /// - /// This doesn't distort the image, and it ensures that the widget's area is - /// completely covered, but it might crop off a bit of the edges of the - /// widget, particularly when there is a big difference between the aspect - /// ratio of the widget and the aspect ratio of the image. - /// - /// This is best for when you're using an image as a background, or to fill - /// space, and any details of the image around the edge aren't too - /// important. - Cover, - - /// Distort the image so the widget is 100% covered without cropping - /// - /// This stretches the image to fit the widget, without any whitespace or - /// cropping. However, because of the stretch, the image may look distorted - /// or elongated, particularly when there's a mismatch of aspect ratios. - Fill, - - /// Don't resize or scale the image at all - /// - /// This will not apply any transformations to the provided image, but also - /// means that unless you do the math yourself, the widget's area will not - /// be completely covered, or the image might be cropped. - /// - /// This is best for when you've sized the image yourself. - None, - - /// Scale the image down if it's too big for the space, but never scale it up - /// - /// This works much like [`Contain`](Self::Contain), except that if the - /// image would have been scaled up, it keeps its original resolution to - /// avoid the bluring that accompanies upscaling images. - ScaleDown, -} - -impl ContentFit { - /// Attempt to apply the given fit for a content size within some bounds - /// - /// The returned value is the recommended scaled size of the content. - pub fn fit(&self, content: Size, bounds: Size) -> Size { - let content_ar = content.width / content.height; - let bounds_ar = bounds.width / bounds.height; - - match self { - Self::Contain => { - if bounds_ar > content_ar { - Size { - width: content.width * bounds.height / content.height, - ..bounds - } - } else { - Size { - height: content.height * bounds.width / content.width, - ..bounds - } - } - } - Self::Cover => { - if bounds_ar < content_ar { - Size { - width: content.width * bounds.height / content.height, - ..bounds - } - } else { - Size { - height: content.height * bounds.width / content.width, - ..bounds - } - } - } - Self::Fill => bounds, - Self::None => content, - Self::ScaleDown => { - if bounds_ar > content_ar && bounds.height < content.height { - Size { - width: content.width * bounds.height / content.height, - ..bounds - } - } else if bounds.width < content.width { - Size { - height: content.height * bounds.width / content.width, - ..bounds - } - } else { - content - } - } - } - } -} |
