This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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94 lines
4.0 KiB
94 lines
4.0 KiB
/* |
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* Copyright (c) 2013-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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* |
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*/ |
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#import <UIKit/UIKit.h> |
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#import <React/RCTDefines.h> |
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#import <React/RCTResizeMode.h> |
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NS_ASSUME_NONNULL_BEGIN |
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/** |
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* This function takes an source size (typically from an image), a target size |
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* and scale that it will be drawn at (typically in a CGContext) and then |
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* calculates the rectangle to draw the image into so that it will be sized and |
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* positioned correctly according to the specified resizeMode. |
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*/ |
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RCT_EXTERN CGRect RCTTargetRect(CGSize sourceSize, CGSize destSize, |
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CGFloat destScale, RCTResizeMode resizeMode); |
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/** |
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* This function takes a source size (typically from an image), a target rect |
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* that it will be drawn into (typically relative to a CGContext), and works out |
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* the transform needed to draw the image at the correct scale and position. |
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*/ |
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RCT_EXTERN CGAffineTransform RCTTransformFromTargetRect(CGSize sourceSize, |
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CGRect targetRect); |
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/** |
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* This function takes an input content size & scale (typically from an image), |
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* a target size & scale at which it will be displayed (typically in a |
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* UIImageView) and then calculates the optimal size at which to redraw the |
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* image so that it will be displayed correctly with the specified resizeMode. |
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*/ |
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RCT_EXTERN CGSize RCTTargetSize(CGSize sourceSize, CGFloat sourceScale, |
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CGSize destSize, CGFloat destScale, |
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RCTResizeMode resizeMode, BOOL allowUpscaling); |
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/** |
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* This function takes an input content size & scale (typically from an image), |
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* a target size & scale that it will be displayed at, and determines if the |
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* source will need to be upscaled to fit (which may result in pixelization). |
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*/ |
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RCT_EXTERN BOOL RCTUpscalingRequired(CGSize sourceSize, CGFloat sourceScale, |
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CGSize destSize, CGFloat destScale, |
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RCTResizeMode resizeMode); |
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/** |
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* This function takes the source data for an image and decodes it at the |
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* specified size. If the original image is smaller than the destination size, |
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* the resultant image's scale will be decreased to compensate, so the |
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* width/height of the returned image is guaranteed to be >= destSize. |
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* Pass a destSize of CGSizeZero to decode the image at its original size. |
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*/ |
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RCT_EXTERN UIImage *__nullable RCTDecodeImageWithData(NSData *data, |
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CGSize destSize, |
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CGFloat destScale, |
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RCTResizeMode resizeMode); |
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/** |
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* This function takes the source data for an image and decodes just the |
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* metadata, without decompressing the image itself. |
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*/ |
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RCT_EXTERN NSDictionary<NSString *, id> *__nullable RCTGetImageMetadata(NSData *data); |
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/** |
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* Convert an image back into data. Images with an alpha channel will be |
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* converted to lossless PNG data. Images without alpha will be converted to |
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* JPEG. The `quality` argument controls the compression ratio of the JPEG |
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* conversion, with 1.0 being maximum quality. It has no effect for images |
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* using PNG compression. |
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*/ |
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RCT_EXTERN NSData *__nullable RCTGetImageData(UIImage *image, float quality); |
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/** |
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* This function transforms an image. `destSize` is the size of the final image, |
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* and `destScale` is its scale. The `transform` argument controls how the |
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* source image will be mapped to the destination image. |
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*/ |
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RCT_EXTERN UIImage *__nullable RCTTransformImage(UIImage *image, |
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CGSize destSize, |
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CGFloat destScale, |
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CGAffineTransform transform); |
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/* |
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* Return YES if image has an alpha component |
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*/ |
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RCT_EXTERN BOOL RCTImageHasAlpha(CGImageRef image); |
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NS_ASSUME_NONNULL_END
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