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util: add ImageResizer to change size of images

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This commit is contained in:
Suhail Saqan 2023-09-19 13:24:11 -07:00 committed by William Casarin
parent 41e036cff2
commit cdacbcfdca
2 changed files with 52 additions and 0 deletions
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12
damus.xcodeproj/project.pbxproj
View File

@ -415,6 +415,7 @@
9609F058296E220800069BF3 /* BannerImageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9609F057296E220800069BF3 /* BannerImageView.swift */; };
9C83F89329A937B900136C08 /* TextViewWrapper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9C83F89229A937B900136C08 /* TextViewWrapper.swift */; };
9CA876E229A00CEA0003B9A3 /* AttachMediaUtility.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9CA876E129A00CE90003B9A3 /* AttachMediaUtility.swift */; };
BA37598A2ABCCDE40018D73B /* ImageResizer.swift in Sources */ = {isa = PBXBuildFile; fileRef = BA3759892ABCCDE30018D73B /* ImageResizer.swift */; };
BA4AB0AE2A63B9270070A32A /* AddEmojiView.swift in Sources */ = {isa = PBXBuildFile; fileRef = BA4AB0AD2A63B9270070A32A /* AddEmojiView.swift */; };
BA4AB0B02A63B94D0070A32A /* EmojiListItemView.swift in Sources */ = {isa = PBXBuildFile; fileRef = BA4AB0AF2A63B94D0070A32A /* EmojiListItemView.swift */; };
BA693074295D649800ADDB87 /* UserSettingsStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = BA693073295D649800ADDB87 /* UserSettingsStore.swift */; };
@ -1094,6 +1095,7 @@
9609F057296E220800069BF3 /* BannerImageView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BannerImageView.swift; sourceTree = "<group>"; };
9C83F89229A937B900136C08 /* TextViewWrapper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextViewWrapper.swift; sourceTree = "<group>"; };
9CA876E129A00CE90003B9A3 /* AttachMediaUtility.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttachMediaUtility.swift; sourceTree = "<group>"; };
BA3759892ABCCDE30018D73B /* ImageResizer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ImageResizer.swift; sourceTree = "<group>"; };
BA4AB0AD2A63B9270070A32A /* AddEmojiView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddEmojiView.swift; sourceTree = "<group>"; };
BA4AB0AF2A63B94D0070A32A /* EmojiListItemView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EmojiListItemView.swift; sourceTree = "<group>"; };
BA693073295D649800ADDB87 /* UserSettingsStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserSettingsStore.swift; sourceTree = "<group>"; };
@ -1239,6 +1241,7 @@
4C0A3F8D280F63FF000448DE /* Models */ = {
isa = PBXGroup;
children = (
BA3759882ABCCDE30018D73B /* Camera */,
4C190F1E2A535FC200027FD5 /* Zaps */,
4C54AA0829A55416003E4487 /* Notifications */,
3AA247FC297E3CFF0090C62D /* RepostsModel.swift */,
@ -2251,6 +2254,14 @@
path = Extensions;
sourceTree = "<group>";
};
BA3759882ABCCDE30018D73B /* Camera */ = {
isa = PBXGroup;
children = (
BA3759892ABCCDE30018D73B /* ImageResizer.swift */,
);
path = Camera;
sourceTree = "<group>";
};
F71694E82A66221E001F4053 /* Onboarding */ = {
isa = PBXGroup;
children = (
@ -2794,6 +2805,7 @@
4C3BEFDA281DCA1400B3DE84 /* LikeCounter.swift in Sources */,
4C32B9502A9AD44700DC3548 /* FlatBufferBuilder.swift in Sources */,
50A60D142A28BEEE00186190 /* RelayLog.swift in Sources */,
BA37598A2ABCCDE40018D73B /* ImageResizer.swift in Sources */,
4CB88389296AF99A00DC99E7 /* EventDetailBar.swift in Sources */,
4C32B9512A9AD44700DC3548 /* FlatbuffersErrors.swift in Sources */,
4CE8794E2996B16A00F758CC /* RelayToggle.swift in Sources */,

40
damus/Models/Camera/ImageResizer.swift Normal file
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@ -0,0 +1,40 @@
//
// ImageResizer.swift
// damus
//
// Created by Suhail Saqan on 8/5/23.
//
import Foundation
import UIKit
public enum ImageResizingError: Error {
case cannotRetrieveFromURL
case cannotRetrieveFromData
}
public struct ImageResizer {
public var targetWidth: CGFloat
public init(targetWidth: CGFloat) {
self.targetWidth = targetWidth
}
public func resize(at url: URL) -> UIImage? {
guard let image = UIImage(contentsOfFile: url.path) else {
return nil
}
return self.resize(image: image)
}
public func resize(image: UIImage) -> UIImage {
let originalSize = image.size
let targetSize = CGSize(width: targetWidth, height: targetWidth*originalSize.height/originalSize.width)
let renderer = UIGraphicsImageRenderer(size: targetSize)
return renderer.image { (context) in
image.draw(in: CGRect(origin: .zero, size: targetSize))
}
}
}