Browse Source

Image Pinch Zooming

Changelog-Added: Added pinch to zoom on images
remove-participants
Swift 2 years ago
committed by William Casarin
parent
commit
8ffa8446b6
  1. 6
      damus.xcodeproj/project.pbxproj
  2. 128
      damus/Components/ImageCarousel.swift
  3. 20
      damus/Views/ImageView.swift
  4. 33
      damus/Views/MagnificationGestureView.swift
  5. 2
      damus/Views/NoteContentView.swift
  6. 5
      damus/Views/ProfileView.swift
  7. 95
      damus/Views/ProfileZoomView.swift

6
damus.xcodeproj/project.pbxproj

@ -148,6 +148,7 @@
4CEE2B02280B39E800AB5EEF /* EventActionBar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CEE2B01280B39E800AB5EEF /* EventActionBar.swift */; };
4FE60CDD295E1C5E00105A1F /* Wallet.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4FE60CDC295E1C5E00105A1F /* Wallet.swift */; };
647D9A8D2968520300A295DE /* SideMenuView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 647D9A8C2968520300A295DE /* SideMenuView.swift */; };
6439E014296790CF0020672B /* ProfileZoomView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6439E013296790CF0020672B /* ProfileZoomView.swift */; };
64FBD06F296255C400D9D3B2 /* Theme.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64FBD06E296255C400D9D3B2 /* Theme.swift */; };
6C7DE41F2955169800E66263 /* Vault in Frameworks */ = {isa = PBXBuildFile; productRef = 6C7DE41E2955169800E66263 /* Vault */; };
7C45AE6D297352F90031D7BC /* SVGKit in Frameworks */ = {isa = PBXBuildFile; productRef = 7C45AE6C297352F90031D7BC /* SVGKit */; };
@ -356,6 +357,7 @@
4CEE2B01280B39E800AB5EEF /* EventActionBar.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EventActionBar.swift; sourceTree = "<group>"; };
4FE60CDC295E1C5E00105A1F /* Wallet.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Wallet.swift; sourceTree = "<group>"; };
647D9A8C2968520300A295DE /* SideMenuView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SideMenuView.swift; sourceTree = "<group>"; };
6439E013296790CF0020672B /* ProfileZoomView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProfileZoomView.swift; sourceTree = "<group>"; };
64FBD06E296255C400D9D3B2 /* Theme.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Theme.swift; sourceTree = "<group>"; };
7C45AE70297353390031D7BC /* KFImageModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = KFImageModel.swift; sourceTree = "<group>"; };
9609F057296E220800069BF3 /* BannerImageView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BannerImageView.swift; sourceTree = "<group>"; };
@ -514,8 +516,8 @@
4C216F33286F5ACD00040376 /* DMView.swift */,
E990020E2955F837003BBC5A /* EditMetadataView.swift */,
3169CAE4294E699400EE4006 /* Empty Views */,
4CEE2AF0280B216B00AB5EEF /* EventDetailView.swift */,
4C75EFB82804A2740006080F /* EventView.swift */,
4CEE2AF0280B216B00AB5EEF /* EventDetailView.swift */,
4C3AC79E2833115300E1F516 /* FollowButtonView.swift */,
4C3AC79C2833036D00E1F516 /* FollowingView.swift */,
4C90BD17283A9EE5008EE7EF /* LoginView.swift */,
@ -547,6 +549,7 @@
647D9A8C2968520300A295DE /* SideMenuView.swift */,
9609F057296E220800069BF3 /* BannerImageView.swift */,
4CB8838E296F781C00DC99E7 /* ReactionsView.swift */,
6439E013296790CF0020672B /* ProfileZoomView.swift */,
);
path = Views;
sourceTree = "<group>";
@ -949,6 +952,7 @@
4C5F9114283D694D0052CD1C /* FollowTarget.swift in Sources */,
4CB8838629656C8B00DC99E7 /* NIP05.swift in Sources */,
4C5C7E6A284EDE2E00A22DF5 /* SearchResultsView.swift in Sources */,
6439E014296790CF0020672B /* ProfileZoomView.swift in Sources */,
4CE6DF1627F8DEBF00C66700 /* RelayConnection.swift in Sources */,
4C3BEFD6281D995700B3DE84 /* ActionBarModel.swift in Sources */,
4C363AA428296DEE006E126D /* SearchModel.swift in Sources */,

128
damus/Components/ImageCarousel.swift

@ -64,9 +64,50 @@ struct ImageContextMenuModifier: ViewModifier {
}
}
struct ImageViewer: View {
struct ImageView: View {
let urls: [URL]
@Environment(\.presentationMode) var presentationMode
//let pubkey: String
//let profiles: Profiles
@GestureState private var scaleState: CGFloat = 1
@GestureState private var offsetState = CGSize.zero
@State private var offset = CGSize.zero
@State private var scale: CGFloat = 1
func resetStatus(){
self.offset = CGSize.zero
self.scale = 1
}
var zoomGesture: some Gesture {
MagnificationGesture()
.updating($scaleState) { currentState, gestureState, _ in
gestureState = currentState
}
.onEnded { value in
scale *= value
}
}
var dragGesture: some Gesture {
DragGesture()
.updating($offsetState) { currentState, gestureState, _ in
gestureState = currentState.translation
}.onEnded { value in
offset.height += value.translation.height
offset.width += value.translation.width
}
}
var doubleTapGesture : some Gesture {
TapGesture(count: 2).onEnded { value in
resetStatus()
}
}
private struct ImageHandler: ImageModifier {
@Binding var handler: UIImage?
@ -86,30 +127,61 @@ struct ImageViewer: View {
}
var body: some View {
TabView {
ForEach(urls, id: \.absoluteString) { url in
VStack{
Text(url.lastPathComponent)
KFAnimatedImage(url)
.configure { view in
view.framePreloadCount = 3
}
.cacheOriginalImage()
.imageModifier(ImageHandler(handler: $image))
.loadDiskFileSynchronously()
.scaleFactor(UIScreen.main.scale)
.fade(duration: 0.1)
.aspectRatio(contentMode: .fit)
.tabItem {
Text(url.absoluteString)
}
.id(url.absoluteString)
.modifier(ImageContextMenuModifier(url: url, image: image, showShareSheet: $showShareSheet))
.sheet(isPresented: $showShareSheet) {
ShareSheet(activityItems: [url])
}
ZStack(alignment: .topLeading) {
Color("DamusDarkGrey") // Or Color("DamusBlack")
.edgesIgnoringSafeArea(.all)
HStack() {
Button {
presentationMode.wrappedValue.dismiss()
} label: {
Image(systemName: "xmark")
.foregroundColor(.white)
.font(.largeTitle)
.frame(width: 40, height: 40)
.padding(20)
}
}
.zIndex(1)
VStack(alignment: .center) {
//Spacer()
//.frame(height: 120)
TabView {
ForEach(urls, id: \.absoluteString) { url in
VStack{
//Color("DamusDarkGrey")
Text(url.lastPathComponent)
.foregroundColor(Color("DamusWhite"))
KFAnimatedImage(url)
.configure { view in
view.framePreloadCount = 3
}
.cacheOriginalImage()
.imageModifier(ImageHandler(handler: $image))
.loadDiskFileSynchronously()
.scaleFactor(UIScreen.main.scale)
.fade(duration: 0.1)
.aspectRatio(contentMode: .fit)
.tabItem {
Text(url.absoluteString)
}
.id(url.absoluteString)
.modifier(ImageContextMenuModifier(url: url, image: image, showShareSheet: $showShareSheet))
.sheet(isPresented: $showShareSheet) {
ShareSheet(activityItems: [url])
}
//.padding(100)
.scaledToFit()
.scaleEffect(self.scale * scaleState)
.offset(x: offset.width + offsetState.width, y: offset.height + offsetState.height)
.gesture(SimultaneousGesture(zoomGesture, dragGesture))
.gesture(doubleTapGesture)
}.padding(.bottom, 50) // Ensure carousel appears beneath
}
}
}
}
@ -151,8 +223,8 @@ struct ImageCarousel: View {
}
}
.cornerRadius(10)
.sheet(isPresented: $open_sheet) {
ImageViewer(urls: urls)
.fullScreenCover(isPresented: $open_sheet) {
ImageView(urls: urls)
}
.frame(height: 200)
.onTapGesture {
@ -164,6 +236,6 @@ struct ImageCarousel: View {
struct ImageCarousel_Previews: PreviewProvider {
static var previews: some View {
ImageCarousel(urls: [URL(string: "https://jb55.com/red-me.jpg")!])
ImageCarousel(urls: [URL(string: "https://jb55.com/red-me.jpg")!,URL(string: "https://jb55.com/red-me.jpg")!])
}
}

20
damus/Views/ImageView.swift

@ -0,0 +1,20 @@
//
// ImageView.swift
// damus
//
// Created by user232838 on 1/5/23.
//
import SwiftUI
struct ImageView: View {
var body: some View {
Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
}
}
struct ImageView_Previews: PreviewProvider {
static var previews: some View {
ImageView()
}
}

33
damus/Views/MagnificationGestureView.swift

@ -0,0 +1,33 @@
//
// MagnificationGestureView.swift
// damus
//
// Created by user232838 on 1/5/23.
//
import SwiftUI
struct MagnificationGestureView: View {
@GestureState var magnifyBy = 1.0
var magnification: some Gesture {
MagnificationGesture()
.updating($magnifyBy) { currentState, gestureState, transaction in
gestureState = currentState
}
}
var body: some View {
Circle()
.frame(width: 100, height: 100)
.scaleEffect(magnifyBy)
.gesture(magnification)
}
}
struct MagnificationGestureView_Previews: PreviewProvider {
static var previews: some View {
MagnificationGestureView()
}
}

2
damus/Views/NoteContentView.swift

@ -53,7 +53,7 @@ func render_note_content(ev: NostrEvent, profiles: Profiles, privkey: String?) -
}
func is_image_url(_ url: URL) -> Bool {
let str = url.lastPathComponent
let str = url.lastPathComponent.lowercased()
return str.hasSuffix("png") || str.hasSuffix("jpg") || str.hasSuffix("jpeg") || str.hasSuffix("gif")
}

5
damus/Views/ProfileView.swift

@ -211,9 +211,8 @@ struct ProfileView: View {
.onTapGesture {
is_zoomed.toggle()
}
.sheet(isPresented: $is_zoomed) {
ProfilePicView(pubkey: profile.pubkey, size: zoom_size, highlight: .none, profiles: damus_state.profiles)
}
.fullScreenCover(isPresented: $is_zoomed) {
ProfileZoomView(pubkey: profile.pubkey, profiles: damus_state.profiles) }
.offset(y: -(pfp_size/2.0)) // Increase if set a frame
Spacer()

95
damus/Views/ProfileZoomView.swift

@ -0,0 +1,95 @@
//
// ProfileZoomView.swift
// damus
//
// Created by scoder1747 on 12/27/22.
//
import SwiftUI
struct ProfileZoomView: View {
@Environment(\.presentationMode) var presentationMode
let pubkey: String
let profiles: Profiles
@GestureState private var scaleState: CGFloat = 1
@GestureState private var offsetState = CGSize.zero
@State private var offset = CGSize.zero
@State private var scale: CGFloat = 1
func resetStatus(){
self.offset = CGSize.zero
self.scale = 1
}
var zoomGesture: some Gesture {
MagnificationGesture()
.updating($scaleState) { currentState, gestureState, _ in
gestureState = currentState
}
.onEnded { value in
scale *= value
}
}
var dragGesture: some Gesture {
DragGesture()
.updating($offsetState) { currentState, gestureState, _ in
gestureState = currentState.translation
}.onEnded { value in
offset.height += value.translation.height
offset.width += value.translation.width
}
}
var doubleTapGesture : some Gesture {
TapGesture(count: 2).onEnded { value in
resetStatus()
}
}
var body: some View {
ZStack(alignment: .topLeading) {
Color("DamusDarkGrey") // Or Color("DamusBlack")
.edgesIgnoringSafeArea(.all)
HStack() {
Button {
presentationMode.wrappedValue.dismiss()
} label: {
Image(systemName: "xmark")
.foregroundColor(.white)
.font(.largeTitle)
.frame(width: 40, height: 40)
.padding(20)
}
}
.zIndex(1)
VStack(alignment: .center) {
Spacer()
.frame(height: 120)
ProfilePicView(pubkey: pubkey, size: 200.0, highlight: .none, profiles: profiles)
.padding(100)
.scaledToFit()
.scaleEffect(self.scale * scaleState)
.offset(x: offset.width + offsetState.width, y: offset.height + offsetState.height)
.gesture(SimultaneousGesture(zoomGesture, dragGesture))
.gesture(doubleTapGesture)
}
}
}
}
struct ProfileZoomView_Previews: PreviewProvider {
static let pubkey = "ca48854ac6555fed8e439ebb4fa2d928410e0eef13fa41164ec45aaaa132d846"
static var previews: some View {
ProfileZoomView(
pubkey: pubkey,
profiles: make_preview_profiles(pubkey))
}
}
Loading…
Cancel
Save