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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| // | ||
| // CanvasView.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| struct CanvasView: View { | ||
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| @Binding var lines: [Line] | ||
| @Binding var selectedColor: Color | ||
| @Binding var selectedLineWidth: CGFloat | ||
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| var body: some View { | ||
| Canvas { context, size in | ||
| for line in lines { | ||
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| var path = Path() | ||
| path.addLines(line.points) | ||
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| context.stroke(path, with: .color(line.color), lineWidth: line.lineWidth) | ||
| } | ||
| }.gesture(DragGesture(minimumDistance: 0, coordinateSpace: .local).onChanged({ value in | ||
| let newLocation = value.location | ||
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| if value.translation.width + value.translation.height == 0 { | ||
| lines.append(Line(points: [newLocation], | ||
| color: selectedColor, | ||
| lineWidth: selectedLineWidth)) | ||
| } else { | ||
| let index = lines.count - 1 | ||
| lines[index].points.append(newLocation) | ||
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| } | ||
| })) | ||
| } | ||
| } | ||
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| struct CanvasView_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| CanvasView(lines: .constant([Line(points: [CGPoint(x: 1, y: 1)], | ||
| color: .black, lineWidth: 1)]), | ||
| selectedColor: .constant(.black), | ||
| selectedLineWidth: .constant(1)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| // | ||
| // ColorPicker.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| struct ColorPickerView: View { | ||
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| @Binding var selectedColor: Color | ||
| var body: some View { | ||
| ColorPicker ("Color", selection: $selectedColor) | ||
| .labelsHidden() | ||
| } | ||
| } | ||
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| struct ColorPicker_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| ColorPickerView(selectedColor: .constant(.black)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| // | ||
| // SliderView.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| struct SliderView: View { | ||
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| @Binding var selectedLineWidth: CGFloat | ||
| var body: some View { | ||
| Slider(value: $selectedLineWidth, | ||
| in: 1...10) {} | ||
| } | ||
| } | ||
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| struct SliderView_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| SliderView(selectedLineWidth: .constant(1)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // | ||
| // DrawingView.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| struct DrawingView: View { | ||
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| @State private var lines = [Line]() | ||
| @State private var selectedColor: Color = .black | ||
| @State private var selectedLineWidth: CGFloat = 1 | ||
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| var body: some View { | ||
| GeometryReader { geo in | ||
| VStack { | ||
| CanvasView(lines: $lines, | ||
| selectedColor: $selectedColor, | ||
| selectedLineWidth: $selectedLineWidth) | ||
| HStack { | ||
| ColorPickerView(selectedColor: $selectedColor) | ||
| SliderView(selectedLineWidth: $selectedLineWidth) | ||
| .frame(width: geo.size.width / 2) | ||
| Text(String(format: "%.f", selectedLineWidth)) | ||
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| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| struct DrawingView_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| DrawingView() | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // | ||
| // Line.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| struct Line { | ||
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| var points: [CGPoint] | ||
| var color: Color | ||
| var lineWidth: CGFloat | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| // | ||
| // ScreenSizes.swift | ||
| // SwiftUICanvas | ||
| // | ||
| // Created by Egemen TÜRK on 28.01.2023. | ||
| // | ||
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| import SwiftUI | ||
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| extension DrawingView { | ||
| static let screenWidth = UIScreen.main.bounds.size.width | ||
| static let screenHeight = UIScreen.main.bounds.size.height | ||
| static let screenSize = UIScreen.main.bounds.size | ||
| } |