markus / KCOM / Controls / DecodeImage.cs @ 9d5b4bc2
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using KCOM.Common; |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using System.Threading.Tasks; |
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using System.Windows; |
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using System.Windows.Controls; |
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using System.Windows.Media; |
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using System.Windows.Media.Imaging; |
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namespace KCOM.Controls |
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{ |
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// [TemplatePart(Name = PART_IMAGE, Type = typeof(Image))] |
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public class ScaleDecodeImage : System.Windows.Controls.Control |
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{ |
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// private const string PART_IMAGE = "PART_IMAGE"; |
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//private Image ImageControl; |
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private List<ScaleImage> scaleImages = new List<ScaleImage>(); |
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public override void OnApplyTemplate() |
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{ |
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base.OnApplyTemplate(); |
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//ImageControl = GetTemplateChild(PART_IMAGE) as Image; |
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} |
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public static readonly DependencyProperty ViewSourceProperty = DependencyProperty.Register( |
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"ViewSource", typeof(ImageSource), typeof(ScaleDecodeImage)); |
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public ImageSource ViewSource |
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{ |
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get => (ImageSource)GetValue(ViewSourceProperty); |
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set => SetValue(ViewSourceProperty, value); |
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} |
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public static readonly DependencyProperty SourceProperty = DependencyProperty.Register( |
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"Source", typeof(BitmapImage), typeof(ScaleDecodeImage), new PropertyMetadata(new PropertyChangedCallback(SourcePropertyChaged))); |
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public BitmapImage Source |
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{ |
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get => (BitmapImage)GetValue(SourceProperty); |
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set => SetValue(SourceProperty, value); |
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} |
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private static void SourcePropertyChaged(DependencyObject d, DependencyPropertyChangedEventArgs e) |
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{ |
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var owner = d as ScaleDecodeImage; |
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if (owner != null) |
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{ |
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if (e.NewValue != null) |
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{ |
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owner.scaleImages = new List<ScaleImage>(); |
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owner.ViewSource = (BitmapImage)e.NewValue; |
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owner.Scale = 1.0; |
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} |
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} |
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} |
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public static readonly DependencyProperty ScaleProperty = DependencyProperty.Register( |
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"Scale", typeof(double), typeof(ScaleDecodeImage), new PropertyMetadata(0.0, new PropertyChangedCallback(ScalePropertyChaged))); |
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public double Scale |
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{ |
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get => (double)GetValue(ScaleProperty); |
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set => SetValue(ScaleProperty, value); |
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} |
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private static async void ScalePropertyChaged(DependencyObject d, DependencyPropertyChangedEventArgs e) |
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{ |
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var owner = d as ScaleDecodeImage; |
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if (owner != null) |
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{ |
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var value = owner.Scale; |
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var scaleImage = owner.scaleImages.Where(x => x.Scale == value); |
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if (scaleImage.Count() > 0) |
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{ |
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owner.ViewSource = scaleImage.First().source; |
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} |
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else |
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{ |
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await owner.Dispatcher.InvokeAsync(() => |
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{ |
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if (value < 1) |
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{ |
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TransformedBitmap tb = new TransformedBitmap(); |
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tb.BeginInit(); |
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tb.Source = owner.Source; |
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tb.Transform = new ScaleTransform(value, value); |
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tb.EndInit(); |
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owner.ViewSource = tb; |
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#region 진하게 하는 부분은 해제 김태성 2019.07.10 |
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/* |
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byte[] pixels = ImageSourceHelper.CopyPixels(tb); |
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var brightness = (double)(value * 100) / (double)100 * (double)100 - 10; |
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if (brightness < 0) |
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{ |
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var pixels2 = ImageSourceHelper.SetBrightnessAndContrast((int)brightness, brightness * -1.0, pixels); |
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pixels = ImageSourceHelper.SetBrightnessAndContrastLinp((int)brightness, brightness * -1.0, pixels); |
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System.Diagnostics.Debug.WriteLine("pixels 비교 : " + pixels.SequenceEqual(pixels2)); |
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//pixels = ImageSourceHelper.SetContrast(brightness * -1.0, pixels); |
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var bmp = new WriteableBitmap(tb.PixelWidth, tb.PixelHeight, tb.DpiX, tb.DpiY, PixelFormats.Pbgra32, null); |
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bmp.WritePixels(new Int32Rect(0, 0, tb.PixelWidth, tb.PixelHeight), pixels, tb.PixelWidth * 4, 0); |
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owner.ViewSource = bmp; |
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} |
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else |
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{ |
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owner.ViewSource = tb; |
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} |
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System.Diagnostics.Debug.WriteLine($"TranFormImage Height : {tb.Height} Scale : {value} brightness : {brightness}"); |
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*/ |
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#endregion |
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owner.scaleImages.Add(new ScaleImage { Scale = value, source = owner.ViewSource }); |
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//System.Diagnostics.Debug.WriteLine($"TranFormImage Height : {tb.Height} Scale : {value} brightness : {brightness}"); |
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} |
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}); |
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} |
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} |
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} |
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} |
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public class ScaleImage |
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{ |
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public ImageSource source { get; set; } |
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public double Scale { get; set; } |
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} |
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} |