mirror of
https://github.com/QL-Win/QuickLook.git
synced 2026-02-28 01:00:17 +08:00
.
This commit is contained in:
Paddy Xu
@@ -0,0 +1,53 @@
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using System.IO;
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using System.Windows;
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using System.Windows.Media.Imaging;
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namespace QuickLook.Plugin.ImageViewer
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{
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internal static class ImageFileHelper
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{
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internal static Size GetImageSize(string path)
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{
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var ori = GetOrientationFromExif(path);
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using (var stream = File.OpenRead(path))
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{
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var decoder = BitmapDecoder.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.None);
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var frame = decoder.Frames[0];
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if (ori == ExifOrientation.Rotate90CW || ori == ExifOrientation.Rotate270CW)
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return new Size {Width = frame.PixelHeight, Height = frame.PixelWidth};
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return new Size {Width = frame.PixelWidth, Height = frame.PixelHeight};
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}
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}
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internal static ExifOrientation GetOrientationFromExif(string path)
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{
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using (var stream = File.OpenRead(path))
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{
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var decoder = BitmapDecoder.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.None);
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var frame = decoder.Frames[0];
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var orientation = ((BitmapMetadata) frame.Metadata).GetQuery(@"/app1/{ushort=0}/{ushort=274}");
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if (orientation == null)
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return ExifOrientation.Horizontal;
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return (ExifOrientation) (ushort) orientation;
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}
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}
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internal enum ExifOrientation
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{
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Horizontal = 1,
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MirrorHorizontal = 2,
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Rotate180 = 3,
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MirrorVertical = 4,
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MirrorHorizontal270CW = 5,
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Rotate90CW = 6,
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MirrorHorizontal90CW = 7,
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Rotate270CW = 8
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}
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}
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}
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@@ -0,0 +1,15 @@
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<UserControl x:Class="QuickLook.Plugin.ImageViewer.ImagePanel"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:local="clr-namespace:QuickLook.Plugin.ImageViewer"
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mc:Ignorable="d"
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d:DesignHeight="300" d:DesignWidth="300">
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<Grid>
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<ScrollViewer x:Name="viewPanel" BorderThickness="0" HorizontalScrollBarVisibility="Auto"
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VerticalScrollBarVisibility="Auto" Focusable="False">
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<Image x:Name="viewPanelImage" Stretch="None" RenderOptions.BitmapScalingMode="HighQuality" />
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</ScrollViewer>
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</Grid>
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</UserControl>
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124
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/ImagePanel.xaml.cs
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124
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/ImagePanel.xaml.cs
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@@ -0,0 +1,124 @@
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using System;
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using System.IO;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace QuickLook.Plugin.ImageViewer
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{
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/// <summary>
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/// Interaction logic for ImagePanel.xaml
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/// </summary>
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public partial class ImagePanel : UserControl
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{
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private Point? _dragInitPos;
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private double _minZoomFactor = 1d;
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private double _zoomFactor = 1d;
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public ImagePanel(string path)
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{
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InitializeComponent();
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var ori = ImageFileHelper.GetOrientationFromExif(path);
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var bitmap = new BitmapImage();
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using (var fs = File.OpenRead(path))
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{
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bitmap.BeginInit();
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bitmap.StreamSource = fs;
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bitmap.CacheOption = BitmapCacheOption.OnLoad;
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bitmap.Rotation = ori == ImageFileHelper.ExifOrientation.Rotate90CW
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? Rotation.Rotate90
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: ori == ImageFileHelper.ExifOrientation.Rotate270CW
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? Rotation.Rotate270
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: Rotation.Rotate0;
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bitmap.EndInit();
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}
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viewPanelImage.Source = bitmap;
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Loaded += (sender, e) => { ZoomToFit(); };
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viewPanel.PreviewMouseWheel += ViewPanel_PreviewMouseWheel;
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viewPanel.PreviewMouseLeftButtonDown += ViewPanel_PreviewMouseLeftButtonDown;
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viewPanel.PreviewMouseMove += ViewPanel_PreviewMouseMove;
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}
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private void ViewPanel_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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_dragInitPos = e.GetPosition(viewPanel);
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var temp = _dragInitPos.Value; // Point is a type value
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temp.Offset(viewPanel.HorizontalOffset, viewPanel.VerticalOffset);
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_dragInitPos = temp;
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}
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private void ViewPanel_PreviewMouseMove(object sender, MouseEventArgs e)
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{
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if (!_dragInitPos.HasValue)
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return;
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if (e.LeftButton == MouseButtonState.Released)
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{
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_dragInitPos = null;
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return;
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}
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e.Handled = true;
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var delta = _dragInitPos.Value - e.GetPosition(viewPanel);
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viewPanel.ScrollToHorizontalOffset(delta.X);
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viewPanel.ScrollToVerticalOffset(delta.Y);
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}
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private void ViewPanel_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
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{
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if ((Keyboard.Modifiers & ModifierKeys.Control) == 0)
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return;
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e.Handled = true;
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var newZoom = _zoomFactor + e.Delta / 120 * 0.1;
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newZoom = Math.Max(newZoom, _minZoomFactor);
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newZoom = Math.Min(newZoom, 3);
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Zoom(newZoom, false);
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}
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private void ZoomToFit()
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{
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var factor = Math.Min(viewPanel.ActualWidth / viewPanelImage.Source.Width,
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viewPanel.ActualHeight / viewPanelImage.Source.Height);
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_minZoomFactor = factor;
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Zoom(factor, true);
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}
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private void Zoom(double factor, bool fromCenter)
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{
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_zoomFactor = factor;
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var position = fromCenter
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? new Point(viewPanelImage.Source.Width / 2, viewPanelImage.Source.Height / 2)
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: Mouse.GetPosition(viewPanelImage);
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viewPanelImage.LayoutTransform = new ScaleTransform(factor, factor);
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viewPanel.InvalidateMeasure();
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// critical for calcuating offset
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viewPanel.ScrollToHorizontalOffset(0);
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viewPanel.ScrollToVerticalOffset(0);
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UpdateLayout();
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var offset = viewPanelImage.TranslatePoint(position, viewPanel) - Mouse.GetPosition(viewPanel);
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viewPanel.ScrollToHorizontalOffset(offset.X);
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viewPanel.ScrollToVerticalOffset(offset.Y);
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UpdateLayout();
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}
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}
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}
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55
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/Plugin.cs
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55
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/Plugin.cs
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@@ -0,0 +1,55 @@
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using System.IO;
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using System.Windows;
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namespace QuickLook.Plugin.ImageViewer
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{
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public class Plugin : IViewer
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{
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private Size _imageSize;
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private ImagePanel _ip;
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public int Priority => 9999;
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public bool CanHandle(string path)
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{
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// TODO: determine file type by content
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if (Directory.Exists(path))
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return false;
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switch (Path.GetExtension(path).ToLower())
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{
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case ".bmp":
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case ".gif":
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case ".ico":
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case ".jpg":
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case ".png":
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case ".wdp":
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case ".tiff":
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return true;
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default:
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return false;
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}
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}
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public void Prepare(string path, ViewContentContainer container)
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{
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_imageSize = ImageFileHelper.GetImageSize(path);
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container.SetPreferedSizeFit(_imageSize, 0.8);
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}
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public void View(string path, ViewContentContainer container)
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{
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_ip = new ImagePanel(path);
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container.SetContent(_ip);
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container.Title = $"{Path.GetFileName(path)} ({_imageSize.Width} × {_imageSize.Height})";
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}
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public void Close()
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{
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}
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}
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}
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@@ -0,0 +1,35 @@
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using System.Reflection;
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using System.Runtime.InteropServices;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("QuickLook.Plugin.ImageViewer")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("QuickLook.Plugin.ImageViewer")]
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[assembly: AssemblyCopyright("Copyright © 2017")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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// The following GUID is for the ID of the typelib if this project is exposed to COM
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[assembly: Guid("fe5a5111-9607-4721-a7be-422754002ed8")]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]
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@@ -0,0 +1,76 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{FE5A5111-9607-4721-A7BE-422754002ED8}</ProjectGuid>
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<OutputType>Library</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>QuickLook.Plugin.ImageViewer</RootNamespace>
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<AssemblyName>QuickLook.Plugin.ImageViewer</AssemblyName>
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<TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>..\..\Build\Debug\Plugins\QuickLook.Plugin.ImageViewer\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<PlatformTarget>x86</PlatformTarget>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>..\..\Build\Release\Plugins\QuickLook.Plugin.ImageViewer\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<PlatformTarget>x86</PlatformTarget>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="PresentationCore" />
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<Reference Include="PresentationFramework" />
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<Reference Include="System" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xaml" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Data" />
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<Reference Include="System.Net.Http" />
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<Reference Include="System.Xml" />
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<Reference Include="WindowsBase" />
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<Reference Include="WpfAnimatedGif, Version=1.4.14.0, Culture=neutral, processorArchitecture=MSIL">
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<HintPath>..\packages\WpfAnimatedGif.1.4.14\lib\net\WpfAnimatedGif.dll</HintPath>
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</Reference>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="ImageFileHelper.cs" />
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<Compile Include="ImagePanel.xaml.cs">
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<DependentUpon>ImagePanel.xaml</DependentUpon>
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</Compile>
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<Compile Include="Plugin.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\QuickLook\QuickLook.csproj">
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<Project>{8b4a9ce5-67b5-4a94-81cb-3771f688fdeb}</Project>
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<Name>QuickLook</Name>
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<Private>False</Private>
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</ProjectReference>
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</ItemGroup>
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<ItemGroup>
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<Page Include="ImagePanel.xaml">
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<SubType>Designer</SubType>
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<Generator>MSBuild:Compile</Generator>
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</Page>
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</ItemGroup>
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<ItemGroup>
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<None Include="packages.config" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>
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@@ -0,0 +1,5 @@
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<?xml version="1.0" encoding="utf-8"?>
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<packages>
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<package id="WpfAnimatedGif" version="1.4.14" targetFramework="net452" />
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</packages>
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