mirror of
https://github.com/QL-Win/QuickLook.git
synced 2025-09-11 17:59:17 +00:00
Code Cleanup
This commit is contained in:
ema
@@ -15,6 +15,7 @@
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using ImageMagick;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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@@ -22,172 +23,170 @@ using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows;
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using System.Xml;
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using ImageMagick;
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namespace QuickLook.Plugin.ImageViewer
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namespace QuickLook.Plugin.ImageViewer;
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public class MetaProvider
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{
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public class MetaProvider
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private readonly SortedDictionary<string, (string, string)> _cache =
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new SortedDictionary<string, (string, string)>(); // [key, [label, value]]
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private readonly string _path;
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public MetaProvider(string path)
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{
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private readonly SortedDictionary<string, (string, string)> _cache =
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new SortedDictionary<string, (string, string)>(); // [key, [label, value]]
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_path = path;
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private readonly string _path;
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public MetaProvider(string path)
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{
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_path = path;
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GetExif();
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}
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public SortedDictionary<string, (string, string)> GetExif()
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{
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if (_cache.Count != 0)
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return _cache;
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var exif = NativeMethods.GetExif(_path);
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if (string.IsNullOrEmpty(exif))
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return _cache;
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var xml = new XmlDocument();
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xml.LoadXml(exif);
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var iter = xml.SelectNodes("/Exif/child::node()")?.GetEnumerator();
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while (iter != null && iter.MoveNext())
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{
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if (!(iter.Current is XmlNode node))
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continue;
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var key = node.Name;
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var label = node.Attributes?["Label"]?.InnerText;
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var value = node.InnerText;
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_cache.Add(key, (label, value));
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}
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GetExif();
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}
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public SortedDictionary<string, (string, string)> GetExif()
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{
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if (_cache.Count != 0)
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return _cache;
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}
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public byte[] GetThumbnail()
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var exif = NativeMethods.GetExif(_path);
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if (string.IsNullOrEmpty(exif))
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return _cache;
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var xml = new XmlDocument();
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xml.LoadXml(exif);
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var iter = xml.SelectNodes("/Exif/child::node()")?.GetEnumerator();
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while (iter != null && iter.MoveNext())
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{
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return NativeMethods.GetThumbnail(_path) ?? new byte[0];
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if (iter.Current is not XmlNode node)
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continue;
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var key = node.Name;
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var label = node.Attributes?["Label"]?.InnerText;
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var value = node.InnerText;
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_cache.Add(key, (label, value));
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}
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public Size GetSize()
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{
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_cache.TryGetValue("_.Size.Width", out var w_);
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_cache.TryGetValue("_.Size.Height", out var h_);
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if (int.TryParse(w_.Item2, out var w) && int.TryParse(h_.Item2, out var h))
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return new Size(w, h);
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// fallback
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using (var mi = new MagickImage())
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{
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mi.Ping(_path);
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w = (int)mi.Width;
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h = (int)mi.Height;
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}
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return w + h == 0 ? new Size(800, 600) : new Size(w, h);
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}
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public Orientation GetOrientation()
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{
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return (Orientation)NativeMethods.GetOrientation(_path);
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}
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return _cache;
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}
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internal static class NativeMethods
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public byte[] GetThumbnail()
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{
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private static readonly bool Is64 = Environment.Is64BitProcess;
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public static string GetExif(string file)
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{
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try
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{
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var len = Is64 ? GetExif_64(file, null) : GetExif_32(file, null);
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if (len <= 0)
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return string.Empty;
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var sb = new StringBuilder(len + 1);
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var _ = Is64 ? GetExif_64(file, sb) : GetExif_32(file, sb);
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return sb.ToString();
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return string.Empty;
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}
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}
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public static byte[] GetThumbnail(string file)
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{
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try
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{
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var len = Is64 ? GetThumbnail_64(file, null) : GetThumbnail_32(file, null);
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if (len <= 0)
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return null;
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var buffer = new byte[len];
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var _ = Is64 ? GetThumbnail_64(file, buffer) : GetThumbnail_32(file, buffer);
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return buffer;
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return null;
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}
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}
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public static int GetOrientation(string file)
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{
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try
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{
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return Is64 ? GetOrientation_64(file) : GetOrientation_32(file);
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return 0;
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}
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}
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetExif", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetExif_32([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPStr)] StringBuilder sb);
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetThumbnail", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetThumbnail_32([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPArray)] byte[] buffer);
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetOrientation", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetOrientation_32([MarshalAs(UnmanagedType.LPWStr)] string file);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetExif", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetExif_64([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPStr)] StringBuilder sb);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetThumbnail", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetThumbnail_64([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPArray)] byte[] buffer);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetOrientation", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetOrientation_64([MarshalAs(UnmanagedType.LPWStr)] string file);
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return NativeMethods.GetThumbnail(_path) ?? [];
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}
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public enum Orientation
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public Size GetSize()
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{
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Undefined = 0,
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TopLeft = 1,
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TopRight = 2,
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BottomRight = 3,
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BottomLeft = 4,
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LeftTop = 5,
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RightTop = 6,
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RightBottom = 7,
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LeftBottom = 8
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_cache.TryGetValue("_.Size.Width", out var w_);
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_cache.TryGetValue("_.Size.Height", out var h_);
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if (int.TryParse(w_.Item2, out var w) && int.TryParse(h_.Item2, out var h))
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return new Size(w, h);
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// fallback
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using (var mi = new MagickImage())
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{
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mi.Ping(_path);
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w = (int)mi.Width;
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h = (int)mi.Height;
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}
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return w + h == 0 ? new Size(800, 600) : new Size(w, h);
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}
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public Orientation GetOrientation()
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{
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return (Orientation)NativeMethods.GetOrientation(_path);
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}
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}
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internal static class NativeMethods
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{
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private static readonly bool Is64 = Environment.Is64BitProcess;
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public static string GetExif(string file)
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{
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try
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{
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var len = Is64 ? GetExif_64(file, null) : GetExif_32(file, null);
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if (len <= 0)
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return string.Empty;
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var sb = new StringBuilder(len + 1);
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var _ = Is64 ? GetExif_64(file, sb) : GetExif_32(file, sb);
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return sb.ToString();
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return string.Empty;
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}
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}
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public static byte[] GetThumbnail(string file)
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{
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try
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{
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var len = Is64 ? GetThumbnail_64(file, null) : GetThumbnail_32(file, null);
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if (len <= 0)
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return null;
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var buffer = new byte[len];
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var _ = Is64 ? GetThumbnail_64(file, buffer) : GetThumbnail_32(file, buffer);
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return buffer;
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return null;
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}
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}
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public static int GetOrientation(string file)
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{
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try
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{
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return Is64 ? GetOrientation_64(file) : GetOrientation_32(file);
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}
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catch (Exception e)
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{
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Debug.WriteLine(e);
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return 0;
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}
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}
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetExif", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetExif_32([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPStr)] StringBuilder sb);
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetThumbnail", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetThumbnail_32([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPArray)] byte[] buffer);
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[DllImport("exiv2-ql-32.dll", EntryPoint = "GetOrientation", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetOrientation_32([MarshalAs(UnmanagedType.LPWStr)] string file);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetExif", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetExif_64([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPStr)] StringBuilder sb);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetThumbnail", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetThumbnail_64([MarshalAs(UnmanagedType.LPWStr)] string file,
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[MarshalAs(UnmanagedType.LPArray)] byte[] buffer);
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[DllImport("exiv2-ql-64.dll", EntryPoint = "GetOrientation", CallingConvention = CallingConvention.Cdecl)]
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private static extern int GetOrientation_64([MarshalAs(UnmanagedType.LPWStr)] string file);
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}
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public enum Orientation
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{
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Undefined = 0,
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TopLeft = 1,
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TopRight = 2,
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BottomRight = 3,
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BottomLeft = 4,
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LeftTop = 5,
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RightTop = 6,
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RightBottom = 7,
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LeftBottom = 8
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}
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