ClearExif.cs
- //
- // This code is part of Document Solutions for Imaging demos.
- // Copyright (c) MESCIUS inc. All rights reserved.
- //
- using System;
- using System.IO;
- using System.Drawing;
- using System.Collections.Generic;
- using System.Linq;
- using GrapeCity.Documents.Drawing;
- using GrapeCity.Documents.Text;
- using GrapeCity.Documents.Imaging;
- using GrapeCity.Documents.Imaging.Exif;
- using GCTEXT = GrapeCity.Documents.Text;
- using GCDRAW = GrapeCity.Documents.Drawing;
-
- namespace DsImagingWeb.Demos
- {
- // Clear all Exif tags found in an image.
- // This sample is almost identical to @(ShowExif} but prior to printing
- // Exif tags found in the image it clears all those tags.
- // The expected result is that no tags are found.
- public class ClearExif
- {
- public GcBitmap GenerateImage(Size pixelSize, float dpi, bool opaque, string[] sampleParams = null)
- {
- var pad = 20;
- var side = pixelSize.Width / 3;
- var bmp = new GcBitmap(pixelSize.Width, pixelSize.Height, true, dpi, dpi);
- using (var g = bmp.CreateGraphics(Color.White))
- using (var testImage = new GcBitmap(Path.Combine("Resources", "ImagesBis", "fire.jpg")))
- {
- // Remove all existing values from the image's Exif profile:
- testImage.ExifProfile.Clear();
- // Note: Individual tags can be removed via testImage.ExifProfile.RemoveValue(tag);
-
- // The remaining code is same as in ShowExif:
- var tl = g.CreateTextLayout();
- tl.DefaultFormat.Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "times.ttf"));
- tl.DefaultFormat.FontSize = 11;
- tl.DefaultTabStops = 160;
- tl.MarginTop = pad;
- tl.MarginBottom = pad;
- tl.MarginLeft = pad * 2 + side;
- tl.MarginRight = pad;
- tl.MaxWidth = pixelSize.Width;
- AppendExifData(tl, testImage.ExifProfile);
- g.DrawImage(testImage, new RectangleF(pad, pad, side, side), null, ImageAlign.ScaleImage);
- if (tl.Lines.Count == 0)
- tl.AppendLine("No EXIF tags found.");
- g.DrawTextLayout(tl, PointF.Empty);
- }
- return bmp;
- }
-
- void AppendExifData(TextLayout tl, ExifProfile ep)
- {
- Append(tl, ep, ExifTag.Make, ep.Make);
- Append(tl, ep, ExifTag.Model, ep.Model);
- Append(tl, ep, ExifTag.XResolution, ep.XResolution?.ToString());
- Append(tl, ep, ExifTag.YResolution, ep.YResolution?.ToString());
- Append(tl, ep, ExifTag.ResolutionUnit, ep.ResolutionUnit.ToString());
- Append(tl, ep, ExifTag.Software, ep.Software);
- Append(tl, ep, ExifTag.DateTime, ep.DateTimeRaw);
- Append(tl, ep, ExifTag.Artist, ep.Artist);
- Append(tl, ep, ExifTag.Copyright, ep.Copyright);
- Append(tl, ep, ExifTag.ExposureTime, ep.ExposureTime?.ToString());
- Append(tl, ep, ExifTag.FNumber, ep.FNumber?.ToString());
- Append(tl, ep, ExifTag.ExposureProgram, ep.ExposureProgram.ToString());
- Append(tl, ep, ExifTag.PhotographicSensitivity, ep.PhotographicSensitivity?.ToString());
- Append(tl, ep, ExifTag.ExifVersion, ep.ExifVersion);
- Append(tl, ep, ExifTag.DateTimeOriginal, ep.DateTimeOriginalRaw);
- Append(tl, ep, ExifTag.DateTimeDigitized, ep.DateTimeDigitizedRaw);
- Append(tl, ep, ExifTag.ShutterSpeedValue, ep.ShutterSpeedValue?.ToString());
- Append(tl, ep, ExifTag.ApertureValue, ep.ApertureValue?.ToString());
- Append(tl, ep, ExifTag.ExposureBiasValue, ep.ExposureBiasValue?.ToString());
- Append(tl, ep, ExifTag.MaxApertureValue, ep.MaxApertureValue?.ToString());
- Append(tl, ep, ExifTag.MeteringMode, ep.MeteringMode.ToString());
- Append(tl, ep, ExifTag.LightSource, ep.LightSource.ToString());
- Append(tl, ep, ExifTag.Flash, ep.Flash.ToString());
- Append(tl, ep, ExifTag.FocalLength, ep.FocalLength?.ToString());
- // First 8 symbols in UserComment specify encoding:
- Append(tl, ep, ExifTag.UserComment, ep.UserComment?.Substring(8));
- Append(tl, ep, ExifTag.SubsecTimeOriginal, ep.SubsecTimeOriginal?.ToString());
- Append(tl, ep, ExifTag.SubsecTimeDigitized, ep.SubsecTimeDigitized?.ToString());
- Append(tl, ep, ExifTag.ColorSpace, ep.ColorSpace.ToString());
- Append(tl, ep, ExifTag.SensingMethod, ep.SensingMethod.ToString());
- Append(tl, ep, ExifTag.FileSource, ep.FileSource.ToString());
- Append(tl, ep, ExifTag.SceneType, ep.SceneType?.ToString());
- Append(tl, ep, ExifTag.CFAPattern, ep[ExifTag.CFAPattern]?.ToString());
- Append(tl, ep, ExifTag.CustomRendered, ep.CustomRendered.ToString());
- Append(tl, ep, ExifTag.ExposureMode, ep.ExposureMode.ToString());
- Append(tl, ep, ExifTag.WhiteBalance, ep.WhiteBalance.ToString());
- Append(tl, ep, ExifTag.DigitalZoomRatio, ep.DigitalZoomRatio?.ToString());
- Append(tl, ep, ExifTag.FocalLengthIn35mmFilm, ep.FocalLengthIn35mmFilm?.ToString());
- Append(tl, ep, ExifTag.SceneCaptureType, ep.SceneCaptureType.ToString());
- Append(tl, ep, ExifTag.Contrast, ep.Contrast.ToString());
- Append(tl, ep, ExifTag.Saturation, ep.Saturation.ToString());
- Append(tl, ep, ExifTag.Sharpness, ep.Sharpness.ToString());
- Append(tl, ep, ExifTag.SubjectDistanceRange, ep.SubjectDistanceRange.ToString());
- Append(tl, ep, ExifTag.BodySerialNumber, ep.BodySerialNumber);
- Append(tl, ep, ExifTag.LensSpecification, ep[ExifTag.LensSpecification]?.ToString());
- Append(tl, ep, ExifTag.LensModel, ep.LensModel);
- }
-
- void Append(TextLayout tl, ExifProfile ep, ExifTag tag, string text)
- {
- if (ep.HasValue(tag))
- {
- tl.AppendLine(tag.ToString() + '\t' + text);
- }
- }
- }
- }
-