/* ----------------------------------------------------------------- */
///
/// ConfigImageOperations
///
/// <summary>
/// 画像に関わるオプションを設定します。
/// </summary>
///
/* ----------------------------------------------------------------- */
public void ConfigImageOperations(UserSetting setting, Ghostscript.Converter gs)
{
// 解像度
var resolution = Parameter.ResolutionValue(setting.Resolution);
gs.AddOption("ColorImageResolution", resolution);
gs.AddOption("GrayImageResolution", resolution);
gs.AddOption("MonoImageResolution", (resolution < 300) ? 300 : 1200);
// 画像圧縮
gs.AddOption("AutoFilterColorImages", false);
gs.AddOption("AutoFilterGrayImages", false);
gs.AddOption("AutoFilterMonoImages", false);
gs.AddOption("ColorImageFilter", "/" + setting.ImageFilter.ToString());
gs.AddOption("GrayImageFilter", "/" + setting.ImageFilter.ToString());
gs.AddOption("MonoImageFilter", "/" + setting.ImageFilter.ToString());
// ダウンサンプリング
if (setting.DownSampling == Parameter.DownSamplings.None)
{
gs.AddOption("DownsampleColorImages", false);
gs.AddOption("DownsampleGrayImages", false);
gs.AddOption("DownsampleMonoImages", false);
}
else
{
gs.AddOption("DownsampleColorImages", true);
gs.AddOption("DownsampleGrayImages", true);
gs.AddOption("DownsampleMonoImages", true);
gs.AddOption("ColorImageDownsampleType", "/" + setting.DownSampling.ToString());
gs.AddOption("GrayImageDownsampleType", "/" + setting.DownSampling.ToString());
gs.AddOption("MonoImageDownsampleType", "/" + setting.DownSampling.ToString());
}
}
/* ----------------------------------------------------------------- */
///
/// ResolutionString
///
/// <summary>
/// Resolutions の各値に対応する文字列を取得します。
/// </summary>
///
/* ----------------------------------------------------------------- */
public static string ResolutionString(Parameter.Resolutions id)
{
return(Parameter.ResolutionValue(id).ToString());
}
/* ----------------------------------------------------------------- */
///
/// Run
///
/// <summary>
/// ファイル変換処理を実行します。
/// </summary>
///
/// <remarks>
/// 文書プロパティ、パスワード関連とファイル結合は iTextSharp
/// を利用します。出力パスに指定されたファイルが既に存在する場合、
/// ExistedFile プロパティの指定（上書き、先頭に結合、末尾に結合、
/// リネーム）に従います。
/// </remarks>
///
/* ----------------------------------------------------------------- */
public bool Run(UserSetting setting)
{
// Ghostscript に指定するパスに日本語が入るとエラーが発生する
// 場合があるので，作業ディレクトリを変更する．
this.CreateWorkingDirectory(setting);
Ghostscript.Converter gs = new Ghostscript.Converter(_messages);
gs.Device = Parameter.Device(setting.FileType, setting.Grayscale);
bool status = true;
try {
gs.AddInclude(setting.LibPath + @"\lib");
gs.PageRotation = setting.PageRotation;
gs.Resolution = Parameter.ResolutionValue(setting.Resolution);
this.ConfigImageOperations(setting, gs);
if (Parameter.IsImageType(setting.FileType))
{
this.ConfigImage(setting, gs);
}
else
{
this.ConfigDocument(setting, gs);
}
this.EscapeExistedFile(setting);
gs.AddSource(setting.InputPath);
gs.Destination = setting.OutputPath;
gs.Run();
if (setting.FileType == Parameter.FileTypes.PDF)
{
PdfModifier modifier = new PdfModifier(_escaped, _messages);
status = modifier.Run(setting);
_messages.Add(new Message(Message.Levels.Info, String.Format("CubePdf.PDFModifier.Run: {0}", status.ToString())));
}
if (status)
{
PostProcess postproc = new PostProcess(_messages);
status = postproc.Run(setting);
_messages.Add(new Message(Message.Levels.Info, String.Format("CubePdf.PostProcess.Run: {0}", status.ToString())));
}
}
catch (Exception err) {
_messages.Add(new Message(Message.Levels.Error, err));
_messages.Add(new Message(Message.Levels.Debug, err));
status = false;
}
finally {
if (Directory.Exists(Utility.WorkingDirectory))
{
Directory.Delete(Utility.WorkingDirectory, true);
}
if (setting.DeleteOnClose && File.Exists(setting.InputPath))
{
_messages.Add(new Message(Message.Levels.Debug, String.Format("{0}: delete on close", setting.InputPath)));
File.Delete(setting.InputPath);
}
}
return(status);
}
/* ----------------------------------------------------------------- */
///
/// WebOptimize
///
/// <summary>
/// Web に最適化された PDF ファイルに変換します。
/// </summary>
///
/// <remarks>
/// iTextSharp には Web 最適化オプションが存在しないため、
/// Ghostscript を再度使用して変換を行います。
/// </remarks>
///
/* ----------------------------------------------------------------- */
private bool WebOptimize(UserSetting setting)
{
string tmp = Utility.WorkingDirectory + '\\' + System.IO.Path.GetRandomFileName();
Ghostscript.Converter gs = new CubePdf.Ghostscript.Converter(_messages);
gs.Device = Ghostscript.Devices.PDF_Opt;
bool status = true;
try
{
if (CubePdf.Misc.File.Exists(tmp))
{
CubePdf.Misc.File.Delete(tmp, true);
}
CubePdf.Misc.File.Move(setting.OutputPath, tmp, true);
gs.AddInclude(setting.LibPath + @"\lib");
gs.Resolution = Parameter.ResolutionValue(setting.Resolution);
gs.PageRotation = setting.PageRotation;
gs.AddOption("CompatibilityLevel", Parameter.PdfVersionValue(setting.PDFVersion));
gs.AddOption("UseFlateCompression", true);
if (setting.EmbedFont)
{
gs.AddOption("EmbedAllFonts", true);
gs.AddOption("SubsetFonts", true);
}
else
{
gs.AddOption("EmbedAllFonts", false);
}
if (setting.Grayscale)
{
gs.AddOption("ProcessColorModel", "/DeviceGray");
gs.AddOption("ColorConversionStrategy", "/Gray");
}
gs.AddSource(tmp);
gs.Destination = setting.OutputPath;
gs.Run();
}
catch (Exception err)
{
_messages.Add(new Message(Message.Levels.Warn, "CubePdf.PDFModifier.WebOptimize: False"));
_messages.Add(new Message(Message.Levels.Debug, err));
status = false;
}
finally
{
if (!CubePdf.Misc.File.Exists(setting.OutputPath))
{
CubePdf.Misc.File.Move(tmp, setting.OutputPath, true);
}
else
{
var fi = new System.IO.FileInfo(setting.OutputPath);
if (fi.Length == 0)
{
CubePdf.Misc.File.Move(tmp, setting.OutputPath, true);
}
else
{
CubePdf.Misc.File.Delete(tmp, false);
}
}
}
return(status);
}
