/// <summary>
/// Get the image stored at the specified path as an IPicture.
/// The PictureHolder remains responsible to dispose or release the picture as needed,
/// typically when the application exits, so the client may keep and use it indefinitely.
/// </summary>
public IPicture GetComPicture(string imagePath)
{
IPicture comPicture;
if (m_previousPictures == null)
{
m_previousPictures = new Dictionary <string, IPicture>();
}
if (m_previousPictures.TryGetValue(imagePath, out comPicture))
{
return(comPicture);
}
try
{
string actualFilePath = FileUtils.ActualFilePath(imagePath);
using (var image = Image.FromFile(actualFilePath))
{
comPicture = (IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
}
catch (Exception e)
{
Debug.WriteLine("Failed to create picture from path " + imagePath + " exception: " + e.Message);
comPicture = null; // if we can't get the picture too bad.
}
m_previousPictures[imagePath] = comPicture;
return(comPicture);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Prepare an image by replacing the transparent color with the window color.
/// </summary>
/// <param name="img"></param>
/// <returns></returns>
/// ------------------------------------------------------------------------------------
private static IPicture PrepareImage(Image img)
{
using (var bitmap = ResourceHelper.ReplaceTransparentColor(img, SystemColors.Window))
{
return((IPicture)OLECvt.ToOLE_IPictureDisp(bitmap));
}
}
private IPicture LoadPicture()
{
IPicture picture;
Image image = null;
try
{
try
{
image = Image.FromFile(FileUtils.ActualFilePath(m_sPath));
}
catch
{
// unable to read image. set to default image that indicates an invalid image.
image = SimpleRootSite.ImageNotFoundX;
}
try
{
picture = (IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
catch
{
// conversion to OLE format from current image format is not supported (e.g. WMF file)
// try to convert it to a bitmap and convert it to OLE format again.
// TODO: deal with transparency
// We could just do the following line (creating a new bitmap) instead of going
// through a memory stream, but then we end up with an image that is too big.
//image = new Bitmap(image, image.Size);
using (MemoryStream imageStream = new MemoryStream())
{
image.Save(imageStream, ImageFormat.Png);
image.Dispose();
// TODO-Linux: useEmbeddedColorManagement parameter is not supported
// on Mono
image = Image.FromStream(imageStream, true);
}
picture = (IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
m_width = picture.Width;
m_height = picture.Height;
m_internalPicture = new WeakReference(picture);
}
finally
{
if (image != null)
{
image.Dispose();
}
}
return(picture);
}
/// <summary>
/// Get an IPicture corresponding to the specified key. If one is not known,
/// obtain it from the source image, and save it for next time. The PictureHolder
/// remains responsible for disposing or releasing the picture in either case.
/// </summary>
public IPicture GetPicture(string key, Image source)
{
IPicture comPicture;
if (m_previousPictures == null)
{
m_previousPictures = new Dictionary <string, IPicture>();
}
if (!m_previousPictures.TryGetValue(key, out comPicture))
{
comPicture = (IPicture)OLECvt.ToOLE_IPictureDisp(source);
m_previousPictures[key] = comPicture;
}
return(comPicture);
}
/// <summary>
/// Converts the image to (an OLECvt) IPicture picture and wraps it with a disposable object.
/// </summary>
/// <param name="image">The image.</param>
/// <returns></returns>
static public ComPictureWrapper ConvertImageToComPicture(Image image)
{
return(new ComPictureWrapper((IPicture)OLECvt.ToOLE_IPictureDisp(image)));
}
public ImageBox(AssembledStyles styles, Image image) : base(styles)
{
BaseImage = image; // keep a reference to it so it doesn't become garbage
Picture = (IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
/// -----------------------------------------------------------------------------------
/// <summary>
/// Display the specified object (from an ORC embedded in a string). The default
/// here knows how to display IPictures.
/// </summary>
/// <param name="vwenv"></param>
/// <param name="hvo"></param>
/// -----------------------------------------------------------------------------------
public virtual void DisplayEmbeddedObject(IVwEnv vwenv, int hvo)
{
CheckDisposed();
// See if it is a CmPicture.
ISilDataAccess sda = vwenv.DataAccess;
int clsid = sda.get_IntProp(hvo, (int)CmObjectFields.kflidCmObject_Class);
if (clsid != CmPicture.kclsidCmPicture)
{
return; // don't know how to deal with it.
}
int hvoFile = sda.get_ObjectProp(hvo, (int)CmPicture.CmPictureTags.kflidPictureFile);
if (hvoFile == 0)
{
return;
}
string path;
string fileName = sda.get_UnicodeProp(hvoFile, (int)CmFile.CmFileTags.kflidInternalPath);
if (Path.IsPathRooted(fileName))
{
path = fileName;
}
else
{
if (m_hvoLangProject == 0)
{
TryToSetLangProjectHvo(sda, hvo);
}
string externalRoot = sda.get_UnicodeProp(m_hvoLangProject, (int)LangProject.LangProjectTags.kflidExtLinkRootDir);
if (String.IsNullOrEmpty(externalRoot))
{
path = Path.Combine(DirectoryFinder.FWDataDirectory, fileName);
}
else
{
path = Path.Combine(externalRoot, fileName);
}
}
vwenv.set_IntProperty((int)FwTextPropType.ktptAlign,
(int)FwTextPropVar.ktpvEnum, (int)FwTextAlign.ktalCenter);
Image image;
try
{
image = Image.FromFile(FileUtils.ActualFilePath(path));
}
catch
{
// unable to read image. set to default image that indicates an invalid image.
image = ResourceHelper.ImageNotFoundX;
}
stdole.IPicture picture;
try
{
picture = (stdole.IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
catch
{
// conversion to OLE format from current image format is not supported (e.g. WMF file)
// try to convert it to a bitmap and convert it to OLE format again.
// TODO: deal with transparency
// We could just do the following line (creating a new bitmap) instead of going
// through a memory stream, but then we end up with an image that is too big.
//image = new Bitmap(image, image.Size);
using (MemoryStream imageStream = new MemoryStream())
{
image.Save(imageStream, ImageFormat.Png);
image = Image.FromStream(imageStream, true);
}
picture = (stdole.IPicture)OLECvt.ToOLE_IPictureDisp(image);
}
// -1 is ktagNotAnAttr. 0 width & height mean use natural width/height.
vwenv.AddPictureWithCaption(picture, -1, CaptionProps, hvoFile, m_wsDefault, 0, 0, this);
image.Dispose();
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Prepare an image by replacing the transparent color with the window color.
/// </summary>
/// <param name="img"></param>
/// <returns></returns>
/// ------------------------------------------------------------------------------------
private stdole.IPicture PrepareImage(Image img)
{
return((stdole.IPicture)OLECvt.ToOLE_IPictureDisp(
ResourceHelper.ReplaceTransparentColor(img, SystemColors.Window)));
}