void AddEmoji(Gtk.TextBuffer buffer, ref Gtk.TextIter iter, ImageMessagePartModel imgPart, string shortName)
{
var unicode = Emojione.ShortnameToUnicode(shortName);
if (unicode == null)
{
AddAlternativeText(buffer, ref iter, imgPart);
return;
}
// A mark here serves two pusposes. One is to allow us to apply the
// tag across the pixbuf. It also lets us know later where to put
// the pixbuf if we need to load it from the network
var mark = new Gtk.TextMark(null, true);
buffer.AddMark(mark, iter);
var emojiName = unicode + ".png";
string emojiPath;
if (EmojiCache.TryGetIcon("emojione", emojiName, out emojiPath))
{
var emojiFile = new FileInfo(emojiPath);
if (emojiFile.Exists && emojiFile.Length > 0)
{
AddEmoji(buffer, ref iter, imgPart, shortName, mark, emojiPath);
}
else
{
AddAlternativeText(buffer, ref iter, imgPart);
}
return;
}
var emojiUrl = Emojione.UnicodeToUrl(unicode);
EmojiCache.BeginDownloadFile("emojione", emojiName, emojiUrl,
(path) => {
GLib.Idle.Add(delegate {
var markIter = buffer.GetIterAtMark(mark);
AddEmoji(buffer, ref markIter, imgPart, shortName, mark, path);
return(false);
});
},
(ex) => {
GLib.Idle.Add(delegate {
var markIter = buffer.GetIterAtMark(mark);
buffer.DeleteMark(mark);
AddAlternativeText(buffer, ref markIter, imgPart);
return(false);
});
}
);
}
void AddEmoji(Gtk.TextBuffer buffer, ref Gtk.TextIter iter, ImageMessagePartModel imgPart, string shortName)
{
var unicode = Emojione.ShortnameToUnicode(shortName);
if (unicode == null)
{
AddAlternativeText(buffer, ref iter, imgPart);
return;
}
int width, height;
int descent;
using (var layout = CreatePangoLayout(null)) {
layout.GetPixelSize(out width, out height);
descent = layout.Context.GetMetrics(layout.FontDescription, null).Descent;
}
// A mark here serves two pusposes. One is to allow us to apply the
// tag across the pixbuf. It also lets us know later where to put
// the pixbuf if we need to load it from the network
var mark = new Gtk.TextMark(null, true);
buffer.AddMark(mark, iter);
var emojiName = unicode + ".png";
string emojiPath;
if (EmojiCache.TryGetIcon("emojione", emojiName, out emojiPath))
{
var emojiFile = new FileInfo(emojiPath);
if (emojiFile.Exists && emojiFile.Length > 0)
{
var pix = new Gdk.Pixbuf(emojiPath, -1, height);
buffer.InsertPixbuf(ref iter, pix);
var beforeIter = buffer.GetIterAtMark(mark);
var imgTag = new EmojiTag(mark, emojiFile.FullName);
imgTag.Rise = -descent;
_MessageTextTagTable.Add(imgTag);
buffer.ApplyTag(imgTag, beforeIter, iter);
}
else
{
AddAlternativeText(buffer, ref iter, imgPart);
}
return;
}
var emojiUrl = Emojione.UnicodeToUrl(unicode);
EmojiCache.BeginDownloadFile("emojione", emojiName, emojiUrl,
(path) => {
GLib.Idle.Add(delegate {
var afterIter = buffer.GetIterAtMark(mark);
buffer.InsertPixbuf(ref afterIter, new Gdk.Pixbuf(path, -1, height));
var beforeIter = buffer.GetIterAtMark(mark);
var emojiTag = new EmojiTag(mark, path);
_MessageTextTagTable.Add(emojiTag);
emojiTag.Rise = -descent;
buffer.ApplyTag(emojiTag, beforeIter, afterIter);
return(false);
});
},
(ex) => {
GLib.Idle.Add(delegate {
var markIter = buffer.GetIterAtMark(mark);
buffer.DeleteMark(mark);
AddAlternativeText(buffer, ref markIter, imgPart);
return(false);
});
}
);
}
