public static void DrawChat(Graphics g, Dialog chat, Font fnt, ControlState state, int y = 0, int width = 200)
{
Color bg = Color.FromArgb(164, Color.White);
if (state == ControlState.Hover)
{
bg = Color.FromArgb(182, Color.White);
}
else if (state == ControlState.Pressed)
{
bg = Color.FromArgb(196, Color.White);
}
g.FillRectangle(new SolidBrush(bg), 0, y, width, 50);
if (chat == null)
{
return;
}
Message msg = chat.Message;
if (msg == null)
{
return;
}
User usr = msg.User;
if (usr != null)
{
Bitmap p = msg.GetPhoto();
if (p == null)
{
p = usr.GetPhoto();
}
if (p != null)
{
g.DrawImage(p, new Rectangle(1, y + 1, 48, 48));
}
}
DrawString(g, chat.Title, fnt, Brushes.Black, new Rectangle(55, y, width - 55, 50), StringAlignment.Near);
if (state == ControlState.Active)
{
g.FillPolygon(new SolidBrush(Color.FromArgb(78, Color.White)), new []
{
new Point(width, y),
new Point(width, y + 50),
new Point(width - 25, y + 25)
});
}
}
public void SendMessage(String text, bool encrypt = false)
{
if (this._chat == null)
{
return;
}
new Thread(async() =>
{
while (this._sending)
{
Thread.Sleep(10);
}
String chat = "user_id=" + this._chat.Message.UserID;
if (this._chat.Message.ChatID > 0)
{
chat = "chat_id=" + this._chat.Message.ChatID;
}
if (!String.IsNullOrEmpty(text))
{
this._sending = true;
this.InvokeEx(t => t.Invalidate());
if (encrypt)
{
if (String.IsNullOrEmpty(this._chat.CryptKey))
{
this.InvokeEx(t =>
{
DecryptMessagesForm frm = new DecryptMessagesForm();
if (frm.ShowDialog(t.FindForm()) == DialogResult.OK)
{
t._chat.CryptKey = frm.Passphrase;
}
});
}
if (!String.IsNullOrEmpty(this._chat.CryptKey))
{
text = Message.Encrypt(text, this._chat.CryptKey);
}
}
await Message.Send(chat, text);
this._sending = false;
this.InvokeEx(t => t.Invalidate());
}
}).Start();
}
public ChatControl() : base()
{
AppEvents.On(AppEventType.OpenChat, OpenChat);
LongPollServer.On(LPEventType.MessageAdded, async e =>
{
if (this._chat == null)
{
return;
}
int msgID = (int)((long)((JValue)e.Data[0]).Value);
Message msg = await Message.Get(msgID);
if (msg.UserID == this._chat.Message.UserID || (msg.ChatID != 0 && msg.ChatID == this._chat.Message.ChatID))
{
(new Thread(() =>
{
if (msg.Attachments != null && msg.Attachments.Length > 0)
{
foreach (Attachment a in msg.Attachments)
{
if (a.Type == "photo" && a.Photo != null)
{
a.Photo.Load();
}
}
}
if (msg.CryptedNow && this._chat.CryptKey != null)
{
msg.Decrypt(this._chat.CryptKey);
}
msg.Author.GetPhoto();
this._messages.Add(msg);
this._loaded = true;
this._heightCalculated = false;
this.InvokeEx(t =>
{
t.Invalidate();
});
})).Start();
}
});
}
private void LoadChats()
{
(new Thread(async() =>
{
if (API.API.Session == null)
{
return;
}
this.chats = await Dialog.GetDialogs();
this.loaded = true;
List <int> ids = new List <int>();
foreach (Dialog chat in this.chats)
{
Message msg = chat.Message;
if (!ids.Contains(msg.UserID))
{
ids.Add(msg.UserID);
}
}
User[] users = await User.GetAll(ids);
foreach (User u in users)
{
u.GetPhoto();
}
this.InvokeEx(t =>
{
if (t != null && t.chats != null)
{
t.ContentHeight = t.chats.Count * 50;
t.Invalidate();
}
});
})).Start();
}
public static int DrawMessage(Graphics g, Message msg, Message prevMsg, Font fnt, ControlState state, int y = 0, int width = 500, int cHeight = 400, MouseState mouse = default(MouseState))
{
if (msg == null)
{
return(y);
}
int height = 0;
const int padding = 10;
const int avatarSz = 48;
int hWidth = width - avatarSz - 3 * padding;
int msgWidth = width / 100 * 80;
User usr = msg.Author;
if (usr == null)
{
return(y);
}
Size hSize = Size.Empty;
if (prevMsg == null || prevMsg.Author != usr)
{
int aX = padding;
if (msg.Out)
{
aX = width - padding - avatarSz;
}
Bitmap p = usr.GetPhoto();
if (p != null && y > -avatarSz)
{
g.DrawImage(p, new Rectangle(aX, y, avatarSz, avatarSz));
}
hSize = Size.Ceiling(g.MeasureString(usr.FullName, fnt, hWidth));
int hX = 2 * padding + avatarSz;
if (msg.Out)
{
hX = width - 2 * padding - avatarSz - hSize.Width;
}
if (y > -hSize.Height)
{
DrawString(g, usr.FullName, fnt, Brushes.DimGray, new Rectangle(new Point(hX, y), hSize));
}
}
height += padding / 2 + hSize.Height;
Size msgSize = Size.Ceiling(g.MeasureString(msg.Body, fnt, msgWidth));
Size msgRectSize = Size.Add(msgSize, new Size(2 * padding, 2 * padding));
int rX = 2 * padding + avatarSz + 5;
if (msg.Out)
{
rX = width - 2 * padding - avatarSz - msgRectSize.Width - 5;
}
int rY = y + padding / 2 + hSize.Height;
if (msg.Attachments != null && msg.Attachments.Length > 0)
{
int ax = 0, ay = 0;
int mw = 0, mh = 0;
foreach (Attachment a in msg.Attachments)
{
Size asz = a.Measure(g, fnt, msgWidth - ax, true);
if (mh < asz.Height)
{
mh = asz.Height;
}
if (ax + asz.Width > msgWidth)
{
ax = 0;
ay += mh + padding;
mh = 0;
}
else
{
ax += asz.Width + padding;
}
if (mw < ax)
{
mw = ax;
}
}
msgRectSize = new Size(Math.Max(msgSize.Width, mw) + padding, msgSize.Height + ay + mh + 2 * padding);
rX = 2 * padding + avatarSz + 5;
if (msg.Out)
{
rX = width - 2 * padding - avatarSz - msgRectSize.Width - 5;
}
rY = y + padding / 2 + hSize.Height;
}
Color msgRectColor = Color.White;
if (msg.Crypted)
{
msgRectColor = Color.Lime;
}
if (!msg.Read)
{
msgRectColor = Color.DodgerBlue;
if (msg.Crypted)
{
msgRectColor = Color.LimeGreen;
}
}
Brush msgRectBrush = new SolidBrush(Color.FromArgb(128, msgRectColor));
if (rY > -msgRectSize.Height && rY < cHeight)
{
g.FillRoundRectangle(msgRectBrush, new Rectangle(new Point(rX, rY), msgRectSize), padding / 2);
}
int tX = rX;
int tY = rY + padding;
if (msg.Out)
{
tX = rX + msgRectSize.Width;
}
g.FillPolygon(msgRectBrush, new[]
{
new Point(tX, tY),
new Point(tX, tY + 16),
new Point(((msg.Out) ? tX + 10 : tX - 10), tY + 8)
});
if (y + padding + padding / 2 + hSize.Height > -msgSize.Height && y < cHeight)
{
Rectangle msgRectangle = new Rectangle(new Point(rX + padding, y + padding + padding / 2 + hSize.Height), msgSize);
/*if (msg.Body.Length > 256)
* {
* DrawString(g, msg.Body, fnt, Brushes.Black, msgRectangle, StringAlignment.Near);
* }
* else
* {*/
List <TextBlock> blocks;
if (msg.RuntimeData.ContainsKey("TextBlocks"))
{
blocks = (List <TextBlock>)msg.RuntimeData["TextBlocks"];
}
else
{
blocks = new List <TextBlock>();
int blkend = 0;
MatchCollection matches = _URL.Matches(msg.Body);
if (matches.Count > 0)
{
foreach (Match m in matches)
{
String url = m.ToString();
int idx = msg.Body.IndexOf(url, StringComparison.Ordinal);
if (idx > blkend)
{
blocks.Add(new TextBlock(msg.Body, blkend, idx - blkend));
}
TextBlock blk = new TextBlock(msg.Body, idx, url.Length, TextStyle.Link);
blocks.Add(blk);
blkend = blk.End;
}
}
if (msg.Body.Length > blkend)
{
blocks.Add(new TextBlock(msg.Body, blkend, msg.Body.Length - blkend));
}
if (Emoji.FindEmojis(msg.Body).Count > 0)
{
List <TextBlock> nbl = new List <TextBlock>();
foreach (TextBlock b in blocks)
{
foreach (String em in Emoji.FindEmojis(b.Fragment))
{
int idx = b.Fragment.IndexOf(em, StringComparison.Ordinal);
if (idx > 0)
{
nbl.Add(new TextBlock(msg.Body, b.Start, idx, b.Style, b.State));
}
nbl.Add(new EmojiBlock(msg.Body, b.Start + idx, em.Length, b.State));
if (idx + em.Length < b.Length)
{
nbl.Add(new TextBlock(msg.Body, b.Start + idx + em.Length, b.Length - idx - em.Length, b.Style, b.State));
}
}
}
blocks = nbl;
}
Console.WriteLine(((msg.Body.Length > 32) ? msg.Body.Substring(0, 32) + "..." : msg.Body) + ": " + blocks.Count + " block(s)");
blocks.Sort((blk, blk2) => blk.Start.CompareTo(blk2.Start));
msg.RuntimeData.Add("TextBlocks", blocks);
}
if (blocks.Count > 16)
{
DrawString(g, msg.Body, fnt, Brushes.Black, msgRectangle, StringAlignment.Near);
}
else
{
int sX = rX + padding,
sY = y + padding + padding / 2 + hSize.Height,
eX = msgSize.Width,
eY = msgSize.Height;
int cX = 0, cY = 0, cH = 0;
CharacterRange[] ranges = { new CharacterRange(0, 1) };
String _c;
Rectangle charRect = Rectangle.Empty;
int cP = 0;
using (StringFormat stringFormat = new StringFormat())
{
stringFormat.Alignment = StringAlignment.Near;
stringFormat.LineAlignment = StringAlignment.Center;
foreach (TextBlock blk in blocks)
{
blk.StartPoint = new Point(cX, cY);
if (blk is EmojiBlock)
{
Bitmap e = ((EmojiBlock)blk).Emoji;
if (e != null)
{
g.DrawImage(e, new Rectangle(new Point(sX + cX + 2, sY + cY), new Size(16, 16)));
if (cH < 16)
{
cH = 16;
}
cX += 20;
if (cX > eX)
{
cX = 0;
cY += cH;
}
}
cP += blk.Length;
}
else
{
while (cP >= blk.Start && cP < blk.End)
{
ranges[0].First = cP;
stringFormat.SetMeasurableCharacterRanges(ranges);
_c = msg.Body.Substring(cP, 1);
charRect =
Rectangle.Round(
g.MeasureCharacterRanges(msg.Body, fnt, msgRectangle, stringFormat)[0]
.GetBounds(g));
if (cH < charRect.Height)
{
cH = charRect.Height;
}
Color c = Color.Black;
if (blk.Style == TextStyle.Link)
{
c = Color.Blue;
if (mouse != null)
{
int mpX = mouse.Position.X;
int mpY = mouse.Position.Y;
if (mpY >= sY + blk.StartPoint.Y && mpY <= sY + blk.EndPoint.Y &&
mpX >= sX + blk.StartPoint.X &&
mpX <= sX + blk.EndPoint.X)
{
blk.State = ControlState.Hover;
if (mouse.Clicked)
{
blk.State = ControlState.Pressed;
mouse.Clicked = false;
}
}
else
{
blk.State = ControlState.Idle;
}
if (blk.State != ControlState.Idle)
{
if (blk.State == ControlState.Hover)
{
c = Color.DarkOrange;
}
if (blk.State == ControlState.Pressed)
{
c = Color.Red;
App.Platform.OpenUrl(msg.Body.Substring(blk.Start, blk.Length));
}
g.FillRectangle(Brushes.White, charRect);
}
}
else
{
blk.State = ControlState.Idle;
c = Color.Blue;
}
}
g.DrawString(_c, fnt, new SolidBrush(c), sX + cX, sY + cY);
if (blk.Style == TextStyle.Link)
{
g.DrawLine(new Pen(c), sX + cX + 2, sY + cY + cH, sX + cX + charRect.Width + 2,
sY + cY + cH);
}
cX += charRect.Width;
if (cX > eX || _c == "\n")
{
cX = 0;
cY += cH;
if (_c != "\n")
{
cH = 0;
}
}
cP++;
}
}
blk.EndPoint = new Point(cX + charRect.Width + 2, cY + cH);
}
}
}
}
height += msgRectSize.Height + padding;
if (msg.Attachments != null && msg.Attachments.Length > 0)
{
int ax = 0, ay = 0;
int mh = 0;
foreach (Attachment a in msg.Attachments)
{
Size asz = a.Measure(g, fnt, msgWidth - ax, true);
Rectangle aRect = new Rectangle(new Point(rX + padding + ax, rY + msgSize.Height + padding + ay), asz);
bool aHover = false, aClick = false;
if (mouse != null && aRect.Contains(mouse.Position))
{
aHover = true;
if (mouse.Clicked)
{
aClick = true;
mouse.Clicked = false;
}
}
a.Draw(g, aRect, fnt, true, aHover, aClick);
if (mh < asz.Height)
{
mh = asz.Height;
}
if (ax + asz.Width > msgWidth)
{
ax = 0;
ay += mh + padding;
mh = 0;
}
else
{
ax += asz.Width + padding;
}
}
}
return(height);
}
protected override void OnPaint(PaintEventArgs e)
{
this.OnPaintBackground(e);
Graphics g = e.Graphics;
g.SmoothingMode = SmoothingMode.HighQuality;
g.FillRectangle(new SolidBrush(Color.FromArgb(196, Color.White)), this.ClientRectangle);
if (!this._loaded || this._messages == null || this._messages.Count == 0)
{
Drawer.DrawString(g, "No messages", this.Font, Brushes.Black, this.ClientRectangle);
}
else
{
String bgi = this._chat.Message.Photo;
if (String.IsNullOrEmpty(bgi))
{
bgi = this._chat.Message.User.Photo;
}
if (!String.IsNullOrEmpty(bgi))
{
Bitmap bg = Drawer.SetImageOpacity(bgi, 0.05f);
if (bg != null)
{
int sz = Math.Max(this.Width, this.Height);
g.DrawImage(bg, (this.Width - sz) / 2, (this.Height - sz) / 2, sz, sz);
}
}
int y = -this.ScrollOffset + 10;
Message prevMsg = null;
lock (_messages_lock)
{
try
{
foreach (Message msg in this._messages)
{
y += Drawer.DrawMessage(g, msg, prevMsg, this.Font, ControlState.Idle, y, this.Width, this.Height, this.Mouse);
prevMsg = msg;
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
}
if (!this._heightCalculated)
{
this.ContentHeight = y + this.ScrollOffset;
this.ScrollOffset = this.ContentHeight - this._oldH + this._so - ((this._oldH == 0) ? this.Height : 0);
this._heightCalculated = true;
}
}
this.Mouse.Clicked = false;
base.OnPaint(e);
}
