private void toolStripMenuItemMessage_Click(object sender, EventArgs e)
{
MessageListItem item = messageListBox.GetItemAtPosition(messageListBox.PointToClient(MousePosition)) as MessageListItem;
if (item == null)
{
return;
}
Message m = item.Message;
if (sender == toolStripMenuItemCopy)
{
if (m.Type == MessageType.Text)
{
string selection = item.SelectedText;
if (!string.IsNullOrEmpty(selection))
{
Clipboard.SetText(selection);
}
else
{
Clipboard.SetText(m.Content);
}
}
else if (m.Type == MessageType.Image)
{
Clipboard.SetImage((m as ImageMessage).Image);
}
else if (m.Type == MessageType.File)
{
string filePath = (m as FileMessage).OriginFilePath;
if (File.Exists(filePath))
{
StringCollection sc = new StringCollection();
sc.Add(filePath);
Clipboard.SetFileDropList(sc);
}
}
}
else if (sender == toolStripMenuItemOpenFolder)
{
if (m.Type == MessageType.Image)
{
}
else if (m.Type == MessageType.File)
{
string filePath = (m as FileMessage).OriginFilePath;
if (File.Exists(filePath))
{
}
}
}
else if (sender == toolStripMenuItemSaveAs)
{
}
}
protected override void OnItemClicked(ItemClickedEventArgs args)
{
if (args.Button == MouseButtons.Left)
{
MessageListItem item = args.Item as MessageListItem;
Message m = item.Message;
Rectangle rect = item.Bounds;
foreach (DrawingObject dobj in item.DrawingObjects)
{
RectangleF drawingObjRect = dobj.Offset(rect.X, rect.Y);
switch (dobj.Type)
{
//头像
case DrawingObjectType.ProfilePhoto:
if (drawingObjRect.Contains(args.Location))
{
UserProfileControl control = new UserProfileControl();
control.User = item.User;
control.Show(this.PointToScreen(args.Location));
return;
}
break;
case DrawingObjectType.Image:
case DrawingObjectType.File:
{
if (drawingObjRect.Contains(args.Location))
{
//点击了图像，显示大图, 或者打开文件
string path;
if (m.Type == MessageType.Image)
{
path = (m as ImageMessage).OriginPath;
}
else
{
path = (m as FileMessage).OriginFilePath;
}
if (LanFile.Exists(path))
{
Process.Start(path);
}
}
break;
}
}
}
}
else if (args.Button == MouseButtons.Right)
{
//交给显示右键菜单
}
}
private void OnSendMessage(Message m)
{
SendMessage?.Invoke(this, new SendMessageEventArgs(m));
}
protected override void OnMeasureItem(UI.MeasureItemEventArgs args)
{
base.OnMeasureItem(args);
MessageListItem item = args.Item as MessageListItem;
Message m = item.Message;
Graphics g = args.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
int x = MARGIN;
int y = MARGIN;
item.DrawingObjects.Clear();
//头像
DrawingObject dobj = new DrawingObject(DrawingObjectType.ProfilePhoto, new Rectangle(x, y, ICON_WIDTH, ICON_WIDTH));
item.DrawingObjects.Add(dobj);
//时间, 昵称，状态
x += ICON_WIDTH + MARGIN;
dobj = new DrawingObject(DrawingObjectType.Title, new Rectangle(x, y, this.ClientSize.Width - x, args.Font.Height));
item.DrawingObjects.Add(dobj);
y = MARGIN + args.Font.Height + MARGIN;
int height = y;
int width = 0;
if (m.Type == MessageType.Text)
{
width = item.Width - ICON_WIDTH - 3 * MARGIN;
//height = (int)g.MeasureString(m.Content, args.Font, width).Height;
List <StringPart> spList = StringMeasurer.Measure(g, args.Font, width, m.Content);
foreach (StringPart sp in spList)
{
Rectangle textRect = sp.Bounds;
textRect.X += x;
textRect.Y += y;
dobj = new DrawingObject(DrawingObjectType.TextBlock, textRect);
dobj.Tag = new TextBlockObj(sp);
item.DrawingObjects.Add(dobj);
height += sp.Bounds.Height;
}
}
else if (m.Type == MessageType.Image)
{
Image image = (m as ImageMessage).Image;
//对于一些过小的图片最小32，此时图片会画歪掉，算了就这样
width = Math.Max(32, (int)(1.0 * image.Width * PICTURE_THUMBNAIL_HEIGHT / image.Height));
width = Math.Min(width, this.ClientSize.Width - 64);//当然也不要超过当前宽度
dobj = new DrawingObject(DrawingObjectType.Image, new Rectangle(x, y, width, PICTURE_THUMBNAIL_HEIGHT));
item.DrawingObjects.Add(dobj);
height += PICTURE_THUMBNAIL_HEIGHT;
}
else if (m.Type == MessageType.File)
{
width = FILE_SEND_WIDTH;
dobj = new DrawingObject(DrawingObjectType.File, new Rectangle(x, y, width, FILE_SEND_HEIGHT));
item.DrawingObjects.Add(dobj);
height += FILE_SEND_HEIGHT;
}
item.Height = Math.Max(ICON_WIDTH + MARGIN, height) + MARGIN;
}
protected override void OnDrawItem(UI.DrawItemEventArgs args)
{
MessageListItem item = args.Item as MessageListItem;
Message m = item.Message;
args.DrawBackground();
Graphics g = args.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Rectangle rect = item.Bounds;
Rectangle drawingObjRect;
Point pos = PointToClient(MousePosition);
foreach (DrawingObject dobj in item.DrawingObjects)
{
drawingObjRect = dobj.Offset(rect.X, rect.Y);
switch (dobj.Type)
{
//头像
case DrawingObjectType.ProfilePhoto:
{
g.DrawImage(ProfilePhotoPool.GetPhoto(item.User.ID), drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
break;
}
//时间, 昵称，状态
case DrawingObjectType.Title:
{
string text = item.User.NickName + " " + m.Time.ToString("yyyy/MM/dd HH:mm:ss");
if (!m.Flag)
{
text += " 传送失败";
}
TextRenderer.DrawText(g, text,
args.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y)
, m.Flag ? SUCCESS_TITLE_COLOR : ERROR_TITLE_COLOR, TextFormatFlags.Left);
break;
}
//文本消息
case DrawingObjectType.TextBlock:
{
TextBlockObj tb = dobj.Tag as TextBlockObj;
StringPart sp = tb.StringPart;
int selStart = Math.Min(tb.SelectionStart, tb.SelectionEnd);
int selEnd = Math.Max(tb.SelectionStart, tb.SelectionEnd);
string str1 = selStart == -1 ? sp.String : sp.String.Substring(0, selStart);
string str2 = selStart == -1 ? "" : sp.String.Substring(selStart, tb.SelectionLength);
string str3 = selEnd == -1 ? "" : sp.String.Substring(selEnd + 1);
//选择前的文本
if (!string.IsNullOrEmpty(str1))
{
TextRenderer.DrawText(g, str1, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y), args.ForeColor,
StringMeasurer.TextFormatFlags);
}
//选择中文本
if (!string.IsNullOrEmpty(str2))
{
int w1 = StringMeasurer.Width(g, sp.Font, str1, sp.TextFormatFlags);
int w2 = StringMeasurer.Width(g, sp.Font, str2, sp.TextFormatFlags);
drawingObjRect.X += w1;
drawingObjRect.Width = w2;
g.FillRectangle(BrushPool.GetBrush(TEXT_SELECTION_BACK_COLOR), drawingObjRect);
TextRenderer.DrawText(g, str2, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y),
TEXT_SELECTION_FORE_COLOR, StringMeasurer.TextFormatFlags);
//选择后的文本
if (!string.IsNullOrEmpty(str3))
{
drawingObjRect.X += w2;
drawingObjRect.Width = dobj.Width - w1 - w2;
TextRenderer.DrawText(g, str3, sp.Font, new Point((int)drawingObjRect.X, (int)drawingObjRect.Y), args.ForeColor,
StringMeasurer.TextFormatFlags);
}
}
break;
}
case DrawingObjectType.Image:
{
Image image = (m as ImageMessage).Image;
g.DrawImage(image, drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
else
{
g.DrawRectangle(IMAGE_BORDER_PEN, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
break;
}
case DrawingObjectType.File:
{
FileMessage fm = m as FileMessage;
//底背景
g.FillRectangle(Brushes.White, drawingObjRect);
if (drawingObjRect.Contains(pos))
{
g.DrawRectangle(IMAGE_BORDER_PEN_FOCUS, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
else
{
g.DrawRectangle(IMAGE_BORDER_PEN, drawingObjRect.X, drawingObjRect.Y, drawingObjRect.Width, drawingObjRect.Height);
}
//文件名，文件大小，ICON
Image image = FileIconPool.GetIcon(fm.OriginFilePath);
int imageWidth = 64;
int imageHeight = 64 * image.Height / image.Width;
Rectangle imageRect = new Rectangle(drawingObjRect.X + FILE_SEND_WIDTH - imageWidth - MARGIN, drawingObjRect.Y + MARGIN, imageWidth, FILE_SEND_HEIGHT - Font.Height - MARGIN * 3);
Rectangle fileNameRect = new Rectangle(drawingObjRect.X + MARGIN, drawingObjRect.Y + MARGIN, FILE_SEND_WIDTH - imageWidth - MARGIN * 3, FILE_SEND_HEIGHT - Font.Height - MARGIN * 3);
Rectangle fontRect = new Rectangle(drawingObjRect.X + MARGIN, drawingObjRect.Y + FILE_SEND_HEIGHT - Font.Height - MARGIN, FILE_SEND_WIDTH - MARGIN * 2, Font.Height);
Rectangle pieRect = new Rectangle(drawingObjRect.X + (FILE_SEND_WIDTH - PROGRESS_PIE_D) / 2, drawingObjRect.Y + (FILE_SEND_HEIGHT - PROGRESS_PIE_D) / 2, PROGRESS_PIE_D, PROGRESS_PIE_D);
Rectangle processRect = new Rectangle(drawingObjRect.X, drawingObjRect.Y + (FILE_SEND_HEIGHT - Font.Height * 2) / 2, FILE_SEND_WIDTH, Font.Height * 2);
//当文件名超过显示部分时，中间用省略号表示
string str = fm.FileName;
SizeF s = g.MeasureString(fm.FileName, Font, new System.Drawing.SizeF((float)fileNameRect.Width, (float)fileNameRect.Height), StringFormat.GenericDefault, out int count, out int lines);
if (s.Height >= fileNameRect.Height & str.Length >= count)
{
//由于会出现半行的情况，直接写死了所取的字符串数目
str = str.Substring(0, 36) + "・・・" + str.Substring(str.Length - 4);
}
g.DrawImage(image, imageRect.X, imageRect.Y, imageWidth, imageHeight);
g.DrawString(str, args.Font, Brushes.Black, fileNameRect);
TextRenderer.DrawText(g, LanFile.HumanReadbleLen(fm.FileLength), args.Font, fontRect, Color.FromArgb(0, 0, 0), TextFormatFlags.Left);
if (item.State == MessageState.Receiving ||
item.State == MessageState.Sending)
{
//接受进度
g.FillRectangle(MESSAGELIST_PROGRESS_BACKGROUND_BRUSH, drawingObjRect);
g.DrawPie(PROGRESS_PEN, pieRect, 0, 360);
g.FillPie(MESSAGELIST_PROGRESS_FILLED_BRUSH, pieRect, 0, 360 * item.Progress / 100);
//TODO 显示剩余时间，传输速度
TextRenderer.DrawText(g, item.Progress + "%" + "\r\n" + LanFile.HumanReadbleLen(item.FileTransportedLength) + "/" + LanFile.HumanReadbleLen(fm.FileLength),
args.Font, processRect, Color.FromArgb(0, 0, 0), TextFormatFlags.HorizontalCenter);
}
break;
}
}
}
}