/// <summary>
/// 绘制列表子项
/// </summary>
/// <param name="g">绘图表面</param>
/// <param name="subItem">要绘制的子项</param>
/// <param name="rectSubItem">该子项的区域</param>
/// <param name="sb">画刷</param>
protected virtual void DrawSubItem(Graphics g, ChatListSubItem subItem, ref Rectangle rectSubItem, SolidBrush sb)
{
if (subItem.Equals(selectSubItem))
{ //判断改子项是否被选中
rectSubItem.Height = (int)ChatListItemIcon.Large; //如果选中则绘制成大图标
sb.Color = this.subItemSelectColor;
g.FillRectangle(sb, rectSubItem);
DrawHeadImage(g, subItem, rectSubItem); //绘制头像
DrawLargeSubItem(g, subItem, rectSubItem); //绘制大图标 显示的个人信息
subItem.Bounds = new Rectangle(rectSubItem.Location, rectSubItem.Size);
return;
}
else if (subItem.Equals(m_mouseOnSubItem))
{
sb.Color = this.subItemMouseOnColor;
}
else
{
sb.Color = this.subItemColor;
}
g.FillRectangle(sb, rectSubItem);
DrawHeadImage(g, subItem, rectSubItem);
if (iconSizeMode == ChatListItemIcon.Large) //没有选中则根据 图标模式绘制
{
DrawLargeSubItem(g, subItem, rectSubItem);
}
else
{
DrawSmallSubItem(g, subItem, rectSubItem);
}
subItem.Bounds = new Rectangle(rectSubItem.Location, rectSubItem.Size);
}
/// <summary>
/// 绘制列表子项的头像
/// </summary>
/// <param name="g">绘图表面</param>
/// <param name="subItem">要绘制头像的子项</param>
/// <param name="rectSubItem">该子项的区域</param>
protected virtual void DrawHeadImage(Graphics g, ChatListSubItem subItem, Rectangle rectSubItem)
{
if (subItem.IsTwinkle)
{ //判断改头像是否闪动
if (subItem.IsTwinkleHide) //同理该值 在线程中 取反赋值
{
return;
}
}
int imageHeight = rectSubItem.Height - 10; //根据子项的大小计算头像的区域
subItem.HeadRect = new Rectangle(5, rectSubItem.Top + 5, imageHeight, imageHeight);
if (subItem.HeadImage == null) //如果头像位空 用默认资源给定的头像
{
subItem.HeadImage = global::CWebQQ.Properties.Resources._null;
}
if (subItem.Status == ChatListSubItem.UserStatus.OffLine)
{
g.DrawImage(subItem.GetDarkImage(), subItem.HeadRect);
}
else
{
g.DrawImage(subItem.HeadImage, subItem.HeadRect); //如果在线根据在想状态绘制小图标
if (subItem.Status == ChatListSubItem.UserStatus.QMe)
{
g.DrawImage(global::CWebQQ.Properties.Resources.QMe, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
}
if (subItem.Status == ChatListSubItem.UserStatus.Away)
{
g.DrawImage(global::CWebQQ.Properties.Resources.Away, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
}
if (subItem.Status == ChatListSubItem.UserStatus.Busy)
{
g.DrawImage(global::CWebQQ.Properties.Resources.Busy, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
}
if (subItem.Status == ChatListSubItem.UserStatus.DontDisturb)
{
g.DrawImage(global::CWebQQ.Properties.Resources.Dont_Disturb, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
}
}
if (subItem.Equals(selectSubItem)) //根据是否选中头像绘制头像的外边框
{
g.DrawRectangle(Pens.Cyan, subItem.HeadRect);
}
else
{
g.DrawRectangle(Pens.Gray, subItem.HeadRect);
}
}