/// <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);
//对color进行变换
for (int i = rectSubItem.Height; i > 0; i--)
{
if (sb.Color.R - i * 3 >= 0//先保证RGB值在合理范围内
&& sb.Color.G - i * 3 >= 0)
{
g.DrawLine(new Pen(Color.FromArgb(100, sb.Color.R - i * 3, sb.Color.G - i * 3, sb.Color.B)),
rectSubItem.Left, rectSubItem.Top + i,
rectSubItem.Right, rectSubItem.Top + i);
}
}
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);//
//对color进行变换
for (int i = rectSubItem.Height; i > 0; i--) {
if (sb.Color.R - i * 3 >= 0
&& sb.Color.R - i * 3 >= 0)
{
g.DrawLine(new Pen(Color.FromArgb(100, sb.Color.R - i * 3, sb.Color.G - i * 3, sb.Color.B)),
rectSubItem.Left, rectSubItem.Top+i,
rectSubItem.Right, rectSubItem.Top+i);
}
}
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::_CUSTOM_CONTROLS.Properties.Resources._null;
if (subItem.Status == ChatListSubItem.UserStatus.OffLine)
g.DrawImage(subItem.GetDarkImage(), subItem.HeadRect);
else {
pairs_image image = new pairs_image();
g.DrawImage(image.get_image_from_name(subItem.DisplayName), subItem.HeadRect);//绘制小图标
/*
if (subItem.Status == ChatListSubItem.UserStatus.QMe)
g.DrawImage(global::_CUSTOM_CONTROLS.Properties.Resources.QMe, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
if (subItem.Status == ChatListSubItem.UserStatus.Away)
g.DrawImage(global::_CUSTOM_CONTROLS.Properties.Resources.Away, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
if (subItem.Status == ChatListSubItem.UserStatus.Busy)
g.DrawImage(global::_CUSTOM_CONTROLS.Properties.Resources.Busy, new Rectangle(subItem.HeadRect.Right - 10, subItem.HeadRect.Bottom - 10, 11, 11));
if (subItem.Status == ChatListSubItem.UserStatus.DontDisturb)
g.DrawImage(global::_CUSTOM_CONTROLS.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);
}