/// <summary>
/// 绘制背景图片
/// </summary>
/// <param name="backBufferBitmap">当前双缓冲绘图缓存的背景图片</param>
/// <param name="g">与背景缓冲图绑定的绘图对象</param>
/// <param name="offsetPoint">偏移点，用于消除窗口最大化时窗口边框厚度对点计算造成的误差</param>
public void RenderImages(Image backBufferBitmap, Graphics g, Point offsetPoint)
{
//绘制按钮时，按照配置文件出现的顺序依次绘制，越晚出现的按钮越在上层
for (int i = 0; i < this._dUIImageList.Count; i++)
{
DUIImage image = this._dUIImageList[i];
image.Render(backBufferBitmap, g, offsetPoint);
}
}
/// <summary>
/// 从XML文档加载DUIImage对象列表
/// </summary>
/// <param name="xmlDoc"></param>
public void LoadDUIImageFromXml(XmlDocument xmlDoc)
{
if (xmlDoc == null)
{
throw new Exception("加载布局" + this._ownerLayout.Name + "中的贴图图片时，文档对象为空！");
}
XmlElement layoutElement = xmlDoc.DocumentElement;
foreach (XmlNode childNode in layoutElement.ChildNodes)
{
if (childNode.Name == "images")
{
foreach (XmlNode imageNode in childNode.ChildNodes)
{
if (imageNode.Name == "image")
{
if (imageNode.Attributes["sourceName"] != null &&
imageNode.Attributes["enable"] != null &&
imageNode.Attributes["top"] != null &&
imageNode.Attributes["left"] != null &&
imageNode.Attributes["right"] != null &&
imageNode.Attributes["bottom"] != null)
{
//enble属性为false,或者该属性不存在或非法值时，不加载该按钮
string enableString = imageNode.Attributes["enable"].Value;
if (string.IsNullOrEmpty(enableString) ||
(enableString.ToLower() != "true" && enableString.ToLower() != "false"))
{
continue;
}
bool enble = Convert.ToBoolean(enableString);
if (enble == false)
{
continue;
}
//创建按钮对象
DUIImage newImage = new DUIImage();
newImage.SourceName = imageNode.Attributes["sourceName"].Value;
newImage.Top = Convert.ToInt32(imageNode.Attributes["top"].Value);
newImage.Left = Convert.ToInt32(imageNode.Attributes["left"].Value);
newImage.Right = Convert.ToInt32(imageNode.Attributes["right"].Value);
newImage.Bottom = Convert.ToInt32(imageNode.Attributes["bottom"].Value);
this._dUIImageList.Add(newImage);
}
}
}
}
}
}