/// <summary>
/// 出图的元素信息
/// </summary>
/// <param name="name">元素名称或元素文本标识</param>
/// <param name="type">元素类别</param>
/// <param name="value">元素内容</param>
/// <param name="setValueType">表示设置元素的哪一类属性</param>
public ElementInfo(string name, EPageElementType type, object value, EElementValueType setValueType = EElementValueType.Text)
{
Name = name;
Type = type;
Value = value;
ValueType = setValueType;
}
/// <summary>
/// 设置元素的属性值
/// </summary>
/// <param name="elements">需要设置属性值的同一类元素</param>
/// <param name="valueType">表示设置哪一类元素属性</param>
/// <param name="value">元素的属性值</param>
protected virtual void SetElementsValue(IEnumerable <IElement> elements, EElementValueType valueType, object value)
{
switch (valueType)
{
case EElementValueType.Name:
foreach (var element in elements)
{
((IElementProperties)element).Name = value.ToString();
}
break;
case EElementValueType.Text:
foreach (var element in elements)
{
if (element is ITextElement textElemet)
{
textElemet.Text = value.ToString();
}
}
break;
case EElementValueType.Size:
throw new NotImplementedException();
case EElementValueType.Location:
if (value is IPoint point)
{
foreach (var element in elements)
{
element.Geometry = point;
}
}
else if (value is double[] xyPair)
{
IPoint pt = new PointClass {
X = xyPair[0], Y = xyPair[1]
};
foreach (var element in elements)
{
element.Geometry = pt;
}
}
else if (value is System.Drawing.Point sysPoint)
{
IPoint pt = new PointClass {
X = sysPoint.X, Y = sysPoint.Y
};
foreach (var element in elements)
{
element.Geometry = pt;
}
}
break;
case EElementValueType.Anchor:
if (Enum.TryParse <esriAnchorPointEnum>(value.ToString(), out var eValue))
{
foreach (var element in elements)
{
((IElementProperties3)element).AnchorPoint = eValue;
}
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(valueType), valueType, null);
}
}
