//支持6中element，点，线，面，注记，Inkgraphic，MapFrame
private bool GetProperty(IDisplay pDisplay, IElement pElement)
{
try
{
//获得ＦｒａｍｅＥＬＥｍｅｎｔ的属性
if (pElement is IFrameElement)
{
IFrameProperties pFrameProperty = (IFrameProperties)pElement;
IFrameDecoration pFrameDecoration = null;
IClone pClone;
int i;
bool bExist = false;
//得到地图边框属性
if (pFrameProperty.Border != null)
{
pFrameDecoration = (IFrameDecoration)pFrameProperty.Border;
//判断和列表框中的符号是否相同
bExist = false;
for (i = 0; i < cmbBorder.Items.Count; i++)
{
pClone = (IClone)pFrameProperty.Border;
DevComponents.Editors.ComboItem item = cmbBorder.Items[i] as DevComponents.Editors.ComboItem;
if (item == null)
{
continue;
}
if (pClone.Equals(item.Tag))
{
bExist = true;
break;
}
}
if (bExist)
{
cmbBorder.SelectedIndex = i;
}
else
{
PreViewCustom(cmbBorder, pFrameProperty.Border, esriSymbologyStyleClass.esriStyleClassBorders);
}
GetDecorationColor(pFrameDecoration, btnBorderColor);
numBorderGapX.Value = (decimal)pFrameDecoration.HorizontalSpacing;
numBorderGapY.Value = (decimal)pFrameDecoration.VerticalSpacing;
numBorderRound.Value = (decimal)pFrameDecoration.CornerRounding;
}
//得到地图背景属性
if (pFrameProperty.Background != null)
{
pFrameDecoration = (IFrameDecoration)((IFrameElement)pElement).Background;
//判断和列表框中的符号是否相同
bExist = false;
for (i = 0; i < cmbBack.Items.Count; i++)
{
pClone = (IClone)pFrameProperty.Background;
DevComponents.Editors.ComboItem item = cmbBack.Items[i] as DevComponents.Editors.ComboItem;
if (item == null)
{
continue;
}
if (pClone.Equals(item.Tag))
{
bExist = true;
break;
}
}
if (bExist)
{
cmbBack.SelectedIndex = i;
}
else
{
PreViewCustom(cmbBack, pFrameProperty.Background, esriSymbologyStyleClass.esriStyleClassBackgrounds);
}
GetDecorationColor(pFrameDecoration, btnBackColor);
numBackGapX.Value = (decimal)pFrameDecoration.HorizontalSpacing;
numBackGapY.Value = (decimal)pFrameDecoration.VerticalSpacing;
numBackRound.Value = (decimal)pFrameDecoration.CornerRounding;
}
//得到地图阴影属性
if (pFrameProperty.Shadow != null)
{
pFrameDecoration = (IFrameDecoration)pFrameProperty.Shadow;
//判断和列表框中的符号是否相同
bExist = false;
for (i = 0; i < cmbShadow.Items.Count; i++)
{
pClone = (IClone)pFrameProperty.Shadow;
DevComponents.Editors.ComboItem item = cmbShadow.Items[i] as DevComponents.Editors.ComboItem;
if (item == null)
{
continue;
}
if (pClone.Equals(item.Tag))
{
bExist = true;
break;
}
}
if (bExist)
{
cmbShadow.SelectedIndex = i;
}
else
{
PreViewCustom(cmbShadow, pFrameProperty.Shadow, esriSymbologyStyleClass.esriStyleClassShadows);
}
GetDecorationColor(pFrameDecoration, btnShadowColor);
numShadowGapX.Value = (decimal)pFrameDecoration.HorizontalSpacing;
numShadowGapY.Value = (decimal)pFrameDecoration.VerticalSpacing;
numShadowRound.Value = (decimal)pFrameDecoration.CornerRounding;
}
}
IElementProperties3 pElementProp = pElement as IElementProperties3;
txtName.Text = pElementProp.Name;
IEnvelope pBounds = new EnvelopeClass();
pElement.QueryBounds(pDisplay, pBounds);
IArea pArea = (IArea)pBounds;
numCenterX.Text = pArea.Centroid.X.ToString("f4");
numCenterY.Text = pArea.Centroid.Y.ToString("f4");
numHeight.Text = pBounds.Height.ToString("f4");
numWidth.Text = pBounds.Width.ToString("f4");
numLowerLeftX.Text = pBounds.LowerLeft.X.ToString("f4");
numLowerLeftY.Text = pBounds.LowerLeft.Y.ToString("f4");
if (pElement is IMarkerElement)
{
IMarkerElement pMrkElement = pElement as IMarkerElement;
picPoint.Tag = pMrkElement.Symbol;
PreViewSymbol((ISymbol)picPoint.Tag, ref picPoint);
}
else if (pElement is ILineElement)
{
ILineElement pLinElement = pElement as ILineElement;
picLine.Tag = pLinElement.Symbol;
PreViewSymbol((ISymbol)picLine.Tag, ref picLine);
}
else if (pElement is IFillShapeElement)
{
IFillShapeElement pFillElement = pElement as IFillShapeElement;
picPoly.Tag = pFillElement.Symbol;
PreViewSymbol((ISymbol)picPoly.Tag, ref picPoly);
//得到面积
pArea = (IArea)pElement.Geometry;
numArea.Text = pArea.Area.ToString("0.00");
//得到周长
IPolygon pPolygon = new PolygonClass();
pElement.QueryOutline(m_pDisplay, pPolygon);
IRing pOutRing = new RingClass();
pPolygon.QueryExteriorRings(ref pOutRing);
numLength.Text = pOutRing.Length.ToString("0.00");
}
else if (pElement is ITextElement)
{
ITextElement pTxtElement = pElement as ITextElement;
txtText.Text = pTxtElement.Text;
picText.Tag = pTxtElement.Symbol;
PreViewSymbol((ISymbol)picText.Tag, ref picText);
}
if (pElement is IFrameElement)
{
//判断指北针,比例尺,比例文本
IMapSurroundFrame pMapSurroundFrame = pElement as IMapSurroundFrame;
if (pMapSurroundFrame != null)
{
IMapSurround pMapSurround = pMapSurroundFrame.MapSurround;
if (pMapSurround != null)
{
if (pMapSurround is INorthArrow)
{
picArrow.Tag = pMapSurround;
PreViewSymbol(pMapSurround, ref picArrow);
}
else if (pMapSurround is IScaleBar)
{
picScale.Tag = pMapSurround;
PreViewSymbol(pMapSurround, ref picScale);
}
else if (pMapSurround is IScaleText)
{
picScaleText.Tag = pMapSurround;
PreViewSymbol(pMapSurround, ref picScaleText);
}
}
}
}
return(true);
}
catch (Exception ex)
{
MessageBox.Show("显示属性出错:" + ex.Message);
return(false);
}
}