public override IElement GetElement(IPageLayout ipageLayout_0)
{
if (!((base.m_pElement != null) && this.bool_0))
{
this.bool_0 = true;
this.CreateElement(ipageLayout_0);
}
if (base.m_pElement == null)
{
return(null);
}
IPoint position = this.GetPosition(ipageLayout_0);
IEnvelope bounds = new EnvelopeClass();
base.m_pElement.QueryBounds((ipageLayout_0 as IActiveView).ScreenDisplay, bounds);
if ((base.m_pElement as IMapSurroundFrame).MapSurround is IScaleText)
{
IScaleText mapSurround = (base.m_pElement as IMapSurroundFrame).MapSurround as IScaleText;
try
{
mapSurround.Map = (ipageLayout_0 as IActiveView).FocusMap;
mapSurround.Refresh();
switch (base.ElementLocation.LocationType)
{
case LocationType.LeftUpper:
case LocationType.LeftCenter:
case LocationType.LeftLower:
position.X -= bounds.Height;
goto Label_0112;
case LocationType.RightUpper:
case LocationType.RightCenter:
case LocationType.RightLower:
goto Label_0112;
case LocationType.LowerLeft:
case LocationType.LowerCenter:
case LocationType.LowerRight:
position.Y -= bounds.Height;
goto Label_0112;
}
}
catch
{
}
}
Label_0112:
if (!bounds.IsEmpty)
{
IEnvelope envelope2 = new EnvelopeClass();
envelope2.PutCoords(position.X, position.Y, position.X + bounds.Width, position.Y + bounds.Height);
base.m_pElement.Geometry = envelope2;
}
return(base.m_pElement);
}
//创建比例尺
private void CreateScale()
{
if (StyleGalleryItem == null)
{
return;
}
IGraphicsContainer pGraphicsContainer = m_hookHelper.ActiveView.GraphicsContainer;
IMapFrame pMapFrame = pGraphicsContainer.FindFrame(m_hookHelper.ActiveView.FocusMap) as IMapFrame;
if (pMapFrame == null)
{
return;
}
if (StyleGalleryItem.Item is IScaleBar)
{
IScaleBar pScaleBar = (IScaleBar)StyleGalleryItem.Item;
pScaleBar.Refresh();
IMapSurroundFrame pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame.MapFrame = pMapFrame;
pMapSurroundFrame.MapSurround = (IMapSurround)pScaleBar;
IElement pElement = (IElement)pMapSurroundFrame;
//添加和指北针一样大小的窗口
double pScaleBarSize = 15;
//显示结果大小
IActiveView pActiveView = m_hookHelper.ActiveView;
IPageLayout pPageLayout = (IPageLayout)pActiveView;
IPage pPage = pPageLayout.Page;
double pWidth = pPage.PrintableBounds.XMin + 2;
double pHeigth = pPage.PrintableBounds.YMin + 2;
IEnvelope pEnv = new EnvelopeClass();
pEnv.PutCoords(pWidth, pHeigth, pWidth + 10, pHeigth + 1);
pElement.Geometry = (IGeometry)pEnv;
//Add the element to the graphics container
pGraphicsContainer.AddElement((IElement)pMapSurroundFrame, 0);
//Refresh
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pMapSurroundFrame, null);
}
else if (StyleGalleryItem.Item is IScaleText)
{
IScaleText pScaleText = (IScaleText)StyleGalleryItem.Item;
pScaleText.Refresh();
IMapSurroundFrame pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame.MapFrame = pMapFrame;
pMapSurroundFrame.MapSurround = (IMapSurround)pScaleText;
IElement pElement = (IElement)pMapSurroundFrame;
//显示结果大小
IActiveView pActiveView = m_hookHelper.ActiveView;
IPageLayout pPageLayout = (IPageLayout)pActiveView;
IPage pPage = pPageLayout.Page;
double pWidth = pPage.PrintableBounds.XMin + 2;
double pHeigth = pPage.PrintableBounds.YMin + 2;
IEnvelope pEnv = new EnvelopeClass();
pEnv.PutCoords(pWidth, pHeigth, pWidth + 10, pHeigth + 1);
pElement.Geometry = (IGeometry)pEnv;
//Add the element to the graphics container
pGraphicsContainer.AddElement((IElement)pMapSurroundFrame, 0);
//Refresh
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pMapSurroundFrame, null);
}
}