//更新图例
private void UpdateLegend()
{
//边框、背景、阴影的间距
if (txtBorderGap.Text != null && pSymbolBorder != null)
{
pSymbolBorder.Gap = double.Parse(this.txtBorderGap.Text);
}
if (txtBackgroundGap.Text != null && pSymbolBackground != null)
{
pSymbolBackground.Gap = double.Parse(this.txtBackgroundGap.Text);
}
if (txtShadowX.Text != null && pSymbolShadow != null)
{
pSymbolShadow.VerticalSpacing = double.Parse(this.txtShadowX.Text);
}
if (txtShadowY.Text != null && pSymbolShadow != null)
{
pSymbolShadow.HorizontalSpacing = double.Parse(this.txtShadowY.Text);
}
//边框、背景、阴影的角度
if (txtBorderAngle.Text != null && pSymbolBorder != null)
{
pSymbolBorder.CornerRounding = short.Parse(txtBorderAngle.Text);
}
if (txtBackgroundAngle.Text != null && pSymbolBackground != null)
{
pSymbolBackground.CornerRounding = short.Parse(txtBackgroundAngle.Text);
}
if (txtShadowAngle.Text != null && pSymbolShadow != null)
{
pSymbolShadow.CornerRounding = short.Parse(txtShadowAngle.Text);
}
//边框、背景、阴影
IFrameProperties pFrameProperties = pMapSurroundFrame as IFrameProperties;
if (pSymbolBorder != null)
{
pFrameProperties.Border = pSymbolBorder;
}
if (pSymbolBackground != null)
{
pFrameProperties.Background = pSymbolBackground;
}
if (pSymbolShadow != null)
{
pFrameProperties.Shadow = pSymbolShadow;
}
ILegendFormat pLegendFormat = new LegendFormatClass();
//标题设置 显示
if (this.cBoxShowTitle.Checked == true)
{
pLegendFormat.ShowTitle = true;
}
else
{
pLegendFormat.ShowTitle = false;
}
//标题样式
if (pTitleSymbol != null)
{
pLegendFormat.TitleSymbol = pTitleSymbol;
}
//图面样式以及高度和样式设计
if (pLinePatch != null)
{
pLegendFormat.DefaultLinePatch = pLinePatch;
}
if (pAreaPatch != null)
{
pLegendFormat.DefaultAreaPatch = pAreaPatch;
}
if (txtPatchWith.Text != null)
{
pLegendFormat.DefaultPatchWidth = double.Parse(txtPatchWith.Text);
}
if (txtPatchHeight.Text != null)
{
pLegendFormat.DefaultPatchHeight = double.Parse(txtPatchHeight.Text);
}
//第四界面从上到下图例各部分之间的距离
pLegendFormat.TitleGap = double.Parse(txtTitleAndLegend.Text);
pLegendFormat.VerticalItemGap = double.Parse(txtLegendItems.Text);
pLegendFormat.HorizontalItemGap = double.Parse(txtColumns.Text);
pLegendFormat.HeadingGap = double.Parse(txtHeadings.Text);
pLegendFormat.TextGap = double.Parse(txtLabelsAndDescription.Text);
pLegendFormat.VerticalPatchGap = double.Parse(txtPatchesV.Text);
pLegendFormat.HorizontalPatchGap = double.Parse(txtPatchAndLabels.Text);
//样式添加到图例
Legend.Title = this.txtLegendTitle.Text;
Legend.Format = pLegendFormat;
//地图链接
Legend.AutoVisibility = cBoxAddVisibleLayer.Checked; //只显示显示的图层
Legend.AutoAdd = cBoxAddNewLayer.Checked; //自动添加显示的图层
Legend.AutoReorder = cBoxNewOrder.Checked; //按照图层顺序排列图例
//Legend.ClearItems();
//Legend.Refresh();
//图例列数
double pLegendColumn = double.Parse(this.LegendColumn.Text);
//图例中要包含的图层个数为 pSelectedidx.Count
double pLegendItemCount = pSelectedidx.Count;
//计算图例分裂的位置
int ColumnPos = (int)(pLegendItemCount / pLegendColumn);
double remainder = (pLegendItemCount % pLegendColumn) / pLegendColumn;
if (remainder >= 0.5)
{
ColumnPos = ColumnPos + 1;
}
for (int i = 0; i < pSelectedidx.Count; i++)
{
ILegendItem pLegendItem = new HorizontalLegendItemClass();
pLegendItem.Layer = pMap.get_Layer(pSelectedidx[i]);
int lengendinex = 0;//记录同名图层在legend中的位置
for (int j = 0; j < Legend.ItemCount; j++)
{
if (Legend.Item[j].Layer == pLegendItem.Layer)
{
lengendinex = j;
break;
}
}
pLegendItem.ShowDescriptions = Legend.Item[lengendinex].ShowDescriptions;
pLegendItem.ShowHeading = Legend.Item[lengendinex].ShowHeading;
pLegendItem.ShowLabels = Legend.Item[lengendinex].ShowLabels;
pLegendItem.ShowLayerName = Legend.Item[lengendinex].ShowLayerName;
pLegendItem.HeadingSymbol = Legend.Item[lengendinex].HeadingSymbol;
pLegendItem.LayerNameSymbol = Legend.Item[lengendinex].LayerNameSymbol;
pLegendItem.LegendClassFormat = Legend.Item[lengendinex].LegendClassFormat;
//列数设置
//列数设置
if (ColumnPos <= 1)
{
pLegendItem.NewColumn = true;
}
else if (ColumnPos > 1 && i > 0)
{
int columnI = i % ColumnPos;
if (columnI == 0)
{
pLegendItem.NewColumn = true;
}
}
legendlist.Add(pLegendItem);
}
Legend.ClearItems();
Legend.Refresh();
for (int i = 0; i < legendlist.Count; i++)
{
Legend.AddItem(legendlist[i]);
}
ILegendLayout pLegendLayout = pLegendFormat as ILegendLayout;
pLegendLayout.ScaleGraphicsOnResize = false;
m_hookHelper.ActiveView.Refresh();
}
//创建图例
private void CreateLegend()
{
ILegendFormat pLegendFormat = new LegendFormatClass();
IMapSurroundFrame pMapSurroundFrame = new MapSurroundFrameClass();
pActiveView = m_hookHelper.ActiveView as IActiveView;
pMap = pActiveView.FocusMap;
//边框、背景、阴影的间距
if (txtLegendFrameGap.Text != null && pSymbolBorder != null)
{
pSymbolBorder.Gap = double.Parse(this.txtLegendFrameGap.Text);
}
if (txtLegendFrameGap.Text != null && pSymbolBackground != null)
{
pSymbolBackground.Gap = double.Parse(this.txtLegendFrameGap.Text);
}
if (txtLegendFrameGap.Text != null && pSymbolShadow != null)
{
pSymbolShadow.VerticalSpacing = double.Parse(this.txtLegendFrameGap.Text) + 10;
pSymbolShadow.HorizontalSpacing = double.Parse(this.txtLegendFrameGap.Text) + 10;
}
//边框、背景、阴影的角度
if (txtLegendFrameAngle.Text != null && pSymbolBorder != null)
{
pSymbolBorder.CornerRounding = short.Parse(txtLegendFrameAngle.Text);
}
if (txtLegendFrameAngle.Text != null && pSymbolBackground != null)
{
pSymbolBackground.CornerRounding = short.Parse(txtLegendFrameAngle.Text);
}
if (txtLegendFrameAngle.Text != null && pSymbolShadow != null)
{
pSymbolShadow.CornerRounding = short.Parse(txtLegendFrameAngle.Text);
}
//边框、背景、阴影
IFrameProperties pFrameProperties = pMapSurroundFrame as IFrameProperties;
if (pSymbolBorder != null)
{
pFrameProperties.Border = pSymbolBorder;
}
if (pSymbolBackground != null)
{
pFrameProperties.Background = pSymbolBackground;
}
if (pSymbolShadow != null)
{
pFrameProperties.Shadow = pSymbolShadow;
}
//显示标题
pLegendFormat.ShowTitle = true;
//标题位置
pLegendFormat.TitlePosition = esriRectanglePosition.esriTopSide;
//标题样式
pLegendFormat.TitleSymbol = CreateTitleSymbol();
//第四界面从上到下图例各部分之间的距离
pLegendFormat.TitleGap = double.Parse(txtTitleAndLegend.Text);
pLegendFormat.VerticalItemGap = double.Parse(txtLegendItems.Text);
pLegendFormat.HorizontalItemGap = double.Parse(txtColumns.Text);
pLegendFormat.HeadingGap = double.Parse(txtHeadings.Text);
pLegendFormat.TextGap = double.Parse(txtLabelsAndDescription.Text);
pLegendFormat.VerticalPatchGap = double.Parse(txtPatchesV.Text);
pLegendFormat.HorizontalPatchGap = double.Parse(txtPatchAndLabels.Text);
pLegendFormat.LayerNameGap = 2;
//图面的样式以及高度和宽度
if (pLinePatch != null)
{
pLegendFormat.DefaultLinePatch = pLinePatch;
}
if (pAreaPatch != null)
{
pLegendFormat.DefaultAreaPatch = pAreaPatch;
}
pLegendFormat.DefaultPatchHeight = double.Parse(this.txtPatchHeight.Text);
pLegendFormat.DefaultPatchWidth = double.Parse(this.txtPatchWith.Text);
//创建图例
ILegend pLegend = new LegendClass_2();
//图例名称
//pLegend.Name = this.txtLegendTitle.Text;
pLegend.AutoVisibility = false; //显示显示的图层
pLegend.AutoAdd = false; //自动添加新数据到图例
pLegend.AutoReorder = true; //根据图层顺序自动排列
pLegend.Title = this.txtLegendTitle.Text;
pLegend.Format = pLegendFormat;
pLegend.Map = pMap;
pLegend.ClearItems();
//pLegend.Refresh();
//图例列数
double pLegendColumn = double.Parse(this.LegendColumn.Text);
//图例中要包含的图层个数为 pSelectedidx.Count
double pLegendItemCount = pSelectedidx.Count;
//计算图例分裂的位置
int ColumnPos = (int)(pLegendItemCount / pLegendColumn);
double remainder = (pLegendItemCount % pLegendColumn) / pLegendColumn;
if (remainder >= 0.5)
{
ColumnPos = ColumnPos + 1;
}
//设置添加到图例的图层
for (int i = 0; i < pSelectedidx.Count; i++)
{
ILegendItem pLegendItem = new HorizontalLegendItemClass();
ILayer pLayer = (ILayer)(pMap.get_Layer(pSelectedidx[i]));
if (!pLayer.Valid)
{
continue;
}
pLegendItem.Layer = pLayer;
//显示标注和描述
pLegendItem.ShowDescriptions = true;
pLegendItem.ShowLabels = true;
//标注和描述字体样式
ITextSymbol pLDTextSymbol = new TextSymbolClass();
IFontDisp pLDFont = new StdFontClass() as IFontDisp;
IRgbColor pLDColor = new RgbColorClass();
pLDColor.Red = 0;
pLDColor.Green = 0;
pLDColor.Blue = 0;
pLDTextSymbol.Color = pLDColor;
pLDFont.Size = (decimal)8;
pLDFont.Name = "宋体";
pLDTextSymbol.Font = pLDFont;
ILegendClassFormat pLegendClassFormat = new LegendClassFormatClass();
pLegendClassFormat.LabelSymbol = pLDTextSymbol;
pLegendClassFormat.DescriptionSymbol = pLDTextSymbol;
pLegendItem.LegendClassFormat = pLegendClassFormat;
//图层名称是否显示
if (pLegendItem.Layer is IFeatureLayer)
{
if (((IGeoFeatureLayer)pLegendItem.Layer).Renderer is ISimpleRenderer)
{
pLegendItem.ShowHeading = false;
pLegendItem.ShowLayerName = false;
}
else
{
pLegendItem.ShowLayerName = true;
pLegendItem.ShowHeading = true;
//图层名称和头文件的样式
ITextSymbol pLHTextSymbol = new TextSymbolClass();
IFontDisp pLHFont = new StdFontClass() as IFontDisp;
IRgbColor pLHColor = new RgbColorClass();
pLDColor.Red = 0;
pLDColor.Green = 0;
pLDColor.Blue = 0;
pLHTextSymbol.Color = pLHColor;
pLHFont.Name = "宋体";
pLHFont.Size = 10;
pLHFont.Bold = true;
pLHTextSymbol.Font = pLHFont;
pLHTextSymbol.HorizontalAlignment = esriTextHorizontalAlignment.esriTHALeft;
pLegendItem.HeadingSymbol = pLHTextSymbol;
pLegendItem.LayerNameSymbol = pLHTextSymbol;
}
}
else if (pLegendItem.Layer is IRasterLayer)
{
pLegendItem.ShowLayerName = true;
pLegendItem.ShowHeading = true;
//图层名称和头文件的样式
ITextSymbol pLHTextSymbol = new TextSymbolClass();
IFontDisp pLHFont = new StdFontClass() as IFontDisp;
IRgbColor pLHColor = new RgbColorClass();
pLDColor.Red = 0;
pLDColor.Green = 0;
pLDColor.Blue = 0;
pLHTextSymbol.Color = pLHColor;
pLHFont.Name = "宋体";
pLHFont.Size = 10;
pLHFont.Bold = true;
pLHTextSymbol.Font = pLHFont;
pLHTextSymbol.HorizontalAlignment = esriTextHorizontalAlignment.esriTHALeft;
pLegendItem.HeadingSymbol = pLHTextSymbol;
pLegendItem.LayerNameSymbol = pLHTextSymbol;
}
//列数设置
if (ColumnPos <= 1)
{
pLegendItem.NewColumn = true;
}
else if (ColumnPos > 1 && i > 0)
{
int columnI = i % ColumnPos;
if (columnI == 0)
{
pLegendItem.NewColumn = true;
}
}
ILegendLayout pLegendLayout = pLegendFormat as ILegendLayout;
pLegendLayout.ScaleGraphicsOnResize = false;
//将图层及样式设计加入图例中
pLegend.AddItem(pLegendItem);
pLegend.Refresh();
}
//将图例加载到PageLayout上
IGraphicsContainer pGraphicsContainer = pActiveView.GraphicsContainer;
IMapFrame pMapFrame = pGraphicsContainer.FindFrame(pMap) as IMapFrame;
if (pMapFrame == null)
{
return;
}
pMapSurroundFrame.MapFrame = pMapFrame;
pMapSurroundFrame.MapSurround = (IMapSurround)pLegend;
IElement pElement = (IElement)pMapSurroundFrame;
IPageLayout pPageLayout = (IPageLayout)pActiveView;
IPage pPage = pPageLayout.Page;
double pWidth = pPage.PrintableBounds.XMax / 10.0;
double pHeigth = pPage.PrintableBounds.YMin / 10.0;
IEnvelope pEnvelope = new EnvelopeClass();
pEnvelope.PutCoords(pWidth, pHeigth, pWidth + 6, pHeigth + 6);
pElement.Geometry = (IGeometry)pEnvelope;
pGraphicsContainer.AddElement((IElement)pMapSurroundFrame, 0);
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pMapSurroundFrame, null);
}