public override IElement GetElement(IPageLayout ipageLayout_0)
{
if (base.m_pElement == null)
{
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 ILegend)
{
ILegend mapSurround = (base.m_pElement as IMapSurroundFrame).MapSurround as ILegend;
mapSurround.Map = (ipageLayout_0 as IActiveView).FocusMap;
mapSurround.Refresh();
}
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);
}
private void button4_Click(object sender, System.EventArgs e)
{
//create the form with the SymbologyControl
Form2 symbolForm = new Form2();
//Get the IStyleGalleryItem that has been selected in the SymbologyControl
IStyleGalleryItem styleGalleryItem = symbolForm.GetItem(esriSymbologyStyleClass.esriStyleClassLinePatches);
//release the form
symbolForm.Dispose();
if (styleGalleryItem == null)
{
return;
}
//Find the legend
IElement element = axPageLayoutControl1.FindElementByName("Legend", 1);
if (element == null)
{
return;
}
//Get the IMapSurroundFrame
IMapSurroundFrame mapSurroundFrame = (IMapSurroundFrame)element;
if (mapSurroundFrame == null)
{
return;
}
//If a legend exists change the default area patch
ILegend legend = (ILegend)mapSurroundFrame.MapSurround;
legend.Format.DefaultLinePatch = (ILinePatch)styleGalleryItem.Item;
//Update the legend
legend.Refresh();
//Refresh the display
axPageLayoutControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
private void btnOK_Click(object sender, EventArgs e)
{
m_legend.Title = textBoxTitle.Text;
m_legend.ClearItems();
int mapCount = m_legend_Complete.ItemCount;
int legentCount = listBoxLegendItem.Items.Count;
for (int i = 0; i < legentCount; i++)
{
for (int j = 0; j < mapCount; j++)
{
if (listBoxLegendItem.Items[i].ToString() == listBoxMapItem.Items[j].ToString())
{
m_legend.AddItem(m_legend_Complete.get_Item(j));
}
}
}
if (checkBoxIsTitleShow.Checked == false)
{
m_legend.Title = "";
}
m_legend.Refresh();
}
//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();
}
