[ArcEngine地图制图系列]—添加地图标题

来源：互联网发布：数据分析是怎么接兼职编辑：程序博客网时间：2024/04/30 17:55

添加地图标题的核心代码如下

        private IHookHelper m_hookHelper = null;
        private IPageLayoutControl2 axPageControl;
        private TitleForm frmTitle; //设置标题样式的窗体
        private string title = "";
        private System.Drawing.Font font ;
        private System.Drawing.Color color ;

/// <summary>

        /// Occurs when this command is clicked
        /// </summary>
        public override void OnClick()
        {
            // TODO: Add AddTitleCommand.OnClick implementation

            IEnvelope pEnvelope = PageManager.GetEnvelopeInPage2(axPageControl, 0.5, 0.9, 2, 1);
            if (pEnvelope.IsEmpty || pEnvelope == null || pEnvelope.Width == 0 || pEnvelope.Height == 0)
            {
                return;
            }
            else
            {
                if (frmTitle == null || frmTitle.IsDisposed == true)
                {
                    frmTitle = new TitleForm();
                    frmTitle.GetTitleText += new TitleForm.GetTitleTextEventHandler(frmTitle_GetTitleText);
                }
                frmTitle.ShowDialog();

                AddTitle(axPageControl.ActiveView, pEnvelope, this.title,this.font,this.color);
                pEnvelope = null;
            }
        }

        #endregion

        //设置标题样式的委托函数
        private void frmTitle_GetTitleText(ref string newName, ref System.Drawing.Font newFont, ref System.Drawing.Color newColor)
        {
            this.title = newName;
            this.font = newFont;
            this.color = newColor;
        }

        private void AddTitle(IActiveView pActiveView, IEnvelope pEnv,string myTitle, System.Drawing.Font myFont,System.Drawing.Color myColor)
        {
            try
            {
                IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)axPageControl.PageLayout;
                //设置文本格式
                ITextSymbol pTextSymbol = new TextSymbolClass();
                //StdFont myFont = new stdole.StdFontClass();
                //myFont.Name = "宋体";
                pTextSymbol.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(myFont) as IFontDisp; ;
                //pTextSymbol.Size = pSize;
                pTextSymbol.Color = ColorUtilty.GetRgbColor(myColor.R, myColor.G, myColor.B); ;
                pTextSymbol.Angle = 0;
                pTextSymbol.RightToLeft = false;//文本由左向右排列
                pTextSymbol.VerticalAlignment = esriTextVerticalAlignment.esriTVACenter;//垂直方向基线对齐
                pTextSymbol.HorizontalAlignment = esriTextHorizontalAlignment.esriTHALeft;//文本两端对齐
                pTextSymbol.Text = myTitle;
                ITextElement pTextElement = new TextElementClass();
                pTextElement.Symbol = pTextSymbol;
                pTextElement.Text = pTextSymbol.Text;

                IElement pElement = axPageControl.FindElementByName("Title");//获取PageLayout中的元素
                if (pElement != null)
                {
                    pGraphicsContainer.DeleteElement(pElement); //删除已经存在标题
                }

                IElementProperties pElePro = null;
                pElement = (IElement)pTextElement;
                pElement.Geometry = (IGeometry)pEnv.UpperLeft;
                pElePro = pElement as IElementProperties;
                pElePro.Name = "Title";
                pGraphicsContainer.AddElement(pElement, 0);
                pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);

            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }
        }

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