ArcGIS+Engine开发之TOCControl中实现图层的拖动功能

ArcGIS Engine开发之TOCControl中实现图层的拖动功能publicTocHelper(ESRI.ArcGIS.TOCControl.AxTOCControltoc) m_toc=toc;m_LyMenu=newLayerPopmenu(this);m_LyMenu.TOCControl=m_toc;m_FrameMenu.TOCControl=m_toc; 本文来GIS公园m_toc.LabelEdit=esriTOCControlEdit.esriTOCControlManual;/*/处理事件 本文来GIS公园m_toc.OnMouseDown+=newITOCControlEvents_OnMouseDownEventHandler(m_toc_OnMouseDown);m_toc.OnMouseMove+=newITOCControlEvents_OnMouseMoveEventHandler(m_toc_OnMouseMove);m_toc.OnMouseUp+=newITOCControlEvents_OnMouseUpEventHandler(m_toc_OnMouseUp); copyright m_toc.OnBeginLabelEdit+=newITOCControlEvents_OnBeginLabelEditEventHandler(m_toc_OnBeginLabelEdit);m_toc.OnEndLabelEdit+=newITOCControlEvents_OnEndLabelEditEventHandler(m_toc_OnEndLabelEdit);内容来自publicvoidSetMoveLine(System.Windows.Forms.Controlline) 本文来GIS公园 m_MovingLine=line;m_MovingLine.Size=newSystem.Drawing.Size(100,2);m_MovingLine.BackColor=System.Drawing.Color.Black; GIS公园-GIS专业网站m_MovingLine.Visible=false;privateDevExpress.XtraBars.BarManagerm_pBarManager;publicvoidSetBarManager(DevExpress.XtraBars.BarManagerbarMan) 内容来自 GIS公园-GIS专业网站m_pBarManager=barMan;m_LyMenu.SetBarManager(barMan);m_FrameMenu.SetBarManager(barMan);/*/ 本文来GIS公园/获取当前图层/publicESRI.ArcGIS.Carto.ILayerCurrentLayer 内容来自get GIS公园-GIS专业网站 returnm_layer;/*/ 内容来自/刷新视图/privatevoidRefreshView(ILayerlayer) 本文来GIS公园 copyright if(m_toc=null)return;if(m_toc.Buddy=null) copyright return;IActiveViewpView=null;if(m_toc.BuddyisESRI.ArcGIS.MapControl.IMapControl2) 内容来自 GIS公园-GIS专业网站pView=(m_toc.BuddyasESRI.ArcGIS.MapControl.IMapControl2).ActiveView;elseif(m_toc.BuddyisESRI.ArcGIS.SceneControl.ISceneControl) GIS公园-GIS专业网站 IScenescene=(m_toc.BuddyasESRI.ArcGIS.SceneControl.ISceneControl).Scene;if(sceneisIActiveView)pView=sceneasIActiveView; copyright if(pView!=null) 本文来GIS公园 if(layer!=null)pView.PartialRefresh(esriViewDrawPhase.esriViewGeography,layer,pView.Extent);elsepView.Refresh(); privateintm_DragStartY;publicintMouseX,MouseY; copyright privateintm_TextHeight=18;privatevoidm_toc_OnMouseDown(objectsender,ITOCControlEvents_OnMouseDownEvente) GIS公园-GIS专业网站 /*/选中对象 ITOCControlm_TOCControl=(ITOCControl)m_toc.Object;esriTOCControlItemitem=esriTOCControlItem.esriTOCControlItemNone;ILayerlayer=null;IBasicMapmap=null; m_TOCControl.HitTest(e.x,e.y,refitem,refmap,reflayer,refm_other,refm_index);MouseX=e.x;MouseY=e.y;m_DragStartY=e.y; /设置当前图层/if(item=esriTOCControlItem.esriTOCControlItemLayer)/if(m_layer!=layer) 内容来自 GIS公园-GIS专业网站 m_layer=layer;if(CurrentLayerChanged!=null)CurrentLayerChanged(); /else/if(m_layer!=null)/ /m_layer=null;/if(CurrentLayerChanged!=null)/CurrentLayerChanged();/ 本文来GIS公园 /m_LyMenu.CurrentLayer=m_layer;m_FrameMenu.CurrentLayer=m_layer;/如果点中的图例，则弹出符号设置窗口 copyright if(e.button=1)&(item=esriTOCControlItem.esriTOCControlItemLegendClass) ILegendGrouplegendGroup;ILegendClasslegendClass;legendGroup=m_otherasILegendGroup;Debug.Assert(legendGroup!=null); GIS公园-GIS专业网站legendClass=legendGroup.get_Class(Convert.ToInt32(m_index.ToString();Debug.Assert(legendClass!=null);ISymbolpSymbol=legendClass.Symbol;本文来GIS公园 /选择符号窗口代码去掉了。return;/如果是鼠标右键，则弹出右键菜单 GIS公园-GIS专业网站 if(e.button=2) copyright System.Diagnostics.Debug.Assert(m_pBarManager!=null);if(item=esriTOCControlItem.esriTOCControlItemLayer)&(layer!=null) GIS公园-GIS专业网站 m_pBarManager.SetPopupContextMenu(m_toc,m_LyMenu.PopMenu);elseif(item=esriTOCControlItem.esriTOCControlItemMap) copyright m_pBarManager.SetPopupContextMenu(m_toc,m_FrameMenu.PopMenu);else 内容来自 m_pBarManager.SetPopupContextMenu(m_toc,null);return;本文来GIS公园 /如果鼠标左键选中了一个图层，则设为拖动状态if(e.button=1)&(layer!=null) copyright copyright m_Dragging=true;m_DestLayer=null; GIS公园-GIS专业网站 m_TextHeight=m_toc.Parent.Font.Height+2;privateintGetLayerIndex(IBasicMapmap,ILayerlayer,boolDragUp) 内容来自 ILayertmpLayer;for(inti=0;i=map.LayerCount-1;i+) copyright tmpLayer=map.get_Layer(i);if(tmpLayer=layer) 本文来GIS公园 if(DragUp=true)returni-1;else GIS公园-GIS专业网站returni;return0; GIS公园-GIS专业网站 privateintGetLayerIndex(ICompositeLayergroupLayer,ILayerlayer,boolDragUp) for(inti=0;im_DragStartY)/向下拖放 GIS公园-GIS专业网站yy=Convert.ToInt32(Math.Floor(e.y/m_TextHeight)*m_TextHeight)+m_TextHeight;else/向上拖放 内容来自 yy=Convert.ToInt32(Math.Floor(e.y/m_TextHeight)*m_TextHeight);m_MovingLine.Location=newSystem.Drawing.Point(30,yy); copyright m_MovingLine.Width=m_toc.Width-35;m_MovingLine.Visible=true;m_toc.MousePointer=ESRI.ArcGIS.SystemUI.esriControlsMousePointer.esriPointerDefault; GIS公园-GIS专业网站 m_DragToCorrectPos=true;else 本文来GIS公园 m_MovingLine.Visible=false;m_toc.MousePointer=ESRI.ArcGIS.SystemUI.esriControlsMousePointer.esriPointerDefault; 本文来GIS公园/*/ /取得图层的上一级对象，可能是igrouplayer,或ibasicmap/ GIS公园-GIS专业网站 /privateobjectGetLayerParent(IBasicMapmap,ILayerlayer) copyright ILayertmpLayer;for(inti=0;i=map.LayerCount-1;i+) tmpLayer=map.get_Layer(i);if(tmpLayer=layer) copyright returnmap;elseif(tmpLayerisIGroupLayer) GIS公园-GIS专业网站IGroupLayerly=FindParentGroupLayer(tmpLayerasIGroupLayer,layer);if(ly!=null)returnly; 内容来自returnmap;privateIGroupLayerFindParentGroupLayer(IGroupLayergroupLayer,ILayerlayer) copyright if(!(groupLayerisICompositeLayer) 本文来GIS公园returngroupLayer;ICompositeLayercomLayer=groupLayerasICompositeLayer;ILayertmpLayer; 本文来GIS公园for(inti=0;i=comLayer.Count-1;i+) GIS公园-GIS专业网站tmpLayer=comLayer.get_Layer(i);if(tmpLayer=layer)returngroupLayer;elseif(tmpLayerisIGroupLayer) 本文来GIS公园 returnFindParentGroupLayer(tmpLayerasIGroupLayer,layer);returnnull; /*/ copyright /在grouplayer中移动图层/ GIS公园-GIS专业网站 /privatevoidMoveLayerTo(IGroupLayerpGroupLayer,ILayerpLayer,intnIndex) ICompositeLayerpCompositeLayer=pGroupLayerasICompositeLayer;/if(pCompositeLayer.Count2)/return; 本文来GIS公园if(pCompositeLayer.Count-1=nIndex) 本文来GIS公园pGroupLayer.Delete(pLayer);pGroupLayer.Add(pLayer);return;IArraypArray=newArrayClass(); 内容来自for(inti=0;ipCompositeLayer.Count;i+) 内容来自pArray.Add(pCompositeLayer.get_Layer(i);pGroupLayer.Clear();ILayerpLayer1;for(inti=0;ipArray.Count;i+) 内容来自 本文来GIS公园 if(pCompositeLayer.Count=nIndex) GIS公园-GIS专业网站pGroupLayer.Add(pLayer);pLayer1=pArray.get_Element(i)asILayer;if(pLayer1=pLayer) 本文来GIS公园 continue;pGroupLayer.Add(pLayer1); copyright privatevoidm_toc_OnMouseUp(objectsender,ITOCControlEvents_OnMouseUpEvente) copyright if(m_Dragging=true) checkdraggingconditions#regioncheckdraggingconditions 本文来GIS公园m_Dragging=false;m_toc.MousePointer=ESRI.ArcGIS.SystemUI.esriControlsMousePointer.esriPointerDefault;if(m_toc=null) 内容来自return;if(m_toc.Buddy=null)return;if(m_DragToCorrectPos=false) copyright return;m_DragToCorrectPos=false;m_MovingLine.Visible=false;GIS公园-GIS专业网站 IMapmap=null;IScenescene=null;if(m_toc.BuddyisIMapControl2) 本文来GIS公园 map=(m_toc.BuddyasIMapControl2).Map;elseif(m_toc.BuddyisESRI.ArcGIS.SceneControl.ISceneControl) 本文来GIS公园 本文来GIS公园 scene=(m_toc.BuddyasESRI.ArcGIS.SceneControl.ISceneControl).Scene;else 本文来GIS公园 return;IBasicMapbmap;if(map!=null) GIS公园-GIS专业网站 bmap=mapasIBasicMap;elsebmap=sceneasIBasicMap; 本文来GIS公园 if(bmap.LayerCount=0)return;#endregioncopyright booldestIgnoreGroupLayer=false;if(m_DestIsMap=true) GIS公园-GIS专业网站 m_DestLayer=bmap.get_Layer(0);destIgnoreGroupLayer=true;copyright if(m_DestLayer=null)return;if(m_layer=m_DestLayer) GIS公园-GIS专业网站 return;boolDragUp;/是否正向上拖放DragUp=(e.ym_DragStartY); intdestIndex;objectbuddy=m_toc.Buddy;m_toc.SetBuddyControl(null); try objectsrcGroupLayer=GetLayerParent(bmap,m_layer);objectdestGroupLayer=GetLayerParent(bmap,m_DestLayer); 本文来GIS公园/先删除源图层if(srcGroupLayerisGroupLayer)(srcGroupLayerasIGroupLayer).Delete(m_layer);