自定义arcengine编辑条 (能够撤销和重做）
http://bbs.esrichina-bj.cn/ESRI/viewthread.php?tid=75611&extra=&page=1
http://www.gisall.com/?uid-99501-mode-theme
代码
#region
IEditStack
interface
IEditStack
{
bool
IsEditing();
bool
HasEdited();
void
StartEditing();
void
SaveEditing(
bool
save);
void
StopEditing(
bool
save);
bool
HasRedo();
bool
HasUndo();
void
RodoEditing();
void
UndoEditing();
}
#endregion
代码
class
Edit : IEditStack
{
protected
bool
isEditing;
protected
bool
hasEditing;
protected
IFeatureLayer currentLayer;
//
当前编辑图层
protected
IWorkspaceEdit workspaceEdit;
protected
IMap map;
protected
List
<
IFeature
>
selectFeatures;
//
选择要素集，用于删除要素
public
Edit(IFeatureLayer editLayer, IMap map)
{
currentLayer
=
editLayer;
this
.map
=
map;
}
public
Edit()
{
}
#region
添加、选择、删除要素方法
///
<summary>
///
在当前图层添加要素
///
</summary>
///
<param name="geometry">
几何要素
</param>
public
void
AddFeature(IGeometry geometry)
{
if
(currentLayer
==
null
)
return
;
IFeatureClass featureClass
=
currentLayer.FeatureClass;
if
(featureClass.ShapeType
!=
geometry.GeometryType
||
geometry
==
null
)
return
;
if
(
!
isEditing)
{
MessageBox.Show(
"
请先开启编辑
"
);
return
;
}
try
{
workspaceEdit.StartEditOperation();
IFeature feature;
feature
=
featureClass.CreateFeature();
feature.Shape
=
geometry;
feature.Store();
workspaceEdit.StopEditOperation();
//
高亮显示添加要素
map.ClearSelection();
map.SelectFeature(currentLayer
as
ILayer, feature);
((IActiveView)map).PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,
null
,
null
);
hasEditing
=
true
;
}
catch
(Exception exc)
{
MessageBox.Show(exc.Message);
}
}
///
<summary>
///
在当前图层上进行要素的选择，如果需要对所有FeatureLayer进行选择的话，可以使用IMap.SelectByShape()
///
</summary>
///
<param name="geometry"></param>
public
void
SelectFeatures(IGeometry geometry)
{
if
(geometry
==
null
)
return
;
ISpatialFilter spatialFilter
=
new
SpatialFilterClass();
spatialFilter.Geometry
=
geometry;
spatialFilter.SpatialRel
=
esriSpatialRelEnum.esriSpatialRelIntersects;
IFeatureCursor featureCursor
=
currentLayer.Search(spatialFilter,
false
);
selectFeatures
=
new
List
<
IFeature
>
();
IFeature feature
=
featureCursor.NextFeature();
map.ClearSelection();
while
(feature
!=
null
)
{
map.SelectFeature(currentLayer
as
ILayer, feature);
selectFeatures.Add(feature);
feature
=
featureCursor.NextFeature();
}
//
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureCursor);
((IActiveView)map).PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,
null
,
null
);
}
///
<summary>
///
删除选择的要素
///
</summary>
public
void
DeleteSelectFeatures()
{
if
(selectFeatures
==
null
||
!
isEditing)
return
;
//
先清除选择集
ClearSelection();
//
删除要素
workspaceEdit.StartEditOperation();
foreach
(IFeature feature
in
selectFeatures)
{
feature.Delete();
}
workspaceEdit.StopEditOperation();
hasEditing
=
true
;
selectFeatures
=
null
;
}
///
<summary>
///
清除地图上显示的选择要素集
///
</summary>
public
void
ClearSelection()
{
((IActiveView)map).PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,
null
,
null
);
map.ClearSelection();
((IActiveView)map).PartialRefresh(esriViewDrawPhase.esriViewGeoSelection,
null
,
null
);
}
#endregion
#region
IEditStack 成员
public
bool
IsEditing()
{
return
isEditing;
}
public
bool
HasEdited()
{
return
hasEditing;
}
public
void
StartEditing()
{
IFeatureClass featureClass
=
currentLayer.FeatureClass;
IWorkspace workspace
=
(featureClass
as
IDataset).Workspace;
workspaceEdit
=
workspace
as
IWorkspaceEdit;
if
(workspaceEdit
==
null
)
return
;
if
(
!
workspaceEdit.IsBeingEdited())
{
workspaceEdit.StartEditing(
true
);
workspaceEdit.EnableUndoRedo();
isEditing
=
true
;
}
}
public
void
SaveEditing(
bool
save)
{
if
(
!
save)
{
workspaceEdit.StopEditing(
false
);
}
else
if
(save
&&
hasEditing
&&
isEditing)
{
workspaceEdit.StopEditing(
true
);
}
hasEditing
=
false
;
}
public
void
StopEditing(
bool
save)
{
this
.SaveEditing(save);
isEditing
=
false
;
}
public
bool
HasRedo()
{
bool
hasRedo
=
false
;
if
(isEditing
&&
hasEditing)
{
workspaceEdit.HasRedos(
ref
hasRedo);
}
return
hasRedo;
}
public
bool
HasUndo()
{
bool
hasUndo
=
false
;
if
(isEditing
&&
hasEditing)
{
workspaceEdit.HasUndos(
ref
hasUndo);
}
return
hasUndo;
}
public
void
RodoEditing()
{
if
(
!
isEditing
||
!
hasEditing)
return
;
workspaceEdit.RedoEditOperation();
}
public
void
UndoEditing()
{
if
(
!
isEditing
||
!
hasEditing)
return
;
//
先清除选择集
ClearSelection();
workspaceEdit.UndoEditOperation();
}
#endregion
}
代码
class
Edit2 : Edit
{
private
IFeatureDataset featureDataset;
//
当前编辑featuredataset
//
对featureDataset操作构造函数
public
Edit2(IFeatureDataset featureDataset, IMap map)
{
this
.featureDataset
=
featureDataset;
this
.map
=
map;
}
//
对单个图层操作构造函数
public
Edit2(IFeatureLayer featLyr, IMap map)
:
base
(featLyr, map)
{
}
public
Edit2()
{
}
public
new
void
StartEditing()
{
if
(featureDataset
!=
null
)
{
IFeatureWorkspace featureWorksapce
=
featureDataset.Workspace
as
IFeatureWorkspace;
workspaceEdit
=
featureWorksapce
as
IWorkspaceEdit;
if
(
!
workspaceEdit.IsBeingEdited())
{
workspaceEdit.StartEditing(
true
);
workspaceEdit.EnableUndoRedo();
isEditing
=
true
;
}
}
else
//
单一图层的话调用基类开始编辑
{
base
.StartEditing();
}
}
//
保存、停止、撤销、重做等编辑可直接使用基类函数
//
对featuredataset中单个featureclass进行添加和选择要素
public
void
AddFeature(IFeatureLayer featurelayer, IGeometry geometry)
{
currentLayer
=
featurelayer;
base
.AddFeature(geometry);
}
public
void
SelectFeatures(IFeatureLayer featureLayer, IGeometry geometry)
{
currentLayer
=
featureLayer;
base
.SelectFeatures(geometry);
}
}