public void SetName(IComponent comp, string newName)
{
// trim any spaces off of the name
newName = newName.Trim();
SampleDesignSite cs = (SampleDesignSite)comp.Site;
if (newName.Equals(cs.Name))
{
return;
}
// If the rename is only a case change
if (string.Compare(newName, cs.Name, true) != 0)
{
Host.CheckName(newName);
}
// Find the name property provided by us.
//
((IComponentChangeService)Host).OnComponentChanging(comp, TypeDescriptor.GetProperties(comp, designerNameAttribute)["Name"]);
Host.Sites.Remove(cs.Name);
Host.Sites[newName] = cs;
string oldName = cs.Name;
cs.SetName(newName);
Host.OnComponentRename(new ComponentRenameEventArgs(comp, oldName, newName));
((IComponentChangeService)Host).OnComponentChanged(comp, TypeDescriptor.GetProperties(comp, designerNameAttribute)["Name"], oldName, newName);
}
public IComponent CreateComponent(System.Type componentClass, string name)
{
object obj = null;
IComponent comp = null;
this.newComponentSite = new SampleDesignSite(this, name);
try
{
try
{
object[] args = new object[] { this };
System.Type[] argTypes = new System.Type[] { typeof(IContainer) };
obj = this.CreateObject(componentClass, args, argTypes, false);
}
catch (Exception)
{
}
if (null == obj)
{
obj = this.CreateObject(componentClass, null, null, false);
}
comp = obj as Component;
if (comp == null)
{
Exception ex = new Exception("The class is not a component " + componentClass.FullName);
throw ex;
}
SampleDesignSite site = comp.Site as SampleDesignSite;
if (site == null)
{
((IContainer)this).Add(comp);
}
Debug.Assert(this.newComponentSite == null, "add didn't use newComponentSite");
}
catch (Exception)
{
if (comp != null)
{
try
{
this.DestroyComponent(comp);
}
catch (Exception)
{
}
}
throw;
}
return(comp);
}
public void SetName(IComponent comp, string newName)
{
newName = newName.Trim();
SampleDesignSite cs = (SampleDesignSite)comp.Site;
if (!newName.Equals(cs.Name))
{
if (string.Compare(newName, cs.Name, true) != 0)
{
this.Host.CheckName(newName);
}
((IComponentChangeService)this.Host).OnComponentChanging(comp, TypeDescriptor.GetProperties(comp, designerNameAttribute)["Name"]);
this.Host.Sites.Remove(cs.Name);
this.Host.Sites[newName] = cs;
string oldName = cs.Name;
cs.SetName(newName);
this.Host.OnComponentRename(new ComponentRenameEventArgs(comp, oldName, newName));
((IComponentChangeService)this.Host).OnComponentChanged(comp, TypeDescriptor.GetProperties(comp, designerNameAttribute)["Name"], oldName, newName);
}
}
private void Remove(IComponent component)
{
if (component != null)
{
ISite site = component.Site;
if ((this.sites.ContainsValue(site) && ((site != null) && (site.Container == this))) && (site is SampleDesignSite))
{
ComponentEventArgs ce = new ComponentEventArgs(component);
this.OnComponentRemoving(ce);
SampleDesignSite csite = (SampleDesignSite)site;
if ((csite.Component != this.rootComponent) && (component is IExtenderProvider))
{
((IExtenderProviderService)this).RemoveExtenderProvider((IExtenderProvider)component);
}
IDesigner designer = (IDesigner)this.designerTable[component];
if (designer != null)
{
designer.Dispose();
}
this.designerTable.Remove(component);
this.sites.Remove(csite.Name);
if (this.components != null)
{
this.components.Remove(site);
}
try
{
this.OnComponentRemoved(ce);
}
catch (Exception)
{
}
component.Site = null;
}
}
}
public IComponent CreateComponent(Type componentClass, string name) {
object obj = null;
IComponent comp = null;
// Create the site we are going to use here so that our Container.Add implementation
// can pick it up - need to do this here because name is not passed to Container.Add
// by Foo(IContainer) constructor below.
newComponentSite = new SampleDesignSite(this,name);
// Create the Component - there are 2 possible ways to do this:
// Foo(IComponent) or Foo().
try {
// See if we can create the component using an IContainer constructor...
try {
object[] args = new object[] {this};
Type[] argTypes = new Type[] {typeof(IContainer)};
obj = CreateObject(componentClass, args, argTypes, false);
}
catch (Exception) {
}
// If it failed, try to create it with a default constructor
if (null == obj) {
obj = CreateObject(componentClass, null, null, false);
}
//Make sure we have a component
comp = obj as Component ;
if (comp == null) {
Exception ex = new Exception("The class is not a component " + componentClass.FullName);
throw ex;
}
// If we didn't have a constructor that took a Container or the site is not
// a SampleDesignSite the we will do the Container.Add() work
SampleDesignSite site = comp.Site as SampleDesignSite;
if (site == null) {
((IContainer)this).Add(comp);
}
// At this point, our add call should have used the new site we gave it (if there was
// one), and nulled out the holder pointer.
Debug.Assert(newComponentSite == null, "add didn't use newComponentSite");
}
catch (Exception) {
if (comp != null) {
try {
DestroyComponent(comp);
}
catch (Exception) {
}
}
throw;
}
if (comp != null)
{
AddDesignedComponent(comp);
}
return comp;
}
void IContainer.Add(IComponent component, string name) {
if (null == component) return;
if (rootComponent != null) {
// Compare to the class the root component represents, not it's actual class!
if (String.Compare(component.GetType().FullName, rootComponentClassName, true) == 0) {
Exception ex = new Exception("Can't add a component to itself " + component.GetType().FullName);
throw ex;
}
}
ISite site = component.Site;
// If the component is already added to us, all we have to do is check
// the name. If the name is different we rename it, otherwise we do
// nothing.
if (site != null && site.Container == this) {
if (name != null && !name.Equals(site.Name)) {
CheckName(name);
site.Name = name;
}
return;
}
// Check to see if someone has already configured a site for us. If so,
// use it. Otherwise, fabricate a new site.
// newComponentSite is created by CreateComponent.
SampleDesignSite newSite = newComponentSite;
newComponentSite = null;
if (newSite != null && name == null) {
name = newSite.Name;
}
// Make sure the name is valid.
if (name != null) {
CheckName(name);
}
ComponentEventArgs ce = new ComponentEventArgs(component);
OnComponentAdding(ce);
// Remove this component from its current site
if (site != null) site.Container.Remove(component);
if (newSite == null) {
newSite = new SampleDesignSite(this, name);
}
// And set the relationship between this site and it's component. If the
// site has no name at this point, it will fabricate one.
newSite.SetComponent(component);
// If we were given a site, the name we're given should always be null,
// or at least be the same name as that stored in the new site.
Debug.Assert(name == null || name.Equals(newSite.Name), "Name should match the one in newComponentSite");
if (component is IExtenderProvider &&
!TypeDescriptor.GetAttributes(component).Contains(InheritanceAttribute.InheritedReadOnly)) {
((IExtenderProviderService)this).AddExtenderProvider((IExtenderProvider)component);
}
// And establish the component/site relationship
sites[newSite.Name] = newSite;
component.Site = newSite;
if (components != null) {
components.Add(newSite);
}
try {
CreateComponentDesigner(component);
// The component has been added. Note that it is tempting to move this above the
// designer because the designer will never need to know that its own component just
// got added, but this would be bad because the designer is needed to extract
// shadowed properties from the component.
//
OnComponentAdded(ce);
}
catch (Exception) {
// If we're loading, then don't remove the component. We are about to
// fail the load anyway here, and we don't want to be firing remove events during
// a load.
if (!loadingDesigner) {
((IContainer)this).Remove(component);
}
throw;
}
}
// This is called during Dispose and Reload methods to unload the current designer.
private void UnloadDocument() {
if (helpService != null && rootDesigner != null) {
helpService.RemoveContextAttribute("Keyword", "Designer_" + rootDesigner.GetType().FullName);
}
// Note: Because this can be called during Dispose, we are very anal here
// about checking for null references.
// If we can get a selection service, clear the selection...
// we don't want the property browser browsing disposed components...
// or components who's designer has been destroyed.
IServiceProvider sp = (IServiceProvider)this;
ISelectionService selectionService = (ISelectionService)sp.GetService(typeof(ISelectionService));
Debug.Assert(selectionService != null, "ISelectionService not found");
if (selectionService != null) {
selectionService.SetSelectedComponents(null);
}
// Stash off the base designer and component. We are
// going to be destroying these and we don't want them
// to be accidently referenced after they're dead.
//
IDesigner rootDesignerHolder = rootDesigner;
IComponent rootComponentHolder = rootComponent;
rootDesigner = null;
rootComponent = null;
rootComponentClassName = null;
SampleDesignSite[] siteArray = new SampleDesignSite[sites.Values.Count];
sites.Values.CopyTo(siteArray, 0);
// Destroy all designers. We save the base designer for last.
//
IDesigner[] designers = new IDesigner[designerTable.Values.Count];
designerTable.Values.CopyTo(designers, 0);
designerTable.Clear();
// Loading, unloading, it's all the same. It indicates that you
// shouldn't dirty or otherwise mess with the buffer. We also
// create a transaction here to limit the effects of making
// so many changes.
loadingDesigner = true;
DesignerTransaction trans = CreateTransaction();
try {
for (int i = 0; i < designers.Length; i++) {
if (designers[i] != rootDesignerHolder) {
try {
designers[i].Dispose();
}
catch {
Debug.Fail("Designer " + designers[i].GetType().Name + " threw an exception during Dispose.");
}
}
}
// Now destroy all components.
for (int i = 0; i < siteArray.Length; i++) {
SampleDesignSite site = siteArray[i];
IComponent comp = site.Component;
if (comp != null && comp != rootComponentHolder) {
try {
comp.Dispose();
}
catch {
Debug.Fail("Component " + site.Name + " threw during dispose. Bad component!!");
}
if (comp.Site != null) {
Debug.Fail("Component " + site.Name + " did not remove itself from its container");
Remove(comp);
}
}
}
// Finally, do the base designer and component.
//
if (rootDesignerHolder != null) {
try {
rootDesignerHolder.Dispose();
}
catch {
Debug.Fail("Designer " + rootDesignerHolder.GetType().Name + " threw an exception during Dispose.");
}
}
if (rootComponentHolder != null) {
try {
rootComponentHolder.Dispose();
}
catch {
Debug.Fail("Component " + rootComponentHolder.GetType().Name + " threw during dispose. Bad component!!");
}
if (rootComponentHolder.Site != null) {
Debug.Fail("Component " + rootComponentHolder.Site.Name + " did not remove itself from its container");
Remove(rootComponentHolder);
}
}
sites.Clear();
if (components != null) {
components.Clear();
}
}
finally {
loadingDesigner = false;
trans.Commit();
}
// And clear the document window
//
if (documentWindow != null) {
documentWindow.SetDesigner(null);
}
}
private void UnloadDocument()
{
if ((this.helpService != null) && (this.rootDesigner != null))
{
this.helpService.RemoveContextAttribute("Keyword", "Designer_" + this.rootDesigner.GetType().FullName);
}
IServiceProvider sp = this;
ISelectionService selectionService = (ISelectionService)sp.GetService(typeof(ISelectionService));
Debug.Assert(selectionService != null, "ISelectionService not found");
if (selectionService != null)
{
selectionService.SetSelectedComponents(null);
}
IDesigner rootDesignerHolder = this.rootDesigner;
IComponent rootComponentHolder = this.rootComponent;
this.rootDesigner = null;
this.rootComponent = null;
this.rootComponentClassName = null;
SampleDesignSite[] siteArray = new SampleDesignSite[this.sites.Values.Count];
this.sites.Values.CopyTo(siteArray, 0);
IDesigner[] designers = new IDesigner[this.designerTable.Values.Count];
this.designerTable.Values.CopyTo(designers, 0);
this.designerTable.Clear();
this.loadingDesigner = true;
DesignerTransaction trans = this.CreateTransaction();
try
{
int i;
for (i = 0; i < designers.Length; i++)
{
if (designers[i] != rootDesignerHolder)
{
try
{
designers[i].Dispose();
}
catch
{
Debug.Fail("Designer " + designers[i].GetType().Name + " threw an exception during Dispose.");
}
}
}
for (i = 0; i < siteArray.Length; i++)
{
SampleDesignSite site = siteArray[i];
IComponent comp = site.Component;
if ((comp != null) && (comp != rootComponentHolder))
{
try
{
comp.Dispose();
}
catch
{
Debug.Fail("Component " + site.Name + " threw during dispose. Bad component!!");
}
if (comp.Site != null)
{
Debug.Fail("Component " + site.Name + " did not remove itself from its container");
this.Remove(comp);
}
}
}
if (rootDesignerHolder != null)
{
try
{
rootDesignerHolder.Dispose();
}
catch
{
Debug.Fail("Designer " + rootDesignerHolder.GetType().Name + " threw an exception during Dispose.");
}
}
if (rootComponentHolder != null)
{
try
{
rootComponentHolder.Dispose();
}
catch
{
Debug.Fail("Component " + rootComponentHolder.GetType().Name + " threw during dispose. Bad component!!");
}
if (rootComponentHolder.Site != null)
{
Debug.Fail("Component " + rootComponentHolder.Site.Name + " did not remove itself from its container");
this.Remove(rootComponentHolder);
}
}
this.sites.Clear();
if (this.components != null)
{
this.components.Clear();
}
}
finally
{
this.loadingDesigner = false;
trans.Commit();
}
if (this.documentWindow != null)
{
this.documentWindow.SetDesigner(null);
}
}
void IContainer.Add(IComponent component, string name)
{
if (null != component)
{
if ((this.rootComponent != null) && (string.Compare(component.GetType().FullName, this.rootComponentClassName, true) == 0))
{
Exception ex = new Exception("Can't add a component to itself " + component.GetType().FullName);
throw ex;
}
ISite site = component.Site;
if ((site != null) && (site.Container == this))
{
if ((name != null) && !name.Equals(site.Name))
{
try
{
this.CheckName(name);
}
catch (Exception)
{
name = this.GetNewComponentName(site.GetType());
site.Name = name;
}
site.Name = name;
}
}
else
{
SampleDesignSite newSite = this.newComponentSite;
this.newComponentSite = null;
if ((newSite != null) && (name == null))
{
name = newSite.Name;
}
if ((name != null) && !this.CheckName(name))
{
}
ComponentEventArgs ce = new ComponentEventArgs(component);
this.OnComponentAdding(ce);
if (site != null)
{
site.Container.Remove(component);
}
if (newSite == null)
{
newSite = new SampleDesignSite(this, name);
}
if (this.components[name] != null)
{
name = this.GetNewComponentName(component.GetType());
newSite.Name = name;
}
newSite.SetComponent(component);
Debug.Assert((name == null) || name.Equals(newSite.Name), "Name should match the one in newComponentSite");
if (!(!(component is IExtenderProvider) || TypeDescriptor.GetAttributes(component).Contains(InheritanceAttribute.InheritedReadOnly)))
{
((IExtenderProviderService)this).AddExtenderProvider((IExtenderProvider)component);
}
this.sites[newSite.Name] = newSite;
component.Site = newSite;
if (this.components != null)
{
this.components.Add(newSite);
}
try
{
this.CreateComponentDesigner(component);
this.OnComponentAdded(ce);
}
catch (Exception)
{
if (!this.loadingDesigner)
{
((IContainer)this).Remove(component);
}
throw;
}
}
}
}
void IContainer.Add(IComponent component, string name)
{
if (null != component)
{
if ((this.rootComponent != null) && (string.Compare(component.GetType().FullName, this.rootComponentClassName, true) == 0))
{
Exception ex = new Exception("Can't add a component to itself " + component.GetType().FullName);
throw ex;
}
ISite site = component.Site;
if ((site != null) && (site.Container == this))
{
if ((name != null) && !name.Equals(site.Name))
{
try
{
this.CheckName(name);
}
catch (Exception)
{
name = this.GetNewComponentName(site.GetType());
site.Name = name;
}
site.Name = name;
}
}
else
{
SampleDesignSite newSite = this.newComponentSite;
this.newComponentSite = null;
if ((newSite != null) && (name == null))
{
name = newSite.Name;
}
if ((name != null) && !this.CheckName(name))
{
}
ComponentEventArgs ce = new ComponentEventArgs(component);
this.OnComponentAdding(ce);
if (site != null)
{
site.Container.Remove(component);
}
if (newSite == null)
{
newSite = new SampleDesignSite(this, name);
}
if (this.components[name] != null)
{
name = this.GetNewComponentName(component.GetType());
newSite.Name = name;
}
newSite.SetComponent(component);
Debug.Assert((name == null) || name.Equals(newSite.Name), "Name should match the one in newComponentSite");
if (!(!(component is IExtenderProvider) || TypeDescriptor.GetAttributes(component).Contains(InheritanceAttribute.InheritedReadOnly)))
{
((IExtenderProviderService) this).AddExtenderProvider((IExtenderProvider) component);
}
this.sites[newSite.Name] = newSite;
component.Site = newSite;
if (this.components != null)
{
this.components.Add(newSite);
}
try
{
this.CreateComponentDesigner(component);
this.OnComponentAdded(ce);
}
catch (Exception)
{
if (!this.loadingDesigner)
{
((IContainer) this).Remove(component);
}
throw;
}
}
}
}
public IComponent CreateComponent(System.Type componentClass, string name)
{
object obj = null;
IComponent comp = null;
this.newComponentSite = new SampleDesignSite(this, name);
try
{
try
{
object[] args = new object[] { this };
System.Type[] argTypes = new System.Type[] { typeof(IContainer) };
obj = this.CreateObject(componentClass, args, argTypes, false);
}
catch (Exception)
{
}
if (null == obj)
{
obj = this.CreateObject(componentClass, null, null, false);
}
comp = obj as Component;
if (comp == null)
{
Exception ex = new Exception("The class is not a component " + componentClass.FullName);
throw ex;
}
SampleDesignSite site = comp.Site as SampleDesignSite;
if (site == null)
{
((IContainer) this).Add(comp);
}
Debug.Assert(this.newComponentSite == null, "add didn't use newComponentSite");
}
catch (Exception)
{
if (comp != null)
{
try
{
this.DestroyComponent(comp);
}
catch (Exception)
{
}
}
throw;
}
return comp;
}
private void UnloadDocument()
{
if ((this.helpService != null) && (this.rootDesigner != null))
{
this.helpService.RemoveContextAttribute("Keyword", "Designer_" + this.rootDesigner.GetType().FullName);
}
IServiceProvider sp = this;
ISelectionService selectionService = (ISelectionService) sp.GetService(typeof(ISelectionService));
Debug.Assert(selectionService != null, "ISelectionService not found");
if (selectionService != null)
{
selectionService.SetSelectedComponents(null);
}
IDesigner rootDesignerHolder = this.rootDesigner;
IComponent rootComponentHolder = this.rootComponent;
this.rootDesigner = null;
this.rootComponent = null;
this.rootComponentClassName = null;
SampleDesignSite[] siteArray = new SampleDesignSite[this.sites.Values.Count];
this.sites.Values.CopyTo(siteArray, 0);
IDesigner[] designers = new IDesigner[this.designerTable.Values.Count];
this.designerTable.Values.CopyTo(designers, 0);
this.designerTable.Clear();
this.loadingDesigner = true;
DesignerTransaction trans = this.CreateTransaction();
try
{
int i;
for (i = 0; i < designers.Length; i++)
{
if (designers[i] != rootDesignerHolder)
{
try
{
designers[i].Dispose();
}
catch
{
Debug.Fail("Designer " + designers[i].GetType().Name + " threw an exception during Dispose.");
}
}
}
for (i = 0; i < siteArray.Length; i++)
{
SampleDesignSite site = siteArray[i];
IComponent comp = site.Component;
if ((comp != null) && (comp != rootComponentHolder))
{
try
{
comp.Dispose();
}
catch
{
Debug.Fail("Component " + site.Name + " threw during dispose. Bad component!!");
}
if (comp.Site != null)
{
Debug.Fail("Component " + site.Name + " did not remove itself from its container");
this.Remove(comp);
}
}
}
if (rootDesignerHolder != null)
{
try
{
rootDesignerHolder.Dispose();
}
catch
{
Debug.Fail("Designer " + rootDesignerHolder.GetType().Name + " threw an exception during Dispose.");
}
}
if (rootComponentHolder != null)
{
try
{
rootComponentHolder.Dispose();
}
catch
{
Debug.Fail("Component " + rootComponentHolder.GetType().Name + " threw during dispose. Bad component!!");
}
if (rootComponentHolder.Site != null)
{
Debug.Fail("Component " + rootComponentHolder.Site.Name + " did not remove itself from its container");
this.Remove(rootComponentHolder);
}
}
this.sites.Clear();
if (this.components != null)
{
this.components.Clear();
}
}
finally
{
this.loadingDesigner = false;
trans.Commit();
}
if (this.documentWindow != null)
{
this.documentWindow.SetDesigner(null);
}
}
