HelpInfo IHelpProvider.ProvideHoverHelp(Point localPos, ref bool captured)
{
// A dropdown is opened. Provide dropdown help.
IPopupControlHost dropdownEdit = this.FocusEditor as IPopupControlHost;
if (dropdownEdit != null && dropdownEdit.IsDropDownOpened)
{
EnumPropertyEditor enumEdit = dropdownEdit as EnumPropertyEditor;
FlaggedEnumPropertyEditor enumFlagEdit = dropdownEdit as FlaggedEnumPropertyEditor;
ObjectSelectorPropertyEditor objectSelectorEdit = dropdownEdit as ObjectSelectorPropertyEditor;
// Its able to provide help. Redirect.
if (dropdownEdit is IHelpProvider)
{
captured = true;
Point dropdownEditorPos = this.GetEditorLocation(dropdownEdit as PropertyEditor, true);
return((dropdownEdit as IHelpProvider).ProvideHoverHelp(new Point(localPos.X - dropdownEditorPos.X, localPos.Y - dropdownEditorPos.Y), ref captured));
}
// Special case: Its a known basic dropdown.
else if (enumEdit != null)
{
captured = true;
if (enumEdit.DropDownHoveredName != null)
{
return(HelpInfo.FromMember(enumEdit.EditedType.GetField(enumEdit.DropDownHoveredName, ReflectionHelper.BindAll)));
}
else
{
FieldInfo field = enumEdit.EditedType.GetField(enumEdit.DisplayedValue.ToString(), ReflectionHelper.BindAll);
if (field != null)
{
return(HelpInfo.FromMember(field));
}
}
}
else if (enumFlagEdit != null)
{
captured = true;
if (enumFlagEdit.DropDownHoveredItem != null)
{
return(HelpInfo.FromMember(enumFlagEdit.EditedType.GetField(enumFlagEdit.DropDownHoveredItem.Caption, ReflectionHelper.BindAll)));
}
else
{
FieldInfo field = enumFlagEdit.EditedType.GetField(enumFlagEdit.DisplayedValue.ToString(), ReflectionHelper.BindAll);
if (field != null)
{
return(HelpInfo.FromMember(field));
}
}
}
else if (objectSelectorEdit != null)
{
captured = true;
if (objectSelectorEdit.DropDownHoveredObject != null)
{
return(HelpInfo.FromObject(objectSelectorEdit.DropDownHoveredObject.Value));
}
else
{
return(HelpInfo.FromObject(objectSelectorEdit.DisplayedValue));
}
}
// No help available.
return(null);
}
captured = false;
// Pick an editor and see if it has access to an actual IHelpProvider
PropertyEditor pickedEditor = this.PickEditorAt(localPos.X, localPos.Y, true);
PropertyEditor helpEditor = pickedEditor;
while (helpEditor != null)
{
Point helpEditorPos = this.GetEditorLocation(helpEditor, true);
if (helpEditor is IHelpProvider)
{
IHelpProvider localProvider = helpEditor as IHelpProvider;
HelpInfo localHelp = localProvider.ProvideHoverHelp(new Point(localPos.X - helpEditorPos.X, localPos.Y - helpEditorPos.Y), ref captured);
if (localHelp != null)
{
return(localHelp);
}
}
helpEditor = helpEditor.ParentEditor;
}
// If not, default to member or type information
if (pickedEditor != null)
{
if (!string.IsNullOrEmpty(pickedEditor.PropertyDesc))
{
return(HelpInfo.FromText(pickedEditor.PropertyName, pickedEditor.PropertyDesc));
}
else if (pickedEditor.EditedMember != null)
{
return(HelpInfo.FromMember(pickedEditor.EditedMember));
}
else if (pickedEditor.EditedType != null)
{
return(HelpInfo.FromMember(pickedEditor.EditedType));
}
}
return(null);
}
public PropertyEditor CreateEditor(Type baseType, ProviderContext context)
{
PropertyEditor e = null;
// Basic numeric data types
if (baseType == typeof(sbyte) || baseType == typeof(byte) ||
baseType == typeof(short) || baseType == typeof(ushort) ||
baseType == typeof(int) || baseType == typeof(uint) ||
baseType == typeof(long) || baseType == typeof(ulong) ||
baseType == typeof(float) || baseType == typeof(double) || baseType == typeof(decimal))
e = new NumericPropertyEditor();
// Basic data type: Boolean
else if (baseType == typeof(bool))
e = new BoolPropertyEditor();
// Basic data type: Flagged Enum
else if (baseType.IsEnum && baseType.GetCustomAttributes(typeof(FlagsAttribute), true).Any())
e = new FlaggedEnumPropertyEditor();
// Basic data type: Other Enums
else if (baseType.IsEnum)
e = new EnumPropertyEditor();
// Basic data type: String
else if (baseType == typeof(string))
e = new StringPropertyEditor();
// IList
else if (typeof(System.Collections.IList).IsAssignableFrom(baseType))
e = new IListPropertyEditor();
// IList
else if (typeof(System.Collections.IDictionary).IsAssignableFrom(baseType))
e = new IDictionaryPropertyEditor();
// Unknown data type
else
{
// Ask around if any sub-editor can handle it and choose the most specialized
var availSubProviders =
from p in this.subProviders
where p.IsResponsibleFor(baseType, context) != EditorPriority_None
orderby p.IsResponsibleFor(baseType, context) descending
select p;
IPropertyEditorProvider subProvider = availSubProviders.FirstOrDefault();
if (subProvider != null)
{
e = subProvider.CreateEditor(baseType, context);
e.EditedType = baseType;
return e;
}
// If not, default to reflection-driven MemberwisePropertyEditor
e = new MemberwisePropertyEditor();
}
e.EditedType = baseType;
return e;
}
public PropertyEditor CreateEditor(Type baseType, ProviderContext context)
{
PropertyEditor e = null;
// Basic numeric data types
if (baseType == typeof(sbyte) || baseType == typeof(byte) ||
baseType == typeof(short) || baseType == typeof(ushort) ||
baseType == typeof(int) || baseType == typeof(uint) ||
baseType == typeof(long) || baseType == typeof(ulong) ||
baseType == typeof(float) || baseType == typeof(double) || baseType == typeof(decimal))
{
e = new NumericPropertyEditor();
}
// Basic data type: Boolean
else if (baseType == typeof(bool))
{
e = new BoolPropertyEditor();
}
// Basic data type: Flagged Enum
else if (baseType.IsEnum && baseType.GetCustomAttributes(typeof(FlagsAttribute), true).Any())
{
e = new FlaggedEnumPropertyEditor();
}
// Basic data type: Other Enums
else if (baseType.IsEnum)
{
e = new EnumPropertyEditor();
}
// Basic data type: String
else if (baseType == typeof(string))
{
e = new StringPropertyEditor();
}
// IList
else if (typeof(System.Collections.IList).IsAssignableFrom(baseType))
{
e = new IListPropertyEditor();
}
// IList
else if (typeof(System.Collections.IDictionary).IsAssignableFrom(baseType))
{
e = new IDictionaryPropertyEditor();
}
// Unknown data type
else
{
// Ask around if any sub-editor can handle it and choose the most specialized
var availSubProviders =
from p in this.subProviders
where p.IsResponsibleFor(baseType, context) != EditorPriority_None
orderby p.IsResponsibleFor(baseType, context) descending
select p;
IPropertyEditorProvider subProvider = availSubProviders.FirstOrDefault();
if (subProvider != null)
{
e = subProvider.CreateEditor(baseType, context);
e.EditedType = baseType;
return(e);
}
// If not, default to reflection-driven MemberwisePropertyEditor
e = new MemberwisePropertyEditor();
}
e.EditedType = baseType;
return(e);
}
