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/*********************************************************************** Vczh Library++ 3.0 Developer: Zihan Chen(vczh) GacUI::Control System Interfaces: ***********************************************************************/
#ifndef VCZH_PRESENTATION_CONTROLS_GUITEXTLISTCONTROLS
#define VCZH_PRESENTATION_CONTROLS_GUITEXTLISTCONTROLS
#include "GuiListControls.h"
namespace
vl
{
namespace
presentation
{
namespace
controls
{
class
GuiVirtualTextList
;
class
GuiTextList
;
namespace
list
{
/*********************************************************************** DefaultTextListItemTemplate ***********************************************************************/
/// <summary>The required <see cref="GuiListControl::IItemProvider"/> view for <see cref="GuiVirtualTextList"/>.</summary>
class
ITextItemView
:
public
virtual
IDescriptable
,
public
Description
<
ITextItemView
> {
public
:
/// <summary>The identifier for this view.</summary>
static
const
wchar_t
*
const
Identifier
;
/// <summary>Get the check state of an item.</summary>
/// <returns>The check state of an item.</returns>
/// <param name="itemIndex">The index of an item.</param>
virtual
bool
GetChecked
(
vint
itemIndex
) =
0
;
/// <summary>Set the check state of an item without invoving any UI action.</summary>
/// <param name="itemIndex">The index of an item.</param>
/// <param name="value">The new check state.</param>
virtual
void
SetChecked
(
vint
itemIndex
,
bool
value
) =
0
; };
class
DefaultTextListItemTemplate
:
public
templates
::
GuiTextListItemTemplate
{
protected
:
using
BulletStyle
=
templates
::
GuiControlTemplate
;
GuiSelectableButton
*
bulletButton
=
nullptr
;
elements
::
GuiSolidLabelElement
*
textElement
=
nullptr
;
bool
supressEdit
=
false
;
virtual
TemplateProperty
<
BulletStyle
>
CreateBulletStyle
();
void
OnInitialize
()
override
;
void
OnFontChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
void
OnTextChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
void
OnTextColorChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
void
OnCheckedChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
void
OnBulletSelectedChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
public
:
DefaultTextListItemTemplate
();
~
DefaultTextListItemTemplate
(); };
class
DefaultCheckTextListItemTemplate
:
public
DefaultTextListItemTemplate
{
protected
:
TemplateProperty
<
BulletStyle
>
CreateBulletStyle
()
override
;
public
: };
class
DefaultRadioTextListItemTemplate
:
public
DefaultTextListItemTemplate
{
protected
:
TemplateProperty
<
BulletStyle
>
CreateBulletStyle
()
override
;
public
: };
/*********************************************************************** TextItemProvider ***********************************************************************/
class
TextItemProvider
;
/// <summary>Text item. This is the item data structure for [T:vl.presentation.controls.list.TextItemProvider].</summary>
class
TextItem
:
public
Object
,
public
Description
<
TextItem
> {
friend
class
TextItemProvider
;
protected
:
TextItemProvider
*
owner
;
WString
text
;
bool
checked
;
public
:
/// <summary>Create an empty text item.</summary>
TextItem
();
/// <summary>Create a text item with specified text and check state.</summary>
/// <param name="_text">The text.</param>
/// <param name="_checked">The check state.</param>
TextItem
(
const
WString
&
_text
,
bool
_checked
=
false
);
~
TextItem
();
bool
operator
=
=
(
const
TextItem
&
value
)
const
;
bool
operator
!
=
(
const
TextItem
&
value
)
const
;
/// <summary>Get the text of this item.</summary>
/// <returns>The text of this item.</returns>
const
WString
&
GetText
();
/// <summary>Set the text of this item.</summary>
/// <param name="value">The text of this item.</param>
void
SetText
(
const
WString
&
value
);
/// <summary>Get the check state of this item.</summary>
/// <returns>The check state of this item.</returns>
bool
GetChecked
();
/// <summary>Set the check state of this item.</summary>
/// <param name="value">The check state of this item.</param>
void
SetChecked
(
bool
value
); };
/// <summary>Item provider for <see cref="GuiVirtualTextList"/> or <see cref="GuiSelectableListControl"/>.</summary>
class
TextItemProvider
:
public
ListProvider
<
Ptr
<
TextItem
>> ,
protected
ITextItemView
,
public
Description
<
TextItemProvider
> {
friend
class
TextItem
;
friend
class
vl
::
presentation
::
controls
::
GuiTextList
;
protected
:
GuiTextList
*
listControl
;
void
AfterInsert
(
vint
item
,
const
Ptr
<
TextItem
>&
value
)
override
;
void
BeforeRemove
(
vint
item
,
const
Ptr
<
TextItem
>&
value
)
override
;
WString
GetTextValue
(
vint
itemIndex
)
override
;
description
::
Value
GetBindingValue
(
vint
itemIndex
)
override
;
bool
GetChecked
(
vint
itemIndex
)
override
;
void
SetChecked
(
vint
itemIndex
,
bool
value
)
override
;
public
:
TextItemProvider
();
~
TextItemProvider
();
IDescriptable
*
RequestView
(
const
WString
&
identifier
)
override
; }; }
/*********************************************************************** GuiVirtualTextList ***********************************************************************/
enum
class
TextListView
{
Text
,
Check
,
Radio
,
Unknown
, };
/// <summary>Text list control in virtual mode.</summary>
class
GuiVirtualTextList
:
public
GuiSelectableListControl
,
public
Description
<
GuiVirtualTextList
> {
protected
:
TextListView
view
=
TextListView
::
Unknown
;
void
OnStyleInstalled
(
vint
itemIndex
,
ItemStyle
*
style
)
override
;
void
OnItemTemplateChanged
(
compositions
::
GuiGraphicsComposition
*
sender
,
compositions
::
GuiEventArgs
&
arguments
);
public
:
/// <summary>Create a Text list control in virtual mode.</summary>
/// <param name="themeName">The theme name for retriving a default control template.</param>
/// <param name="_itemProvider">The item provider for this control.</param>
GuiVirtualTextList
(
theme
::
ThemeName
themeName
,
GuiListControl
::
IItemProvider
*
_itemProvider
);
~
GuiVirtualTextList
();
/// <summary>Item checked changed event.</summary>
compositions
::
GuiItemNotifyEvent
ItemChecked
;
/// <summary>Get the current view.</summary>
/// <returns>The current view. After [M:vl.presentation.controls.GuiListControl.SetItemTemplate] is called, the current view is reset to Unknown.</returns>
TextListView
GetView
();
/// <summary>Set the current view.</summary>
/// <param name="_view">The current view.</param>
void
SetView
(
TextListView
_view
); };
/*********************************************************************** GuiTextList ***********************************************************************/
/// <summary>Text list control.</summary>
class
GuiTextList
:
public
GuiVirtualTextList
,
public
Description
<
GuiTextList
> {
protected
:
list
::
TextItemProvider
*
items
;
public
:
/// <summary>Create a Text list control.</summary>
/// <param name="themeName">The theme name for retriving a default control template.</param>
GuiTextList
(
theme
::
ThemeName
themeName
);
~
GuiTextList
();
/// <summary>Get all text items.</summary>
/// <returns>All text items.</returns>
list
::
TextItemProvider
&
GetItems
();
/// <summary>Get the selected item.</summary>
/// <returns>Returns the selected item. If there are multiple selected items, or there is no selected item, null will be returned.</returns>
Ptr
<
list
::
TextItem
>
GetSelectedItem
(); }; } } }
#endif