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Ars::XScrollBar Class Reference

#include <xscrollbar.h>

Inheritance diagram for Ars::XScrollBar:

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Collaboration diagram for Ars::XScrollBar:

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Public Types

enum  EScrollBarType { VERTICAL, HORIZONTAL }
 The types of scrollbars possible. More...


Public Member Functions

 XScrollBar (void)
virtual ~XScrollBar (void)
 Standard destructor.

virtual void Init (icstring &aStr)
virtual const bool SetupWindow (const Message &msg)
 Deregister the setup_window message.

void SetLimits (const int Min, const int Max)
 Set the limits of the scroll bar.

const int GetMinLimit (void)
 The minimum limit of the scroll bar.

const int GetMaxLimit (void)
 The maximum limit of the scroll bar.

void SetPosition (const int iPosition)
 Set the current thumb position.

const int GetPosition (void)
 The current progress value.

virtual void Draw (void)
 Draws the scroll bar.

virtual void SetWindowRect (const XRect &WindowRect)

Protected Member Functions

virtual const bool evMouseButtonDown (const MouseMessage &msg)
virtual const bool evMouseButtonUp (const MouseMessage &msg)
virtual const bool evMouseMove (const MouseMessage &msg)
virtual const bool evMouseLClick (const CtrlMessage &msg)

Private Attributes

EScrollBarType m_ScrollBarType
 The type of scroll bar.

int m_iMin
 The minimum value of the scroll bar.

int m_iMax
 The maximum value of the scroll bar.

int m_iPosition
 The current position of the scroll bar thumb.

XButtonImage * m_pBtnUpLeft
 A pointer to the Up or Left button.

XButtonImage * m_pBtnDownRight
XRect m_ThumbRect
 The thumb rect.

bool m_bDragging
 Indicates if the thumb is currently being dragged.

string sct
string key
string fname

Member Enumeration Documentation

enum Ars::XScrollBar::EScrollBarType
 

The types of scrollbars possible.

Enumeration values:
VERTICAL  A standard vertical scrollbar.
HORIZONTAL  A standard horizontal scrollbar.

Definition at line 9 of file xscrollbar.h. 

00010         {
00011                 VERTICAL,  
00012                 HORIZONTAL  
00013         };

Constructor & Destructor Documentation

Ars::XScrollBar::XScrollBar (  void   ) 
 

Constructs a scroll bar, initilizes the limits to 0, and 100 with the position at 0

Parameters:
WindowRect A CRect that defines the outer limits of the control
aStr the rest of the resource to initialize the object

Definition at line 6 of file xscrollbar.cpp. 

00007 : m_iMin( 0 ) , m_iMax( -1 ) , m_iPosition( 1 ) , m_bDragging( false )
00008 , m_pBtnUpLeft( 0 ) , m_pBtnDownRight( 0 )
00009 {
00010 }

Ars::XScrollBar::~XScrollBar (  void   )  [virtual]
 

Standard destructor.

Definition at line 13 of file xscrollbar.cpp.

References m_pBtnDownRight, and m_pBtnUpLeft. 

00014 {
00015         if( m_pBtnUpLeft )      delete m_pBtnUpLeft;    m_pBtnUpLeft = 0;
00016         if( m_pBtnDownRight )   delete m_pBtnDownRight; m_pBtnDownRight = 0;
00017 }

Member Function Documentation

void Ars::XScrollBar::Draw (  void   )  [virtual]
 

Draws the scroll bar.

Reimplemented from Ars::XBox.

Definition at line 157 of file xscrollbar.cpp.

References Ars::XBox::DrawRaised(), Ars::HPaint::DrawRect(), Ars::Thing::GetFgColor(), Ars::XRect::Grow(), Ars::XRect::HitTest(), m_ThumbRect, Ars::XRect::RELPOS_INSIDE, and Ars::XRect::TopLeft(). 

00158 {
00159         XBox::Draw();
00160 
00161         XRect SubRect( m_ThumbRect );
00162 
00163         if( HitTest( SubRect.TopLeft() ) == RELPOS_INSIDE )
00164         {
00165                 SubRect.Grow( -1 );
00166 
00167                 DrawRaised( SubRect , GetFgColor() );
00168 
00169                 SubRect.Grow( -1 );
00170                 DrawRect( SubRect , true , GetFgColor() , GetFgColor() );
00171         }
00172 }

const bool Ars::XScrollBar::evMouseButtonDown (  const MouseMessage &  msg  )  [protected, virtual]
 

Reimplemented from Ars::Window.

Definition at line 210 of file xscrollbar.cpp.

References Ars::MouseMessage::Button, Ars::XRect::HitTest(), m_bDragging, m_ThumbRect, Ars::MouseMessage::Point, Ars::XRect::RELPOS_INSIDE, and Ars::Thing::SetDirty(). 

00211 {
00212         bool ans = XBox::evMouseButtonDown( msg );
00213 
00214         if( m_ThumbRect.HitTest( msg.Point ) == RELPOS_INSIDE && msg.Button == MouseMessage::LEFT )
00215         {
00216                 m_bDragging = true;
00217                 ans = true;
00218                 SetDirty();
00219         }
00220 
00221         return ans;
00222 }

const bool Ars::XScrollBar::evMouseButtonUp (  const MouseMessage &  msg  )  [protected, virtual]
 

Reimplemented from Ars::Window.

Definition at line 224 of file xscrollbar.cpp.

References ArsSendMessage, Ars::MouseMessage::Button, Ars::Window::GetParent(), m_bDragging, m_iPosition, and Ars::Thing::SetDirty(). 

00225 {
00226         bool ans = XBox::evMouseButtonUp( msg );        //      we do not want to send out parent a click on the slider....
00227 
00228         if( m_bDragging && msg.Button == MouseMessage::LEFT )
00229         {
00230                 m_bDragging = false;
00231                 ArsSendMessage( CtrlMessage( Message::CTRL_VALUECHANGE , GetParent() , this, m_iPosition ) );
00232                 ans = true;
00233                 SetDirty();
00234         }
00235         return ans;
00236 }

const bool Ars::XScrollBar::evMouseLClick (  const CtrlMessage &  msg  )  [protected, virtual]
 

Reimplemented from Ars::MessageClient.

Definition at line 264 of file xscrollbar.cpp.

References ArsSendMessage, Ars::Message::Destination(), Ars::Window::GetParent(), m_iPosition, m_pBtnDownRight, m_pBtnUpLeft, Ars::Thing::SetDirty(), SetPosition(), and Ars::CtrlMessage::source. 

00265 {
00266         bool ans = XBox::evMouseLClick( msg );
00267         if( msg.Destination() == this )
00268         {
00269                 if( msg.source == m_pBtnUpLeft )
00270                 {
00271                         SetPosition( m_iPosition - 1 );
00272                         ans = true;
00273                 }
00274                 else if( msg.source == m_pBtnDownRight )
00275                 {
00276                         SetPosition( m_iPosition + 1 );
00277                         ans = true;
00278                 }
00279                 if( ans )
00280                         ArsSendMessage( CtrlMessage( Message::CTRL_VALUECHANGE, GetParent() , this, m_iPosition ) );
00281                 SetDirty();
00282         }
00283 
00284         return ans;
00285 }

const bool Ars::XScrollBar::evMouseMove (  const MouseMessage &  msg  )  [protected, virtual]
 

Reimplemented from Ars::MessageClient.

Definition at line 238 of file xscrollbar.cpp.

References ArsSendMessage, Ars::Window::GetClientRect(), Ars::Window::GetParent(), Ars::XRect::Height(), HORIZONTAL, m_bDragging, m_iMax, m_iMin, m_iPosition, m_ScrollBarType, Ars::MouseMessage::Point, Ars::Thing::SetDirty(), SetPosition(), VERTICAL, Ars::XRect::Width(), Ars::XPoint::x, and Ars::XPoint::y. 

00239 {
00240         bool ans = XBox::evMouseMove( msg );
00241         if( m_bDragging )
00242         {
00243                 int iOldPosition = m_iPosition;
00244                 switch (m_ScrollBarType)
00245                 {
00246                 case VERTICAL:
00247                         SetPosition( (msg.Point.y - GetClientRect().y) * (m_iMax - m_iMin) / GetClientRect().Height() + m_iMin );
00248                         break;
00249                 case HORIZONTAL:
00250                         SetPosition( (msg.Point.x - GetClientRect().x) * (m_iMax - m_iMin) / GetClientRect().Width() + m_iMin );
00251                         break;
00252                 default:
00253                         //      throw(ExceptionApp("CScrollBar::HandleMessage:  Unrecognized ScrollBar Type."));
00254                         break;
00255                 }
00256                 if (iOldPosition != m_iPosition)
00257                         ArsSendMessage( CtrlMessage( Message::CTRL_VALUECHANGING, GetParent() , this , m_iPosition ) );
00258                 SetDirty();
00259         }
00260 
00261         return ans;
00262 }

const int Ars::XScrollBar::GetMaxLimit (  void   )  [inline]
 

The maximum limit of the scroll bar.

Definition at line 55 of file xscrollbar.h.

References m_iMax. 

00055 { return m_iMax; }

const int Ars::XScrollBar::GetMinLimit (  void   )  [inline]
 

The minimum limit of the scroll bar.

Definition at line 52 of file xscrollbar.h.

References m_iMin. 

00052 { return m_iMin; }

const int Ars::XScrollBar::GetPosition (  void   )  [inline]
 

The current progress value.

Definition at line 61 of file xscrollbar.h.

References m_iPosition.

Referenced by Ars::XTextBox::Draw(), Ars::XListBox::Draw(), Ars::XListBox::evKeyDown(), Ars::XListBox::evMouseButtonDown(), and Ars::XListBox::evMouseButtonUp(). 

00061 { return m_iPosition; }

void Ars::XScrollBar::Init (  icstring &  aStr  )  [virtual]
 

Initialize the thing object via a string the CAR identifiers used are: cfg: "section" "key" "fname" NB if fname starts with @ the string is the key of associated with afilename in the global Cfg file max: max element to scrol (default = 100) (ULButton <s-expression> ): list of the up or left button (BRButton <s-expression> ): list of the bottom ot right button

Reimplemented from Ars::Window.

Definition at line 19 of file xscrollbar.cpp.

References Ars::XRect::Bottom(), Ars::XRect::BottomRight(), Ars::Window::clientRect, F_NONE, fname, Ars::Thing::GetBgColor(), Ars::Thing::GetFgColor(), Ars::HPaint::GetFont(), Ars::Window::GetWindowText(), Ars::XRect::Height(), HORIZONTAL, icstring, Ars::XButtonImage::Init(), key, m_iMax, m_pBtnDownRight, m_pBtnUpLeft, m_ScrollBarType, Ars::XRect::Right(), S_RAISED, sct, Ars::Thing::SetBgColor(), Ars::Thing::SetFgColor(), Ars::Thing::SetFlags(), Ars::HPaint::SetFont(), Ars::Thing::SetState(), SetWindowRect(), Ars::Window::SetWindowRect(), Ars::XLabel::SetWndText(), Ars::XRect::TopLeft(), VERTICAL, Ars::XRect::Width(), and Ars::XRect::XRect().

Referenced by Ars::XTextBox::Init(), and Ars::XListBox::Init(). 

00020 {
00021         XBox::Init( aStr );
00022 
00023         icstring        tmp = Rsrc::FindCrdOf( aStr , "cfg" );
00024 
00025         sct = Rsrc::GetStr( tmp );
00026         key = Rsrc::GetStr( tmp );
00027         fname = Rsrc::GetStr( tmp );
00028 
00029         if( Width() > Height() )
00030         {
00031                 m_ScrollBarType = HORIZONTAL;
00032                 m_pBtnUpLeft = new XButtonImage(); 
00033                 m_pBtnUpLeft->SetWindowRect( XRect( TopLeft(), XPoint( x + Height(), Bottom() ) ) );
00034                 m_pBtnDownRight = new XButtonImage();
00035                 m_pBtnDownRight->SetWindowRect( XRect( XPoint( Right() - Height() , y ), BottomRight() ) );
00036                 clientRect.x +=  m_pBtnUpLeft->Width() + 1;
00037                 clientRect.w -= 2 * m_pBtnUpLeft->Width() + 1;
00038         }
00039         else
00040         {
00041                 m_ScrollBarType = VERTICAL;
00042                 m_pBtnUpLeft = new XButtonImage();
00043                 m_pBtnUpLeft->SetWindowRect( XRect( TopLeft(), XPoint( Right(), y + Width() ) ) );
00044                 m_pBtnDownRight = new XButtonImage();
00045                 m_pBtnDownRight->SetWindowRect( XRect( XPoint( x , Bottom() - Width() ), BottomRight() ) );
00046                 clientRect.y += m_pBtnUpLeft->Height() + 1;
00047                 clientRect.h -= 2 * m_pBtnUpLeft->Height() + 1;
00048         }
00049 
00050         if( m_iMax == -1 )
00051         {
00052                 tmp = Rsrc::FindCrdOf( aStr , "max" );
00053                 m_iMax = Rsrc::GetInt( tmp , 100 );
00054         }
00055         
00056         m_pBtnUpLeft->SetBgColor( GetBgColor() );
00057         m_pBtnUpLeft->SetFgColor( GetFgColor().FadeColor( 32 ) );
00058         m_pBtnUpLeft->SetState( S_RAISED );
00059         m_pBtnUpLeft->SetFlags( F_NONE );
00060         m_pBtnUpLeft->SetFont( GetFont() );
00061         tmp = Rsrc::FindCrdOf( aStr , "ULButton" );
00062         m_pBtnUpLeft->Init( tmp );
00063         if( m_pBtnUpLeft->GetWindowText().empty() )
00064                 if( m_ScrollBarType == HORIZONTAL )
00065                         m_pBtnUpLeft->SetWndText( "<-" );
00066                 else
00067                         m_pBtnUpLeft->SetWndText( "/\\" );
00068 
00069         m_pBtnDownRight->SetBgColor( GetBgColor() );
00070         m_pBtnDownRight->SetFgColor( GetFgColor().FadeColor( 32 ) );
00071         m_pBtnDownRight->SetFlags( F_NONE );
00072         m_pBtnDownRight->SetState( S_RAISED );
00073         m_pBtnDownRight->SetFont( GetFont() );
00074         tmp = Rsrc::FindCrdOf( aStr , "BRButton" );
00075         m_pBtnDownRight->Init( tmp );
00076         if( m_pBtnDownRight->GetWindowText().empty() )
00077                 if( m_ScrollBarType == HORIZONTAL )
00078                         m_pBtnDownRight->SetWndText( "->" );
00079                 else
00080                         m_pBtnDownRight->SetWndText( "\\/" );
00081         SetWindowRect( *this );
00082 
00083         RGBColor        c = GetFgColor();
00084         SetFgColor( GetBgColor() );
00085         SetBgColor( c );
00086 }

void Ars::XScrollBar::SetLimits (  const int  Min,
const int  Max
)  [inline]
 

Set the limits of the scroll bar.

Definition at line 49 of file xscrollbar.h.

References m_iMax, m_iMin, and Ars::Thing::SetDirty().

Referenced by Ars::XListBox::AddItem(), Ars::XListBox::ClearItems(), Ars::XListBox::Init(), Ars::XListBox::RemoveItem(), and Ars::XTextBox::SetWndText(). 

00049 {       m_iMin = Min;   m_iMax = Max;   SetDirty( true );       }

void Ars::XScrollBar::SetPosition (  const int  iPosition  ) 
 

Set the current thumb position.

Definition at line 128 of file xscrollbar.cpp.

References Ars::Window::GetClientRect(), HORIZONTAL, m_iMax, m_iMin, m_iPosition, m_ScrollBarType, m_ThumbRect, Ars::Window::UpdateWindow(), and VERTICAL.

Referenced by Ars::XListBox::evKeyDown(), evMouseLClick(), evMouseMove(), SetupWindow(), and SetWindowRect(). 

00129 {
00130         m_iPosition = min( m_iMax , max( m_iMin , iPosition ) );
00131         XRect   clt = GetClientRect();
00132 
00133         switch( m_ScrollBarType )
00134         {
00135                 case VERTICAL:
00136                 {
00137                         int yPos = static_cast<int>(clt.y + (clt.h - 16) * (static_cast<double>(m_iPosition - m_iMin) / (m_iMax - m_iMin)) - 1);
00138                         m_ThumbRect.y = yPos;
00139                         m_ThumbRect.h= 16;
00140                         break;
00141                 }
00142                 case HORIZONTAL:
00143                 {
00144                         int xPos = static_cast<int>(clt.x + (clt.w - 16) * (static_cast<double>(m_iPosition - m_iMin) / (m_iMax - m_iMin)) - 1);
00145                         m_ThumbRect.x = xPos;
00146                         m_ThumbRect.w = 16;
00147                         break;
00148                 }
00149                 default:
00150                         //      throw(ExceptionApp("CScrollBar::SetPosition:  Unrecognized ScrollBar Type."));
00151                         break;
00152         }
00153         UpdateWindow();
00154 }

const bool Ars::XScrollBar::SetupWindow (  const Message &  msg  )  [virtual]
 

Deregister the setup_window message.

Reimplemented from Ars::Window.

Definition at line 88 of file xscrollbar.cpp.

References Ars::XButtonImage::ChangeImage(), fname, Cfg::GetCfg(), Cfg::Handler::GetCfgFile(), Ars::Window::GetClientRect(), HORIZONTAL, key, m_pBtnDownRight, m_pBtnUpLeft, m_ScrollBarType, m_ThumbRect, sct, Ars::Window::SetParent(), SetPosition(), and Ars::XButtonImage::SetupWindow().

Referenced by Ars::XTextBox::SetupWindow(), and Ars::XListBox::SetupWindow(). 

00089 {
00090         XBox::SetupWindow( msg );
00091         
00092         if( !sct.empty() && !key.empty() && fname.empty() )
00093                 fname = Cfg::GetCfg().GetCfgFile( sct , key );
00094         else if( fname.empty() && !sct.empty() )
00095                 fname = sct;
00096 
00097         if( !fname.empty() )
00098         {
00099                 Cfg::Handler    &h = Cfg::GetCfg( fname );
00100                 if( m_ScrollBarType = HORIZONTAL )
00101                 {
00102                         m_pBtnUpLeft->ChangeImage( h.GetCfgFile( "scrollbar" , "left" ) );
00103                         m_pBtnDownRight->ChangeImage( h.GetCfgFile( "scrollbar" , "right" ) );
00104                 }
00105                 else
00106                 {
00107                         m_pBtnUpLeft->ChangeImage( h.GetCfgFile( "scrollbar" , "up" ) );
00108                         m_pBtnDownRight->ChangeImage( h.GetCfgFile( "scrollbar" , "down" ) );
00109                 }
00110         }
00111         m_ThumbRect = GetClientRect();
00112 
00113         m_pBtnUpLeft->SetParent( this );
00114         m_pBtnUpLeft->SetupWindow( msg );
00115         m_pBtnDownRight->SetParent( this );
00116         m_pBtnDownRight->SetupWindow( msg );
00117 
00118         SetPosition( 0 );
00119 
00120         MessageServer::Instance().RegisterMessageClient(this, Message::MOUSE_BUTTONDOWN);
00121         MessageServer::Instance().RegisterMessageClient(this, Message::MOUSE_BUTTONUP);
00122         MessageServer::Instance().RegisterMessageClient(this, Message::MOUSE_MOVE);
00123         MessageServer::Instance().RegisterMessageClient(this, Message::CTRL_LCLICK);
00124         
00125         return true;
00126 }

void Ars::XScrollBar::SetWindowRect (  const XRect &  WindowRect  )  [virtual]
 

Giving a control a new WindowRect will move and resize the control

Parameters:
WindowRect A CRect that defines the outer limits of the control

Reimplemented from Ars::Window.

Definition at line 175 of file xscrollbar.cpp.

References Ars::XRect::Bottom(), Ars::XRect::BottomRight(), Ars::Window::clientRect, Ars::XRect::Height(), HORIZONTAL, m_iPosition, m_pBtnDownRight, m_pBtnUpLeft, m_ScrollBarType, m_ThumbRect, Ars::XRect::Right(), Ars::XRect::SetBottom(), SetPosition(), Ars::XRect::SetRight(), Ars::Window::SetWindowRect(), Ars::XRect::TopLeft(), VERTICAL, Ars::XRect::Width(), and Ars::XRect::XRect().

Referenced by Ars::XTextBox::Init(), Init(), Ars::XListBox::Init(), Ars::XTextBox::SetWindowRect(), and Ars::XListBox::SetWindowRect(). 

00176 {
00177         XBox::SetWindowRect( WindowRect );
00178 
00179         // Resposition the thumb rect and the button controls
00180         SetPosition( m_iPosition );
00181 
00182         switch( m_ScrollBarType )
00183         {
00184                 case VERTICAL:
00185                 {
00186                         m_ThumbRect.x = x;
00187                         m_ThumbRect.SetRight( Right() );
00188                         m_pBtnUpLeft->SetWindowRect( XRect( TopLeft(), XPoint( Right(), y + Width() ) ) );
00189                         m_pBtnDownRight->SetWindowRect( XRect( XPoint( x , Bottom() - Width() ), BottomRight() ) );
00190                         clientRect.y = m_pBtnUpLeft->Height() + 1;
00191                         clientRect.SetBottom( Height() - m_pBtnUpLeft->Height() - 1 );
00192                         break;
00193                 }
00194                 case HORIZONTAL:
00195                 {
00196                         m_ThumbRect.y = y;
00197                         m_ThumbRect.SetBottom( Bottom() );
00198                         m_pBtnUpLeft->SetWindowRect( XRect( TopLeft() , XPoint( x + Height(), Bottom() ) ) );
00199                         m_pBtnDownRight->SetWindowRect( XRect( XPoint( Right() - Height(), y ), BottomRight() ) );
00200                         clientRect.x = m_pBtnUpLeft->Width() + 1;
00201                         clientRect.SetRight( Width() - m_pBtnUpLeft->Width() - 1 );
00202                         break;
00203                 }
00204                 default:
00205                         //      throw(ExceptionApp("CScrollBar::SetWindowRect:  Unrecognized ScrollBar Type."));
00206                         break;
00207         }
00208 }

Field Documentation

string Ars::XScrollBar::fname [private]
 

Definition at line 25 of file xscrollbar.h.

Referenced by Init(), and SetupWindow().

string Ars::XScrollBar::key [private]
 

Definition at line 25 of file xscrollbar.h.

Referenced by Init(), and SetupWindow().

bool Ars::XScrollBar::m_bDragging [private]
 

Indicates if the thumb is currently being dragged.

Definition at line 23 of file xscrollbar.h.

Referenced by evMouseButtonDown(), evMouseButtonUp(), and evMouseMove().

int Ars::XScrollBar::m_iMax [private]
 

The maximum value of the scroll bar.

Definition at line 18 of file xscrollbar.h.

Referenced by evMouseMove(), GetMaxLimit(), Init(), SetLimits(), and SetPosition().

int Ars::XScrollBar::m_iMin [private]
 

The minimum value of the scroll bar.

Definition at line 17 of file xscrollbar.h.

Referenced by evMouseMove(), GetMinLimit(), SetLimits(), and SetPosition().

int Ars::XScrollBar::m_iPosition [private]
 

The current position of the scroll bar thumb.

Definition at line 19 of file xscrollbar.h.

Referenced by evMouseButtonUp(), evMouseLClick(), evMouseMove(), GetPosition(), SetPosition(), and SetWindowRect().

XButtonImage* Ars::XScrollBar::m_pBtnDownRight [private]
 

Definition at line 21 of file xscrollbar.h.

Referenced by evMouseLClick(), Init(), SetupWindow(), SetWindowRect(), and ~XScrollBar().

XButtonImage* Ars::XScrollBar::m_pBtnUpLeft [private]
 

A pointer to the Up or Left button.

Definition at line 20 of file xscrollbar.h.

Referenced by evMouseLClick(), Init(), SetupWindow(), SetWindowRect(), and ~XScrollBar().

EScrollBarType Ars::XScrollBar::m_ScrollBarType [private]
 

The type of scroll bar.

Definition at line 16 of file xscrollbar.h.

Referenced by evMouseMove(), Init(), SetPosition(), SetupWindow(), and SetWindowRect().

XRect Ars::XScrollBar::m_ThumbRect [private]
 

The thumb rect.

Definition at line 22 of file xscrollbar.h.

Referenced by Draw(), evMouseButtonDown(), SetPosition(), SetupWindow(), and SetWindowRect().

string Ars::XScrollBar::sct [private]
 

Definition at line 25 of file xscrollbar.h.

Referenced by Init(), and SetupWindow().

The documentation for this class was generated from the following files:
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