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//=========== Copyright Valve Corporation, All rights reserved. ===============//
//
// Purpose:
//=============================================================================//
#ifndef CAROUSEL_H
#define CAROUSEL_H
#ifdef _WIN32
#pragma once
#endif
#include "mathlib/mathlib.h"
#include "mathlib/beziercurve.h"
#include "panel2d.h"
#include "panorama/controls/label.h"
#include "panorama/controls/mousescroll.h"
namespace panorama
{
DECLARE_PANORAMA_EVENT0( ResetCarouselMouseWheelCounts );
DECLARE_PANORAMA_EVENT1( SetCarouselSelectedChild, CPanelPtr<CPanel2D> );
//-----------------------------------------------------------------------------
// Purpose: Button
//-----------------------------------------------------------------------------
class CCarousel : public CPanel2D
{
DECLARE_PANEL2D( CCarousel, CPanel2D );
public:
CCarousel( CPanel2D *parent, const char * pchPanelID );
virtual ~CCarousel();
enum EFocusType
{
k_EFocusTypeLeft,
k_EFocusTypeEdge,
k_EFocusTypeCenter
};
void SetTitleText( const char *pchTitle );
void SetTitleVisible( bool bVisible );
void SetWrap( bool bWrap );
void SetFocusType( EFocusType eType );
void SetOffset( CUILength len );
void DrawFocusFrame( bool bDraw );
void DeleteChildren();
bool SetFocusToIndex( int iFocus );
int GetFocusIndex() const { return GetChildIndex( m_pFocusedChild.Get() ); }
CPanel2D *GetFocusChild() const { return m_pFocusedChild.Get(); }
// Sets the child that will get focus when the carousel has focus. Remembered between focus calls
void SetSelectedChild( CPanel2D *pPanel );
// Sets the panel for which focus state is checked when applying focus offset.
void SetFocusOffsetPanel( CPanel2D *pPanel ) { m_ptrPanelFocusOffset = pPanel; }
virtual bool BSetProperty( CPanoramaSymbol symName, const char *pchValue ) OVERRIDE;
virtual void GetDebugPropertyInfo( CUtlVector< DebugPropertyOutput_t *> *pvecProperties );
virtual void OnLayoutTraverse( float flFinalWidth, float flFinalHeight );
virtual void Paint();
virtual bool OnMoveRight( int nRepeats );
virtual bool OnMoveLeft( int nRepeats );
virtual bool OnTabForward( int nRepeats ) { return OnMoveRight( nRepeats ); }
virtual bool OnTabBackward( int nRepeats ) { return OnMoveLeft( nRepeats ); }
virtual bool OnMouseWheel( const panorama::MouseData_t &code );
virtual void OnStylesChanged();
virtual void OnUIScaleFactorChanged( float flScaleFactor ) OVERRIDE;
virtual bool BRequiresContentClipLayer() OVERRIDE { return true; }
virtual void OnInitializedFromLayout();
virtual void SetupJavascriptObjectTemplate() OVERRIDE;
#ifdef DBGFLAG_VALIDATE
virtual void ValidateClientPanel( CValidator &validator, const tchar *pchName );
#endif
protected:
virtual bool OnSetFocusToNextPanel( int nRepeats, EFocusMoveDirection moveType, bool bAllowWrap, float flTabIndexCurrent, float flXPosCurrent, float flYPosCurrent, float flXStart, float fYStart ) OVERRIDE
{
if ( m_bWrap )
{
switch( moveType )
{
case k_ENextInTabOrder:
case k_ENextByXPosition:
return OnMoveRight( nRepeats );
case k_EPrevInTabOrder:
case k_EPrevByXPosition:
return OnMoveLeft( nRepeats );
default:
break;
}
}
else
{
int iFocusChild = GetChildIndex( m_pFocusedChild.Get() );
switch( moveType )
{
case k_ENextInTabOrder:
case k_ENextByXPosition:
if ( iFocusChild < GetChildCount() - 1 )
{
return OnMoveRight( nRepeats );
}
break;
case k_EPrevInTabOrder:
case k_EPrevByXPosition:
if ( iFocusChild > 0 )
{
return OnMoveLeft( nRepeats );
}
break;
default:
break;
}
}
return false;
}
// child management
virtual void OnBeforeChildrenChanged();
virtual void OnCallBeforeStyleAndLayout() { UpdateFocusAndDirtyChildStyles(); }
private:
enum EFocusEdge
{
k_EFocusEdgeLeft,
k_EFocusEdgeRight
};
// event handlers
bool EventInputFocusSet( const CPanelPtr< IUIPanel > &ptrPanel );
bool EventInputFocusLost( const CPanelPtr< IUIPanel > &ptrPanel );
bool OnResetMouseWheelCounts();
bool EventCarouselMouseScroll( const CPanelPtr< IUIPanel > &ptrPanel, int cRepeat );
bool EventWindowCursorShown( IUIWindow *pWindow );
bool EventWindowCursorHidden( IUIWindow *pWindow );
// owned panels
CLabel *CreateTitleLabel();
// focus
bool BSetFocusToChild( CPanel2D *pPanel );
void MarkFocusDirty();
bool UpdateFocusAndDirtyChildStyles();
// helpers
int GetPreviousWrapPanel( int i );
int GetNextWrapPanel( int i );
float GetFinalChildWidth( CPanel2D *pChild, float flContainerHeight );
void GetFinalChildDimensions( float *pflWidth, float *pflHeight, CPanel2D *pChild, float flContainerHeight );
int CalcIndexDistanceBetweenPanels( int iLHS, int iRHS );
int GetNextPanelInLayout( int iStart );
int GetPreviousPanelInLayout( int iStart );
void AddCarouselStyle( CPanel2D *pChild, int iChild, int iCurrentFocus );
void RemoveCarouselStyle( CPanel2D *pChild, int iChild, int iCurrentFocus );
void RegisterForCursorChanges();
void UnregisterForCursorChanges();
// configured offets
void GetPanelOffsets( CUILength *plenX, CUILength *plenY, CUILength *plenZ, int nDistanceFromFocus, float flWidth, float flHeight );
CUILength GetPanelOffset( int nDistanceFromFocus, bool bUseFocus, const CUtlVector< CUILength > &vecOffsets, const CUtlVector< CUILength > &vecFocusOffsets );
// layout related
void GetLayoutStart( int iFocusChild, float *pflOffset, float flLeft, float flCarouselOffset, const float flContainerWidth, const float flContainerHeight );
void LayoutChildPanels( int iFocusChild, float flOffset, float flLeft, float flRight, const float flContainerWidth, const float flContainerHeight, const CUtlVector< CPanel2D* > &vecNewChildren );
bool BPositionPanelRight( int iPanel, int nDistanceFromFocus, float *pflOffset, float flLeft, float flContainerWidth, float flContainerHeight, bool bCheckFits, const CUtlVector< CPanel2D* > &vecNewChildren );
bool BPositionPanelLeft( int iPanel, int nDistanceFromFocus, float *pflOffset, float flLeft, float flContainerWidth, float flContainerHeight, bool bCheckFits, const CUtlVector< CPanel2D* > &vecNewChildren );
void LayoutMouseScrollRegions( float flFinalWidth, float flFinalHeight );
struct DirtyChildStyles_t
{
int m_iOriginalFocus;
CUtlVector< CPanel2D* > m_vecPanels;
};
DirtyChildStyles_t *m_pDirtyChildStyles;
CLabel *m_pTitleLabel;
CMouseScrollRegion *m_pLeftMouseScrollRegion;
CMouseScrollRegion *m_pRightMouseScrollRegion;
CPanelPtr< CPanel2D > m_pFocusedChild;
EFocusType m_eFocusType;
bool m_bWrap;
CUILength m_lenOffset;
bool m_bIncludeScale2d;
// for edge focus
EFocusEdge m_eLastFocusEdge;
int m_iFocusLastEdge;
struct ChildOffsets_t
{
CUtlVector< CUILength > x;
CUtlVector< CUILength > y;
CUtlVector< CUILength > z;
};
ChildOffsets_t m_childOffsets;
ChildOffsets_t m_childOffsetsFocus;
bool m_bFlowingLayout;
bool m_bHadFocus;
double m_flLastMouseWheel;
uint32 m_unMouseWheelCount;
double m_flLastMove;
bool m_bDelayedMovePosted;
bool m_bRegisteredForCursorChanges;
bool m_bShuffleIntoView;
int32 m_nPanelsVisible;
CPanelPtr< CPanel2D > m_ptrPanelFocusOffset;
};
} // namespace panorama
#endif // CAROUSEL_H
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