class ILogCoordinatesImpl: public ILogCoordinates
This class implements the ILogCoordinates interface. The ILogCoordinates interface provides a mapping of logical units onto container units.
Defined in: LogCoordinatesImpl.h
ILogCoordinatesImpl() : ()
Default constructor for ILogCoordinatesImpl
int m_nMapMode
The mapping mode as defined by the device context
CPoint m_ptLogOrg
The logical origin of this visual part
struct Extents
The extents struct maps logical units to container units
struct Extents m_ext
The extents struct maps logical units to container units
virtual CPoint GetLogOrigin() const
Retrieve the origin in logical units (i.e. scroll position)
virtual CPoint SetLogOrigin(int x, int y)
Sets the logical origin of the contents of this visual part
CPoint OffsetLogOrigin(int xOff, int yOff)
Offsets the logical origin by the specified deltas
virtual CSize GetLogSize() const
Returns the width and height of the component in logical units.
CRect GetLogBounds() const
Returns the logical bounds as a rectangle
virtual CSize SetLogSize(int cx, int cy)
Sets the width and height of the component in logical units.
virtual CPoint GetVirtualOrigin() const
Returns the size of the virtual space shown by this logical part in logical units.
virtual void SetVirtualOrigin(int x, int y)
Sets the virtual origin of the logical part.
virtual CSize GetVirtualSize() const
Returns the size of the virtual space shown by this logical part in logical units.
virtual void SetVirtualSize(int cx, int cy)
Sets the virtual size of the logical part.
virtual int GetMapMode() const
Reports the current mapping mode
virtual int SetMapMode(int nMapMode)
Sets the mapping mode to be used by this visual part
virtual CSize GetExtents() const
Reports the extents of this visual part in container units.
virtual CSize SetExtents(int cx, int cy)
Sets the container extents of this visual part.
virtual CSize GetLogExtents() const
Reports the logical extents of this visual part.
virtual CSize SetLogExtents(int cx, int cy)
Sets the logical extents of this visual part
virtual BOOL ExtentsFixed() const
Indicates if extents can be modified or not.
virtual YAxisDirection GetYAxisDirection() const
Determines the direction of the Y axis.
virtual void LPtoCP(LPPOINT lpPoints, int nCount = 1) const
Convert logical units to container units
virtual void CPtoLP(LPPOINT lpPoints, int nCount = 1) const
Convert container units to logical units
virtual void LPtoDP(LPPOINT lpPoints, int nCount) const
Convert logical units to device units
virtual void DPtoLP(LPPOINT lpPoints, int nCount) const
Convert device units to logical units