diagramentity.cpp

So you wanted to add a forms editor to your application? A dialog editor? Something that allows draw

{

	m_left = left;

}

void CDiagramEntity::SetRight( double right )
/* ============================================================
	Function :		CDiagramEntity::SetRight
	Description :	Sets the right edge of the object 
					rectangle
	Access :		Public

	Return :		void
	Parameters :	double right	-	New right position
					
	Usage :			Call to set the right edge of the object.
					The object coordinates are expressed as 
					double values to allow unlimited zoom.

   ============================================================*/
{

	m_right = right;

}

void CDiagramEntity::SetTop( double top )
/* ============================================================
	Function :		CDiagramEntity::SetTop
	Description :	Sets the top edge of the object rectangle
	Access :		Public

	Return :		void
	Parameters :	double top	-	New top position
					
	Usage :			Call to set the top edge of the object.
					The object coordinates are expressed as 
					double values to allow unlimited zoom.

   ============================================================*/
{
if( top == m_bottom )
	top = top;
	m_top = top;

}

void CDiagramEntity::SetBottom( double bottom )
/* ============================================================
	Function :		CDiagramEntity::SetBottom
	Description :	Sets the bottom edge of the object 
					rectangle
	Access :		Public

	Return :		void
	Parameters :	double bottom	-	New bottom position
					
	Usage :			Call to set the bottom edge of the object.
					The object coordinates are expressed as 
					double values to allow unlimited zoom.

   ============================================================*/
{

	m_bottom = bottom;

}

void CDiagramEntity::SetMarkerSize( CSize markerSize )
/* ============================================================
	Function :		CDiagramEntity::SetMarkerSize
	Description :	Gets the size of selection markers
	Access :		Protected
	Access :		Public

	Return :		void
	Parameters :	CSize markerSize	-	The new size of a 
											selection marker
					
	Usage :			Call to set a new selection marker size for 
					the object.

   ============================================================*/
{

	m_markerSize = markerSize;

}

CSize CDiagramEntity::GetMarkerSize() const
/* ============================================================
	Function :		CDiagramEntity::GetMarkerSize
	Description :	Gets the size of selection marker
	Access :		Protected
	Access :		Public

	Return :		CSize	-	The current size of a 
								selection marker
	Parameters :	none

	Usage :			Call to get the selection marker size for
					the object.

   ============================================================*/
{

	return m_markerSize;

}

void CDiagramEntity::SetMinimumSize( CSize minimumSize )
/* ============================================================
	Function :		CDiagramEntity::SetMinimumSize
	Description :	Sets the minimum size for instances of 
					this object.
	Access :		Public

	Return :		void
	Parameters :	CSize minimumSize	-	The minimum allowed 
											size
					
	Usage :			Call to set the minimum size of the object.
					It is not possible to resize an object to a 
					size smaller than the minimum allowed size.

   ============================================================*/
{

	m_minimumSize = minimumSize;

}

CSize CDiagramEntity::GetMinimumSize() const
/* ============================================================
	Function :		CDiagramEntity::GetMinimumSize
	Description :	Gets the minimum size for instances of 
					this object.
	Access :		Public

	Return :		CSize	-	The minimum allowed size
	Parameters :	none

	Usage :			Call to get the minimum size of the object.
					It is not possible to resize an object to a 
					size smaller than the minimum allowed size.

   ============================================================*/
{

	return m_minimumSize;

}

void CDiagramEntity::SetMaximumSize( CSize maximumSize )
/* ============================================================
	Function :		CDiagramEntity::SetMaximumSize
	Description :	Sets the maximum size for instances of 
					this object.
	Access :		Public

	Return :		void
	Parameters :	CSize maximumSize	-	The maximum allowed 
											size.
					
	Usage :			Call to set the maximum size of the object.
					It is not possible to resize an object to a 
					size larger than the maximum allowed size.

   ============================================================*/
{

	m_maximumSize = maximumSize;

}

CSize CDiagramEntity::GetMaximumSize() const
/* ============================================================
	Function :		CDiagramEntity::GetMaximumSize
	Description :	Returns the maximum size for instances of 
					this object.
	Access :		Public

	Return :		CSize	-	The maximum allowed size.
	Parameters :	none

	Usage :			Call to get the maximum size of the object.
					It is not possible to resize an object to a 
					size larger than the maximum allowed size.

   ============================================================*/
{

	return m_maximumSize;

}

void CDiagramEntity::SetConstraints( CSize min, CSize max )
/* ============================================================
	Function :		CDiagramEntity::SetConstraints
	Description :	Sets the minimum and maximum sizes for 
					instances of this object. -1 means no 
					constraints.
	Access :		Public

	Return :		void
	Parameters :	CSize min	-	Minimum size
					CSize max	-	Maximum size
					
	Usage :			Call to set the minimum and maximum sizes 
					of the object.
					It is not possible to resize an object to 
					smaller or bigger than the min- and max 
					size.

   ============================================================*/
{

	m_minimumSize = min;
	m_maximumSize = max;

}

CDiagramEntityContainer* CDiagramEntity::GetParent() const
/* ============================================================
	Function :		CDiagramEntity::GetParent
	Description :	Returns a pointer to the parent container.
	Access :		Protected

	Return :		CDiagramEntityContainer*	-	Parent
													container.
	Parameters :	none

	Usage :			Call to get the parent of the object.

   ============================================================*/
{

	return m_parent;

}

void CDiagramEntity::SetPropertyDialog( CDiagramPropertyDlg* dlg, UINT dlgresid )
/* ============================================================
	Function :		CDiagramEntity::SetPropertyDialog
	Description :	Sets the property dialog pointer.
	Access :		Protected

	Return :		void
	Parameters :	CDiagramPropertyDlg* dlg	-	a pointer 
													to a dialog 
													instance. 
					UINT dlgresid				-	The resource 
													id of the 
													dialog template.
					
	Usage :			Call to set a property dialog for the object 
					(normally in the "ctor"). 

   ============================================================*/
{

	m_propertydlg = dlg;
	m_propertydlgresid = dlgresid;

	if( dlg )
		m_propertydlg->SetEntity( this );

}

CDiagramPropertyDlg* CDiagramEntity::GetPropertyDialog() const
/* ============================================================
	Function :		CDiagramEntity::GetPropertyDialog
	Description :	Returns a pointer to the class property 
					dialog.
	Access :		Protected

	Return :		CDiagramPropertyDlg*	-	The dialog 
												pointer. "NULL" 
												if none.
	Parameters :	none

	Usage :			Call to get a pointer to the object property 
					dialog.

   ============================================================*/
{

	return m_propertydlg;

}

double CDiagramEntity::GetZoom() const
/* ============================================================
	Function :		CDiagramEntity::GetZoom
	Description :	Returns the zoom level for the object.
	Access :		Public

	Return :		double	-	
	Parameters :	none

	Usage :			Internal function. Can be called by derived 
					classes to get the zoom level. The zoom 
					level is set by the owning editor when 
					drawing the object, is read-only and this 
					function should only be called from "Draw".

   ============================================================*/
{

	return m_zoom;

}

void CDiagramEntity::SetZoom( double zoom )
/* ============================================================
	Function :		CDiagramEntity::SetZoom
	Description :	Sets the zoom level
	Access :		Protected

	Return :		nothing
	Parameters :	double zoom	-	The new zoom level
					
	Usage :			Internal call.

   ============================================================*/
{
	m_zoom = zoom;
}

int CDiagramEntity::GetGroup() const
/* ============================================================
	Function :		CDiagramEntity::GetGroup
	Description :	Gets the object group.
	Access :		Public

	Return :		int	-	Group of object
	Parameters :	none

	Usage :			Call to get the group for the object. All 
					objects in a group are selected together.

   ============================================================*/
{

	return m_group;

}

void CDiagramEntity::SetGroup( int group )
/* ============================================================
	Function :		CDiagramEntity::SetGroup
	Description :	Sets the object group to "group".
	Access :		Public

	Return :		void
	Parameters :	int group	-	New group to set
					
	Usage :			Call to set a group for the object. All 
					objects in a group are selected together.

   ============================================================*/
{

	m_group = group;

}

CString CDiagramEntity::Export( UINT /*format*/ ) const
/* ============================================================
	Function :		CDiagramEntity::Export
	Description :	Exports the object to format
	Access :		Public

	Return :		CString		-	The object representation 
									in format.
	Parameters :	UINT format	-	The format to export to.
					
	Usage :			Virtual function to allow easy exporting of 
					the objects to different text based formats.

   ============================================================*/
{

	return _T( "" );

}

int CDiagramEntity::GetHitCode( const CPoint& point, const CRect& rect ) const
/* ============================================================
	Function :		CDiagramEntity::GetHitCode
	Description :	Returns the hit point constant for "point" 
					assuming the object rectangle "rect".
	Access :		Public

	Return :		int				-	The hit point, 
										"DEHT_NONE" if none.
	Parameters :	CPoint point	-	The point to check
					CRect rect		-	The rect to check
					
	Usage :			Call to see in what part of the object point 
					lies. The hit point can be one of the following:
						"DEHT_NONE" No hit-point
						"DEHT_BODY" Inside object body
						"DEHT_TOPLEFT" Top-left corner
						"DEHT_TOPMIDDLE" Middle top-side
						"DEHT_TOPRIGHT" Top-right corner
						"DEHT_BOTTOMLEFT" Bottom-left corner
						"DEHT_BOTTOMMIDDLE" Middle bottom-side
						"DEHT_BOTTOMRIGHT" Bottom-right corner
						"DEHT_LEFTMIDDLE" Middle left-side
						"DEHT_RIGHTMIDDLE" Middle right-side

   ============================================================*/
{

	int result = DEHT_NONE;

	if( rect.PtInRect( point ) )
		result = DEHT_BODY;

	CRect rectTest;

	rectTest = GetSelectionMarkerRect( DEHT_TOPLEFT, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_TOPLEFT;

	rectTest = GetSelectionMarkerRect( DEHT_TOPMIDDLE, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_TOPMIDDLE;

	rectTest = GetSelectionMarkerRect( DEHT_TOPRIGHT, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_TOPRIGHT;

	rectTest = GetSelectionMarkerRect( DEHT_BOTTOMLEFT, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_BOTTOMLEFT;

	rectTest = GetSelectionMarkerRect( DEHT_BOTTOMMIDDLE, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_BOTTOMMIDDLE;

	rectTest = GetSelectionMarkerRect( DEHT_BOTTOMRIGHT, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_BOTTOMRIGHT;

	rectTest = GetSelectionMarkerRect( DEHT_LEFTMIDDLE, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_LEFTMIDDLE;

	rectTest = GetSelectionMarkerRect( DEHT_RIGHTMIDDLE, rect );
	if( rectTest.PtInRect( point ) )
		result = DEHT_RIGHTMIDDLE;

	return result;

}