/* ==========================================================================
CNetworkSymbol
Author : Johan Rosengren, Abstrakt Mekanik AB
Date : 2004-05-04
Purpose : CNetworkSymbol derives from CDiagramEntity, and is an
object drawing a DIB from the application resources.
Description : The class adds a member for the resource id of the DIB
to load, in addition to the normal overrides for
creating CDiagramEntity-instances.
Usage : Use as a CDiagramEntity.
========================================================================*/
#include "stdafx.h"
#include "NetworkSymbol.h"
#include "LinkFactory.h"
#include "DiagramEditor/Tokenizer.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
CNetworkSymbol::CNetworkSymbol( UINT resid )
/* ============================================================
Function : CNetworkSymbol::CNetworkSymbol
Description : constructor
Return : void
Parameters : UINT resid - Resource id of icon to show.
Usage :
============================================================*/
{
m_symbol = resid;
SetConstraints( CSize( 32, 44 ), CSize( -1, -1 ) );
SetType( _T( "network_symbol" ) );
SetTitle( _T( "title" ) );
SetName( CLinkFactory::GetID() );
SetMarkerSize( CSize( 6, 6 ) );
SetPropertyDialog( &m_dlg, CPropertyDialog::IDD );
}
CNetworkSymbol::~CNetworkSymbol()
/* ============================================================
Function : CNetworkSymbol::~CNetworkSymbol
Description : destructor
Return : void
Parameters : none
Usage :
============================================================*/
{
if( m_dlg.m_hWnd )
m_dlg.DestroyWindow();
}
void CNetworkSymbol::SetSymbol( UINT resid )
/* ============================================================
Function : CNetworkSymbol::SetSymbol
Description : Sets the reource id for the symbol
Return : void
Parameters : UINT resid - Resource id of icon
Usage :
============================================================*/
{
m_symbol = resid;
}
CDiagramEntity* CNetworkSymbol::Clone()
/* ============================================================
Function : CNetworkSymbol::Clone
Description : Clone this object to a new object.
Return : CDiagramEntity* - The new object.
Parameters : none
Usage : Call to create a clone of the object. The
caller will have to delete the object.
============================================================*/
{
CNetworkSymbol* obj = new CNetworkSymbol( m_symbol );
obj->Copy( this );
return obj;
}
CDiagramEntity* CNetworkSymbol::CreateFromString( const CString& str )
/* ============================================================
Function : CNetworkSymbol::CreateFromString
Description : Static factory function that creates and
returns an instance of this class if str
is a valid representation.
Return : CDiagramEntity* - The object, or NULL
if str is not a
representation of
this type.
Parameters : const CString& str - The string to create
from.
Usage : Can be used as a factory for text file loads.
Each object type should have its own
version - the default one is a model
implementation.
============================================================*/
{
CNetworkSymbol* obj = new CNetworkSymbol( 0 );
if(!obj->FromString( str ) )
{
delete obj;
obj = NULL;
}
return obj;
}
int CNetworkSymbol::GetHitCode( CPoint point ) const
/* ============================================================
Function : CNetworkSymbol::GetHitCode
Description : Returns the hit point constant for point.
Return : int - The hit point,
DEHT_NONE if none.
Parameters : CPoint point - The point to check
Usage : Call to see in what part of the object point
lies.
============================================================*/
{
return CDiagramEntity::GetHitCode( point );
}
CPoint CNetworkSymbol::GetLinkPosition()
/* ============================================================
Function : CNetworkSymbol::GetLinkPosition
Description : Returns the position of a link.
Return : CPoint - The position of the link,
Parameters : none
Usage : Called while drawing links
============================================================*/
{
CPoint point( -1, -1 );
CRect rect = GetRect();
point.x = rect.left + rect.Width() / 2;
point.y = rect.top + rect.Height() / 2;
return point;
}
void CNetworkSymbol::Draw( CDC* dc, CRect rect )
/* ============================================================
Function : CNetworkSymbol::Draw
Description : Draws the object.
Return : void
Parameters : CDC* dc - The CDC to draw to.
CRect rect - The real rectangle of the
object.
Usage : The function should clean up all selected
objects. Note that the CDC is a memory CDC,
so creating a memory CDC in this function
will probably not speed up the function.
============================================================*/
{
ASSERT( m_symbol );
dc->SelectStockObject( BLACK_PEN );
dc->SelectStockObject( WHITE_BRUSH );
CDC memDC;
memDC.CreateCompatibleDC( dc );
HBITMAP hbitmap = (HBITMAP)::LoadImage(AfxGetResourceHandle(),
MAKEINTRESOURCE( m_symbol ),
IMAGE_BITMAP,
0,0,
LR_CREATEDIBSECTION
);
CBitmap* bitmap = CBitmap::FromHandle( hbitmap );
CBitmap* oldbitmap = memDC.SelectObject( bitmap );
dc->StretchBlt( rect.left, rect.top, rect.Width(), rect.Height() - round( 12 * GetZoom() ), &memDC, 0, 0, 32, 32, SRCCOPY );
memDC.SelectObject( oldbitmap );
bitmap->DeleteObject();
CRect r( rect );
r.top = r.bottom - round( 12.0 * GetZoom() );
CFont font;
font.CreateFont( -round( 10.0 * GetZoom() ), 0,0,0,FW_NORMAL,0,0,0,0,0,0,0,0, _T( "Arial" ) );
dc->SelectObject( &font );
COLORREF oldback = dc->GetBkColor();
COLORREF oldtext = dc->GetTextColor();
if( IsSelected() )
{
dc->SetTextColor( RGB( 255, 255, 255 ) );
dc->SetBkColor( RGB( 128, 128, 128 ) );
}
dc->DrawText( GetTitle(), r, DT_NOPREFIX | DT_WORDBREAK | DT_CENTER );
dc->SelectStockObject( DEFAULT_GUI_FONT );
dc->SetTextColor( oldtext );
dc->SetBkColor( oldback );
}
void CNetworkSymbol::Copy( CDiagramEntity* obj )
/* ============================================================
Function : CNetworkSymbol::Copy
Description : Copy the information in obj to this object.
Return : void
Parameters : CDiagramEntity* obj - The object to copy
from.
Usage : Copies basic information. from obj to this.
GetType can be used to check for the correct
object type in overridden versions.
============================================================*/
{
CDiagramEntity::Copy( obj );
m_symbol = static_cast< CNetworkSymbol* >( obj )->m_symbol;
}
void CNetworkSymbol::DrawSelectionMarkers( CDC* dc, CRect rect ) const
/* ============================================================
Function : CNetworkSymbol::DrawSelectionMarkers
Description :
Return : void
Parameters : CDC* - CDC to draw to
CRect - True rectangle of symbol
Usage : Overridden to get rid of selection markers.
We draw the selected state by darkening
the title instead.
============================================================*/
{
// Leave empty
CDiagramEntity::DrawSelectionMarkers( dc, rect );
}
BOOL CNetworkSymbol::FromString( const CString& str )
/* ============================================================
Function : CNetworkSymbol::FromString
Description : Sets the values for an object from str.
Return : BOOL - TRUE if str
represents an
object of this
type.
Parameters : const CString& str - Possible text
format
representation.
Usage : Can be called to fill an existing object
with information from a string created with
GetString.
============================================================*/
{
BOOL result = FALSE;
CString data( str );
if( LoadFromString( data ) )
{
CTokenizer tok( data );
int resid;
tok.GetAt( 0, resid );
SetSymbol( resid );
result = TRUE;
}
return result;
}
CString CNetworkSymbol::GetString() const
/* ============================================================
Function : CNetworkSymbol::GetString
Description : Creates a string representing the object.
Return : CString - The resulting string
Parameters : none
Usage : Used to save this object to a text file.
============================================================*/
{
CString str;
str.Format( _T( ",%i;" ),
GetSymbol()
);
str = GetDefaultGetString() + str;
return str;
}
UINT CNetworkSymbol::GetSymbol() const
/* ============================================================
Function : CNetworkSymbol::GetSymbol
Description : Gets the current resource id for the symbol.
Access :
Return : UINT - Current resource id
Parameters : none
Usage : Call to get the current resource id.
============================================================*/
{
return m_symbol;
}
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