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This commit is contained in:
FluorescentCIAAfricanAmerican
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include <stdafx.h>
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#include "IconComboBox.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include <tier0/memdbgon.h>
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//-----------------------------------------------------------------------------
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// Purpose: Constructor
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//-----------------------------------------------------------------------------
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CIconComboBox::CIconComboBox()
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{
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}
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//-----------------------------------------------------------------------------
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// Purpose: Deconstructor
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//-----------------------------------------------------------------------------
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CIconComboBox::~CIconComboBox()
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{
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CIconComboBox::Init( void )
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{
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// initialize the icon size
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m_IconSize.cx = GetSystemMetrics( SM_CXICON );
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m_IconSize.cy = GetSystemMetrics( SM_CYICON );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::AddIcon( LPCTSTR pIconName )
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{
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//
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// create/load an icon from file
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//
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// NULL - no icons in file
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// 1 - not a proper icon file
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//
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HICON hIcon = ExtractIcon( AfxGetInstanceHandle(), pIconName, 0 );
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if( ( hIcon == ( HICON )1 ) || !hIcon )
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return CB_ERR;
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//
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// add the icon to the combo box - returning the index
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//
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// CB_ERR - general error adding icon
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// CB_ERRSPACE - insufficient space necessary to add icon
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//
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int ndx = CComboBox::AddString( pIconName );
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if( ( ndx == CB_ERR ) || ( ndx == CB_ERRSPACE ) )
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return ndx;
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//
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// associate the icon with the index
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//
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// CB_ERR - general error
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//
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int result = SetItemData( ndx, ( DWORD )hIcon );
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if( result == CB_ERR )
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return result;
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// return the icon index
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return ndx;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::InsertIcon( LPCTSTR pIconName, int ndx )
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{
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//
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// create an icon from file
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//
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// NULL - no icons in file
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// 1 - not a proper icon file
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//
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HICON hIcon = ExtractIcon( AfxGetInstanceHandle(), pIconName, 0 );
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if( ( hIcon == ( HICON )1 ) || !hIcon )
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return CB_ERR;
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//
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// insert the icon into the combo box -- returning the index
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//
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// CB_ERR - general error adding icon
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// CB_ERRSPACE - insufficient space necessary to add icon
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//
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int result = CComboBox::InsertString( ndx, pIconName );
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if( ( result == CB_ERR ) || ( result == CB_ERRSPACE ) )
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return result;
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//
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// associate the icon with the index
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//
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// CB_ERR - general error
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//
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result = SetItemData( ndx, ( DWORD )hIcon );
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if( result == CB_ERR )
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return result;
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// return the icon index
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return ndx;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::SelectIcon( LPCTSTR pIconName )
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{
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//
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// search the combo box list for the given string, -1 = search the whole list
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//
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// CB_ERR - unsuccessful search
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//
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int ndx = CComboBox::FindStringExact( -1, pIconName );
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if( ndx == CB_ERR )
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return CB_ERR;
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// set the selection current
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return CComboBox::SetCurSel( ndx );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::SelectIcon( int ndx )
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{
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// set the selection current
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return CComboBox::SetCurSel( ndx );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::DeleteIcon( LPCTSTR pIconName )
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{
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//
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// search the combo box list for the given string, -1 = search the whole list
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//
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// CB_ERR - unsuccessful search
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//
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int ndx = CComboBox::FindStringExact( -1, pIconName );
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if( ndx == CB_ERR )
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return CB_ERR;
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// remove the icon from the combo box
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return CComboBox::DeleteString( ndx );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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int CIconComboBox::DeleteIcon( int ndx )
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{
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// remove the icon from the combo box
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return CComboBox::DeleteString( ndx );
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}
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//-----------------------------------------------------------------------------
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// Purpose: don't allow the icon combo box to "AddString"
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//-----------------------------------------------------------------------------
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int CIconComboBox::AddString( LPCTSTR lpszString )
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{
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assert( FALSE );
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return CB_ERR;
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}
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//-----------------------------------------------------------------------------
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// Purpose: don't allow the icon combo box to "InsertString"
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//-----------------------------------------------------------------------------
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int CIconComboBox::InsertString( int nIndex, LPCTSTR lpszString )
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{
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assert( FALSE );
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return CB_ERR;
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}
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//-----------------------------------------------------------------------------
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// Purpose: don't allow the icon combo box to "DeleteString"
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//-----------------------------------------------------------------------------
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int CIconComboBox::DeleteString( int nIndex )
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{
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assert( FALSE );
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return CB_ERR;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CIconComboBox::MeasureItem( LPMEASUREITEMSTRUCT lpMeasureItemStruct )
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{
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lpMeasureItemStruct->itemWidth = m_IconSize.cx;
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lpMeasureItemStruct->itemHeight = m_IconSize.cy + 1;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CIconComboBox::DrawItem( LPDRAWITEMSTRUCT lpDrawItemStruct )
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{
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CBrush *pOldBrush = NULL;
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CPen *pOldPen = NULL;
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//
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// the icon is "disabled"
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//
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if( !IsWindowEnabled() )
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{
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SetDisabledBrushAndPen( lpDrawItemStruct, &pOldBrush, &pOldPen );
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OnDrawIcon( lpDrawItemStruct );
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ResetBrushAndPen( lpDrawItemStruct, pOldBrush, pOldPen );
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return;
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}
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//
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// the icon is "selected"
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//
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if( ( lpDrawItemStruct->itemState & ODS_SELECTED ) &&
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( lpDrawItemStruct->itemAction & ( ODA_SELECT | ODA_DRAWENTIRE ) ) )
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{
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SetSelectedBrushAndPen( lpDrawItemStruct, &pOldBrush, &pOldPen );
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OnDrawIcon( lpDrawItemStruct );
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ResetBrushAndPen( lpDrawItemStruct, pOldBrush, pOldPen );
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}
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//
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// the icon is "un-selected"
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//
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if( !( lpDrawItemStruct->itemState & ODS_SELECTED ) &&
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( lpDrawItemStruct->itemAction & ( ODA_SELECT | ODA_DRAWENTIRE ) ) )
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{
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SetUnSelectedBrushAndPen( lpDrawItemStruct, &pOldBrush, &pOldPen );
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OnDrawIcon( lpDrawItemStruct );
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ResetBrushAndPen( lpDrawItemStruct, pOldBrush, pOldPen );
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}
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//
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// icon gains focus
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//
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if( lpDrawItemStruct->itemAction & ODA_FOCUS )
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{
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// get the device context
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// render the focus rectangle
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pDC->DrawFocusRect( &lpDrawItemStruct->rcItem );
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}
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CIconComboBox::OnDrawIcon( LPDRAWITEMSTRUCT lpDrawItemStruct )
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{
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// any items to draw?
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if( GetCount() == 0 )
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return;
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// get the device context - to draw
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// get the current icon to render
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HICON hIcon = ( HICON )lpDrawItemStruct->itemData;
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if( !hIcon )
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return;
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// calculate the icon's upper left corner
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int UpperLeftX = lpDrawItemStruct->rcItem.left +
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( ( lpDrawItemStruct->rcItem.right - lpDrawItemStruct->rcItem.left ) / 2 ) -
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( m_IconSize.cx / 2 );
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int UpperLeftY = lpDrawItemStruct->rcItem.top +
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( ( lpDrawItemStruct->rcItem.bottom - lpDrawItemStruct->rcItem.top ) / 2 ) -
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( m_IconSize.cy / 2 );
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// render the icon
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pDC->DrawIcon( UpperLeftX, UpperLeftY, hIcon );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CIconComboBox::ResetBrushAndPen( LPDRAWITEMSTRUCT lpDrawItemStruct,
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CBrush *pBrush, CPen *pPen )
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{
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// get the device context
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// reset brush and pen
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pDC->SelectObject( pBrush );
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pDC->SelectObject( pPen );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CIconComboBox::SetDisabledBrushAndPen( LPDRAWITEMSTRUCT lpDrawItemStruct,
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CBrush **ppOldBrush, CPen **ppOldPen )
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{
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// get the device context
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// set brush and pen to light gray
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CBrush brushDisabled( RGB( 192, 192, 192 ) );
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CPen penDisabled( PS_SOLID, 1, RGB( 192, 192, 192 ) );
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// set the brush and pen current -- saving the old brush and pen state
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*ppOldBrush = pDC->SelectObject( &brushDisabled );
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*ppOldPen = pDC->SelectObject( &penDisabled );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CIconComboBox::SetUnSelectedBrushAndPen( LPDRAWITEMSTRUCT lpDrawItemStruct,
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CBrush **ppOldBrush, CPen **ppOldPen )
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{
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// get the device context
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// set the brush and pen "un-highlighted"
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CBrush brushUnSelected( GetSysColor( COLOR_WINDOW ) );
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CPen penUnSelected( PS_SOLID, 1, GetSysColor( COLOR_WINDOW ) );
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// set the brush and pen current -- saving the old brush and pen state
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*ppOldBrush = pDC->SelectObject( &brushUnSelected );
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*ppOldPen = pDC->SelectObject( &penUnSelected );
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//
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// set some addition render state - background and text color
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//
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pDC->Rectangle( &lpDrawItemStruct->rcItem );
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pDC->SetBkColor( GetSysColor( COLOR_WINDOW ) );
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pDC->SetTextColor( GetSysColor( COLOR_WINDOWTEXT ) );
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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void CIconComboBox::SetSelectedBrushAndPen( LPDRAWITEMSTRUCT lpDrawItemStruct,
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CBrush **ppOldBrush, CPen **ppOldPen )
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{
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// get the device context
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CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );
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// set the brush and pen "highlighted"
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CBrush brushSelected( GetSysColor( COLOR_HIGHLIGHT ) );
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CPen penSelected( PS_SOLID, 1, GetSysColor( COLOR_HIGHLIGHT ) );
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// set the brush and pen current -- saving the old brush and pen state
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*ppOldBrush = pDC->SelectObject( &brushSelected );
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*ppOldPen = pDC->SelectObject( &penSelected );
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//
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// set some addition render state - background and text color
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//
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pDC->Rectangle( &lpDrawItemStruct->rcItem );
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pDC->SetBkColor( GetSysColor( COLOR_HIGHLIGHT ) );
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pDC->SetTextColor( GetSysColor( COLOR_HIGHLIGHTTEXT ) );
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}
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