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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "stdafx.h"
#include "AnchorMgr.h"
static int ProcessAnchorHorz( int originalCoord, int originalParentSize[2], EAnchorHorz eAnchor, int parentWidth, int parentHeight )
{
if ( eAnchor == k_eAnchorLeft )
return originalCoord;
else
return parentWidth - (originalParentSize[0] - originalCoord);
}
static int ProcessAnchorVert( int originalCoord, int originalParentSize[2], EAnchorVert eAnchor, int parentWidth, int parentHeight )
{
if ( eAnchor == k_eAnchorTop )
return originalCoord;
else
return parentHeight - (originalParentSize[1] - originalCoord);
}
CAnchorDef::CAnchorDef( int dlgItemID, ESimpleAnchor eSimpleAnchor )
{
Init( NULL, dlgItemID, eSimpleAnchor );
}
CAnchorDef::CAnchorDef( int dlgItemID, EAnchorHorz eLeftSide, EAnchorVert eTopSide, EAnchorHorz eRightSide, EAnchorVert eBottomSide )
{
Init( NULL, dlgItemID, eLeftSide, eTopSide, eRightSide, eBottomSide );
}
CAnchorDef::CAnchorDef( HWND hWnd, ESimpleAnchor eSimpleAnchor )
{
Init( hWnd, -1, eSimpleAnchor );
}
CAnchorDef::CAnchorDef( HWND hWnd, EAnchorHorz eLeftSide, EAnchorVert eTopSide, EAnchorHorz eRightSide, EAnchorVert eBottomSide )
{
Init( hWnd, -1, eLeftSide, eTopSide, eRightSide, eBottomSide );
}
void CAnchorDef::Init( HWND hWnd, int dlgItemID, ESimpleAnchor eSimpleAnchor )
{
if ( eSimpleAnchor == k_eSimpleAnchorBottomRight )
{
Init( hWnd, dlgItemID, k_eAnchorRight, k_eAnchorBottom, k_eAnchorRight, k_eAnchorBottom );
}
else if ( eSimpleAnchor == k_eSimpleAnchorAllSides )
{
Init( hWnd, dlgItemID, k_eAnchorLeft, k_eAnchorTop, k_eAnchorRight, k_eAnchorBottom );
}
else if ( eSimpleAnchor == k_eSimpleAnchorStretchRight )
{
Init( hWnd, dlgItemID, k_eAnchorLeft, k_eAnchorTop, k_eAnchorRight, k_eAnchorTop );
}
else if ( eSimpleAnchor == k_eSimpleAnchorRightSide )
{
Init( hWnd, dlgItemID, k_eAnchorRight, k_eAnchorTop, k_eAnchorRight, k_eAnchorTop );
}
else if ( eSimpleAnchor == k_eSimpleAnchorBottomSide )
{
Init( hWnd, dlgItemID, k_eAnchorLeft, k_eAnchorBottom, k_eAnchorLeft, k_eAnchorBottom );
}
}
void CAnchorDef::Init( HWND hWnd, int dlgItemID, EAnchorHorz eLeftSide, EAnchorVert eTopSide, EAnchorHorz eRightSide, EAnchorVert eBottomSide )
{
m_hInputWnd = hWnd;
m_DlgItemID = dlgItemID;
m_AnchorLeft = eLeftSide;
m_AnchorTop = eTopSide;
m_AnchorRight = eRightSide;
m_AnchorBottom = eBottomSide;
}
CAnchorMgr::CAnchorMgr()
{
}
void CAnchorMgr::Init( HWND hParentWnd, CAnchorDef *pAnchors, int nAnchors )
{
m_Anchors.CopyArray( pAnchors, nAnchors );
m_hParentWnd = hParentWnd;
// Figure out the main window's size.
RECT rcParent, rcItem;
GetWindowRect( m_hParentWnd, &rcParent );
m_OriginalParentSize[0] = rcParent.right - rcParent.left;
m_OriginalParentSize[1] = rcParent.bottom - rcParent.top;
// Get all the subitem positions.
for ( int i=0; i < m_Anchors.Count(); i++ )
{
CAnchorDef *pAnchor = &m_Anchors[i];
if ( pAnchor->m_hInputWnd )
pAnchor->m_hWnd = pAnchor->m_hInputWnd;
else
pAnchor->m_hWnd = GetDlgItem( m_hParentWnd, pAnchor->m_DlgItemID );
if ( !pAnchor->m_hWnd )
continue;
GetWindowRect( pAnchor->m_hWnd, &rcItem );
POINT ptTopLeft;
ptTopLeft.x = rcItem.left;
ptTopLeft.y = rcItem.top;
ScreenToClient( m_hParentWnd, &ptTopLeft );
pAnchor->m_OriginalPos[0] = ptTopLeft.x;
pAnchor->m_OriginalPos[1] = ptTopLeft.y;
pAnchor->m_OriginalPos[2] = ptTopLeft.x + (rcItem.right - rcItem.left);
pAnchor->m_OriginalPos[3] = ptTopLeft.y + (rcItem.bottom - rcItem.top);
}
}
void CAnchorMgr::OnSize()
{
// Get the new size.
int width, height;
RECT rcParent;
GetWindowRect( m_hParentWnd, &rcParent );
width = rcParent.right - rcParent.left;
height = rcParent.bottom - rcParent.top;
// Move each item.
for ( int i=0; i < m_Anchors.Count(); i++ )
{
CAnchorDef *pAnchor = &m_Anchors[i];
if ( !pAnchor->m_hWnd )
continue;
RECT rcNew;
rcNew.left = ProcessAnchorHorz( pAnchor->m_OriginalPos[0], m_OriginalParentSize, pAnchor->m_AnchorLeft, width, height );
rcNew.right = ProcessAnchorHorz( pAnchor->m_OriginalPos[2], m_OriginalParentSize, pAnchor->m_AnchorRight, width, height );
rcNew.top = ProcessAnchorVert( pAnchor->m_OriginalPos[1], m_OriginalParentSize, pAnchor->m_AnchorTop, width, height );
rcNew.bottom = ProcessAnchorVert( pAnchor->m_OriginalPos[3], m_OriginalParentSize, pAnchor->m_AnchorBottom, width, height );
SetWindowPos( pAnchor->m_hWnd, NULL, rcNew.left, rcNew.top, rcNew.right-rcNew.left, rcNew.bottom-rcNew.top, SWP_NOZORDER );
InvalidateRect( pAnchor->m_hWnd, NULL, false );
}
}
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