632 lines
22 KiB
C++
632 lines
22 KiB
C++
//---------------------------------------------------------------------------
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// DrawHelp.cpp - flat drawing helper routines
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//---------------------------------------------------------------------------
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#include "stdafx.h"
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#include "DrawHelp.h"
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#include "rgn.h"
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#define cxRESIZE (ClassicGetSystemMetrics(SM_CXEDGE)+ClassicGetSystemMetrics( SM_CXSIZEFRAME ))
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#define cyRESIZE (ClassicGetSystemMetrics(SM_CYEDGE)+ClassicGetSystemMetrics( SM_CYSIZEFRAME ))
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#define cxRESIZEPAD ClassicGetSystemMetrics(SM_CXVSCROLL)
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#define cyRESIZEPAD ClassicGetSystemMetrics(SM_CYHSCROLL)
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//---------------------------------------------------------------------------
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typedef WORD (* HITTESTRECTPROC)(LPCRECT, int, int, const POINT&, WORD);
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WORD _HitTestRectCorner( HITTESTRECTPROC, HITTESTRECTPROC, LPCRECT,
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int, int, int, int, const POINT&,
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WORD, WORD, WORD, WORD );
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//---------------------------------------------------------------------------
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WORD _HitTestRectLeft(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return ((WORD)((pt.x <= (prc->left + cxMargin)) ? HTLEFT : wMiss));
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectTop(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return ((WORD)((pt.y <= (prc->top + cyMargin)) ? HTTOP : wMiss));
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectRight(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return ((WORD)((pt.x >= (prc->right - cxMargin)) ? HTRIGHT : wMiss));
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectBottom(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return ((WORD)((pt.y >= (prc->bottom - cyMargin)) ? HTBOTTOM : wMiss));
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectTopLeft(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return _HitTestRectCorner(
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_HitTestRectLeft, _HitTestRectTop, prc,
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cxMargin, cyMargin, cxRESIZEPAD, cyRESIZEPAD,
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pt, HTTOPLEFT, HTLEFT, HTTOP, wMiss );
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectTopRight(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return _HitTestRectCorner(
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_HitTestRectRight, _HitTestRectTop, prc,
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cxMargin, cyMargin, cxRESIZEPAD, cyRESIZEPAD,
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pt, HTTOPRIGHT, HTRIGHT, HTTOP, wMiss );
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectBottomLeft(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return _HitTestRectCorner(
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_HitTestRectLeft, _HitTestRectBottom, prc,
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cxMargin, cyMargin, cxRESIZEPAD, cyRESIZEPAD,
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pt, HTBOTTOMLEFT, HTLEFT, HTBOTTOM, wMiss );
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectBottomRight(
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LPCRECT prc, int cxMargin, int cyMargin, const POINT& pt, WORD wMiss )
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{
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return _HitTestRectCorner(
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_HitTestRectRight, _HitTestRectBottom, prc,
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cxMargin, cyMargin, cxRESIZEPAD, cyRESIZEPAD,
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pt, HTBOTTOMRIGHT, HTRIGHT, HTBOTTOM, wMiss );
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}
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//---------------------------------------------------------------------------
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WORD _HitTestRectCorner(
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HITTESTRECTPROC pfnX, HITTESTRECTPROC pfnY,
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LPCRECT prc, // target rect
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int cxMargin, int cyMargin, // width, height of resizing borders
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int cxMargin2, int cyMargin2, // width, height of scrollbars
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const POINT& pt, // test point
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WORD wHitC, WORD wHitX, WORD wHitY, // winning hittest codes
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WORD wMiss ) // losing hittest code
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{
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WORD wRetX = pfnX( prc, cxMargin, cyMargin, pt, wMiss );
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WORD wRetY = pfnY( prc, cxMargin, cyMargin, pt, wMiss );
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if( wMiss != wRetX && wMiss != wRetY )
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return wHitC;
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if( wMiss != wRetX )
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{
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wMiss = wHitX;
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if( wMiss != pfnY( prc, cxMargin2, cyMargin2, pt, wMiss ) )
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return wHitC;
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}
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else if( wMiss != wRetY )
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{
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wMiss = wHitY;
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if( wMiss != pfnX( prc, cxMargin2, cyMargin2, pt, wMiss ) )
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return wHitC;
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}
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return wMiss;
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}
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//---------------------------------------------------------------------------
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WORD HitTest9Grid( LPCRECT prc, const MARGINS& margins, const POINT& pt )
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{
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ASSERT(PtInRect(prc,pt));
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WORD wHit = HTCLIENT;
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// test left side
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if( HTLEFT == _HitTestRectLeft( prc, margins.cxLeftWidth, 0, pt, wHit ) )
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{
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if( HTTOP == _HitTestRectTop( prc, 0, margins.cyTopHeight, pt, wHit ) )
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return HTTOPLEFT;
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if( HTBOTTOM == _HitTestRectBottom( prc, 0, margins.cyBottomHeight, pt, wHit ) )
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return HTBOTTOMLEFT;
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wHit = HTLEFT;
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}
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else // test right side
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if( HTRIGHT == _HitTestRectRight( prc, margins.cxRightWidth, 0, pt, wHit ) )
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{
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if( HTTOP == _HitTestRectTop( prc, 0, margins.cyTopHeight, pt, wHit ) )
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return HTTOPRIGHT;
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if( HTBOTTOM == _HitTestRectBottom( prc, 0, margins.cyBottomHeight, pt, wHit ) )
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return HTBOTTOMRIGHT;
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wHit = HTRIGHT;
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}
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else // test top
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if( HTTOP == _HitTestRectTop( prc, 0, margins.cyTopHeight, pt, wHit ) )
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{
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return HTTOP;
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}
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else // test bottom
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if( HTBOTTOM == _HitTestRectBottom( prc, 0, margins.cyBottomHeight, pt, wHit ) )
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{
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return HTBOTTOM;
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}
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return wHit;
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}
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//---------------------------------------------------------------------------
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WORD _HitTestResizingRect( DWORD dwHTFlags, LPCRECT prc, const POINT& pt,
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WORD w9GridHit, WORD wMiss )
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{
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WORD wHit = wMiss;
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BOOL fTestLeft = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_LEFT);
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BOOL fTestTop = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_TOP);
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BOOL fTestRight = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_RIGHT);
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BOOL fTestBottom = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_BOTTOM);
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BOOL fTestCaption = TESTFLAG( dwHTFlags, HTTB_CAPTION );
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switch( w9GridHit )
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{
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case HTLEFT:
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if( fTestLeft )
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{
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// first test for a hit in the corner resizing areas, respecting caller's option flags.
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if( (fTestTop && (wHit = _HitTestRectTopLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTLEFT) ||
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(fTestBottom && (wHit = _HitTestRectBottomLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTLEFT) )
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break;
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// failed corners, just test the resizing margin within the specified 9-grid hit seg.
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wHit = _HitTestRectLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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}
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break;
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case HTTOP:
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if( fTestCaption )
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wHit = wMiss = HTCAPTION;
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if( fTestTop )
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{
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// first test for a hit in the corner resizing areas, respecting caller's option flags.
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if( (fTestLeft && (wHit = _HitTestRectTopLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTTOP) ||
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(fTestRight && (wHit = _HitTestRectTopRight( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTTOP) )
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break;
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// failed corners, just test the resizing margin within the specified 9-grid hit seg.
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wHit = _HitTestRectTop( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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}
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break;
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case HTRIGHT:
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if( fTestRight )
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{
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// first test for a hit in the corner resizing areas, respecting caller's option flags.
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if( (fTestTop && (wHit = _HitTestRectTopRight( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTRIGHT) ||
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(fTestBottom && (wHit = _HitTestRectBottomRight( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTRIGHT) )
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break;
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// failed corners, just test the resizing margin within the specified 9-grid hit seg.
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wHit = _HitTestRectRight( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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break;
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}
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case HTBOTTOM:
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if( fTestBottom )
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{
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// first test for a hit in the corner resizing areas, respecting caller's option flags.
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if( (fTestLeft && (wHit = _HitTestRectBottomLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTBOTTOM) ||
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(fTestRight && (wHit = _HitTestRectBottomRight( prc, cxRESIZE, cyRESIZE, pt, wMiss )) != HTBOTTOM) )
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break;
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// failed corners, just test the resizing margin within the specified 9-grid hit seg.
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wHit = _HitTestRectBottom( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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}
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break;
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case HTTOPLEFT:
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if( fTestCaption )
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wHit = wMiss = HTCAPTION;
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// first test for a resizing hit in the corner, and failing that, test the
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// resizing margin on either side.
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if( fTestTop && fTestLeft )
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wHit = _HitTestRectTopLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestLeft )
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wHit = _HitTestRectLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestTop )
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wHit = _HitTestRectTop( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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break;
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case HTTOPRIGHT:
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if( fTestCaption )
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wHit = wMiss = HTCAPTION;
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// first test for a resizing hit in the corner, and failing that, test the
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// resizing margin on either side.
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if( fTestTop && fTestRight )
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wHit = _HitTestRectTopRight( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestRight )
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wHit = _HitTestRectRight( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestTop )
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wHit = _HitTestRectTop( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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break;
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case HTBOTTOMLEFT:
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// first test for a resizing hit in the corner, and failing that, test the
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// resizing margin on either side.
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if( fTestBottom && fTestLeft )
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wHit = _HitTestRectBottomLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestLeft )
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wHit = _HitTestRectLeft( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestBottom )
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wHit = _HitTestRectBottom( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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break;
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case HTBOTTOMRIGHT:
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// first test for a resizing hit in the corner, and failing that, test the
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// resizing margin on either side.
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if( fTestBottom && fTestRight )
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wHit = _HitTestRectBottomRight( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestRight )
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wHit = _HitTestRectRight( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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else if( fTestBottom )
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wHit = _HitTestRectBottom( prc, cxRESIZE, cyRESIZE, pt, wMiss );
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break;
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}
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return wHit;
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}
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//---------------------------------------------------------------------------
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WORD HitTestRect(DWORD dwHTFlags, LPCRECT prc, const MARGINS& margins, const POINT& pt )
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{
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WORD wHit = HTNOWHERE;
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if( PtInRect( prc, pt ) )
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{
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wHit = HitTest9Grid( prc, margins, pt );
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if( HTCLIENT != wHit )
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{
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if( TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER) )
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{
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WORD wMiss = HTBORDER;
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wHit = _HitTestResizingRect( dwHTFlags, prc, pt, wHit, wMiss );
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}
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else if( TESTFLAG(dwHTFlags, HTTB_CAPTION|HTTB_FIXEDBORDER) )
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{
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switch( wHit )
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{
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case HTTOP:
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case HTTOPLEFT:
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case HTTOPRIGHT:
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wHit = (WORD)(TESTFLAG(dwHTFlags, HTTB_CAPTION) ? HTCAPTION : HTBORDER);
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break;
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default:
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wHit = HTBORDER;
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}
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}
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} // !HTCLIENT
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} // PtInRect
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return wHit;
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}
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//---------------------------------------------------------------------------
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WORD _HitTestResizingTemplate( DWORD dwHTFlags, HRGN hrgn, const POINT& pt,
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WORD w9GridHit, WORD wMiss )
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{
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WORD wHit = wMiss;
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BOOL fTestLeft = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_LEFT);
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BOOL fTestTop = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_TOP);
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BOOL fTestRight = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_RIGHT);
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BOOL fTestBottom = TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER_BOTTOM);
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BOOL fTestCaption = TESTFLAG( dwHTFlags, HTTB_CAPTION );
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BOOL fInsideRgn;
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switch( w9GridHit )
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{
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case HTLEFT:
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if( !fTestLeft )
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{
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return wMiss;
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}
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break;
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case HTTOP:
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if( fTestCaption )
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wMiss = HTCAPTION;
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if( !fTestTop )
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{
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return wMiss;
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}
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break;
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case HTRIGHT:
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if( !fTestRight )
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{
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return wMiss;
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}
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break;
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case HTBOTTOM:
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if( !fTestBottom )
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{
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return wMiss;
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}
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break;
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case HTTOPLEFT:
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if( fTestCaption )
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wMiss = HTCAPTION;
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if( !fTestTop || !fTestLeft )
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{
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return wMiss;
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}
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break;
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case HTTOPRIGHT:
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if( fTestCaption )
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wMiss = HTCAPTION;
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if( !fTestTop || !fTestRight )
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{
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return wMiss;
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}
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break;
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case HTBOTTOMLEFT:
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if( !fTestBottom || !fTestLeft )
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{
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return wMiss;
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}
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break;
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case HTBOTTOMRIGHT:
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if( !fTestBottom || !fTestRight )
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{
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return wMiss;
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}
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break;
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}
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fInsideRgn = PtInRegion(hrgn, pt.x, pt.y);
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if( fInsideRgn )
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{
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wHit = w9GridHit;
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}
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return wHit;
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}
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//---------------------------------------------------------------------------
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WORD HitTestTemplate(DWORD dwHTFlags, LPCRECT prc, HRGN hrgn, const MARGINS& margins, const POINT& pt )
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{
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WORD wHit = HTNOWHERE;
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if( PtInRect( prc, pt ) )
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{
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wHit = HitTest9Grid( prc, margins, pt );
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if( HTCLIENT != wHit )
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{
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if( TESTFLAG(dwHTFlags, HTTB_RESIZINGBORDER) )
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{
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WORD wMiss = HTBORDER;
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wHit = _HitTestResizingTemplate( dwHTFlags, hrgn, pt, wHit, wMiss );
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}
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else if( TESTFLAG(dwHTFlags, HTTB_CAPTION|HTTB_FIXEDBORDER) )
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{
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switch( wHit )
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{
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case HTTOP:
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case HTTOPLEFT:
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case HTTOPRIGHT:
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wHit = (WORD)(TESTFLAG(dwHTFlags, HTTB_CAPTION) ? HTCAPTION : HTBORDER);
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break;
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default:
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wHit = HTBORDER;
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}
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}
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} // !HTCLIENT
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}
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return wHit;
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}
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// --------------------------------------------------------------------------
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// FillRectClr
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//
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// History: 2000-12-06 lmouton borrowed from comctl32\v6\cutils.c
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//---------------------------------------------------------------------------
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void FillRectClr(HDC hdc, LPRECT prc, COLORREF clr)
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{
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COLORREF clrSave = SetBkColor(hdc, clr);
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ExtTextOut(hdc,0,0,ETO_OPAQUE,prc,NULL,0,NULL);
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SetBkColor(hdc, clrSave);
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}
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//---------------------------------------------------------------------------
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// _DrawEdge
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//
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// Classic values are:
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// clrLight = 192 192 192
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// clrHighlight = 255 255 255
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// clrShadow = 128 128 128
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// clrDkShadow = 0 0 0
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// clrFill = 192 192 192
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//
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// History: 2000-12-06 lmouton borrowed from comctl32\v6\cutils.c, modified colors
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//---------------------------------------------------------------------------
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HRESULT _DrawEdge(HDC hdc, const RECT *pDestRect, UINT uEdge, UINT uFlags,
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COLORREF clrLight, COLORREF clrHighlight, COLORREF clrShadow, COLORREF clrDkShadow, COLORREF clrFill,
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OUT RECT *pContentRect)
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{
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if (hdc == NULL || pDestRect == NULL)
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return E_INVALIDARG;
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HRESULT hr = S_OK;
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RECT rc, rcD;
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UINT bdrType;
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COLORREF clrTL = 0;
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COLORREF clrBR = 0;
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// This is were we would adjust for high DPI if the new "BF_DPISCALE" flag is specified in uFlags.
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int cxBorder = GetSystemMetrics(SM_CXBORDER);
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int cyBorder = GetSystemMetrics(SM_CYBORDER);
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//
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// Enforce monochromicity and flatness
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//
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// if (oemInfo.BitCount == 1)
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// uFlags |= BF_MONO;
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if (uFlags & BF_MONO)
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uFlags |= BF_FLAT;
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CopyRect(&rc, pDestRect);
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//
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// Draw the border segment(s), and calculate the remaining space as we
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// go.
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//
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bdrType = (uEdge & BDR_OUTER);
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if (bdrType)
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{
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DrawBorder:
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//
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// Get colors. Note the symmetry between raised outer, sunken inner and
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// sunken outer, raised inner.
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//
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|
if (uFlags & BF_FLAT)
|
|
{
|
|
if (uFlags & BF_MONO)
|
|
clrBR = (bdrType & BDR_OUTER) ? clrDkShadow : clrHighlight;
|
|
else
|
|
clrBR = (bdrType & BDR_OUTER) ? clrShadow: clrFill;
|
|
|
|
clrTL = clrBR;
|
|
}
|
|
else
|
|
{
|
|
// 5 == HILIGHT
|
|
// 4 == LIGHT
|
|
// 3 == FACE
|
|
// 2 == SHADOW
|
|
// 1 == DKSHADOW
|
|
|
|
switch (bdrType)
|
|
{
|
|
// +2 above surface
|
|
case BDR_RAISEDOUTER: // 5 : 4
|
|
clrTL = ((uFlags & BF_SOFT) ? clrHighlight : clrLight);
|
|
clrBR = clrDkShadow; // 1
|
|
break;
|
|
|
|
// +1 above surface
|
|
case BDR_RAISEDINNER: // 4 : 5
|
|
clrTL = ((uFlags & BF_SOFT) ? clrLight : clrHighlight);
|
|
clrBR = clrShadow; // 2
|
|
break;
|
|
|
|
// -1 below surface
|
|
case BDR_SUNKENOUTER: // 1 : 2
|
|
clrTL = ((uFlags & BF_SOFT) ? clrDkShadow : clrShadow);
|
|
clrBR = clrHighlight; // 5
|
|
break;
|
|
|
|
// -2 below surface
|
|
case BDR_SUNKENINNER: // 2 : 1
|
|
clrTL = ((uFlags & BF_SOFT) ? clrShadow : clrDkShadow);
|
|
clrBR = clrLight; // 4
|
|
break;
|
|
|
|
default:
|
|
hr = E_INVALIDARG;
|
|
}
|
|
}
|
|
|
|
if FAILED(hr)
|
|
{
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Draw the sides of the border. NOTE THAT THE ALGORITHM FAVORS THE
|
|
// BOTTOM AND RIGHT SIDES, since the light source is assumed to be top
|
|
// left. If we ever decide to let the user set the light source to a
|
|
// particular corner, then change this algorithm.
|
|
//
|
|
|
|
// Bottom Right edges
|
|
if (uFlags & (BF_RIGHT | BF_BOTTOM))
|
|
{
|
|
// Right
|
|
if (uFlags & BF_RIGHT)
|
|
{
|
|
rc.right -= cxBorder;
|
|
// PatBlt(hdc, rc.right, rc.top, g_cxBorder, rc.bottom - rc.top, PATCOPY);
|
|
rcD.left = rc.right;
|
|
rcD.right = rc.right + cxBorder;
|
|
rcD.top = rc.top;
|
|
rcD.bottom = rc.bottom;
|
|
|
|
FillRectClr(hdc, &rcD, clrBR);
|
|
}
|
|
|
|
// Bottom
|
|
if (uFlags & BF_BOTTOM)
|
|
{
|
|
rc.bottom -= cyBorder;
|
|
// PatBlt(hdc, rc.left, rc.bottom, rc.right - rc.left, g_cyBorder, PATCOPY);
|
|
rcD.left = rc.left;
|
|
rcD.right = rc.right;
|
|
rcD.top = rc.bottom;
|
|
rcD.bottom = rc.bottom + cyBorder;
|
|
|
|
FillRectClr(hdc, &rcD, clrBR);
|
|
}
|
|
}
|
|
|
|
// Top Left edges
|
|
if (uFlags & (BF_TOP | BF_LEFT))
|
|
{
|
|
// Left
|
|
if (uFlags & BF_LEFT)
|
|
{
|
|
// PatBlt(hdc, rc.left, rc.top, g_cxBorder, rc.bottom - rc.top, PATCOPY);
|
|
rc.left += cxBorder;
|
|
|
|
rcD.left = rc.left - cxBorder;
|
|
rcD.right = rc.left;
|
|
rcD.top = rc.top;
|
|
rcD.bottom = rc.bottom;
|
|
|
|
FillRectClr(hdc, &rcD, clrTL);
|
|
}
|
|
|
|
// Top
|
|
if (uFlags & BF_TOP)
|
|
{
|
|
// PatBlt(hdc, rc.left, rc.top, rc.right - rc.left, g_cyBorder, PATCOPY);
|
|
rc.top += cyBorder;
|
|
|
|
rcD.left = rc.left;
|
|
rcD.right = rc.right;
|
|
rcD.top = rc.top - cyBorder;
|
|
rcD.bottom = rc.top;
|
|
|
|
FillRectClr(hdc, &rcD, clrTL);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
bdrType = (uEdge & BDR_INNER);
|
|
if (bdrType)
|
|
{
|
|
//
|
|
// Strip this so the next time through, bdrType will be 0.
|
|
// Otherwise, we'll loop forever.
|
|
//
|
|
uEdge &= ~BDR_INNER;
|
|
goto DrawBorder;
|
|
}
|
|
|
|
//
|
|
// Fill the middle & clean up if asked
|
|
//
|
|
if (uFlags & BF_MIDDLE)
|
|
FillRectClr(hdc, &rc, (uFlags & BF_MONO) ? clrHighlight : clrFill);
|
|
|
|
if ((uFlags & BF_ADJUST) && (pContentRect != NULL))
|
|
CopyRect(pContentRect, &rc);
|
|
|
|
return hr;
|
|
}
|