101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
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#pragma once
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#include <wtl/atlmisc.h>
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class CDropArrows : public CWindowImpl< CDropArrows >
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{
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public:
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CDropArrows()
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{
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m_bVertical = FALSE;
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m_nSpanLength = 0;
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}
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~CDropArrows()
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{
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}
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DECLARE_WND_CLASS( _T( "DropArrows" ) )
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protected:
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CBrush m_bshArrowBrush;
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CRgn m_rgnArrowRegion;
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BOOL m_bVertical;
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int m_nSpanLength;
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public:
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BOOL Create( HWND hWndParent, int nSpanLength, BOOL bVertical )
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{
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if ( !m_bshArrowBrush.CreateSolidBrush( RGB( 255, 0, 0 ) ) )
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return FALSE;
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m_bVertical = bVertical;
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m_nSpanLength = nSpanLength + 20;
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if ( CWindowImpl< CDropArrows >::Create( hWndParent, (CRect( 0, 0, m_bVertical ? 12 : m_nSpanLength, m_bVertical ? m_nSpanLength : 12 )), NULL, WS_POPUP | WS_DISABLED, WS_EX_TOOLWINDOW ) == NULL )
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return FALSE;
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POINT ptArrow[ 7 ];
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ptArrow[0].x = bVertical ? 8 : 0; ptArrow[0].y = bVertical ? 0 : 9;
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ptArrow[1].x = bVertical ? 8 : 4; ptArrow[1].y = bVertical ? 4 : 9;
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ptArrow[2].x = bVertical ? 11 : 4; ptArrow[2].y = bVertical ? 4 : 12;
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ptArrow[3].x = bVertical ? 6 : 10; ptArrow[3].y = bVertical ? 9 : 6;
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ptArrow[4].x = bVertical ? 1 : 4; ptArrow[4].y = bVertical ? 4 : 0;
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ptArrow[5].x = bVertical ? 4 : 4; ptArrow[5].y = bVertical ? 4 : 4;
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ptArrow[6].x = bVertical ? 4 : 0; ptArrow[6].y = bVertical ? 0 : 4;
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CRgn rgnFirstArrow;
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if ( !rgnFirstArrow.CreatePolygonRgn( ptArrow, 7, ALTERNATE ) )
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return FALSE;
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ptArrow[0].x = bVertical ? 4 : m_nSpanLength; ptArrow[0].y = bVertical ? m_nSpanLength : 4;
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ptArrow[1].x = bVertical ? 4 : m_nSpanLength - 4; ptArrow[1].y = bVertical ? m_nSpanLength - 4 : 4;
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ptArrow[2].x = bVertical ? 0 : m_nSpanLength - 4; ptArrow[2].y = bVertical ? m_nSpanLength - 4 : 0;
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ptArrow[3].x = bVertical ? 6 : m_nSpanLength - 10; ptArrow[3].y = bVertical ? m_nSpanLength - 10 : 6;
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ptArrow[4].x = bVertical ? 12 : m_nSpanLength - 4; ptArrow[4].y = bVertical ? m_nSpanLength - 4 : 12;
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ptArrow[5].x = bVertical ? 8 : m_nSpanLength - 4; ptArrow[5].y = bVertical ? m_nSpanLength - 4 : 9;
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ptArrow[6].x = bVertical ? 8 : m_nSpanLength; ptArrow[6].y = bVertical ? m_nSpanLength : 9;
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CRgn rgnSecondArrow;
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if ( !rgnSecondArrow.CreatePolygonRgn( ptArrow, 7, ALTERNATE ) )
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return FALSE;
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if ( !m_rgnArrowRegion.CreateRectRgn( 0, 0, bVertical ? 12 : nSpanLength, bVertical ? nSpanLength : 12 ) )
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return FALSE;
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m_rgnArrowRegion.CombineRgn( rgnFirstArrow, rgnSecondArrow, RGN_OR );
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SetWindowRgn( m_rgnArrowRegion, FALSE );
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return TRUE;
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}
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BOOL Show( CPoint point )
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{
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return IsWindow() ? SetWindowPos( NULL, m_bVertical ? point.x - 7 : point.x - ( m_nSpanLength / 2 ), m_bVertical ? point.y - ( m_nSpanLength / 2 ) : point.y - 5, 0, 0, SWP_NOZORDER | SWP_NOSIZE | SWP_SHOWWINDOW | SWP_NOACTIVATE ) : FALSE;
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}
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BOOL Hide()
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{
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return IsWindow() ? ShowWindow( SW_HIDE ) : FALSE;
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}
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BEGIN_MSG_MAP_EX(CDropArrows)
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MSG_WM_DESTROY(OnDestroy)
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MSG_WM_ERASEBKGND(OnEraseBkgnd)
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END_MSG_MAP()
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void OnDestroy()
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{
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m_bshArrowBrush.DeleteObject();
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m_rgnArrowRegion.DeleteObject();
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}
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BOOL OnEraseBkgnd( HDC dc )
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{
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CDCHandle dcErase( dc );
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dcErase.FillRect( CRect( 0, 0, m_bVertical ? 12 : m_nSpanLength, m_bVertical ? m_nSpanLength : 12 ), m_bshArrowBrush );
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return TRUE;
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}
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};
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