116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
#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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CRect area(0, 0, m_bVertical ? 12 : m_nSpanLength, m_bVertical ? m_nSpanLength : 12);
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if (CWindowImpl<CDropArrows>::Create(hWndParent, area, nullptr, WS_POPUP | WS_DISABLED, WS_EX_TOOLWINDOW) == nullptr)
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return FALSE;
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POINT ptArrow[7];
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ptArrow[0].x = bVertical ? 8 : 0;
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ptArrow[0].y = bVertical ? 0 : 9;
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ptArrow[1].x = bVertical ? 8 : 4;
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ptArrow[1].y = bVertical ? 4 : 9;
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ptArrow[2].x = bVertical ? 11 : 4;
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ptArrow[2].y = bVertical ? 4 : 12;
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ptArrow[3].x = bVertical ? 6 : 10;
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ptArrow[3].y = bVertical ? 9 : 6;
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ptArrow[4].x = bVertical ? 1 : 4;
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ptArrow[4].y = bVertical ? 4 : 0;
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ptArrow[5].x = bVertical ? 4 : 4;
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ptArrow[5].y = bVertical ? 4 : 4;
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ptArrow[6].x = bVertical ? 4 : 0;
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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;
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ptArrow[0].y = bVertical ? m_nSpanLength : 4;
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ptArrow[1].x = bVertical ? 4 : m_nSpanLength - 4;
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ptArrow[1].y = bVertical ? m_nSpanLength - 4 : 4;
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ptArrow[2].x = bVertical ? 0 : m_nSpanLength - 4;
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ptArrow[2].y = bVertical ? m_nSpanLength - 4 : 0;
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ptArrow[3].x = bVertical ? 6 : m_nSpanLength - 10;
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ptArrow[3].y = bVertical ? m_nSpanLength - 10 : 6;
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ptArrow[4].x = bVertical ? 12 : m_nSpanLength - 4;
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ptArrow[4].y = bVertical ? m_nSpanLength - 4 : 12;
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ptArrow[5].x = bVertical ? 8 : m_nSpanLength - 4;
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ptArrow[5].y = bVertical ? m_nSpanLength - 4 : 9;
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ptArrow[6].x = bVertical ? 8 : m_nSpanLength;
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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(nullptr, 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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