VC++实现工具栏上添加平面组合框控件(4)

时间:2009-12-30 15:42来源:未知作者:admin 点击: 次

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　// If mouse leaves, show flat.
　if (!rcItem.PtInRect(pt)) {
　　KillTimer (1);
　　if (bPainted == true) {
　　　DrawCombo(FC_DRAWNORMAL, ::GetSysColor(COLOR_BTNFACE),::GetSysColor(COLOR_BTNFACE));
　　　bPainted = false;
　　}
　　return;
　}
　// On mouse over, show raised.
　else {
　　if (bPainted == true)
　　　return;
　　else {
　　　bPainted = true;
　　　DrawCombo(FC_DRAWRAISED, ::GetSysColor(COLOR_BTNSHADOW),::GetSysColor(COLOR_BTNHIGHLIGHT));
　　}
　}
　CComboBox::OnTimer(nIDEvent);
}

void CFlatComboBox::OnPaint()
{
　Default();
　DrawCombo(FC_DRAWNORMAL, ::GetSysColor(COLOR_BTNFACE),::GetSysColor(COLOR_BTNFACE));
}

void CFlatComboBox::DrawCombo(DWORD dwStyle, COLORREF clrTopLeft, COLORREF clrBottomRight)
{
　CRect rcItem;
　GetClientRect(&rcItem);
　CDC* pDC = GetDC();
　// Cover up dark 3D shadow.
　pDC->Draw3dRect(rcItem, clrTopLeft, clrBottomRight);
　rcItem.DeflateRect(1,1);
　if (!IsWindowEnabled()) {
　　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT),::GetSysColor(COLOR_BTNHIGHLIGHT));
　}
　else {
　　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE),::GetSysColor(COLOR_BTNFACE));
　}
　// Cover up dark 3D shadow on drop arrow.
　rcItem.DeflateRect(1,1);
　rcItem.left = rcItem.right-Offset();
　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE),::GetSysColor(COLOR_BTNFACE));
　// Cover up normal 3D shadow on drop arrow.
　rcItem.DeflateRect(1,1);
　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNFACE),::GetSysColor(COLOR_BTNFACE));
　if (!IsWindowEnabled()) {
　　return;
　}
　switch (dwStyle)
　{
　　case FC_DRAWNORMAL:
　　　rcItem.top -= 1;
　　　rcItem.bottom += 1;
　　　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT),::GetSysColor(COLOR_BTNHIGHLIGHT));
　　　rcItem.left -= 1;
　　　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT),::GetSysColor(COLOR_BTNHIGHLIGHT));
　　　break;
　　case FC_DRAWRAISED:
　　　rcItem.top -= 1;
　　　rcItem.bottom += 1;
　　　pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT),::GetSysColor(COLOR_BTNSHADOW));
　　　break;