HRESULT CMenuToolbarBase::ChangeHotItem(CMenuToolbarBase * toolbar, INT item, DWORD dwFlags)
{
// Ignore the change if it already matches the stored info
if (m_hotBar == toolbar && m_hotItem == item)
return S_FALSE;
// Prevent a change of hot item if the change was triggered by the mouse,
// and mouse tracking is disabled.
if (m_disableMouseTrack && dwFlags & HICF_MOUSE)
{
TRACE("Hot item change prevented by DisableMouseTrack\n");
return S_OK;
}
// Notify the toolbar if the hot-tracking left this toolbar
if (m_hotBar == this && toolbar != this)
{
SetHotItem(-1);
}
TRACE("Hot item changed from %p %p, to %p %p\n", m_hotBar, m_hotItem, toolbar, item);
m_hotBar = toolbar;
m_hotItem = item;
if (m_hotBar == this)
{
if (m_isTrackingPopup && !(m_initFlags & SMINIT_VERTICAL))
{
// If the menubar has an open submenu, switch to the new item's submenu immediately
PopupItem(m_hotItem, FALSE);
}
else if (dwFlags & HICF_MOUSE)
{
// Vertical menus show/hide the submenu after a delay,
// but only with the mouse.
if (m_initFlags & SMINIT_VERTICAL)
{
DWORD elapsed = 0;
SystemParametersInfo(SPI_GETMENUSHOWDELAY, 0, &elapsed, 0);
SetTimer(TIMERID_HOTTRACK, elapsed);
m_timerEnabled = TRUE;
TRACE("SetTimer called with m_hotItem=%d\n", m_hotItem);
}
}
else
{
TBBUTTONINFO info;
info.cbSize = sizeof(info);
info.dwMask = 0;
int index = GetButtonInfo(item, &info);
SetHotItem(index);
}
}
InvalidateDraw();
return S_OK;
}
int CUI::DoPickerLogic(const void *pID, const CUIRect *pRect, float *pX, float *pY)
{
int Inside = MouseInside(pRect);
if(ActiveItem() == pID)
{
if(!MouseButton(0))
SetActiveItem(0);
}
else if(HotItem() == pID)
{
if(MouseButton(0))
SetActiveItem(pID);
}
else if(Inside)
SetHotItem(pID);
if(ActiveItem() != pID || !Inside)
return 0;
if(pX)
*pX = (m_MouseX - pRect->x) / Scale();
if(pY)
*pY = (m_MouseY - pRect->y) / Scale();
return 1;
}
int CUI::DoPickerLogic(const void *pID, const CUIRect *pRect, float *pX, float *pY)
{
int Inside = MouseInside(pRect);
if(CheckActiveItem(pID))
{
if(!MouseButton(0))
SetActiveItem(0);
}
else if(HotItem() == pID)
{
if(MouseButton(0))
SetActiveItem(pID);
}
else if(Inside)
SetHotItem(pID);
if(!CheckActiveItem(pID))
return 0;
if(pX)
*pX = clamp(m_MouseX - pRect->x, 0.0f, pRect->w) / Scale();
if(pY)
*pY = clamp(m_MouseY - pRect->y, 0.0f, pRect->h) / Scale();
return 1;
}
int CUI::DoButtonLogic(const void *pID, const char *pText, int Checked, const CUIRect *pRect)
{
// logic
int ReturnValue = 0;
int Inside = MouseInside(pRect);
static int ButtonUsed = 0;
if(ActiveItem() == pID)
{
if(!MouseButton(ButtonUsed))
{
if(Inside && Checked >= 0)
ReturnValue = 1+ButtonUsed;
SetActiveItem(0);
}
}
else if(HotItem() == pID)
{
for(int i = 0; i < 3; ++i)
{
if(MouseButton(i))
{
SetActiveItem(pID);
ButtonUsed = i;
}
}
}
if(Inside)
SetHotItem(pID);
return ReturnValue;
}
void DLlist::OnMouseLeave()
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
SetHotItem(-1);
Update(m_oldHotItem);
m_oldHotItem=-1;
m_hotItem=-1;
CListCtrl::OnMouseLeave();
}
