startmenu.cpp

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		if (GetWindowStyle(_hwnd) & WS_CAPTION)	// don't automatically close floating menus
			return 0;

		 // route message to the parent menu and close menus after launching an entry
		if (!SendParent(nmsg, wparam, lparam))
			CloseStartMenu();
		return 1;	// signal that we have received and processed the message

	  case PM_STARTMENU_CLOSED:
		_submenu = 0;
		break;

	  case PM_SELECT_ENTRY:
		SelectButtonIndex(0, wparam!=0);
		break;

#ifdef _LIGHT_STARTMENU
	  case WM_CONTEXTMENU: {
		Point screen_pt(lparam), clnt_pt=screen_pt;
		ScreenToClient(_hwnd, &clnt_pt);

		int id = ButtonHitTest(clnt_pt);

		if (id) {
			StartMenuEntry& sme = _entries[id];

			for(ShellEntrySet::iterator it=sme._entries.begin(); it!=sme._entries.end(); ++it) {
				Entry* entry = *it;

				if (entry) {
					CHECKERROR(entry->do_context_menu(_hwnd, screen_pt, _cm_ifs));	// may close start menu because of focus loss
					///@todo refresh on successfull context menu execution?
					break;	///@todo handle context menu for more than one entry
				}
			}
		}
		break;}
#endif

	  default: def:
		return super::WndProc(nmsg, wparam, lparam);
	}

	return 0;
}


#ifdef _LIGHT_STARTMENU

int StartMenu::ButtonHitTest(POINT pt)
{
	ClientRect clnt(_hwnd);
	const int icon_size = _icon_size;
	RECT rect = {_border_left, _border_top, clnt.right, STARTMENU_LINE_HEIGHT(icon_size)};

	if (pt.x<rect.left || pt.x>rect.right)
		return 0;

	for(SMBtnVector::const_iterator it=_buttons.begin()+_scroll_pos; it!=_buttons.end(); ++it) {
		const SMBtnInfo& info = *it;

		if (rect.top > pt.y)
			break;

		rect.bottom = rect.top + (info._id==-1? STARTMENU_SEP_HEIGHT(icon_size): STARTMENU_LINE_HEIGHT(icon_size));

		if (rect.bottom > _bottom_max)
			break;

		if (pt.y < rect.bottom)	// PtInRect(&rect, pt)
			return info._id;

		rect.top = rect.bottom;
	}

	return 0;
}

void StartMenu::InvalidateSelection()
{
	if (_selected_id <= 0)
		return;

	ClientRect clnt(_hwnd);
	const int icon_size = _icon_size;
	RECT rect = {_border_left, _border_top, clnt.right, STARTMENU_LINE_HEIGHT(icon_size)};

	for(SMBtnVector::const_iterator it=_buttons.begin()+_scroll_pos; it!=_buttons.end(); ++it) {
		const SMBtnInfo& info = *it;

		rect.bottom = rect.top + (info._id==-1? STARTMENU_SEP_HEIGHT(icon_size): STARTMENU_LINE_HEIGHT(icon_size));

		if (info._id == _selected_id) {
			InvalidateRect(_hwnd, &rect, TRUE);
			break;
		}

		rect.top = rect.bottom;
	}
}

const SMBtnInfo* StartMenu::GetButtonInfo(int id) const
{
	for(SMBtnVector::const_iterator it=_buttons.begin(); it!=_buttons.end(); ++it)
		if (it->_id == id)
			return &*it;

	return NULL;
}

bool StartMenu::SelectButton(int id, bool open_sub)
{
	if (id == -1)
		return false;

	if (id == _selected_id)
		return true;

	InvalidateSelection();

	const SMBtnInfo* btn = GetButtonInfo(id);

	if (btn && btn->_enabled) {
		_selected_id = id;

		InvalidateSelection();

		 // automatically open submenus
		if (btn->_hasSubmenu) {
			if (open_sub)
				OpenSubmenu();
		} else
			CloseOtherSubmenus();	// close any open submenu

		return true;
	} else {
		_selected_id = -1;
		return false;
	}
}

bool StartMenu::OpenSubmenu(bool select_first)
{
	if (_selected_id == -1)
		return false;

	InvalidateSelection();

	const SMBtnInfo* btn = GetButtonInfo(_selected_id);

	 // automatically open submenus
	if (btn->_hasSubmenu) {
		//@@ allows destroying of startmenu when processing PM_UPDATE_ICONS -> GPF
		UpdateWindow(_hwnd);	// draw focused button before waiting on submenu creation
		Command(_selected_id, BN_CLICKED);

		if (select_first && _submenu)
			SendMessage(_submenu, PM_SELECT_ENTRY, (WPARAM)false, 0);

		return true;
	} else
		return false;
}


int StartMenu::GetSelectionIndex()
{
	if (_selected_id == -1)
		return -1;

	for(int i=0; i<(int)_buttons.size(); ++i)
		if (_buttons[i]._id == _selected_id)
			return i;

	return -1;
}

bool StartMenu::SelectButtonIndex(int idx, bool open_sub)
{
	if (idx>=0 && idx<(int)_buttons.size())
		return SelectButton(_buttons[idx]._id, open_sub);
	else
		return false;
}

void StartMenu::ProcessKey(int vk)
{
	switch(vk) {
	  case VK_RETURN:
		if (_selected_id)
			Command(_selected_id, BN_CLICKED);
		break;

	  case VK_UP:
		Navigate(-1);
		break;

	  case VK_DOWN:
		Navigate(+1);
		break;

	  case VK_HOME:
		SelectButtonIndex(0, false);
		break;

	  case VK_END:
		SelectButtonIndex(_buttons.size()-1, false);
		break;

	  case VK_LEFT:
		if (_submenu)
			CloseOtherSubmenus();
		else if (!(GetWindowStyle(_hwnd) & WS_CAPTION))	// don't automatically close floating menus
			DestroyWindow(_hwnd);
		break;

	  case VK_RIGHT:
		OpenSubmenu(true);
		break;

	  case VK_ESCAPE:
		CloseStartMenu();
		break;

	  default:
		if (vk>='0' && vk<='Z')
			JumpToNextShortcut(vk);
	}
}

bool StartMenu::Navigate(int step)
{
	int idx = GetSelectionIndex();

	if (idx == -1)
		if (step > 0)
			idx = 0 - step;
		else
			idx = _buttons.size() - step;

	for(;;) {
		idx += step;

		if (_buttons.size()<=1 && (idx<0 || idx>(int)_buttons.size()))
			break;

		if (idx < 0)
			idx += _buttons.size();

		if (idx > (int)_buttons.size())
			idx -= _buttons.size()+1;

		if (SelectButtonIndex(idx, false))
			return true;
	}

	return false;
}

bool StartMenu::JumpToNextShortcut(char c)
{
	int cur_idx = GetSelectionIndex();

	if (cur_idx == -1)
		cur_idx = 0;

	int first_found = 0;
	int found_more = 0;

	SMBtnVector::const_iterator cur_it = _buttons.begin();
	cur_it += cur_idx + 1;

	 // first search down from current item...
	SMBtnVector::const_iterator it = cur_it;
	for(; it!=_buttons.end(); ++it) {
		const SMBtnInfo& btn = *it;

		if (!btn._title.empty() && toupper((TBYTE)btn._title.at(0)) == c) {
			if (!first_found)
				first_found = btn._id;
			else
				++found_more;
		}
	}

	 // ...now search from top to the current item
	it = _buttons.begin();
	for(; it!=_buttons.end() && it!=cur_it; ++it) {
		const SMBtnInfo& btn = *it;

		if (!btn._title.empty() && toupper((TBYTE)btn._title.at(0)) == c) {
			if (!first_found)
				first_found = btn._id;
			else
				++found_more;
		}
	}

	if (first_found) {
		SelectButton(first_found);

		if (!found_more)
			Command(first_found, BN_CLICKED);

		return true;
	} else
		return false;
}

#endif // _LIGHT_STARTMENU


bool StartMenu::GetButtonRect(int id, PRECT prect) const
{
#ifdef _LIGHT_STARTMENU
	ClientRect clnt(_hwnd);
	const int icon_size = _icon_size;
	RECT rect = {_border_left, _border_top, clnt.right, STARTMENU_LINE_HEIGHT(icon_size)};

	for(SMBtnVector::const_iterator it=_buttons.begin()+_scroll_pos; it!=_buttons.end(); ++it) {
		const SMBtnInfo& info = *it;

		rect.bottom = rect.top + (info._id==-1? STARTMENU_SEP_HEIGHT(icon_size): STARTMENU_LINE_HEIGHT(icon_size));

		if (info._id == id) {
			*prect = rect;
			return true;
		}

		rect.top = rect.bottom;
	}

	return false;
#else
	HWND btn = GetDlgItem(_hwnd, id);

	if (btn) {
		GetWindowRect(btn, prect);
		ScreenToClient(_hwnd, prect);

		return true;
	} else
		return false;
#endif
}


void StartMenu::DrawFloatingButton(HDC hdc)
{
	static ResIconEx floatingIcon(IDI_FLOATING, 8, 4);

	ClientRect clnt(_hwnd);

	DrawIconEx(hdc, clnt.right-12, 0, floatingIcon, 8, 4, 0, 0, DI_NORMAL);
}

void StartMenu::GetFloatingButtonRect(LPRECT prect)
{
	GetClientRect(_hwnd, prect);

	prect->right -= 4;
	prect->left = prect->right - 8;
	prect->bottom = 4;
}


void StartMenu::DrawArrows(HDC hdc, int icon_size)
{
	int cx = icon_size / 2;
	int cy = icon_size / 4;

	ResIconEx arrowUpIcon(IDI_ARROW_UP, cx, cy);
	ResIconEx arrowDownIcon(IDI_ARROW_DOWN, cx, cy);

	ClientRect clnt(_hwnd);

	DrawIconEx(hdc, clnt.right/2-cx/2, _floating_btn?3:1, arrowUpIcon, cx, cy, 0, 0, DI_NORMAL);
	DrawIconEx(hdc, clnt.right/2-cx/2, clnt.bottom-cy-1, arrowDownIcon, cx, cy, 0, 0, DI_NORMAL);
}

void StartMenu::GetArrowButtonRects(LPRECT prect_up, LPRECT prect_down, int icon_size)
{
	int cx = icon_size / 2;
	int cy = icon_size / 4;

	GetClientRect(_hwnd, prect_up);
	*prect_down = *prect_up;

//	prect_up->left = prect_up->right/2 - cx/2;
//	prect_up->right = prect_up->left + cy;
	prect_up->right -= cx;
	prect_up->top = _floating_btn? cy-1: 1;
	prect_up->bottom = prect_up->top + cy;

//	prect_down->left = prect_down->right/2 - cx/2;
//	prect_down->right = prect_down->left + cy;
	prect_down->right -= cx;
	prect_down->top = prect_down->bottom - cy - 1;
}


void StartMenu::Paint(PaintCanvas& canvas)
{
	if (_floating_btn)
		DrawFloatingButton(canvas);

#ifdef _LIGHT_STARTMENU
	if (_arrow_btns)
		DrawArrows(canvas, _icon_size);

	ClientRect clnt(_hwnd);
	const int icon_size = _icon_size;
	RECT rect = {_border_left, _border_top, clnt.right, STARTMENU_LINE_HEIGHT(icon_size)};

	int sep_width = rect.right-rect.left - 4;

	FontSelection font(canvas, GetStockFont(DEFAULT_GUI_FONT));
	BkMode bk_mode(canvas, TRANSPARENT);

	for(SMBtnVector::const_iterator it=_buttons.begin()+_scroll_pos; it!=_buttons.end(); ++it) {
		const SMBtnInfo& btn = *it;

		if (rect.top > canvas.rcPaint.bottom)
			break;

		if (btn._id == -1) {	// a separator?
			rect.bottom = rect.top + STARTMENU_SEP_HEIGHT(icon_size);

			if (rect.bottom > _bottom_max)
				break;

			BrushSelection brush_sel(canvas, GetSysColorBrush(COLOR_BTNSHADOW));
			PatBlt(canvas, rect.left+2, rect.top+STARTMENU_SEP_HEIGHT(icon_size)/2-1, sep_width, 1, PATCOPY);

			SelectBrush(canvas, GetSysColorBrush(COLOR_BTNHIGHLIGHT));
			PatBlt(canvas, rect.left+2, rect.top+STARTMENU_SEP_HEIGHT(icon_size)/2, sep_width, 1, PATCOPY);
		} else {
			rect.bottom = rect.top + STARTMENU_LINE_HEIGHT(icon_size);

			if (rect.bottom > _bottom_max)
				break;

			if (rect.top >= canvas.rcPaint.top)
				DrawStartMenuButton(canvas, rect, btn._title, btn, btn._id==_selected_id, false, _icon_size);
		}

		rect.top = rect.bottom;
	}
#endif
}

#ifdef _LAZY_ICONEXTRACT
void StartMenu::UpdateIcons(/*int idx*/)
{
	UpdateWindow(_hwnd);

#ifdef _SINGLE_ICONEXTRACT

	//if (idx >= 0)
	int idx = _scroll_pos;

	for(; idx<(int)_buttons.size(); ++idx) {
		SMBtnInfo& btn = _buttons[idx];

		if (btn._icon_id==ICID_UNKNOWN && btn._id>0) {
			StartMenuEntry& sme = _entries[btn._id];