/**
* @brief
* Click on a menu item
*/
void AbstractMenu::ClickItem(int nItem)
{
// Get currently selected item
MenuItem *pItem = m_pMenu->GetItems().Get(nItem);
bool bCloseOnly = (m_pSelectedItem != nullptr && m_pSelectedItem == pItem);
// Close currently open item
if (m_pSelectedItem) {
// Close submenu
if (m_pSelectedItem->GetType() == TypeMenu) {
CloseSubmenu();
}
// Close submenu
m_pSelectedItem = nullptr;
}
// Check clicked item
if (pItem) {
// Open new submenu?
if (pItem->GetType() == TypeMenu && !bCloseOnly) {
// Set open item
m_pSelectedItem = pItem;
// Open submenu
OpenSubmenu(m_pSelectedItem, nItem);
} else if (pItem->GetType() == TypeMenuItem) {
// Item clicked
m_pController->OnItemClicked(pItem);
m_pController->SetSelection(-1);
}
}
// Reset selection?
if (nItem == -1) {
SetSelection(-1);
}
// Redraw menu
Redraw();
}
/**
* @brief
* Set currently selected menu item
*/
void AbstractMenu::SetSelection(int nItem)
{
// Has the selection changed?
int nNumOfItems = (m_pMenu ? m_pMenu->GetItems().GetNumOfElements() : 0);
if (m_nSelection != nItem && nItem >= -1 && nItem < nNumOfItems) {
// Get currently selected item
MenuItem *pItem = m_pMenu->GetItems().Get(nItem);
bool bOpenSubmenu = (m_pSelectedItem != nullptr);
// Close currently open item
if (m_pSelectedItem) {
// Close submenu
if (m_pSelectedItem->GetType() == TypeMenu) {
CloseSubmenu();
}
// Close submenu
m_pSelectedItem = nullptr;
}
// Set selection
m_nSelection = nItem;
// Emit signal
SignalItemSelected(m_nSelection);
// Check selected item
if (pItem && bOpenSubmenu) {
// Set new open submenu (or item)
m_pSelectedItem = pItem;
// Open new submenu?
if (pItem->GetType() == TypeMenu) {
// Open submenu
OpenSubmenu(m_pSelectedItem, nItem);
}
}
// Redraw menu
Redraw();
}
}
void AbstractMenu::OnKeyDown(uint32 nKey, uint32 nModifiers)
{
// Check pointer
if (m_pControlMenu) {
// Previous item
if ( m_pControlMenu->GetSelection() > -1 &&
((m_pControlMenu->GetOrientation() == Horizontal && nKey == PLGUIKEY_LEFT) ||
(m_pControlMenu->GetOrientation() == Vertical && nKey == PLGUIKEY_UP)) )
{
// Select previous item
int nSelection = m_pControlMenu->GetSelection() - 1;
if (nSelection < 0) nSelection = m_pControlMenu->m_nItems-1;
// Ignore separators
MenuItem *pItem = (m_pMenu ? m_pMenu->GetItems().Get(nSelection) : nullptr);
if (pItem && pItem->GetType() == TypeSeparator) {
nSelection--;
if (nSelection < 0) nSelection = m_pControlMenu->m_nItems-1;
}
// Update selection
m_pControlMenu->SetSelection(nSelection);
m_pControlMenu->m_nIgnoreMouse = 5;
}
// Next item
if ( m_pControlMenu->GetSelection() > -1 &&
((m_pControlMenu->GetOrientation() == Horizontal && nKey == PLGUIKEY_RIGHT) ||
(m_pControlMenu->GetOrientation() == Vertical && nKey == PLGUIKEY_DOWN)) )
{
// Select next item
int nSelection = m_pControlMenu->GetSelection() + 1;
if (nSelection >= m_pControlMenu->m_nItems) nSelection = 0;
// Ignore separators
MenuItem *pItem = (m_pMenu ? m_pMenu->GetItems().Get(nSelection) : nullptr);
if (pItem && pItem->GetType() == TypeSeparator) {
nSelection++;
if (nSelection >= m_pControlMenu->m_nItems) nSelection = 0;
}
// Update selection
m_pControlMenu->SetSelection(nSelection);
m_pControlMenu->m_nIgnoreMouse = 5;
}
// Select current item
if ((nKey == PLGUIKEY_SPACE || nKey == PLGUIKEY_RETURN) && m_pControlMenu->GetSelection() > -1) {
m_pControlMenu->ClickItem(m_pControlMenu->GetSelection());
}
// Open next popup-menu
if ( !m_pControlMenu->m_pSelectedItem &&
((m_pControlMenu->GetOrientation() == Horizontal && nKey == PLGUIKEY_DOWN) ||
(m_pControlMenu->GetOrientation() == Vertical && nKey == PLGUIKEY_RIGHT)) )
{
// Must be a sub-menu
MenuItem *pItem = (m_pControlMenu->m_pMenu ? m_pControlMenu->m_pMenu->GetItems().Get(m_pControlMenu->GetSelection()) : nullptr);
if (pItem && pItem->GetType() == TypeMenu) {
m_pControlMenu->ClickItem(m_pControlMenu->GetSelection());
}
}
// Close current popup-menu
if (m_pControlMenu->GetOrientation() == Vertical && nKey == PLGUIKEY_LEFT && m_pControlMenu->m_pParentMenu) {
m_pControlMenu = m_pControlMenu->m_pParentMenu;
m_pControlMenu->ClickItem(m_pControlMenu->GetSelection());
}
// Keyboard shortcut
if (nKey >= PLGUIKEY_A && nKey <= PLGUIKEY_Z) {
// Get character
char nChar = static_cast<char>('a' + (nKey - PLGUIKEY_A));
m_pControlMenu->PressShortcut(nChar);
m_pControlMenu->m_nIgnoreMouse = 5;
}
}
// Close entire menu
if (nKey == PLGUIKEY_ESCAPE) {
if (m_pSelectedItem) ClickItem(GetSelection());
else ClickItem(-1);
}
}