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Diffstat (limited to 'src/plugins/platforms/windows/qwindowsmenu.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsmenu.cpp | 962 |
1 files changed, 962 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsmenu.cpp b/src/plugins/platforms/windows/qwindowsmenu.cpp new file mode 100644 index 0000000000..4e1997c4f8 --- /dev/null +++ b/src/plugins/platforms/windows/qwindowsmenu.cpp @@ -0,0 +1,962 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwindowsmenu.h" +#include "qwindowscontext.h" +#include "qwindowswindow.h" + +#include <QtGui/qwindow.h> +#include <QtCore/qdebug.h> +#include <QtCore/qvariant.h> +#include <QtCore/qmetaobject.h> +#include <QtCore/qpointer.h> + +#include <algorithm> + +QT_BEGIN_NAMESPACE + +/*! + \class QWindowsMenuBar + \brief Windows native menu bar + + \list + \li \l{https://msdn.microsoft.com/de-de/library/windows/desktop/ms647553(v=vs.85).aspx#_win32_Menu_Creation_Functions}, + \e{About Menus} + \endlist + + \note The destruction order of the QWindowsMenu/Item/Bar instances is + arbitrary depending on whether the application is Qt Quick or + Qt Widgets, either the containers or the items might be deleted first. + + \internal + \ingroup qt-lighthouse-win +*/ + +static uint nextId = 1; + +// Find a QPlatformMenu[Item]* in a vector of QWindowsMenu[Item], where +// QVector::indexOf() cannot be used since it wants a QWindowsMenu[Item]* +template <class Derived, class Needle> +static int indexOf(const QVector<Derived *> &v, const Needle *needle) +{ + for (int i = 0, size = v.size(); i < size; ++i) { + if (v.at(i) == needle) + return i; + } + return -1; +} + +// Helper for inserting a QPlatformMenu[Item]* into a vector of QWindowsMenu[Item]. +template <class Derived, class Base> +static int insertBefore(QVector<Derived *> *v, Base *newItemIn, const Base *before = nullptr) +{ + int index = before ? indexOf(*v, before) : -1; + if (index != -1) { + v->insert(index, static_cast<Derived *>(newItemIn)); + } else { + index = v->size(); + v->append(static_cast<Derived *>(newItemIn)); + } + return index; +} + +static inline const wchar_t *qStringToWChar(const QString &s) +{ + return reinterpret_cast<const wchar_t *>(s.utf16()); +} + +// Traverse menu and return the item for which predicate +// "bool Function(QWindowsMenuItem *)" returns true +template <class Predicate> +static QWindowsMenuItem *traverseMenuItems(const QWindowsMenu *menu, Predicate p) +{ + const QWindowsMenu::MenuItems &items = menu->menuItems(); + for (QWindowsMenuItem *item : items) { + if (p(item)) + return item; + if (item->subMenu()) { + if (QWindowsMenuItem *subMenuItem = traverseMenuItems(item->subMenu(), p)) + return subMenuItem; + } + } + return nullptr; +} + +// Traverse menu bar return the item for which predicate +// "bool Function(QWindowsMenuItem *)" returns true +template <class Predicate> +static QWindowsMenuItem *traverseMenuItems(const QWindowsMenuBar *menuBar, Predicate p) +{ + const QWindowsMenuBar::Menus &menus = menuBar->menus(); + for (QWindowsMenu *menu : menus) { + if (QWindowsMenuItem *item = traverseMenuItems(menu, p)) + return item; + } + return nullptr; +} + +template <class Menu /* Menu[Bar] */> +static QWindowsMenuItem *findMenuItemById(const Menu *menu, uint id) +{ + return traverseMenuItems(menu, [id] (const QWindowsMenuItem *i) { return i->id() == id; }); +} + +// Traverse menu and return the menu for which predicate +// "bool Function(QWindowsMenu *)" returns true +template <class Predicate> +static QWindowsMenu *traverseMenus(const QWindowsMenu *menu, Predicate p) +{ + const QWindowsMenu::MenuItems &items = menu->menuItems(); + for (QWindowsMenuItem *item : items) { + if (QWindowsMenu *subMenu = item->subMenu()) { + if (p(subMenu)) + return subMenu; + if (QWindowsMenu *menu = traverseMenus(subMenu, p)) + return menu; + } + } + return nullptr; +} + +// Traverse menu bar return the item for which +// function "bool Function(QWindowsMenu *)" returns true +template <class Predicate> +static QWindowsMenu *traverseMenus(const QWindowsMenuBar *menuBar, Predicate p) +{ + const QWindowsMenuBar::Menus &menus = menuBar->menus(); + for (QWindowsMenu *menu : menus) { + if (p(menu)) + return menu; + if (QWindowsMenu *subMenu = traverseMenus(menu, p)) + return subMenu; + } + return nullptr; +} + +template <class Menu /* Menu[Bar] */> +static QWindowsMenu *findMenuByHandle(const Menu *menu, HMENU hMenu) +{ + return traverseMenus(menu, [hMenu] (const QWindowsMenu *i) { return i->menuHandle() == hMenu; }); +} + +template <class MenuType> +static int findNextVisibleEntry(const QVector<MenuType *> &entries, int pos) +{ + for (int i = pos, size = entries.size(); i < size; ++i) { + if (entries.at(i)->isVisible()) + return i; + } + return -1; +} + +static inline void menuItemInfoInit(MENUITEMINFO &menuItemInfo) +{ + memset(&menuItemInfo, 0, sizeof(MENUITEMINFO)); + menuItemInfo.cbSize = sizeof(MENUITEMINFO); +} + +static inline void menuItemInfoSetText(MENUITEMINFO &menuItemInfo, const QString &text) +{ + menuItemInfoInit(menuItemInfo); + menuItemInfo.fMask = MIIM_STRING; + menuItemInfo.dwTypeData = const_cast<wchar_t *>(qStringToWChar(text)); + menuItemInfo.cch = UINT(text.size()); +} + +static UINT menuItemState(HMENU hMenu, UINT uItem, BOOL fByPosition) +{ + MENUITEMINFO menuItemInfo; + menuItemInfoInit(menuItemInfo); + menuItemInfo.fMask = MIIM_STATE; + return GetMenuItemInfo(hMenu, uItem, fByPosition, &menuItemInfo) == TRUE ? menuItemInfo.fState : 0; +} + +static void menuItemSetState(HMENU hMenu, UINT uItem, BOOL fByPosition, UINT flags) +{ + MENUITEMINFO menuItemInfo; + menuItemInfoInit(menuItemInfo); + menuItemInfo.fMask = MIIM_STATE; + menuItemInfo.fState = flags; + SetMenuItemInfo(hMenu, uItem, fByPosition, &menuItemInfo); +} + +static void menuItemSetChangeState(HMENU hMenu, UINT uItem, BOOL fByPosition, + bool value, UINT trueState, UINT falseState) +{ + const UINT oldState = menuItemState(hMenu, uItem, fByPosition); + UINT newState = oldState; + if (value) { + newState |= trueState; + newState &= ~falseState; + } else { + newState &= ~trueState; + newState |= falseState; + } + if (oldState != newState) + menuItemSetState(hMenu, uItem, fByPosition, newState); +} + +// ------------ QWindowsMenuItem +QWindowsMenuItem::QWindowsMenuItem(QWindowsMenu *parentMenu) + : m_parentMenu(parentMenu) + , m_id(0) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << static_cast<const void *>(this) + << "parentMenu=" << parentMenu; +} + +QWindowsMenuItem::~QWindowsMenuItem() +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << static_cast<const void *>(this); + removeFromMenu(); + freeBitmap(); +} + +void QWindowsMenuItem::freeBitmap() +{ + if (m_hbitmap) { + DeleteObject(m_hbitmap); + m_hbitmap = nullptr; + } +} + +void QWindowsMenuItem::setIcon(const QIcon &icon) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << icon << ')' << this; + if (m_icon.cacheKey() == icon.cacheKey()) + return; + m_icon = icon; + if (m_parentMenu != nullptr) + updateBitmap(); +} + +Q_GUI_EXPORT HBITMAP qt_pixmapToWinHBITMAP(const QPixmap &p, int hbitmapFormat = 0); + +void QWindowsMenuItem::updateBitmap() +{ + freeBitmap(); + if (!m_icon.isNull()) { + const int size = m_iconSize ? m_iconSize : GetSystemMetrics(SM_CYMENUCHECK); + m_hbitmap = qt_pixmapToWinHBITMAP(m_icon.pixmap(QSize(size, size)), 1); + } + MENUITEMINFO itemInfo; + menuItemInfoInit(itemInfo); + itemInfo.fMask = MIIM_BITMAP; + itemInfo.hbmpItem = m_hbitmap; + SetMenuItemInfo(parentMenuHandle(), m_id, FALSE, &itemInfo); +} + +void QWindowsMenuItem::setText(const QString &text) +{ + qCDebug(lcQpaMenus).nospace().noquote() + << __FUNCTION__ << "(\"" << text << "\") " << this; + if (m_text == text) + return; + m_text = text; + if (m_parentMenu != nullptr) + updateText(); +} + +void QWindowsMenuItem::updateText() +{ + MENUITEMINFO menuItemInfo; + const QString &text = nativeText(); + menuItemInfoSetText(menuItemInfo, text); + SetMenuItemInfo(parentMenuHandle(), m_id, FALSE, &menuItemInfo); +} + +void QWindowsMenuItem::setMenu(QPlatformMenu *menuIn) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << menuIn << ')' << this; + if (menuIn == m_subMenu) + return; + const uint oldId = m_id; + if (menuIn != nullptr) { // Set submenu + m_subMenu = static_cast<QWindowsMenu *>(menuIn); + m_subMenu->setAsItemSubMenu(this); + m_id = m_subMenu->id(); + if (m_parentMenu != nullptr) { + ModifyMenu(m_parentMenu->menuHandle(), oldId, MF_BYCOMMAND | MF_POPUP, + m_id, qStringToWChar(m_text)); + } + return; + } + // Clear submenu + m_subMenu = nullptr; + if (m_parentMenu != nullptr) { + m_id = nextId++; + ModifyMenu(m_parentMenu->menuHandle(), oldId, MF_BYCOMMAND, + m_id, qStringToWChar(m_text)); + } else { + m_id = 0; + } +} + +void QWindowsMenuItem::setVisible(bool isVisible) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << isVisible << ')' << this; + if (m_visible == isVisible) + return; + m_visible = isVisible; + if (m_parentMenu == nullptr) + return; + // Windows menu items do not implement settable visibility, we need to work + // around by removing the item from the menu. It will be kept in the list. + if (isVisible) + insertIntoMenuHelper(m_parentMenu, false, m_parentMenu->menuItems().indexOf(this)); + else + RemoveMenu(parentMenuHandle(), m_id, MF_BYCOMMAND); +} + +void QWindowsMenuItem::setIsSeparator(bool isSeparator) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << isSeparator << ')' << this; + if (m_separator == isSeparator) + return; + m_separator = isSeparator; +} + +void QWindowsMenuItem::setCheckable(bool checkable) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << checkable << ')' << this; + if (m_checkable == checkable) + return; + m_checkable = checkable; + if (m_parentMenu == nullptr) + return; + UINT state = menuItemState(parentMenuHandle(), m_id, FALSE); + if (m_checkable) + state |= m_checked ? MF_CHECKED : MF_UNCHECKED; + else + state &= ~(MF_CHECKED | MF_UNCHECKED); + menuItemSetState(parentMenuHandle(), m_id, FALSE, state); +} + +void QWindowsMenuItem::setChecked(bool isChecked) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << isChecked << ')' << this; + if (m_checked == isChecked) + return; + m_checked = isChecked; + // Convenience: Allow to set checkable by calling setChecked(true) for + // Quick Controls 1 + if (isChecked) + m_checkable = true; + if (m_parentMenu == nullptr || !m_checkable) + return; + menuItemSetChangeState(parentMenuHandle(), m_id, FALSE, m_checked, MF_CHECKED, MF_UNCHECKED); +} + +void QWindowsMenuItem::setShortcut(const QKeySequence &shortcut) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << shortcut << ')' << this; + if (m_shortcut == shortcut) + return; + m_shortcut = shortcut; + if (m_parentMenu != nullptr) + updateText(); +} + +void QWindowsMenuItem::setEnabled(bool enabled) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << enabled << ')' << this; + if (m_enabled == enabled) + return; + m_enabled = enabled; + if (m_parentMenu != nullptr) + menuItemSetChangeState(parentMenuHandle(), m_id, FALSE, m_enabled, MF_ENABLED, MF_GRAYED); +} + +void QWindowsMenuItem::setIconSize(int size) +{ + if (m_iconSize == size) + return; + m_iconSize = size; + if (m_parentMenu != nullptr) + updateBitmap(); +} + +HMENU QWindowsMenuItem::parentMenuHandle() const +{ + return m_parentMenu ? m_parentMenu->menuHandle() : nullptr; +} + +UINT QWindowsMenuItem::state() const +{ + if (m_separator) + return MF_SEPARATOR; + UINT result = MF_STRING | (m_enabled ? MF_ENABLED : MF_GRAYED); + if (m_subMenu != nullptr) + result |= MF_POPUP; + if (m_checkable) + result |= m_checked ? MF_CHECKED : MF_UNCHECKED; + if (QGuiApplication::layoutDirection() == Qt::RightToLeft) + result |= MFT_RIGHTORDER; + return result; +} + +QString QWindowsMenuItem::nativeText() const +{ + QString result = m_text; + if (!m_shortcut.isEmpty()) { + result += QLatin1Char('\t'); + result += m_shortcut.toString(QKeySequence::NativeText); + } + return result; +} + +void QWindowsMenuItem::insertIntoMenu(QWindowsMenu *menu, bool append, int index) +{ + if (m_id == 0 && m_subMenu == nullptr) + m_id = nextId++; + insertIntoMenuHelper(menu, append, index); + m_parentMenu = menu; +} + +void QWindowsMenuItem::insertIntoMenuHelper(QWindowsMenu *menu, bool append, int index) +{ + const QString &text = nativeText(); + + UINT_PTR idBefore = 0; + if (!append) { + // Skip over self (either newly inserted or when called from setVisible() + const int nextIndex = findNextVisibleEntry(menu->menuItems(), index + 1); + if (nextIndex != -1) + idBefore = menu->menuItems().at(nextIndex)->id(); + } + + if (idBefore) + InsertMenu(menu->menuHandle(), idBefore, state(), m_id, qStringToWChar(text)); + else + AppendMenu(menu->menuHandle(), state(), m_id, qStringToWChar(text)); + + updateBitmap(); +} + +bool QWindowsMenuItem::removeFromMenu() +{ + if (QWindowsMenu *parentMenu = m_parentMenu) { + m_parentMenu = nullptr; + RemoveMenu(parentMenu->menuHandle(), m_id, MF_BYCOMMAND); + parentMenu->notifyRemoved(this); + return true; + } + return false; +} + +// ------------ QWindowsMenu + +QWindowsMenu::QWindowsMenu() : QWindowsMenu(nullptr, CreateMenu()) +{ +} + +QWindowsMenu::QWindowsMenu(QWindowsMenu *parentMenu, HMENU menu) + : m_parentMenu(parentMenu) + , m_hMenu(menu) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << static_cast<const void *>(this) + << "parentMenu=" << parentMenu << "HMENU=" << m_hMenu; +} + +QWindowsMenu::~QWindowsMenu() +{ + qCDebug(lcQpaMenus).noquote().nospace() << __FUNCTION__ + << " \"" <<m_text << "\", " << static_cast<const void *>(this); + for (int i = m_menuItems.size() - 1; i>= 0; --i) + m_menuItems.at(i)->removeFromMenu(); + removeFromParent(); + DestroyMenu(m_hMenu); +} + +void QWindowsMenu::insertMenuItem(QPlatformMenuItem *menuItemIn, QPlatformMenuItem *before) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << menuItemIn << ", before=" << before << ')' << this; + QWindowsMenuItem *menuItem = static_cast<QWindowsMenuItem *>(menuItemIn); + const int index = insertBefore(&m_menuItems, menuItemIn, before); + const bool append = index == m_menuItems.size() - 1; + menuItem->insertIntoMenu(this, append, index); +} + +void QWindowsMenu::removeMenuItem(QPlatformMenuItem *menuItemIn) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << menuItemIn << ')' << this; + static_cast<QWindowsMenuItem *>(menuItemIn)->removeFromMenu(); +} + +void QWindowsMenu::setText(const QString &text) +{ + qCDebug(lcQpaMenus).nospace().noquote() + << __FUNCTION__ << "(\"" << text << "\") " << this; + if (m_text == text) + return; + m_text = text; + if (!m_visible) + return; + const HMENU ph = parentHandle(); + if (ph == nullptr) + return; + MENUITEMINFO menuItemInfo; + menuItemInfoSetText(menuItemInfo, m_text); + SetMenuItemInfo(ph, id(), FALSE, &menuItemInfo); +} + +void QWindowsMenu::setIcon(const QIcon &icon) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << icon << ')' << this; + m_icon = icon; +} + +void QWindowsMenu::setEnabled(bool enabled) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << enabled << ')' << this; + if (m_enabled == enabled) + return; + m_enabled = enabled; + if (!m_visible) + return; + if (const HMENU ph = parentHandle()) + menuItemSetChangeState(ph, id(), FALSE, m_enabled, MF_ENABLED, MF_GRAYED); +} + +QWindowsMenuItem *QWindowsMenu::itemForSubMenu(const QWindowsMenu *subMenu) const +{ + const auto it = std::find_if(m_menuItems.cbegin(), m_menuItems.cend(), + [subMenu] (const QWindowsMenuItem *i) { return i->subMenu() == subMenu; }); + return it != m_menuItems.cend() ? *it : nullptr; +} + +void QWindowsMenu::insertIntoMenuBar(QWindowsMenuBar *bar, bool append, int index) +{ + UINT_PTR idBefore = 0; + if (!append) { + // Skip over self (either newly inserted or when called from setVisible() + const int nextIndex = findNextVisibleEntry(bar->menus(), index + 1); + if (nextIndex != -1) + idBefore = bar->menus().at(nextIndex)->id(); + } + m_parentMenuBar = bar; + m_parentMenu = nullptr; + if (idBefore) + InsertMenu(bar->menuBarHandle(), idBefore, MF_POPUP | MF_BYCOMMAND, id(), qStringToWChar(m_text)); + else + AppendMenu(bar->menuBarHandle(), MF_POPUP, id(), qStringToWChar(m_text)); +} + +bool QWindowsMenu::removeFromParent() +{ + if (QWindowsMenuBar *bar = m_parentMenuBar) { + m_parentMenuBar = nullptr; + bar->notifyRemoved(this); + return RemoveMenu(bar->menuBarHandle(), id(), MF_BYCOMMAND) == TRUE; + } + if (QWindowsMenu *menu = m_parentMenu) { + m_parentMenu = nullptr; + QWindowsMenuItem *item = menu->itemForSubMenu(this); + if (item) + item->setMenu(nullptr); + return item != nullptr; + } + return false; +} + +void QWindowsMenu::setVisible(bool visible) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << visible << ')' << this; + if (m_visible == visible) + return; + m_visible = visible; + const HMENU ph = parentHandle(); + if (ph == nullptr) + return; + // Windows menus do not implement settable visibility, we need to work + // around by removing the menu from the parent. It will be kept in the list. + if (visible) { + if (m_parentMenuBar) + insertIntoMenuBar(m_parentMenuBar, false, m_parentMenuBar->menus().indexOf(this)); + } else { + RemoveMenu(ph, id(), MF_BYCOMMAND); + } + if (m_parentMenuBar) + m_parentMenuBar->redraw(); +} + +QPlatformMenuItem *QWindowsMenu::menuItemAt(int position) const +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << position; + return position >= 0 && position < m_menuItems.size() + ? m_menuItems.at(position) : nullptr; +} + +QPlatformMenuItem *QWindowsMenu::menuItemForTag(quintptr tag) const +{ + return traverseMenuItems(this, [tag] (const QPlatformMenuItem *i) { return i->tag() == tag; }); +} + +QPlatformMenuItem *QWindowsMenu::createMenuItem() const +{ + QPlatformMenuItem *result = new QWindowsMenuItem; + qCDebug(lcQpaMenus) << __FUNCTION__ << this << "returns" << result; + return result; +} + +QPlatformMenu *QWindowsMenu::createSubMenu() const +{ + QPlatformMenu *result = new QWindowsMenu; + qCDebug(lcQpaMenus) << __FUNCTION__ << this << "returns" << result; + return result; +} + +void QWindowsMenu::setAsItemSubMenu(QWindowsMenuItem *item) +{ + m_parentMenu = item->parentMenu(); +} + +HMENU QWindowsMenu::parentMenuHandle() const +{ + return m_parentMenu ? m_parentMenu->menuHandle() : nullptr; +} + +HMENU QWindowsMenu::parentMenuBarHandle() const +{ + return m_parentMenuBar ? m_parentMenuBar->menuBarHandle() : nullptr; +} + +HMENU QWindowsMenu::parentHandle() const +{ + if (m_parentMenuBar) + return m_parentMenuBar->menuBarHandle(); + if (m_parentMenu) + return m_parentMenu->menuHandle(); + return nullptr; +} + +// --------------- QWindowsPopupMenu + +static QPointer<QWindowsPopupMenu> lastShownPopupMenu; + +QWindowsPopupMenu::QWindowsPopupMenu() : QWindowsMenu(nullptr, CreatePopupMenu()) +{ +} + +void QWindowsPopupMenu::showPopup(const QWindow *parentWindow, const QRect &targetRect, + const QPlatformMenuItem *item) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '>' << this << parentWindow << targetRect << item; + const QWindowsBaseWindow *window = static_cast<const QWindowsBaseWindow *>(parentWindow->handle()); + const QPoint globalPos = window->mapToGlobal(targetRect.topLeft()); + trackPopupMenu(window->handle(), globalPos.x(), globalPos.y()); +} + +bool QWindowsPopupMenu::trackPopupMenu(HWND windowHandle, int x, int y) +{ + lastShownPopupMenu = this; + return TrackPopupMenu(menuHandle(), + QGuiApplication::layoutDirection() == Qt::RightToLeft ? UINT(TPM_RIGHTALIGN) : UINT(0), + x, y, 0, windowHandle, nullptr) == TRUE; +} + +bool QWindowsPopupMenu::notifyTriggered(uint id) +{ + QPlatformMenuItem *result = lastShownPopupMenu.isNull() + ? nullptr + : findMenuItemById(lastShownPopupMenu.data(), id); + if (result != nullptr) { + qCDebug(lcQpaMenus) << __FUNCTION__ << "id=" << id; + emit result->activated(); + } + lastShownPopupMenu = nullptr; + return result != nullptr; +} + +bool QWindowsPopupMenu::notifyAboutToShow(HMENU hmenu) +{ + if (lastShownPopupMenu.isNull()) + return false; + if (lastShownPopupMenu->menuHandle() == hmenu) { + emit lastShownPopupMenu->aboutToShow(); + return true; + } + if (QWindowsMenu *menu = findMenuByHandle(lastShownPopupMenu.data(), hmenu)) { + emit menu->aboutToShow(); + return true; + } + return false; +} + +// --------------- QWindowsMenuBar + +QWindowsMenuBar::QWindowsMenuBar() : m_hMenuBar(CreateMenu()) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << static_cast<const void *>(this); +} + +QWindowsMenuBar::~QWindowsMenuBar() +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << static_cast<const void *>(this); + for (int m = m_menus.size() - 1; m >= 0; --m) + m_menus.at(m)->removeFromParent(); + removeFromWindow(); + DestroyMenu(m_hMenuBar); +} + +void QWindowsMenuBar::insertMenu(QPlatformMenu *menuIn, QPlatformMenu *before) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << menuIn << "before=" << before; + QWindowsMenu *menu = static_cast<QWindowsMenu *>(menuIn); + const int index = insertBefore(&m_menus, menuIn, before); + menu->insertIntoMenuBar(this, index == m_menus.size() - 1, index); +} + +void QWindowsMenuBar::removeMenu(QPlatformMenu *menu) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << menu << ')' << this; + const int index = indexOf(m_menus, menu); + if (index != -1) + m_menus[index]->removeFromParent(); +} + +// When calling handleReparent() for a QWindow instances that does not have +// a platform window yet, set the menubar as dynamic property to be installed +// on platform window creation. +static const char menuBarPropertyName[] = "_q_windowsNativeMenuBar"; + +void QWindowsMenuBar::handleReparent(QWindow *newParentWindow) +{ + qCDebug(lcQpaMenus) << __FUNCTION__ << '(' << newParentWindow << ')' << this; + if (newParentWindow == nullptr) { + removeFromWindow(); + return; // Happens during Quick Controls 1 property setup + } + if (QPlatformWindow *platWin = newParentWindow->handle()) + install(static_cast<QWindowsWindow *>(platWin)); + else // Store for later creation, see menuBarOf() + newParentWindow->setProperty(menuBarPropertyName, qVariantFromValue<QObject *>(this)); +} + +QWindowsMenuBar *QWindowsMenuBar::menuBarOf(const QWindow *notYetCreatedWindow) +{ + const QVariant menuBarV = notYetCreatedWindow->property(menuBarPropertyName); + return menuBarV.canConvert<QObject *>() + ? qobject_cast<QWindowsMenuBar *>(menuBarV.value<QObject *>()) : nullptr; +} + +static inline void forceNcCalcSize(HWND hwnd) +{ + // Force WM_NCCALCSIZE to adjust margin: Does not appear to work? + SetWindowPos(hwnd, 0, 0, 0, 0, 0, + SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER); +} + +void QWindowsMenuBar::install(QWindowsWindow *window) +{ + const HWND hwnd = window->handle(); + const BOOL result = SetMenu(hwnd, m_hMenuBar); + if (result) { + window->setMenuBar(this); + forceNcCalcSize(hwnd); + } +} + +void QWindowsMenuBar::removeFromWindow() +{ + if (QWindowsWindow *window = platformWindow()) { + const HWND hwnd = window->handle(); + SetMenu(hwnd, nullptr); + window->setMenuBar(nullptr); + forceNcCalcSize(hwnd); + } +} + +QPlatformMenu *QWindowsMenuBar::menuForTag(quintptr tag) const +{ + return traverseMenus(this, [tag] (const QWindowsMenu *m) { return m->tag() == tag; }); +} + +QPlatformMenu *QWindowsMenuBar::createMenu() const +{ + QPlatformMenu *result = new QWindowsMenu; + qCDebug(lcQpaMenus) << __FUNCTION__ << this << "returns" << result; + return result; +} + +bool QWindowsMenuBar::notifyTriggered(uint id) +{ + QPlatformMenuItem *result = findMenuItemById(this, id); + if (result != nullptr) { + qCDebug(lcQpaMenus) << __FUNCTION__ << "id=" << id; + emit result->activated(); + } + return result != nullptr; +} + +bool QWindowsMenuBar::notifyAboutToShow(HMENU hmenu) +{ + if (QWindowsMenu *menu = findMenuByHandle(this, hmenu)) { + emit menu->aboutToShow(); + return true; + } + return false; +} + +QWindowsWindow *QWindowsMenuBar::platformWindow() const +{ + if (const QWindowsContext *ctx = QWindowsContext::instance()) { + if (QWindowsWindow *w = ctx->findPlatformWindow(this)) + return w; + } + return nullptr; +} + +void QWindowsMenuBar::redraw() const +{ + if (const QWindowsWindow *window = platformWindow()) + DrawMenuBar(window->handle()); +} + +#ifndef QT_NO_DEBUG_STREAM + +template <class M> /* Menu[Item] */ +static void formatTextSequence(QDebug &d, const QVector<M *> &v) +{ + if (const int size = v.size()) { + d << '[' << size << "]("; + for (int i = 0; i < size; ++i) { + if (i) + d << ", "; + if (!v.at(i)->isVisible()) + d << "[hidden] "; + d << '"' << v.at(i)->text() << '"'; + } + d << ')'; + } +} + +void QWindowsMenuItem::formatDebug(QDebug &d) const +{ + if (m_separator) + d << "separator, "; + else + d << '"' << m_text << "\", "; + d << static_cast<const void *>(this); + if (m_parentMenu) + d << ", parentMenu=" << static_cast<const void *>(m_parentMenu); + if (m_subMenu) + d << ", subMenu=" << static_cast<const void *>(m_subMenu); + d << ", tag=" << showbase << hex + << tag() << noshowbase << dec << ", id=" << m_id; + if (!m_shortcut.isEmpty()) + d << ", shortcut=" << m_shortcut; + if (m_visible) + d << " [visible]"; + if (m_enabled) + d << " [enabled]"; + if (m_checkable) + d << ", checked=" << m_checked; +} + +QDebug operator<<(QDebug d, const QPlatformMenuItem *i) +{ + QDebugStateSaver saver(d); + d.nospace(); + d.noquote(); + d << "QPlatformMenuItem("; + if (i) + static_cast<const QWindowsMenuItem *>(i)->formatDebug(d); + else + d << '0'; + d << ')'; + return d; +} + +void QWindowsMenu::formatDebug(QDebug &d) const +{ + d << '"' << m_text << "\", " << static_cast<const void *>(this) + << ", handle=" << m_hMenu; + if (m_parentMenuBar != nullptr) + d << " [on menubar]"; + if (m_parentMenu != nullptr) + d << " [on menu]"; + if (tag()) + d << ", tag=" << showbase << hex << tag() << noshowbase << dec; + if (m_visible) + d << " [visible]"; + if (m_enabled) + d << " [enabled]"; + d <<' '; + formatTextSequence(d, m_menuItems); +} + +void QWindowsMenuBar::formatDebug(QDebug &d) const +{ + d << static_cast<const void *>(this) << ' '; + formatTextSequence(d, m_menus); +} + +QDebug operator<<(QDebug d, const QPlatformMenu *m) +{ + QDebugStateSaver saver(d); + d.nospace(); + d.noquote(); + if (m) { + d << m->metaObject()->className() << '('; + static_cast<const QWindowsMenu *>(m)->formatDebug(d); + d << ')'; + } else { + d << "QPlatformMenu(0)"; + } + return d; +} + +QDebug operator<<(QDebug d, const QPlatformMenuBar *mb) +{ + QDebugStateSaver saver(d); + d.nospace(); + d.noquote(); + d << "QPlatformMenuBar("; + if (mb) + static_cast<const QWindowsMenuBar *>(mb)->formatDebug(d); + else + d << '0'; + d << ')'; + return d; +} + +#endif // !QT_NO_DEBUG_STREAM + +QT_END_NAMESPACE |