本文整理汇总了C++中BMenu::_SetStickyMode方法的典型用法代码示例。如果您正苦于以下问题：C++ BMenu::_SetStickyMode方法的具体用法？C++ BMenu::_SetStickyMode怎么用？C++ BMenu::_SetStickyMode使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BMenu的用法示例。
在下文中一共展示了BMenu::_SetStickyMode方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Window
BMenuItem*
BMenuBar::_Track(int32* action, int32 startIndex, bool showMenu)
{
// TODO: Cleanup, merge some "if" blocks if possible
fChosenItem = NULL;
BWindow* window = Window();
fState = MENU_STATE_TRACKING;
BPoint where;
uint32 buttons;
if (window->Lock()) {
if (startIndex != -1) {
be_app->ObscureCursor();
_SelectItem(ItemAt(startIndex), true, false);
}
GetMouse(&where, &buttons);
window->Unlock();
}
while (fState != MENU_STATE_CLOSED) {
bigtime_t snoozeAmount = 40000;
if (Window() == NULL || !window->Lock())
break;
BMenuItem* menuItem = NULL;
if (dynamic_cast<_BMCMenuBar_*>(this))
menuItem = ItemAt(0);
else
menuItem = _HitTestItems(where, B_ORIGIN);
if (_OverSubmenu(fSelected, ConvertToScreen(where))
|| fState == MENU_STATE_KEY_TO_SUBMENU) {
// call _Track() from the selected sub-menu when the mouse cursor
// is over its window
BMenu* menu = fSelected->Submenu();
window->Unlock();
snoozeAmount = 30000;
bool wasSticky = _IsStickyMode();
menu->_SetStickyMode(wasSticky);
int localAction;
fChosenItem = menu->_Track(&localAction);
// The mouse could have meen moved since the last time we
// checked its position, or buttons might have been pressed.
// Unfortunately our child menus don't tell
// us the new position.
// TODO: Maybe have a shared struct between all menus
// where to store the current mouse position ?
// (Or just use the BView mouse hooks)
BPoint newWhere;
if (window->Lock()) {
GetMouse(&newWhere, &buttons);
window->Unlock();
}
// This code is needed to make menus
// that are children of BMenuFields "sticky" (see ticket #953)
if (localAction == MENU_STATE_CLOSED) {
if (fExtraRect != NULL && fExtraRect->Contains(where)
// 9 = 3 pixels ^ 2 (since point_distance() returns the
// square of the distance)
&& point_distance(newWhere, where) < 9) {
_SetStickyMode(true);
fExtraRect = NULL;
} else
fState = MENU_STATE_CLOSED;
}
if (!window->Lock())
break;
} else if (menuItem != NULL) {
if (menuItem->Submenu() != NULL && menuItem != fSelected) {
if (menuItem->Submenu()->Window() == NULL) {
// open the menu if it's not opened yet
_SelectItem(menuItem);
} else {
// Menu was already opened, close it and bail
_SelectItem(NULL);
fState = MENU_STATE_CLOSED;
fChosenItem = NULL;
}
} else {
// No submenu, just select the item
_SelectItem(menuItem);
}
} else if (menuItem == NULL && fSelected != NULL
&& !_IsStickyMode() && Bounds().Contains(where)) {
_SelectItem(NULL);
fState = MENU_STATE_TRACKING;
}
window->Unlock();
if (fState != MENU_STATE_CLOSED) {
// If user doesn't move the mouse, loop here,
// so we don't interfere with keyboard menu navigation
BPoint newLocation = where;
uint32 newButtons = buttons;
do {
snooze(snoozeAmount);
if (!LockLooper())
//.........这里部分代码省略.........