void FocusHandler::requestFocus(const Widget *const widget)
{
if (!widget || widget == mFocusedWidget)
return;
int toBeFocusedIndex = -1;
for (unsigned int i = 0, fsz = CAST_U32(
mWidgets.size()); i < fsz; ++i)
{
if (mWidgets[i] == widget)
{
toBeFocusedIndex = i;
break;
}
}
if (toBeFocusedIndex < 0)
return;
Widget *const oldFocused = mFocusedWidget;
if (oldFocused != widget)
{
mFocusedWidget = mWidgets.at(toBeFocusedIndex);
if (oldFocused)
{
Event focusEvent(oldFocused);
distributeFocusLostEvent(focusEvent);
}
Event focusEvent(mWidgets.at(toBeFocusedIndex));
distributeFocusGainedEvent(focusEvent);
}
}
void FocusHandler::focusPrevious()
{
if (mWidgets.size() == 0)
{
mFocusedWidget = NULL;
return;
}
int i;
int focusedWidget = -1;
for (i = 0; i < (int)mWidgets.size(); ++i)
{
if (mWidgets[i] == mFocusedWidget)
{
focusedWidget = i;
}
}
int focused = focusedWidget;
// i is a counter that ensures that the following loop
// won't get stuck in an infinite loop
i = (int)mWidgets.size();
do
{
--focusedWidget;
if (i==0)
{
focusedWidget = -1;
break;
}
--i;
if (focusedWidget <= 0)
{
focusedWidget = mWidgets.size() - 1;
}
if (focusedWidget == focused)
{
return;
}
}
while (!mWidgets.at(focusedWidget)->isFocusable());
if (focusedWidget >= 0)
{
mFocusedWidget = mWidgets.at(focusedWidget);
Event focusEvent(mFocusedWidget);
distributeFocusGainedEvent(focusEvent);
}
if (focused >= 0)
{
Event focusEvent(mWidgets.at(focused));
distributeFocusLostEvent(focusEvent);
}
}
void FocusHandler::focusPrevious()
{
if (mWidgets.empty())
{
mFocusedWidget = nullptr;
return;
}
int i;
int focusedWidget = -1;
const int sz = CAST_S32(mWidgets.size());
for (i = 0; i < sz; ++ i)
{
if (mWidgets[i] == mFocusedWidget)
focusedWidget = i;
}
const int focused = focusedWidget;
// i is a counter that ensures that the following loop
// won't get stuck in an infinite loop
i = sz;
do
{
-- focusedWidget;
if (i == 0)
{
focusedWidget = -1;
break;
}
-- i;
if (focusedWidget <= 0)
focusedWidget = sz - 1;
if (focusedWidget == focused)
return;
}
while (!mWidgets.at(focusedWidget)->isFocusable());
if (focusedWidget >= 0)
{
mFocusedWidget = mWidgets.at(focusedWidget);
Event focusEvent(mFocusedWidget);
distributeFocusGainedEvent(focusEvent);
}
if (focused >= 0)
{
Event focusEvent(mWidgets.at(focused));
distributeFocusLostEvent(focusEvent);
}
}
void FocusHandler::focusNext()
{
int i;
int focusedWidget = -1;
const int sz = static_cast<int>(mWidgets.size());
for (i = 0; i < sz; ++i)
{
if (mWidgets[i] == mFocusedWidget)
focusedWidget = i;
}
const int focused = focusedWidget;
// i is a counter that ensures that the following loop
// won't get stuck in an infinite loop
i = sz;
do
{
++ focusedWidget;
if (i == 0)
{
focusedWidget = -1;
break;
}
-- i;
if (focusedWidget >= sz)
focusedWidget = 0;
if (focusedWidget == focused)
return;
}
while (!mWidgets.at(focusedWidget)->isFocusable());
if (focusedWidget >= 0)
{
mFocusedWidget = mWidgets.at(focusedWidget);
Event focusEvent(mFocusedWidget);
distributeFocusGainedEvent(focusEvent);
}
if (focused >= 0)
{
Event focusEvent(mWidgets.at(focused));
distributeFocusLostEvent(focusEvent);
}
}
void FocusHandler::requestFocus(Widget* widget)
{
if (widget == NULL
|| widget == mFocusedWidget)
{
return;
}
unsigned int i = 0;
int toBeFocusedIndex = -1;
for (i = 0; i < mWidgets.size(); ++i)
{
if (mWidgets[i] == widget)
{
toBeFocusedIndex = i;
break;
}
}
if (toBeFocusedIndex < 0)
{
throw FCN_EXCEPTION("Trying to focus a none existing widget.");
}
Widget *oldFocused = mFocusedWidget;
if (oldFocused != widget)
{
mFocusedWidget = mWidgets.at(toBeFocusedIndex);
if (oldFocused != NULL)
{
Event focusEvent(oldFocused);
distributeFocusLostEvent(focusEvent);
}
Event focusEvent(mWidgets.at(toBeFocusedIndex));
distributeFocusGainedEvent(focusEvent);
}
}
void FocusHandler::tabPrevious()
{
if (mFocusedWidget)
{
if (!mFocusedWidget->isTabOutEnabled())
return;
}
if (mWidgets.empty())
{
mFocusedWidget = nullptr;
return;
}
int i;
int focusedWidget = -1;
const int sz = CAST_S32(mWidgets.size());
for (i = 0; i < sz; ++ i)
{
if (mWidgets[i] == mFocusedWidget)
focusedWidget = i;
}
const int focused = focusedWidget;
bool done = false;
// i is a counter that ensures that the following loop
// won't get stuck in an infinite loop
i = sz;
do
{
-- focusedWidget;
if (i == 0)
{
focusedWidget = -1;
break;
}
-- i;
if (focusedWidget <= 0)
focusedWidget = sz - 1;
if (focusedWidget == focused)
return;
const Widget *const widget = mWidgets.at(focusedWidget);
if (widget->isFocusable() && widget->isTabInEnabled() &&
(!mModalFocusedWidget || widget->isModalFocused()))
{
done = true;
}
}
while (!done);
if (focusedWidget >= 0)
{
mFocusedWidget = mWidgets.at(focusedWidget);
Event focusEvent(mFocusedWidget);
distributeFocusGainedEvent(focusEvent);
}
if (focused >= 0)
{
Event focusEvent(mWidgets.at(focused));
distributeFocusLostEvent(focusEvent);
}
checkForWindow();
}
void FocusHandler::tabPrevious()
{
if (mFocusedWidget != NULL)
{
if (!mFocusedWidget->isTabOutEnabled())
{
return;
}
}
if (mWidgets.size() == 0)
{
mFocusedWidget = NULL;
return;
}
int i;
int focusedWidget = -1;
for (i = 0; i < (int)mWidgets.size(); ++i)
{
if (mWidgets[i] == mFocusedWidget)
{
focusedWidget = i;
}
}
int focused = focusedWidget;
bool done = false;
// i is a counter that ensures that the following loop
// won't get stuck in an infinite loop
i = (int)mWidgets.size();
do
{
--focusedWidget;
if (i==0)
{
focusedWidget = -1;
break;
}
--i;
if (focusedWidget <= 0)
{
focusedWidget = mWidgets.size() - 1;
}
if (focusedWidget == focused)
{
return;
}
if (mWidgets.at(focusedWidget)->isFocusable() &&
mWidgets.at(focusedWidget)->isTabInEnabled() &&
(mModalFocusedWidget == NULL ||
mWidgets.at(focusedWidget)->isModalFocused()))
{
done = true;
}
}
while (!done);
if (focusedWidget >= 0)
{
mFocusedWidget = mWidgets.at(focusedWidget);
Event focusEvent(mFocusedWidget);
distributeFocusGainedEvent(focusEvent);
}
if (focused >= 0)
{
Event focusEvent(mWidgets.at(focused));
distributeFocusLostEvent(focusEvent);
}
}
