bool CGUIPanelContainer::MoveDown(bool wrapAround)
{
if (GetCursor() + m_itemsPerRow < m_itemsPerPage * m_itemsPerRow && (GetOffset() + 1 + GetCursor() / m_itemsPerRow) * m_itemsPerRow < (int)m_items.size())
{ // move to last item if necessary
if ((GetOffset() + 1)*m_itemsPerRow + GetCursor() >= (int)m_items.size())
SetCursor((int)m_items.size() - 1 - GetOffset()*m_itemsPerRow);
else
SetCursor(GetCursor() + m_itemsPerRow);
}
else if ((GetOffset() + 1 + GetCursor() / m_itemsPerRow) * m_itemsPerRow < (int)m_items.size())
{ // we scroll to the next row, and move to last item if necessary
if ((GetOffset() + 1)*m_itemsPerRow + GetCursor() >= (int)m_items.size())
SetCursor((int)m_items.size() - 1 - (GetOffset() + 1)*m_itemsPerRow);
ScrollToOffset(GetOffset() + 1);
}
else if (wrapAround)
{ // move first item in list
SetCursor(GetCursor() % m_itemsPerRow);
ScrollToOffset(0);
SetContainerMoving(1);
}
else
return false;
return true;
}
void CGUIFixedListContainer::SelectItem(int item)
{
// Check that GetOffset() is valid
ValidateOffset();
// only select an item if it's in a valid range
if (item >= 0 && item < (int)m_items.size())
{
// Select the item requested - we first set the cursor position
// which may be different at either end of the list, then the offset
int minCursor, maxCursor;
GetCursorRange(minCursor, maxCursor);
int cursor;
if ((int)m_items.size() - 1 - item <= maxCursor - m_fixedCursor)
cursor = std::max(m_fixedCursor, maxCursor + item - (int)m_items.size() + 1);
else if (item <= m_fixedCursor - minCursor)
cursor = std::min(m_fixedCursor, minCursor + item);
else
cursor = m_fixedCursor;
if (cursor != GetCursor())
SetContainerMoving(cursor - GetCursor());
SetCursor(cursor);
ScrollToOffset(item - GetCursor());
}
}
void CGUIBaseContainer::ScrollToOffset(int offset)
{
int minOffset, maxOffset;
if(GetOffsetRange(minOffset, maxOffset))
offset = std::max(minOffset, std::min(offset, maxOffset));
float size = (m_layout) ? m_layout->Size(m_orientation) : 10.0f;
int range = ScrollCorrectionRange();
if (offset * size < m_scroller.GetValue() && m_scroller.GetValue() - offset * size > size * range)
{ // scrolling up, and we're jumping more than 0.5 of a screen
m_scroller.SetValue((offset + range) * size);
}
if (offset * size > m_scroller.GetValue() && offset * size - m_scroller.GetValue() > size * range)
{ // scrolling down, and we're jumping more than 0.5 of a screen
m_scroller.SetValue((offset - range) * size);
}
m_scroller.ScrollTo(offset * size);
m_lastScrollStartTimer.StartZero();
if (!m_wasReset)
{
SetContainerMoving(offset - GetOffset());
if (m_scroller.IsScrolling())
m_scrollTimer.Start();
else
m_scrollTimer.Stop();
}
SetOffset(offset);
}
bool CGUIListContainer::MoveUp(bool wrapAround)
{
if (GetCursor() > 0)
{
SetCursor(GetCursor() - 1);
}
else if (GetCursor() == 0 && GetOffset())
{
ScrollToOffset(GetOffset() - 1);
}
else if (wrapAround)
{
if (m_items.size() > 0)
{ // move 2 last item in list, and set our container moving up
int offset = m_items.size() - m_itemsPerPage;
if (offset < 0) offset = 0;
SetCursor(m_items.size() - offset - 1);
ScrollToOffset(offset);
SetContainerMoving(-1);
}
}
else
return false;
return true;
}
void CGUIListContainer::SetCursor(int cursor)
{
if (cursor > m_itemsPerPage - 1) cursor = m_itemsPerPage - 1;
if (cursor < 0) cursor = 0;
if (!m_wasReset)
SetContainerMoving(cursor - GetCursor());
CGUIBaseContainer::SetCursor(cursor);
}
void CGUIPanelContainer::SetCursor(int cursor)
{
// +1 to ensure we're OK if we have a half item
if (cursor > (m_itemsPerPage + 1)*m_itemsPerRow - 1) cursor = (m_itemsPerPage + 1)*m_itemsPerRow - 1;
if (cursor < 0) cursor = 0;
if (!m_wasReset)
SetContainerMoving(cursor - GetCursor());
CGUIBaseContainer::SetCursor(cursor);
}
bool CGUIFixedListContainer::MoveUp(bool wrapAround)
{
int item = GetSelectedItem();
if (item > 0)
SelectItem(item - 1);
else if (wrapAround)
{
SelectItem((int)m_items.size() - 1);
SetContainerMoving(-1);
}
else
return false;
return true;
}
bool CGUIFixedListContainer::MoveDown(bool wrapAround)
{
int item = GetSelectedItem();
if (item < (int)m_items.size() - 1)
SelectItem(item + 1);
else if (wrapAround)
{ // move first item in list
SelectItem(0);
SetContainerMoving(1);
}
else
return false;
return true;
}
bool CGUIPanelContainer::MoveUp(bool wrapAround)
{
if (GetCursor() >= m_itemsPerRow)
SetCursor(GetCursor() - m_itemsPerRow);
else if (GetOffset() > 0)
ScrollToOffset(GetOffset() - 1);
else if (wrapAround)
{ // move last item in list in this column
SetCursor((GetCursor() % m_itemsPerRow) + (m_itemsPerPage - 1) * m_itemsPerRow);
int offset = std::max((int)GetRows() - m_itemsPerPage, 0);
// should check here whether cursor is actually allowed here, and reduce accordingly
if (offset * m_itemsPerRow + GetCursor() >= (int)m_items.size())
SetCursor((int)m_items.size() - offset * m_itemsPerRow - 1);
ScrollToOffset(offset);
SetContainerMoving(-1);
}
else
return false;
return true;
}
bool CGUIListContainer::MoveDown(bool wrapAround)
{
if (GetOffset() + GetCursor() + 1 < (int)m_items.size())
{
if (GetCursor() + 1 < m_itemsPerPage)
{
SetCursor(GetCursor() + 1);
}
else
{
ScrollToOffset(GetOffset() + 1);
}
}
else if(wrapAround)
{ // move first item in list, and set our container moving in the "down" direction
SetCursor(0);
ScrollToOffset(0);
SetContainerMoving(1);
}
else
return false;
return true;
}