/*************************************************************************
Layout the widgets
*************************************************************************/
void TabControl::performChildWindowLayout()
{
Window::performChildWindowLayout();
if (d_tabButtonPane)
{
// Set the size of the tab button area (full width, height from tab height)
d_tabButtonPane->setSize(Relative, Size(1.0f, d_rel_tabHeight) );
d_tabButtonPane->setPosition(Relative, Point(0.0f, 0.0f) );
// Calculate the positions and sizes of the tab buttons
TabButtonIndexMap::iterator i, iend;
iend = d_tabButtonIndexMap.end();
uint x = 0;
for (i = d_tabButtonIndexMap.begin(); i != iend; ++i, ++x)
{
TabButton* btn = i->second;
calculateTabButtonSizePosition(btn, x);
}
}
if (d_tabContentPane)
{
// Set the size of the content area
d_tabContentPane->setSize(Relative, Size(1.0f, 1.0f - d_rel_tabHeight) );
d_tabContentPane->setPosition(Relative, Point(0.0f, d_rel_tabHeight) );
}
}
/*************************************************************************
Layout the widgets
*************************************************************************/
void TabControl::performChildWindowLayout()
{
Window* tabButtonPane = getTabButtonPane();
Window* tabContentPane = getTabPane();
// Enable top/bottom edges of the tabPane control,
// if supported by looknfeel
if (tabContentPane->isPropertyPresent (EnableTop))
tabContentPane->setProperty (EnableTop, (d_tabPanePos == Top) ? n0 : n1);
if (tabContentPane->isPropertyPresent (EnableBottom))
tabContentPane->setProperty (EnableBottom, (d_tabPanePos == Top) ? n1 : n0);
if (tabButtonPane->isPropertyPresent (EnableTop))
tabButtonPane->setProperty (EnableTop, (d_tabPanePos == Top) ? n0 : n1);
if (tabButtonPane->isPropertyPresent (EnableBottom))
tabButtonPane->setProperty (EnableBottom, (d_tabPanePos == Top) ? n1 : n0);
Window::performChildWindowLayout();
// Calculate the size & position of the tab scroll buttons
Window *scrollLeftBtn = 0, *scrollRightBtn = 0;
String name = getName() + ButtonScrollLeftSuffix;
if (WindowManager::getSingleton().isWindowPresent (name))
scrollLeftBtn = WindowManager::getSingleton().getWindow (name);
name = getName() + ButtonScrollRightSuffix;
if (WindowManager::getSingleton().isWindowPresent (name))
scrollRightBtn = WindowManager::getSingleton().getWindow (name);
// Calculate the positions and sizes of the tab buttons
if (d_firstTabOffset > 0)
d_firstTabOffset = 0;
for (;;)
{
size_t i;
for (i = 0; i < d_tabButtonVector.size (); ++i)
calculateTabButtonSizePosition (i);
if (d_tabButtonVector.empty ())
{
if (scrollRightBtn)
scrollRightBtn->setVisible (false);
if (scrollLeftBtn)
scrollLeftBtn->setVisible (false);
break;
}
// Now check if tab pane wasn't scrolled too far
--i;
float xmax = d_tabButtonVector [i]->getXPosition ().d_offset +
d_tabButtonVector [i]->getPixelSize ().d_width;
float width = tabContentPane->getPixelSize ().d_width;
// If right button margin exceeds right window margin,
// or leftmost button is at offset 0, finish
if ((xmax > (width - 0.5)) || (d_firstTabOffset == 0))
{
if (scrollLeftBtn)
scrollLeftBtn->setVisible (d_firstTabOffset < 0);
if (scrollRightBtn)
scrollRightBtn->setVisible (xmax > width);
break;
}
// Scroll the tab pane until the rightmost button
// touches the right margin
d_firstTabOffset += width - xmax;
// If we scrolled it too far, set leftmost button offset to 0
if (d_firstTabOffset > 0)
d_firstTabOffset = 0;
}
}
