void allocator_free (struct allocator *a, void *base, size_t amount)
{
ASSERT (a != NULL);
if (base == NULL || amount == 0)
return;
ASSERT (base >= a->items);
ASSERT (base <= item_pos (a, bitmap_size (a->used_map)-1));
size_t pos = (uintptr_t) (base - a->items) / a->item_size;
ASSERT (bitmap_all (a->used_map, pos, amount));
bitmap_set_multiple (a->used_map, pos, amount, false);
}
void *
allocator_alloc (struct allocator *a, size_t amount)
{
ASSERT (a != NULL);
if (amount == 0)
return NULL;
size_t result = bitmap_scan_and_flip (a->used_map, 0, amount, false);
if (result == BITMAP_ERROR)
return NULL;
return item_pos (a, result);
}
//----------------------------------------------------------------------------//
void FalagardListView::createRenderGeometry(ListView* list_view)
{
Rectf items_area(getViewRenderArea());
glm::vec2 item_pos(getItemRenderStartPosition(list_view, items_area));
for (size_t i = 0; i < list_view->getItems().size(); ++i)
{
ListViewItemRenderingState* item = list_view->getItems().at(i);
RenderedString& rendered_string = item->d_string;
Sizef size(item->d_size);
size.d_width = std::max(items_area.getWidth(), size.d_width);
Rectf item_rect;
item_rect.left(item_pos.x);
item_rect.top(item_pos.y);
item_rect.setSize(size);
if (!item->d_icon.empty())
{
Image& img = ImageManager::getSingleton().get(item->d_icon);
Rectf icon_rect(item_rect);
icon_rect.setWidth(size.d_height);
icon_rect.setHeight(size.d_height);
Rectf icon_clipper(icon_rect.getIntersection(items_area));
ImageRenderSettings renderSettings(
icon_rect, &icon_clipper,
true, ICON_COLOUR_RECT, 1.0f);
auto imgGeomBuffers = img.createRenderGeometry(renderSettings);
list_view->appendGeometryBuffers(imgGeomBuffers);
item_rect.left(item_rect.left() + icon_rect.getWidth());
}
Rectf item_clipper(item_rect.getIntersection(items_area));
createRenderGeometryAndAddToItemView(list_view, rendered_string, item_rect,
list_view->getFont(), &item_clipper, item->d_isSelected);
item_pos.y += size.d_height;
}
}
//----------------------------------------------------------------------------//
void FalagardTreeView::render()
{
const WidgetLookFeel& wlf = getLookNFeel();
TreeView* tree_view = getView();
tree_view->prepareForRender();
bool has_focused_state =
tree_view->isFocused() && wlf.isStateImageryPresent("EnabledFocused");
const StateImagery* imagery = &wlf.getStateImagery(
tree_view->isEffectiveDisabled() ? "Disabled" :
(has_focused_state ? "EnabledFocused" : "Enabled"));
imagery->render(*tree_view);
Rectf items_area(getViewRenderArea());
glm::vec2 item_pos(getItemRenderStartPosition(tree_view, items_area));
renderTreeItem(tree_view, items_area, item_pos, &tree_view->getRootItemState(), 0);
}
