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/*
* Dillo Widget
*
* Copyright 2014 Sebastian Geerken <sgeerken@dillo.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "core.hh"
#include "../lout/debug.hh"
using namespace lout::misc;
using namespace lout::container::typed;
namespace dw {
namespace core {
StackingContextMgr::StackingContextMgr (Widget *widget)
{
DBG_OBJ_CREATE ("dw::core::StackingContextMgr");
scWidgets = new Vector<Widget> (1, false);
DBG_OBJ_SET_NUM ("scWidgets.size", scWidgets->size());
minZIndex = maxZIndex = 0; // Just to have some defined values.
}
StackingContextMgr::~StackingContextMgr ()
{
delete scWidgets;
DBG_OBJ_DELETE ();
}
void StackingContextMgr::addChildSCWidget (Widget *widget)
{
if (scWidgets->size () == 0)
minZIndex = maxZIndex = widget->getStyle()->zIndex;
else {
minZIndex = min (minZIndex, widget->getStyle()->zIndex);
maxZIndex = max (maxZIndex, widget->getStyle()->zIndex);
}
scWidgets->put (widget);
DBG_OBJ_SET_NUM ("scWidgets.size", scWidgets->size());
DBG_OBJ_ARRSET_PTR ("scWidgets", scWidgets->size() - 1, widget);
}
void StackingContextMgr::drawBottom (View *view, Rectangle *area)
{
DBG_OBJ_ENTER ("draw", 0, "drawBottom", "%d, %d, %d * %d",
area->x, area->y, area->width, area->height);
draw (view, area, INT_MIN, -1);
DBG_OBJ_LEAVE ();
}
void StackingContextMgr::drawTop (View *view, Rectangle *area)
{
DBG_OBJ_ENTER ("draw", 0, "drawBottom", "%d, %d, %d * %d",
area->x, area->y, area->width, area->height);
draw (view, area, 0, INT_MAX);
DBG_OBJ_LEAVE ();
}
void StackingContextMgr::draw (View *view, Rectangle *area, int startZIndex,
int endZIndex)
{
DBG_OBJ_ENTER ("draw", 0, "draw", "[%d, %d, %d * %d], %d, %d",
area->x, area->y, area->width, area->height, startZIndex,
endZIndex);
for (int zIndex = max (minZIndex, startZIndex);
zIndex <= min (maxZIndex, endZIndex); zIndex++) {
DBG_OBJ_MSGF ("draw", 1, "drawing zIndex = %d", zIndex);
DBG_OBJ_MSG_START ();
for (int i = 0; i < scWidgets->size (); i++) {
Widget *child = scWidgets->get (i);
DBG_OBJ_MSGF ("draw", 2, "widget %p has zIndex = %d",
child, child->getStyle()->zIndex);
Rectangle childArea;
if (child->getStyle()->zIndex == zIndex &&
child->intersects (area, &childArea))
child->draw (view, &childArea);
}
DBG_OBJ_MSG_END ();
}
DBG_OBJ_LEAVE ();
}
} // namespace core
} // namespace dw
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