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/**
* @file llscrollingpanellist.cpp
* @brief
*
* $LicenseInfo:firstyear=2006&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llstl.h"
#include "llscrollingpanellist.h"
static LLDefaultChildRegistry::Register<LLScrollingPanelList> r("scrolling_panel_list");
/////////////////////////////////////////////////////////////////////
// LLScrollingPanelList
// This could probably be integrated with LLScrollContainer -SJB
void LLScrollingPanelList::clearPanels()
{
deleteAllChildren();
mPanelList.clear();
LLRect rc = getRect();
rc.setLeftTopAndSize(rc.mLeft, rc.mTop, 1, 1);
setRect(rc);
notifySizeChanged(rc.getHeight());
}
S32 LLScrollingPanelList::addPanel( LLScrollingPanel* panel )
{
addChildInBack( panel );
mPanelList.push_front( panel );
// Resize this view
S32 total_height = 0;
S32 max_width = 0;
S32 cur_gap = 0;
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
total_height += childp->getRect().getHeight() + cur_gap;
max_width = llmax( max_width, childp->getRect().getWidth() );
cur_gap = GAP_BETWEEN_PANELS;
}
LLRect rc = getRect();
rc.setLeftTopAndSize(rc.mLeft, rc.mTop, max_width, total_height);
setRect(rc);
notifySizeChanged(rc.getHeight());
// Reposition each of the child views
S32 cur_y = total_height;
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
cur_y -= childp->getRect().getHeight();
childp->translate( -childp->getRect().mLeft, cur_y - childp->getRect().mBottom);
cur_y -= GAP_BETWEEN_PANELS;
}
return total_height;
}
void LLScrollingPanelList::removePanel(LLScrollingPanel* panel)
{
U32 index = 0;
LLScrollingPanelList::panel_list_t::const_iterator iter;
if (!mPanelList.empty())
{
for (iter = mPanelList.begin(); iter != mPanelList.end(); ++iter, ++index)
{
if (*iter == panel)
{
break;
}
}
if(iter != mPanelList.end())
{
removePanel(index);
}
}
}
void LLScrollingPanelList::removePanel( U32 panel_index )
{
if ( mPanelList.empty() || panel_index >= mPanelList.size() )
{
LL_WARNS() << "Panel index " << panel_index << " is out of range!" << LL_ENDL;
return;
}
else
{
removeChild( mPanelList.at(panel_index) );
mPanelList.erase( mPanelList.begin() + panel_index );
}
const S32 GAP_BETWEEN_PANELS = 6;
// Resize this view
S32 total_height = 0;
S32 max_width = 0;
S32 cur_gap = 0;
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
total_height += childp->getRect().getHeight() + cur_gap;
max_width = llmax( max_width, childp->getRect().getWidth() );
cur_gap = GAP_BETWEEN_PANELS;
}
LLRect rc = getRect();
rc.setLeftTopAndSize(rc.mLeft, rc.mTop, max_width, total_height);
setRect(rc);
notifySizeChanged(rc.getHeight());
// Reposition each of the child views
S32 cur_y = total_height;
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
cur_y -= childp->getRect().getHeight();
childp->translate( -childp->getRect().mLeft, cur_y - childp->getRect().mBottom);
cur_y -= GAP_BETWEEN_PANELS;
}
}
void LLScrollingPanelList::updatePanels(bool allow_modify)
{
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
childp->updatePanel(allow_modify);
}
}
void LLScrollingPanelList::updatePanelVisiblilty()
{
// Determine visibility of children.
S32 BORDER_WIDTH = 2; // HACK
LLRect parent_local_rect = getParent()->getRect();
parent_local_rect.stretch( -BORDER_WIDTH );
LLRect parent_screen_rect;
getParent()->localPointToScreen(
BORDER_WIDTH, 0,
&parent_screen_rect.mLeft, &parent_screen_rect.mBottom );
getParent()->localPointToScreen(
parent_local_rect.getWidth() - BORDER_WIDTH, parent_local_rect.getHeight() - BORDER_WIDTH,
&parent_screen_rect.mRight, &parent_screen_rect.mTop );
for (std::deque<LLScrollingPanel*>::iterator iter = mPanelList.begin();
iter != mPanelList.end(); ++iter)
{
LLScrollingPanel *childp = *iter;
const LLRect& local_rect = childp->getRect();
LLRect screen_rect;
childp->localPointToScreen(
0, 0,
&screen_rect.mLeft, &screen_rect.mBottom );
childp->localPointToScreen(
local_rect.getWidth(), local_rect.getHeight(),
&screen_rect.mRight, &screen_rect.mTop );
bool intersects =
( (screen_rect.mRight > parent_screen_rect.mLeft) && (screen_rect.mLeft < parent_screen_rect.mRight) ) &&
( (screen_rect.mTop > parent_screen_rect.mBottom) && (screen_rect.mBottom < parent_screen_rect.mTop) );
childp->setVisible( intersects );
}
}
void LLScrollingPanelList::draw()
{
updatePanelVisiblilty();
LLUICtrl::draw();
}
void LLScrollingPanelList::notifySizeChanged(S32 height)
{
LLSD info;
info["action"] = "size_changes";
info["height"] = height;
notifyParent(info);
}
// EOF
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