phoenix-firestorm/indra/newview/pieslice.cpp

159 lines
3.7 KiB
C++

/**
* @file pieslice.cpp
* @brief Pie menu slice class
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
* Copyright (C) 2011, Zi Ree @ Second Life
*
* 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 "llviewerprecompiledheaders.h"
#include "pieslice.h"
// pick up parameters from the XUI definition
PieSlice::Params::Params() :
on_click("on_click"),
on_visible("on_visible"),
on_enable("on_enable"),
start_autohide("start_autohide", false),
autohide("autohide", false),
check_enable_once("check_enable_once", false)
{
}
// create a new slice and memorize the XUI parameters
PieSlice::PieSlice(const PieSlice::Params& p) :
LLUICtrl(p),
mLabel(p.label),
mStartAutohide(p.start_autohide),
mAutohide(p.autohide),
mCheckEnableOnce(p.check_enable_once),
mDoUpdateEnabled(true)
{
LL_DEBUGS("Pie") << "PieSlice::PieSlice(): " << mLabel << " " << mAutohide << " " << mCheckEnableOnce << LL_ENDL;
}
// initialize parameters
void PieSlice::initFromParams(const Params& p)
{
// add a callback if on_click is provided
if (p.on_click.isProvided())
{
setCommitCallback(initCommitCallback(p.on_click));
}
// add a callback if on_visible is provided
if (p.on_visible.isProvided())
{
mVisibleSignal.connect(initEnableCallback(p.on_visible));
}
// add a callback if on_enable is provided
if (p.on_enable.isProvided())
{
setEnableCallback(initEnableCallback(p.on_enable));
// Set the enabled control variable (for backwards compatability)
if (p.on_enable.control_name.isProvided() && !p.on_enable.control_name().empty())
{
LLControlVariable* control = findControl(p.on_enable.control_name());
if (control)
{
setEnabledControlVariable(control);
}
}
}
LLUICtrl::initFromParams(p);
}
// call this to make the menu update its "enabled" status
void PieSlice::updateEnabled()
{
if (mDoUpdateEnabled && mEnableSignal.num_slots() > 0)
{
bool enabled = mEnableSignal(this, LLSD());
if (mEnabledControlVariable)
{
if (!enabled)
{
// callback overrides control variable; this will call setEnabled()
mEnabledControlVariable->set(false);
}
}
else
{
setEnabled(enabled);
}
mDoUpdateEnabled = !mCheckEnableOnce;
}
}
// call this to make the menu update its "visible" status
void PieSlice::updateVisible()
{
if (mVisibleSignal.num_slots() > 0)
{
bool visible = mVisibleSignal(this, LLSD());
setVisible(visible);
}
}
// accessor
LLSD PieSlice::getValue() const
{
return getLabel();
}
// accessor
void PieSlice::setValue(const LLSD& value)
{
setLabel(value.asString());
}
// accessor
std::string PieSlice::getLabel() const
{
return mLabel;
}
// accessor
void PieSlice::setLabel(const std::string& newLabel)
{
mLabel = newLabel;
}
// accessor
bool PieSlice::getStartAutohide()
{
return mStartAutohide;
}
// accessor
bool PieSlice::getAutohide()
{
return mStartAutohide | mAutohide;
}
void PieSlice::resetUpdateEnabledCheck()
{
mDoUpdateEnabled = true;
}