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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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 2 of the License, or
* 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 "gui/widgets/listbox.h"
#include "client.h"
#include "configuration.h"
#include "gui/palette.h"
#include "gui/sdlinput.h"
#include "gui/theme.h"
#include <guichan/font.hpp>
#include <guichan/graphics.hpp>
#include <guichan/key.hpp>
#include <guichan/listmodel.hpp>
#include "debug.h"
float ListBox::mAlpha = 1.0;
ListBox::ListBox(gcn::ListModel *listModel):
gcn::ListBox(listModel)
{
}
ListBox::~ListBox()
{
}
void ListBox::updateAlpha()
{
float alpha = std::max(Client::getGuiAlpha(),
Theme::instance()->getMinimumOpacity());
if (mAlpha != alpha)
mAlpha = alpha;
}
void ListBox::draw(gcn::Graphics *graphics)
{
if (!mListModel)
return;
updateAlpha();
graphics->setColor(Theme::getThemeColor(Theme::HIGHLIGHT,
static_cast<int>(mAlpha * 255.0f)));
graphics->setFont(getFont());
const int height = getRowHeight();
// Draw filled rectangle around the selected list element
if (mSelected >= 0)
{
graphics->fillRectangle(gcn::Rectangle(0, height * mSelected,
getWidth(), height));
}
// Draw the list elements
graphics->setColor(Theme::getThemeColor(Theme::TEXT));
for (int i = 0, y = 0; i < mListModel->getNumberOfElements();
++i, y += height)
{
graphics->drawText(mListModel->getElementAt(i), 1, y);
}
}
void ListBox::keyPressed(gcn::KeyEvent& keyEvent)
{
gcn::Key key = keyEvent.getKey();
if (key.getValue() == Key::ENTER || key.getValue() == Key::SPACE)
{
distributeActionEvent();
keyEvent.consume();
}
else if (key.getValue() == Key::UP)
{
if (getSelected() > 0)
setSelected(mSelected - 1);
else if (getSelected() == 0 && mWrappingEnabled && getListModel())
setSelected(getListModel()->getNumberOfElements() - 1);
keyEvent.consume();
}
else if (key.getValue() == Key::DOWN)
{
if (getSelected() < (getListModel()->getNumberOfElements() - 1))
{
setSelected(mSelected + 1);
}
else if (getSelected() == (getListModel()->getNumberOfElements() - 1)
&& mWrappingEnabled)
{
setSelected(0);
}
keyEvent.consume();
}
else if (key.getValue() == Key::HOME)
{
setSelected(0);
keyEvent.consume();
}
else if (key.getValue() == Key::END && getListModel())
{
setSelected(getListModel()->getNumberOfElements() - 1);
keyEvent.consume();
}
}
// Don't do anything on scrollwheel. ScrollArea will deal with that.
void ListBox::mouseWheelMovedUp(gcn::MouseEvent &mouseEvent A_UNUSED)
{
}
void ListBox::mouseWheelMovedDown(gcn::MouseEvent &mouseEvent A_UNUSED)
{
}
void ListBox::mouseDragged(gcn::MouseEvent &event)
{
if (event.getButton() != gcn::MouseEvent::LEFT || getRowHeight() == 0)
return;
// Make list selection update on drag, but guard against negative y
int y = std::max(0, event.getY());
if (getRowHeight())
setSelected(y / getRowHeight());
}
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