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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) 2011-2013 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 "keyevent.h"
#include "gui/gui.h"
#include "gui/sdlinput.h"
#include <guichan/focushandler.hpp>
#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(const Widget2 *const widget,
gcn::ListModel *const listModel,
const std::string &skin) :
gcn::ListBox(listModel),
Widget2(widget),
mHighlightColor(getThemeColor(Theme::HIGHLIGHT)),
mForegroundColor2(getThemeColor(Theme::LISTBOX_OUTLINE)),
mForegroundSelectedColor(getThemeColor(Theme::LISTBOX_SELECTED)),
mForegroundSelectedColor2(getThemeColor(Theme::LISTBOX_SELECTED_OUTLINE)),
mOldSelected(-1),
mPadding(0),
mSkin(nullptr),
mDistributeMousePressed(true)
{
mForegroundColor = getThemeColor(Theme::LISTBOX);
Theme *const theme = Theme::instance();
if (theme)
mSkin = Theme::instance()->load(skin, "listbox.xml");
if (mSkin)
mPadding = mSkin->getPadding();
adjustSize();
}
ListBox::~ListBox()
{
if (gui)
gui->removeDragged(this);
if (Theme::instance())
Theme::instance()->unload(mSkin);
}
void ListBox::updateAlpha()
{
const float alpha = std::max(Client::getGuiAlpha(),
Theme::instance()->getMinimumOpacity());
if (mAlpha != alpha)
mAlpha = alpha;
}
void ListBox::draw(gcn::Graphics *graphics)
{
if (!mListModel)
return;
BLOCK_START("ListBox::draw")
updateAlpha();
Graphics *const g = static_cast<Graphics*>(graphics);
mHighlightColor.a = static_cast<int>(mAlpha * 255.0f);
graphics->setColor(mHighlightColor);
gcn::Font *const font = getFont();
const int rowHeight = getRowHeight();
// Draw filled rectangle around the selected list element
if (mSelected >= 0)
{
graphics->fillRectangle(gcn::Rectangle(mPadding,
rowHeight * mSelected + mPadding,
mDimension.width - 2 * mPadding, rowHeight));
}
const int sel = getSelected();
if (sel >= 0)
{
g->setColorAll(mForegroundSelectedColor,
mForegroundSelectedColor2);
font->drawString(graphics, mListModel->getElementAt(sel),
mPadding, sel * rowHeight + mPadding);
}
// Draw the list elements
g->setColorAll(mForegroundColor, mForegroundColor2);
const int sz = mListModel->getNumberOfElements();
for (int i = 0, y = mPadding; i < sz; ++i, y += rowHeight)
{
if (i != sel)
{
font->drawString(graphics, mListModel->getElementAt(i),
mPadding, y);
}
}
BLOCK_END("ListBox::draw")
}
void ListBox::keyPressed(gcn::KeyEvent &keyEvent)
{
const int action = static_cast<KeyEvent*>(&keyEvent)->getActionId();
if (action == Input::KEY_GUI_SELECT)
{
distributeActionEvent();
keyEvent.consume();
}
else if (action == Input::KEY_GUI_UP)
{
if (mSelected > 0)
setSelected(mSelected - 1);
else if (mSelected == 0 && mWrappingEnabled && getListModel())
setSelected(getListModel()->getNumberOfElements() - 1);
keyEvent.consume();
}
else if (action == Input::KEY_GUI_DOWN)
{
const int num = getListModel()->getNumberOfElements() - 1;
if (mSelected < num)
setSelected(mSelected + 1);
else if (mSelected == num && mWrappingEnabled)
setSelected(0);
keyEvent.consume();
}
else if (action == Input::KEY_GUI_HOME)
{
setSelected(0);
keyEvent.consume();
}
else if (action == Input::KEY_GUI_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::mousePressed(gcn::MouseEvent &event)
{
if (mDistributeMousePressed)
{
mousePressed1(event);
}
else
{
switch (event.getClickCount())
{
case 1:
mouseDragged(event);
mOldSelected = mSelected;
break;
case 2:
if (gui)
gui->resetClickCount();
if (mOldSelected == mSelected)
mousePressed1(event);
else
mouseDragged(event);
mOldSelected = mSelected;
break;
default:
mouseDragged(event);
mOldSelected = mSelected;
break;
}
}
}
void ListBox::mousePressed1(gcn::MouseEvent &mouseEvent)
{
if (mouseEvent.getButton() == gcn::MouseEvent::LEFT)
{
setSelected(std::max(0, getSelectionByMouse(mouseEvent.getY())));
distributeActionEvent();
}
}
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
if (getRowHeight())
setSelected(std::max(0, getSelectionByMouse(event.getY())));
}
void ListBox::refocus()
{
if (!mFocusHandler)
return;
if (isFocusable())
mFocusHandler->requestFocus(this);
}
void ListBox::adjustSize()
{
BLOCK_START("ListBox::adjustSize")
if (mListModel)
{
setHeight(getRowHeight() * mListModel->getNumberOfElements()
+ 2 * mPadding);
}
BLOCK_END("ListBox::adjustSize")
}
void ListBox::logic()
{
adjustSize();
}
int ListBox::getSelectionByMouse(const int y) const
{
return (y - mPadding) / getRowHeight();
}
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