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/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
* Copyright (C) 2011-2012 The ManaPlus Developers
*
*
* Per Larsson a.k.a finalman
* Olof Naess�n a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Guichan nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* For comments regarding functions please see the header file.
*/
#include "guichan/widgets/textfield.hpp"
#include "guichan/font.hpp"
#include "guichan/graphics.hpp"
#include "guichan/key.hpp"
#include "guichan/mouseinput.hpp"
#include "debug.h"
namespace gcn
{
TextField::TextField() :
Widget(),
MouseListener(),
KeyListener(),
mCaretPosition(0),
mXScroll(0)
{
setFocusable(true);
addMouseListener(this);
addKeyListener(this);
}
TextField::TextField(const std::string& text) :
Widget(),
MouseListener(),
KeyListener(),
mText(text),
mCaretPosition(0),
mXScroll(0)
{
adjustSize();
setFocusable(true);
addMouseListener(this);
addKeyListener(this);
}
void TextField::setText(const std::string& text)
{
if (text.size() < mCaretPosition)
mCaretPosition = static_cast<int>(text.size());
mText = text;
}
void TextField::drawCaret(Graphics* graphics, int x)
{
// Check the current clip area as a clip area with a different
// size than the widget might have been pushed (which is the
// case in the draw method when we push a clip area after we have
// drawn a border).
const Rectangle clipArea = graphics->getCurrentClipArea();
graphics->setColor(mForegroundColor);
graphics->drawLine(x, clipArea.height - 2, x, 1);
}
void TextField::mousePressed(MouseEvent& mouseEvent)
{
if (mouseEvent.getButton() == MouseEvent::LEFT)
{
mCaretPosition = getFont()->getStringIndexAt(
mText, mouseEvent.getX() + mXScroll);
fixScroll();
}
}
void TextField::mouseDragged(MouseEvent& mouseEvent)
{
mouseEvent.consume();
}
void TextField::adjustSize()
{
setWidth(getFont()->getWidth(mText) + 7);
adjustHeight();
fixScroll();
}
void TextField::adjustHeight()
{
setHeight(getFont()->getHeight() + 4);
}
void TextField::fixScroll()
{
if (isFocused())
{
const int caretX = getFont()->getWidth(
mText.substr(0, mCaretPosition));
if (caretX - mXScroll >= getWidth() - 4)
{
mXScroll = caretX - getWidth() + 4;
}
else if (caretX - mXScroll <= 0)
{
mXScroll = caretX - getWidth() / 2;
if (mXScroll < 0)
mXScroll = 0;
}
}
}
void TextField::setCaretPosition(unsigned int position)
{
if (position > mText.size())
mCaretPosition = static_cast<int>(mText.size());
else
mCaretPosition = position;
fixScroll();
}
unsigned int TextField::getCaretPosition() const
{
return mCaretPosition;
}
const std::string& TextField::getText() const
{
return mText;
}
void TextField::fontChanged()
{
fixScroll();
}
}
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