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/*
* The Mana World
* Copyright (C) 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <guichan/font.hpp>
#include "palette.h"
#include "sdlinput.h"
#include "textfield.h"
#include "../configuration.h"
#include "../graphics.h"
#include "../resources/image.h"
#include "../resources/resourcemanager.h"
#include "../utils/dtor.h"
#undef DELETE //Win32 compatibility hack
int TextField::instances = 0;
float TextField::mAlpha = config.getValue("guialpha", 0.8);
ImageRect TextField::skin;
TextField::TextField(const std::string &text):
gcn::TextField(text),
mNumeric(false),
mListener(0)
{
setFrameSize(2);
if (instances == 0)
{
// Load the skin
ResourceManager *resman = ResourceManager::getInstance();
Image *textbox = resman->getImage("graphics/gui/deepbox.png");
int gridx[4] = {0, 3, 28, 31};
int gridy[4] = {0, 3, 28, 31};
int a = 0, x, y;
for (y = 0; y < 3; y++)
{
for (x = 0; x < 3; x++)
{
skin.grid[a] = textbox->getSubImage(
gridx[x], gridy[y],
gridx[x + 1] - gridx[x] + 1,
gridy[y + 1] - gridy[y] + 1);
skin.grid[a]->setAlpha(config.getValue("guialpha", 0.8));
a++;
}
}
textbox->decRef();
}
instances++;
}
TextField::~TextField()
{
instances--;
if (instances == 0)
for_each(skin.grid, skin.grid + 9, dtor<Image*>());
}
void TextField::draw(gcn::Graphics *graphics)
{
if (!isVisible())
return;
if (isFocused())
{
drawCaret(graphics,
getFont()->getWidth(mText.substr(0, mCaretPosition)) -
mXScroll);
}
graphics->setColor(guiPalette->getColor(Palette::TEXT));
graphics->setFont(getFont());
graphics->drawText(mText, 1 - mXScroll, 1);
if (config.getValue("guialpha", 0.8) != mAlpha)
{
mAlpha = config.getValue("guialpha", 0.8);
for (int a = 0; a < 9; a++)
skin.grid[a]->setAlpha(mAlpha);
}
}
void TextField::drawFrame(gcn::Graphics *graphics)
{
int w, h, bs;
bs = getFrameSize();
w = getWidth() + bs * 2;
h = getHeight() + bs * 2;
static_cast<Graphics*>(graphics)->drawImageRect(0, 0, w, h, skin);
}
void TextField::setNumeric(bool numeric)
{
mNumeric = numeric;
if (!numeric)
return;
const char *text = mText.c_str();
for (const char *textPtr = text; *textPtr; ++textPtr)
{
if (*textPtr < '0' || *textPtr > '9')
{
setText(mText.substr(0, textPtr - text));
return;
}
}
}
int TextField::getValue() const
{
if (!mNumeric)
return 0;
int value = atoi(mText.c_str());
if (value < mMinimum)
return mMinimum;
if (value > mMaximum)
return mMaximum;
return value;
}
void TextField::keyPressed(gcn::KeyEvent &keyEvent)
{
int val = keyEvent.getKey().getValue();
if (val >= 32)
{
int l;
if (val < 128) l = 1; // 0xxxxxxx
else if (val < 0x800) l = 2; // 110xxxxx 10xxxxxx
else if (val < 0x10000) l = 3; // 1110xxxx 10xxxxxx 10xxxxxx
else l = 4; // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
char buf[4];
for (int i = 0; i < l; ++i)
{
buf[i] = val >> (6 * (l - i - 1));
if (i > 0) buf[i] = (buf[i] & 63) | 128;
}
if (l > 1) buf[0] |= 255 << (8 - l);
mText.insert(mCaretPosition, std::string(buf, buf + l));
mCaretPosition += l;
}
/* In UTF-8, 10xxxxxx is only used for inner parts of characters. So skip
them when processing key presses. */
switch (val)
{
case Key::LEFT:
{
while (mCaretPosition > 0)
{
--mCaretPosition;
if ((mText[mCaretPosition] & 192) != 128)
break;
}
} break;
case Key::RIGHT:
{
unsigned sz = mText.size();
while (mCaretPosition < sz)
{
++mCaretPosition;
if (mCaretPosition == sz ||
(mText[mCaretPosition] & 192) != 128)
break;
}
} break;
case Key::DELETE:
{
unsigned sz = mText.size();
while (mCaretPosition < sz)
{
--sz;
mText.erase(mCaretPosition, 1);
if (mCaretPosition == sz ||
(mText[mCaretPosition] & 192) != 128)
break;
}
} break;
case Key::BACKSPACE:
{
while (mCaretPosition > 0)
{
--mCaretPosition;
int v = mText[mCaretPosition];
mText.erase(mCaretPosition, 1);
if ((v & 192) != 128) break;
}
} break;
case Key::ENTER:
distributeActionEvent();
break;
case Key::HOME:
mCaretPosition = 0;
break;
case Key::END:
mCaretPosition = mText.size();
break;
case Key::TAB:
return;
}
keyEvent.consume();
fixScroll();
}
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