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label.cpp

/*      _______   __   __   __   ______   __   __   _______   __   __
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 *
 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 *
 *                                                         Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
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/*
 * For comments regarding functions please see the header file.
 */

#include "guichan/widgets/label.hpp"

#include "guichan/exception.hpp"
#include "guichan/font.hpp"
#include "guichan/graphics.hpp"

namespace gcn
{
00069     Label::Label()
    {
        mAlignment = Graphics::LEFT;
    }

00074     Label::Label(const std::string& caption)
    {
        mCaption = caption;
        mAlignment = Graphics::LEFT;

        setWidth(getFont()->getWidth(caption));
        setHeight(getFont()->getHeight());
    }

00083     const std::string &Label::getCaption() const
    {
        return mCaption;
    }

00088     void Label::setCaption(const std::string& caption)
    {
        mCaption = caption;
    }

00093     void Label::setAlignment(unsigned int alignment)
    {
        mAlignment = alignment;
    }

00098     unsigned int Label::getAlignment()
    {
        return mAlignment;
    }

00103     void Label::draw(Graphics* graphics)
    {
        int textX;
        int textY = getHeight() / 2 - getFont()->getHeight() / 2;

        switch (getAlignment())
        {
          case Graphics::LEFT:
              textX = 0;
              break;
          case Graphics::CENTER:
              textX = getWidth() / 2;
              break;
          case Graphics::RIGHT:
              textX = getWidth();
              break;
          default:
              throw GCN_EXCEPTION("Unknown alignment.");
        }

        graphics->setFont(getFont());
        graphics->setColor(getForegroundColor());
        graphics->drawText(getCaption(), textX, textY, getAlignment());
    }

00128     void Label::drawBorder(Graphics* graphics)
    {
        Color faceColor = getBaseColor();
        Color highlightColor, shadowColor;
        int alpha = getBaseColor().a;
        int width = getWidth() + getBorderSize() * 2 - 1;
        int height = getHeight() + getBorderSize() * 2 - 1;
        highlightColor = faceColor + 0x303030;
        highlightColor.a = alpha;
        shadowColor = faceColor - 0x303030;
        shadowColor.a = alpha;

        unsigned int i;
        for (i = 0; i < getBorderSize(); ++i)
        {
            graphics->setColor(shadowColor);
            graphics->drawLine(i,i, width - i, i);
            graphics->drawLine(i,i + 1, i, height - i - 1);
            graphics->setColor(highlightColor);
            graphics->drawLine(width - i,i + 1, width - i, height - i);
            graphics->drawLine(i,height - i, width - i - 1, height - i);
        }
    }

00152     void Label::adjustSize()
    {
        setWidth(getFont()->getWidth(getCaption()));
        setHeight(getFont()->getHeight());
    }
}

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