label.cpp

00001 /*      _______   __   __   __   ______   __   __   _______   __   __
00002  *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
00003  *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
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00007  * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
00008  *
00009  * Copyright (c) 2004, 2005, 2006 Olof Naessén and Per Larsson
00010  *
00011  *                                                         Js_./
00012  * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
00013  * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
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00056 
00057 /*
00058  * For comments regarding functions please see the header file.
00059  */
00060 
00061 #include "guichan/widgets/label.hpp"
00062 
00063 #include "guichan/exception.hpp"
00064 #include "guichan/font.hpp"
00065 #include "guichan/graphics.hpp"
00066 
00067 namespace gcn
00068 {
00069     Label::Label()
00070     {
00071         mAlignment = Graphics::LEFT;
00072     }
00073 
00074     Label::Label(const std::string& caption)
00075     {
00076         mCaption = caption;
00077         mAlignment = Graphics::LEFT;
00078 
00079         setWidth(getFont()->getWidth(caption));
00080         setHeight(getFont()->getHeight());
00081     }
00082 
00083     const std::string &Label::getCaption() const
00084     {
00085         return mCaption;
00086     }
00087 
00088     void Label::setCaption(const std::string& caption)
00089     {
00090         mCaption = caption;
00091     }
00092 
00093     void Label::setAlignment(unsigned int alignment)
00094     {
00095         mAlignment = alignment;
00096     }
00097 
00098     unsigned int Label::getAlignment()
00099     {
00100         return mAlignment;
00101     }
00102 
00103     void Label::draw(Graphics* graphics)
00104     {
00105         int textX;
00106         int textY = getHeight() / 2 - getFont()->getHeight() / 2;
00107 
00108         switch (getAlignment())
00109         {
00110           case Graphics::LEFT:
00111               textX = 0;
00112               break;
00113           case Graphics::CENTER:
00114               textX = getWidth() / 2;
00115               break;
00116           case Graphics::RIGHT:
00117               textX = getWidth();
00118               break;
00119           default:
00120               throw GCN_EXCEPTION("Unknown alignment.");
00121         }
00122 
00123         graphics->setFont(getFont());
00124         graphics->setColor(getForegroundColor());
00125         graphics->drawText(getCaption(), textX, textY, getAlignment());
00126     }
00127 
00128     void Label::drawBorder(Graphics* graphics)
00129     {
00130         Color faceColor = getBaseColor();
00131         Color highlightColor, shadowColor;
00132         int alpha = getBaseColor().a;
00133         int width = getWidth() + getBorderSize() * 2 - 1;
00134         int height = getHeight() + getBorderSize() * 2 - 1;
00135         highlightColor = faceColor + 0x303030;
00136         highlightColor.a = alpha;
00137         shadowColor = faceColor - 0x303030;
00138         shadowColor.a = alpha;
00139 
00140         unsigned int i;
00141         for (i = 0; i < getBorderSize(); ++i)
00142         {
00143             graphics->setColor(shadowColor);
00144             graphics->drawLine(i,i, width - i, i);
00145             graphics->drawLine(i,i + 1, i, height - i - 1);
00146             graphics->setColor(highlightColor);
00147             graphics->drawLine(width - i,i + 1, width - i, height - i);
00148             graphics->drawLine(i,height - i, width - i - 1, height - i);
00149         }
00150     }
00151 
00152     void Label::adjustSize()
00153     {
00154         setWidth(getFont()->getWidth(getCaption()));
00155         setHeight(getFont()->getHeight());
00156     }
00157 }

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