--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/guichan-0.8.1/src/widgets/slider.cpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,369 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén 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/slider.hpp"
+
+#include "guichan/graphics.hpp"
+#include "guichan/key.hpp"
+#include "guichan/mouseinput.hpp"
+
+namespace gcn
+{
+    Slider::Slider(double scaleEnd)
+    {
+        mDragged = false;
+
+        mScaleStart = 0;
+        mScaleEnd = scaleEnd;
+
+        setFocusable(true);
+        setFrameSize(1);
+        setOrientation(HORIZONTAL);
+        setValue(0);
+        setStepLength(scaleEnd / 10);
+        setMarkerLength(10);
+
+        addMouseListener(this);
+        addKeyListener(this);
+    }
+
+    Slider::Slider(double scaleStart, double scaleEnd)
+    {
+        mDragged = false;
+
+        mScaleStart = scaleStart;
+        mScaleEnd = scaleEnd;
+
+        setFocusable(true);
+        setFrameSize(1);
+        setOrientation(HORIZONTAL);
+        setValue(scaleStart);
+        setStepLength((scaleEnd  - scaleStart)/ 10);
+        setMarkerLength(10);
+
+        addMouseListener(this);
+        addKeyListener(this);
+    }
+
+    void Slider::setScale(double scaleStart, double scaleEnd)
+    {
+        mScaleStart = scaleStart;
+        mScaleEnd = scaleEnd;
+    }
+
+    double Slider::getScaleStart() const
+    {
+        return mScaleStart;
+    }
+
+    void Slider::setScaleStart(double scaleStart)
+    {
+        mScaleStart = scaleStart;
+    }
+
+    double Slider::getScaleEnd() const
+    {
+        return mScaleEnd;
+    }
+
+    void Slider::setScaleEnd(double scaleEnd)
+    {
+        mScaleEnd = scaleEnd;
+    }
+
+    void Slider::draw(gcn::Graphics* graphics)
+    {
+        Color shadowColor = getBaseColor() - 0x101010;
+        int alpha = getBaseColor().a;
+         shadowColor.a = alpha;
+
+        graphics->setColor(shadowColor);
+        graphics->fillRectangle(gcn::Rectangle(0,0,getWidth(),getHeight()));
+
+        drawMarker(graphics);
+    }
+
+    void Slider::drawMarker(gcn::Graphics* graphics)
+    {
+        gcn::Color faceColor = getBaseColor();
+        Color highlightColor, shadowColor;
+        int alpha = getBaseColor().a;
+        highlightColor = faceColor + 0x303030;
+        highlightColor.a = alpha;
+        shadowColor = faceColor - 0x303030;
+        shadowColor.a = alpha;
+
+        graphics->setColor(faceColor);
+
+        if (getOrientation() == HORIZONTAL)
+        {
+            int v = getMarkerPosition();
+            graphics->fillRectangle(gcn::Rectangle(v + 1, 1, getMarkerLength() - 2, getHeight() - 2));
+            graphics->setColor(highlightColor);
+            graphics->drawLine(v, 0, v + getMarkerLength() - 1,0);
+            graphics->drawLine(v, 0, v, getHeight() - 1);
+            graphics->setColor(shadowColor);
+            graphics->drawLine(v + getMarkerLength() - 1, 1, v + getMarkerLength() - 1, getHeight() - 1);
+            graphics->drawLine(v + 1, getHeight() - 1, v + getMarkerLength() - 1, getHeight() - 1);
+
+            if (isFocused())
+            {
+                graphics->setColor(getForegroundColor());
+                graphics->drawRectangle(Rectangle(v + 2, 2, getMarkerLength() - 4, getHeight() - 4));
+            }
+        }
+        else
+        {
+            int v = (getHeight() - getMarkerLength()) - getMarkerPosition();
+            graphics->fillRectangle(gcn::Rectangle(1, v + 1, getWidth() - 2, getMarkerLength() - 2));
+            graphics->setColor(highlightColor);
+            graphics->drawLine(0, v, 0, v + getMarkerLength() - 1);
+            graphics->drawLine(0, v, getWidth() - 1, v);
+            graphics->setColor(shadowColor);
+            graphics->drawLine(1, v + getMarkerLength() - 1, getWidth() - 1, v + getMarkerLength() - 1);
+            graphics->drawLine(getWidth() - 1, v + 1, getWidth() - 1, v + getMarkerLength() - 1);
+
+            if (isFocused())
+            {
+                graphics->setColor(getForegroundColor());
+                graphics->drawRectangle(Rectangle(2, v + 2, getWidth() - 4, getMarkerLength() - 4));
+            }
+        }
+    }
+
+    void Slider::mousePressed(MouseEvent& mouseEvent)
+    {
+        if (mouseEvent.getButton() == gcn::MouseEvent::LEFT
+            && mouseEvent.getX() >= 0
+            && mouseEvent.getX() <= getWidth()
+            && mouseEvent.getY() >= 0
+            && mouseEvent.getY() <= getHeight())
+        {
+            if (getOrientation() == HORIZONTAL)
+            {
+                setValue(markerPositionToValue(mouseEvent.getX() - getMarkerLength() / 2));
+            }
+            else
+            {
+                setValue(markerPositionToValue(getHeight() - mouseEvent.getY() - getMarkerLength() / 2));
+            }
+
+            distributeActionEvent();
+        }
+    }
+
+    void Slider::mouseDragged(MouseEvent& mouseEvent)
+    {
+        if (getOrientation() == HORIZONTAL)
+        {
+            setValue(markerPositionToValue(mouseEvent.getX() - getMarkerLength() / 2));
+        }
+        else
+        {
+            setValue(markerPositionToValue(getHeight() - mouseEvent.getY() - getMarkerLength() / 2));
+        }
+
+        distributeActionEvent();
+
+        mouseEvent.consume();
+    }
+
+    void Slider::setValue(double value)
+    {
+        if (value > getScaleEnd())
+        {
+            mValue = getScaleEnd();
+            return;
+        }
+
+        if (value < getScaleStart())
+        {
+            mValue = getScaleStart();
+            return;
+        }
+
+        mValue = value;
+    }
+
+    double Slider::getValue() const
+    {
+        return mValue;
+    }
+
+    int Slider::getMarkerLength() const
+    {
+        return mMarkerLength;
+    }
+
+    void Slider::setMarkerLength(int length)
+    {
+        mMarkerLength = length;
+    }
+
+    void Slider::keyPressed(KeyEvent& keyEvent)
+    {
+        Key key = keyEvent.getKey();
+
+        if (getOrientation() == HORIZONTAL)
+        {
+            if (key.getValue() == Key::RIGHT)
+            {
+                setValue(getValue() + getStepLength());
+                distributeActionEvent();
+                keyEvent.consume();
+            }
+            else if (key.getValue() == Key::LEFT)
+            {
+                setValue(getValue() - getStepLength());
+                distributeActionEvent();
+                keyEvent.consume();
+            }            
+        }
+        else
+        {
+            if (key.getValue() == Key::UP)
+            {
+                setValue(getValue() + getStepLength());
+                distributeActionEvent();
+                keyEvent.consume();
+            }
+            else if (key.getValue() == Key::DOWN)
+            {
+                setValue(getValue() - getStepLength());
+                distributeActionEvent();
+                keyEvent.consume();
+            }
+        }
+    }
+
+    void Slider::setOrientation(Slider::Orientation orientation)
+    {
+        mOrientation = orientation;
+    }
+
+    Slider::Orientation Slider::getOrientation() const
+    {
+        return mOrientation;
+    }
+
+    double Slider::markerPositionToValue(int v) const
+    {
+        int w;
+        if (getOrientation() == HORIZONTAL)
+        {
+            w = getWidth();
+        }
+        else
+        {
+            w = getHeight();
+        }
+
+        double pos = v / ((double)w - getMarkerLength());
+        return (1.0 - pos) * getScaleStart() + pos * getScaleEnd();
+
+    }
+
+    int Slider::valueToMarkerPosition(double value) const
+    {
+        int v;
+        if (getOrientation() == HORIZONTAL)
+        {
+            v = getWidth();
+        }
+        else
+        {
+            v = getHeight();
+        }
+
+        int w =  (int)((v - getMarkerLength())
+                       * (value  - getScaleStart())
+                       / (getScaleEnd() - getScaleStart()));
+
+        if (w < 0)
+        {
+            return 0;
+        }
+
+        if (w > v - getMarkerLength())
+        {
+            return v - getMarkerLength();
+        }
+
+        return w;
+    }
+
+    void Slider::setStepLength(double length)
+    {
+        mStepLength = length;
+    }
+
+    double Slider::getStepLength() const
+    {
+        return mStepLength;
+    }
+
+    int Slider::getMarkerPosition() const
+    {
+        return valueToMarkerPosition(getValue());
+    }
+
+    void Slider::mouseWheelMovedUp(MouseEvent& mouseEvent)
+    {
+        setValue(getValue() + getStepLength());
+        distributeActionEvent();
+
+        mouseEvent.consume();
+    }
+
+    void Slider::mouseWheelMovedDown(MouseEvent& mouseEvent)
+    {
+        setValue(getValue() - getStepLength());
+        distributeActionEvent();
+
+        mouseEvent.consume();
+    }
+}