Add const to more classes.

32 files changed, 123 insertions, 122 deletions

diff --git a/src/guichan/cliprectangle.cpp b/src/guichan/cliprectangle.cpp
index e05736870..285cbbe81 100644
--- a/src/guichan/cliprectangle.cpp
+++ b/src/guichan/cliprectangle.cpp
@@ -62,8 +62,9 @@ namespace gcn
         height = 0;
     }
 
-    ClipRectangle::ClipRectangle(int x0, int y0, int width0, int height0,
-                                 int xOffset0, int yOffset0) :
+    ClipRectangle::ClipRectangle(const int x0, const int y0,
+                                 const int width0, const int height0,
+                                 const int xOffset0, const int yOffset0) :
         xOffset(xOffset0),
         yOffset(yOffset0)
     {
diff --git a/src/guichan/color.cpp b/src/guichan/color.cpp
index f58e7b58e..7cc3b887a 100644
--- a/src/guichan/color.cpp
+++ b/src/guichan/color.cpp
@@ -60,7 +60,7 @@ namespace gcn
     {
     }
 
-    Color::Color(int color) :
+    Color::Color(const int color) :
         r((color >> 16) & 0xFF),
         g((color >>  8) & 0xFF),
         b(color         & 0xFF),
@@ -68,7 +68,7 @@ namespace gcn
     {
     }
 
-    Color::Color(int ar, int ag, int ab, int aa) :
+    Color::Color(const int ar, const int ag, const int ab, const int aa) :
         r(ar),
         g(ag),
         b(ab),
@@ -104,7 +104,7 @@ namespace gcn
         return result;
     }
 
-    Color Color::operator*(float value) const
+    Color Color::operator*(const float value) const
     {
         Color result(static_cast<int>(r * value), 
                      static_cast<int>(g * value), 
diff --git a/src/guichan/event.cpp b/src/guichan/event.cpp
index 5983af7e7..24c913880 100644
--- a/src/guichan/event.cpp
+++ b/src/guichan/event.cpp
@@ -52,8 +52,8 @@
 
 namespace gcn
 {
-    Event::Event(Widget* source)
-            :mSource(source)
+    Event::Event(Widget *const source) :
+        mSource(source)
     {
 
     }
diff --git a/src/guichan/exception.cpp b/src/guichan/exception.cpp
index 4ea86896e..75eaac2e9 100644
--- a/src/guichan/exception.cpp
+++ b/src/guichan/exception.cpp
@@ -73,7 +73,7 @@ namespace gcn
     Exception::Exception(const std::string& message,
                          const std::string& function,
                          const std::string& filename,
-                         unsigned int line)
+                         const unsigned int line)
                          : mFunction(function),
                            mMessage(message),
                            mFilename(filename),
diff --git a/src/guichan/include/guichan/cliprectangle.hpp b/src/guichan/include/guichan/cliprectangle.hpp
index ea44ac680..886153549 100644
--- a/src/guichan/include/guichan/cliprectangle.hpp
+++ b/src/guichan/include/guichan/cliprectangle.hpp
@@ -79,12 +79,12 @@ namespace gcn
          *                 calculating the actual screen coordinate from
          *                 the relative screen coordinate.
          */
-        ClipRectangle(int x0,
-                      int y0,
-                      int width0,
-                      int height0,
-                      int xOffset0,
-                      int yOffset0);
+        ClipRectangle(const int x0,
+                      const int y0,
+                      const int width0,
+                      const int height0,
+                      const int xOffset0,
+                      const int yOffset0);
 
         /**
          * Copy constructor. Copies x, y, width and height 
diff --git a/src/guichan/include/guichan/color.hpp b/src/guichan/include/guichan/color.hpp
index 6f0cfc1ff..795cdc12d 100644
--- a/src/guichan/include/guichan/color.hpp
+++ b/src/guichan/include/guichan/color.hpp
@@ -75,7 +75,7 @@ namespace gcn
          *
          * @param color The color to initialise the object with.
          */
-        Color(int color);
+        Color(const int color);
 
         /**
          * Constructor. The default alpha value is 255.
@@ -86,7 +86,7 @@ namespace gcn
          * @param a Alpha, used for transparency. A value of 0 means
          *          totaly transparent, 255 is totaly opaque.
          */
-        Color(int r, int g, int b, int a = 255);
+        Color(const int r, const int g, const int b, const int a = 255);
 
         /**
          * Adds the RGB values of two colors together. The values will be
@@ -121,7 +121,7 @@ namespace gcn
          *         the add and subtract operations, be multiplied as
          *         well.
          */
-        Color operator*(float value) const;
+        Color operator*(const float value) const;
 
         /**
          * Compares two colors.
diff --git a/src/guichan/include/guichan/event.hpp b/src/guichan/include/guichan/event.hpp
index 3a4ad26e2..1b52df8ed 100644
--- a/src/guichan/include/guichan/event.hpp
+++ b/src/guichan/include/guichan/event.hpp
@@ -67,7 +67,7 @@ namespace gcn
          *
          * @param source The source widget of the event.
          */
-        Event(Widget* source);
+        Event(Widget *const source);
 
         /**
          * Destructor.
diff --git a/src/guichan/include/guichan/exception.hpp b/src/guichan/include/guichan/exception.hpp
index 1b591f2d6..e2dd958be 100644
--- a/src/guichan/include/guichan/exception.hpp
+++ b/src/guichan/include/guichan/exception.hpp
@@ -115,7 +115,7 @@ namespace gcn
         Exception(const std::string& message,
                   const std::string& function,
                   const std::string& filename,
-                  unsigned int line);
+                  const unsigned int line);
 
         /**
          * Gets the function name where the exception occured.
diff --git a/src/guichan/include/guichan/inputevent.hpp b/src/guichan/include/guichan/inputevent.hpp
index 1de9d1832..296f14cd2 100644
--- a/src/guichan/include/guichan/inputevent.hpp
+++ b/src/guichan/include/guichan/inputevent.hpp
@@ -69,11 +69,11 @@ namespace gcn
          * @param isAltPressed True if alt is pressed, false otherwise.
          * @param isMetaPressed True if meta is pressed, false otherwise.
          */
-        InputEvent(Widget* source,
-                   bool shiftPressed,
-                   bool controlPressed,
-                   bool altPressed,
-                   bool metaPressed);
+        InputEvent(Widget *const source,
+                   const bool shiftPressed,
+                   const bool controlPressed,
+                   const bool altPressed,
+                   const bool metaPressed);
 
         /**
          * Checks if shift is pressed.
diff --git a/src/guichan/include/guichan/key.hpp b/src/guichan/include/guichan/key.hpp
index b852638b3..9b31d7c6b 100644
--- a/src/guichan/include/guichan/key.hpp
+++ b/src/guichan/include/guichan/key.hpp
@@ -68,7 +68,7 @@ namespace gcn
          *
          * @param value The ascii or enum value for the key.
          */
-        Key(int value = 0);
+        Key(const int value = 0);
 
         /**
          * Checks if a key is a character.
diff --git a/src/guichan/include/guichan/keyevent.hpp b/src/guichan/include/guichan/keyevent.hpp
index e841f4a62..5cf1d26c7 100644
--- a/src/guichan/include/guichan/keyevent.hpp
+++ b/src/guichan/include/guichan/keyevent.hpp
@@ -81,13 +81,13 @@ namespace gcn
          *                     false otherwise.
          * @param key The key of the event.
          */
-        KeyEvent(Widget* source,
-                 bool shiftPressed,
-                 bool controlPressed,
-                 bool altPressed,
-                 bool metaPressed,
-                 unsigned int type,
-                 bool numericPad,
+        KeyEvent(Widget *const source,
+                 const bool shiftPressed,
+                 const bool controlPressed,
+                 const bool altPressed,
+                 const bool metaPressed,
+                 const unsigned int type,
+                 const bool numericPad,
                  const Key& key);
 
         /**
diff --git a/src/guichan/include/guichan/mouseevent.hpp b/src/guichan/include/guichan/mouseevent.hpp
index 5b012dc20..ba2200d8d 100644
--- a/src/guichan/include/guichan/mouseevent.hpp
+++ b/src/guichan/include/guichan/mouseevent.hpp
@@ -78,16 +78,16 @@ namespace gcn
          * @param clickCount The number of clicks generated with the same button.
          *                   It's set to zero if another button is used.
          */
-        MouseEvent(Widget* source,
-                   bool shiftPressed,
-                   bool controlPressed,
-                   bool altPressed,
-                   bool metaPressed,
-                   unsigned int type,
-                   unsigned int button,
-                   int x,
-                   int y,
-                   int clickCount);
+        MouseEvent(Widget *const source,
+                   const bool shiftPressed,
+                   const bool controlPressed,
+                   const bool altPressed,
+                   const bool metaPressed,
+                   const unsigned int type,
+                   const unsigned int button,
+                   const int x,
+                   const int y,
+                   const int clickCount);
 
         /**
          * Gets the button of the mouse event.
diff --git a/src/guichan/include/guichan/mouseinput.hpp b/src/guichan/include/guichan/mouseinput.hpp
index 35952fde5..99ed1fad8 100644
--- a/src/guichan/include/guichan/mouseinput.hpp
+++ b/src/guichan/include/guichan/mouseinput.hpp
@@ -84,11 +84,11 @@ namespace gcn
          * @param timeStamp The timestamp of the mouse input. Used to
          *                  check for double clicks.
          */
-        MouseInput(unsigned int button,
-                   unsigned int type,
-                   int x,
-                   int y,
-                   int timeStamp);
+        MouseInput(const unsigned int button,
+                   const unsigned int type,
+                   const int x,
+                   const int y,
+                   const int timeStamp);
 
         /**
          * Sets the type of the mouse input.
diff --git a/src/guichan/include/guichan/rectangle.hpp b/src/guichan/include/guichan/rectangle.hpp
index 013fe9b69..a4de652a4 100644
--- a/src/guichan/include/guichan/rectangle.hpp
+++ b/src/guichan/include/guichan/rectangle.hpp
@@ -75,7 +75,7 @@ namespace gcn
          * @param height The height of the rectangle.
          * @since 0.1.0
          */
-        Rectangle(int x, int y, int width, int height);
+        Rectangle(const int x, const int y, const int width, const int height);
 
         /**
          * Sets the dimension of a rectangle.
diff --git a/src/guichan/include/guichan/sdl/sdlimage.hpp b/src/guichan/include/guichan/sdl/sdlimage.hpp
index cd4285346..52fb9976b 100644
--- a/src/guichan/include/guichan/sdl/sdlimage.hpp
+++ b/src/guichan/include/guichan/sdl/sdlimage.hpp
@@ -70,7 +70,7 @@ namespace gcn
          * @param surface the surface from which to load.
          * @param autoFree true if the surface should automatically be deleted.
          */
-        SDLImage(SDL_Surface* surface, bool autoFree);
+        SDLImage(SDL_Surface *const surface, const bool autoFree);
 
         /**
          * Destructor.
diff --git a/src/guichan/include/guichan/selectionevent.hpp b/src/guichan/include/guichan/selectionevent.hpp
index 331ebe92d..53efc93f5 100644
--- a/src/guichan/include/guichan/selectionevent.hpp
+++ b/src/guichan/include/guichan/selectionevent.hpp
@@ -67,7 +67,7 @@ namespace gcn
          *
          * @param source source The widget of the selection event.
          */
-        SelectionEvent(Widget* source);
+        SelectionEvent(Widget *const source);
 
         /**
          * Destructor.
diff --git a/src/guichan/include/guichan/widgets/dropdown.hpp b/src/guichan/include/guichan/widgets/dropdown.hpp
index 7663a265f..6c6ffb4c5 100644
--- a/src/guichan/include/guichan/widgets/dropdown.hpp
+++ b/src/guichan/include/guichan/widgets/dropdown.hpp
@@ -95,9 +95,9 @@ namespace gcn
          * @param listBox the listBox to use.
          * @see ListModel, ScrollArea, ListBox.
          */
-        DropDown(ListModel *listModel = nullptr,
-                 ScrollArea *scrollArea = nullptr,
-                 ListBox *listBox = nullptr);
+        DropDown(ListModel *const listModel = nullptr,
+                 ScrollArea *const scrollArea = nullptr,
+                 ListBox *const listBox = nullptr);
 
         /**
          * Destructor.
diff --git a/src/guichan/include/guichan/widgets/icon.hpp b/src/guichan/include/guichan/widgets/icon.hpp
index e25a7a770..ed010c31a 100644
--- a/src/guichan/include/guichan/widgets/icon.hpp
+++ b/src/guichan/include/guichan/widgets/icon.hpp
@@ -74,7 +74,7 @@ namespace gcn
          *
          * @param image The image to display.
          */
-        Icon(const Image* image);
+        Icon(const Image *const image);
 
         /**
          * Descructor.
diff --git a/src/guichan/include/guichan/widgets/scrollarea.hpp b/src/guichan/include/guichan/widgets/scrollarea.hpp
index 4937bcbea..84649d530 100644
--- a/src/guichan/include/guichan/widgets/scrollarea.hpp
+++ b/src/guichan/include/guichan/widgets/scrollarea.hpp
@@ -90,7 +90,7 @@ namespace gcn
          *
          * @param content The content of the scroll area.
          */
-        ScrollArea(Widget *content);
+        ScrollArea(Widget *const content);
 
         /**
          * Constructor.
diff --git a/src/guichan/include/guichan/widgets/slider.hpp b/src/guichan/include/guichan/widgets/slider.hpp
index a22c36844..bf2ce5937 100644
--- a/src/guichan/include/guichan/widgets/slider.hpp
+++ b/src/guichan/include/guichan/widgets/slider.hpp
@@ -81,7 +81,7 @@ namespace gcn
          *
          * @param scaleEnd The end value of the slider scale.
          */
-        Slider(double scaleEnd = 1.0);
+        Slider(const double scaleEnd = 1.0);
 
         /**
          * Constructor.
@@ -89,7 +89,7 @@ namespace gcn
          * @param scaleStart The start value of the slider scale.
          * @param scaleEnd The end value of the slider scale.
          */
-        Slider(double scaleStart, double scaleEnd);
+        Slider(const double scaleStart, const double scaleEnd);
 
         /**
          * Destructor.
diff --git a/src/guichan/inputevent.cpp b/src/guichan/inputevent.cpp
index 53ae91442..4b0bec69d 100644
--- a/src/guichan/inputevent.cpp
+++ b/src/guichan/inputevent.cpp
@@ -52,11 +52,11 @@
 
 namespace gcn
 {
-    InputEvent::InputEvent(Widget* source,
-                           bool shiftPressed,
-                           bool controlPressed,
-                           bool altPressed,
-                           bool metaPressed)
+    InputEvent::InputEvent(Widget *const source,
+                           const bool shiftPressed,
+                           const bool controlPressed,
+                           const bool altPressed,
+                           const bool metaPressed)
             :Event(source),
              mShiftPressed(shiftPressed),
              mControlPressed(controlPressed),
diff --git a/src/guichan/key.cpp b/src/guichan/key.cpp
index d2913837e..4c6bfde80 100644
--- a/src/guichan/key.cpp
+++ b/src/guichan/key.cpp
@@ -52,7 +52,7 @@
 
 namespace gcn
 {
-    Key::Key(int value) :
+    Key::Key(const int value) :
         mValue(value)
     {
     }
diff --git a/src/guichan/keyevent.cpp b/src/guichan/keyevent.cpp
index 2b7064dc7..003b288dc 100644
--- a/src/guichan/keyevent.cpp
+++ b/src/guichan/keyevent.cpp
@@ -52,22 +52,22 @@
 
 namespace gcn
 {
-    KeyEvent::KeyEvent(Widget* source,
-                       bool shiftPressed,
-                       bool controlPressed,
-                       bool altPressed,
-                       bool metaPressed,
-                       unsigned int type,
-                       bool numericPad,
-                       const Key& key)
-            :InputEvent(source,
-                        shiftPressed,
-                        controlPressed,
-                        altPressed,
-                        metaPressed),
-             mType(type),
-             mIsNumericPad(numericPad),
-             mKey(key)
+    KeyEvent::KeyEvent(Widget *const source,
+                       const bool shiftPressed,
+                       const bool controlPressed,
+                       const bool altPressed,
+                       const bool metaPressed,
+                       const unsigned int type,
+                       const bool numericPad,
+                       const Key& key) :
+        InputEvent(source,
+                   shiftPressed,
+                   controlPressed,
+                   altPressed,
+                   metaPressed),
+        mType(type),
+        mIsNumericPad(numericPad),
+        mKey(key)
     {
 
     }
diff --git a/src/guichan/mouseevent.cpp b/src/guichan/mouseevent.cpp
index 2e5c757c5..7f386b0a6 100644
--- a/src/guichan/mouseevent.cpp
+++ b/src/guichan/mouseevent.cpp
@@ -52,28 +52,27 @@
 
 namespace gcn
 {
-    MouseEvent::MouseEvent(Widget* source,
-                           bool shiftPressed,
-                           bool controlPressed,
-                           bool altPressed,
-                           bool metaPressed,
-                           unsigned int type,
-                           unsigned int button,
-                           int x,
-                           int y,
-                           int clickCount)
-            :InputEvent(source,
-                        shiftPressed,
-                        controlPressed,
-                        altPressed,
-                        metaPressed),
-             mType(type),
-             mButton(button),
-             mX(x),
-             mY(y),
-             mClickCount(clickCount)
+    MouseEvent::MouseEvent(Widget *const source,
+                           const bool shiftPressed,
+                           const bool controlPressed,
+                           const bool altPressed,
+                           const bool metaPressed,
+                           const unsigned int type,
+                           const unsigned int button,
+                           const int x,
+                           const int y,
+                           const int clickCount) :
+        InputEvent(source,
+                   shiftPressed,
+                   controlPressed,
+                   altPressed,
+                   metaPressed),
+        mType(type),
+        mButton(button),
+        mX(x),
+        mY(y),
+        mClickCount(clickCount)
     {
-
     }
 
     unsigned int MouseEvent::getButton() const
diff --git a/src/guichan/mouseinput.cpp b/src/guichan/mouseinput.cpp
index 791c8d7e9..f3b0fe511 100644
--- a/src/guichan/mouseinput.cpp
+++ b/src/guichan/mouseinput.cpp
@@ -52,16 +52,16 @@
 
 namespace gcn
 {
-    MouseInput::MouseInput(unsigned int button,
-                           unsigned int type,
-                           int x,
-                           int y,
-                           int timeStamp)
-            : mType(type),
-              mButton(button),
-              mTimeStamp(timeStamp),
-              mX(x),
-              mY(y)
+    MouseInput::MouseInput(const unsigned int button,
+                           const unsigned int type,
+                           const int x,
+                           const int y,
+                           const int timeStamp) :
+        mType(type),
+        mButton(button),
+        mTimeStamp(timeStamp),
+        mX(x),
+        mY(y)
     {
     }
 
diff --git a/src/guichan/rectangle.cpp b/src/guichan/rectangle.cpp
index 0a6ed2908..eb87bff50 100644
--- a/src/guichan/rectangle.cpp
+++ b/src/guichan/rectangle.cpp
@@ -60,8 +60,9 @@ namespace gcn
     {
     }
 
-    Rectangle::Rectangle(int x_, int y_, int width_, int height_)
-      : x(x_),
+    Rectangle::Rectangle(const int x_, const int y_,
+                         const int width_, const int height_) :
+        x(x_),
         y(y_),
         width(width_),
         height(height_)
diff --git a/src/guichan/sdl/sdlimage.cpp b/src/guichan/sdl/sdlimage.cpp
index 5bb7041ff..3c0325280 100644
--- a/src/guichan/sdl/sdlimage.cpp
+++ b/src/guichan/sdl/sdlimage.cpp
@@ -55,7 +55,7 @@
 
 namespace gcn
 {
-    SDLImage::SDLImage(SDL_Surface* surface, bool autoFree) :
+    SDLImage::SDLImage(SDL_Surface *const surface, const bool autoFree) :
         mSurface(surface),
         mAutoFree(autoFree)
     {
diff --git a/src/guichan/selectionevent.cpp b/src/guichan/selectionevent.cpp
index 8c8a3f28f..59ba9e641 100644
--- a/src/guichan/selectionevent.cpp
+++ b/src/guichan/selectionevent.cpp
@@ -52,8 +52,8 @@
 
 namespace gcn
 {
-    SelectionEvent::SelectionEvent(Widget* source)
-            :Event(source)
+    SelectionEvent::SelectionEvent(Widget *const source) :
+        Event(source)
     {
 
     }
diff --git a/src/guichan/widgets/dropdown.cpp b/src/guichan/widgets/dropdown.cpp
index 0cd979adc..c446b869d 100644
--- a/src/guichan/widgets/dropdown.cpp
+++ b/src/guichan/widgets/dropdown.cpp
@@ -57,9 +57,9 @@
 
 namespace gcn
 {
-    DropDown::DropDown(ListModel *listModel,
-                       ScrollArea *scrollArea,
-                       ListBox *listBox)
+    DropDown::DropDown(ListModel *const listModel,
+                       ScrollArea *const scrollArea,
+                       ListBox *const listBox)
     {
         setWidth(100);
         setFocusable(true);
diff --git a/src/guichan/widgets/icon.cpp b/src/guichan/widgets/icon.cpp
index 26139716d..b0d277fbd 100644
--- a/src/guichan/widgets/icon.cpp
+++ b/src/guichan/widgets/icon.cpp
@@ -71,7 +71,7 @@ namespace gcn
                 mImage->getHeight());
     }
 
-    Icon::Icon(const Image* image) :
+    Icon::Icon(const Image *const image) :
         mImage(image),
         mInternalImage(false)
     {
diff --git a/src/guichan/widgets/scrollarea.cpp b/src/guichan/widgets/scrollarea.cpp
index 1251bc665..f8bd11334 100644
--- a/src/guichan/widgets/scrollarea.cpp
+++ b/src/guichan/widgets/scrollarea.cpp
@@ -80,7 +80,7 @@ namespace gcn
         addMouseListener(this);
     }
 
-    ScrollArea::ScrollArea(Widget *content) :
+    ScrollArea::ScrollArea(Widget *const content) :
         mVScroll(0),
         mHScroll(0),
         mScrollbarWidth(12),
diff --git a/src/guichan/widgets/slider.cpp b/src/guichan/widgets/slider.cpp
index ed14f525a..a9e9bed31 100644
--- a/src/guichan/widgets/slider.cpp
+++ b/src/guichan/widgets/slider.cpp
@@ -56,7 +56,7 @@
 
 namespace gcn
 {
-    Slider::Slider(double scaleEnd) :
+    Slider::Slider(const double scaleEnd) :
         mDragged(false),
         mScaleStart(0),
         mScaleEnd(scaleEnd)
@@ -72,7 +72,7 @@ namespace gcn
         addKeyListener(this);
     }
 
-    Slider::Slider(double scaleStart, double scaleEnd) :
+    Slider::Slider(const double scaleStart, const double scaleEnd) :
         mDragged(false),
         mScaleStart(scaleStart),
         mScaleEnd(scaleEnd)