Ui.h

   1 /*
   2  * This file is part of NumptyPhysics
   3  * Copyright (C) 2008 Tim Edmonds
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 3 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  */
  16
  17 #ifndef UI_H
  18 #define UI_H
  19
  20 #include "Common.h"
  21
  22 #include <string>
  23 #include <SDL/SDL.h>
  24
  25 class Canvas;
  26 class Window;
  27 class Widget;
  28
  29 class WidgetParent
  30 {
  31  public:
  32   virtual void add( Widget* w )=0;
  33   virtual void remove( Widget* w )=0;
  34 };
  35
  36 class Widget
  37 {
  38  public:
  39   virtual ~Widget() {}
  40   virtual bool isDirty() {return false;}
  41   virtual Rect dirtyArea() {return Rect();};
  42   virtual void onTick( int tick ) {}
  43   virtual void draw( Canvas& screen, const Rect& area ) {};
  44   virtual bool handleEvent( SDL_Event& ev ) {return false;};
  45   virtual Window* getWindow() {return NULL;}
  46   void setParent(WidgetParent* p) {m_parent = p;}
  47   WidgetParent* parent() { return m_parent; }
  48  protected:
  49   WidgetParent* m_parent;
  50   Rect          m_pos;
  51 };
  52
  53 class Label : public Widget
  54 {
  55  public:
  56   Label();
  57   void text( std::string& s );
  58   void align( int a );
  59  private:
  60
  61 };
  62
  63 class Button : public Widget
  64 {
  65  public:
  66   Button();
  67 };
  68
  69 class Container : public Widget, public WidgetParent
  70 {
  71  public:
  72   Container();
  73
  74   virtual bool isDirty();
  75   virtual Rect dirtyArea();
  76   virtual void onTick( int tick );
  77   virtual void draw( Canvas& screen, const Rect& area );
  78   virtual bool handleEvent( SDL_Event& ev );
  79
  80   void add( Widget* w );
  81   virtual void remove( Widget* w );
  82 };
  83
  84
  85 class Layer : public Widget
  86 {
  87  public:
  88   virtual void onShow() {}
  89   virtual void onHide() {}
  90 };
  91
  92
  93 #endif //UI_H