src/piecepool.h

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #ifndef PIECEPOOL_H
  12 #define PIECEPOOL_H
  13
  14 #include <boost/shared_ptr.hpp>
  15 #include "clickablecanvas.h"
  16 #include "indexconverter.h"
  17 #include "namedsprite_utils.h"
  18 #include "pixmaploader.h"
  19
  20 class AnimationManager;
  21 class ChessBoard;
  22 class IColor;
  23
  24 /**
  25   * @class PiecePool <piecepool.h>
  26   * @brief The class representing a crazyhouse-like piece pool.
  27   *
  28   * PiecePool is a canvas item attached to a Board that keeps a
  29   * stack of pieces and lets you drop them on the board, notifying
  30   * the board.
  31   */
  32 class PiecePool : public ClickableCanvas
  33                 , private IndexConverter {
  34
  35 private:
  36   const IColor* m_pool;
  37
  38   /** displayed m_sprites */
  39   std::vector<NamedSprite>   m_sprites;
  40
  41   /** refrence board */
  42   ChessBoard* m_board;
  43
  44   /** true if flipped */
  45   bool m_flipped;
  46
  47   /** size if a square */
  48   int m_square_size;
  49
  50   /** the width of the pool (ie how many pieces) */
  51   int m_width;
  52
  53   /** loader class, to load pieces */
  54   PixmapLoader m_loader;
  55
  56   /** the piece that is being dragged, if any */
  57   NamedSprite m_dragged;
  58
  59   /** the index of the piece being dragged */
  60   int m_dragged_index;
  61
  62   AnimationManager* m_anim_manager;
  63
  64   /** internal function, resizes the grid vector to hold x pieces */
  65   void setFill(int x);
  66
  67   /** removes the drag putting it back together with his friends in the pool.
  68       if fadeOff is true the current drag will fade off while a new piece will
  69       fade in the pool, while if fadeOff is false the fade off is not done.
  70       fadeOff will typically be false if the piece sprite has been used in the
  71       board and we don't want a clone that is fading off */
  72   void cancelDragging(bool fadeOff = true);
  73
  74   /** takes the named sprite */
  75   NamedSprite takeSpriteAt(int i);
  76
  77   /** converts an index to the upper left point of the corresponding square */
  78   virtual QPoint toReal(int i) const;
  79
  80   /** finds to which index corresponds the point p, or -1 if corresponds to none */
  81   virtual int toLogical(const QPoint& p) const;
  82 public:
  83   friend class GraphicalSystem;
  84   friend class ChessTable;
  85
  86   /** Constructor, requires the board the pool will be attached to */
  87   PiecePool(const IColor* pool, ChessBoard* b, AnimationManager*, KGameCanvasAbstract* parent);
  88   ~PiecePool();
  89
  90   /** returns the sprite loader */
  91   PixmapLoader* loader() { return &m_loader; }
  92
  93   /** returns the sprite loader */
  94   const PixmapLoader* loader() const { return &m_loader; }
  95
  96   /** Load a sprite using the sprite loader */
  97   QPixmap loadSprite(const QString& id);
  98
  99   /** returns the flipped value */
 100   bool flipped() const { return m_flipped; }
 101
 102   /** returns the number of pieces in the pool */
 103   int fill();
 104
 105   /** removes all the pieces */
 106   void clear();
 107
 108   /** adds a sprite to the pool */
 109   void insertSprite(int index, const NamedSprite& sprite);
 110
 111   /** \return the sprite at the given index. */
 112   NamedSprite getSprite(int index);
 113
 114   /** removes the sprite at the given index from the pool. */
 115   void removeSprite(int index);
 116
 117   /** removes the sprite at the given index from the pool and returns it. */
 118   NamedSprite takeSprite(int index);
 119
 120
 121
 122   /** sets the width of the grid (the fill will stay the same, and the
 123       grid height will be recalculated) */
 124   void setGridWidth(int w);
 125
 126   /** the rect that will be covered by the pool */
 127   virtual QRect boardRect();
 128
 129   /** flips and moves the pieces in the pool at the same time */
 130   void flipAndMoveBy(QPoint p);
 131
 132   /** mouse release event  */
 133   virtual void onMouseRelease(const QPoint& pos, int button);
 134
 135   /** mouse press event  */
 136   virtual void onMousePress(const QPoint& pos, int button);
 137
 138   /** mouse move event  */
 139   virtual void onMouseMove(const QPoint& pos, int button);
 140
 141   /** resize event (new_size is the new size of a SQUARE) */
 142   virtual void onResize(int new_size, bool force_reload = false);
 143
 144   /** changed settings handler */
 145   virtual void settingsChanged();
 146
 147   virtual const IndexConverter* converter() const;
 148 };
 149
 150 #endif //PIECEPOOL_H