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 "mainanimation.h"
  18 #include "namedsprite_utils.h"
  19 #include "pixmaploader.h"
  20
  21 class AnimationSettings;
  22 class ChessBoard;
  23 class IColor;
  24
  25 /**
  26   * @class PiecePool <piecepool.h>
  27   * @brief The class representing a crazyhouse-like piece pool.
  28   *
  29   * PiecePool is a canvas item attached to a Board that keeps a
  30   * stack of pieces and lets you drop them on the board, notifying
  31   * the board.
  32   */
  33 class PiecePool : public ClickableCanvas
  34                 , private IndexConverter {
  35
  36 private:
  37   const IColor* m_pool;
  38
  39   /** displayed m_sprites */
  40   std::vector<NamedSprite>   m_sprites;
  41
  42   /** refrence board */
  43   ChessBoard* m_board;
  44
  45   /** true if flipped */
  46   bool m_flipped;
  47
  48   /** size if a square */
  49   int m_square_size;
  50
  51   /** the width of the pool (ie how many pieces) */
  52   int m_width;
  53
  54   /** loader class, to load pieces */
  55   PixmapLoader m_loader;
  56
  57   /** the piece that is being dragged, if any */
  58   NamedSprite m_dragged;
  59
  60   /** the index of the piece being dragged */
  61   int m_dragged_index;
  62
  63   /** main animation structure */
  64   MainAnimation* m_main_animation;
  65
  66   const AnimationSettings& m_anim_settings;
  67
  68   /** internal function, resizes the grid vector to hold x pieces */
  69   void setFill(int x);
  70
  71   /** removes the drag putting it back together with his friends in the pool.
  72       if fadeOff is true the current drag will fade off while a new piece will
  73       fade in the pool, while if fadeOff is false the fade off is not done.
  74       fadeOff will typically be false if the piece sprite has been used in the
  75       board and we don't want a clone that is fading off */
  76   void cancelDragging(bool fadeOff = true);
  77
  78   /** takes the named sprite */
  79   NamedSprite takeSpriteAt(int i);
  80
  81   /** converts an index to the upper left point of the corresponding square */
  82   virtual QPoint toReal(int i) const;
  83
  84   /** finds to which index corresponds the point p, or -1 if corresponds to none */
  85   virtual int toLogical(const QPoint& p) const;
  86 public:
  87   friend class GraphicalSystem;
  88   friend class ChessTable;
  89
  90   /** Constructor, requires the board the pool will be attached to */
  91   PiecePool(const IColor* pool, ChessBoard* b, const AnimationSettings&, KGameCanvasAbstract* parent);
  92   ~PiecePool();
  93
  94   /** returns the sprite loader */
  95   PixmapLoader* loader() { return &m_loader; }
  96
  97   /** returns the sprite loader */
  98   const PixmapLoader* loader() const { return &m_loader; }
  99
 100   /** Load a sprite using the sprite loader */
 101   QPixmap loadSprite(const QString& id);
 102
 103   /** returns the flipped value */
 104   bool flipped() const { return m_flipped; }
 105
 106   /** returns the number of pieces in the pool */
 107   int fill();
 108
 109   /** removes all the pieces */
 110   void clear();
 111
 112   /** adds a sprite to the pool */
 113   void insertSprite(int index, const NamedSprite& sprite);
 114
 115   /** \return the sprite at the given index. */
 116   NamedSprite getSprite(int index);
 117
 118   /** removes the sprite at the given index from the pool. */
 119   void removeSprite(int index);
 120
 121   /** removes the sprite at the given index from the pool and returns it. */
 122   NamedSprite takeSprite(int index);
 123
 124
 125
 126   /** sets the width of the grid (the fill will stay the same, and the
 127       grid height will be recalculated) */
 128   void setGridWidth(int w);
 129
 130   /** the rect that will be covered by the pool */
 131   virtual QRect boardRect();
 132
 133   /** flips and moves the pieces in the pool at the same time */
 134   void flipAndMoveBy(QPoint p);
 135
 136   /** mouse release event  */
 137   virtual void onMouseRelease(const QPoint& pos, int button);
 138
 139   /** mouse press event  */
 140   virtual void onMousePress(const QPoint& pos, int button);
 141
 142   /** mouse move event  */
 143   virtual void onMouseMove(const QPoint& pos, int button);
 144
 145   /** resize event (new_size is the new size of a SQUARE) */
 146   virtual void onResize(int new_size, bool force_reload = false);
 147
 148   /** changed settings handler */
 149   virtual void settingsChanged();
 150 };
 151
 152 #endif //PIECEPOOL_H