layoutmanager.h

   1 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   2 // layoutmanager.h
   3
   4
   5 #ifndef _LAYOUTMANAGER_H
   6 #  define _LAYOUTMANAGER_H
   7
   8 #  include "misc.h"
   9 #  include <list>
  10
  11
  12 ///
  13 class LayoutManager
  14 {
  15 public:
  16   ///
  17   enum Origin
  18   {
  19     ORIGIN_LEFT_EDGE,                           ///
  20     ORIGIN_TOP_EDGE = ORIGIN_LEFT_EDGE,         ///
  21     ORIGIN_CENTER,                              ///
  22     ORIGIN_RIGHT_EDGE,                          ///
  23     ORIGIN_BOTTOM_EDGE = ORIGIN_RIGHT_EDGE,     ///
  24   };
  25
  26   ///
  27   enum Restrict
  28   {
  29     RESTRICT_NONE = 0,                          ///
  30     RESTRICT_HORIZONTALLY = 1,                  ///
  31     RESTRICT_VERTICALLY = 2,                    ///
  32     RESTRICT_BOTH = RESTRICT_HORIZONTALLY | RESTRICT_VERTICALLY, ///
  33   };
  34
  35 private:
  36   ///
  37   class Item
  38   {
  39   public:
  40     HWND m_hwnd;                                ///
  41     HWND m_hwndParent;                          ///
  42     RECT m_rc;                                  ///
  43     RECT m_rcParent;                            ///
  44     Origin m_origin[4];                         ///
  45   };
  46
  47   ///
  48   class SmallestSize
  49   {
  50   public:
  51     HWND m_hwnd;                                ///
  52     SIZE m_size;                                ///
  53
  54   public:
  55     ///
  56     SmallestSize() : m_hwnd(NULL) { }
  57   };
  58
  59   typedef std::list<Item> Items;                ///
  60
  61 protected:
  62   HWND m_hwnd;                                  ///
  63
  64 private:
  65   Items m_items;                                ///
  66   Restrict m_smallestRestriction;               ///
  67   SIZE m_smallestSize;                          ///
  68   Restrict m_largestRestriction;                ///
  69   SIZE m_largestSize;                           ///
  70
  71 public:
  72   ///
  73   LayoutManager(HWND i_hwnd);
  74
  75   /** restrict the smallest size of the window to the current size of it or
  76       specified by i_size */
  77   void restrictSmallestSize(Restrict i_restrict = RESTRICT_BOTH,
  78                             SIZE *i_size = NULL);
  79
  80   /** restrict the largest size of the window to the current size of it or
  81       specified by i_size */
  82   void restrictLargestSize(Restrict i_restrict = RESTRICT_BOTH,
  83                            SIZE *i_size = NULL);
  84
  85   ///
  86   bool addItem(HWND i_hwnd,
  87                Origin i_originLeft = ORIGIN_LEFT_EDGE,
  88                Origin i_originTop = ORIGIN_TOP_EDGE,
  89                Origin i_originRight = ORIGIN_LEFT_EDGE,
  90                Origin i_originBottom = ORIGIN_TOP_EDGE);
  91   ///
  92   void adjust() const;
  93
  94   /// draw size box
  95   virtual BOOL wmPaint();
  96
  97   /// size restriction
  98   virtual BOOL wmSizing(int i_edge, RECT *io_rc);
  99
 100   /// hittest for size box
 101   virtual BOOL wmNcHitTest(int i_x, int i_y);
 102
 103   /// WM_SIZE
 104   virtual BOOL wmSize(DWORD /* i_fwSizeType */, short /* i_nWidth */,
 105                       short /* i_nHeight */);
 106
 107   /// forward message
 108   virtual BOOL defaultWMHandler(UINT i_message, WPARAM i_wParam,
 109                                 LPARAM i_lParam);
 110 };
 111
 112
 113 #endif // !_LAYOUTMANAGER_H