ListView.h

   1 /*
   2  * Copyright (c) 2016 Jon Turney
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  */
  13
  14 #ifndef SETUP_LISTVIEW_H
  15 #define SETUP_LISTVIEW_H
  16
  17 #include "ActionList.h"
  18 #include "win32.h"
  19 #include <commctrl.h>
  20 #include <vector>
  21
  22 // ---------------------------------------------------------------------------
  23 // interface to class ListView
  24 //
  25 // ListView Common Control
  26 // ---------------------------------------------------------------------------
  27
  28 struct ModifierKeys
  29 {
  30   enum { Shift = 0x01, Control = 0x02, Alt = 0x04 };
  31   static int get(); // get bitmask of currently pressed keys
  32 };
  33
  34 class ListViewLine
  35 {
  36  public:
  37   enum class State { collapsed, expanded, nothing=-1 };
  38   enum Action { None = 0x00, Direct = 0x01, PopUp = 0x02, NextRow = 0x04 };
  39
  40   virtual ~ListViewLine() {};
  41   virtual const std::wstring get_text(int col) const = 0;
  42   virtual State get_state() const = 0;
  43   virtual const std::string get_tooltip(int col) const = 0;
  44   virtual int get_indent() const = 0;
  45   virtual ActionList *get_actions(int col) const = 0;
  46   virtual int do_action(int col, int id) = 0;
  47   virtual int do_default_action(int col) = 0;
  48   virtual int map_key_to_action(WORD vkey, int modkeys, int & col_num,
  49                                 int & action_id) const = 0;
  50 };
  51
  52 typedef std::vector<ListViewLine *> ListViewContents;
  53
  54 class ListView
  55 {
  56  public:
  57   enum class ControlType
  58   {
  59     text,
  60     checkbox,
  61     popup,
  62   };
  63
  64   class Header
  65   {
  66   public:
  67     unsigned int text; // resource id of header text
  68     int fmt;
  69     ControlType type;
  70     int width;
  71     int hdr_width;
  72   };
  73   typedef Header *HeaderList;
  74
  75   void init(HWND parent, int id, HeaderList headers);
  76
  77   void noteColumnWidthStart();
  78   template <typename T>
  79   void noteColumnWidth(int col_num, const T& string);
  80   void noteColumnWidthEnd();
  81   void resizeColumns(void);
  82
  83   void setContents(ListViewContents *contents, bool tree = false);
  84   void setEmptyText(unsigned int text);
  85
  86   bool OnNotify (NMHDR *pNmHdr, LRESULT *pResult);
  87
  88  private:
  89   HWND hWndParent;
  90   HWND hWndListView;
  91   HWND hWndTip;
  92   HDC dc;
  93   HIMAGELIST hImgList;
  94   HIMAGELIST hEmptyImgList;
  95
  96   ListViewContents *contents;
  97   HeaderList headers;
  98   std::wstring empty_list_text;
  99   int iRow_track;
 100   int iCol_track;
 101
 102   void initColumns(HeaderList hl);
 103   void empty(void);
 104   int popup_menu(int iRow, int iCol, POINT p);
 105 };
 106
 107 #endif /* SETUP_LISTVIEW_H */