PickCategoryLine.cc

   1 /*
   2  * Copyright (c) 2002 Robert Collins.
   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  * Written by Robert Collins <robertc@hotmail.com>
  13  *
  14  */
  15
  16 #include "PickCategoryLine.h"
  17 #include "package_db.h"
  18 #include "PickView.h"
  19
  20 void
  21 PickCategoryLine::empty (void)
  22 {
  23   while (bucket.size ())
  24     {
  25       PickLine *line = *bucket.begin ();
  26       delete line;
  27       bucket.erase (bucket.begin ());
  28     }
  29 }
  30
  31 void
  32 PickCategoryLine::paint (HDC hdc, HRGN hUpdRgn, int x, int y, int row, int show_cat)
  33 {
  34   int r = y + row * theView.row_height;
  35   if (show_label)
  36     {
  37       int x2 = x + theView.headers[theView.cat_col].x + HMARGIN / 2 + depth * TREE_INDENT;
  38       int by = r + (theView.tm.tmHeight / 2) - 5;
  39
  40       // draw the '+' or '-' box
  41       theView.DrawIcon (hdc, x2, by, (collapsed ? theView.bm_treeplus : theView.bm_treeminus));
  42
  43       // draw the category name
  44       TextOut (hdc, x2 + 11 + ICON_MARGIN, r, cat.first.c_str(), cat.first.size());
  45       if (!labellength)
  46         {
  47           SIZE s;
  48           GetTextExtentPoint32 (hdc, cat.first.c_str(), cat.first.size(), &s);
  49           labellength = s.cx;
  50         }
  51
  52       // draw the 'spin' glyph
  53       spin_x = x2 + 11 + ICON_MARGIN + labellength + ICON_MARGIN;
  54       theView.DrawIcon (hdc, spin_x, by, theView.bm_spin);
  55
  56       // draw the caption ('Default', 'Install', etc)
  57       TextOut (hdc, spin_x + SPIN_WIDTH + ICON_MARGIN, r,
  58                current_default.caption (), strlen (current_default.caption ()));
  59       row++;
  60     }
  61   if (collapsed)
  62     return;
  63
  64   // are the siblings containers?
  65   if (bucket.size () && bucket[0]->IsContainer ())
  66     {
  67       for (size_t n = 0; n < bucket.size (); n++)
  68         {
  69           bucket[n]->paint (hdc, hUpdRgn, x, y, row, show_cat);
  70           row += bucket[n]->itemcount ();
  71         }
  72     }
  73   else
  74     {
  75       // calculate the maximum y value we expect for this group of lines
  76       int max_y = y + (row + bucket.size ()) * theView.row_height;
  77
  78       // paint all contained rows, columnwise
  79       for (int i = 0; theView.headers[i].text; i++)
  80         {
  81           RECT r;
  82           r.left = x + theView.headers[i].x;
  83           r.right = r.left + theView.headers[i].width;
  84
  85           // set up a clipping mask if necessary
  86           if (theView.headers[i].needs_clip)
  87             IntersectClipRect (hdc, r.left, y, r.right, max_y);
  88
  89           // draw each row in this column
  90           for (unsigned int n = 0; n < bucket.size (); n++)
  91             {
  92               // test for visibility
  93               r.top = y + ((row + n) * theView.row_height);
  94               r.bottom = r.top + theView.row_height;
  95               if (RectVisible (hdc, &r) != 0)
  96                 bucket[n]->paint (hdc, hUpdRgn, (int)r.left, (int)r.top, i, show_cat);
  97             }
  98
  99           // restore original clipping area
 100           if (theView.headers[i].needs_clip)
 101             SelectClipRgn (hdc, hUpdRgn);
 102         }
 103     }
 104 }
 105
 106 int
 107 PickCategoryLine::click (int const myrow, int const ClickedRow, int const x)
 108 {
 109   if (myrow == ClickedRow && show_label)
 110     {
 111       if ((size_t) x >= spin_x)
 112         {
 113           ++current_default;
 114
 115           return set_action (current_default);
 116         }
 117       else
 118         {
 119           collapsed = !collapsed;
 120           int accum_row = 0;
 121           for (size_t n = 0; n < bucket.size (); ++n)
 122             accum_row += bucket[n]->itemcount ();
 123           return collapsed ? accum_row : -accum_row;
 124         }
 125     }
 126   else
 127     {
 128       int accum_row = myrow + (show_label ? 1 : 0);
 129       for (size_t n = 0; n < bucket.size (); ++n)
 130         {
 131           if (accum_row + bucket[n]->itemcount () > ClickedRow)
 132             return bucket[n]->click (accum_row, ClickedRow, x);
 133           accum_row += bucket[n]->itemcount ();
 134         }
 135       return 0;
 136     }
 137 }
 138
 139 int
 140 PickCategoryLine::set_action (packagemeta::_actions action)
 141 {
 142   theView.GetParent ()->SetBusy ();
 143   current_default = action;
 144   int accum_diff = 0;
 145   for (size_t n = 0; n < bucket.size (); n++)
 146       accum_diff += bucket[n]->set_action (current_default);
 147   theView.GetParent ()->ClearBusy ();
 148   return accum_diff;
 149 }