pv/view/tracetreeitemowner.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <cassert>
  22
  23 #include "tracetreeitem.hpp"
  24 #include "tracetreeitemowner.hpp"
  25 #include "trace.hpp"
  26
  27 using std::dynamic_pointer_cast;
  28 using std::max;
  29 using std::make_pair;
  30 using std::min;
  31 using std::pair;
  32 using std::set;
  33 using std::shared_ptr;
  34 using std::static_pointer_cast;
  35 using std::vector;
  36
  37 namespace pv {
  38 namespace view {
  39
  40 const ViewItemOwner::item_list& TraceTreeItemOwner::child_items() const
  41 {
  42         return items_;
  43 }
  44
  45 vector< std::shared_ptr<TraceTreeItem> >
  46 TraceTreeItemOwner::trace_tree_child_items() const
  47 {
  48         vector< shared_ptr<TraceTreeItem> > items;
  49         for (auto &i : items_) {
  50                 assert(dynamic_pointer_cast<TraceTreeItem>(i));
  51                 const shared_ptr<TraceTreeItem> t(
  52                         static_pointer_cast<TraceTreeItem>(i));
  53                 items.push_back(t);
  54         }
  55
  56         return items;
  57 }
  58
  59 void TraceTreeItemOwner::clear_child_items()
  60 {
  61         for (auto &t : trace_tree_child_items()) {
  62                 assert(t->owner() == this);
  63                 t->set_owner(nullptr);
  64         }
  65         items_.clear();
  66 }
  67
  68 void TraceTreeItemOwner::add_child_item(std::shared_ptr<TraceTreeItem> item)
  69 {
  70         assert(!item->owner());
  71         item->set_owner(this);
  72         items_.push_back(item);
  73
  74         extents_changed(true, true);
  75 }
  76
  77 void TraceTreeItemOwner::remove_child_item(std::shared_ptr<TraceTreeItem> item)
  78 {
  79         assert(item->owner() == this);
  80         item->set_owner(nullptr);
  81         auto iter = std::find(items_.begin(), items_.end(), item);
  82         assert(iter != items_.end());
  83         items_.erase(iter);
  84
  85         extents_changed(true, true);
  86 }
  87
  88 pair<int, int> TraceTreeItemOwner::v_extents() const
  89 {
  90         pair<int, int> extents(INT_MAX, INT_MIN);
  91
  92         for (const shared_ptr<TraceTreeItem> t : trace_tree_child_items()) {
  93                 assert(t);
  94                 if (!t->enabled())
  95                         continue;
  96
  97                 const int child_offset = t->layout_v_offset();
  98                 const pair<int, int> child_extents = t->v_extents();
  99                 extents.first = min(child_extents.first + child_offset,
 100                         extents.first);
 101                 extents.second = max(child_extents.second + child_offset,
 102                         extents.second);
 103         }
 104
 105         return extents;
 106 }
 107
 108 bool TraceTreeItemOwner::reassign_bgcolour_states(bool next_bgcolour_state)
 109 {
 110         vector< shared_ptr<TraceTreeItem> > items = trace_tree_child_items();
 111
 112         // Sort items according to vertical position
 113         sort(items.begin(), items.end(),
 114                 [](const shared_ptr<TraceTreeItem> a, const shared_ptr<TraceTreeItem> b) {
 115                 return a->layout_v_offset() > b->layout_v_offset(); });
 116
 117         for (const shared_ptr<TraceTreeItem> item : items) {
 118                 item->set_bgcolour_state(next_bgcolour_state);
 119                 next_bgcolour_state = !next_bgcolour_state;
 120         }
 121
 122         return next_bgcolour_state;
 123 }
 124
 125 void TraceTreeItemOwner::restack_items()
 126 {
 127 }
 128
 129 } // view
 130 } // pv