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40aca27e JH |
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 | ||
b434cbaf JH |
21 | #include <algorithm> |
22 | ||
23 | #include "rowitem.hpp" | |
24 | #include "timeitem.hpp" | |
40aca27e JH |
25 | #include "view.hpp" |
26 | #include "viewwidget.hpp" | |
27 | ||
b434cbaf JH |
28 | using std::any_of; |
29 | using std::shared_ptr; | |
30 | using std::vector; | |
31 | ||
40aca27e JH |
32 | namespace pv { |
33 | namespace view { | |
34 | ||
35 | ViewWidget::ViewWidget(View &parent) : | |
36 | QWidget(&parent), | |
37 | view_(parent) | |
38 | { | |
39 | } | |
40 | ||
b434cbaf JH |
41 | bool ViewWidget::accept_drag() const |
42 | { | |
43 | const vector< shared_ptr<TimeItem> > items(view_.time_items()); | |
44 | ||
45 | const bool any_row_items_selected = any_of(view_.begin(), view_.end(), | |
46 | [](const shared_ptr<RowItem> &r) { return r->selected(); }); | |
47 | ||
48 | const bool any_time_items_selected = any_of(items.begin(), items.end(), | |
49 | [](const shared_ptr<TimeItem> &i) { return i->selected(); }); | |
50 | ||
51 | if (any_row_items_selected && !any_time_items_selected) | |
52 | { | |
53 | // Check all the drag items share a common owner | |
54 | RowItemOwner *item_owner = nullptr; | |
55 | for (shared_ptr<RowItem> r : view_) | |
56 | if (r->dragging()) { | |
57 | if (!item_owner) | |
58 | item_owner = r->owner(); | |
59 | else if(item_owner != r->owner()) | |
60 | return false; | |
61 | } | |
62 | ||
63 | return true; | |
64 | } | |
65 | else if (any_time_items_selected && !any_row_items_selected) | |
66 | { | |
67 | return true; | |
68 | } | |
69 | ||
70 | return false; | |
71 | } | |
72 | ||
1dffa582 JH |
73 | void ViewWidget::drag_items(const QPoint &delta) |
74 | { | |
75 | // Drag the row items | |
76 | RowItemOwner *item_owner = nullptr; | |
77 | for (std::shared_ptr<RowItem> r : view_) | |
78 | if (r->dragging()) { | |
79 | item_owner = r->owner(); | |
80 | r->drag_by(delta); | |
81 | ||
82 | // Ensure the trace is selected | |
83 | r->select(); | |
84 | } | |
85 | ||
86 | if (item_owner) { | |
87 | item_owner->restack_items(); | |
88 | for (const auto &r : *item_owner) | |
89 | r->animate_to_layout_v_offset(); | |
90 | } | |
91 | ||
92 | // Drag the time items | |
93 | const vector< shared_ptr<TimeItem> > items(view_.time_items()); | |
94 | for (auto &i : items) | |
95 | if (i->dragging()) | |
96 | i->drag_by(delta); | |
97 | } | |
98 | ||
40aca27e JH |
99 | } // namespace view |
100 | } // namespace pv |