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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <cassert> | |
21 | ||
22 | #include "view.hpp" | |
23 | ||
24 | #include "tracetreeitem.hpp" | |
25 | ||
26 | namespace pv { | |
27 | namespace views { | |
28 | namespace trace { | |
29 | ||
30 | TraceTreeItem::TraceTreeItem() : | |
31 | owner_(nullptr), | |
32 | layout_v_offset_(0), | |
33 | visual_v_offset_(0), | |
34 | v_offset_animation_(this, "visual_v_offset") | |
35 | { | |
36 | } | |
37 | ||
38 | void TraceTreeItem::select(bool select) | |
39 | { | |
40 | ViewItem::select(select); | |
41 | owner_->row_item_appearance_changed(true, true); | |
42 | } | |
43 | ||
44 | int TraceTreeItem::layout_v_offset() const | |
45 | { | |
46 | return layout_v_offset_; | |
47 | } | |
48 | ||
49 | void TraceTreeItem::set_layout_v_offset(int v_offset) | |
50 | { | |
51 | if (layout_v_offset_ == v_offset) | |
52 | return; | |
53 | ||
54 | layout_v_offset_ = v_offset; | |
55 | ||
56 | if (owner_) | |
57 | owner_->extents_changed(false, true); | |
58 | } | |
59 | ||
60 | int TraceTreeItem::visual_v_offset() const | |
61 | { | |
62 | return visual_v_offset_; | |
63 | } | |
64 | ||
65 | void TraceTreeItem::set_visual_v_offset(int v_offset) | |
66 | { | |
67 | visual_v_offset_ = v_offset; | |
68 | ||
69 | if (owner_) | |
70 | owner_->row_item_appearance_changed(true, true); | |
71 | } | |
72 | ||
73 | void TraceTreeItem::force_to_v_offset(int v_offset) | |
74 | { | |
75 | v_offset_animation_.stop(); | |
76 | layout_v_offset_ = visual_v_offset_ = v_offset; | |
77 | ||
78 | if (owner_) { | |
79 | owner_->row_item_appearance_changed(true, true); | |
80 | owner_->extents_changed(false, true); | |
81 | } | |
82 | } | |
83 | ||
84 | void TraceTreeItem::animate_to_layout_v_offset() | |
85 | { | |
86 | if (visual_v_offset_ == layout_v_offset_ || | |
87 | (v_offset_animation_.endValue() == layout_v_offset_ && | |
88 | v_offset_animation_.state() == QAbstractAnimation::Running)) | |
89 | return; | |
90 | ||
91 | v_offset_animation_.setDuration(100); | |
92 | v_offset_animation_.setStartValue(visual_v_offset_); | |
93 | v_offset_animation_.setEndValue(layout_v_offset_); | |
94 | v_offset_animation_.setEasingCurve(QEasingCurve::OutQuad); | |
95 | v_offset_animation_.start(); | |
96 | } | |
97 | ||
98 | TraceTreeItemOwner* TraceTreeItem::owner() const | |
99 | { | |
100 | return owner_; | |
101 | } | |
102 | ||
103 | void TraceTreeItem::set_owner(TraceTreeItemOwner *owner) | |
104 | { | |
105 | assert(owner_ || owner); | |
106 | v_offset_animation_.stop(); | |
107 | ||
108 | if (owner_) { | |
109 | const int owner_offset = owner_->owner_visual_v_offset(); | |
110 | layout_v_offset_ += owner_offset; | |
111 | visual_v_offset_ += owner_offset; | |
112 | } | |
113 | ||
114 | owner_ = owner; | |
115 | ||
116 | if (owner_) { | |
117 | const int owner_offset = owner_->owner_visual_v_offset(); | |
118 | layout_v_offset_ -= owner_offset; | |
119 | visual_v_offset_ -= owner_offset; | |
120 | } | |
121 | } | |
122 | ||
123 | int TraceTreeItem::get_visual_y() const | |
124 | { | |
125 | assert(owner_); | |
126 | return visual_v_offset_ + owner_->owner_visual_v_offset(); | |
127 | } | |
128 | ||
129 | void TraceTreeItem::drag_by(const QPoint &delta) | |
130 | { | |
131 | assert(owner_); | |
132 | force_to_v_offset(drag_point_.y() + delta.y() - | |
133 | owner_->owner_visual_v_offset()); | |
134 | } | |
135 | ||
136 | QPoint TraceTreeItem::drag_point(const QRect &rect) const | |
137 | { | |
138 | return QPoint(rect.right(), get_visual_y()); | |
139 | } | |
140 | ||
141 | } // namespace trace | |
142 | } // namespace views | |
143 | } // namespace pv |