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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <extdef.h> | |
22 | #include <assert.h> | |
23 | ||
24 | #include <algorithm> | |
25 | ||
26 | #include <QMenu> | |
27 | #include <QPainter> | |
28 | ||
29 | #include "tracegroup.hpp" | |
30 | ||
31 | using std::pair; | |
32 | using std::shared_ptr; | |
33 | using std::vector; | |
34 | ||
35 | namespace pv { | |
36 | namespace view { | |
37 | ||
38 | const int TraceGroup::Padding = 8; | |
39 | const int TraceGroup::Width = 12; | |
40 | const int TraceGroup::LineThickness = 5; | |
41 | const QColor TraceGroup::LineColour(QColor(0x55, 0x57, 0x53)); | |
42 | ||
43 | TraceGroup::~TraceGroup() | |
44 | { | |
45 | owner_ = nullptr; | |
46 | clear_child_items(); | |
47 | } | |
48 | ||
49 | bool TraceGroup::enabled() const | |
50 | { | |
51 | return std::any_of(child_items().begin(), child_items().end(), | |
52 | [](const shared_ptr<RowItem> &r) { return r->enabled(); }); | |
53 | } | |
54 | ||
55 | pv::Session& TraceGroup::session() | |
56 | { | |
57 | assert(owner_); | |
58 | return owner_->session(); | |
59 | } | |
60 | ||
61 | const pv::Session& TraceGroup::session() const | |
62 | { | |
63 | assert(owner_); | |
64 | return owner_->session(); | |
65 | } | |
66 | ||
67 | pv::view::View* TraceGroup::view() | |
68 | { | |
69 | assert(owner_); | |
70 | return owner_->view(); | |
71 | } | |
72 | ||
73 | const pv::view::View* TraceGroup::view() const | |
74 | { | |
75 | assert(owner_); | |
76 | return owner_->view(); | |
77 | } | |
78 | ||
79 | pair<int, int> TraceGroup::v_extents() const | |
80 | { | |
81 | return RowItemOwner::v_extents(); | |
82 | } | |
83 | ||
84 | void TraceGroup::paint_label(QPainter &p, int right, bool hover) | |
85 | { | |
86 | const QRectF r = label_rect(right).adjusted( | |
87 | LineThickness / 2, LineThickness / 2, | |
88 | -LineThickness / 2, -LineThickness / 2); | |
89 | ||
90 | // Paint the label | |
91 | const QPointF points[] = { | |
92 | r.topRight(), | |
93 | r.topLeft(), | |
94 | r.bottomLeft(), | |
95 | r.bottomRight() | |
96 | }; | |
97 | ||
98 | if (selected()) { | |
99 | const QPen pen(highlight_pen()); | |
100 | p.setPen(QPen(pen.brush(), pen.width() + LineThickness, | |
101 | Qt::SolidLine, Qt::SquareCap, Qt::RoundJoin)); | |
102 | p.setBrush(Qt::transparent); | |
103 | p.drawPolyline(points, countof(points)); | |
104 | } | |
105 | ||
106 | p.setPen(QPen(QBrush(LineColour.darker()), LineThickness, | |
107 | Qt::SolidLine, Qt::SquareCap, Qt::RoundJoin)); | |
108 | p.drawPolyline(points, countof(points)); | |
109 | p.setPen(QPen(QBrush(hover ? LineColour.lighter() : LineColour), | |
110 | LineThickness - 2, Qt::SolidLine, Qt::SquareCap, | |
111 | Qt::RoundJoin)); | |
112 | p.drawPolyline(points, countof(points)); | |
113 | } | |
114 | ||
115 | QRectF TraceGroup::label_rect(int right) const | |
116 | { | |
117 | QRectF rect; | |
118 | for (const shared_ptr<RowItem> r : child_items()) | |
119 | if (r && r->enabled()) | |
120 | rect = rect.united(r->label_rect(right)); | |
121 | ||
122 | return QRectF(rect.x() - Width - Padding, rect.y(), | |
123 | Width, rect.height()); | |
124 | } | |
125 | ||
126 | bool TraceGroup::pt_in_label_rect(int left, int right, const QPoint &point) | |
127 | { | |
128 | (void)left; | |
129 | (void)right; | |
130 | (void)point; | |
131 | ||
132 | return false; | |
133 | } | |
134 | ||
135 | QMenu* TraceGroup::create_context_menu(QWidget *parent) | |
136 | { | |
137 | QMenu *const menu = new QMenu(parent); | |
138 | ||
139 | QAction *const ungroup = new QAction(tr("Ungroup"), this); | |
140 | ungroup->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_U)); | |
141 | connect(ungroup, SIGNAL(triggered()), this, SLOT(on_ungroup())); | |
142 | menu->addAction(ungroup); | |
143 | ||
144 | return menu; | |
145 | } | |
146 | ||
147 | pv::widgets::Popup* TraceGroup::create_popup(QWidget *parent) | |
148 | { | |
149 | (void)parent; | |
150 | return NULL; | |
151 | } | |
152 | ||
153 | int TraceGroup::owner_visual_v_offset() const | |
154 | { | |
155 | return owner_ ? visual_v_offset() + owner_->owner_visual_v_offset() : 0; | |
156 | } | |
157 | ||
158 | void TraceGroup::restack_items() | |
159 | { | |
160 | vector< shared_ptr<RowItem> > items( | |
161 | child_items().begin(), child_items().end()); | |
162 | ||
163 | // Sort by the centre line of the extents | |
164 | stable_sort(items.begin(), items.end(), | |
165 | [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) { | |
166 | const auto aext = a->v_extents(); | |
167 | const auto bext = b->v_extents(); | |
168 | return a->layout_v_offset() + | |
169 | (aext.first + aext.second) / 2 < | |
170 | b->layout_v_offset() + | |
171 | (bext.first + bext.second) / 2; | |
172 | }); | |
173 | ||
174 | int total_offset = 0; | |
175 | for (shared_ptr<RowItem> r : items) { | |
176 | const pair<int, int> extents = r->v_extents(); | |
177 | if (extents.first == 0 && extents.second == 0) | |
178 | continue; | |
179 | ||
180 | // We position disabled traces, so that they are close to the | |
181 | // animation target positon should they be re-enabled | |
182 | if (r->enabled()) | |
183 | total_offset += -extents.first; | |
184 | ||
185 | if (!r->dragging()) | |
186 | r->set_layout_v_offset(total_offset); | |
187 | ||
188 | if (r->enabled()) | |
189 | total_offset += extents.second; | |
190 | } | |
191 | } | |
192 | ||
193 | unsigned int TraceGroup::depth() const | |
194 | { | |
195 | return owner_ ? owner_->depth() + 1 : 0; | |
196 | } | |
197 | ||
198 | void TraceGroup::ungroup() | |
199 | { | |
200 | const vector< shared_ptr<RowItem> > items( | |
201 | child_items().begin(), child_items().end()); | |
202 | clear_child_items(); | |
203 | ||
204 | for (shared_ptr<RowItem> r : items) | |
205 | owner_->add_child_item(r); | |
206 | ||
207 | owner_->remove_child_item(shared_from_this()); | |
208 | } | |
209 | ||
210 | void TraceGroup::on_ungroup() | |
211 | { | |
212 | ungroup(); | |
213 | } | |
214 | ||
215 | void TraceGroup::appearance_changed(bool label, bool content) | |
216 | { | |
217 | if (owner_) | |
218 | owner_->appearance_changed(label, content); | |
219 | } | |
220 | ||
221 | void TraceGroup::extents_changed(bool horz, bool vert) | |
222 | { | |
223 | if (owner_) | |
224 | owner_->extents_changed(horz, vert); | |
225 | } | |
226 | ||
227 | } // namespace view | |
228 | } // namespace pv |