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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 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 "header.hpp" | |
21 | #include "view.hpp" | |
22 | ||
23 | #include "signal.hpp" | |
24 | #include "tracegroup.hpp" | |
25 | ||
26 | #include <algorithm> | |
27 | #include <cassert> | |
28 | ||
29 | #include <boost/iterator/filter_iterator.hpp> | |
30 | ||
31 | #include <QApplication> | |
32 | #include <QMenu> | |
33 | #include <QMouseEvent> | |
34 | #include <QPainter> | |
35 | #include <QRect> | |
36 | ||
37 | #include <pv/session.hpp> | |
38 | #include <pv/widgets/popup.hpp> | |
39 | ||
40 | using boost::make_filter_iterator; | |
41 | ||
42 | using std::count_if; | |
43 | using std::dynamic_pointer_cast; | |
44 | using std::shared_ptr; | |
45 | using std::stable_sort; | |
46 | using std::vector; | |
47 | ||
48 | namespace pv { | |
49 | namespace views { | |
50 | namespace trace { | |
51 | ||
52 | const int Header::Padding = 12; | |
53 | ||
54 | static bool item_selected(shared_ptr<TraceTreeItem> r) | |
55 | { | |
56 | return r->selected(); | |
57 | } | |
58 | ||
59 | Header::Header(View &parent) : | |
60 | MarginWidget(parent) | |
61 | { | |
62 | } | |
63 | ||
64 | QSize Header::sizeHint() const | |
65 | { | |
66 | QRectF max_rect(-Padding, 0, Padding, 0); | |
67 | const vector<shared_ptr<TraceTreeItem>> items( | |
68 | view_.list_by_type<TraceTreeItem>()); | |
69 | for (auto &i : items) | |
70 | if (i->enabled()) | |
71 | max_rect = max_rect.united(i->label_rect(QRect())); | |
72 | return QSize(max_rect.width() + Padding, 0); | |
73 | } | |
74 | ||
75 | QSize Header::extended_size_hint() const | |
76 | { | |
77 | return sizeHint() + QSize(ViewItem::HighlightRadius, 0); | |
78 | } | |
79 | ||
80 | vector< shared_ptr<ViewItem> > Header::items() | |
81 | { | |
82 | const vector<shared_ptr<TraceTreeItem>> items( | |
83 | view_.list_by_type<TraceTreeItem>()); | |
84 | return vector< shared_ptr<ViewItem> >(items.begin(), items.end()); | |
85 | } | |
86 | ||
87 | shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt) | |
88 | { | |
89 | const QRect r(0, 0, width(), height()); | |
90 | const vector<shared_ptr<TraceTreeItem>> items( | |
91 | view_.list_by_type<TraceTreeItem>()); | |
92 | for (auto i = items.rbegin(); i != items.rend(); i++) | |
93 | if ((*i)->enabled() && (*i)->label_rect(r).contains(pt)) | |
94 | return *i; | |
95 | return shared_ptr<TraceTreeItem>(); | |
96 | } | |
97 | ||
98 | void Header::paintEvent(QPaintEvent*) | |
99 | { | |
100 | const QRect rect(0, 0, width(), height()); | |
101 | ||
102 | vector< shared_ptr<ViewItem> > items(view_.list_by_type<ViewItem>()); | |
103 | ||
104 | stable_sort(items.begin(), items.end(), | |
105 | [](const shared_ptr<ViewItem> &a, const shared_ptr<ViewItem> &b) { | |
106 | return a->drag_point(QRect()).y() < b->drag_point(QRect()).y(); }); | |
107 | ||
108 | QPainter painter(this); | |
109 | painter.setRenderHint(QPainter::Antialiasing); | |
110 | ||
111 | for (const shared_ptr<ViewItem>& r : items) { | |
112 | assert(r); | |
113 | ||
114 | const bool highlight = !item_dragging_ && | |
115 | r->label_rect(rect).contains(mouse_point_); | |
116 | r->paint_label(painter, rect, highlight); | |
117 | } | |
118 | ||
119 | painter.end(); | |
120 | } | |
121 | ||
122 | void Header::contextMenuEvent(QContextMenuEvent *event) | |
123 | { | |
124 | const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_); | |
125 | if (!r) | |
126 | return; | |
127 | ||
128 | QMenu *menu = r->create_header_context_menu(this); | |
129 | if (!menu) | |
130 | menu = new QMenu(this); | |
131 | ||
132 | const vector< shared_ptr<TraceTreeItem> > items( | |
133 | view_.list_by_type<TraceTreeItem>()); | |
134 | if (count_if(items.begin(), items.end(), item_selected) > 1) { | |
135 | menu->addSeparator(); | |
136 | ||
137 | QAction *const group = new QAction(tr("Group"), this); | |
138 | QList<QKeySequence> shortcuts; | |
139 | shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G)); | |
140 | group->setShortcuts(shortcuts); | |
141 | connect(group, SIGNAL(triggered()), this, SLOT(on_group())); | |
142 | menu->addAction(group); | |
143 | } | |
144 | ||
145 | menu->popup(event->globalPos()); | |
146 | } | |
147 | ||
148 | void Header::keyPressEvent(QKeyEvent *event) | |
149 | { | |
150 | assert(event); | |
151 | ||
152 | MarginWidget::keyPressEvent(event); | |
153 | ||
154 | if (event->key() == Qt::Key_G && event->modifiers() == Qt::ControlModifier) | |
155 | on_group(); | |
156 | else if (event->key() == Qt::Key_U && event->modifiers() == Qt::ControlModifier) | |
157 | on_ungroup(); | |
158 | } | |
159 | ||
160 | void Header::on_group() | |
161 | { | |
162 | const vector< shared_ptr<TraceTreeItem> > items( | |
163 | view_.list_by_type<TraceTreeItem>()); | |
164 | vector< shared_ptr<TraceTreeItem> > selected_items( | |
165 | make_filter_iterator(item_selected, items.begin(), items.end()), | |
166 | make_filter_iterator(item_selected, items.end(), items.end())); | |
167 | stable_sort(selected_items.begin(), selected_items.end(), | |
168 | [](const shared_ptr<TraceTreeItem> &a, const shared_ptr<TraceTreeItem> &b) { | |
169 | return a->visual_v_offset() < b->visual_v_offset(); }); | |
170 | ||
171 | shared_ptr<TraceGroup> group(new TraceGroup()); | |
172 | shared_ptr<TraceTreeItem> mouse_down_item( | |
173 | dynamic_pointer_cast<TraceTreeItem>(mouse_down_item_)); | |
174 | shared_ptr<TraceTreeItem> focus_item( | |
175 | mouse_down_item ? mouse_down_item : selected_items.front()); | |
176 | ||
177 | assert(focus_item); | |
178 | assert(focus_item->owner()); | |
179 | focus_item->owner()->add_child_item(group); | |
180 | ||
181 | // Set the group v_offset here before reparenting | |
182 | group->force_to_v_offset(focus_item->layout_v_offset() + | |
183 | focus_item->v_extents().first); | |
184 | ||
185 | for (size_t i = 0; i < selected_items.size(); i++) { | |
186 | const shared_ptr<TraceTreeItem> &r = selected_items[i]; | |
187 | assert(r->owner()); | |
188 | r->owner()->remove_child_item(r); | |
189 | group->add_child_item(r); | |
190 | ||
191 | // Put the items at 1-pixel offsets, so that restack will | |
192 | // stack them in the right order | |
193 | r->set_layout_v_offset(i); | |
194 | } | |
195 | } | |
196 | ||
197 | void Header::on_ungroup() | |
198 | { | |
199 | bool restart; | |
200 | do { | |
201 | restart = false; | |
202 | const vector< shared_ptr<TraceGroup> > groups( | |
203 | view_.list_by_type<TraceGroup>()); | |
204 | for (const shared_ptr<TraceGroup>& tg : groups) | |
205 | if (tg->selected()) { | |
206 | tg->ungroup(); | |
207 | restart = true; | |
208 | break; | |
209 | } | |
210 | } while (restart); | |
211 | } | |
212 | ||
213 | } // namespace trace | |
214 | } // namespace views | |
215 | } // namespace pv |