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931f20b0 JH |
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 | ||
23 | #include <assert.h> | |
24 | #include <math.h> | |
25 | ||
d7c0ca4a | 26 | #include <QApplication> |
b213ef09 | 27 | #include <QFormLayout> |
0891e69b | 28 | #include <QKeyEvent> |
b213ef09 JH |
29 | #include <QLineEdit> |
30 | ||
931f20b0 | 31 | #include "trace.h" |
91e8bf08 | 32 | #include "tracepalette.h" |
931f20b0 JH |
33 | #include "view.h" |
34 | ||
91e8bf08 | 35 | #include <pv/widgets/colourbutton.h> |
1f81a394 | 36 | #include <pv/widgets/popup.h> |
569d1e41 | 37 | |
931f20b0 JH |
38 | namespace pv { |
39 | namespace view { | |
40 | ||
fe08b6e8 | 41 | const QPen Trace::AxisPen(QColor(128, 128, 128, 64)); |
931f20b0 JH |
42 | const int Trace::LabelHitPadding = 2; |
43 | ||
83c23cc9 | 44 | Trace::Trace(QString name) : |
931f20b0 | 45 | _name(name), |
20eaae39 JH |
46 | _popup(NULL), |
47 | _popup_form(NULL) | |
931f20b0 JH |
48 | { |
49 | } | |
50 | ||
51 | QString Trace::get_name() const | |
52 | { | |
53 | return _name; | |
54 | } | |
55 | ||
56 | void Trace::set_name(QString name) | |
57 | { | |
58 | _name = name; | |
59 | } | |
60 | ||
61 | QColor Trace::get_colour() const | |
62 | { | |
63 | return _colour; | |
64 | } | |
65 | ||
66 | void Trace::set_colour(QColor colour) | |
67 | { | |
68 | _colour = colour; | |
69 | } | |
70 | ||
01fd3263 JH |
71 | void Trace::paint_label(QPainter &p, int right, bool hover) |
72 | { | |
d5d1f925 | 73 | const int y = get_y(); |
01fd3263 | 74 | |
931f20b0 JH |
75 | p.setBrush(_colour); |
76 | ||
77 | if (!enabled()) | |
78 | return; | |
79 | ||
80 | const QColor colour = get_colour(); | |
81 | ||
1053d05c | 82 | const QRectF r = label_rect(right); |
931f20b0 JH |
83 | |
84 | // Paint the label | |
b5cb6c35 | 85 | const float label_arrow_length = r.height() / 2; |
931f20b0 | 86 | const QPointF points[] = { |
1053d05c | 87 | r.topLeft(), |
b5cb6c35 JH |
88 | QPointF(r.right() - label_arrow_length, r.top()), |
89 | QPointF(r.right(), y), | |
90 | QPointF(r.right() - label_arrow_length, r.bottom()), | |
1053d05c | 91 | r.bottomLeft() |
931f20b0 | 92 | }; |
931f20b0 | 93 | const QPointF highlight_points[] = { |
1053d05c | 94 | QPointF(r.left() + 1, r.top() + 1), |
b5cb6c35 JH |
95 | QPointF(r.right() - label_arrow_length, r.top() + 1), |
96 | QPointF(r.right() - 1, y), | |
97 | QPointF(r.right() - label_arrow_length, r.bottom() - 1), | |
1053d05c | 98 | QPointF(r.left() + 1, r.bottom() - 1) |
931f20b0 JH |
99 | }; |
100 | ||
101 | if (selected()) { | |
102 | p.setPen(highlight_pen()); | |
103 | p.setBrush(Qt::transparent); | |
104 | p.drawPolygon(points, countof(points)); | |
105 | } | |
106 | ||
107 | p.setPen(Qt::transparent); | |
108 | p.setBrush(hover ? colour.lighter() : colour); | |
109 | p.drawPolygon(points, countof(points)); | |
110 | ||
111 | p.setPen(colour.lighter()); | |
112 | p.setBrush(Qt::transparent); | |
113 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
114 | ||
115 | p.setPen(colour.darker()); | |
116 | p.setBrush(Qt::transparent); | |
117 | p.drawPolygon(points, countof(points)); | |
118 | ||
119 | // Paint the text | |
410f9c81 | 120 | p.setPen(get_text_colour()); |
d7c0ca4a | 121 | p.setFont(QApplication::font()); |
b5cb6c35 JH |
122 | p.drawText(QRectF(r.x(), r.y(), |
123 | r.width() - label_arrow_length, r.height()), | |
124 | Qt::AlignCenter | Qt::AlignVCenter, _name); | |
931f20b0 JH |
125 | } |
126 | ||
9b6378f1 JH |
127 | QMenu* Trace::create_context_menu(QWidget *parent) |
128 | { | |
129 | QMenu *const menu = SelectableItem::create_context_menu(parent); | |
130 | ||
9b6378f1 JH |
131 | return menu; |
132 | } | |
133 | ||
569d1e41 JH |
134 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) |
135 | { | |
136 | using pv::widgets::Popup; | |
20eaae39 JH |
137 | |
138 | _popup = new Popup(parent); | |
20eaae39 | 139 | |
37fd11b1 | 140 | create_popup_form(); |
20eaae39 JH |
141 | |
142 | connect(_popup, SIGNAL(closed()), | |
143 | this, SLOT(on_popup_closed())); | |
144 | ||
145 | return _popup; | |
569d1e41 JH |
146 | } |
147 | ||
1053d05c | 148 | QRectF Trace::label_rect(int right) |
d7c0ca4a JH |
149 | { |
150 | using pv::view::View; | |
151 | ||
d7c0ca4a JH |
152 | QFontMetrics m(QApplication::font()); |
153 | const QSize text_size( | |
154 | m.boundingRect(QRect(), 0, _name).width(), | |
155 | m.boundingRect(QRect(), 0, "Tg").height()); | |
156 | const QSizeF label_size( | |
157 | text_size.width() + View::LabelPadding.width() * 2, | |
158 | ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2); | |
b5cb6c35 | 159 | const float half_height = label_size.height() / 2; |
d7c0ca4a | 160 | return QRectF( |
b5cb6c35 JH |
161 | right - half_height - label_size.width() - 0.5, |
162 | get_y() + 0.5f - half_height, | |
163 | label_size.width() + half_height, | |
164 | label_size.height()); | |
d7c0ca4a JH |
165 | } |
166 | ||
410f9c81 JH |
167 | QColor Trace::get_text_colour() const |
168 | { | |
169 | return (_colour.lightness() > 64) ? Qt::black : Qt::white; | |
170 | } | |
171 | ||
fe08b6e8 JH |
172 | void Trace::paint_axis(QPainter &p, int y, int left, int right) |
173 | { | |
174 | p.setPen(AxisPen); | |
175 | p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f)); | |
176 | } | |
177 | ||
91e8bf08 JH |
178 | void Trace::add_colour_option(QWidget *parent, QFormLayout *form) |
179 | { | |
180 | using pv::widgets::ColourButton; | |
181 | ||
182 | ColourButton *const colour_button = new ColourButton( | |
183 | TracePalette::Rows, TracePalette::Cols, parent); | |
184 | colour_button->set_palette(TracePalette::Colours); | |
185 | colour_button->set_colour(_colour); | |
186 | connect(colour_button, SIGNAL(selected(const QColor&)), | |
187 | this, SLOT(on_colour_changed(const QColor&))); | |
188 | ||
189 | form->addRow(tr("Colour"), colour_button); | |
190 | } | |
191 | ||
37fd11b1 JH |
192 | void Trace::create_popup_form() |
193 | { | |
194 | // Clear the layout | |
195 | ||
196 | // Transfer the layout and the child widgets to a temporary widget | |
197 | // which then goes out of scope destroying the layout and all the child | |
198 | // widgets. | |
199 | if (_popup_form) | |
200 | QWidget().setLayout(_popup_form); | |
201 | ||
202 | // Repopulate the popup | |
203 | _popup_form = new QFormLayout(_popup); | |
204 | _popup->setLayout(_popup_form); | |
205 | populate_popup_form(_popup, _popup_form); | |
206 | } | |
207 | ||
569d1e41 JH |
208 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) |
209 | { | |
68456dab JH |
210 | QLineEdit *const name_edit = new QLineEdit(parent); |
211 | name_edit->setText(_name); | |
212 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
213 | this, SLOT(on_text_changed(const QString&))); | |
214 | form->addRow(tr("Name"), name_edit); | |
91e8bf08 JH |
215 | |
216 | add_colour_option(parent, form); | |
569d1e41 JH |
217 | } |
218 | ||
20eaae39 JH |
219 | void Trace::on_popup_closed() |
220 | { | |
221 | _popup = NULL; | |
222 | _popup_form = NULL; | |
223 | } | |
224 | ||
68456dab JH |
225 | void Trace::on_text_changed(const QString &text) |
226 | { | |
227 | set_name(text); | |
228 | text_changed(); | |
229 | } | |
9b6378f1 | 230 | |
91e8bf08 JH |
231 | void Trace::on_colour_changed(const QColor &colour) |
232 | { | |
233 | set_colour(colour); | |
234 | colour_changed(); | |
235 | } | |
236 | ||
931f20b0 JH |
237 | } // namespace view |
238 | } // namespace pv |