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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 "colourbutton.h" | |
22 | ||
23 | namespace pv { | |
24 | namespace widgets { | |
25 | ||
26 | const int ColourButton::SwatchMargin = 7; | |
27 | ||
28 | ColourButton::ColourButton(int rows, int cols, QWidget *parent) : | |
29 | QPushButton("", parent), | |
30 | _popup(rows, cols, this) | |
31 | { | |
32 | connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool))); | |
33 | connect(&_popup, SIGNAL(selected(int, int)), | |
34 | this, SLOT(on_selected(int, int))); | |
35 | } | |
36 | ||
37 | ColourPopup& ColourButton::popup() | |
38 | { | |
39 | return _popup; | |
40 | } | |
41 | ||
42 | const QColor& ColourButton::colour() const | |
43 | { | |
44 | return _cur_colour; | |
45 | } | |
46 | ||
47 | void ColourButton::set_colour(QColor colour) | |
48 | { | |
49 | _cur_colour = colour; | |
50 | ||
51 | const unsigned int rows = _popup.well_array().numRows(); | |
52 | const unsigned int cols = _popup.well_array().numCols(); | |
53 | ||
54 | for (unsigned int r = 0; r < rows; r++) | |
55 | for (unsigned int c = 0; c < cols; c++) | |
56 | if (_popup.well_array().cellBrush(r, c).color() == | |
57 | colour) | |
58 | { | |
59 | _popup.well_array().setSelected(r, c); | |
60 | _popup.well_array().setCurrent(r, c); | |
61 | return; | |
62 | } | |
63 | } | |
64 | ||
65 | void ColourButton::set_palette(const QColor *const palette) | |
66 | { | |
67 | assert(palette); | |
68 | ||
69 | const unsigned int rows = _popup.well_array().numRows(); | |
70 | const unsigned int cols = _popup.well_array().numCols(); | |
71 | ||
72 | for (unsigned int r = 0; r < rows; r++) | |
73 | for (unsigned int c = 0; c < cols; c++) | |
74 | _popup.well_array().setCellBrush(r, c, | |
75 | QBrush(palette[r * cols + c])); | |
76 | } | |
77 | ||
78 | void ColourButton::on_clicked(bool) | |
79 | { | |
80 | _popup.set_position(mapToGlobal(rect().center()), Popup::Bottom); | |
81 | _popup.show(); | |
82 | } | |
83 | ||
84 | void ColourButton::on_selected(int row, int col) | |
85 | { | |
86 | _cur_colour = _popup.well_array().cellBrush(row, col).color(); | |
87 | selected(_cur_colour); | |
88 | } | |
89 | ||
90 | void ColourButton::paintEvent(QPaintEvent *e) | |
91 | { | |
92 | QPushButton::paintEvent(e); | |
93 | ||
94 | QPainter p(this); | |
95 | ||
96 | const QRect r = rect().adjusted(SwatchMargin, SwatchMargin, | |
97 | -SwatchMargin, -SwatchMargin); | |
98 | p.setPen(QApplication::palette().color(QPalette::Dark)); | |
99 | p.setBrush(QBrush(_cur_colour)); | |
100 | p.drawRect(r); | |
101 | } | |
102 | ||
103 | } // widgets | |
104 | } // pv |