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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 "colorbutton.hpp" | |
21 | ||
22 | #include <cassert> | |
23 | ||
24 | #include <QApplication> | |
25 | #include <QColorDialog> | |
26 | #include <QPainter> | |
27 | ||
28 | namespace pv { | |
29 | namespace widgets { | |
30 | ||
31 | const int ColorButton::SwatchMargin = 7; | |
32 | ||
33 | ColorButton::ColorButton(QWidget *parent) : | |
34 | QPushButton("", parent), | |
35 | popup_(nullptr) | |
36 | { | |
37 | connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool))); | |
38 | } | |
39 | ||
40 | ColorButton::ColorButton(int rows, int cols, QWidget *parent) : | |
41 | QPushButton("", parent), | |
42 | popup_(new ColorPopup(rows, cols, this)) | |
43 | { | |
44 | connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool))); | |
45 | connect(popup_, SIGNAL(selected(int, int)), | |
46 | this, SLOT(on_selected(int, int))); | |
47 | } | |
48 | ||
49 | ColorPopup* ColorButton::popup() | |
50 | { | |
51 | return popup_; | |
52 | } | |
53 | ||
54 | const QColor& ColorButton::color() const | |
55 | { | |
56 | return cur_color_; | |
57 | } | |
58 | ||
59 | void ColorButton::set_color(QColor color) | |
60 | { | |
61 | cur_color_ = color; | |
62 | ||
63 | if (popup_) { | |
64 | const unsigned int rows = popup_->well_array().numRows(); | |
65 | const unsigned int cols = popup_->well_array().numCols(); | |
66 | ||
67 | for (unsigned int r = 0; r < rows; r++) | |
68 | for (unsigned int c = 0; c < cols; c++) | |
69 | if (popup_->well_array().cellBrush(r, c).color() == color) { | |
70 | popup_->well_array().setSelected(r, c); | |
71 | popup_->well_array().setCurrent(r, c); | |
72 | return; | |
73 | } | |
74 | } | |
75 | } | |
76 | ||
77 | void ColorButton::set_palette(const QColor *const palette) | |
78 | { | |
79 | assert(palette); | |
80 | assert(popup_); | |
81 | ||
82 | const unsigned int rows = popup_->well_array().numRows(); | |
83 | const unsigned int cols = popup_->well_array().numCols(); | |
84 | ||
85 | for (unsigned int r = 0; r < rows; r++) | |
86 | for (unsigned int c = 0; c < cols; c++) | |
87 | popup_->well_array().setCellBrush(r, c, QBrush(palette[r * cols + c])); | |
88 | } | |
89 | ||
90 | void ColorButton::on_clicked(bool) | |
91 | { | |
92 | if (popup_) { | |
93 | popup_->set_position(mapToGlobal(rect().center()), Popup::Bottom); | |
94 | popup_->show(); | |
95 | } else { | |
96 | QColorDialog dlg(this); | |
97 | dlg.setOption(QColorDialog::ShowAlphaChannel); | |
98 | dlg.setOption(QColorDialog::DontUseNativeDialog); | |
99 | connect(&dlg, SIGNAL(colorSelected(const QColor)), | |
100 | this, SLOT(on_color_selected(const QColor))); | |
101 | dlg.setCurrentColor(cur_color_); | |
102 | dlg.exec(); | |
103 | } | |
104 | } | |
105 | ||
106 | void ColorButton::on_selected(int row, int col) | |
107 | { | |
108 | assert(popup_); | |
109 | ||
110 | cur_color_ = popup_->well_array().cellBrush(row, col).color(); | |
111 | selected(cur_color_); | |
112 | } | |
113 | ||
114 | void ColorButton::on_color_selected(const QColor& color) | |
115 | { | |
116 | cur_color_ = color; | |
117 | selected(cur_color_); | |
118 | } | |
119 | ||
120 | void ColorButton::paintEvent(QPaintEvent *event) | |
121 | { | |
122 | QPushButton::paintEvent(event); | |
123 | ||
124 | QPainter p(this); | |
125 | ||
126 | const QRect r = rect().adjusted(SwatchMargin, SwatchMargin, | |
127 | -SwatchMargin, -SwatchMargin); | |
128 | p.setPen(QApplication::palette().color(QPalette::Dark)); | |
129 | p.setBrush(QBrush(cur_color_)); | |
130 | p.drawRect(r); | |
131 | } | |
132 | ||
133 | } // namespace widgets | |
134 | } // namespace pv |