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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 <cassert> | |
21 | #include <cstdint> | |
22 | ||
23 | #include <QSpinBox> | |
24 | ||
25 | #include "int.hpp" | |
26 | ||
27 | using boost::optional; | |
28 | using std::max; | |
29 | using std::min; | |
30 | using std::pair; | |
31 | ||
32 | namespace pv { | |
33 | namespace prop { | |
34 | ||
35 | Int::Int(QString name, | |
36 | QString desc, | |
37 | QString suffix, | |
38 | optional< pair<int64_t, int64_t> > range, | |
39 | Getter getter, | |
40 | Setter setter) : | |
41 | Property(name, desc, getter, setter), | |
42 | suffix_(suffix), | |
43 | range_(range), | |
44 | spin_box_(nullptr) | |
45 | { | |
46 | } | |
47 | ||
48 | QWidget* Int::get_widget(QWidget *parent, bool auto_commit) | |
49 | { | |
50 | int64_t int_val = 0, range_min = 0; | |
51 | uint64_t range_max = 0; | |
52 | ||
53 | if (spin_box_) | |
54 | return spin_box_; | |
55 | ||
56 | if (!getter_) | |
57 | return nullptr; | |
58 | ||
59 | value_ = getter_(); | |
60 | ||
61 | GVariant *value = value_.gobj(); | |
62 | if (!value) | |
63 | return nullptr; | |
64 | ||
65 | spin_box_ = new QSpinBox(parent); | |
66 | spin_box_->setSuffix(suffix_); | |
67 | ||
68 | const GVariantType *const type = g_variant_get_type(value); | |
69 | assert(type); | |
70 | ||
71 | if (g_variant_type_equal(type, G_VARIANT_TYPE_BYTE)) { | |
72 | int_val = g_variant_get_byte(value); | |
73 | range_min = 0, range_max = UINT8_MAX; | |
74 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT16)) { | |
75 | int_val = g_variant_get_int16(value); | |
76 | range_min = INT16_MIN, range_max = INT16_MAX; | |
77 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT16)) { | |
78 | int_val = g_variant_get_uint16(value); | |
79 | range_min = 0, range_max = UINT16_MAX; | |
80 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT32)) { | |
81 | int_val = g_variant_get_int32(value); | |
82 | range_min = INT32_MIN, range_max = INT32_MAX; | |
83 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT32)) { | |
84 | int_val = g_variant_get_uint32(value); | |
85 | range_min = 0, range_max = UINT32_MAX; | |
86 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT64)) { | |
87 | int_val = g_variant_get_int64(value); | |
88 | range_min = INT64_MIN, range_max = INT64_MAX; | |
89 | } else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT64)) { | |
90 | int_val = g_variant_get_uint64(value); | |
91 | range_min = 0, range_max = UINT64_MAX; | |
92 | } else { | |
93 | // Unexpected value type. | |
94 | assert(false); | |
95 | } | |
96 | ||
97 | // @todo Sigrok supports 64-bit quantities, but Qt does not have a | |
98 | // standard widget to allow the values to be modified over the full | |
99 | // 64-bit range on 32-bit machines. To solve the issue we need a | |
100 | // custom widget. | |
101 | ||
102 | range_min = max(range_min, (int64_t)INT_MIN); | |
103 | range_max = min(range_max, (uint64_t)INT_MAX); | |
104 | ||
105 | if (range_) | |
106 | spin_box_->setRange((int)range_->first, (int)range_->second); | |
107 | else | |
108 | spin_box_->setRange((int)range_min, (int)range_max); | |
109 | ||
110 | spin_box_->setValue((int)int_val); | |
111 | ||
112 | if (auto_commit) | |
113 | connect(spin_box_, SIGNAL(valueChanged(int)), | |
114 | this, SLOT(on_value_changed(int))); | |
115 | ||
116 | return spin_box_; | |
117 | } | |
118 | ||
119 | void Int::commit() | |
120 | { | |
121 | assert(setter_); | |
122 | ||
123 | if (!spin_box_) | |
124 | return; | |
125 | ||
126 | GVariant *new_value = nullptr; | |
127 | const GVariantType *const type = g_variant_get_type(value_.gobj()); | |
128 | assert(type); | |
129 | ||
130 | if (g_variant_type_equal(type, G_VARIANT_TYPE_BYTE)) | |
131 | new_value = g_variant_new_byte(spin_box_->value()); | |
132 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT16)) | |
133 | new_value = g_variant_new_int16(spin_box_->value()); | |
134 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT16)) | |
135 | new_value = g_variant_new_uint16(spin_box_->value()); | |
136 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT32)) | |
137 | new_value = g_variant_new_int32(spin_box_->value()); | |
138 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT32)) | |
139 | new_value = g_variant_new_uint32(spin_box_->value()); | |
140 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT64)) | |
141 | new_value = g_variant_new_int64(spin_box_->value()); | |
142 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT64)) | |
143 | new_value = g_variant_new_uint64(spin_box_->value()); | |
144 | else { | |
145 | // Unexpected value type. | |
146 | assert(false); | |
147 | } | |
148 | ||
149 | assert(new_value); | |
150 | ||
151 | value_ = Glib::VariantBase(new_value); | |
152 | ||
153 | setter_(value_); | |
154 | } | |
155 | ||
156 | void Int::on_value_changed(int) | |
157 | { | |
158 | commit(); | |
159 | } | |
160 | ||
161 | } // namespace prop | |
162 | } // namespace pv |