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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 <stdint.h> | |
22 | #include <assert.h> | |
23 | ||
24 | #include <QSpinBox> | |
25 | ||
26 | #include "int.hpp" | |
27 | ||
28 | using boost::optional; | |
29 | using std::max; | |
30 | using std::min; | |
31 | using std::pair; | |
32 | ||
33 | namespace pv { | |
34 | namespace prop { | |
35 | ||
36 | Int::Int(QString name, | |
37 | QString suffix, | |
38 | optional< pair<int64_t, int64_t> > range, | |
39 | Getter getter, | |
40 | Setter setter) : | |
41 | Property(name, getter, setter), | |
42 | suffix_(suffix), | |
43 | range_(range), | |
44 | spin_box_(NULL) | |
45 | { | |
46 | } | |
47 | ||
48 | Int::~Int() | |
49 | { | |
50 | } | |
51 | ||
52 | QWidget* Int::get_widget(QWidget *parent, bool auto_commit) | |
53 | { | |
54 | int64_t int_val = 0, range_min = 0, range_max = 0; | |
55 | ||
56 | if (spin_box_) | |
57 | return spin_box_; | |
58 | ||
59 | if (!getter_) | |
60 | return NULL; | |
61 | ||
62 | value_ = getter_(); | |
63 | ||
64 | GVariant *value = value_.gobj(); | |
65 | if (!value) | |
66 | return NULL; | |
67 | ||
68 | spin_box_ = new QSpinBox(parent); | |
69 | spin_box_->setSuffix(suffix_); | |
70 | ||
71 | const GVariantType *const type = g_variant_get_type(value); | |
72 | assert(type); | |
73 | ||
74 | if (g_variant_type_equal(type, G_VARIANT_TYPE_BYTE)) | |
75 | { | |
76 | int_val = g_variant_get_byte(value); | |
77 | range_min = 0, range_max = UINT8_MAX; | |
78 | } | |
79 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT16)) | |
80 | { | |
81 | int_val = g_variant_get_int16(value); | |
82 | range_min = INT16_MIN, range_max = INT16_MAX; | |
83 | } | |
84 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT16)) | |
85 | { | |
86 | int_val = g_variant_get_uint16(value); | |
87 | range_min = 0, range_max = UINT16_MAX; | |
88 | } | |
89 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT32)) | |
90 | { | |
91 | int_val = g_variant_get_int32(value); | |
92 | range_min = INT32_MIN, range_max = INT32_MAX; | |
93 | } | |
94 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT32)) | |
95 | { | |
96 | int_val = g_variant_get_uint32(value); | |
97 | range_min = 0, range_max = UINT32_MAX; | |
98 | } | |
99 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT64)) | |
100 | { | |
101 | int_val = g_variant_get_int64(value); | |
102 | range_min = INT64_MIN, range_max = INT64_MAX; | |
103 | } | |
104 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT64)) | |
105 | { | |
106 | int_val = g_variant_get_uint64(value); | |
107 | range_min = 0, range_max = UINT64_MAX; | |
108 | } | |
109 | else | |
110 | { | |
111 | // Unexpected value type. | |
112 | assert(0); | |
113 | } | |
114 | ||
115 | // @todo Sigrok supports 64-bit quantities, but Qt does not have a | |
116 | // standard widget to allow the values to be modified over the full | |
117 | // 64-bit range on 32-bit machines. To solve the issue we need a | |
118 | // custom widget. | |
119 | ||
120 | range_min = max(range_min, (int64_t)INT_MIN); | |
121 | range_max = min(range_max, (int64_t)INT_MAX); | |
122 | ||
123 | if (range_) | |
124 | spin_box_->setRange((int)range_->first, (int)range_->second); | |
125 | else | |
126 | spin_box_->setRange((int)range_min, (int)range_max); | |
127 | ||
128 | spin_box_->setValue((int)int_val); | |
129 | ||
130 | if (auto_commit) | |
131 | connect(spin_box_, SIGNAL(valueChanged(int)), | |
132 | this, SLOT(on_value_changed(int))); | |
133 | ||
134 | return spin_box_; | |
135 | } | |
136 | ||
137 | void Int::commit() | |
138 | { | |
139 | assert(setter_); | |
140 | ||
141 | if (!spin_box_) | |
142 | return; | |
143 | ||
144 | GVariant *new_value = NULL; | |
145 | const GVariantType *const type = g_variant_get_type(value_.gobj()); | |
146 | assert(type); | |
147 | ||
148 | if (g_variant_type_equal(type, G_VARIANT_TYPE_BYTE)) | |
149 | new_value = g_variant_new_byte(spin_box_->value()); | |
150 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT16)) | |
151 | new_value = g_variant_new_int16(spin_box_->value()); | |
152 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT16)) | |
153 | new_value = g_variant_new_uint16(spin_box_->value()); | |
154 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT32)) | |
155 | new_value = g_variant_new_int32(spin_box_->value()); | |
156 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT32)) | |
157 | new_value = g_variant_new_int32(spin_box_->value()); | |
158 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_INT64)) | |
159 | new_value = g_variant_new_int64(spin_box_->value()); | |
160 | else if (g_variant_type_equal(type, G_VARIANT_TYPE_UINT64)) | |
161 | new_value = g_variant_new_uint64(spin_box_->value()); | |
162 | else | |
163 | { | |
164 | // Unexpected value type. | |
165 | assert(0); | |
166 | } | |
167 | ||
168 | assert(new_value); | |
169 | ||
170 | value_ = Glib::VariantBase(new_value); | |
171 | ||
172 | setter_(value_); | |
173 | } | |
174 | ||
175 | void Int::on_value_changed(int) | |
176 | { | |
177 | commit(); | |
178 | } | |
179 | ||
180 | } // prop | |
181 | } // pv |