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bf9f1268 SA |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net> | |
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 "globalsettings.hpp" | |
21 | ||
daa54986 | 22 | #include <QApplication> |
d3feec23 | 23 | #include <QByteArray> |
daa54986 | 24 | #include <QFontMetrics> |
d3feec23 SA |
25 | #include <QString> |
26 | ||
6f925ba9 UH |
27 | using std::function; |
28 | using std::map; | |
29 | using std::multimap; | |
30 | ||
bf9f1268 SA |
31 | namespace pv { |
32 | ||
e91fb166 | 33 | const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq"; |
28ceff25 | 34 | const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq"; |
bf9f1268 | 35 | const QString GlobalSettings::Key_View_ColouredBG = "View_ColouredBG"; |
87a97d8a | 36 | const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling"; |
051ba3b3 | 37 | const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints"; |
8ad61f40 | 38 | const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid"; |
daa54986 | 39 | const QString GlobalSettings::Key_View_DefaultDivHeight = "View_DefaultDivHeight"; |
48051ccb | 40 | const QString GlobalSettings::Key_View_DefaultLogicHeight = "View_DefaultLogicHeight"; |
1cc1c8de | 41 | const QString GlobalSettings::Key_Dec_InitialStateConfigurable = "Dec_InitialStateConfigurable"; |
bf9f1268 | 42 | |
6f925ba9 | 43 | multimap< QString, function<void(QVariant)> > GlobalSettings::callbacks_; |
2cca9ebf | 44 | bool GlobalSettings::tracking_ = false; |
6f925ba9 | 45 | map<QString, QVariant> GlobalSettings::tracked_changes_; |
bf9f1268 SA |
46 | |
47 | GlobalSettings::GlobalSettings() : | |
48 | QSettings() | |
49 | { | |
50 | beginGroup("Settings"); | |
51 | } | |
52 | ||
c031de4b SA |
53 | void GlobalSettings::set_defaults_where_needed() |
54 | { | |
28ceff25 SA |
55 | // Enable zoom-to-fit after acquisition by default |
56 | if (!contains(Key_View_ZoomToFitAfterAcq)) | |
57 | setValue(Key_View_ZoomToFitAfterAcq, true); | |
58 | ||
c031de4b SA |
59 | // Enable coloured trace backgrounds by default |
60 | if (!contains(Key_View_ColouredBG)) | |
61 | setValue(Key_View_ColouredBG, true); | |
df842d4f SA |
62 | |
63 | // Enable showing sampling points by default | |
64 | if (!contains(Key_View_ShowSamplingPoints)) | |
65 | setValue(Key_View_ShowSamplingPoints, true); | |
daa54986 SA |
66 | |
67 | if (!contains(Key_View_DefaultDivHeight)) | |
68 | setValue(Key_View_DefaultDivHeight, | |
69 | 3 * QFontMetrics(QApplication::font()).height()); | |
48051ccb SA |
70 | |
71 | if (!contains(Key_View_DefaultLogicHeight)) | |
72 | setValue(Key_View_DefaultLogicHeight, | |
73 | 2 * QFontMetrics(QApplication::font()).height()); | |
c031de4b SA |
74 | } |
75 | ||
bf9f1268 | 76 | void GlobalSettings::register_change_handler(const QString key, |
6f925ba9 | 77 | function<void(QVariant)> cb) |
bf9f1268 SA |
78 | { |
79 | callbacks_.emplace(key, cb); | |
80 | } | |
81 | ||
82 | void GlobalSettings::setValue(const QString &key, const QVariant &value) | |
83 | { | |
2cca9ebf SA |
84 | // Save previous value if we're tracking changes, |
85 | // not altering an already-existing saved setting | |
86 | if (tracking_) | |
87 | tracked_changes_.emplace(key, QSettings::value(key)); | |
88 | ||
bf9f1268 SA |
89 | QSettings::setValue(key, value); |
90 | ||
91 | // Call all registered callbacks for this key | |
92 | auto range = callbacks_.equal_range(key); | |
93 | ||
94 | for (auto it = range.first; it != range.second; it++) | |
95 | it->second(value); | |
96 | } | |
97 | ||
2cca9ebf SA |
98 | void GlobalSettings::start_tracking() |
99 | { | |
100 | tracking_ = true; | |
101 | tracked_changes_.clear(); | |
102 | } | |
103 | ||
104 | void GlobalSettings::stop_tracking() | |
105 | { | |
106 | tracking_ = false; | |
107 | tracked_changes_.clear(); | |
108 | } | |
109 | ||
110 | void GlobalSettings::undo_tracked_changes() | |
111 | { | |
112 | tracking_ = false; | |
113 | ||
114 | for (auto entry : tracked_changes_) | |
115 | setValue(entry.first, entry.second); | |
116 | ||
117 | tracked_changes_.clear(); | |
118 | } | |
bf9f1268 | 119 | |
d3feec23 SA |
120 | void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v) |
121 | { | |
122 | const GVariantType *var_type = g_variant_get_type(v); | |
123 | char *var_type_str = g_variant_type_dup_string(var_type); | |
124 | ||
125 | QByteArray var_data = QByteArray((const char*)g_variant_get_data(v), | |
126 | g_variant_get_size(v)); | |
127 | ||
128 | settings.setValue("value", var_data); | |
129 | settings.setValue("type", var_type_str); | |
130 | ||
131 | g_free(var_type_str); | |
132 | } | |
133 | ||
134 | GVariant* GlobalSettings::restore_gvariant(QSettings &settings) | |
135 | { | |
136 | QString raw_type = settings.value("type").toString(); | |
137 | GVariantType *var_type = g_variant_type_new(raw_type.toUtf8()); | |
138 | ||
139 | QByteArray data = settings.value("value").toByteArray(); | |
140 | ||
141 | gpointer var_data = g_memdup((gconstpointer)data.constData(), | |
142 | (guint)data.size()); | |
143 | ||
144 | GVariant *value = g_variant_new_from_data(var_type, var_data, | |
145 | data.size(), false, g_free, var_data); | |
146 | ||
147 | g_variant_type_free(var_type); | |
148 | ||
149 | return value; | |
150 | } | |
151 | ||
152 | ||
bf9f1268 | 153 | } // namespace pv |