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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> |
daa54986 | 23 | #include <QFontMetrics> |
d3feec23 SA |
24 | #include <QString> |
25 | ||
6f925ba9 | 26 | using std::map; |
d0c0573b | 27 | using std::vector; |
6f925ba9 | 28 | |
bf9f1268 SA |
29 | namespace pv { |
30 | ||
e91fb166 | 31 | const QString GlobalSettings::Key_View_ZoomToFitDuringAcq = "View_ZoomToFitDuringAcq"; |
28ceff25 | 32 | const QString GlobalSettings::Key_View_ZoomToFitAfterAcq = "View_ZoomToFitAfterAcq"; |
ffc00fdd | 33 | const QString GlobalSettings::Key_View_TriggerIsZeroTime = "View_TriggerIsZeroTime"; |
bf9f1268 | 34 | const QString GlobalSettings::Key_View_ColouredBG = "View_ColouredBG"; |
87a97d8a | 35 | const QString GlobalSettings::Key_View_StickyScrolling = "View_StickyScrolling"; |
051ba3b3 | 36 | const QString GlobalSettings::Key_View_ShowSamplingPoints = "View_ShowSamplingPoints"; |
8ad61f40 | 37 | const QString GlobalSettings::Key_View_ShowAnalogMinorGrid = "View_ShowAnalogMinorGrid"; |
90ee1ed9 | 38 | const QString GlobalSettings::Key_View_ConversionThresholdDispMode = "View_ConversionThresholdDispMode"; |
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"; |
bcb4c327 | 42 | const QString GlobalSettings::Key_Log_BufferSize = "Log_BufferSize"; |
bf9f1268 | 43 | |
d0c0573b | 44 | vector<GlobalSettingsInterface*> GlobalSettings::callbacks_; |
2cca9ebf | 45 | bool GlobalSettings::tracking_ = false; |
6f925ba9 | 46 | map<QString, QVariant> GlobalSettings::tracked_changes_; |
bf9f1268 SA |
47 | |
48 | GlobalSettings::GlobalSettings() : | |
49 | QSettings() | |
50 | { | |
51 | beginGroup("Settings"); | |
52 | } | |
53 | ||
c031de4b SA |
54 | void GlobalSettings::set_defaults_where_needed() |
55 | { | |
28ceff25 SA |
56 | // Enable zoom-to-fit after acquisition by default |
57 | if (!contains(Key_View_ZoomToFitAfterAcq)) | |
58 | setValue(Key_View_ZoomToFitAfterAcq, true); | |
59 | ||
c031de4b SA |
60 | // Enable coloured trace backgrounds by default |
61 | if (!contains(Key_View_ColouredBG)) | |
62 | setValue(Key_View_ColouredBG, true); | |
df842d4f SA |
63 | |
64 | // Enable showing sampling points by default | |
65 | if (!contains(Key_View_ShowSamplingPoints)) | |
66 | setValue(Key_View_ShowSamplingPoints, true); | |
daa54986 SA |
67 | |
68 | if (!contains(Key_View_DefaultDivHeight)) | |
69 | setValue(Key_View_DefaultDivHeight, | |
70 | 3 * QFontMetrics(QApplication::font()).height()); | |
48051ccb SA |
71 | |
72 | if (!contains(Key_View_DefaultLogicHeight)) | |
73 | setValue(Key_View_DefaultLogicHeight, | |
74 | 2 * QFontMetrics(QApplication::font()).height()); | |
bcb4c327 SA |
75 | |
76 | // Default to 500 lines of backlog | |
77 | if (!contains(Key_Log_BufferSize)) | |
78 | setValue(Key_Log_BufferSize, 500); | |
c031de4b SA |
79 | } |
80 | ||
d0c0573b | 81 | void GlobalSettings::add_change_handler(GlobalSettingsInterface *cb) |
bf9f1268 | 82 | { |
d0c0573b SA |
83 | callbacks_.push_back(cb); |
84 | } | |
85 | ||
86 | void GlobalSettings::remove_change_handler(GlobalSettingsInterface *cb) | |
87 | { | |
88 | for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++) | |
89 | if (*cb_it == cb) { | |
90 | callbacks_.erase(cb_it); | |
91 | break; | |
92 | } | |
bf9f1268 SA |
93 | } |
94 | ||
95 | void GlobalSettings::setValue(const QString &key, const QVariant &value) | |
96 | { | |
2cca9ebf SA |
97 | // Save previous value if we're tracking changes, |
98 | // not altering an already-existing saved setting | |
99 | if (tracking_) | |
100 | tracked_changes_.emplace(key, QSettings::value(key)); | |
101 | ||
bf9f1268 SA |
102 | QSettings::setValue(key, value); |
103 | ||
d0c0573b SA |
104 | // Call all registered callbacks |
105 | for (GlobalSettingsInterface *cb : callbacks_) | |
106 | cb->on_setting_changed(key, value); | |
bf9f1268 SA |
107 | } |
108 | ||
2cca9ebf SA |
109 | void GlobalSettings::start_tracking() |
110 | { | |
111 | tracking_ = true; | |
112 | tracked_changes_.clear(); | |
113 | } | |
114 | ||
115 | void GlobalSettings::stop_tracking() | |
116 | { | |
117 | tracking_ = false; | |
118 | tracked_changes_.clear(); | |
119 | } | |
120 | ||
121 | void GlobalSettings::undo_tracked_changes() | |
122 | { | |
123 | tracking_ = false; | |
124 | ||
125 | for (auto entry : tracked_changes_) | |
126 | setValue(entry.first, entry.second); | |
127 | ||
128 | tracked_changes_.clear(); | |
129 | } | |
bf9f1268 | 130 | |
d3feec23 SA |
131 | void GlobalSettings::store_gvariant(QSettings &settings, GVariant *v) |
132 | { | |
133 | const GVariantType *var_type = g_variant_get_type(v); | |
134 | char *var_type_str = g_variant_type_dup_string(var_type); | |
135 | ||
136 | QByteArray var_data = QByteArray((const char*)g_variant_get_data(v), | |
137 | g_variant_get_size(v)); | |
138 | ||
139 | settings.setValue("value", var_data); | |
140 | settings.setValue("type", var_type_str); | |
141 | ||
142 | g_free(var_type_str); | |
143 | } | |
144 | ||
145 | GVariant* GlobalSettings::restore_gvariant(QSettings &settings) | |
146 | { | |
147 | QString raw_type = settings.value("type").toString(); | |
148 | GVariantType *var_type = g_variant_type_new(raw_type.toUtf8()); | |
149 | ||
150 | QByteArray data = settings.value("value").toByteArray(); | |
151 | ||
152 | gpointer var_data = g_memdup((gconstpointer)data.constData(), | |
153 | (guint)data.size()); | |
154 | ||
155 | GVariant *value = g_variant_new_from_data(var_type, var_data, | |
156 | data.size(), false, g_free, var_data); | |
157 | ||
158 | g_variant_type_free(var_type); | |
159 | ||
160 | return value; | |
161 | } | |
162 | ||
163 | ||
bf9f1268 | 164 | } // namespace pv |