Add ability to change app font family & size (RedisInsight#3717)

Issue RedisInsight#3576

Author: uglide

src/app/app.cpp

@@ -4,6 +4,7 @@
 #include <QUrl>
 #include <QSysInfo>
 #include <QQmlContext>
+#include <QSettings>
 #include <QMessageBox>
 #include <easylogging++.h>
 #include <googlemp.h>
@@ -68,8 +69,21 @@ void Application::initAppInfo()
 
 void Application::initAppFonts()
 {
-    QFontDatabase::addApplicationFont("://fonts/OpenSans-Regular.ttc");
-    QFont defaultFont("OpenSans", 11);
+    QSettings settings;
+    QString appFont = settings.value("app/appFont", "Open Sans").toString();
+    int appFontSize = settings.value("app/appFontSize", 11).toInt();
+
+    if (appFont == "Open Sans") {
+        int result = QFontDatabase::addApplicationFont("://fonts/OpenSans.ttc");
+
+#ifdef Q_OS_LINUX
+        if (result == -1) {
+            appFont = "Ubuntu";
+        }
+#endif
+    }
+    qDebug() << "App font:" << appFont << appFontSize;
+    QFont defaultFont(appFont, appFontSize);
     QApplication::setFont(defaultFont);
 }
 

src/qml/GlobalSettings.qml

@@ -10,16 +10,6 @@ Dialog {
     id: root
     title: "Settings"
 
-    Settings {
-        id: globalSettings
-        category: "app"
-
-        property alias reopenNamespacesOnReload: nsReload.value
-        property alias enableKeySortingInTree: keySorting.value
-        property alias liveUpdateKeysLimit: liveKeyLimit.value
-        property alias liveUpdateInterval: liveUpdateInterval.value
-    }
-
     contentItem: Item {
         implicitWidth: 800
         implicitHeight: 600
@@ -29,7 +19,36 @@ Dialog {
             anchors.margins: 20
 
             Text {
-                text: "Connections Tree Settings"
+                text: "Appearance"
+                font.pixelSize: 20
+            }
+
+            ComboboxOption {
+                id: appFont
+
+                Layout.fillWidth: true
+                Layout.preferredHeight: 40
+
+                value: "Open Sans"
+                model: Qt.fontFamilies()
+                label: "Font"
+                description: ""
+            }
+
+            ComboboxOption {
+                id: appFontSize
+
+                Layout.fillWidth: true
+                Layout.preferredHeight: 40
+
+                model: ["8", "9", "10", "11", "12"]
+                value: "10"
+                label: "Font Size"
+                description: "in pixels"
+            }
+
+            Text {
+                text: "Connections Tree"
                 font.pixelSize: 20
             }
 
@@ -96,4 +115,16 @@ Dialog {
             }
         }
     }
+
+    Settings {
+        id: globalSettings
+        category: "app"
+
+        property alias reopenNamespacesOnReload: nsReload.value
+        property alias enableKeySortingInTree: keySorting.value
+        property alias liveUpdateKeysLimit: liveKeyLimit.value
+        property alias liveUpdateInterval: liveUpdateInterval.value
+        property alias appFont: appFont.value
+        property alias appFontSize: appFontSize.value
+    }
 }

src/qml/qml.qrc

@@ -30,7 +30,7 @@
         <file>value-editor/editors/editor.js</file>
         <file>3rdparty/php-unserialize-js/phpUnserialize.js</file>
         <file>console/QConsole.qml</file>
-        <file>console/BaseConsole.qml</file>        
+        <file>console/BaseConsole.qml</file>
         <file>console/Consoles.qml</file>
         <file>connections-tree/BetterTreeView.qml</file>
         <file>AppToolBar.qml</file>
@@ -41,5 +41,6 @@
         <file>settings/IntOption.qml</file>
         <file>bulk-operations/BulkOperationsDialog.qml</file>
         <file>value-editor/editors/formatters/json-tools.js</file>
+        <file>settings/ComboboxOption.qml</file>
     </qresource>
 </RCC>

src/qml/settings/ComboboxOption.qml

@@ -0,0 +1,54 @@
+import QtQuick 2.3
+import QtQuick.Layouts 1.1
+import QtQuick.Controls 1.2
+
+Item {
+    id: root
+    property string label
+    property string description
+    property string value
+    property alias model: val.model
+
+    onValueChanged: {        
+        if (val.currentText != root.value) {
+            val.currentIndex = val.find(root.value)
+        }
+    }
+
+    RowLayout {
+        anchors.fill: parent
+
+        ColumnLayout {
+            Layout.fillWidth: true
+            spacing: 1
+
+            Label {
+                Layout.fillWidth: true
+                text: root.label
+            }
+
+            Text {
+                color: "#cccccc"
+                text: root.description
+            }
+        }
+
+        ComboBox {
+            id: val
+
+            Layout.minimumWidth: 80
+
+            onActivated: {
+                if (index >= 0)
+                    root.value = textAt(index)
+            }
+
+            onCountChanged: {
+                if (model) {
+                    currentIndex = val.find(root.value)                    
+                }
+            }
+        }
+    }
+}
+