Added menu entries and shortcuts to increase and decrease font sizes.

app/ApplicationSettings.qml

@@ -107,11 +107,22 @@ Item{
         onLoaded: handleFontChanged()
     }
 
-    property var fontlist: fontManager.item.fontlist
+    signal fontScalingChanged
     property var fontScalingList: fontManager.item.fontScalingList
+    property var fontScalingIndexes: [5,1,1]
+
+    function setScalingIndex(newScaling){
+        fontScalingIndexes[rasterization] = newScaling;
+        fontScalingChanged();
+        handleFontChanged();
+    }
+
+    function getScalingIndex(){
+        return fontScalingIndexes[rasterization];
+    }
 
     property var fontIndexes: [0,0,0]
-    property var fontScalingIndexes: [5,1,1]
+    property var fontlist: fontManager.item.fontlist
 
     function handleFontChanged(){
         if(!fontManager.item) return;

app/SettingsTerminalTab.qml

@@ -76,12 +76,12 @@ Tab{
                         value: updateIndex()
                         onValueChanged: {
                             if(!enabled) return; //Ugly and hacky solution. Look for a better solution.
-                            shadersettings.fontScalingIndexes[shadersettings.rasterization] = value;
+                            shadersettings.setScalingIndex(value);
-                            shadersettings.handleFontChanged();
                         }
                         function updateIndex(){
-                            value = shadersettings.fontScalingIndexes[shadersettings.rasterization];
+                            value = shadersettings.getScalingIndex();
                         }
+                        Component.onCompleted: shadersettings.fontScalingChanged.connect(updateIndex);
                     }
                     Text{
                         text: shadersettings.fontScalingList[scalingChanger.value].toFixed(2)

app/main.qml

@@ -69,6 +69,25 @@ ApplicationWindow{
         shortcut: "Ctrl+Shift+V"
         onTriggered: terminal.pasteClipboard()
     }
+    Action{
+        id: zoomIn
+        text: qsTr("&Zoom In")
+        shortcut: "Ctrl++"
+        onTriggered: {
+            var oldScaling = shadersettings.fontScalingIndexes[shadersettings.rasterization];
+            var maxScalingIndex = shadersettings.fontScalingList.length - 1;
+            shadersettings.setScalingIndex(Math.min(oldScaling + 1, maxScalingIndex));
+        }
+    }
+    Action{
+        id: zoomOut
+        text: qsTr("&Zoom Out")
+        shortcut: "Ctrl+-"
+        onTriggered: {
+            var oldScaling = shadersettings.fontScalingIndexes[shadersettings.rasterization];
+            shadersettings.setScalingIndex(Math.max(oldScaling - 1, 0));
+        }
+    }
 
     menuBar: MenuBar {
         id: menubar
@@ -89,6 +108,9 @@ ApplicationWindow{
             title: qsTr("View")
             visible: shadersettings.fullscreen ? false : true
             MenuItem {action: fullscreenAction}
+            MenuSeparator{}
+            MenuItem {action: zoomIn}
+            MenuItem {action: zoomOut}
         }
     }
     ApplicationSettings{