Merge pull request #8 from ismailof/transparent_shadow

Transparent shadow

package/contents/config/config.qml

 /**
     Copyright 2016 Bill Binder <dxtwjb@gmail.com>
- 
+
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or

package/contents/config/main.xml

@@ -12,6 +12,9 @@
     <entry name="showBackground" type="Bool">
       <default>false</default>
     </entry>
+    <entry name="transparentShadow" type="Bool">
+      <default>false</default>
+    </entry>
     <entry name="dateFormat" type="int">
       <default>3</default>
     </entry>

package/contents/ui/LunaIcon.qml

@@ -19,6 +19,7 @@
 */
 
 import QtQuick 2.1
+import QtGraphicalEffects 1.12
 import org.kde.plasma.core 2.0 as PlasmaCore
 import org.kde.plasma.plasmoid 2.0
 
@@ -30,6 +31,8 @@ Item {
     property int phaseNumber: 0
     property int hemisphere: 0
     property bool showShadow: true
+    property bool transparentShadow: true
+
     property string lunarImage: ''
     property color diskColour: '#ffffff'
     property int lunarImageTweak: 0
@@ -58,12 +61,15 @@ Item {
         // deal with northern <-> southern hemisphere
         transformOrigin: Item.Center
         rotation: (hemisphere == 0 ? 0 : 180) - lunarImageTweak
+        visible: !transparentShadow
     }
 
     Canvas {
         id: shadow
         width: lunaSvgItem.width
         height: lunaSvgItem.height
+        visible: !transparentShadow
+
         property int hemisphere: lunaIcon.hemisphere
         property int theta: lunaIcon.theta
         property bool showShadow: lunaIcon.showShadow
@@ -189,4 +195,12 @@ Item {
             }
         }
     }
+
+    OpacityMask {
+        anchors.fill: lunaSvgItem
+        source: lunaSvgItem
+        maskSource: shadow
+        invert: true
+        visible: transparentShadow
+    }
 }

package/contents/ui/configGeneral.qml

@@ -26,6 +26,7 @@ Item {
     id: generalPage
 
     property alias cfg_hemisphere: hemisphere.currentIndex  // 0=North 1=South
+    property alias cfg_transparentShadow: transparentShadow.checked  // boolean
     property alias cfg_showBackground: showBackground.checked  // boolean
     property alias cfg_dateFormat: dateFormat.currentIndex // code: 0= 1= 2=...
     property alias cfg_dateFormatString: dateFormatString.text
@@ -83,6 +84,7 @@ Item {
               height: 200
               hemisphere: cfg_hemisphere
               showShadow: false
+              transparentShadow: false
               lunarImage: cfg_lunarImage
               lunarImageTweak: cfg_lunarImageTweak
               diskColour: cfg_diskColour
@@ -187,7 +189,9 @@ Item {
             maximumLength: 24
             visible: dateFormat.currentIndex == 4
         }
-
+        QtControls.Label {
+            text: i18n("Background")
+        }
         QtControls.CheckBox {
             id: showBackground
             text: i18n("Show background")
@@ -195,6 +199,9 @@ Item {
         QtControls.Label {
             text: ""
         }
-
+        QtControls.CheckBox {
+            id: transparentShadow
+            text: i18n("Transparent shadow")
+        }
     }
 }

package/contents/ui/main.qml

@@ -39,6 +39,7 @@ Item {
     property var currentPhase
 
     property bool showBackground: Plasmoid.configuration.showBackground
+    property bool transparentShadow: Plasmoid.configuration.transparentShadow
     property int hemisphere: Plasmoid.configuration.hemisphere
     property int dateFormat: Plasmoid.configuration.dateFormat
     property string dateFormatString: Plasmoid.configuration.dateFormatString
@@ -96,6 +97,7 @@ Item {
             hemisphere: hemisphere
             lunarImage: main.lunarImage
             lunarImageTweak: main.lunarImageTweak
+            transparentShadow: main.transparentShadow
             diskColour: main.diskColour
 
             anchors.fill: parent