ScxmlEditor: Themable, HighDPI-able export-canvas icon

Change-Id: I966dee7c22903921d814141bc749b39dec7cf8d7
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/scxmleditor/common/common.qrc

@@ -15,6 +15,7 @@
         <file>images/fullnamespace.png</file>
         <file>images/history.png</file>
         <file>images/icon-export-canvas.png</file>
+        <file>images/icon-export-canvas@2x.png</file>
         <file>images/icon-fit-screen.png</file>
         <file>images/icon-pan.png</file>
         <file>images/icon-zoom-in.png</file>

src/plugins/scxmleditor/plugin_interface/actionhandler.cpp

@@ -56,7 +56,7 @@ ActionHandler::ActionHandler(QObject *parent)
         { Utils::Icon({{":/utils/images/editcut.png",  Utils::Theme::IconsBaseColor}}), AH::tr("Cut"), AH::tr("Cut (Ctrl + X)"), "Ctrl+X", false },
         { Utils::Icon({{":/utils/images/editpaste.png",  Utils::Theme::IconsBaseColor}}), AH::tr("Paste"), AH::tr("Paste (Ctrl + V)"), "Ctrl+V", false },
         { Utils::Icons::SNAPSHOT_TOOLBAR, AH::tr("Screenshot"), AH::tr("Screenshot (Ctrl + Shift + C)"), "Ctrl+Shift+C", false },
-        { Utils::Icon(":/scxmleditor/images/icon-export-canvas.png"), AH::tr("Export to Image"), AH::tr("Export to Image"), "Ctrl+Shift+E", false },
+        { Utils::Icon({{":/scxmleditor/images/icon-export-canvas.png",  Utils::Theme::IconsBaseColor}}), AH::tr("Export to Image"), AH::tr("Export to Image"), "Ctrl+Shift+E", false },
         { Utils::Icon(":/scxmleditor/images/fullnamespace.png"), AH::tr("Toggle Full Namespace"), AH::tr("Toggle Full Namespace"), "Ctrl+Shift+N", true },
 
         { Utils::Icon(":/scxmleditor/images/align_left.png"), AH::tr("Align Left"), AH::tr("Align Left (Ctrl+L,1)"), "Ctrl+L,1", false },

src/tools/icons/qtcreatoricons.svg

@@ -3680,6 +3680,60 @@
          inkscape:connector-curvature="0"
          sodipodi:nodetypes="cc" />
     </g>
+    <g
+       transform="translate(128,0)"
+       style="display:inline"
+       id="src/plugins/scxmleditor/common/images/icon-export-canvas">
+      <rect
+         style="fill:#ffffff;fill-opacity:1"
+         x="1228"
+         y="568"
+         width="16"
+         height="16"
+         id="rect6782-96-0-0-7-8-1-0-4-0-1-7-9-1" />
+      <path
+         style="display:inline;fill:#ffffff;stroke:#000000"
+         d="m 1231.5,570.5 6,0 3,3 0,9 -9,0 z"
+         id="path5168-9-0"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cccccc" />
+      <path
+         id="path5395"
+         style="fill:none;stroke:#ffffff;stroke-width:0.5"
+         d="m 1230.5,570.19616 c 0.7537,0.30603 1.4871,0.80218 2.1105,1.42819 m -2.5289,0.0848 c 0.9971,0.19177 2.056,1.54867 2.4887,2.36904 l -2.0781,2.1718 3.0078,0"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cccccc" />
+      <path
+         style="display:inline;fill:none;stroke:#000000"
+         d="m 1237.5,570.5 0,3 3,0"
+         id="path5172-7-3"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="ccc" />
+      <path
+         style="fill:none;stroke:#000000"
+         d="m 1229,570.5 c 3.1056,0.69368 3.8892,2.71353 5,4.5"
+         id="path4741-3"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cc" />
+      <path
+         style="fill:#000000"
+         d="m 1235,576 -4,0 4,-4 z"
+         id="path4743-2"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cccc" />
+      <path
+         id="rect5364-4"
+         style="fill:none;stroke:#000000;stroke-width:0.5"
+         d="m 1233.25,578.25 2.5,0 0,2.5 -2.5,0 z m 3,-3 2.5,0 0,2.5 -2.5,0 z"
+         inkscape:connector-curvature="0"
+         sodipodi:nodetypes="cccccccccc" />
+      <path
+         sodipodi:nodetypes="ccc"
+         inkscape:connector-curvature="0"
+         id="path5391"
+         d="m 1236,579.75 1.75,0 0,-1.75"
+         style="fill:none;stroke:#808080;stroke-width:0.5" />
+    </g>
   </g>
   <g
      inkscape:groupmode="layer"