LibGUI: Add GIcon::default_icon(name).

This is a convenience helper to instantiate a GIcon like so:

    auto icon = GIcon::default_icon("filetype-image");

This will give you the "filetype-image" icon in both 16x16 and 32x32 sizes.

2 files changed, 9 insertions, 0 deletions

diff --git a/LibGUI/GIcon.cpp b/LibGUI/GIcon.cpp
index 16224f1a97..0a2955ee7f 100644
--- a/LibGUI/GIcon.cpp
+++ b/LibGUI/GIcon.cpp
@@ -61,3 +61,10 @@ void GIconImpl::set_bitmap_for_size(int size, RetainPtr<GraphicsBitmap>&& bitmap
     }
     m_bitmaps.set(size, move(bitmap));
 }
+
+GIcon GIcon::default_icon(const String& name)
+{
+    auto bitmap16 = GraphicsBitmap::load_from_file(String::format("/res/icons/16x16/%s.png", name.characters()));
+    auto bitmap32 = GraphicsBitmap::load_from_file(String::format("/res/icons/32x32/%s.png", name.characters()));
+    return GIcon(move(bitmap16), move(bitmap32));
+}
diff --git a/LibGUI/GIcon.h b/LibGUI/GIcon.h
index bfb48496ba..c0b3d15cdf 100644
--- a/LibGUI/GIcon.h
+++ b/LibGUI/GIcon.h
@@ -25,6 +25,8 @@ public:
     GIcon(const GIcon&);
     ~GIcon() { }
 
+    static GIcon default_icon(const String&);
+
     GIcon& operator=(const GIcon& other)
     {
         m_impl = other.m_impl.copy_ref();