Add a 320x320 NuttX logo image

ChangeLog.txt

@@ -392,4 +392,7 @@
   so that images can be scaled to any size desired (2013-10-15).
 * NxWM::CTaskbar:: Can now be configured to scale taskbasr icons using
   NxWidgets::CScaledImage (2013-10-15)
+* NxWidgets/libnxwidgets/src/glyph_nxlogo320x320.cxx:  Add a big, 320x320
+  NuttX logo image.  The older, smaller NuttX logo was renamed from
+  nxlogo to nxlogo160x160 in all places (2015-10-15).
 

UnitTests/CImage/cimage_main.cxx

@@ -185,7 +185,7 @@ int cimage_main(int argc, char *argv[])
 
   // Create an instance of the NuttX logo
 
-  CRlePaletteBitmap *nuttxBitmap = new CRlePaletteBitmap(&g_nuttxBitmap);
+  CRlePaletteBitmap *nuttxBitmap = new CRlePaletteBitmap(&g_nuttxBitmap160x160);
   updateMemoryUsage(&g_mmprevious, "After creating the bitmap");
 
   // Create a CImage instance

libnxwidgets/Makefile

@@ -66,7 +66,7 @@ CXXSRCS += cscrollingpanel.cxx cscrollingtextbox.cxx csliderhorizontal.cxx
 CXXSRCS += csliderhorizontalgrip.cxx cslidervertical.cxx csliderverticalgrip.cxx
 CXXSRCS += cstickybutton.cxx cstickybuttonarray.cxx ctabpanel.cxx ctextbox.cxx
 # Images
-CXXSRCS += glyph_nxlogo.cxx
+CXXSRCS += glyph_nxlogo160x160.cxx glyph_nxlogo320x320.cxx
 CXXSRCS += glyph_arrowdown.cxx glyph_checkboxon.cxx glyph_screendepthup.cxx
 CXXSRCS += glyph_arrowleft.cxx glyph_control.cxx glyph_screenflipdown.cxx
 CXXSRCS += glyph_arrowright.cxx glyph_cycle.cxx glyph_screenflipup.cxx

libnxwidgets/include/ctext.hxx

@@ -146,6 +146,12 @@ namespace NXWidgets
 
     CText(CNxFont *font, const CNxString &text, nxgl_coord_t width);
 
+    /**
+     * Destructor.
+     */
+
+    virtual ~CText(void) {}
+
     /**
      * Set the text in the string.
      *

libnxwidgets/include/glyphs.hxx

@@ -97,7 +97,8 @@ namespace NXWidgets
 
   // Global RLE Paletted Bitmaps
 
-  extern const struct SRlePaletteBitmap g_nuttxBitmap;
+  extern const struct SRlePaletteBitmap g_nuttxBitmap160x160;
+  extern const struct SRlePaletteBitmap g_nuttxBitmap320x320;
 
   // Global Simple Bitmaps
 

libnxwidgets/src/cscaledbitmap.cxx

@@ -179,6 +179,11 @@ const size_t CScaledBitmap::getStride(void) const
 /**
  * Get one row from the bit map image.
  *
+ *   REVISIT:  This algorithm is really intended to expand images.  Hence,
+ *   for example, interpolation is between row and row+1 and column and
+ *   column+1 in the original, unscaled image.  You would the interpolation
+ *   differently if you really wanted to sub-sample well.
+ *
  * @param x The offset into the row to get
  * @param y The row number to get
  * @param width The number of pixels to get from the row
@@ -580,6 +585,9 @@ bool CScaledBitmap::rowColor(FAR uint8_t *row, b16_t column,
       // between transparent and opaque regions.
 
       // Return the color closest to the requested position
+      //
+      // A fraction of < 0.5 would mean to use use mostly color1; a fraction
+      // greater than 0.5 would men to use mostly color2
 
       if (fraction < b16HALF)
         {