:Publish Date: 2018-05-09

Dev Log 2018-05-09
==================

Multi-line text in text area gadgets is now completed. Getting the line height
and spacing correct was a bit trickier than expected. This may partially be my
misunderstanding how FreeType's data should be used. FreeType recommends a
baseline-to-baseline line spacing, but this was smaller than the sum of
ascender and descender distance in my test fonts, which seems like an error on
the font's part. I work around it by using either the height recommendation or
the ascender + descender distance, whichever is larger.

I moved debug grid drawing code out of ng's renderer, placing that burden on
the user's code instead. The debug grid shows evenly spaced lines on the x and
y axis. This is extremely useful for verifying things are the correct size and
location; I'm just not sure it belongs in the core renderer. Since the user can
hook the RENDER_CLEAR event and do whatever they want with the context, I'll
let user code handle it for now.

.. figure:: /_static/ng/2018-05-09_debug_grid.png

    Debug grid

Drawing the borders around nui gadgets is completed. This is done by drawing
the border to a texture in the nui rendering pass, then drawing the texture to
the display in the ng pass as usual. I tried drawing the border with drawing
mode GL_LINE_LOOP, but that didn't work as expected, seemingly adding an
unwanted vertex at the origin (center) of the texture. GL_LINES gives a
satisfactory result for now, but causes some visible disconnected pixels at the
junctions between lines, so I'll need to revisit later and figure out what I'm
doing wrong with GL_LINE_LOOP.

I cleaned up the drawing paths significantly, so now all entities are using the
same VBO model and vertex layout.

I installed `awstats <http://awstats.org>`_ on this site to get more information
about who might be reading.