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Couple of minor updates to restore accuracy.

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[originally from svn r6268]
This commit is contained in:
Simon Tatham
2005-09-04 12:31:04 +00:00
parent 41b9855da9
commit 6ee8a4d71e
1 changed files with 8 additions and 9 deletions
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@ -1551,14 +1551,13 @@ functions. This enables a single front end to switch between
multiple implementations of the drawing API if necessary. For
example, the Windows API supplies a printing mechanism integrated
into the same GDI which deals with drawing in windows, and therefore
it is likely (although as yet unimplemented in Puzzles) that the
same API implementation can handle both drawing and printing; but on
Unix, the most common way for applications to print is by producing
PostScript output directly, and although it would be \e{possible} to
write a single (say) \cw{draw_rect()} function which checked a
global flag to decide whether to do GTK drawing operations or output
PostScript to a file, it's much nicer to have two separate functions
and switch between them as appropriate.
the same API implementation can handle both drawing and printing;
but on Unix, the most common way for applications to print is by
producing PostScript output directly, and although it would be
\e{possible} to write a single (say) \cw{draw_rect()} function which
checked a global flag to decide whether to do GTK drawing operations
or output PostScript to a file, it's much nicer to have two separate
functions and switch between them as appropriate.
When drawing, the puzzle window is indexed by pixel coordinates,
with the top left pixel defined as \cw{(0,0)} and the bottom right
@ -4051,7 +4050,7 @@ Then the main redraw loop will look something like this
\c if (x == ui->cursor_x && y == ui->cursor_y)
\c value |= CURSOR;
\c if (ds->symbol_at_position[y][x] != value) {
\c symbol_drawing_subroutine(fe, ds, x, y, value);
\c symbol_drawing_subroutine(dr, ds, x, y, value);
\c ds->symbol_at_position[y][x] = value;
\c }
\c }