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Make read-only lines in account register window (r22109) somewhat more visible by changing the background color slightly.

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@22116 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Christian Stimming
2012-03-24 22:34:32 +00:00
parent 84379bac27
commit af3cec54df
1 changed files with 67 additions and 0 deletions
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67
src/register/register-gnome/gnucash-grid.c
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@@ -367,6 +367,57 @@ gnucash_draw_hatching (GdkDrawable *drawable, GdkGC *gc,
x + 2, y + 2, x + 2 + height / 3, y + 2 + height / 3);
}
#ifdef READONLY_LINES_WITH_CHANGED_FG_COLOR
/** For a given byte value, multiply the difference to 0xFF by a rational number,
specified by numerator and denominator. This is some simple integer arithmetics
for the case when we don't even need a conversion to floating point and
backwards. */
static guint8 inc_intensity_byte(guint8 input, int numerator, int denominator)
{
guint8 result_inv, result;
guint8 input_inv = 0xff - input;
result_inv = (input_inv * numerator) / denominator;
result = 0xff - result_inv;
return result;
}
/** For a given RGB value, increase the color intensity for each of the three
colors indentically by 10 percent (i.e. make them "less black" and "more gray")
and return this changed RGB value. */
static guint32 inc_intensity_10percent(guint32 argb)
{
guint32 result =
(inc_intensity_byte((argb & 0x00FF0000) >> 16, 8, 10) << 16)
+ (inc_intensity_byte((argb & 0x0000FF00) >> 8, 8, 10) << 8)
+ (inc_intensity_byte(argb & 0x000000FF, 8, 10));
return result;
}
#endif
/** For a given byte value, multiply the value by a rational number,
specified by numerator and denominator. This is some simple integer arithmetics
for the case when we don't even need a conversion to floating point and
backwards. */
static guint8 dec_intensity_byte(guint8 input, int numerator, int denominator)
{
guint8 result;
result = (input * numerator) / denominator;
return result;
}
/** For a given RGB value, decrease the color intensity for each of the three
colors indentically by 10 percent and return this changed RGB value. */
static guint32 dec_intensity_10percent(guint32 argb)
{
// Multiply each single byte by 9/10 i.e. by 0.9 which decreases the
// intensity by 10 percent.
guint32 result =
(dec_intensity_byte((argb & 0x00FF0000) >> 16, 9, 10) << 16)
+ (dec_intensity_byte((argb & 0x0000FF00) >> 8, 9, 10) << 8)
+ (dec_intensity_byte(argb & 0x000000FF, 9, 10));
return result;
}
static void
draw_cell (GnucashGrid *grid,
SheetBlock *block,
@@ -400,6 +451,13 @@ draw_cell (GnucashGrid *grid,
else
{
argb = gnc_table_get_bg_color (table, virt_loc, &hatching);
// Are we in a read-only row? Then make the background color somewhat more gray.
if ((virt_loc.phys_row_offset == (block->style->nrows - 1))
&& (table->model->dividing_row_upper >= 0)
&& (virt_loc.vcell_loc.virt_row < table->model->dividing_row_upper))
{
argb = dec_intensity_10percent(argb);
}
bg_color = gnucash_color_argb_to_gdk (argb);
}
@@ -516,6 +574,15 @@ draw_cell (GnucashGrid *grid,
font = pango_font_description_copy (pango_context_get_font_description (context));
argb = gnc_table_get_fg_color (table, virt_loc);
#ifdef READONLY_LINES_WITH_CHANGED_FG_COLOR
// Are we in a read-only row? Then make the foreground color somewhat less black
if ((virt_loc.phys_row_offset == (block->style->nrows - 1))
&& (table->model->dividing_row_upper >= 0)
&& (virt_loc.vcell_loc.virt_row < table->model->dividing_row_upper))
{
argb = inc_intensity_10percent(argb);
}
#endif
fg_color = gnucash_color_argb_to_gdk (argb);
gdk_gc_set_foreground (grid->gc, fg_color);