static void
html_get_back_color (GnmStyle const *style, guint *r, guint *g, guint *b)
{
GnmColor const *color = gnm_style_get_back_color (style);
*r = GO_COLOR_UINT_R (color->go_color);
*g = GO_COLOR_UINT_G (color->go_color);
*b = GO_COLOR_UINT_B (color->go_color);
}
gboolean
gnumeric_background_set (GnmStyle const *mstyle, cairo_t *cr,
gboolean const is_selected, GtkStyle *theme)
{
int pattern;
/*
* Draw the background if the PATTERN is non 0
* Draw a stipple too if the pattern is > 1
*/
pattern = gnm_style_get_pattern (mstyle);
if (pattern > 0) {
GOPattern gopat;
cairo_pattern_t *crpat;
gopat.pattern = patterns[pattern - 1];
gopat.fore = gnm_style_get_pattern_color (mstyle)->go_color;
gopat.back = gnm_style_get_back_color (mstyle)->go_color;
if (is_selected) {
GOColor light;
light = theme? GO_COLOR_FROM_GDK (theme->light[GTK_STATE_SELECTED]): GO_COLOR_FROM_RGB (230, 230, 250);
gopat.fore = GO_COLOR_INTERPOLATE (light, gopat.fore, .5);
gopat.back = GO_COLOR_INTERPOLATE (light, gopat.back, .5);
}
crpat = go_pattern_create_cairo_pattern (&gopat, cr);
cairo_set_source (cr, crpat);
cairo_pattern_destroy (crpat);
return TRUE;
} else if (is_selected) {
if (theme == NULL)
cairo_set_source_rgb
(cr, .901960784, .901960784, .980392157);
else {
GdkColor color = theme->light[GTK_STATE_SELECTED];
cairo_set_source_rgb
(cr, gnm_get_light (color.red),
gnm_get_light (color.green),
gnm_get_light (color.blue));
}
}
return FALSE;
}
gboolean
gnumeric_background_set_gtk (GnmStyle const *mstyle, cairo_t *context)
{
int pattern;
/*
* Draw the background if the PATTERN is non 0
* Draw a stipple too if the pattern is > 1
*/
pattern = gnm_style_get_pattern (mstyle);
if (pattern > 0) {
GnmColor const *back_col = gnm_style_get_back_color (mstyle);
g_return_val_if_fail (back_col != NULL, FALSE);
/* Support printing grey scale patterns.
* This effectively applies a brightness threshold to get
* the desired results.
* The array used provides good real-life results.
* The true_grey array is theoretically correct but doesn't
* distinguish the shades clearly.
*
* Note: The first element of the grey array isn't used.
*
* FIXME: This code assumes the pattern colour is black, which
* is normally true (gnumeric selects it automatically).
* But correctly we should mix the pattern color against
* the background color. We handle the easy (pattern == 24)
* case below.
*/
if (pattern >= 1 && pattern <= 6) {
static double const grey[] = { 1.0, 1.0, .30, .45, .60, .75, .90};
#if 0
static double const true_grey[] = { 1.0, 1.0, .0625, .125, .25, .50, .75};
#endif
GOColor c = back_col->go_color;
double f = grey[pattern];
cairo_set_source_rgb (context,
GO_COLOR_DOUBLE_R (c) * f,
GO_COLOR_DOUBLE_G (c) * f,
GO_COLOR_DOUBLE_B (c) * f);
}
/* This is a special case where the user has selected
* 'foreground solid', so we need to paint it the pattern
* color.
*/
else if (pattern == 24) {
GnmColor const *pat_col = gnm_style_get_pattern_color (mstyle);
g_return_val_if_fail (pat_col != NULL, FALSE);
cairo_set_source_rgba (context,
GO_COLOR_TO_CAIRO (pat_col->go_color));
} else {
GOPattern gopat;
cairo_pattern_t *crpat;
gopat.pattern = patterns[pattern - 1];
gopat.fore = gnm_style_get_pattern_color (mstyle)->go_color;
gopat.back = gnm_style_get_back_color (mstyle)->go_color;
crpat = go_pattern_create_cairo_pattern (&gopat, context);
cairo_set_source (context, crpat);
cairo_pattern_destroy (crpat);
}
return TRUE;
}
return FALSE;
}
