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css: Implement repeating linear gradients

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This commit is contained in:
Benjamin Otte 2012-01-17 11:44:07 +01:00
parent 5df9b0188a
commit 811e848832
3 changed files with 18 additions and 4 deletions
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3
gtk/gtkcssimage.c
View File

@ -324,7 +324,8 @@ gtk_css_image_get_parser_type (GtkCssParser *parser)
{ "url", _gtk_css_image_url_get_type },
{ "-gtk-gradient", _gtk_css_image_gradient_get_type },
{ "-gtk-win32-theme-part", _gtk_css_image_win32_get_type },
{ "linear-gradient", _gtk_css_image_linear_get_type }
{ "linear-gradient", _gtk_css_image_linear_get_type },
{ "repeating-linear-gradient", _gtk_css_image_linear_get_type }
};
guint i;

14
gtk/gtkcssimagelinear.c
View File

@ -168,6 +168,9 @@ gtk_css_image_linear_draw (GtkCssImage *image,
gtk_css_image_linear_get_start_end (linear, length, &start, &end);
pattern = cairo_pattern_create_linear (x * (start - 0.5), y * (start - 0.5),
x * (end - 0.5), y * (end - 0.5));
if (linear->repeating)
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
else
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD);
offset = start;
@ -230,7 +233,11 @@ gtk_css_image_linear_parse (GtkCssImage *image,
GtkCssImageLinear *linear = GTK_CSS_IMAGE_LINEAR (image);
guint i;
if (!_gtk_css_parser_try (parser, "linear-gradient(", TRUE))
if (_gtk_css_parser_try (parser, "repeating-linear-gradient(", TRUE))
linear->repeating = TRUE;
else if (_gtk_css_parser_try (parser, "linear-gradient(", TRUE))
linear->repeating = FALSE;
else
{
_gtk_css_parser_error (parser, "Not a linear gradient");
return FALSE;
@ -356,7 +363,11 @@ gtk_css_image_linear_print (GtkCssImage *image,
/* XXX: Do these need to be prinatable? */
g_return_if_fail (!linear->is_computed);
if (linear->repeating)
g_string_append (string, "repeating-linear-gradient(");
else
g_string_append (string, "linear-gradient(");
if (linear->angle.unit == GTK_CSS_NUMBER)
{
guint side = linear->angle.value;
@ -421,6 +432,7 @@ gtk_css_image_linear_compute (GtkCssImage *image,
copy = g_object_new (GTK_TYPE_CSS_IMAGE_LINEAR, NULL);
copy->is_computed = TRUE;
copy->repeating = linear->repeating;
_gtk_css_number_compute (&copy->angle, &linear->angle, context);

1
gtk/gtkcssimagelinearprivate.h
View File

@ -51,6 +51,7 @@ struct _GtkCssImageLinear
GtkCssNumber angle; /* warning: We use GTK_CSS_NUMBER as an enum for the corners */
GArray *stops;
guint is_computed :1;
guint repeating :1;
};
struct _GtkCssImageLinearClass