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colorchooser: factor out a private method to get the checkboard pattern

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And use it in the color widgets.
This commit is contained in:
Cosimo Cecchi
2012-02-14 12:16:56 -05:00
committed by Matthias Clasen
parent 453aecd346
commit 19da38b811
5 changed files with 30 additions and 69 deletions
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24
gtk/gtkcolorscale.c
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@ -21,6 +21,7 @@
#include "gtkcolorscaleprivate.h"
#include "gtkcolorchooserprivate.h"
#include "gtkcolorutils.h"
#include "gtkorientable.h"
#include "gtkstylecontext.h"
@ -44,27 +45,6 @@ enum
G_DEFINE_TYPE (GtkColorScale, gtk_color_scale, GTK_TYPE_SCALE)
static cairo_pattern_t *
get_checkered_pattern (void)
{
/* need to respect pixman's stride being a multiple of 4 */
static unsigned char data[8] = { 0xFF, 0x00, 0x00, 0x00,
0x00, 0xFF, 0x00, 0x00 };
static cairo_surface_t *checkered = NULL;
cairo_pattern_t *pattern;
if (checkered == NULL)
checkered = cairo_image_surface_create_for_data (data,
CAIRO_FORMAT_A8,
2, 2, 4);
pattern = cairo_pattern_create_for_surface (checkered);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST);
return pattern;
}
static void
create_surface (GtkColorScale *scale)
{
@ -152,7 +132,7 @@ create_surface (GtkColorScale *scale)
cairo_paint (cr);
cairo_set_source_rgb (cr, 0.66, 0.66, 0.66);
pattern = get_checkered_pattern ();
pattern = _gtk_color_chooser_get_checkered_pattern ();
cairo_matrix_init_scale (&matrix, 0.125, 0.125);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_mask (cr, pattern);