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gtk: Implement -gtk-icon-filter

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This uses the new GskColorMatrixNode to implement a filter that applies
to icons. It's meant to replace -gtk-icon-effect.
This commit is contained in:
Benjamin Otte 2016-12-31 01:15:52 +01:00
parent 8973191278
commit 2645b5a7d7
6 changed files with 941 additions and 6 deletions
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2
gtk/Makefile.am
View File

@ -401,6 +401,7 @@ gtk_private_h_sources = \
gtkcssdimensionvalueprivate.h \
gtkcsseasevalueprivate.h \
gtkcssenumvalueprivate.h \
gtkcssfiltervalueprivate.h \
gtkcssgadgetprivate.h \
gtkcssiconthemevalueprivate.h \
gtkcssimagebuiltinprivate.h \
@ -668,6 +669,7 @@ gtk_base_c_sources = \
gtkcssdimensionvalue.c \
gtkcsseasevalue.c \
gtkcssenumvalue.c \
gtkcssfiltervalue.c \
gtkcssgadget.c \
gtkcssiconthemevalue.c \
gtkcssimage.c \

863
gtk/gtkcssfiltervalue.c Normal file
View File

@ -0,0 +1,863 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2017 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkcssbgsizevalueprivate.h"
#include <math.h>
#include <string.h>
#include "gtkcssfiltervalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
typedef union _GtkCssFilter GtkCssFilter;
typedef enum {
GTK_CSS_FILTER_NONE,
GTK_CSS_FILTER_BLUR,
GTK_CSS_FILTER_BRIGHTNESS,
GTK_CSS_FILTER_CONTRAST,
GTK_CSS_FILTER_DROP_SHADOW,
GTK_CSS_FILTER_GRAYSCALE,
GTK_CSS_FILTER_HUE_ROTATE,
GTK_CSS_FILTER_INVERT,
GTK_CSS_FILTER_OPACITY,
GTK_CSS_FILTER_SATURATE,
GTK_CSS_FILTER_SEPIA
} GtkCssFilterType;
union _GtkCssFilter {
GtkCssFilterType type;
struct {
GtkCssFilterType type;
GtkCssValue *value;
} brightness, contrast, grayscale, hue_rotate, invert, opacity, saturate, sepia;
};
struct _GtkCssValue {
GTK_CSS_VALUE_BASE
guint n_filters;
GtkCssFilter filters[1];
};
static GtkCssValue * gtk_css_filter_value_alloc (guint n_values);
static gboolean gtk_css_filter_value_is_none (const GtkCssValue *value);
static void
gtk_css_filter_clear (GtkCssFilter *filter)
{
switch (filter->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
_gtk_css_value_unref (filter->brightness.value);
break;
case GTK_CSS_FILTER_CONTRAST:
_gtk_css_value_unref (filter->contrast.value);
break;
case GTK_CSS_FILTER_GRAYSCALE:
_gtk_css_value_unref (filter->grayscale.value);
break;
case GTK_CSS_FILTER_HUE_ROTATE:
_gtk_css_value_unref (filter->hue_rotate.value);
break;
case GTK_CSS_FILTER_INVERT:
_gtk_css_value_unref (filter->invert.value);
break;
case GTK_CSS_FILTER_OPACITY:
_gtk_css_value_unref (filter->opacity.value);
break;
case GTK_CSS_FILTER_SATURATE:
_gtk_css_value_unref (filter->saturate.value);
break;
case GTK_CSS_FILTER_SEPIA:
_gtk_css_value_unref (filter->sepia.value);
break;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
break;
}
}
static void
gtk_css_filter_init_identity (GtkCssFilter *filter,
GtkCssFilterType type)
{
switch (type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
filter->brightness.value = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_CONTRAST:
filter->contrast.value = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_GRAYSCALE:
filter->grayscale.value = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_HUE_ROTATE:
filter->hue_rotate.value = _gtk_css_number_value_new (0, GTK_CSS_DEG);
break;
case GTK_CSS_FILTER_INVERT:
filter->invert.value = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_OPACITY:
filter->opacity.value = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_SATURATE:
filter->saturate.value = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_SEPIA:
filter->sepia.value = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
break;
}
filter->type = type;
}
#define R 0.2126
#define G 0.7152
#define B 0.0722
static void
gtk_css_filter_get_matrix (const GtkCssFilter *filter,
graphene_matrix_t *matrix,
graphene_vec4_t *offset)
{
double value;
switch (filter->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
value = _gtk_css_number_value_get (filter->brightness.value, 1.0);
graphene_matrix_init_scale (matrix, value, value, value);
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
break;
case GTK_CSS_FILTER_CONTRAST:
value = _gtk_css_number_value_get (filter->contrast.value, 1.0);
graphene_matrix_init_scale (matrix, value, value, value);
graphene_vec4_init (offset, 0.5 - 0.5 * value, 0.5 - 0.5 * value, 0.5 - 0.5 * value, 0.0);
break;
case GTK_CSS_FILTER_GRAYSCALE:
value = _gtk_css_number_value_get (filter->grayscale.value, 1.0);
graphene_matrix_init_from_float (matrix, (float[16]) {
1.0 - (1.0 - R) * value, R * value, R * value, 0.0,
G * value, 1.0 - (1.0 - G) * value, G * value, 0.0,
B * value, B * value, 1.0 - (1.0 - B) * value, 0.0,
0.0, 0.0, 0.0, 1.0
});
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
break;
case GTK_CSS_FILTER_HUE_ROTATE:
{
double c, s;
value = _gtk_css_number_value_get (filter->grayscale.value, 1.0) * G_PI / 180.0;
c = cos (value);
s = sin (value);
graphene_matrix_init_from_float (matrix, (float[16]) {
0.213 + 0.787 * c - 0.213 * s,
0.213 - 0.213 * c + 0.143 * s,
0.213 - 0.213 * c - 0.787 * s,
0,
0.715 - 0.715 * c - 0.715 * s,
0.715 + 0.285 * c + 0.140 * s,
0.715 - 0.715 * c + 0.715 * s,
0,
0.072 - 0.072 * c + 0.928 * s,
0.072 - 0.072 * c - 0.283 * s,
0.072 + 0.928 * c + 0.072 * s,
0,
0, 0, 0, 1
});
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
}
break;
case GTK_CSS_FILTER_INVERT:
value = _gtk_css_number_value_get (filter->invert.value, 1.0);
graphene_matrix_init_scale (matrix, 1.0 - 2 * value, 1.0 - 2 * value, 1.0 - 2 * value);
graphene_vec4_init (offset, value, value, value, 0.0);
break;
case GTK_CSS_FILTER_OPACITY:
value = _gtk_css_number_value_get (filter->invert.value, 1.0);
graphene_matrix_init_from_float (matrix, (float[16]) {
1.0, 0.0, 0.0, 0.0,
0.0, 1.0, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, value
});
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
break;
case GTK_CSS_FILTER_SATURATE:
value = _gtk_css_number_value_get (filter->saturate.value, 1.0);
graphene_matrix_init_from_float (matrix, (float[16]) {
R + (1.0 - R) * value, R - R * value, R - R * value, 0.0,
G - G * value, G + (1.0 - G) * value, G - G * value, 0.0,
B - B * value, B - B * value, B + (1.0 - B) * value, 0.0,
0.0, 0.0, 0.0, 1.0
});
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
break;
case GTK_CSS_FILTER_SEPIA:
value = _gtk_css_number_value_get (filter->sepia.value, 1.0);
graphene_matrix_init_from_float (matrix, (float[16]) {
1.0 - 0.607 * value, 0.349 * value, 0.272 * value, 0.0,
0.769 * value, 1.0 - 0.314 * value, 0.534 * value, 0.0,
0.189 * value, 0.168 * value, 1.0 - 0.869 * value, 0.0,
0.0, 0.0, 0.0, 1.0
});
graphene_vec4_init (offset, 0.0, 0.0, 0.0, 0.0);
break;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
break;
}
}
#undef R
#undef G
#undef B
static void
gtk_css_filter_value_compute_matrix (const GtkCssValue *value,
graphene_matrix_t *matrix,
graphene_vec4_t *offset)
{
graphene_matrix_t m, m2;
graphene_vec4_t o, o2;
guint i;
gtk_css_filter_get_matrix (&value->filters[0], matrix, offset);
for (i = 1; i < value->n_filters; i++)
{
gtk_css_filter_get_matrix (&value->filters[i], &m, &o);
graphene_matrix_multiply (matrix, &m, &m2);
graphene_matrix_transform_vec4 (&m, offset, &o2);
graphene_matrix_init_from_matrix (matrix, &m2);
graphene_vec4_add (&o, &o2, offset);
}
}
static void
gtk_css_value_filter_free (GtkCssValue *value)
{
guint i;
for (i = 0; i < value->n_filters; i++)
{
gtk_css_filter_clear (&value->filters[i]);
}
g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssFilter) * (value->n_filters - 1), value);
}
/* returns TRUE if dest == src */
static gboolean
gtk_css_filter_compute (GtkCssFilter *dest,
GtkCssFilter *src,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
dest->type = src->type;
switch (src->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
dest->brightness.value = _gtk_css_value_compute (src->brightness.value, property_id, provider, style, parent_style);
return dest->brightness.value == src->brightness.value;
case GTK_CSS_FILTER_CONTRAST:
dest->contrast.value = _gtk_css_value_compute (src->contrast.value, property_id, provider, style, parent_style);
return dest->contrast.value == src->contrast.value;
case GTK_CSS_FILTER_GRAYSCALE:
dest->grayscale.value = _gtk_css_value_compute (src->grayscale.value, property_id, provider, style, parent_style);
return dest->grayscale.value == src->grayscale.value;
case GTK_CSS_FILTER_HUE_ROTATE:
dest->hue_rotate.value = _gtk_css_value_compute (src->hue_rotate.value, property_id, provider, style, parent_style);
return dest->hue_rotate.value == src->hue_rotate.value;
case GTK_CSS_FILTER_INVERT:
dest->invert.value = _gtk_css_value_compute (src->invert.value, property_id, provider, style, parent_style);
return dest->invert.value == src->invert.value;
case GTK_CSS_FILTER_OPACITY:
dest->opacity.value = _gtk_css_value_compute (src->opacity.value, property_id, provider, style, parent_style);
return dest->opacity.value == src->opacity.value;
case GTK_CSS_FILTER_SATURATE:
dest->saturate.value = _gtk_css_value_compute (src->saturate.value, property_id, provider, style, parent_style);
return dest->saturate.value == src->saturate.value;
case GTK_CSS_FILTER_SEPIA:
dest->sepia.value = _gtk_css_value_compute (src->sepia.value, property_id, provider, style, parent_style);
return dest->sepia.value == src->sepia.value;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
return FALSE;
}
}
static GtkCssValue *
gtk_css_value_filter_compute (GtkCssValue *value,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkCssValue *result;
gboolean changes;
guint i;
/* Special case the 99% case of "none" */
if (gtk_css_filter_value_is_none (value))
return _gtk_css_value_ref (value);
changes = FALSE;
result = gtk_css_filter_value_alloc (value->n_filters);
for (i = 0; i < value->n_filters; i++)
{
changes |= !gtk_css_filter_compute (&result->filters[i],
&value->filters[i],
property_id,
provider,
style,
parent_style);
}
if (!changes)
{
_gtk_css_value_unref (result);
result = _gtk_css_value_ref (value);
}
return result;
}
static gboolean
gtk_css_filter_equal (const GtkCssFilter *filter1,
const GtkCssFilter *filter2)
{
if (filter1->type != filter2->type)
return FALSE;
switch (filter1->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
return _gtk_css_value_equal (filter1->brightness.value, filter2->brightness.value);
case GTK_CSS_FILTER_CONTRAST:
return _gtk_css_value_equal (filter1->contrast.value, filter2->contrast.value);
case GTK_CSS_FILTER_GRAYSCALE:
return _gtk_css_value_equal (filter1->grayscale.value, filter2->grayscale.value);
case GTK_CSS_FILTER_HUE_ROTATE:
return _gtk_css_value_equal (filter1->hue_rotate.value, filter2->hue_rotate.value);
case GTK_CSS_FILTER_INVERT:
return _gtk_css_value_equal (filter1->invert.value, filter2->invert.value);
case GTK_CSS_FILTER_OPACITY:
return _gtk_css_value_equal (filter1->opacity.value, filter2->opacity.value);
case GTK_CSS_FILTER_SATURATE:
return _gtk_css_value_equal (filter1->saturate.value, filter2->saturate.value);
case GTK_CSS_FILTER_SEPIA:
return _gtk_css_value_equal (filter1->sepia.value, filter2->sepia.value);
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
return FALSE;
}
}
static gboolean
gtk_css_value_filter_equal (const GtkCssValue *value1,
const GtkCssValue *value2)
{
const GtkCssValue *larger;
guint i, n;
n = MIN (value1->n_filters, value2->n_filters);
for (i = 0; i < n; i++)
{
if (!gtk_css_filter_equal (&value1->filters[i], &value2->filters[i]))
return FALSE;
}
larger = value1->n_filters > value2->n_filters ? value1 : value2;
for (; i < larger->n_filters; i++)
{
GtkCssFilter filter;
gtk_css_filter_init_identity (&filter, larger->filters[i].type);
if (!gtk_css_filter_equal (&larger->filters[i], &filter))
{
gtk_css_filter_clear (&filter);
return FALSE;
}
gtk_css_filter_clear (&filter);
}
return TRUE;
}
static void
gtk_css_filter_transition (GtkCssFilter *result,
const GtkCssFilter *start,
const GtkCssFilter *end,
guint property_id,
double progress)
{
result->type = start->type;
switch (start->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
result->brightness.value = _gtk_css_value_transition (start->brightness.value, end->brightness.value, property_id, progress);
break;
case GTK_CSS_FILTER_CONTRAST:
result->contrast.value = _gtk_css_value_transition (start->contrast.value, end->contrast.value, property_id, progress);
break;
case GTK_CSS_FILTER_GRAYSCALE:
result->grayscale.value = _gtk_css_value_transition (start->grayscale.value, end->grayscale.value, property_id, progress);
break;
case GTK_CSS_FILTER_HUE_ROTATE:
result->hue_rotate.value = _gtk_css_value_transition (start->hue_rotate.value, end->hue_rotate.value, property_id, progress);
break;
case GTK_CSS_FILTER_INVERT:
result->invert.value = _gtk_css_value_transition (start->invert.value, end->invert.value, property_id, progress);
break;
case GTK_CSS_FILTER_OPACITY:
result->opacity.value = _gtk_css_value_transition (start->opacity.value, end->opacity.value, property_id, progress);
break;
case GTK_CSS_FILTER_SATURATE:
result->saturate.value = _gtk_css_value_transition (start->saturate.value, end->saturate.value, property_id, progress);
break;
case GTK_CSS_FILTER_SEPIA:
result->sepia.value = _gtk_css_value_transition (start->sepia.value, end->sepia.value, property_id, progress);
break;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
break;
}
}
static GtkCssValue *
gtk_css_value_filter_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
GtkCssValue *result;
guint i, n;
if (gtk_css_filter_value_is_none (start))
{
if (gtk_css_filter_value_is_none (end))
return _gtk_css_value_ref (start);
n = 0;
}
else if (gtk_css_filter_value_is_none (end))
{
n = 0;
}
else
{
n = MIN (start->n_filters, end->n_filters);
}
/* Check filters are compatible. If not, transition between
* their result matrices.
*/
for (i = 0; i < n; i++)
{
if (start->filters[i].type != end->filters[i].type)
{
/* XXX: can we improve this? */
return NULL;
}
}
result = gtk_css_filter_value_alloc (MAX (start->n_filters, end->n_filters));
for (i = 0; i < n; i++)
{
gtk_css_filter_transition (&result->filters[i],
&start->filters[i],
&end->filters[i],
property_id,
progress);
}
for (; i < start->n_filters; i++)
{
GtkCssFilter filter;
gtk_css_filter_init_identity (&filter, start->filters[i].type);
gtk_css_filter_transition (&result->filters[i],
&start->filters[i],
&filter,
property_id,
progress);
gtk_css_filter_clear (&filter);
}
for (; i < end->n_filters; i++)
{
GtkCssFilter filter;
gtk_css_filter_init_identity (&filter, end->filters[i].type);
gtk_css_filter_transition (&result->filters[i],
&filter,
&end->filters[i],
property_id,
progress);
gtk_css_filter_clear (&filter);
}
g_assert (i == MAX (start->n_filters, end->n_filters));
return result;
}
static void
gtk_css_filter_print (const GtkCssFilter *filter,
GString *string)
{
switch (filter->type)
{
case GTK_CSS_FILTER_BRIGHTNESS:
g_string_append (string, "brightness(");
_gtk_css_value_print (filter->brightness.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_CONTRAST:
g_string_append (string, "contrast(");
_gtk_css_value_print (filter->contrast.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_GRAYSCALE:
g_string_append (string, "grayscale(");
_gtk_css_value_print (filter->grayscale.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_HUE_ROTATE:
g_string_append (string, "hue-rotate(");
_gtk_css_value_print (filter->hue_rotate.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_INVERT:
g_string_append (string, "invert(");
_gtk_css_value_print (filter->invert.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_OPACITY:
g_string_append (string, "opacity(");
_gtk_css_value_print (filter->opacity.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_SATURATE:
g_string_append (string, "saturate(");
_gtk_css_value_print (filter->saturate.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_SEPIA:
g_string_append (string, "sepia(");
_gtk_css_value_print (filter->sepia.value, string);
g_string_append (string, ")");
break;
case GTK_CSS_FILTER_NONE:
case GTK_CSS_FILTER_BLUR:
case GTK_CSS_FILTER_DROP_SHADOW:
default:
g_assert_not_reached ();
break;
}
}
static void
gtk_css_value_filter_print (const GtkCssValue *value,
GString *string)
{
guint i;
if (gtk_css_filter_value_is_none (value))
{
g_string_append (string, "none");
return;
}
for (i = 0; i < value->n_filters; i++)
{
if (i > 0)
g_string_append_c (string, ' ');
gtk_css_filter_print (&value->filters[i], string);
}
}
static const GtkCssValueClass GTK_CSS_VALUE_FILTER = {
gtk_css_value_filter_free,
gtk_css_value_filter_compute,
gtk_css_value_filter_equal,
gtk_css_value_filter_transition,
gtk_css_value_filter_print
};
static GtkCssValue none_singleton = { &GTK_CSS_VALUE_FILTER, 1, 0, { { GTK_CSS_FILTER_NONE } } };
static GtkCssValue *
gtk_css_filter_value_alloc (guint n_filters)
{
GtkCssValue *result;
g_return_val_if_fail (n_filters > 0, NULL);
result = _gtk_css_value_alloc (&GTK_CSS_VALUE_FILTER, sizeof (GtkCssValue) + sizeof (GtkCssFilter) * (n_filters - 1));
result->n_filters = n_filters;
return result;
}
GtkCssValue *
gtk_css_filter_value_new_none (void)
{
return _gtk_css_value_ref (&none_singleton);
}
static gboolean
gtk_css_filter_value_is_none (const GtkCssValue *value)
{
return value->n_filters == 0;
}
static gboolean
gtk_css_filter_parse (GtkCssFilter *filter,
GtkCssParser *parser)
{
if (_gtk_css_parser_try (parser, "brightness(", TRUE))
{
filter->type = GTK_CSS_FILTER_BRIGHTNESS;
filter->brightness.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->brightness.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "contrast(", TRUE))
{
filter->type = GTK_CSS_FILTER_CONTRAST;
filter->contrast.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->contrast.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "grayscale(", TRUE))
{
filter->type = GTK_CSS_FILTER_GRAYSCALE;
filter->grayscale.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->grayscale.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "hue-rotate(", TRUE))
{
filter->type = GTK_CSS_FILTER_HUE_ROTATE;
filter->hue_rotate.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_ANGLE);
if (filter->hue_rotate.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "invert(", TRUE))
{
filter->type = GTK_CSS_FILTER_INVERT;
filter->invert.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->invert.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "opacity(", TRUE))
{
filter->type = GTK_CSS_FILTER_OPACITY;
filter->opacity.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->opacity.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "saturate(", TRUE))
{
filter->type = GTK_CSS_FILTER_SATURATE;
filter->saturate.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->saturate.value == NULL)
return FALSE;
}
else if (_gtk_css_parser_try (parser, "sepia(", TRUE))
{
filter->type = GTK_CSS_FILTER_SEPIA;
filter->sepia.value = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_NUMBER | GTK_CSS_PARSE_PERCENT);
if (filter->sepia.value == NULL)
return FALSE;
}
else
{
_gtk_css_parser_error (parser, "unknown syntax for filter");
return FALSE;
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
gtk_css_filter_clear (filter);
_gtk_css_parser_error (parser, "Expected closing ')'");
return FALSE;
}
return TRUE;
}
GtkCssValue *
gtk_css_filter_value_parse (GtkCssParser *parser)
{
GtkCssValue *value;
GArray *array;
guint i;
if (_gtk_css_parser_try (parser, "none", TRUE))
return gtk_css_filter_value_new_none ();
array = g_array_new (FALSE, FALSE, sizeof (GtkCssFilter));
do {
GtkCssFilter filter;
if (!gtk_css_filter_parse (&filter, parser))
{
for (i = 0; i < array->len; i++)
{
gtk_css_filter_clear (&g_array_index (array, GtkCssFilter, i));
}
g_array_free (array, TRUE);
return NULL;
}
g_array_append_val (array, filter);
} while (!_gtk_css_parser_begins_with (parser, ';'));
value = gtk_css_filter_value_alloc (array->len);
memcpy (value->filters, array->data, sizeof (GtkCssFilter) * array->len);
g_array_free (array, TRUE);
return value;
}
gboolean
gtk_css_filter_value_get_color_matrix (const GtkCssValue *filter,
graphene_matrix_t *matrix,
graphene_vec4_t *offset)
{
g_return_val_if_fail (filter->class == &GTK_CSS_VALUE_FILTER, FALSE);
g_return_val_if_fail (matrix != NULL, FALSE);
gtk_css_filter_value_compute_matrix (filter, matrix, offset);
return TRUE;
}
void
gtk_css_filter_value_push_snapshot (const GtkCssValue *filter,
GtkSnapshot *snapshot)
{
graphene_matrix_t matrix;
graphene_vec4_t offset;
if (gtk_css_filter_value_is_none (filter))
return;
gtk_css_filter_value_get_color_matrix (filter, &matrix, &offset);
gtk_snapshot_push_color_matrix (snapshot,
&matrix,
&offset,
"IconFilter<%u>", filter->n_filters);
}
void
gtk_css_filter_value_pop_snapshot (const GtkCssValue *filter,
GtkSnapshot *snapshot)
{
if (gtk_css_filter_value_is_none (filter))
return;
gtk_snapshot_pop_and_append (snapshot);
}

42
gtk/gtkcssfiltervalueprivate.h Normal file
View File

@ -0,0 +1,42 @@
/*
* Copyright © 2017 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_CSS_FILTER_VALUE_PRIVATE_H__
#define __GTK_CSS_FILTER_VALUE_PRIVATE_H__
#include "gtkcssparserprivate.h"
#include "gtkcssvalueprivate.h"
G_BEGIN_DECLS
GtkCssValue * gtk_css_filter_value_new_none (void);
GtkCssValue * gtk_css_filter_value_parse (GtkCssParser *parser);
gboolean gtk_css_filter_value_get_color_matrix (const GtkCssValue *filter,
graphene_matrix_t *matrix,
graphene_vec4_t *offset);
void gtk_css_filter_value_push_snapshot (const GtkCssValue *filter,
GtkSnapshot *snapshot);
void gtk_css_filter_value_pop_snapshot (const GtkCssValue *filter,
GtkSnapshot *snapshot);
G_END_DECLS
#endif /* __GTK_CSS_FILTER_VALUE_PRIVATE_H__ */

16
gtk/gtkcssstylepropertyimpl.c
View File

@ -44,6 +44,7 @@
#include "gtkcsscolorvalueprivate.h"
#include "gtkcsscornervalueprivate.h"
#include "gtkcsseasevalueprivate.h"
#include "gtkcssfiltervalueprivate.h"
#include "gtkcssiconthemevalueprivate.h"
#include "gtkcssimageprivate.h"
#include "gtkcssimagebuiltinprivate.h"
@ -562,6 +563,13 @@ transform_value_parse (GtkCssStyleProperty *property,
return _gtk_css_transform_value_parse (parser);
}
static GtkCssValue *
filter_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser)
{
return gtk_css_filter_value_parse (parser);
}
static GtkCssValue *
border_spacing_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser)
@ -1454,6 +1462,14 @@ _gtk_css_style_property_init_properties (void)
transform_value_parse,
NULL,
_gtk_css_transform_value_new_none ());
gtk_css_style_property_register ("-gtk-icon-filter",
GTK_CSS_PROPERTY_ICON_FILTER,
G_TYPE_NONE,
GTK_STYLE_PROPERTY_ANIMATED,
GTK_CSS_AFFECTS_ICON | GTK_CSS_AFFECTS_SYMBOLIC_ICON | GTK_CSS_AFFECTS_CLIP,
filter_value_parse,
NULL,
gtk_css_filter_value_new_none ());
gtk_css_style_property_register ("border-spacing",
GTK_CSS_PROPERTY_BORDER_SPACING,

1
gtk/gtkcsstypesprivate.h
View File

@ -208,6 +208,7 @@ enum { /*< skip >*/
GTK_CSS_PROPERTY_ICON_SHADOW,
GTK_CSS_PROPERTY_ICON_STYLE,
GTK_CSS_PROPERTY_ICON_TRANSFORM,
GTK_CSS_PROPERTY_ICON_FILTER,
GTK_CSS_PROPERTY_BORDER_SPACING,
GTK_CSS_PROPERTY_MIN_WIDTH,
GTK_CSS_PROPERTY_MIN_HEIGHT,

23
gtk/gtkrendericon.c
View File

@ -21,6 +21,7 @@
#include "gtkrendericonprivate.h"
#include "gtkcssfiltervalueprivate.h"
#include "gtkcssimagebuiltinprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssshadowsvalueprivate.h"
@ -95,7 +96,7 @@ gtk_css_style_snapshot_icon (GtkCssStyle *style,
double height,
GtkCssImageBuiltinType builtin_type)
{
const GtkCssValue *shadows_value, *transform;
const GtkCssValue *shadows_value, *transform_value, *filter_value;
graphene_matrix_t transform_matrix;
GtkCssImage *image;
GskShadow *shadows;
@ -109,11 +110,14 @@ gtk_css_style_snapshot_icon (GtkCssStyle *style,
return;
shadows_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
transform = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
transform_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
filter_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_FILTER);
if (!gtk_css_transform_value_get_matrix (transform, &transform_matrix))
if (!gtk_css_transform_value_get_matrix (transform_value, &transform_matrix))
return;
gtk_css_filter_value_push_snapshot (filter_value, snapshot);
shadows = gtk_css_shadows_value_get_shadows (shadows_value, &n_shadows);
if (shadows)
gtk_snapshot_push_shadow (snapshot, shadows, n_shadows, "IconShadow<%zu>", n_shadows);
@ -144,6 +148,8 @@ gtk_css_style_snapshot_icon (GtkCssStyle *style,
gtk_snapshot_pop_and_append (snapshot);
g_free (shadows);
}
gtk_css_filter_value_pop_snapshot (filter_value, snapshot);
}
static gboolean
@ -266,7 +272,7 @@ gtk_css_style_snapshot_icon_texture (GtkCssStyle *style,
GskTexture *texture,
double texture_scale)
{
const GtkCssValue *shadows_value, *transform;
const GtkCssValue *shadows_value, *transform_value, *filter_value;
graphene_matrix_t transform_matrix;
graphene_rect_t bounds;
double width, height;
@ -279,13 +285,16 @@ gtk_css_style_snapshot_icon_texture (GtkCssStyle *style,
g_return_if_fail (texture_scale > 0);
shadows_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
transform = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
transform_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM);
filter_value = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_FILTER);
width = gsk_texture_get_width (texture) / texture_scale;
height = gsk_texture_get_height (texture) / texture_scale;
if (!gtk_css_transform_value_get_matrix (transform, &transform_matrix))
if (!gtk_css_transform_value_get_matrix (transform_value, &transform_matrix))
return;
gtk_css_filter_value_push_snapshot (filter_value, snapshot);
shadows = gtk_css_shadows_value_get_shadows (shadows_value, &n_shadows);
if (shadows)
gtk_snapshot_push_shadow (snapshot, shadows, n_shadows, "IconShadow<%zu>", n_shadows);
@ -321,4 +330,6 @@ gtk_css_style_snapshot_icon_texture (GtkCssStyle *style,
gtk_snapshot_pop_and_append (snapshot);
g_free (shadows);
}
gtk_css_filter_value_pop_snapshot (filter_value, snapshot);
}