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-rw-r--r--gtk/Makefile.am2
-rw-r--r--gtk/gtkcssbgsizevalue.c258
-rw-r--r--gtk/gtkcssbgsizevalueprivate.h45
-rw-r--r--gtk/gtkcssstylepropertyimpl.c82
-rw-r--r--gtk/gtkcsstypes.c12
-rw-r--r--gtk/gtkcsstypesprivate.h12
-rw-r--r--gtk/gtkcssvalue.c18
-rw-r--r--gtk/gtkcssvalueprivate.h2
-rw-r--r--gtk/gtkthemingbackground.c56
9 files changed, 317 insertions, 170 deletions
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index a1c1147409..01ea4cac1c 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -424,6 +424,7 @@ gtk_private_h_sources = \
gtkcolorchooserprivate.h \
gtkcontainerprivate.h \
gtkcssarrayvalueprivate.h \
+ gtkcssbgsizevalueprivate.h \
gtkcsscomputedvaluesprivate.h \
gtkcsscornervalueprivate.h \
gtkcsscustompropertyprivate.h \
@@ -636,6 +637,7 @@ gtk_base_c_sources = \
gtkcomboboxtext.c \
gtkcontainer.c \
gtkcssarrayvalue.c \
+ gtkcssbgsizevalue.c \
gtkcsscomputedvalues.c \
gtkcsscornervalue.c \
gtkcsscustomproperty.c \
diff --git a/gtk/gtkcssbgsizevalue.c b/gtk/gtkcssbgsizevalue.c
new file mode 100644
index 0000000000..24e0fae039
--- /dev/null
+++ b/gtk/gtkcssbgsizevalue.c
@@ -0,0 +1,258 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2011 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 "gtkcssnumbervalueprivate.h"
+
+struct _GtkCssValue {
+ GTK_CSS_VALUE_BASE
+ guint cover :1;
+ guint contain :1;
+ GtkCssValue *x;
+ GtkCssValue *y;
+};
+
+static void
+gtk_css_value_bg_size_free (GtkCssValue *value)
+{
+ if (value->x)
+ _gtk_css_value_unref (value->x);
+ if (value->y)
+ _gtk_css_value_unref (value->y);
+
+ g_slice_free (GtkCssValue, value);
+}
+
+static gboolean
+gtk_css_value_bg_size_equal (const GtkCssValue *value1,
+ const GtkCssValue *value2)
+{
+ return value1->cover == value2->cover &&
+ value2->contain == value2->contain &&
+ (value1->x == value2->x ||
+ (value1->x != NULL && value2->x != NULL &&
+ _gtk_css_value_equal (value1->x, value2->x))) &&
+ (value1->y == value2->y ||
+ (value1->y != NULL && value2->y != NULL &&
+ _gtk_css_value_equal (value1->y, value2->y)));
+}
+
+static GtkCssValue *
+gtk_css_value_bg_size_transition (GtkCssValue *start,
+ GtkCssValue *end,
+ double progress)
+{
+ GtkCssValue *x, *y;
+
+ if (start->cover)
+ return end->cover ? _gtk_css_value_ref (end) : NULL;
+ if (start->contain)
+ return end->contain ? _gtk_css_value_ref (end) : NULL;
+
+ if ((start->x != NULL) ^ (end->x != NULL) ||
+ (start->y != NULL) ^ (end->y != NULL))
+ return NULL;
+
+ if (start->x)
+ {
+ x = _gtk_css_value_transition (start->x, end->x, progress);
+ if (x == NULL)
+ return NULL;
+ }
+ else
+ x = NULL;
+
+ if (start->y)
+ {
+ y = _gtk_css_value_transition (start->y, end->y, progress);
+ if (y == NULL)
+ {
+ _gtk_css_value_unref (x);
+ return NULL;
+ }
+ }
+ else
+ y = NULL;
+
+ return _gtk_css_bg_size_value_new (x, y);
+}
+
+static void
+gtk_css_value_bg_size_print (const GtkCssValue *value,
+ GString *string)
+{
+ if (value->cover)
+ g_string_append (string, "cover");
+ else if (value->contain)
+ g_string_append (string, "contain");
+ else
+ {
+ if (value->x == NULL)
+ g_string_append (string, "auto");
+ else
+ _gtk_css_value_print (value->x, string);
+
+ if (value->y)
+ {
+ g_string_append_c (string, ' ');
+ _gtk_css_value_print (value->y, string);
+ }
+ }
+}
+
+static const GtkCssValueClass GTK_CSS_VALUE_BG_SIZE = {
+ gtk_css_value_bg_size_free,
+ gtk_css_value_bg_size_equal,
+ gtk_css_value_bg_size_transition,
+ gtk_css_value_bg_size_print
+};
+
+static GtkCssValue auto_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, FALSE, FALSE, NULL, NULL };
+static GtkCssValue cover_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, TRUE, FALSE, NULL, NULL };
+static GtkCssValue contain_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, FALSE, TRUE, NULL, NULL };
+
+GtkCssValue *
+_gtk_css_bg_size_value_new (GtkCssValue *x,
+ GtkCssValue *y)
+{
+ GtkCssValue *result;
+
+ if (x == NULL && y == NULL)
+ return _gtk_css_value_ref (&auto_singleton);
+
+ result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_BG_SIZE);
+ result->x = x;
+ result->y = y;
+
+ return result;
+}
+
+GtkCssValue *
+_gtk_css_bg_size_value_parse (GtkCssParser *parser)
+{
+ GtkCssValue *x, *y;
+
+ if (_gtk_css_parser_try (parser, "cover", TRUE))
+ return _gtk_css_value_ref (&cover_singleton);
+ else if (_gtk_css_parser_try (parser, "contain", TRUE))
+ return _gtk_css_value_ref (&contain_singleton);
+
+ if (_gtk_css_parser_try (parser, "auto", TRUE))
+ x = NULL;
+ else
+ {
+ x = _gtk_css_number_value_parse (parser,
+ GTK_CSS_POSITIVE_ONLY
+ | GTK_CSS_PARSE_PERCENT
+ | GTK_CSS_PARSE_LENGTH);
+ if (x == NULL)
+ return NULL;
+ }
+
+ if (_gtk_css_parser_try (parser, "auto", TRUE))
+ y = NULL;
+ else if (!_gtk_css_parser_has_number (parser))
+ y = NULL;
+ else
+ {
+ y = _gtk_css_number_value_parse (parser,
+ GTK_CSS_POSITIVE_ONLY
+ | GTK_CSS_PARSE_PERCENT
+ | GTK_CSS_PARSE_LENGTH);
+ if (y == NULL)
+ {
+ _gtk_css_value_unref (x);
+ return NULL;
+ }
+ }
+
+ return _gtk_css_bg_size_value_new (x, y);
+}
+
+static void
+gtk_css_bg_size_compute_size_for_cover_contain (gboolean cover,
+ GtkCssImage *image,
+ double width,
+ double height,
+ double *concrete_width,
+ double *concrete_height)
+{
+ double aspect, image_aspect;
+
+ image_aspect = _gtk_css_image_get_aspect_ratio (image);
+ if (image_aspect == 0.0)
+ {
+ *concrete_width = width;
+ *concrete_height = height;
+ return;
+ }
+
+ aspect = width / height;
+
+ if ((aspect >= image_aspect && cover) ||
+ (aspect < image_aspect && !cover))
+ {
+ *concrete_width = width;
+ *concrete_height = width / image_aspect;
+ }
+ else
+ {
+ *concrete_height = height;
+ *concrete_width = height * image_aspect;
+ }
+}
+
+void
+_gtk_css_bg_size_value_compute_size (const GtkCssValue *value,
+ GtkCssImage *image,
+ double area_width,
+ double area_height,
+ double *out_width,
+ double *out_height)
+{
+ g_return_if_fail (value->class == &GTK_CSS_VALUE_BG_SIZE);
+
+ if (value->contain || value->cover)
+ gtk_css_bg_size_compute_size_for_cover_contain (value->cover,
+ image,
+ area_width, area_height,
+ out_width, out_height);
+ else
+ _gtk_css_image_get_concrete_size (image,
+ /* note: 0 does the right thing here for 'auto' */
+ value->x ? _gtk_css_number_value_get (value->x, area_width) : 0,
+ value->y ? _gtk_css_number_value_get (value->y, area_height) : 0,
+ area_width, area_height,
+ out_width, out_height);
+}
+
+GtkCssValue *
+_gtk_css_bg_size_value_compute (GtkCssValue *value,
+ GtkStyleContext *context)
+{
+ g_return_val_if_fail (value->class == &GTK_CSS_VALUE_BG_SIZE, NULL);
+
+ if (value->x == NULL && value->y == NULL)
+ return _gtk_css_value_ref (value);
+
+ return _gtk_css_bg_size_value_new (value->x ? _gtk_css_number_value_compute (value->x, context) : NULL,
+ value->y ? _gtk_css_number_value_compute (value->y, context) : NULL);
+}
+
diff --git a/gtk/gtkcssbgsizevalueprivate.h b/gtk/gtkcssbgsizevalueprivate.h
new file mode 100644
index 0000000000..cae8d13285
--- /dev/null
+++ b/gtk/gtkcssbgsizevalueprivate.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright © 2012 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: Alexander Larsson <alexl@gnome.org>
+ */
+
+#ifndef __GTK_CSS_BG_SIZE_VALUE_PRIVATE_H__
+#define __GTK_CSS_BG_SIZE_VALUE_PRIVATE_H__
+
+#include "gtkcssparserprivate.h"
+#include "gtkcssimageprivate.h"
+#include "gtkcssvalueprivate.h"
+
+G_BEGIN_DECLS
+
+GtkCssValue * _gtk_css_bg_size_value_new (GtkCssValue *x,
+ GtkCssValue *y);
+GtkCssValue * _gtk_css_bg_size_value_parse (GtkCssParser *parser);
+
+void _gtk_css_bg_size_value_compute_size (const GtkCssValue *bg_size,
+ GtkCssImage *image,
+ double area_width,
+ double area_height,
+ double *out_width,
+ double *out_height);
+GtkCssValue * _gtk_css_bg_size_value_compute (GtkCssValue *bg_size,
+ GtkStyleContext *context);
+
+
+G_END_DECLS
+
+#endif /* __GTK_CSS_BG_SIZE_VALUE_PRIVATE_H__ */
diff --git a/gtk/gtkcssstylepropertyimpl.c b/gtk/gtkcssstylepropertyimpl.c
index 5a0efb345b..e5b3461c8d 100644
--- a/gtk/gtkcssstylepropertyimpl.c
+++ b/gtk/gtkcssstylepropertyimpl.c
@@ -41,6 +41,7 @@
#include "gtkanimationdescription.h"
#include "gtkbindings.h"
#include "gtkcssarrayvalueprivate.h"
+#include "gtkcssbgsizevalueprivate.h"
#include "gtkcsscornervalueprivate.h"
#include "gtkcsseasevalueprivate.h"
#include "gtkcssenginevalueprivate.h"
@@ -898,65 +899,7 @@ background_size_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
- GtkCssBackgroundSize size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE};
-
- if (_gtk_css_parser_try (parser, "cover", TRUE))
- size.cover = TRUE;
- else if (_gtk_css_parser_try (parser, "contain", TRUE))
- size.contain = TRUE;
- else
- {
- if (_gtk_css_parser_try (parser, "auto", TRUE))
- _gtk_css_number_init (&size.width, 0, GTK_CSS_PX);
- else if (!_gtk_css_parser_read_number (parser,
- &size.width,
- GTK_CSS_POSITIVE_ONLY
- | GTK_CSS_PARSE_PERCENT
- | GTK_CSS_PARSE_LENGTH))
- return NULL;
-
- if (_gtk_css_parser_try (parser, "auto", TRUE))
- _gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
- else if (_gtk_css_parser_has_number (parser))
- {
- if (!_gtk_css_parser_read_number (parser,
- &size.height,
- GTK_CSS_POSITIVE_ONLY
- | GTK_CSS_PARSE_PERCENT
- | GTK_CSS_PARSE_LENGTH))
- return NULL;
- }
- else
- _gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
- }
-
- return _gtk_css_value_new_from_background_size (&size);
-}
-
-static void
-background_size_print (GtkCssStyleProperty *property,
- const GtkCssValue *value,
- GString *string)
-{
- const GtkCssBackgroundSize *size = _gtk_css_value_get_background_size (value);
-
- if (size->cover)
- g_string_append (string, "cover");
- else if (size->contain)
- g_string_append (string, "contain");
- else
- {
- if (size->width.value == 0)
- g_string_append (string, "auto");
- else
- _gtk_css_number_print (&size->width, string);
-
- if (size->height.value != 0)
- {
- g_string_append (string, " ");
- _gtk_css_number_print (&size->height, string);
- }
- }
+ return _gtk_css_bg_size_value_parse (parser);
}
static GtkCssValue *
@@ -964,21 +907,7 @@ background_size_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
- const GtkCssBackgroundSize *ssize = _gtk_css_value_get_background_size (specified);
- GtkCssBackgroundSize csize;
- gboolean changed;
-
- csize.cover = ssize->cover;
- csize.contain = ssize->contain;
- changed = _gtk_css_number_compute (&csize.width,
- &ssize->width,
- context);
- changed |= _gtk_css_number_compute (&csize.height,
- &ssize->height,
- context);
- if (changed)
- return _gtk_css_value_new_from_background_size (&csize);
- return _gtk_css_value_ref (specified);
+ return _gtk_css_bg_size_value_compute (specified, context);
}
static GtkCssValue *
@@ -1013,7 +942,6 @@ gtk_symbolic_color_new_rgba (double red,
void
_gtk_css_style_property_init_properties (void)
{
- GtkCssBackgroundSize default_background_size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE };
GtkBorder border_of_ones = { 1, 1, 1, 1 };
/* Initialize "color" and "font-size" first,
@@ -1431,12 +1359,12 @@ _gtk_css_style_property_init_properties (void)
G_TYPE_NONE,
0,
background_size_parse,
- background_size_print,
+ NULL,
background_size_compute,
NULL,
NULL,
NULL,
- _gtk_css_value_new_from_background_size (&default_background_size));
+ _gtk_css_bg_size_value_new (NULL, NULL));
gtk_css_style_property_register ("background-position",
GTK_CSS_PROPERTY_BACKGROUND_POSITION,
G_TYPE_NONE,
diff --git a/gtk/gtkcsstypes.c b/gtk/gtkcsstypes.c
index af1a699e1a..3962e2fe56 100644
--- a/gtk/gtkcsstypes.c
+++ b/gtk/gtkcsstypes.c
@@ -22,18 +22,6 @@
#include "gtkcssnumbervalueprivate.h"
#include "gtkstylecontextprivate.h"
-#define DEFINE_BOXED_TYPE_WITH_COPY_FUNC(TypeName, type_name) \
-\
-static TypeName * \
-type_name ## _copy (const TypeName *foo) \
-{ \
- return g_memdup (foo, sizeof (TypeName)); \
-} \
-\
-G_DEFINE_BOXED_TYPE (TypeName, type_name, type_name ## _copy, g_free)
-
-DEFINE_BOXED_TYPE_WITH_COPY_FUNC (GtkCssBackgroundSize, _gtk_css_background_size)
-
typedef struct _GtkCssChangeTranslation GtkCssChangeTranslation;
struct _GtkCssChangeTranslation {
GtkCssChange from;
diff --git a/gtk/gtkcsstypesprivate.h b/gtk/gtkcsstypesprivate.h
index b451ab2e06..730b2fa8bd 100644
--- a/gtk/gtkcsstypesprivate.h
+++ b/gtk/gtkcsstypesprivate.h
@@ -160,24 +160,12 @@ typedef enum /*< skip >*/ {
} GtkCssUnit;
typedef struct _GtkCssNumber GtkCssNumber;
-typedef struct _GtkCssBackgroundSize GtkCssBackgroundSize;
struct _GtkCssNumber {
gdouble value;
GtkCssUnit unit;
};
-struct _GtkCssBackgroundSize {
- GtkCssNumber width; /* 0 means auto here */
- GtkCssNumber height; /* 0 means auto here */
- guint cover :1;
- guint contain :1;
-};
-
-#define GTK_TYPE_CSS_BACKGROUND_SIZE _gtk_css_background_size_get_type ()
-
-GType _gtk_css_background_size_get_type (void);
-
GtkCssChange _gtk_css_change_for_sibling (GtkCssChange match);
GtkCssChange _gtk_css_change_for_child (GtkCssChange match);
diff --git a/gtk/gtkcssvalue.c b/gtk/gtkcssvalue.c
index 52a0386988..80ccd54585 100644
--- a/gtk/gtkcssvalue.c
+++ b/gtk/gtkcssvalue.c
@@ -279,17 +279,6 @@ _gtk_css_value_new_from_color (const GdkColor *v)
}
GtkCssValue *
-_gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v)
-{
- GtkCssValue *value;
-
- value = gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_SIZE);
- value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_SIZE, v);
-
- return value;
-}
-
-GtkCssValue *
_gtk_css_value_new_from_border_style (GtkBorderStyle style)
{
GtkCssValue *value;
@@ -514,13 +503,6 @@ _gtk_css_value_get_border_style (const GtkCssValue *value)
return value->u.gint;
}
-const GtkCssBackgroundSize *
-_gtk_css_value_get_background_size (const GtkCssValue *value)
-{
- g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_SIZE), NULL);
- return value->u.ptr;
-}
-
GtkGradient *
_gtk_css_value_get_gradient (const GtkCssValue *value)
{
diff --git a/gtk/gtkcssvalueprivate.h b/gtk/gtkcssvalueprivate.h
index 7cd450a27e..0dc1f9af66 100644
--- a/gtk/gtkcssvalueprivate.h
+++ b/gtk/gtkcssvalueprivate.h
@@ -88,7 +88,6 @@ GtkCssValue *_gtk_css_value_new_from_color (const GdkColor
GtkCssValue *_gtk_css_value_new_take_symbolic_color (GtkSymbolicColor *v);
GtkCssValue *_gtk_css_value_new_take_pattern (cairo_pattern_t *v);
GtkCssValue *_gtk_css_value_new_take_binding_sets (GPtrArray *array);
-GtkCssValue *_gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v);
void _gtk_css_value_init_gvalue (const GtkCssValue *value,
GValue *g_value);
@@ -99,7 +98,6 @@ gpointer _gtk_css_value_get_object (const
gpointer _gtk_css_value_get_boxed (const GtkCssValue *value);
const char ** _gtk_css_value_get_strv (const GtkCssValue *value);
GtkSymbolicColor *_gtk_css_value_get_symbolic_color (const GtkCssValue *value);
-const GtkCssBackgroundSize *_gtk_css_value_get_background_size (const GtkCssValue *value);
GtkGradient *_gtk_css_value_get_gradient (const GtkCssValue *value);
G_END_DECLS
diff --git a/gtk/gtkthemingbackground.c b/gtk/gtkthemingbackground.c
index 4cb43aaa45..245164c3ff 100644
--- a/gtk/gtkthemingbackground.c
+++ b/gtk/gtkthemingbackground.c
@@ -24,6 +24,7 @@
#include "gtkthemingbackgroundprivate.h"
#include "gtkcssarrayvalueprivate.h"
+#include "gtkcssbgsizevalueprivate.h"
#include "gtkcssenumvalueprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssshadowsvalueprivate.h"
@@ -113,39 +114,6 @@ _gtk_theming_background_apply_clip (GtkThemingBackground *bg)
}
static void
-_gtk_theming_background_get_cover_contain (GtkCssImage *image,
- gboolean cover,
- double width,
- double height,
- double *concrete_width,
- double *concrete_height)
-{
- double aspect, image_aspect;
-
- image_aspect = _gtk_css_image_get_aspect_ratio (image);
- if (image_aspect == 0.0)
- {
- *concrete_width = width;
- *concrete_height = height;
- return;
- }
-
- aspect = width / height;
-
- if ((aspect >= image_aspect && cover) ||
- (aspect < image_aspect && !cover))
- {
- *concrete_width = width;
- *concrete_height = width / image_aspect;
- }
- else
- {
- *concrete_height = height;
- *concrete_width = height * image_aspect;
- }
-}
-
-static void
_gtk_theming_background_paint (GtkThemingBackground *bg,
cairo_t *cr)
{
@@ -161,13 +129,11 @@ _gtk_theming_background_paint (GtkThemingBackground *bg,
&& bg->image_rect.width > 0
&& bg->image_rect.height > 0)
{
- const GtkCssBackgroundSize *size;
const GtkCssValue *pos, *repeat;
double image_width, image_height;
double width, height;
GtkCssRepeatStyle hrepeat, vrepeat;
- size = _gtk_css_value_get_background_size (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_SIZE));
pos = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_POSITION);
repeat = _gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_REPEAT);
hrepeat = _gtk_css_background_repeat_value_get_x (repeat);
@@ -175,20 +141,12 @@ _gtk_theming_background_paint (GtkThemingBackground *bg,
width = bg->image_rect.width;
height = bg->image_rect.height;
- if (size->contain || size->cover)
- _gtk_theming_background_get_cover_contain (bg->image,
- size->cover,
- width,
- height,
- &image_width,
- &image_height);
- else
- _gtk_css_image_get_concrete_size (bg->image,
- /* note: 0 does the right thing here for 'auto' */
- _gtk_css_number_get (&size->width, width),
- _gtk_css_number_get (&size->height, height),
- width, height,
- &image_width, &image_height);
+ _gtk_css_bg_size_value_compute_size (_gtk_style_context_peek_property (bg->context, GTK_CSS_PROPERTY_BACKGROUND_SIZE),
+ bg->image,
+ width,
+ height,
+ &image_width,
+ &image_height);
/* optimization */
if (image_width == width)
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