0e2f35ed88
When values are computed, they might depend on various other values and we need to track this so we can update the values when those other values change. This is the first step in making that happen. This patch does not do any dependency tracking at all, instead it uses GTK_CSS_DEPENDS_ON_EVERYTHING as a sort of FIXME.
384 lines
13 KiB
C
384 lines
13 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 2011 Red Hat, Inc.
|
|
*
|
|
* Author: Cosimo Cecchi <cosimoc@gnome.org>
|
|
*
|
|
* 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 "gtkcssshadowvalueprivate.h"
|
|
|
|
#include "gtkcssnumbervalueprivate.h"
|
|
#include "gtkcssrgbavalueprivate.h"
|
|
#include "gtkstylecontextprivate.h"
|
|
#include "gtksymboliccolorprivate.h"
|
|
#include "gtkthemingengineprivate.h"
|
|
#include "gtkpango.h"
|
|
|
|
struct _GtkCssValue {
|
|
GTK_CSS_VALUE_BASE
|
|
guint inset :1;
|
|
|
|
GtkCssValue *hoffset;
|
|
GtkCssValue *voffset;
|
|
GtkCssValue *radius;
|
|
GtkCssValue *spread;
|
|
|
|
GtkCssValue *color;
|
|
};
|
|
|
|
static GtkCssValue * gtk_css_shadow_value_new (GtkCssValue *hoffset,
|
|
GtkCssValue *voffset,
|
|
GtkCssValue *radius,
|
|
GtkCssValue *spread,
|
|
gboolean inset,
|
|
GtkCssValue *color);
|
|
|
|
static void
|
|
gtk_css_value_shadow_free (GtkCssValue *shadow)
|
|
{
|
|
_gtk_css_value_unref (shadow->hoffset);
|
|
_gtk_css_value_unref (shadow->voffset);
|
|
_gtk_css_value_unref (shadow->radius);
|
|
_gtk_css_value_unref (shadow->spread);
|
|
_gtk_css_value_unref (shadow->color);
|
|
|
|
g_slice_free (GtkCssValue, shadow);
|
|
}
|
|
|
|
static GtkCssValue *
|
|
gtk_css_value_shadow_compute (GtkCssValue *shadow,
|
|
guint property_id,
|
|
GtkStyleContext *context,
|
|
GtkCssDependencies *dependencies)
|
|
{
|
|
*dependencies = GTK_CSS_DEPENDS_ON_EVERYTHING;
|
|
|
|
return gtk_css_shadow_value_new (_gtk_css_value_compute (shadow->hoffset, property_id, context, NULL),
|
|
_gtk_css_value_compute (shadow->voffset, property_id, context, NULL),
|
|
_gtk_css_value_compute (shadow->radius, property_id, context, NULL),
|
|
_gtk_css_value_compute (shadow->spread, property_id, context, NULL),
|
|
shadow->inset,
|
|
_gtk_css_value_compute (shadow->color, property_id, context, NULL));
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_value_shadow_equal (const GtkCssValue *shadow1,
|
|
const GtkCssValue *shadow2)
|
|
{
|
|
return shadow1->inset == shadow2->inset
|
|
&& _gtk_css_value_equal (shadow1->hoffset, shadow2->hoffset)
|
|
&& _gtk_css_value_equal (shadow1->voffset, shadow2->voffset)
|
|
&& _gtk_css_value_equal (shadow1->radius, shadow2->radius)
|
|
&& _gtk_css_value_equal (shadow1->spread, shadow2->spread)
|
|
&& _gtk_css_value_equal (shadow1->color, shadow2->color);
|
|
}
|
|
|
|
static GtkCssValue *
|
|
gtk_css_value_shadow_transition (GtkCssValue *start,
|
|
GtkCssValue *end,
|
|
double progress)
|
|
{
|
|
if (start->inset != end->inset)
|
|
return NULL;
|
|
|
|
return gtk_css_shadow_value_new (_gtk_css_value_transition (start->hoffset, end->hoffset, progress),
|
|
_gtk_css_value_transition (start->voffset, end->voffset, progress),
|
|
_gtk_css_value_transition (start->radius, end->radius, progress),
|
|
_gtk_css_value_transition (start->spread, end->spread, progress),
|
|
start->inset,
|
|
_gtk_css_value_transition (start->color, end->color, progress));
|
|
}
|
|
|
|
static void
|
|
gtk_css_value_shadow_print (const GtkCssValue *shadow,
|
|
GString *string)
|
|
{
|
|
_gtk_css_value_print (shadow->hoffset, string);
|
|
g_string_append_c (string, ' ');
|
|
_gtk_css_value_print (shadow->voffset, string);
|
|
g_string_append_c (string, ' ');
|
|
if (_gtk_css_number_value_get (shadow->radius, 100) != 0 ||
|
|
_gtk_css_number_value_get (shadow->spread, 100) != 0)
|
|
{
|
|
_gtk_css_value_print (shadow->radius, string);
|
|
g_string_append_c (string, ' ');
|
|
}
|
|
|
|
if (_gtk_css_number_value_get (shadow->spread, 100) != 0)
|
|
{
|
|
_gtk_css_value_print (shadow->spread, string);
|
|
g_string_append_c (string, ' ');
|
|
}
|
|
|
|
_gtk_css_value_print (shadow->color, string);
|
|
|
|
if (shadow->inset)
|
|
g_string_append (string, " inset");
|
|
|
|
}
|
|
|
|
static const GtkCssValueClass GTK_CSS_VALUE_SHADOW = {
|
|
gtk_css_value_shadow_free,
|
|
gtk_css_value_shadow_compute,
|
|
gtk_css_value_shadow_equal,
|
|
gtk_css_value_shadow_transition,
|
|
gtk_css_value_shadow_print
|
|
};
|
|
|
|
static GtkCssValue *
|
|
gtk_css_shadow_value_new (GtkCssValue *hoffset,
|
|
GtkCssValue *voffset,
|
|
GtkCssValue *radius,
|
|
GtkCssValue *spread,
|
|
gboolean inset,
|
|
GtkCssValue *color)
|
|
{
|
|
GtkCssValue *retval;
|
|
|
|
retval = _gtk_css_value_new (GtkCssValue, >K_CSS_VALUE_SHADOW);
|
|
|
|
retval->hoffset = hoffset;
|
|
retval->voffset = voffset;
|
|
retval->radius = radius;
|
|
retval->spread = spread;
|
|
retval->inset = inset;
|
|
retval->color = color;
|
|
|
|
return retval;
|
|
}
|
|
|
|
GtkCssValue *
|
|
_gtk_css_shadow_value_new_for_transition (GtkCssValue *target)
|
|
{
|
|
GdkRGBA transparent = { 0, 0, 0, 0 };
|
|
|
|
g_return_val_if_fail (target->class == >K_CSS_VALUE_SHADOW, NULL);
|
|
|
|
return gtk_css_shadow_value_new (_gtk_css_number_value_new (0, GTK_CSS_PX),
|
|
_gtk_css_number_value_new (0, GTK_CSS_PX),
|
|
_gtk_css_number_value_new (0, GTK_CSS_PX),
|
|
_gtk_css_number_value_new (0, GTK_CSS_PX),
|
|
target->inset,
|
|
_gtk_css_rgba_value_new_from_rgba (&transparent));
|
|
}
|
|
|
|
static gboolean
|
|
value_is_done_parsing (GtkCssParser *parser)
|
|
{
|
|
return _gtk_css_parser_is_eof (parser) ||
|
|
_gtk_css_parser_begins_with (parser, ',') ||
|
|
_gtk_css_parser_begins_with (parser, ';') ||
|
|
_gtk_css_parser_begins_with (parser, '}');
|
|
}
|
|
|
|
GtkCssValue *
|
|
_gtk_css_shadow_value_parse (GtkCssParser *parser)
|
|
{
|
|
enum {
|
|
HOFFSET,
|
|
VOFFSET,
|
|
RADIUS,
|
|
SPREAD,
|
|
COLOR,
|
|
N_VALUES
|
|
};
|
|
GtkCssValue *values[N_VALUES] = { NULL, };
|
|
gboolean inset;
|
|
guint i;
|
|
|
|
inset = _gtk_css_parser_try (parser, "inset", TRUE);
|
|
|
|
do
|
|
{
|
|
if (values[HOFFSET] == NULL &&
|
|
_gtk_css_parser_has_number (parser))
|
|
{
|
|
values[HOFFSET] = _gtk_css_number_value_parse (parser,
|
|
GTK_CSS_PARSE_LENGTH
|
|
| GTK_CSS_NUMBER_AS_PIXELS);
|
|
if (values[HOFFSET] == NULL)
|
|
goto fail;
|
|
|
|
values[VOFFSET] = _gtk_css_number_value_parse (parser,
|
|
GTK_CSS_PARSE_LENGTH
|
|
| GTK_CSS_NUMBER_AS_PIXELS);
|
|
if (values[VOFFSET] == NULL)
|
|
goto fail;
|
|
|
|
if (_gtk_css_parser_has_number (parser))
|
|
{
|
|
values[RADIUS] = _gtk_css_number_value_parse (parser,
|
|
GTK_CSS_PARSE_LENGTH
|
|
| GTK_CSS_POSITIVE_ONLY
|
|
| GTK_CSS_NUMBER_AS_PIXELS);
|
|
if (values[RADIUS] == NULL)
|
|
goto fail;
|
|
}
|
|
else
|
|
values[RADIUS] = _gtk_css_number_value_new (0.0, GTK_CSS_PX);
|
|
|
|
if (_gtk_css_parser_has_number (parser))
|
|
{
|
|
values[SPREAD] = _gtk_css_number_value_parse (parser,
|
|
GTK_CSS_PARSE_LENGTH
|
|
| GTK_CSS_NUMBER_AS_PIXELS);
|
|
if (values[SPREAD] == NULL)
|
|
goto fail;
|
|
}
|
|
else
|
|
values[SPREAD] = _gtk_css_number_value_new (0.0, GTK_CSS_PX);
|
|
}
|
|
else if (!inset && _gtk_css_parser_try (parser, "inset", TRUE))
|
|
{
|
|
if (values[HOFFSET] == NULL)
|
|
goto fail;
|
|
inset = TRUE;
|
|
break;
|
|
}
|
|
else if (values[COLOR] == NULL)
|
|
{
|
|
values[COLOR] = _gtk_css_symbolic_value_new (parser);
|
|
|
|
if (values[COLOR] == NULL)
|
|
goto fail;
|
|
}
|
|
else
|
|
{
|
|
/* We parsed everything and there's still stuff left?
|
|
* Pretend we didn't notice and let the normal code produce
|
|
* a 'junk at end of value' error */
|
|
goto fail;
|
|
}
|
|
}
|
|
while (values[HOFFSET] == NULL || !value_is_done_parsing (parser));
|
|
|
|
if (values[COLOR] == NULL)
|
|
values[COLOR] = _gtk_css_symbolic_value_new_take_symbolic_color (
|
|
gtk_symbolic_color_ref (
|
|
_gtk_symbolic_color_get_current_color ()));
|
|
|
|
return gtk_css_shadow_value_new (values[HOFFSET], values[VOFFSET],
|
|
values[RADIUS], values[SPREAD],
|
|
inset, values[COLOR]);
|
|
|
|
fail:
|
|
for (i = 0; i < N_VALUES; i++)
|
|
{
|
|
if (values[i])
|
|
_gtk_css_value_unref (values[i]);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
_gtk_css_shadow_value_paint_layout (const GtkCssValue *shadow,
|
|
cairo_t *cr,
|
|
PangoLayout *layout)
|
|
{
|
|
g_return_if_fail (shadow->class == >K_CSS_VALUE_SHADOW);
|
|
|
|
if (!cairo_has_current_point (cr))
|
|
cairo_move_to (cr, 0, 0);
|
|
|
|
cairo_save (cr);
|
|
|
|
cairo_rel_move_to (cr,
|
|
_gtk_css_number_value_get (shadow->hoffset, 0),
|
|
_gtk_css_number_value_get (shadow->voffset, 0));
|
|
gdk_cairo_set_source_rgba (cr, _gtk_css_rgba_value_get_rgba (shadow->color));
|
|
_gtk_pango_fill_layout (cr, layout);
|
|
|
|
cairo_rel_move_to (cr,
|
|
- _gtk_css_number_value_get (shadow->hoffset, 0),
|
|
- _gtk_css_number_value_get (shadow->voffset, 0));
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
void
|
|
_gtk_css_shadow_value_paint_icon (const GtkCssValue *shadow,
|
|
cairo_t *cr)
|
|
{
|
|
cairo_pattern_t *pattern;
|
|
|
|
g_return_if_fail (shadow->class == >K_CSS_VALUE_SHADOW);
|
|
|
|
cairo_save (cr);
|
|
pattern = cairo_pattern_reference (cairo_get_source (cr));
|
|
gdk_cairo_set_source_rgba (cr, _gtk_css_rgba_value_get_rgba (shadow->color));
|
|
|
|
cairo_translate (cr,
|
|
_gtk_css_number_value_get (shadow->hoffset, 0),
|
|
_gtk_css_number_value_get (shadow->voffset, 0));
|
|
cairo_mask (cr, pattern);
|
|
|
|
cairo_restore (cr);
|
|
cairo_pattern_destroy (pattern);
|
|
}
|
|
|
|
void
|
|
_gtk_css_shadow_value_paint_spinner (const GtkCssValue *shadow,
|
|
cairo_t *cr,
|
|
gdouble radius,
|
|
gdouble progress)
|
|
{
|
|
g_return_if_fail (shadow->class == >K_CSS_VALUE_SHADOW);
|
|
|
|
cairo_save (cr);
|
|
|
|
cairo_translate (cr,
|
|
_gtk_css_number_value_get (shadow->hoffset, 0),
|
|
_gtk_css_number_value_get (shadow->voffset, 0));
|
|
_gtk_theming_engine_paint_spinner (cr,
|
|
radius, progress,
|
|
_gtk_css_rgba_value_get_rgba (shadow->color));
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
void
|
|
_gtk_css_shadow_value_paint_box (const GtkCssValue *shadow,
|
|
cairo_t *cr,
|
|
const GtkRoundedBox *padding_box)
|
|
{
|
|
GtkRoundedBox box;
|
|
double spread;
|
|
|
|
g_return_if_fail (shadow->class == >K_CSS_VALUE_SHADOW);
|
|
|
|
cairo_save (cr);
|
|
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
|
|
|
|
_gtk_rounded_box_path (padding_box, cr);
|
|
cairo_clip (cr);
|
|
|
|
box = *padding_box;
|
|
_gtk_rounded_box_move (&box,
|
|
_gtk_css_number_value_get (shadow->hoffset, 0),
|
|
_gtk_css_number_value_get (shadow->voffset, 0));
|
|
spread = _gtk_css_number_value_get (shadow->spread, 0);
|
|
_gtk_rounded_box_shrink (&box, spread, spread, spread, spread);
|
|
|
|
_gtk_rounded_box_path (&box, cr);
|
|
_gtk_rounded_box_clip_path (padding_box, cr);
|
|
|
|
gdk_cairo_set_source_rgba (cr, _gtk_css_rgba_value_get_rgba (shadow->color));
|
|
cairo_fill (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|