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gtk2/gtk/gtkcsswin32sizevalue.c
Benjamin Otte 83fb7a649f css: Merge GtkStyleProviderPrivate into GtkStyleProvider 
This is just lots of renaming.

The interface remains private, so the public API does not change, apart
from removing the definition of the Interface object to avoid
subclassing.
2017-10-31 04:33:54 +01:00

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/* 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 "gtkcsswin32sizevalueprivate.h"
#include "gtkwin32drawprivate.h"
#include "gtkwin32themeprivate.h"
typedef enum {
GTK_WIN32_SIZE,
GTK_WIN32_PART_WIDTH,
GTK_WIN32_PART_HEIGHT,
GTK_WIN32_PART_BORDER_TOP,
GTK_WIN32_PART_BORDER_RIGHT,
GTK_WIN32_PART_BORDER_BOTTOM,
GTK_WIN32_PART_BORDER_LEFT
} GtkWin32SizeType;
static const char *css_value_names[] = {
"-gtk-win32-size(",
"-gtk-win32-part-width(",
"-gtk-win32-part-height(",
"-gtk-win32-part-border-top(",
"-gtk-win32-part-border-right(",
"-gtk-win32-part-border-bottom(",
"-gtk-win32-part-border-left("
};
struct _GtkCssValue {
GTK_CSS_VALUE_BASE
double scale; /* needed for calc() math */
GtkWin32Theme *theme;
GtkWin32SizeType type;
union {
struct {
gint id;
} size;
struct {
gint part;
gint state;
} part;
} val;
};
static GtkCssValue * gtk_css_win32_size_value_new (double scale,
GtkWin32Theme *theme,
GtkWin32SizeType type);
static void
gtk_css_value_win32_size_free (GtkCssValue *value)
{
gtk_win32_theme_unref (value->theme);
g_slice_free (GtkCssValue, value);
}
static int
gtk_css_value_win32_compute_size (const GtkCssValue *value)
{
GtkBorder border;
int size;
switch (value->type)
{
case GTK_WIN32_SIZE:
size = gtk_win32_theme_get_size (value->theme, value->val.size.id);
break;
case GTK_WIN32_PART_WIDTH:
gtk_win32_theme_get_part_size (value->theme, value->val.part.part, value->val.part.state, &size, NULL);
break;
case GTK_WIN32_PART_HEIGHT:
gtk_win32_theme_get_part_size (value->theme, value->val.part.part, value->val.part.state, NULL, &size);
break;
case GTK_WIN32_PART_BORDER_TOP:
gtk_win32_theme_get_part_border (value->theme, value->val.part.part, value->val.part.state, &border);
size = border.top;
break;
case GTK_WIN32_PART_BORDER_RIGHT:
gtk_win32_theme_get_part_border (value->theme, value->val.part.part, value->val.part.state, &border);
size = border.right;
break;
case GTK_WIN32_PART_BORDER_BOTTOM:
gtk_win32_theme_get_part_border (value->theme, value->val.part.part, value->val.part.state, &border);
size = border.bottom;
break;
case GTK_WIN32_PART_BORDER_LEFT:
gtk_win32_theme_get_part_border (value->theme, value->val.part.part, value->val.part.state, &border);
size = border.left;
break;
default:
g_assert_not_reached ();
return 0;
}
return size;
}
static GtkCssValue *
gtk_css_value_win32_size_compute (GtkCssValue *value,
guint property_id,
GtkStyleProvider *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
return _gtk_css_number_value_new (value->scale * gtk_css_value_win32_compute_size (value), GTK_CSS_PX);
}
static gboolean
gtk_css_value_win32_size_equal (const GtkCssValue *value1,
const GtkCssValue *value2)
{
if (value1->type != value2->type ||
!gtk_win32_theme_equal (value1->theme, value2->theme) )
return FALSE;
switch (value1->type)
{
case GTK_WIN32_SIZE:
return value1->val.size.id == value2->val.size.id;
case GTK_WIN32_PART_WIDTH:
case GTK_WIN32_PART_HEIGHT:
return value1->val.part.part == value2->val.part.part
&& value1->val.part.state == value2->val.part.state;
case GTK_WIN32_PART_BORDER_TOP:
case GTK_WIN32_PART_BORDER_RIGHT:
case GTK_WIN32_PART_BORDER_BOTTOM:
case GTK_WIN32_PART_BORDER_LEFT:
default:
g_assert_not_reached ();
return FALSE;
}
}
static void
gtk_css_value_win32_size_print (const GtkCssValue *value,
GString *string)
{
if (value->scale != 1.0)
{
g_string_append_printf (string, "%g * ", value->scale);
}
g_string_append (string, css_value_names[value->type]);
gtk_win32_theme_print (value->theme, string);
switch (value->type)
{
case GTK_WIN32_SIZE:
{
const char *name = gtk_win32_get_sys_metric_name_for_id (value->val.size.id);
if (name)
g_string_append (string, name);
else
g_string_append_printf (string, ", %d", value->val.size.id);
}
break;
case GTK_WIN32_PART_WIDTH:
case GTK_WIN32_PART_HEIGHT:
case GTK_WIN32_PART_BORDER_TOP:
case GTK_WIN32_PART_BORDER_RIGHT:
case GTK_WIN32_PART_BORDER_BOTTOM:
case GTK_WIN32_PART_BORDER_LEFT:
g_string_append_printf (string, ", %d, %d", value->val.part.part, value->val.part.state);
break;
default:
g_assert_not_reached ();
break;
}
g_string_append (string, ")");
}
static double
gtk_css_value_win32_size_get (const GtkCssValue *value,
double one_hundred_percent)
{
return value->scale * gtk_css_value_win32_compute_size (value);
}
static GtkCssDimension
gtk_css_value_win32_size_get_dimension (const GtkCssValue *value)
{
return GTK_CSS_DIMENSION_LENGTH;
}
static gboolean
gtk_css_value_win32_size_has_percent (const GtkCssValue *value)
{
return FALSE;
}
static GtkCssValue *
gtk_css_value_win32_size_multiply (const GtkCssValue *value,
double factor)
{
GtkCssValue *result;
result = gtk_css_win32_size_value_new (value->scale * factor, value->theme, value->type);
result->val = value->val;
return result;
}
static GtkCssValue *
gtk_css_value_win32_size_try_add (const GtkCssValue *value1,
const GtkCssValue *value2)
{
GtkCssValue *result;
if (!gtk_css_value_win32_size_equal (value1, value2))
return NULL;
result = gtk_css_win32_size_value_new (value1->scale + value2->scale, value1->theme, value1->type);
result->val = value1->val;
return result;
}
static gint
gtk_css_value_win32_size_get_calc_term_order (const GtkCssValue *value)
{
return 2000 + 100 * value->type;
}
static const GtkCssNumberValueClass GTK_CSS_VALUE_WIN32_SIZE = {
{
gtk_css_value_win32_size_free,
gtk_css_value_win32_size_compute,
gtk_css_value_win32_size_equal,
gtk_css_number_value_transition,
gtk_css_value_win32_size_print
},
gtk_css_value_win32_size_get,
gtk_css_value_win32_size_get_dimension,
gtk_css_value_win32_size_has_percent,
gtk_css_value_win32_size_multiply,
gtk_css_value_win32_size_try_add,
gtk_css_value_win32_size_get_calc_term_order
};
static GtkCssValue *
gtk_css_win32_size_value_new (double scale,
GtkWin32Theme *theme,
GtkWin32SizeType type)
{
GtkCssValue *result;
result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_WIN32_SIZE.value_class);
result->scale = scale;
result->theme = gtk_win32_theme_ref (theme);
result->type = type;
return result;
}
static GtkCssValue *
gtk_css_win32_size_value_parse_size (GtkCssValue *value,
GtkCssParser *parser)
{
char *name;
name = _gtk_css_parser_try_ident (parser, TRUE);
if (name)
{
value->val.size.id = gtk_win32_get_sys_metric_id_for_name (name);
if (value->val.size.id == -1)
{
_gtk_css_parser_error (parser, "'%s' is not a name for a win32 metric.", name);
_gtk_css_value_unref (value);
g_free (name);
return NULL;
}
g_free (name);
}
else if (!_gtk_css_parser_try_int (parser, &value->val.size.id))
{
_gtk_css_value_unref (value);
_gtk_css_parser_error (parser, "Expected an integer ID");
return NULL;
}
return value;
}
static GtkCssValue *
gtk_css_win32_size_value_parse_part_size (GtkCssValue *value,
GtkCssParser *parser)
{
if (!_gtk_css_parser_try_int (parser, &value->val.part.part))
{
_gtk_css_value_unref (value);
_gtk_css_parser_error (parser, "Expected an integer part ID");
return NULL;
}
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_value_unref (value);
_gtk_css_parser_error (parser, "Expected ','");
return NULL;
}
if (!_gtk_css_parser_try_int (parser, &value->val.part.state))
{
_gtk_css_value_unref (value);
_gtk_css_parser_error (parser, "Expected an integer state ID");
return NULL;
}
return value;
}
GtkCssValue *
gtk_css_win32_size_value_parse (GtkCssParser *parser,
GtkCssNumberParseFlags flags)
{
GtkWin32Theme *theme;
GtkCssValue *result;
guint type;
for (type = 0; type < G_N_ELEMENTS(css_value_names); type++)
{
if (_gtk_css_parser_try (parser, css_value_names[type], TRUE))
break;
}
if (type >= G_N_ELEMENTS(css_value_names))
{
_gtk_css_parser_error (parser, "Not a win32 size value");
return NULL;
}
theme = gtk_win32_theme_parse (parser);
if (theme == NULL)
return NULL;
result = gtk_css_win32_size_value_new (1.0, theme, type);
gtk_win32_theme_unref (theme);
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_value_unref (result);
_gtk_css_parser_error (parser, "Expected ','");
return NULL;
}
switch (result->type)
{
case GTK_WIN32_SIZE:
result = gtk_css_win32_size_value_parse_size (result, parser);
break;
case GTK_WIN32_PART_WIDTH:
case GTK_WIN32_PART_HEIGHT:
case GTK_WIN32_PART_BORDER_TOP:
case GTK_WIN32_PART_BORDER_RIGHT:
case GTK_WIN32_PART_BORDER_BOTTOM:
case GTK_WIN32_PART_BORDER_LEFT:
result = gtk_css_win32_size_value_parse_part_size (result, parser);
break;
default:
g_assert_not_reached ();
_gtk_css_value_unref (result);
result = NULL;
break;
}
if (result == NULL)
return NULL;
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_value_unref (result);
_gtk_css_parser_error (parser, "Expected ')'");
return NULL;
}
return result;
}
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