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win32: Add a CssImage implementation

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This commit is contained in:
Benjamin Otte 2011-12-20 14:44:53 +01:00
parent f7eea0b86e
commit 2a6c168235
4 changed files with 304 additions and 1 deletions
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2
gtk/Makefile.am
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@ -415,6 +415,7 @@ gtk_private_h_sources = \
gtkcssimagegradientprivate.h \
gtkcssimageprivate.h \
gtkcssimageurlprivate.h \
gtkcssimagewin32private.h \
gtkcsslookupprivate.h \
gtkcssparserprivate.h \
gtkcssproviderprivate.h \
@ -595,6 +596,7 @@ gtk_base_c_sources = \
gtkcssimage.c \
gtkcssimagegradient.c \
gtkcssimageurl.c \
gtkcssimagewin32.c \
gtkcsslookup.c \
gtkcssparser.c \
gtkcssprovider.c \

4
gtk/gtkcssimage.c
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@ -25,6 +25,7 @@
/* for the types only */
#include "gtk/gtkcssimagegradientprivate.h"
#include "gtk/gtkcssimageurlprivate.h"
#include "gtk/gtkcssimagewin32private.h"
G_DEFINE_ABSTRACT_TYPE (GtkCssImage, _gtk_css_image, G_TYPE_OBJECT)
@ -168,7 +169,8 @@ _gtk_css_image_new_parse (GtkCssParser *parser,
GType (* type_func) (void);
} image_types[] = {
{ "url", _gtk_css_image_url_get_type },
{ "-gtk-gradient", _gtk_css_image_gradient_get_type }
{ "-gtk-gradient", _gtk_css_image_gradient_get_type },
{ "-gtk-win32-theme-part", _gtk_css_image_win32_get_type }
};
guint i;

234
gtk/gtkcssimagewin32.c Normal file
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@ -0,0 +1,234 @@
/*
* Copyright © 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcssimagewin32private.h"
#include "gtkcssprovider.h"
G_DEFINE_TYPE (GtkCssImageWin32, _gtk_css_image_win32, GTK_TYPE_CSS_IMAGE)
static void
gtk_css_image_win32_draw (GtkCssImage *image,
cairo_t *cr,
double width,
double height)
{
GtkCssImageWin32 *wimage = GTK_CSS_IMAGE_WIN32 (image);
cairo_surface_t *surface;
surface = _gtk_win32_theme_part_create_surface (wimage->theme, wimage->part, wimage->state, wimage->margins,
width, height);
if (wimage->state2 >= 0)
{
cairo_surface_t *surface2;
cairo_t *cr;
surface2 = _gtk_win32_theme_part_create_surface (wimage->theme, wimage->part2, wimage->state2, wimage->margins,
width, height);
cr = cairo_create (surface);
cairo_set_source_surface (cr, surface2, 0, 0);
cairo_paint_with_alpha (cr, wimage->over_alpha);
cairo_destroy (cr);
cairo_surface_destroy (surface2);
}
cairo_set_source_surface (cr, surface, 0, 0);
cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_surface_destroy (surface);
}
static gboolean
gtk_css_image_win32_parse (GtkCssImage *image,
GtkCssParser *parser,
GFile *base)
{
GtkCssImageWin32 *wimage = GTK_CSS_IMAGE_WIN32 (image);
char *class;
if (!_gtk_css_parser_try (parser, "-gtk-win32-theme-part", TRUE))
{
_gtk_css_parser_error (parser, "'-gtk-win32-theme-part'");
return FALSE;
}
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after '-gtk-win32-theme-part'");
return FALSE;
}
class = _gtk_css_parser_try_name (parser, TRUE);
if (class == NULL)
{
_gtk_css_parser_error (parser,
"Expected name as first argument to '-gtk-win32-theme-part'");
return FALSE;
}
wimage->theme = _gtk_win32_lookup_htheme_by_classname (class);
g_free (class);
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser, "Expected ','");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->part))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->state))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
while ( _gtk_css_parser_try (parser, ",", TRUE))
{
if ( _gtk_css_parser_try (parser, "over", TRUE))
{
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after 'over'");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->part2))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if (!_gtk_css_parser_try_int (parser, &wimage->state2))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
if ( _gtk_css_parser_try (parser, ",", TRUE))
{
if (!_gtk_css_parser_try_double (parser, &wimage->over_alpha))
{
_gtk_css_parser_error (parser, "Expected a valid double value");
return FALSE;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')' at end of 'over'");
return FALSE;
}
}
else if ( _gtk_css_parser_try (parser, "margins", TRUE))
{
guint i;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after 'margins'");
return FALSE;
}
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_try_int (parser, &wimage->margins[i]))
break;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected valid margins");
return FALSE;
}
if (i == 1)
wimage->margins[1] = wimage->margins[0];
if (i <= 2)
wimage->margins[2] = wimage->margins[1];
if (i <= 3)
wimage->margins[3] = wimage->margins[2];
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')' at end of 'margins'");
return FALSE;
}
}
else
{
_gtk_css_parser_error (parser,
"Expected identifier");
return FALSE;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ')'");
return FALSE;
}
return TRUE;
}
static void
gtk_css_image_win32_print (GtkCssImage *image,
GString *string)
{
g_string_append (string, "none /* printing win32 theme components is not implemented */");
}
static void
_gtk_css_image_win32_class_init (GtkCssImageWin32Class *klass)
{
GtkCssImageClass *image_class = GTK_CSS_IMAGE_CLASS (klass);
image_class->draw = gtk_css_image_win32_draw;
image_class->parse = gtk_css_image_win32_parse;
image_class->print = gtk_css_image_win32_print;
}
static void
_gtk_css_image_win32_init (GtkCssImageWin32 *wimage)
{
wimage->over_alpha = 1.0;
wimage->part2 = -1;
wimage->state2 = -1;
}

65
gtk/gtkcssimagewin32private.h Normal file
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@ -0,0 +1,65 @@
/*
* Copyright © 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#ifndef __GTK_CSS_IMAGE_WIN32_PRIVATE_H__
#define __GTK_CSS_IMAGE_WIN32_PRIVATE_H__
#include "gtk/gtkcssimageprivate.h"
#include "gtk/gtkwin32themeprivate.h"
G_BEGIN_DECLS
#define GTK_TYPE_CSS_IMAGE_WIN32 (_gtk_css_image_win32_get_type ())
#define GTK_CSS_IMAGE_WIN32(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_IMAGE_WIN32, GtkCssImageWin32))
#define GTK_CSS_IMAGE_WIN32_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_IMAGE_WIN32, GtkCssImageWin32Class))
#define GTK_IS_CSS_IMAGE_WIN32(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_IMAGE_WIN32))
#define GTK_IS_CSS_IMAGE_WIN32_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_IMAGE_WIN32))
#define GTK_CSS_IMAGE_WIN32_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_IMAGE_WIN32, GtkCssImageWin32Class))
typedef struct _GtkCssImageWin32 GtkCssImageWin32;
typedef struct _GtkCssImageWin32Class GtkCssImageWin32Class;
struct _GtkCssImageWin32
{
GtkCssImage parent;
int part;
int state;
double over_alpha;
int part2;
int state2;
gint margins[4];
HTHEME theme;
};
struct _GtkCssImageWin32Class
{
GtkCssImageClass parent_class;
};
GType _gtk_css_image_win32_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* __GTK_CSS_IMAGE_WIN32_PRIVATE_H__ */