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Add initial cut at win32 theme support for CSS

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We now support -gtk-win32-theme-part(class,part,state) in background
and border-image CSS properties. This renders the corresponding
theme part using DrawThemeBackground() and acts as a base for a
CSS based windows theme.

Note that we build the parsing code even on non-win32 so that
all themese will parse the same on all arches. We draw pink instead
of the actual theme parts on non-win32 though.
This commit is contained in:
Alexander Larsson
2011-11-15 20:52:45 +01:00
parent 8b644b40b1
commit abe6598a13
5 changed files with 455 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
gtk/Makefile.am
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@ -465,6 +465,7 @@ gtk_private_h_sources = \
gtktreedatalist.h \
gtktreeprivate.h \
gtkwidgetprivate.h \
gtkwin32themeprivate.h \
gtkwindowprivate.h \
gtktreemenu.h \
$(gtk_clipboard_dnd_h_sources) \
@ -724,6 +725,7 @@ gtk_base_c_sources = \
gtkwidget.c \
gtkwidgetpath.c \
gtkwindow.c \
gtkwin32theme.c \
$(gtk_clipboard_dnd_c_sources) \
$(gtk_appchooser_impl_c_sources)

7
gtk/gtkstyleproperties.c
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@ -37,6 +37,8 @@
#include "gtkstylepropertyprivate.h"
#include "gtkintl.h"
#include "gtkwin32themeprivate.h"
/**
* SECTION:gtkstyleproperties
* @Short_description: Store for style property information
@ -465,9 +467,10 @@ _gtk_style_properties_set_property_by_property (GtkStyleProperties *props,
}
else if (style_prop->pspec->value_type == CAIRO_GOBJECT_TYPE_PATTERN)
{
/* Allow GtkGradient as a substitute */
/* Allow GtkGradient and theme part as a substitute */
g_return_if_fail (value_type == CAIRO_GOBJECT_TYPE_PATTERN ||
value_type == GTK_TYPE_GRADIENT);
value_type == GTK_TYPE_GRADIENT ||
value_type == GTK_TYPE_WIN32_THEME_PART);
}
else if (style_prop->pspec->value_type == G_TYPE_INT)
{

33
gtk/gtkstyleproperty.c
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@ -41,6 +41,7 @@
#include "gtkshadowprivate.h"
#include "gtkthemingengine.h"
#include "gtktypebuiltins.h"
#include "gtkwin32themeprivate.h"
/* this is in case round() is not provided by the compiler,
* such as in the case of C89 compilers, like MSVC
@ -908,6 +909,11 @@ pattern_value_parse (GtkCssParser *parser,
{
if (_gtk_css_parser_begins_with (parser, '-'))
{
int res;
res = _gtk_win32_theme_part_parse (parser, base, value);
if (res >= 0)
return res > 0;
/* < 0 => continue */
g_value_unset (value);
g_value_init (value, GTK_TYPE_GRADIENT);
return gradient_value_parse (parser, base, value);
@ -2474,6 +2480,27 @@ resolve_color_rgb (GtkStyleProperties *props,
return TRUE;
}
static gboolean
resolve_win32_theme_part (GtkStyleProperties *props,
GValue *value,
GValue *value_out,
GtkStylePropertyContext *context)
{
GtkWin32ThemePart *part;
cairo_pattern_t *pattern;
part = g_value_get_boxed (value);
if (part == NULL)
return FALSE;
pattern = _gtk_win32_theme_part_render (part, context->width, context->height);
g_value_take_boxed (value_out, pattern);
return TRUE;
}
static gboolean
resolve_gradient (GtkStyleProperties *props,
GValue *value)
@ -2560,6 +2587,12 @@ _gtk_style_property_resolve (const GtkStyleProperty *property,
if (!resolve_shadow (props, val))
_gtk_style_property_default_value (property, props, state, val);
}
else if (G_VALUE_TYPE (val) == GTK_TYPE_WIN32_THEME_PART)
{
if (resolve_win32_theme_part (props, val, val_out, context))
return; /* Don't copy val, this sets val_out */
_gtk_style_property_default_value (property, props, state, val);
}
out:
g_value_copy (val, val_out);

367
gtk/gtkwin32theme.c Normal file
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@ -0,0 +1,367 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
* Copyright (C) 2011 Red Hat, Inc.
*
* Authors: Carlos Garnacho <carlosg@gnome.org>
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include "gtkwin32themeprivate.h"
#ifdef G_OS_WIN32
#include <windows.h>
#include <cairo-win32.h>
typedef HANDLE HTHEME;
#define UXTHEME_DLL "uxtheme.dll"
static HINSTANCE uxtheme_dll = NULL;
static gboolean use_xp_theme = FALSE;
typedef HRESULT (FAR PASCAL *GetThemeSysFontFunc) (HTHEME hTheme, int iFontID, OUT LOGFONTW *plf);
typedef int (FAR PASCAL *GetThemeSysSizeFunc) (HTHEME hTheme, int iSizeId);
typedef COLORREF (FAR PASCAL *GetThemeSysColorFunc) (HTHEME hTheme,
int iColorID);
typedef HTHEME (FAR PASCAL *OpenThemeDataFunc) (HWND hwnd,
LPCWSTR pszClassList);
typedef HRESULT (FAR PASCAL *CloseThemeDataFunc) (HTHEME theme);
typedef HRESULT (FAR PASCAL *DrawThemeBackgroundFunc) (HTHEME hTheme, HDC hdc, int iPartId, int iStateId,
const RECT *pRect, const RECT *pClipRect);
typedef HRESULT (FAR PASCAL *EnableThemeDialogTextureFunc) (HWND hwnd,
DWORD dwFlags);
typedef BOOL (FAR PASCAL *IsThemeActiveFunc) (VOID);
typedef BOOL (FAR PASCAL *IsAppThemedFunc) (VOID);
typedef BOOL (FAR PASCAL *IsThemeBackgroundPartiallyTransparentFunc) (HTHEME hTheme,
int iPartId,
int iStateId);
typedef HRESULT (FAR PASCAL *DrawThemeParentBackgroundFunc) (HWND hwnd,
HDC hdc,
RECT *prc);
typedef HRESULT (FAR PASCAL *GetThemePartSizeFunc) (HTHEME hTheme,
HDC hdc,
int iPartId,
int iStateId,
RECT *prc,
int eSize,
SIZE *psz);
static GetThemeSysFontFunc get_theme_sys_font = NULL;
static GetThemeSysColorFunc get_theme_sys_color = NULL;
static GetThemeSysSizeFunc get_theme_sys_metric = NULL;
static OpenThemeDataFunc open_theme_data = NULL;
static CloseThemeDataFunc close_theme_data = NULL;
static DrawThemeBackgroundFunc draw_theme_background = NULL;
static EnableThemeDialogTextureFunc enable_theme_dialog_texture = NULL;
static IsThemeActiveFunc is_theme_active = NULL;
static IsAppThemedFunc is_app_themed = NULL;
static IsThemeBackgroundPartiallyTransparentFunc is_theme_partially_transparent = NULL;
static DrawThemeParentBackgroundFunc draw_theme_parent_background = NULL;
static GetThemePartSizeFunc get_theme_part_size = NULL;
static GHashTable *hthemes_by_class = NULL;
static void
_gtk_win32_theme_init (void)
{
char *buf;
char dummy;
int n, k;
if (uxtheme_dll)
return;
n = GetSystemDirectory (&dummy, 0);
if (n <= 0)
return;
buf = g_malloc (n + 1 + strlen (UXTHEME_DLL));
k = GetSystemDirectory (buf, n);
if (k == 0 || k > n)
{
g_free (buf);
return;
}
if (!G_IS_DIR_SEPARATOR (buf[strlen (buf) -1]))
strcat (buf, G_DIR_SEPARATOR_S);
strcat (buf, UXTHEME_DLL);
uxtheme_dll = LoadLibrary (buf);
g_free (buf);
if (!uxtheme_dll)
return;
is_app_themed = (IsAppThemedFunc) GetProcAddress (uxtheme_dll, "IsAppThemed");
if (is_app_themed)
{
is_theme_active = (IsThemeActiveFunc) GetProcAddress (uxtheme_dll, "IsThemeActive");
open_theme_data = (OpenThemeDataFunc) GetProcAddress (uxtheme_dll, "OpenThemeData");
close_theme_data = (CloseThemeDataFunc) GetProcAddress (uxtheme_dll, "CloseThemeData");
draw_theme_background = (DrawThemeBackgroundFunc) GetProcAddress (uxtheme_dll, "DrawThemeBackground");
enable_theme_dialog_texture = (EnableThemeDialogTextureFunc) GetProcAddress (uxtheme_dll, "EnableThemeDialogTexture");
get_theme_sys_font = (GetThemeSysFontFunc) GetProcAddress (uxtheme_dll, "GetThemeSysFont");
get_theme_sys_color = (GetThemeSysColorFunc) GetProcAddress (uxtheme_dll, "GetThemeSysColor");
get_theme_sys_metric = (GetThemeSysSizeFunc) GetProcAddress (uxtheme_dll, "GetThemeSysSize");
is_theme_partially_transparent = (IsThemeBackgroundPartiallyTransparentFunc) GetProcAddress (uxtheme_dll, "IsThemeBackgroundPartiallyTransparent");
draw_theme_parent_background = (DrawThemeParentBackgroundFunc) GetProcAddress (uxtheme_dll, "DrawThemeParentBackground");
get_theme_part_size = (GetThemePartSizeFunc) GetProcAddress (uxtheme_dll, "GetThemePartSize");
}
if (is_app_themed && is_theme_active)
{
use_xp_theme = (is_app_themed () && is_theme_active ());
}
else
{
use_xp_theme = FALSE;
}
hthemes_by_class = g_hash_table_new (g_str_hash, g_str_equal);
}
static HTHEME
lookup_htheme_by_classname (const char *class)
{
HTHEME theme;
guint16 *wclass;
char *lower;
lower = g_ascii_strdown (class, -1);
theme = (HTHEME) g_hash_table_lookup (hthemes_by_class, lower);
if (theme)
{
g_free (lower);
return theme;
}
wclass = g_utf8_to_utf16 (lower, -1, NULL, NULL, NULL);
theme = open_theme_data (NULL, wclass);
g_free (wclass);
if (theme == NULL)
{
g_free (lower);
return NULL;
}
/* Takes ownership of lower: */
g_hash_table_insert (hthemes_by_class, lower, theme);
return theme;
}
#else
typedef void * HTHEME;
static void
_gtk_win32_theme_init (void)
{
}
static HTHEME
lookup_htheme_by_classname (const char *class)
{
return NULL;
}
#endif /* G_OS_WIN32 */
G_DEFINE_BOXED_TYPE_WITH_CODE (GtkWin32ThemePart, _gtk_win32_theme_part,
_gtk_win32_theme_part_ref, _gtk_win32_theme_part_unref,
_gtk_win32_theme_init() )
struct _GtkWin32ThemePart {
HTHEME theme;
int part;
int state;
gint ref_count;
};
GtkWin32ThemePart *
_gtk_win32_theme_part_new (const char *class,
int xp_part, int state)
{
GtkWin32ThemePart *part;
part = g_slice_new0 (GtkWin32ThemePart);
part->ref_count = 1;
part->theme = lookup_htheme_by_classname (class);
part->part = xp_part;
part->state = state;
return part;
}
GtkWin32ThemePart *
_gtk_win32_theme_part_ref (GtkWin32ThemePart *part)
{
g_return_val_if_fail (part != NULL, NULL);
part->ref_count++;
return part;
}
void
_gtk_win32_theme_part_unref (GtkWin32ThemePart *part)
{
g_return_if_fail (part != NULL);
part->ref_count--;
if (part->ref_count == 0)
{
g_slice_free (GtkWin32ThemePart, part);
}
}
int
_gtk_win32_theme_part_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
char *class;
int xp_part, state;
GtkWin32ThemePart *theme_part;
if (!_gtk_css_parser_try (parser, "-gtk-win32-theme-part", TRUE))
{
return -1;
}
g_value_unset (value);
g_value_init (value, GTK_TYPE_WIN32_THEME_PART);
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after '-gtk-win32-theme-part'");
return 0;
}
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 0;
}
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
g_free (class);
_gtk_css_parser_error (parser,
"Expected ','");
return 0;
}
if (!_gtk_css_parser_try_int (parser, &xp_part))
{
g_free (class);
_gtk_css_parser_error (parser, "Expected a valid integer value");
return 0;
}
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
g_free (class);
_gtk_css_parser_error (parser,
"Expected ','");
return 0;
}
if (!_gtk_css_parser_try_int (parser, &state))
{
g_free (class);
_gtk_css_parser_error (parser, "Expected a valid integer value");
return 0;
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
g_free (class);
_gtk_css_parser_error (parser,
"Expected ')'");
return 0;
}
theme_part = _gtk_win32_theme_part_new (class, xp_part, state);
g_free (class);
g_value_take_boxed (value, theme_part);
return 1;
}
cairo_pattern_t *
_gtk_win32_theme_part_render (GtkWin32ThemePart *part,
int width,
int height)
{
#ifdef G_OS_WIN32
cairo_surface_t *surface, *image;
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
HDC hdc;
RECT rect;
HRESULT res;
cairo_user_data_key_t key;
surface = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_ARGB32, width, height);
hdc = cairo_win32_surface_get_dc (surface);
rect.left = 0;
rect.top = 0;
rect.right = width;
rect.bottom = height;
res = draw_theme_background (part->theme, hdc, part->part, part->state, &rect, &rect);
/* We need to return an image surface, as that is what the code expects in order
to get the size */
image = cairo_win32_surface_get_image (surface);
pattern = cairo_pattern_create_for_surface (cairo_surface_reference (image));
cairo_matrix_init_scale (&matrix,
width,
height);
cairo_pattern_set_matrix (pattern, &matrix);
/* We can't immediately destroy the surface, because that would free the data
the image surface refers too. Instead we destroy it with the pattern. */
cairo_pattern_set_user_data (pattern,
&key,
surface, (cairo_destroy_func_t) cairo_surface_destroy);
return pattern;
#else
GdkRGBA color;
gdk_rgba_parse (&color, "pink");
return cairo_pattern_create_rgb (color.red, color.green, color.blue);
#endif
}

48
gtk/gtkwin32themeprivate.h Normal file
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@ -0,0 +1,48 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2011 Red Hat, Inc.
*
* Authors: Alexander Larsson <alexl@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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GTK_WIN32_THEME_PART_H__
#define __GTK_WIN32_THEME_PART_H__
#include "gtkcssparserprivate.h"
G_BEGIN_DECLS
typedef struct _GtkWin32ThemePart GtkWin32ThemePart;
#define GTK_TYPE_WIN32_THEME_PART (_gtk_win32_theme_part_get_type ())
GType _gtk_win32_theme_part_get_type (void) G_GNUC_CONST;
GtkWin32ThemePart *_gtk_win32_theme_part_new (const char *class,
int xp_part, int state);
GtkWin32ThemePart *_gtk_win32_theme_part_ref (GtkWin32ThemePart *part);
void _gtk_win32_theme_part_unref (GtkWin32ThemePart *part);
int _gtk_win32_theme_part_parse (GtkCssParser *parser,
GFile *base,
GValue *value);
cairo_pattern_t *_gtk_win32_theme_part_render (GtkWin32ThemePart *part,
int width,
int height);
G_END_DECLS
#endif /* __GTK_WIN32_THEME_PART_H__ */