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Add a GtkStyleContext-variant of symbolic icon loading

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This commit is contained in:
Matthias Clasen 2010-11-24 14:40:31 -05:00 committed by Carlos Garnacho
parent 091c882996
commit f90881271f
2 changed files with 97 additions and 0 deletions
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92
gtk/gtkicontheme.c
View File

@ -3071,6 +3071,16 @@ gdk_color_to_css (GdkColor *color)
color->blue >> 8);
}
static gchar *
gdk_rgba_to_css (GdkRGBA *color)
{
return g_strdup_printf ("rgba(%d,%d,%d,%f)",
(gint)(color->red * 255),
(gint)(color->green * 255),
(gint)(color->blue * 255),
color->alpha);
}
static GdkPixbuf *
_gtk_icon_info_load_symbolic_internal (GtkIconInfo *icon_info,
const gchar *css_fg,
@ -3235,6 +3245,88 @@ gtk_icon_info_load_symbolic (GtkIconInfo *icon_info,
return pixbuf;
}
/**
* gtk_icon_info_load_symbolic_for_context:
* @icon_info: a #GtkIconInfo
* context: a #GtkStyleContext
* @was_symbolic: (allow-none): a #gboolean, returns whether the loaded icon
* was a symbolic one and whether the @fg color was applied to it.
* @error: (allow-none): location to store error information on failure,
* or %NULL.
*
* Loads an icon, modifying it to match the system colors for the foreground,
* success, warning and error colors provided. If the icon is not a symbolic
* one, the function will return the result from gtk_icon_info_load_icon().
*
* This allows loading symbolic icons that will match the system theme.
*
* See gtk_icon_info_load_symbolic() for more details.
*
* Return value: (transfer full): a #GdkPixbuf representing the loaded icon
*
* Since: 3.0
**/
GdkPixbuf *
gtk_icon_info_load_symbolic_for_context (GtkIconInfo *icon_info,
GtkStyleContext *context,
gboolean *was_symbolic,
GError **error)
{
GdkPixbuf *pixbuf;
GdkRGBA *color;
gchar *css_fg, *css_success;
gchar *css_warning, *css_error;
if (!icon_info->filename ||
!g_str_has_suffix (icon_info->filename, "-symbolic.svg"))
{
if (was_symbolic)
*was_symbolic = FALSE;
return gtk_icon_info_load_icon (icon_info, error);
}
if (was_symbolic)
*was_symbolic = TRUE;
if (gtk_style_context_lookup_color (context, "color", color))
{
css_fg = gdk_rgba_to_css (color);
gdk_rgba_free (color);
}
css_success = css_warning = css_error = NULL;
if (gtk_style_context_lookup_color (context, "success_color", color))
{
css_success = gdk_rgba_to_css (color);
gdk_rgba_free (color);
}
if (gtk_style_context_lookup_color (context, "warning_color", color))
{
css_warning = gdk_rgba_to_css (color);
gdk_rgba_free (color);
}
if (gtk_style_context_lookup_color (context, "error_color", color))
{
css_error = gdk_rgba_to_css (color);
gdk_rgba_free (color);
}
pixbuf = _gtk_icon_info_load_symbolic_internal (icon_info,
css_fg, css_success,
css_warning, css_error,
error);
g_free (css_fg);
g_free (css_success);
g_free (css_warning);
g_free (css_error);
return pixbuf;
}
/**
* gtk_icon_info_load_symbolic_for_style:
* @icon_info: a #GtkIconInfo

5
gtk/gtkicontheme.h
View File

@ -27,6 +27,7 @@
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gdk/gdk.h>
#include <gtk/gtkstyle.h>
#include <gtk/gtkstylecontext.h>
G_BEGIN_DECLS
@ -178,6 +179,10 @@ GdkPixbuf * gtk_icon_info_load_symbolic (GtkIconInfo *icon_info
GdkRGBA *error_color,
gboolean *was_symbolic,
GError **error);
GdkPixbuf * gtk_icon_info_load_symbolic_for_context (GtkIconInfo *icon_info,
GtkStyleContext *context,
gboolean *was_symbolic,
GError **error);
GdkPixbuf * gtk_icon_info_load_symbolic_for_style (GtkIconInfo *icon_info,
GtkStyle *style,
GtkStateType state,