diff options
Diffstat (limited to 'e-util/e-filter-color.c')
| -rw-r--r-- | e-util/e-filter-color.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/e-util/e-filter-color.c b/e-util/e-filter-color.c new file mode 100644 index 0000000000..213530fbb2 --- /dev/null +++ b/e-util/e-filter-color.c @@ -0,0 +1,163 @@ +/* + * This program 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) version 3. + * + * This program 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 the program; if not, see <http://www.gnu.org/licenses/> + * + * + * Authors: + * Not Zed <notzed@lostzed.mmc.com.au> + * Jeffrey Stedfast <fejj@ximian.com> + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <gtk/gtk.h> + +#include "e-filter-color.h" + +G_DEFINE_TYPE ( + EFilterColor, + e_filter_color, + E_TYPE_FILTER_ELEMENT) + +static void +set_color (GtkColorButton *color_button, + EFilterColor *fc) +{ + gtk_color_button_get_color (color_button, &fc->color); +} + +static gint +filter_color_eq (EFilterElement *element_a, + EFilterElement *element_b) +{ + EFilterColor *color_a = E_FILTER_COLOR (element_a); + EFilterColor *color_b = E_FILTER_COLOR (element_b); + + return E_FILTER_ELEMENT_CLASS (e_filter_color_parent_class)-> + eq (element_a, element_b) && + gdk_color_equal (&color_a->color, &color_b->color); +} + +static xmlNodePtr +filter_color_xml_encode (EFilterElement *element) +{ + EFilterColor *fc = E_FILTER_COLOR (element); + xmlNodePtr value; + gchar spec[16]; + + g_snprintf ( + spec, sizeof (spec), "#%04x%04x%04x", + fc->color.red, fc->color.green, fc->color.blue); + + value = xmlNewNode (NULL, (xmlChar *)"value"); + xmlSetProp (value, (xmlChar *)"type", (xmlChar *)"colour"); + xmlSetProp (value, (xmlChar *)"name", (xmlChar *) element->name); + xmlSetProp (value, (xmlChar *)"spec", (xmlChar *) spec); + + return value; +} + +static gint +filter_color_xml_decode (EFilterElement *element, + xmlNodePtr node) +{ + EFilterColor *fc = E_FILTER_COLOR (element); + xmlChar *prop; + + xmlFree (element->name); + element->name = (gchar *) xmlGetProp (node, (xmlChar *)"name"); + + prop = xmlGetProp (node, (xmlChar *)"spec"); + if (prop != NULL) { + gdk_color_parse ((gchar *) prop, &fc->color); + xmlFree (prop); + } else { + /* try reading the old RGB properties */ + prop = xmlGetProp (node, (xmlChar *)"red"); + sscanf ((gchar *) prop, "%" G_GINT16_MODIFIER "x", &fc->color.red); + xmlFree (prop); + prop = xmlGetProp (node, (xmlChar *)"green"); + sscanf ((gchar *) prop, "%" G_GINT16_MODIFIER "x", &fc->color.green); + xmlFree (prop); + prop = xmlGetProp (node, (xmlChar *)"blue"); + sscanf ((gchar *) prop, "%" G_GINT16_MODIFIER "x", &fc->color.blue); + xmlFree (prop); + } + + return 0; +} + +static GtkWidget * +filter_color_get_widget (EFilterElement *element) +{ + EFilterColor *fc = E_FILTER_COLOR (element); + GtkWidget *color_button; + + color_button = gtk_color_button_new_with_color (&fc->color); + gtk_widget_show (color_button); + + g_signal_connect ( + color_button, "color_set", + G_CALLBACK (set_color), element); + + return color_button; +} + +static void +filter_color_format_sexp (EFilterElement *element, + GString *out) +{ + EFilterColor *fc = E_FILTER_COLOR (element); + gchar spec[16]; + + g_snprintf ( + spec, sizeof (spec), "#%04x%04x%04x", + fc->color.red, fc->color.green, fc->color.blue); + camel_sexp_encode_string (out, spec); +} + +static void +e_filter_color_class_init (EFilterColorClass *class) +{ + EFilterElementClass *filter_element_class; + + filter_element_class = E_FILTER_ELEMENT_CLASS (class); + filter_element_class->eq = filter_color_eq; + filter_element_class->xml_encode = filter_color_xml_encode; + filter_element_class->xml_decode = filter_color_xml_decode; + filter_element_class->get_widget = filter_color_get_widget; + filter_element_class->format_sexp = filter_color_format_sexp; +} + +static void +e_filter_color_init (EFilterColor *filter) +{ +} + +/** + * filter_color_new: + * + * Create a new EFilterColor object. + * + * Return value: A new #EFilterColor object. + **/ +EFilterColor * +e_filter_color_new (void) +{ + return g_object_new (E_TYPE_FILTER_COLOR, NULL); +} |