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Implement page icon based tab colors

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Colorful Tabs now uses the icon of a page as the basis for the
tab color, if it has one, otherwise falls back to the previous
address based hash.
The forground color is also adjusted for dark colored tabs.
This commit is contained in:
Samuel Creshal 2010-03-19 21:08:28 +01:00 committed by Christian Dywan
parent 0d27d6f17d
commit 3cbce9896b
1 changed files with 88 additions and 22 deletions
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110
extensions/colorful-tabs.c
View file

@ -1,5 +1,6 @@
/*
Copyright (C) 2009 Christian Dywan <christian@twotoasts.de>
Copyright (C) 2010 Samuel Creshal <creshal@arcor.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@ -11,56 +12,118 @@
#include <midori/midori.h>
static void
colorful_tabs_modify_fg (GtkWidget* child,
GdkColor* color)
{
if (GTK_IS_LABEL (child))
{
gtk_widget_modify_fg (child, GTK_STATE_ACTIVE, color);
gtk_widget_modify_fg (child, GTK_STATE_NORMAL, color);
}
}
static void
colorful_tabs_view_notify_uri_cb (MidoriView* view,
GParamSpec* pspec,
MidoriExtension* extension)
{
GtkWidget* box;
GtkWidget* label;
SoupURI* uri;
gchar* hash;
gchar* colorstr;
GdkColor color;
GdkColor fgcolor;
GdkPixbuf* icon;
label = midori_view_get_proxy_tab_label (view);
/* Find a color that is unique to an address. We merely compute
a hash value, pick the first 6 + 1 characters and turn the
first into a hash sign, ie. #8b424b. In case a color is too
dark, we lighten it up a litte. Finally we make the event box
visible and modify its background. */
if ((uri = soup_uri_new (midori_view_get_display_uri (view))) && uri->host)
if ((uri = soup_uri_new (midori_view_get_display_uri (view)))
&& uri->host && (katze_object_get_enum (view, "load-status") == MIDORI_LOAD_FINISHED))
{
hash = g_compute_checksum_for_string (G_CHECKSUM_MD5, uri->host, -1);
icon = midori_view_get_icon (view);
if (midori_view_get_icon_uri (view) != NULL)
{
GdkPixbuf* newpix;
guchar* pixels;
newpix = gdk_pixbuf_scale_simple (icon, 1, 1, GDK_INTERP_BILINEAR);
g_return_if_fail (gdk_pixbuf_get_bits_per_sample (newpix) == 8);
pixels = gdk_pixbuf_get_pixels (newpix);
color.red = pixels[0] * 225;
color.green = pixels[1] * 225;
color.blue = pixels[2] * 225;
}
else
{
gchar* hash = g_compute_checksum_for_string (G_CHECKSUM_MD5, uri->host, 1);
colorstr = g_strndup (hash, 6 + 1);
g_free (hash);
colorstr[0] = '#';
gdk_color_parse (colorstr, &color);
}
soup_uri_free (uri);
colorstr = g_strndup (hash, 6 + 1);
g_free (hash);
colorstr[0] = '#';
gdk_color_parse (colorstr, &color);
if (color.red < 35000)
color.red += 25000 + (color.blue + 1) / 2;
if (color.green < 35000)
color.green += 25000 + (color.red + 1) / 2;
if (color.blue < 35000)
color.blue += 25000 + (color.green + 1) / 2;
if ((color.red < 35000)
&& (color.green < 35000)
&& (color.blue < 35000))
{
color.red += 20000;
color.green += 20000;
color.blue += 20000;
}
/* Ensure high contrast by enforcing black/ white text colour. */
if ((color.red < 41000)
&& (color.green < 41000)
&& (color.blue < 41000))
gdk_color_parse ("#fff", &fgcolor);
else
gdk_color_parse ("#000", &fgcolor);
box = gtk_bin_get_child (GTK_BIN (label));
gtk_event_box_set_visible_window (GTK_EVENT_BOX (label), TRUE);
gtk_container_foreach (GTK_CONTAINER (box),
(GtkCallback) colorful_tabs_modify_fg,
&fgcolor);
gtk_widget_modify_bg (label, GTK_STATE_NORMAL, &color);
if (color.red < 10000)
color.red = 5000;
else
color.red -= 5000;
if (color.blue < 10000)
color.blue = 5000;
else
color.blue -= 5000;
if (color.green < 10000)
color.green = 5000;
else
color.green -= 5000;
gtk_widget_modify_bg (label, GTK_STATE_ACTIVE, &color);
}
else
{
gtk_widget_modify_bg (label, GTK_STATE_NORMAL, NULL);
gtk_widget_modify_bg (label, GTK_STATE_ACTIVE, NULL);
gtk_container_foreach (GTK_CONTAINER (gtk_bin_get_child (GTK_BIN (label))),
(GtkCallback) colorful_tabs_modify_fg,
NULL);
}
}
static void
colorful_tabs_browser_add_tab_cb (MidoriBrowser* browser,
GtkWidget* view,
MidoriExtension* extension)
{
colorful_tabs_view_notify_uri_cb (MIDORI_VIEW (view), NULL, extension);
g_signal_connect (view, "notify::uri",
g_signal_connect (view, "notify::icon",
G_CALLBACK (colorful_tabs_view_notify_uri_cb), extension);
}
@ -90,6 +153,9 @@ colorful_tabs_deactivate_cb (MidoriExtension* extension,
gtk_event_box_set_visible_window (GTK_EVENT_BOX (label), FALSE);
gtk_widget_modify_bg (label, GTK_STATE_NORMAL, NULL);
gtk_widget_modify_bg (label, GTK_STATE_ACTIVE, NULL);
gtk_container_foreach (GTK_CONTAINER (gtk_bin_get_child (GTK_BIN (label))),
(GtkCallback) colorful_tabs_modify_fg,
NULL);
g_signal_handlers_disconnect_by_func (
view, colorful_tabs_view_notify_uri_cb, extension);
}
@ -137,8 +203,8 @@ extension_init (void)
MidoriExtension* extension = g_object_new (MIDORI_TYPE_EXTENSION,
"name", _("Colorful Tabs"),
"description", _("Tint each tab distinctly"),
"version", "0.1",
"authors", "Christian Dywan <christian@twotoasts.de>",
"version", "0.5",
"authors", "Christian Dywan <christian@twotoasts.de>, Samuel Creshal <creshal@arcor.de>",
NULL);
g_signal_connect (extension, "activate",