/** 
 * @file gnome-cmd-style.cc
 * @copyright (C) 2001-2006 Marcus Bjurman\n
 * @copyright (C) 2007-2012 Piotr Eljasiak\n
 * @copyright (C) 2013-2023 Uwe Scholz\n
 *
 * @copyright This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * @copyright 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 General Public License for more details.
 *
 * @copyright You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include <config.h>

#include "gnome-cmd-includes.h"
#include "gnome-cmd-style.h"
#include "gnome-cmd-data.h"
#include "gnome-cmd-types.h"

using namespace std;


GtkStyle *list_style = NULL;
GtkStyle *alt_list_style = NULL;
GtkStyle *sel_list_style = NULL;
GtkStyle *alt_sel_list_style = NULL;


inline GtkStyle *create_list_style (GnomeCmdColorTheme *cols, const gchar *font_name)
{
    GtkStyle *style = gtk_style_new ();

    if (strcmp (font_name, "default") != 0)
    {
        PangoFontDescription *pfont;
        pfont = pango_font_description_from_string (font_name);

        if (pfont && pango_font_description_get_size (pfont) != 0)
        {
            if (style->font_desc)
                pango_font_description_free (style->font_desc);
            style->font_desc = pfont;
        }
    }

    if (!cols->respect_theme)
    {
        style->fg[GTK_STATE_SELECTED] = *cols->curs_fg;
        style->text[GTK_STATE_NORMAL] = *cols->norm_fg;
        style->fg[GTK_STATE_NORMAL] = *cols->norm_fg;

        style->bg[GTK_STATE_SELECTED] = *cols->curs_bg;
        style->base[GTK_STATE_NORMAL] = *cols->norm_bg;
        style->base[GTK_STATE_ACTIVE] = *cols->norm_bg;
    }
    else
    {
        GtkWidget *widget = gtk_combo_new ();
        GtkStyle *default_style = gtk_rc_get_style(widget);
        gtk_widget_destroy (widget);

        if(default_style)
        {
            gtk_style_lookup_color (default_style, "tooltip_fg_color", &style->fg[GTK_STATE_SELECTED]);
            gtk_style_lookup_color (default_style, "fg_color", &style->fg[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "fg_color", &style->text[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "tooltip_bg_color", &style->bg[GTK_STATE_SELECTED]);
            gtk_style_lookup_color (default_style, "bg_color", &style->base[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "bg_color", &style->base[GTK_STATE_ACTIVE]);
        }
    }

    return style;
}


inline GtkStyle *create_alt_list_style (GnomeCmdColorTheme *cols, const gchar *font_name)
{
    GtkStyle *style = gtk_style_new ();

    if (strcmp (font_name, "default") != 0)
    {
        PangoFontDescription *pfont = pango_font_description_from_string (font_name);

        if (pfont && pango_font_description_get_size (pfont) != 0)
        {
            if (style->font_desc)
                pango_font_description_free (style->font_desc);
            style->font_desc = pfont;
        }
    }

    if (!cols->respect_theme)
    {
        style->fg[GTK_STATE_SELECTED] = *cols->curs_fg;
        style->text[GTK_STATE_NORMAL] = *cols->alt_fg;
        style->fg[GTK_STATE_NORMAL] = *cols->alt_fg;

        style->bg[GTK_STATE_SELECTED] = *cols->curs_bg;
        style->base[GTK_STATE_NORMAL] = *cols->alt_bg;
        style->base[GTK_STATE_ACTIVE] = *cols->alt_bg;
    }
    else
    {
        GtkWidget *widget = gtk_combo_new ();
        GtkStyle *default_style = gtk_rc_get_style(widget);
        gtk_widget_destroy (widget);

        if(default_style)
        {
            gtk_style_lookup_color (default_style, "tooltip_fg_color", &style->fg[GTK_STATE_SELECTED]);
            gtk_style_lookup_color (default_style, "fg_color", &style->fg[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "fg_color", &style->text[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "tooltip_bg_color", &style->bg[GTK_STATE_SELECTED]);
            gtk_style_lookup_color (default_style, "bg_color", &style->base[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "bg_color", &style->base[GTK_STATE_ACTIVE]);
        }
    }

    return style;
}


inline GtkStyle *create_sel_list_style (GnomeCmdColorTheme *cols, const gchar *font_name)
{
    GtkStyle *style = gtk_style_new ();

    if (strcmp (font_name, "default") != 0)
    {
        PangoFontDescription *pfont = pango_font_description_from_string (font_name);

        if (pfont && pango_font_description_get_size (pfont) != 0)
        {
            if (style->font_desc)
                pango_font_description_free (style->font_desc);
            style->font_desc = pfont;
        }
    }

    if (!cols->respect_theme)
    {
        style->fg[GTK_STATE_SELECTED] = *cols->sel_fg;
        style->fg[GTK_STATE_NORMAL] = *cols->sel_fg;
        style->text[GTK_STATE_NORMAL] = *cols->sel_fg;

        style->bg[GTK_STATE_SELECTED] = *cols->curs_bg;
        style->bg[GTK_STATE_NORMAL] = *cols->sel_bg;
        style->base[GTK_STATE_NORMAL] = *cols->sel_bg;
        style->base[GTK_STATE_ACTIVE] = *cols->sel_bg;
    }
    else
    {
        GtkWidget *widget = gtk_combo_new ();
        GtkStyle *default_style = gtk_rc_get_style(widget);
        gtk_widget_destroy (widget);

        if(default_style)
        {
            gtk_style_lookup_color (default_style, "selected_fg_color", &style->fg[GTK_STATE_SELECTED]);
            if (!gtk_style_lookup_color (default_style, "selected_fg_color", &style->fg[GTK_STATE_NORMAL]))
                gdk_color_parse("#ffffff", &style->fg[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "text_color", &style->text[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "bg_color", &style->bg[GTK_STATE_SELECTED]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->bg[GTK_STATE_NORMAL]))
                gdk_color_parse("#000000", &style->bg[GTK_STATE_NORMAL]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->base[GTK_STATE_NORMAL]))
                gdk_color_parse("#000000", &style->base[GTK_STATE_NORMAL]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->base[GTK_STATE_ACTIVE]))
                gdk_color_parse("#000000", &style->base[GTK_STATE_ACTIVE]);
        }
    }


    return style;
}


inline GtkStyle *create_alt_sel_list_style (GnomeCmdColorTheme *cols, const gchar *font_name)
{
    GtkStyle *style = gtk_style_new ();

    if (strcmp (font_name, "default") != 0)
    {
        PangoFontDescription *pfont = pango_font_description_from_string (font_name);

        if (pfont && pango_font_description_get_size (pfont) != 0)
        {
            if (style->font_desc)
                pango_font_description_free (style->font_desc);
            style->font_desc = pfont;
        }
    }

    if (!cols->respect_theme)
    {
        style->fg[GTK_STATE_SELECTED] = *cols->sel_fg;
        style->fg[GTK_STATE_NORMAL] = *cols->sel_fg;
        style->text[GTK_STATE_NORMAL] = *cols->sel_fg;

        style->bg[GTK_STATE_SELECTED] = *cols->curs_bg;
        style->bg[GTK_STATE_NORMAL] = *cols->sel_bg;
        style->base[GTK_STATE_NORMAL] = *cols->sel_bg;
        style->base[GTK_STATE_ACTIVE] = *cols->sel_bg;
    }
    else
    {
        GtkWidget *widget = gtk_combo_new ();
        GtkStyle *default_style = gtk_rc_get_style(widget);
        gtk_widget_destroy (widget);

        if(default_style)
        {
            gtk_style_lookup_color (default_style, "selected_fg_color", &style->fg[GTK_STATE_SELECTED]);
            if (!gtk_style_lookup_color (default_style, "selected_fg_color", &style->fg[GTK_STATE_NORMAL]))
                gdk_color_parse("#ffffff", &style->fg[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "text_color", &style->text[GTK_STATE_NORMAL]);
            gtk_style_lookup_color (default_style, "bg_color", &style->bg[GTK_STATE_SELECTED]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->bg[GTK_STATE_NORMAL]))
                gdk_color_parse("#000000", &style->bg[GTK_STATE_NORMAL]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->base[GTK_STATE_NORMAL]))
                gdk_color_parse("#000000", &style->base[GTK_STATE_NORMAL]);
            if(!gtk_style_lookup_color (default_style, "selected_bg_color", &style->base[GTK_STATE_ACTIVE]))
                gdk_color_parse("#000000", &style->base[GTK_STATE_ACTIVE]);
        }
    }

    return style;
}


void gnome_cmd_style_create (GnomeCmdData::Options &cfg)
{
    if (list_style) g_object_unref (list_style);
    if (alt_list_style) g_object_unref (alt_list_style);
    if (sel_list_style) g_object_unref (sel_list_style);
    if (alt_sel_list_style) g_object_unref (alt_sel_list_style);

    GnomeCmdColorTheme *cols = cfg.get_current_color_theme();
    const gchar *font_name = cfg.list_font;

    list_style = create_list_style (cols, font_name);
    alt_list_style = create_alt_list_style (cols, font_name);
    sel_list_style = create_sel_list_style (cols, font_name);
    alt_sel_list_style = create_alt_sel_list_style (cols, font_name);
}