/* ev-annotation-properties-dialog.c
 *  this file is part of evince, a gnome document viewer
 *
 * Copyright (C) 2010 Carlos Garcia Campos  <carlosgc@gnome.org>
 *
 * Evince 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.
 *
 * Evince 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.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

#include <config.h>

#include <glib/gi18n.h>

#include "ev-annotation-properties-dialog.h"

enum {
	PROP_0,
	PROP_ANNOT_TYPE
};

struct _EvAnnotationPropertiesDialog {
	GtkDialog        base_instance;

	EvAnnotationType annot_type;
	EvAnnotation    *annot;

	GtkWidget       *grid;

	GtkWidget       *author;
	GtkWidget       *color;
	GtkWidget       *opacity;
	GtkWidget       *popup_state;

	/* Text Annotations */
	GtkWidget       *icon;
};

struct _EvAnnotationPropertiesDialogClass {
	GtkDialogClass base_class;
};

G_DEFINE_TYPE (EvAnnotationPropertiesDialog, ev_annotation_properties_dialog, GTK_TYPE_DIALOG)

static void
ev_annotation_properties_dialog_dispose (GObject *object)
{
	EvAnnotationPropertiesDialog *dialog = EV_ANNOTATION_PROPERTIES_DIALOG (object);

	if (dialog->annot) {
		g_object_unref (dialog->annot);
		dialog->annot = NULL;
	}

	G_OBJECT_CLASS (ev_annotation_properties_dialog_parent_class)->dispose (object);
}

static void
ev_annotation_properties_dialog_set_property (GObject      *object,
					      guint         prop_id,
					      const GValue *value,
					      GParamSpec   *pspec)
{
	EvAnnotationPropertiesDialog *dialog = EV_ANNOTATION_PROPERTIES_DIALOG (object);

	switch (prop_id) {
	case PROP_ANNOT_TYPE:
		dialog->annot_type = g_value_get_enum (value);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
	}
}

static void
ev_annotation_properties_dialog_constructed (GObject *object)
{
	EvAnnotationPropertiesDialog *dialog = EV_ANNOTATION_PROPERTIES_DIALOG (object);
	GtkWidget *grid = dialog->grid;
	GtkWidget *label;

	switch (dialog->annot_type) {
	case EV_ANNOTATION_TYPE_TEXT:
		label = gtk_label_new (_("Icon:"));
		gtk_misc_set_alignment (GTK_MISC (label), 0., 0.5);
		gtk_grid_attach (GTK_GRID (grid), label, 0, 5, 1, 1);
		gtk_widget_show (label);

		dialog->icon = gtk_combo_box_text_new ();
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Note"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Comment"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Key"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Help"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("New Paragraph"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Paragraph"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Insert"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Cross"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Circle"));
		gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (dialog->icon), _("Unknown"));
		gtk_combo_box_set_active (GTK_COMBO_BOX (dialog->icon), 0);
		gtk_grid_attach (GTK_GRID (grid), dialog->icon, 1, 5, 1, 1);
                gtk_widget_set_hexpand (dialog->icon, TRUE);
		gtk_widget_show (dialog->icon);

		break;
	case EV_ANNOTATION_TYPE_ATTACHMENT:
		/* TODO */
	default:
		break;
	}
}

static void
ev_annotation_properties_dialog_init (EvAnnotationPropertiesDialog *annot_dialog)
{
	GtkDialog *dialog = GTK_DIALOG (annot_dialog);
	GtkWidget *content_area;
	GtkWidget *label;
	GtkWidget *grid;
	GtkWidget *hbox;
	gchar     *markup;
        const GdkRGBA yellow = { 1., 1., 0., 1. };

	gtk_window_set_title (GTK_WINDOW (annot_dialog), _("Annotation Properties"));
	gtk_window_set_destroy_with_parent (GTK_WINDOW (annot_dialog), TRUE);
	gtk_container_set_border_width (GTK_CONTAINER (annot_dialog), 5);
	gtk_dialog_add_buttons (dialog,
				GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
				GTK_STOCK_APPLY, GTK_RESPONSE_APPLY,
				NULL);
	gtk_dialog_set_default_response (dialog, GTK_RESPONSE_APPLY);

	content_area = gtk_dialog_get_content_area (dialog);
	gtk_box_set_spacing (GTK_BOX (content_area), 2);

	grid = gtk_grid_new ();
	annot_dialog->grid = grid;
	gtk_grid_set_column_spacing (GTK_GRID (grid), 12);
	gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
	gtk_container_set_border_width (GTK_CONTAINER (grid), 12);
	gtk_box_pack_start (GTK_BOX (content_area), grid, FALSE, FALSE, 0);
	gtk_widget_show (grid);

	label = gtk_label_new (_("Author:"));
	gtk_misc_set_alignment (GTK_MISC (label), 0., 0.5);
	gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
	gtk_widget_show (label);

	annot_dialog->author = gtk_entry_new ();
	gtk_entry_set_text (GTK_ENTRY (annot_dialog->author), g_get_real_name ());
	gtk_grid_attach (GTK_GRID (grid), annot_dialog->author, 1, 0, 1, 1);
        gtk_widget_set_hexpand (annot_dialog->author, TRUE);
	gtk_widget_show (annot_dialog->author);

	label = gtk_label_new (_("Color:"));
	gtk_misc_set_alignment (GTK_MISC (label), 0., 0.5);
	gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
	gtk_widget_show (label);

	annot_dialog->color = gtk_color_button_new_with_rgba (&yellow);
	gtk_grid_attach (GTK_GRID (grid), annot_dialog->color, 1, 1, 1, 1);
        gtk_widget_set_hexpand (annot_dialog->color, TRUE);
	gtk_widget_show (annot_dialog->color);

	label = gtk_label_new (_("Style:"));
	gtk_misc_set_alignment (GTK_MISC (label), 0., 0.5);
	gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
	gtk_widget_show (label);

	annot_dialog->opacity = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
                                                          0, 100, 5);
	gtk_range_set_value (GTK_RANGE (annot_dialog->opacity), 100);
	gtk_grid_attach (GTK_GRID (grid), annot_dialog->opacity, 1, 2, 1, 1);
        gtk_widget_set_hexpand (annot_dialog->opacity, TRUE);
	gtk_widget_show (annot_dialog->opacity);

	hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);

	label = gtk_label_new (NULL);
	markup = g_strdup_printf ("<small>%s</small>", _("Transparent"));
	gtk_label_set_markup (GTK_LABEL (label), markup);
	g_free (markup);
	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
	gtk_widget_show (label);

	label = gtk_label_new (NULL);
	markup = g_strdup_printf ("<small>%s</small>", _("Opaque"));
	gtk_label_set_markup (GTK_LABEL (label), markup);
	g_free (markup);
	gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, FALSE, 0);
	gtk_widget_show (label);

	gtk_grid_attach (GTK_GRID (grid), hbox, 1, 3, 1, 1);
        gtk_widget_set_hexpand (hbox, TRUE);
	gtk_widget_show (hbox);

	label = gtk_label_new (_("Initial window state:"));
	gtk_misc_set_alignment (GTK_MISC (label), 0., 0.5);
	gtk_grid_attach (GTK_GRID (grid), label, 0, 4, 1, 1);
	gtk_widget_show (label);

	annot_dialog->popup_state = gtk_combo_box_text_new ();
	gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (annot_dialog->popup_state), _("Open"));
	gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (annot_dialog->popup_state), _("Close"));
	gtk_combo_box_set_active (GTK_COMBO_BOX (annot_dialog->popup_state), 1);
	gtk_grid_attach (GTK_GRID (grid), annot_dialog->popup_state, 1, 4, 1, 1);
        gtk_widget_set_hexpand (annot_dialog->popup_state, TRUE);
	gtk_widget_show (annot_dialog->popup_state);
}

static void
ev_annotation_properties_dialog_class_init (EvAnnotationPropertiesDialogClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	object_class->dispose = ev_annotation_properties_dialog_dispose;
	object_class->constructed = ev_annotation_properties_dialog_constructed;
	object_class->set_property = ev_annotation_properties_dialog_set_property;

	g_object_class_install_property (object_class,
					 PROP_ANNOT_TYPE,
					 g_param_spec_enum ("annot-type",
							    "AnnotType",
							    "The type of annotation",
							    EV_TYPE_ANNOTATION_TYPE,
							    EV_ANNOTATION_TYPE_TEXT,
							    G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
                                                            G_PARAM_STATIC_STRINGS));
}

GtkWidget *
ev_annotation_properties_dialog_new (EvAnnotationType annot_type)
{
	return GTK_WIDGET (g_object_new (EV_TYPE_ANNOTATION_PROPERTIES_DIALOG,
					 "annot-type", annot_type,
					 NULL));
}

GtkWidget *
ev_annotation_properties_dialog_new_with_annotation (EvAnnotation *annot)
{
	EvAnnotationPropertiesDialog *dialog;
	const gchar                  *label;
	gdouble                       opacity;
	gboolean                      is_open;
	GdkRGBA                       rgba;

	dialog = (EvAnnotationPropertiesDialog *)ev_annotation_properties_dialog_new (ev_annotation_get_annotation_type (annot));
	dialog->annot = g_object_ref (annot);

	label = ev_annotation_markup_get_label (EV_ANNOTATION_MARKUP (annot));
	if (label)
		gtk_entry_set_text (GTK_ENTRY (dialog->author), label);

	ev_annotation_get_rgba (annot, &rgba);
	gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (dialog->color), &rgba);

	opacity = ev_annotation_markup_get_opacity (EV_ANNOTATION_MARKUP (annot));
	gtk_range_set_value (GTK_RANGE (dialog->opacity), opacity * 100);

	is_open = ev_annotation_markup_get_popup_is_open (EV_ANNOTATION_MARKUP (annot));
	gtk_combo_box_set_active (GTK_COMBO_BOX (dialog->popup_state),
				  is_open ? 0 : 1);

	if (EV_IS_ANNOTATION_TEXT (annot)) {
		EvAnnotationText *annot_text = EV_ANNOTATION_TEXT (annot);

		gtk_combo_box_set_active (GTK_COMBO_BOX (dialog->icon),
					  ev_annotation_text_get_icon (annot_text));
	}

	return GTK_WIDGET (dialog);
}

const gchar *
ev_annotation_properties_dialog_get_author (EvAnnotationPropertiesDialog *dialog)
{
	return gtk_entry_get_text (GTK_ENTRY (dialog->author));
}

void
ev_annotation_properties_dialog_get_rgba (EvAnnotationPropertiesDialog *dialog,
					  GdkRGBA                      *rgba)
{
	gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (dialog->color), rgba);
}

gdouble
ev_annotation_properties_dialog_get_opacity (EvAnnotationPropertiesDialog *dialog)
{
	return gtk_range_get_value (GTK_RANGE (dialog->opacity)) / 100;
}

gboolean
ev_annotation_properties_dialog_get_popup_is_open (EvAnnotationPropertiesDialog *dialog)
{
	return gtk_combo_box_get_active (GTK_COMBO_BOX (dialog->popup_state)) == 0;
}

EvAnnotationTextIcon
ev_annotation_properties_dialog_get_text_icon (EvAnnotationPropertiesDialog *dialog)
{
	return gtk_combo_box_get_active (GTK_COMBO_BOX (dialog->icon));
}
