weather-summary.c 20.8 KB
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/*  Copyright (c) 2003-2007 Xfce Development Team
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 *
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 *  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
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 *  (at your option) any later version.
 *
 *  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
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 *  GNU Library General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif

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#include <libxfce4ui/libxfce4ui.h>
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#include "weather-parsers.h"
#include "weather-data.h"
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#include "weather-http.h"
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#include "weather.h"
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#include "weather-summary.h"
#include "weather-translate.h"
#include "weather-icon.h"
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static gboolean lnk_clicked (GtkTextTag *tag, GObject *obj,
			     GdkEvent *event, GtkTextIter *iter,
			     GtkWidget *textview);
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#define BORDER                           8
#define APPEND_BTEXT(text)               gtk_text_buffer_insert_with_tags(GTK_TEXT_BUFFER(buffer),\
                                                                          &iter, text, -1, btag, NULL);
#define APPEND_TEXT_ITEM_REAL(text)      gtk_text_buffer_insert(GTK_TEXT_BUFFER(buffer), \
                                                                &iter, text, -1);\
                                         g_free (value);
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#define APPEND_TEXT_ITEM(text, item)     value = g_strdup_printf("\t%s%s%s %s\n",\
                                                                 text, text?": ":"", \
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                                                                 get_data(timeslice, item), \
                                                                 get_unit(timeslice, data->unit, item)); \
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                                         APPEND_TEXT_ITEM_REAL(value);
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#define APPEND_LINK_ITEM(prefix, text, url, lnk_tag) \
					 gtk_text_buffer_insert(GTK_TEXT_BUFFER(buffer), \
                                                                &iter, prefix, -1);\
					 gtk_text_buffer_insert_with_tags(GTK_TEXT_BUFFER(buffer), \
                                                                &iter, text, -1, lnk_tag, NULL);\
					 gtk_text_buffer_insert(GTK_TEXT_BUFFER(buffer), \
                                                                &iter, "\n", -1);\
					 g_object_set_data_full(G_OBJECT(lnk_tag), "url", g_strdup(url), g_free); \
					 g_signal_connect(G_OBJECT(lnk_tag), "event", \
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						G_CALLBACK(lnk_clicked), NULL);
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static GtkTooltips *tooltips = NULL;

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static gboolean lnk_clicked (GtkTextTag *tag, GObject *obj,
			     GdkEvent *event, GtkTextIter *iter,
			     GtkWidget *textview)
{
  if (event->type == GDK_BUTTON_RELEASE) {
    const gchar *url = g_object_get_data(G_OBJECT(tag), "url");
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    gchar *str = g_strdup_printf("exo-open --launch WebBrowser %s", url);
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    g_spawn_command_line_async(str, NULL);
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    g_free(str);
  } else if (event->type == GDK_LEAVE_NOTIFY) {
     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(obj),
				GTK_TEXT_WINDOW_TEXT), NULL);
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  }
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  return FALSE;
}

static gboolean
icon_clicked (GtkWidget      *widget,
              GdkEventButton *event,
              gpointer        user_data)
{
  return lnk_clicked(user_data, NULL, (GdkEvent *)(event), NULL, NULL);
}

static GdkCursor *hand_cursor = NULL;
static GdkCursor *text_cursor = NULL;
static gboolean on_icon = FALSE;
static gboolean view_motion_notify(GtkWidget *widget,
				   GdkEventMotion *event,
				   GtkWidget *view)
{
  GtkTextBuffer *buffer;

  buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));

  if (event->x != -1 && event->y != -1) {
    gint bx, by;
    GtkTextIter iter;
    GSList *tags;
    GSList *cur;

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    gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(view),
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    						GTK_TEXT_WINDOW_WIDGET,
    						event->x, event->y, &bx, &by);
    gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(view),
    						&iter, bx, by);
    tags = gtk_text_iter_get_tags(&iter);
    for (cur = tags; cur != NULL; cur = cur->next) {
      GtkTextTag *tag = cur->data;
      if (g_object_get_data(G_OBJECT(tag), "url")) {
        gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(view),
				   GTK_TEXT_WINDOW_TEXT), hand_cursor);
        return FALSE;
      }
    }
  }
  if (!on_icon)
    gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(view),
			     GTK_TEXT_WINDOW_TEXT), text_cursor);
  return FALSE;
}

static gboolean icon_motion_notify(GtkWidget *widget,
				   GdkEventMotion *event,
				   GtkWidget *view)
{
  on_icon = TRUE;
  gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(view),
			     GTK_TEXT_WINDOW_TEXT), hand_cursor);
  return FALSE;
}

static gboolean view_leave_notify(GtkWidget *widget,
				   GdkEventMotion *event,
				   GtkWidget *view)
{
  on_icon = FALSE;
  gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(view),
			     GTK_TEXT_WINDOW_TEXT), text_cursor);
  return FALSE;
}

static GtkWidget *weather_channel_evt = NULL;
static void view_scrolled_cb (GtkAdjustment *adj, GtkWidget *view)
{
  if (weather_channel_evt) {
    gint x, y, x1, y1;
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    x1 = view->allocation.width - 73 - 5;
    y1 = view->requisition.height - 55 - 5;
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    gtk_text_view_buffer_to_window_coords(
			GTK_TEXT_VIEW(view),
			GTK_TEXT_WINDOW_TEXT, x1, y1, &x, &y);
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    gtk_text_view_move_child(GTK_TEXT_VIEW(view),
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			weather_channel_evt, x, y);
  }
}

static void view_size_allocate_cb	(GtkWidget	*widget,
					 GtkAllocation	*allocation,
					 gpointer	 data)
{
  view_scrolled_cb(NULL, GTK_WIDGET(data));
}
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static gchar *get_logo_path (void)
{
	gchar *dir = g_strconcat(g_get_user_cache_dir(), G_DIR_SEPARATOR_S,
				"xfce4", G_DIR_SEPARATOR_S, "weather-plugin", NULL);

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	g_mkdir_with_parents(dir, 0755);
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	g_free(dir);

	return g_strconcat(g_get_user_cache_dir(), G_DIR_SEPARATOR_S,
				"xfce4", G_DIR_SEPARATOR_S, "weather-plugin",
				G_DIR_SEPARATOR_S, "weather_logo.jpg", NULL);
}

static void
logo_fetched (gboolean  succeed,
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           gchar     *result,
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	   size_t    len,
           gpointer  user_data)
{
	if (succeed && result) {
		gchar *path = get_logo_path();
		GError *error = NULL;
		GdkPixbuf *pixbuf = NULL;
		if (!g_file_set_contents(path, result, len, &error)) {
			printf("err %s\n", error?error->message:"?");
			g_error_free(error);
			g_free(result);
			g_free(path);
			return;
		}
		g_free(result);
		pixbuf = gdk_pixbuf_new_from_file(path, NULL);
		g_free(path);
		if (pixbuf) {
			gtk_image_set_from_pixbuf(GTK_IMAGE(user_data), pixbuf);
			g_object_unref(pixbuf);
		}
	}
}

static GtkWidget *weather_summary_get_logo(xfceweather_data *data)
{
	GtkWidget *image = gtk_image_new();
	GdkPixbuf *pixbuf = NULL;
	gchar *path = get_logo_path();
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	pixbuf = gdk_pixbuf_new_from_file(path, NULL);
	g_free(path);
	if (pixbuf == NULL) {
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		weather_http_receive_data ("xoap.weather.com", "/web/common/twc/logos/web_73x55.jpg",
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			data->proxy_host, data->proxy_port, logo_fetched, image);
	} else {
		gtk_image_set_from_pixbuf(GTK_IMAGE(image), pixbuf);
		g_object_unref(pixbuf);
	}
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	return image;
}
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static GtkWidget *
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create_summary_tab (xfceweather_data *data)
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{
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  GtkTextBuffer *buffer;
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  GtkTextIter    iter;
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  GtkTextTag    *btag, *ltag1;
  gchar         *value, *wind, *sun_val, *vis;
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  GtkWidget     *view, *frame, *scrolled;
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  GdkColor       lnk_color;
  GtkAdjustment *adj;
  GtkWidget     *weather_channel_icon;
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  gchar         *start;
  xml_time      *timeslice;
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  view = gtk_text_view_new ();
  gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
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  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
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  gtk_container_set_border_width (GTK_CONTAINER (view), BORDER);
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  frame = gtk_frame_new (NULL);
  scrolled = gtk_scrolled_window_new (NULL, NULL);

  gtk_container_add (GTK_CONTAINER (scrolled), view);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
                                  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

  gtk_container_set_border_width (GTK_CONTAINER (frame), BORDER);
  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
  gtk_container_add (GTK_CONTAINER (frame), scrolled);

  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
  gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (buffer), &iter, 0);
  btag =
    gtk_text_buffer_create_tag (buffer, NULL, "weight", PANGO_WEIGHT_BOLD,
                                NULL);

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  gdk_color_parse("#0000ff", &lnk_color);
  ltag1 = gtk_text_buffer_create_tag(buffer, "lnk1", "foreground-gdk", &lnk_color, NULL);

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  /* head */
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  value = g_strdup_printf (_("Weather report for: %s.\n\n"), data->location_name);
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  APPEND_BTEXT (value);
  g_free (value);
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  timeslice = get_current_timeslice(data->weatherdata, FALSE);
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  APPEND_BTEXT(_("Coordinates and Time\n"));
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  value = g_strdup_printf (_("\tAltitude: %s %s\n"
                             "\tLatitude: %s%s\n"
                             "\tLongitude: %s%s\n\n"
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                             "\tData applies to time interval\n"
                             "\tfrom %s\tto %s"),
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                           get_data(timeslice, ALTITUDE),
                           get_unit(timeslice, data->unit, ALTITUDE),
                           get_data(timeslice, LATITUDE),
                           get_unit(timeslice, data->unit, LATITUDE),
                           get_data(timeslice, LONGITUDE),
                           get_unit(timeslice, data->unit, LONGITUDE),
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                           ctime(&timeslice->start),
                           ctime(&timeslice->end));
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  APPEND_TEXT_ITEM_REAL (value);

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  /* Temperature */
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  APPEND_BTEXT (_("\nTemperature\n"));
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  APPEND_TEXT_ITEM (_("Temperature"), TEMPERATURE);
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  /* Wind */
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  APPEND_BTEXT (_("\nWind\n"));
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  wind = translate_wind_speed (timeslice, get_data (timeslice, WIND_SPEED), data->unit);
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  value = g_strdup_printf (_("\t%s: %s (%s on the Beaufort scale)\n"), _("Speed"), wind,
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                           get_data (timeslice, WIND_BEAUFORT));
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  g_free (wind);
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  APPEND_TEXT_ITEM_REAL (value);
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  wind = translate_wind_direction (get_data (timeslice, WIND_DIRECTION));
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  value = g_strdup_printf ("\t%s: %s (%s%s)\n", _("Direction"),
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                           wind ? wind : get_data (timeslice, WIND_DIRECTION),
                           get_data (timeslice, WIND_DIRECTION_DEG),
                           get_unit (timeslice, data->unit, WIND_DIRECTION_DEG));
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  g_free (wind);
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  APPEND_TEXT_ITEM_REAL (value);
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  /* Atmosphere */
  APPEND_BTEXT (_("\nAtmosphere\n"));
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  APPEND_TEXT_ITEM (_("Pressure"), PRESSURE);
  APPEND_TEXT_ITEM (_("Humidity"), HUMIDITY);
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  /* Clouds */
  APPEND_BTEXT (_("\nClouds\n"));
  APPEND_TEXT_ITEM (_("Fog"), FOG);
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  APPEND_TEXT_ITEM (_("Low clouds"), CLOUDINESS_LOW);
  APPEND_TEXT_ITEM (_("Medium clouds"), CLOUDINESS_MED);
  APPEND_TEXT_ITEM (_("High clouds"), CLOUDINESS_HIGH);
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  APPEND_TEXT_ITEM (_("Cloudiness"), CLOUDINESS_OVERALL);
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  APPEND_BTEXT (_("\nData from The Norwegian Meteorological Institute\n"));
  APPEND_LINK_ITEM ("\t", "Thanks to met.no", "http://met.no/", ltag1);
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  g_signal_connect(G_OBJECT(view), "motion-notify-event",
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                   G_CALLBACK(view_motion_notify), view);
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  g_signal_connect(G_OBJECT(view), "leave-notify-event",
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                   G_CALLBACK(view_leave_notify), view);
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  if (hand_cursor == NULL)
    hand_cursor = gdk_cursor_new(GDK_HAND2);
  if (text_cursor == NULL)
    text_cursor = gdk_cursor_new(GDK_XTERM);
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  return frame;
}
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GtkWidget *
add_forecast_cell(GtkWidget *widget, GdkColor *color) {
    GtkWidget *ebox;
    ebox = gtk_event_box_new();
    if (color == NULL)
        gtk_event_box_set_visible_window(GTK_EVENT_BOX(ebox), FALSE);
    else {
        gtk_event_box_set_visible_window(GTK_EVENT_BOX(ebox), TRUE);
        gtk_widget_modify_bg(GTK_WIDGET(ebox), GTK_STATE_NORMAL, color);
    }
    gtk_widget_show(GTK_WIDGET(ebox));
    gtk_container_add(GTK_CONTAINER(ebox), GTK_WIDGET(widget));
    return ebox;
}

GtkWidget *
add_forecast_header(gchar *text, gdouble angle, GdkColor *color)
{
    gchar *str;
    GtkWidget *label, *box;

    box = gtk_vbox_new(FALSE, 0);
    gtk_container_set_border_width(GTK_CONTAINER(box), 4);
    gtk_widget_show(GTK_WIDGET(box));

    label = gtk_label_new(NULL);
    gtk_label_set_angle(label, angle);
    gtk_widget_show(label);
    str = g_strdup_printf("<span foreground=\"white\"><b>%s</b></span>", text ? text : "");
    gtk_label_set_markup(GTK_LABEL(label), str);
    g_free(str);
    gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(label),
                       TRUE, FALSE, 2);
    return add_forecast_cell(box, color);
}

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static GtkWidget *
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make_forecast (xfceweather_data *data,
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               units     unit)
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{
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    GtkWidget *ebox, *table, *scrolled, *day_label;
    GtkWidget *forecast_box, *box, *label, *image;
    GdkPixbuf *icon;
    GdkColor lightbg = {0, 0xeaea, 0xeaea, 0xeaea};
    GdkColor darkbg = {0, 0x6666, 0x6666, 0x6666};
    gint num_days = 5, i, weekday, daytime;
    gchar *dayname, *value;
    xml_time *fcdata;
    time_t now_t = time(NULL), fcday_t;
    struct tm tm_fcday;

    table = gtk_table_new(num_days + 1, 5, FALSE);
    gtk_table_set_row_spacings(GTK_TABLE(table), 0);
    gtk_table_set_col_spacings(GTK_TABLE(table), 0);
    gtk_widget_show(GTK_WIDGET(table));

    /* empty upper left corner */
    box = gtk_vbox_new(FALSE, 0);
    gtk_widget_show(GTK_WIDGET(box));
    gtk_table_attach_defaults(GTK_TABLE(table),
                              add_forecast_cell(box, NULL),
                              0, 1, 0, 1);

    /* daytime headers */
    gtk_table_attach_defaults(GTK_TABLE(table),
                              add_forecast_header(_("Morning"), 0.0, &darkbg),
                              1, 2, 0, 1);
    gtk_table_attach_defaults(GTK_TABLE(table),
                              add_forecast_header(_("Afternoon"), 0.0, &darkbg),
                              2, 3, 0, 1);
    gtk_table_attach_defaults(GTK_TABLE(table),
                              add_forecast_header(_("Evening"), 0.0, &darkbg),
                              3, 4, 0, 1);
    gtk_table_attach_defaults(GTK_TABLE(table),
                              add_forecast_header(_("Night"), 0.0, &darkbg),
                              4, 5, 0, 1);

    for (i = 0; i < num_days; i++) {
        /* Forecast day headers */
        tm_fcday = *localtime(&now_t);
        fcday_t = time_calc_day(tm_fcday, i);
        weekday = localtime(&fcday_t)->tm_wday;
        if (i == 0)
            dayname = _("Today");
        else if (i == 1)
            dayname = _("Tomorrow");
        else
            dayname = translate_day(weekday);

        if (i % 2)
            box = add_forecast_header(dayname, 90.0, &darkbg);
        else
            box = add_forecast_header(dayname, 90.0, &darkbg);

        gtk_table_attach_defaults(GTK_TABLE(table), GTK_WIDGET(box),
                                  0, 1, i+1, i+2);

        /* Get forecast data for each daytime */
        for (daytime = MORNING; daytime <= NIGHT; daytime++) {
            forecast_box = gtk_vbox_new(FALSE, 0);
            if (i % 2)
                box = add_forecast_cell(forecast_box, NULL);
            else
                box = add_forecast_cell(forecast_box, &lightbg);

            fcdata = make_forecast_data(data->weatherdata, i, daytime);
            if (fcdata != NULL) {
                if (fcdata->location != NULL) {
                    icon = get_icon(get_data(fcdata, SYMBOL), 48, (daytime == NIGHT));
                    image = gtk_image_new_from_pixbuf(icon);
                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(image),
                                        TRUE, TRUE, 0);
                    if (G_LIKELY (icon))
                        g_object_unref (G_OBJECT (icon));

                    value = g_strdup_printf(" %s ",
                                            translate_desc(get_data(fcdata, SYMBOL),
                                                           (daytime == NIGHT)));
                    label = gtk_label_new(NULL);
                    gtk_label_set_markup(GTK_LABEL(label), value);
                    gtk_widget_show(GTK_WIDGET(label));
                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(label),
                                        TRUE, TRUE, 0);
                    g_free(value);

                    value = g_strdup_printf(" %s %s ",
                                            get_data(fcdata, TEMPERATURE),
                                            get_unit(fcdata, data->unit, TEMPERATURE));
                    label = gtk_label_new(value);
                    gtk_widget_show(GTK_WIDGET(label));
                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(label),
                                        TRUE, TRUE, 0);
                    g_free(value);

                    value = g_strdup_printf(" %s %s %s ",
                                            translate_wind_direction(get_data(fcdata, WIND_DIRECTION)),
                                            get_data(fcdata, WIND_SPEED),
                                            get_unit(fcdata, data->unit, WIND_SPEED));
                    label = gtk_label_new(value);
                    gtk_widget_show(GTK_WIDGET(label));
                    gtk_box_pack_start(GTK_BOX(forecast_box), label, TRUE, TRUE, 0);
                    g_free(value);
                }
                xml_time_free(fcdata);
            }
            gtk_table_attach_defaults(GTK_TABLE(table),
                                      GTK_WIDGET(box),
                                      1+daytime, 2+daytime, i+1, i+2);
        }
    }
    return table;
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}

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static GtkWidget *
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create_forecast_tab (xfceweather_data *data)
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{
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  GtkWidget *box;
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  guint      i;
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  box = gtk_vbox_new (FALSE, 0);
  gtk_widget_show(box);
  gtk_container_set_border_width (GTK_CONTAINER (box), 6);
  if (data->weatherdata)
      gtk_box_pack_start (GTK_BOX (box),
                          make_forecast (data, data->unit),
                          FALSE, FALSE, 0);
  return box;
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}
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static void
summary_dialog_response (GtkWidget          *dlg,
                         gint                response,
                         GtkWidget          *window)
{
	if (response == GTK_RESPONSE_ACCEPT)
		gtk_widget_destroy(window);
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	else if (response == GTK_RESPONSE_HELP)
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		g_spawn_command_line_async ("exo-open --launch WebBrowser " PLUGIN_WEBSITE, NULL);
}

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GtkWidget *
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create_summary_window (xfceweather_data *data)
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{
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  GtkWidget *window, *notebook, *vbox, *hbox, *label;
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  gchar     *title;
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  GdkPixbuf *icon;
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  xml_time  *timeslice;
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  window = xfce_titled_dialog_new_with_buttons (_("Weather Update"),
                                                NULL,
                                                GTK_DIALOG_NO_SEPARATOR,
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                                                GTK_STOCK_ABOUT,
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						GTK_RESPONSE_HELP,
                                                GTK_STOCK_CLOSE,
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                                                GTK_RESPONSE_ACCEPT, NULL);
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  if (data->location_name_short != NULL) {
    title = g_strdup_printf (_("Weather report for: %s"), data->location_name_short);
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    xfce_titled_dialog_set_subtitle (XFCE_TITLED_DIALOG (window), title);
    g_free (title);
  }
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  vbox = gtk_vbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), vbox, TRUE, TRUE,
                      0);
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  timeslice = get_current_timeslice(data->weatherdata, TRUE);
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  icon = get_icon (get_data (timeslice, SYMBOL), 48, is_night_time());
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  gtk_window_set_icon (GTK_WINDOW (window), icon);
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  if (G_LIKELY (icon))
    g_object_unref (G_OBJECT (icon));
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  if (data->location_name == NULL || data->weatherdata == NULL) {
    hbox = gtk_hbox_new (FALSE, 0);
    gtk_widget_show(hbox);
    if (data->location_name == NULL)
      label = gtk_label_new(_("Please set a location in the plugin settings."));
    else
      label = gtk_label_new(_("Currently no data available."));
    gtk_widget_show(label);
    gtk_box_pack_start (GTK_BOX (hbox), GTK_WIDGET(label),
                        TRUE, TRUE, 0);

    gtk_box_pack_start (GTK_BOX (vbox), GTK_WIDGET(hbox),
                        TRUE, TRUE, 0);
  } else {
    notebook = gtk_notebook_new ();
    gtk_container_set_border_width (GTK_CONTAINER (notebook), BORDER);
    gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                              create_forecast_tab (data),
                              gtk_label_new (_("Forecast")));
    gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                              create_summary_tab (data),
                              gtk_label_new (_("Details")));

    gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
  }
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  g_signal_connect (G_OBJECT (window), "response",
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                    G_CALLBACK (summary_dialog_response), window);
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  gtk_window_set_default_size (GTK_WINDOW (window), 500, 400);
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  return window;
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}