weather-summary.c 27.9 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);


#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);

#define APPEND_TEXT_ITEM(text, item)                            \
    rawvalue = get_data(conditions, data->unit_system, item);   \
    unit = get_unit(data->unit_system, item);                   \
    value = g_strdup_printf("\t%s%s%s%s%s\n",                   \
                            text, text ? ": " : "",             \
                            rawvalue,                           \
                            strcmp(unit, "°") ? " " : "",       \
                            unit);                              \
    g_free(rawvalue);                                           \
    APPEND_TEXT_ITEM_REAL(value);

#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",                        \
                     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)
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{
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    const gchar *url;
    gchar *str;
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    if (event->type == GDK_BUTTON_RELEASE) {
        url = g_object_get_data(G_OBJECT(tag), "url");
        str = g_strdup_printf("exo-open --launch WebBrowser %s", url);
        g_spawn_command_line_async(str, NULL);
        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);
    return FALSE;
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}

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

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static GdkCursor *hand_cursor = NULL;
static GdkCursor *text_cursor = NULL;
static gboolean on_icon = FALSE;
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static gboolean
view_motion_notify(GtkWidget *widget,
                   GdkEventMotion *event,
                   GtkWidget *view)
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{
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    if (event->x != -1 && event->y != -1) {
        gint bx, by;
        GtkTextIter iter;
        GSList *tags;
        GSList *cur;

        gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(view),
                                              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;
            }
        }
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    }
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    if (!on_icon)
        gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(view),
                                                       GTK_TEXT_WINDOW_TEXT),
                              text_cursor);
    return FALSE;
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}

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

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

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static GtkWidget *weather_channel_evt = NULL;
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static void
view_scrolled_cb(GtkAdjustment *adj,
                 GtkWidget *view)
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{
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    if (weather_channel_evt) {
        gint x, y, x1, y1;
        x1 = view->allocation.width - 191 - 15;
        y1 = view->requisition.height - 60 - 15;
        gtk_text_view_buffer_to_window_coords(GTK_TEXT_VIEW(view),
                                              GTK_TEXT_WINDOW_TEXT,
                                              x1, y1, &x, &y);
        gtk_text_view_move_child(GTK_TEXT_VIEW(view),
                                 weather_channel_evt, x, y);
    }
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}

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static void
view_size_allocate_cb(GtkWidget *widget,
                      GtkAllocation *allocation,
                      gpointer data)
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{
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    view_scrolled_cb(NULL, GTK_WIDGET(data));
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}
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static gchar *
get_logo_path(void)
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{
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    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);
    g_free(dir);
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    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.gif", NULL);
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}

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static void
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logo_fetched (gboolean succeed,
              gchar *result,
              size_t len,
              gpointer user_data)
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{
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    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);
        }
    }
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}

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static GtkWidget *
weather_summary_get_logo(xfceweather_data *data)
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{
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    GtkWidget *image = gtk_image_new();
    GdkPixbuf *pixbuf = NULL;
    gchar *path = get_logo_path();

    pixbuf = gdk_pixbuf_new_from_file(path, NULL);
    g_free(path);
    if (pixbuf == NULL)
        weather_http_receive_data("met.no", "/filestore/met.no-logo.gif",
                                  data->proxy_host, data->proxy_port,
                                  logo_fetched, image);
    else {
        gtk_image_set_from_pixbuf(GTK_IMAGE(image), pixbuf);
        g_object_unref(pixbuf);
    }

    return image;
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}
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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;
    GtkTextIter iter;
    GtkTextTag *btag, *ltag0, *ltag1;
    GtkWidget *view, *frame, *scrolled, *weather_channel_icon;
    GtkAdjustment *adj;
    GdkColor lnk_color;
    xml_time *conditions;
    const gchar *unit;
    struct tm *start_tm, *end_tm, *point_tm;
    gchar *value, *wind, *sun_val, *vis, *rawvalue;
    char interval_start[80], interval_end[80], point[80];

    view = gtk_text_view_new();
    gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
    gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(view), FALSE);
    gtk_container_set_border_width(GTK_CONTAINER(view), BORDER);
    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);

    gdk_color_parse("#0000ff", &lnk_color);
    ltag0 = gtk_text_buffer_create_tag(buffer, "lnk0",
                                       "foreground-gdk", &lnk_color, NULL);
    ltag1 = gtk_text_buffer_create_tag(buffer, "lnk1",
                                       "foreground-gdk", &lnk_color, NULL);

    /* head */
    value = g_strdup_printf(_("Weather report for: %s.\n\n"),
                            data->location_name);
    APPEND_BTEXT(value);
    g_free(value);

    conditions = get_current_conditions(data->weatherdata);
    APPEND_BTEXT(_("Coordinates\n"));
    APPEND_TEXT_ITEM(_("Altitude"), ALTITUDE);
    APPEND_TEXT_ITEM(_("Latitude"), LATITUDE);
    APPEND_TEXT_ITEM(_("Longitude"), LONGITUDE);

    APPEND_BTEXT(_("\nTime\n"));
    point_tm = localtime(&conditions->point);
    strftime(point, 80, "%c", point_tm);
    value = g_strdup_printf
        (_("\tTemperature, wind, atmosphere and cloud data apply to:\n\t%s\n"),
         point);
    APPEND_TEXT_ITEM_REAL(value);

    start_tm = localtime(&conditions->start);
    strftime(interval_start, 80, "%c", start_tm);
    end_tm = localtime(&conditions->end);
    strftime(interval_end, 80, "%c", end_tm);
    value = g_strdup_printf
        (_("\n\tPrecipitation and the weather symbol have been calculated\n\tfor the following time interval:\n\tStart:\t%s\n\tEnd:\t%s\n"),
         interval_start,
         interval_end);
    APPEND_TEXT_ITEM_REAL(value);

    /* temperature */
    APPEND_BTEXT(_("\nTemperature\n"));
    APPEND_TEXT_ITEM(_("Temperature"), TEMPERATURE);

    /* wind */
    APPEND_BTEXT(_("\nWind\n"));
    rawvalue = get_data(conditions, data->unit_system, WIND_SPEED);
    wind = translate_wind_speed(conditions, rawvalue, data->unit_system);
    g_free(rawvalue);
    rawvalue = get_data(conditions, data->unit_system, WIND_BEAUFORT);
    value = g_strdup_printf(_("\t%s: %s (%s on the Beaufort scale)\n"),
                            _("Speed"), wind, rawvalue);
    g_free(rawvalue);
    g_free(wind);
    APPEND_TEXT_ITEM_REAL(value);

    rawvalue = get_data(conditions, data->unit_system, WIND_DIRECTION);
    wind = translate_wind_direction(rawvalue);
    g_free(rawvalue);
    rawvalue = get_data(conditions, data->unit_system, WIND_DIRECTION_DEG);
    value = g_strdup_printf("\t%s: %s (%s%s)\n", _("Direction"),
                            wind, rawvalue,
                            get_unit(data->unit_system, WIND_DIRECTION_DEG));
    g_free(rawvalue);
    g_free(wind);
    APPEND_TEXT_ITEM_REAL(value);

    /* precipitation */
    APPEND_BTEXT(_("\nPrecipitations\n"));
    APPEND_TEXT_ITEM(_("Precipitations amount"), PRECIPITATIONS);

    /* atmosphere */
    APPEND_BTEXT(_("\nAtmosphere\n"));
    APPEND_TEXT_ITEM(_("Pressure"), PRESSURE);
    APPEND_TEXT_ITEM(_("Humidity"), HUMIDITY);

    /* clouds */
    APPEND_BTEXT(_("\nClouds\n"));
    APPEND_TEXT_ITEM(_("Fog"), FOG);
    APPEND_TEXT_ITEM(_("Low clouds"), CLOUDS_LOW);
    APPEND_TEXT_ITEM(_("Medium clouds"), CLOUDS_MED);
    APPEND_TEXT_ITEM(_("High clouds"), CLOUDS_HIGH);
    APPEND_TEXT_ITEM(_("Cloudiness"), CLOUDINESS);

    APPEND_BTEXT(_("\nData from The Norwegian Meteorological Institute\n"));
    value = g_strdup("http://met.no");
    g_object_set_data_full(G_OBJECT(ltag0), "url", value, g_free);
    APPEND_LINK_ITEM("\t", _("Thanks to met.no"), "http://met.no/", ltag1);

    g_signal_connect(G_OBJECT(view), "motion-notify-event",
                     G_CALLBACK(view_motion_notify), view);
    g_signal_connect(G_OBJECT(view), "leave-notify-event",
                     G_CALLBACK(view_leave_notify), view);

    weather_channel_icon = weather_summary_get_logo(data);

    if (weather_channel_icon) {
        weather_channel_evt = gtk_event_box_new();
        gtk_container_add(GTK_CONTAINER(weather_channel_evt),
                          weather_channel_icon);
        gtk_text_view_add_child_in_window(GTK_TEXT_VIEW(view),
                                          weather_channel_evt,
                                          GTK_TEXT_WINDOW_TEXT, 0, 0);
        gtk_widget_show_all(weather_channel_evt);
        adj =
            gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(scrolled));
        g_signal_connect(G_OBJECT(adj), "value-changed",
                         G_CALLBACK(view_scrolled_cb), view);
        g_signal_connect(G_OBJECT(view), "size_allocate",
                         G_CALLBACK(view_size_allocate_cb),
                         view);
        g_signal_connect(G_OBJECT(weather_channel_evt), "button-release-event",
                         G_CALLBACK(icon_clicked),
                         ltag0);
        g_signal_connect(G_OBJECT(weather_channel_evt), "enter-notify-event",
                         G_CALLBACK(icon_motion_notify), view);
        g_signal_connect(G_OBJECT(weather_channel_evt), "visibility-notify-event",
                         G_CALLBACK(icon_motion_notify), view);
        g_signal_connect(G_OBJECT(weather_channel_evt), "motion-notify-event",
                         G_CALLBACK(icon_motion_notify), view);
        g_signal_connect(G_OBJECT(weather_channel_evt), "leave-notify-event",
                         G_CALLBACK(view_leave_notify), view);
    }
    if (hand_cursor == NULL)
        hand_cursor = gdk_cursor_new(GDK_HAND2);
    if (text_cursor == NULL)
        text_cursor = gdk_cursor_new(GDK_XTERM);

    return frame;
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}
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GtkWidget *
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add_forecast_cell(GtkWidget *widget,
                  GdkColor *color)
{
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    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_container_add(GTK_CONTAINER(ebox), GTK_WIDGET(widget));
    return ebox;
}

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

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    if (angle)
        align = gtk_alignment_new(1, 1, 0, 1);
    else
        align = gtk_alignment_new(1, 1, 1, 0);
    gtk_container_set_border_width(GTK_CONTAINER(align), 4);
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    label = gtk_label_new(NULL);
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    gtk_label_set_angle(GTK_LABEL(label), angle);
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    str = g_strdup_printf("<span foreground=\"white\"><b>%s</b></span>", text ? text : "");
    gtk_label_set_markup(GTK_LABEL(label), str);
    g_free(str);
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    gtk_container_add(GTK_CONTAINER(align), GTK_WIDGET(label));

    return add_forecast_cell(align, color);
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}

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static GtkWidget *
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make_forecast(xfceweather_data *data)
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{
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    GtkWidget *table, *ebox, *box, *align;
    GtkWidget *forecast_box, *label, *image;
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    GdkPixbuf *icon;
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    GdkColor black = {0, 0x0000, 0x0000, 0x0000};
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    GdkColor lightbg = {0, 0xeaea, 0xeaea, 0xeaea};
    GdkColor darkbg = {0, 0x6666, 0x6666, 0x6666};
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    gint i, weekday, daytime;
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    gchar *dayname, *wind_speed, *wind_direction, *value, *rawvalue;
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    xml_time *fcdata;
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    struct tm fcday_tm;
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    time_t now_t = time(NULL), fcday_t;
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    table = gtk_table_new(data->forecast_days + 1, 5, FALSE);
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    gtk_table_set_row_spacings(GTK_TABLE(table), 0);
    gtk_table_set_col_spacings(GTK_TABLE(table), 0);

    /* empty upper left corner */
    box = gtk_vbox_new(FALSE, 0);
    gtk_table_attach_defaults(GTK_TABLE(table),
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                              add_forecast_cell(box, &darkbg),
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                              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);

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

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        ebox = add_forecast_header(dayname, 90.0, &darkbg);
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        g_free(dayname);
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        gtk_table_attach_defaults(GTK_TABLE(table), GTK_WIDGET(ebox),
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                                  0, 1, i+1, i+2);

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        /* get forecast data for each daytime */
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        for (daytime = MORNING; daytime <= NIGHT; daytime++) {
            forecast_box = gtk_vbox_new(FALSE, 0);
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            align = gtk_alignment_new(0.5, 0.5, 1, 1);
            gtk_container_set_border_width(GTK_CONTAINER(align), 4);
            gtk_container_add(GTK_CONTAINER(align), GTK_WIDGET(forecast_box));
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            if (i % 2)
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                ebox = add_forecast_cell(align, NULL);
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            else
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                ebox = add_forecast_cell(align, &lightbg);
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            fcdata = make_forecast_data(data->weatherdata, i, daytime);
            if (fcdata != NULL) {
                if (fcdata->location != NULL) {
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                    rawvalue = get_data(fcdata, data->unit_system, SYMBOL);
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                    icon = get_icon(rawvalue, 48, (daytime == NIGHT));
                    g_free(rawvalue);
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                    image = gtk_image_new_from_pixbuf(icon);
                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(image),
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                                       TRUE, TRUE, 0);
                    if (G_LIKELY(icon))
                        g_object_unref(G_OBJECT(icon));
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                    rawvalue = get_data(fcdata, data->unit_system, SYMBOL);
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                    value = g_strdup_printf("%s",
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                                            translate_desc(rawvalue,
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                                                           (daytime == NIGHT)));
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                    g_free(rawvalue);
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                    label = gtk_label_new(NULL);
                    gtk_label_set_markup(GTK_LABEL(label), value);
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                    if (!(i % 2))
                        gtk_widget_modify_fg(GTK_WIDGET(label),
                                             GTK_STATE_NORMAL, &black);
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                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(label),
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                                       TRUE, TRUE, 0);
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                    g_free(value);

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                    rawvalue = get_data(fcdata, data->unit_system, TEMPERATURE);
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                    value = g_strdup_printf("%s %s",
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                                            rawvalue,
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                                            get_unit(data->unit_system,
                                                     TEMPERATURE));
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                    g_free(rawvalue);
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                    label = gtk_label_new(value);
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                    if (!(i % 2))
                        gtk_widget_modify_fg(GTK_WIDGET(label),
                                             GTK_STATE_NORMAL, &black);
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                    gtk_box_pack_start(GTK_BOX(forecast_box), GTK_WIDGET(label),
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                                       TRUE, TRUE, 0);
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                    g_free(value);

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                    rawvalue = get_data(fcdata, data->unit_system,
                                        WIND_DIRECTION);
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                    wind_direction = translate_wind_direction(rawvalue);
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                    wind_speed = get_data(fcdata, data->unit_system, WIND_SPEED);
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                    value = g_strdup_printf("%s %s %s",
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                                            wind_direction,
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                                            wind_speed,
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                                            get_unit(data->unit_system,
                                                     WIND_SPEED));
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                    g_free(wind_speed);
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                    g_free(wind_direction);
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                    g_free(rawvalue);
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                    label = gtk_label_new(value);
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                    if (!(i % 2))
                        gtk_widget_modify_fg(GTK_WIDGET(label),
                                             GTK_STATE_NORMAL, &black);
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                    gtk_box_pack_start(GTK_BOX(forecast_box), label,
                                       TRUE, TRUE, 0);
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                    g_free(value);
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                    gtk_widget_set_size_request(GTK_WIDGET(forecast_box),
                                                150, -1);
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                }
                xml_time_free(fcdata);
            }
            gtk_table_attach_defaults(GTK_TABLE(table),
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                                      GTK_WIDGET(ebox),
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                                      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,
                    GtkWidget *window)
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{
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    GtkWidget *ebox, *align, *hbox, *scrolled, *table;
    GdkWindow *win;
    GdkScreen *screen;
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    GdkRectangle rect;
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    gint monitor_num, height_needed, height_max;
    gdouble factor;
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    /* calculate maximum height we may use, subtracting some sane value for safety */
    screen = gtk_window_get_screen(GTK_WINDOW(window));
    win = GTK_WIDGET(window)->window;
    monitor_num = gdk_screen_get_monitor_at_window(GDK_SCREEN(screen), GDK_WINDOW(win));
    gdk_screen_get_monitor_geometry(GDK_SCREEN(screen), monitor_num, &rect);
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    /* optimize max height a bit depending on common resolutions */
    if ((rect.height > 600 && rect.height <= 800) || rect.height <= 480)
        factor = 0.85;
    else
        factor = 0.90;
    height_max = rect.height * factor - 200;
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    /* calculate height needed using a good arbitrary value */
    height_needed = data->forecast_days * 110;

    /* generate the forecast table */
    table = GTK_WIDGET(make_forecast(data));

    align = gtk_alignment_new(0.5, 0, 0.5, 0);
    if (height_needed < height_max) {
        gtk_container_add(GTK_CONTAINER(align), GTK_WIDGET(table));
        gtk_container_set_border_width(GTK_CONTAINER(align), BORDER);
        return align;
    } else {
        hbox = gtk_hbox_new(FALSE, 0);
        gtk_box_pack_start(GTK_BOX(hbox), table, TRUE, FALSE, 0);
        gtk_container_add(GTK_CONTAINER(align), GTK_WIDGET(hbox));

        scrolled = gtk_scrolled_window_new (NULL, NULL);
        gtk_container_set_border_width(GTK_CONTAINER(scrolled), BORDER);

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        gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled),
                                              align);
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        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
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                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);
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        if (rect.width <= 720)
            gtk_widget_set_size_request(GTK_WIDGET(scrolled), 650, height_max);
        else
            gtk_widget_set_size_request(GTK_WIDGET(scrolled), 700, height_max);
        ebox = gtk_event_box_new();
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        gtk_event_box_set_visible_window(GTK_EVENT_BOX(ebox), TRUE);
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        gtk_container_add(GTK_CONTAINER(ebox), GTK_WIDGET(scrolled));
        return ebox;
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    }
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}
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static void
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summary_dialog_response(GtkWidget *dlg,
                        gint response,
                        GtkWidget *window)
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{
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    if (response == GTK_RESPONSE_ACCEPT)
        gtk_widget_destroy(window);
    else if (response == GTK_RESPONSE_HELP)
        g_spawn_command_line_async ("exo-open --launch WebBrowser " PLUGIN_WEBSITE, NULL);
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}

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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;
    gchar *title, *rawvalue;
    GdkPixbuf *icon;
    xml_time *conditions;

    window = xfce_titled_dialog_new_with_buttons(_("Weather Update"),
                                                 NULL,
                                                 GTK_DIALOG_NO_SEPARATOR,
                                                 GTK_STOCK_ABOUT,
                                                 GTK_RESPONSE_HELP,
                                                 GTK_STOCK_CLOSE,
                                                 GTK_RESPONSE_ACCEPT, NULL);
    if (data->location_name != NULL) {
        title = g_strdup_printf(_("Weather report for: %s"),
                                data->location_name);
        xfce_titled_dialog_set_subtitle(XFCE_TITLED_DIALOG(window), title);
        g_free(title);
    }

    vbox = gtk_vbox_new(FALSE, 0);
    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox), vbox, TRUE, TRUE,
                       0);

    conditions = get_current_conditions(data->weatherdata);

    rawvalue = get_data(conditions, data->unit_system, SYMBOL);
    icon = get_icon(rawvalue, 48, is_night_time());
    g_free(rawvalue);

    gtk_window_set_icon(GTK_WINDOW(window), icon);

    if (G_LIKELY(icon))
        g_object_unref(G_OBJECT(icon));

    if (data->location_name == NULL || data->weatherdata == NULL) {
        hbox = gtk_hbox_new(FALSE, 0);
        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_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);
        gtk_window_set_default_size(GTK_WINDOW(window), 500, 400);
    } 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, window),
                                 gtk_label_new_with_mnemonic(_("_Forecast")));
        gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
                                 create_summary_tab(data),
                                 gtk_label_new_with_mnemonic(_("_Details")));

        gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
    }

    g_signal_connect(G_OBJECT(window), "response",
                     G_CALLBACK(summary_dialog_response), window);

    return window;
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}