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path: root/capplets/time-admin/src/time-map.c
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Diffstat (limited to 'capplets/time-admin/src/time-map.c')
-rw-r--r--capplets/time-admin/src/time-map.c638
1 files changed, 638 insertions, 0 deletions
diff --git a/capplets/time-admin/src/time-map.c b/capplets/time-admin/src/time-map.c
new file mode 100644
index 00000000..2d86660e
--- /dev/null
+++ b/capplets/time-admin/src/time-map.c
@@ -0,0 +1,638 @@
+/* time-admin
+* Copyright (C) 2018 zhuyaliang https://github.com/zhuyaliang/
+*
+* 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 3 of the License, or
+* (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
+* 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, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "time-map.h"
+#include <math.h>
+
+#define PIN_HOT_POINT_X 8
+#define PIN_HOT_POINT_Y 15
+
+typedef struct
+{
+ gdouble offset;
+ guchar red;
+ guchar green;
+ guchar blue;
+ guchar alpha;
+}TimezoneMapOffset;
+enum
+{
+ LOCATION_CHANGED,
+ LAST_SIGNAL
+};
+
+G_DEFINE_TYPE (TimezoneMap, timezone_map, GTK_TYPE_WIDGET)
+static guint signals[LAST_SIGNAL];
+static TimezoneMapOffset color_codes[] =
+{
+ {-11.0, 43, 0, 0, 255 },
+ {-10.0, 85, 0, 0, 255 },
+ {-9.5, 102, 255, 0, 255 },
+ {-9.0, 128, 0, 0, 255 },
+ {-8.0, 170, 0, 0, 255 },
+ {-7.0, 212, 0, 0, 255 },
+ {-6.0, 255, 0, 1, 255 }, // north
+ {-6.0, 255, 0, 0, 255 }, // south
+ {-5.0, 255, 42, 42, 255 },
+ {-4.5, 192, 255, 0, 255 },
+ {-4.0, 255, 85, 85, 255 },
+ {-3.5, 0, 255, 0, 255 },
+ {-3.0, 255, 128, 128, 255 },
+ {-2.0, 255, 170, 170, 255 },
+ {-1.0, 255, 213, 213, 255 },
+ {0.0, 43, 17, 0, 255 },
+ {1.0, 85, 34, 0, 255 },
+ {2.0, 128, 51, 0, 255 },
+ {3.0, 170, 68, 0, 255 },
+ {3.5, 0, 255, 102, 255 },
+ {4.0, 212, 85, 0, 255 },
+ {4.5, 0, 204, 255, 255 },
+ {5.0, 255, 102, 0, 255 },
+ {5.5, 0, 102, 255, 255 },
+ {5.75, 0, 238, 207, 247 },
+ {6.0, 255, 127, 42, 255 },
+ {6.5, 204, 0, 254, 254 },
+ {7.0, 255, 153, 85, 255 },
+ {8.0, 255, 179, 128, 255 },
+ {9.0, 255, 204, 170, 255 },
+ {9.5, 170, 0, 68, 250 },
+ {10.0, 255, 230, 213, 255 },
+ {10.5, 212, 124, 21, 250 },
+ {11.0, 212, 170, 0, 255 },
+ {11.5, 249, 25, 87, 253 },
+ {12.0, 255, 204, 0, 255 },
+ {12.75, 254, 74, 100, 248 },
+ {13.0, 255, 85, 153, 250 },
+ {-100, 0, 0, 0, 0 }
+};
+static void
+cc_timezone_map_dispose (GObject *object)
+{
+ TimezoneMap *self = TIMEZONEMAP (object);
+
+ g_clear_object (&self->orig_background);
+ g_clear_object (&self->orig_background_dim);
+ g_clear_object (&self->orig_color_map);
+ g_clear_object (&self->background);
+ g_clear_object (&self->pin);
+ g_clear_pointer (&self->bubble_text, g_free);
+
+ if (self->color_map)
+ {
+ g_clear_object (&self->color_map);
+
+ self->visible_map_pixels = NULL;
+ self->visible_map_rowstride = 0;
+ }
+
+ G_OBJECT_CLASS (timezone_map_parent_class)->dispose (object);
+}
+static void
+timezone_map_finalize (GObject *object)
+{
+ TimezoneMap *self = TIMEZONEMAP (object);
+
+ g_clear_pointer (&self->tzdb, TimeZoneDateBaseFree);
+
+ G_OBJECT_CLASS (timezone_map_parent_class)->finalize (object);
+}
+static void
+cc_timezone_map_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ TimezoneMap *map = TIMEZONEMAP (widget);
+ gint size;
+
+ size = gdk_pixbuf_get_width (map->orig_background);
+
+ if (minimum != NULL)
+ *minimum = size;
+ if (natural != NULL)
+ *natural = size;
+}
+
+static void
+cc_timezone_map_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ TimezoneMap *map = TIMEZONEMAP (widget);
+ gint size;
+
+ size = gdk_pixbuf_get_height (map->orig_background);
+
+ if (minimum != NULL)
+ *minimum = size;
+ if (natural != NULL)
+ *natural = size;
+}
+static void
+cc_timezone_map_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ TimezoneMap *map = TIMEZONEMAP (widget);
+ GdkPixbuf *pixbuf;
+
+ if (map->background)
+ g_object_unref (map->background);
+
+ if (!gtk_widget_is_sensitive (widget))
+ pixbuf = map->orig_background_dim;
+ else
+ pixbuf = map->orig_background;
+
+ map->background = gdk_pixbuf_scale_simple (pixbuf,
+ allocation->width,
+ allocation->height,
+ GDK_INTERP_BILINEAR);
+
+ if (map->color_map)
+ g_object_unref (map->color_map);
+
+ map->color_map = gdk_pixbuf_scale_simple (map->orig_color_map,
+ allocation->width,
+ allocation->height,
+ GDK_INTERP_BILINEAR);
+
+ map->visible_map_pixels = gdk_pixbuf_get_pixels (map->color_map);
+ map->visible_map_rowstride = gdk_pixbuf_get_rowstride (map->color_map);
+ GTK_WIDGET_CLASS (timezone_map_parent_class)->size_allocate (widget,
+ allocation);
+}
+
+static void
+cc_timezone_map_realize (GtkWidget *widget)
+{
+ GdkWindowAttr attr = { 0, };
+ GtkAllocation allocation;
+ GdkWindow *window;
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ gtk_widget_set_realized (widget, TRUE);
+
+ attr.window_type = GDK_WINDOW_CHILD;
+ attr.wclass = GDK_INPUT_OUTPUT;
+ attr.width = allocation.width;
+ attr.height = allocation.height;
+ attr.x = allocation.x;
+ attr.y = allocation.y;
+ attr.event_mask = gtk_widget_get_events (widget)
+ | GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
+
+ window = gdk_window_new (gtk_widget_get_parent_window (widget), &attr,
+ GDK_WA_X | GDK_WA_Y);
+
+ gdk_window_set_user_data (window, widget);
+ gtk_widget_set_window (widget, window);
+}
+static gdouble
+convert_longitude_to_x (gdouble longitude, gint map_width)
+{
+ const gdouble xdeg_offset = -6;
+ gdouble x;
+
+ x = (map_width * (180.0 + longitude) / 360.0)
+ + (map_width * xdeg_offset / 180.0);
+
+ return x;
+}
+
+static gdouble
+radians (gdouble degrees)
+{
+ return (degrees / 360.0) * G_PI * 2;
+}
+
+static gdouble
+convert_latitude_to_y (gdouble latitude, gdouble map_height)
+{
+ gdouble bottom_lat = -59;
+ gdouble top_lat = 81;
+ gdouble top_per, y, full_range, top_offset, map_range;
+
+ top_per = top_lat / 180.0;
+ y = 1.25 * log (tan (G_PI_4 + 0.4 * radians (latitude)));
+ full_range = 4.6068250867599998;
+ top_offset = full_range * top_per;
+ map_range = fabs (1.25 * log (tan (G_PI_4 + 0.4 * radians (bottom_lat))) - top_offset);
+ y = fabs (y - top_offset);
+ y = y / map_range;
+ y = y * map_height;
+ return y;
+}
+
+
+static void
+draw_text_bubble (cairo_t *cr,
+ GtkWidget *widget,
+ gdouble pointx,
+ gdouble pointy)
+{
+ static const double corner_radius = 9.0;
+ static const double margin_top = 12.0;
+ static const double margin_bottom = 12.0;
+ static const double margin_left = 24.0;
+ static const double margin_right = 24.0;
+
+ TimezoneMap *map = TIMEZONEMAP (widget);
+ GtkAllocation alloc;
+ PangoLayout *layout;
+ PangoRectangle text_rect;
+ double x;
+ double y;
+ double width;
+ double height;
+
+ if (!map->bubble_text)
+ return;
+
+ gtk_widget_get_allocation (widget, &alloc);
+ layout = gtk_widget_create_pango_layout (widget, NULL);
+ /* Layout the text */
+ pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
+ pango_layout_set_spacing (layout, 3);
+ pango_layout_set_markup (layout, map->bubble_text, -1);
+
+ pango_layout_get_pixel_extents (layout, NULL, &text_rect);
+
+ /* Calculate the bubble size based on the text layout size */
+ width = text_rect.width + margin_left + margin_right;
+ height = text_rect.height + margin_top + margin_bottom;
+
+ if (pointx < alloc.width / 2)
+ x = pointx + 25;
+ else
+ x = pointx - width - 25;
+
+ y = pointy - height / 2;
+
+ /* Make sure it fits in the visible area */
+ x = CLAMP (x, 0, alloc.width - width);
+ y = CLAMP (y, 0, alloc.height - height);
+
+ cairo_save (cr);
+ cairo_translate (cr, x, y);
+
+ /* Draw the bubble */
+ cairo_new_sub_path (cr);
+ cairo_arc (cr, width - corner_radius, corner_radius, corner_radius, radians (-90), radians (0));
+ cairo_arc (cr, width - corner_radius, height - corner_radius, corner_radius, radians (0), radians (90));
+ cairo_arc (cr, corner_radius, height - corner_radius, corner_radius, radians (90), radians (180));
+ cairo_arc (cr, corner_radius, corner_radius, corner_radius, radians (180), radians (270));
+ cairo_close_path (cr);
+
+ cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 0.7);
+ cairo_fill (cr);
+
+ /* And finally draw the text */
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_move_to (cr, margin_left, margin_top);
+ pango_cairo_show_layout (cr, layout);
+
+ g_object_unref (layout);
+ cairo_restore (cr);
+}
+
+static gboolean
+cc_timezone_map_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ TimezoneMap *map = TIMEZONEMAP (widget);
+ g_autoptr(GdkPixbuf) orig_hilight = NULL;
+ GtkAllocation alloc;
+ g_autofree gchar *file = NULL;
+ g_autoptr(GError) err = NULL;
+ gdouble pointx, pointy;
+ char buf[16];
+
+ gtk_widget_get_allocation (widget, &alloc);
+
+ /* paint background */
+ gdk_cairo_set_source_pixbuf (cr, map->background, 0, 0);
+ cairo_paint (cr);
+
+ /* paint hilight */
+ if (gtk_widget_is_sensitive (widget))
+ {
+ file = g_strdup_printf ("/usr/share/mate-time-admin/map/timezone_%s.png",
+ g_ascii_formatd (buf, sizeof (buf),
+ "%g", map->selected_offset));
+ }
+ else
+ {
+ file = g_strdup_printf ("/usr/share/mate-time-admin/map/timezone_%s_dim.png",
+ g_ascii_formatd (buf, sizeof (buf),
+ "%g", map->selected_offset));
+ }
+
+ orig_hilight = gdk_pixbuf_new_from_file (file, &err);
+
+ if (!orig_hilight)
+ {
+ g_warning ("Could not load hilight: %s",
+ (err) ? err->message : "Unknown Error");
+ }
+ else
+ {
+ g_autoptr(GdkPixbuf) hilight = NULL;
+
+ hilight = gdk_pixbuf_scale_simple (orig_hilight, alloc.width,
+ alloc.height, GDK_INTERP_BILINEAR);
+ gdk_cairo_set_source_pixbuf (cr, hilight, 0, 0);
+
+ cairo_paint (cr);
+ }
+
+ if (map->location)
+ {
+ pointx = convert_longitude_to_x (map->location->longitude, alloc.width);
+ pointy = convert_latitude_to_y (map->location->latitude, alloc.height);
+
+ pointx = CLAMP (floor (pointx), 0, alloc.width);
+ pointy = CLAMP (floor (pointy), 0, alloc.height);
+
+ draw_text_bubble (cr, widget, pointx, pointy);
+ if (map->pin)
+ {
+ gdk_cairo_set_source_pixbuf (cr, map->pin,
+ pointx - PIN_HOT_POINT_X,
+ pointy - PIN_HOT_POINT_Y);
+ cairo_paint (cr);
+ }
+ }
+
+ return TRUE;
+}
+static void
+update_cursor (GtkWidget *widget)
+{
+ GdkWindow *window;
+ g_autoptr(GdkCursor) cursor = NULL;
+
+ if (!gtk_widget_get_realized (widget))
+ return;
+
+ if (gtk_widget_is_sensitive (widget))
+ {
+ GdkDisplay *display;
+ display = gtk_widget_get_display (widget);
+ cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
+ }
+
+ window = gtk_widget_get_window (widget);
+ gdk_window_set_cursor (window, cursor);
+}
+
+static void
+cc_timezone_map_state_flags_changed (GtkWidget *widget,
+ GtkStateFlags prev_state)
+{
+ update_cursor (widget);
+
+ if (GTK_WIDGET_CLASS (timezone_map_parent_class)->state_flags_changed)
+ GTK_WIDGET_CLASS (timezone_map_parent_class)->state_flags_changed (widget, prev_state);
+}
+static gint sort_locations (TzLocation *a,
+ TzLocation *b)
+{
+ if (a->dist > b->dist)
+ return 1;
+
+ if (a->dist < b->dist)
+ return -1;
+
+ return 0;
+}
+
+static void
+set_location (TimezoneMap *map,
+ TzLocation *location)
+{
+ g_autoptr(TzInfo) info = NULL;
+
+ map->location = location;
+ info = tz_info_from_location (map->location);
+ map->selected_offset = tz_location_get_utc_offset (map->location)
+ / (60.0*60.0) +
+ ((info->daylight) ? -1.0 : 0.0);
+
+ g_signal_emit (map, signals[LOCATION_CHANGED], 0, map->location,NULL);
+}
+
+static gboolean
+button_press_event (TimezoneMap *map,
+ GdkEventButton *event)
+{
+ gint x, y;
+ guchar r, g, b, a;
+ guchar *pixels;
+ gint rowstride;
+ guint i;
+
+ const GPtrArray *array;
+ gint width, height;
+ GList *distances = NULL;
+ GtkAllocation alloc;
+
+ x = event->x;
+ y = event->y;
+
+
+ rowstride = map->visible_map_rowstride;
+ pixels = map->visible_map_pixels;
+
+ r = pixels[(rowstride * y + x * 4)];
+ g = pixels[(rowstride * y + x * 4) + 1];
+ b = pixels[(rowstride * y + x * 4) + 2];
+ a = pixels[(rowstride * y + x * 4) + 3];
+
+
+ for (i = 0; color_codes[i].offset != -100; i++)
+ {
+ if (color_codes[i].red == r && color_codes[i].green == g
+ && color_codes[i].blue == b && color_codes[i].alpha == a)
+ {
+ map->selected_offset = color_codes[i].offset;
+ }
+ }
+
+ gtk_widget_queue_draw (GTK_WIDGET (map));
+
+ /* work out the co-ordinates */
+
+ array = tz_get_locations (map->tzdb);
+
+ gtk_widget_get_allocation (GTK_WIDGET (map), &alloc);
+ width = alloc.width;
+ height = alloc.height;
+
+ for (i = 0; i < array->len; i++)
+ {
+ gdouble pointx, pointy, dx, dy;
+ TzLocation *loc = array->pdata[i];
+
+ pointx = convert_longitude_to_x (loc->longitude, width);
+ pointy = convert_latitude_to_y (loc->latitude, height);
+
+ dx = pointx - x;
+ dy = pointy - y;
+
+ loc->dist = dx * dx + dy * dy;
+ distances = g_list_prepend (distances, loc);
+
+ }
+ distances = g_list_sort (distances, (GCompareFunc) sort_locations);
+
+ set_location (map, (TzLocation*) distances->data);
+
+ g_list_free (distances);
+
+ return TRUE;
+}
+
+static void
+timezone_map_class_init (TimezoneMapClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ object_class->dispose = cc_timezone_map_dispose;
+ object_class->finalize = timezone_map_finalize;
+
+ widget_class->get_preferred_width = cc_timezone_map_get_preferred_width;
+ widget_class->get_preferred_height = cc_timezone_map_get_preferred_height;
+ widget_class->size_allocate = cc_timezone_map_size_allocate;
+ widget_class->realize = cc_timezone_map_realize;
+ widget_class->draw = cc_timezone_map_draw;
+ widget_class->state_flags_changed = cc_timezone_map_state_flags_changed;
+
+
+ signals[LOCATION_CHANGED] = g_signal_new ("location-changed",
+ TYPE_TIMEZONE_MAP,
+ G_SIGNAL_RUN_FIRST,
+ 0,
+ NULL,
+ NULL,
+ g_cclosure_marshal_VOID__POINTER,
+ G_TYPE_NONE, 1,
+ G_TYPE_POINTER);
+/*
+ signals[LOCATION_CHANGED] = g_signal_new ("location-changed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL,NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+*/
+}
+
+static void
+timezone_map_init (TimezoneMap *map)
+{
+ GError *err = NULL;
+
+ map->orig_background = gdk_pixbuf_new_from_file ("/usr/share/mate-time-admin/map/bg.png",&err);
+ if (!map->orig_background)
+ {
+ g_warning ("Could not load background image: %s",
+ (err) ? err->message : "Unknown error");
+ g_clear_error (&err);
+ }
+ map->orig_background_dim = gdk_pixbuf_new_from_file("/usr/share/mate-time-admin/map/bg_dim.png",&err);
+ if (!map->orig_background_dim)
+ {
+ g_warning ("Could not load background image: %s",
+ (err) ? err->message : "Unknown error");
+ g_clear_error (&err);
+ }
+
+ map->orig_color_map = gdk_pixbuf_new_from_file ("/usr/share/mate-time-admin/map/cc.png",&err);
+ if (!map->orig_color_map)
+ {
+ g_warning ("Could not load background image: %s",
+ (err) ? err->message : "Unknown error");
+ g_clear_error (&err);
+ }
+
+ map->pin = gdk_pixbuf_new_from_file ("/usr/share/mate-time-admin/map/pin.png",&err);
+ if (!map->pin)
+ {
+ g_warning ("Could not load pin icon: %s",
+ (err) ? err->message : "Unknown error");
+ g_clear_error (&err);
+ }
+
+ map->tzdb = tz_load_db ();
+
+ g_signal_connect_object (map,
+ "button-press-event",
+ G_CALLBACK (button_press_event),
+ map,
+ G_CONNECT_SWAPPED);
+}
+gboolean timezone_map_set_timezone (TimezoneMap *map,
+ const gchar *timezone)
+{
+ GPtrArray *locations;
+ guint i;
+ g_autofree gchar *real_tz = NULL;
+ gboolean ret;
+
+ real_tz = tz_info_get_clean_name (map->tzdb, timezone);
+
+ locations = tz_get_locations (map->tzdb);
+ ret = FALSE;
+
+ for (i = 0; i < locations->len; i++)
+ {
+ TzLocation *loc = locations->pdata[i];
+
+ if (!g_strcmp0 (loc->zone, real_tz ? real_tz : timezone))
+ {
+ set_location (map, loc);
+ ret = TRUE;
+ break;
+ }
+ }
+
+ if (ret)
+ gtk_widget_queue_draw (GTK_WIDGET (map));
+
+ return ret;
+}
+TzLocation *timezone_map_get_location (TimezoneMap *map)
+{
+ return map->location;
+}
+void timezone_map_set_bubble_text (TimezoneMap *map,
+ const gchar *text)
+{
+ g_free (map->bubble_text);
+ map->bubble_text = g_strdup (text);
+ gtk_widget_queue_draw (GTK_WIDGET (map));
+}
+
+TimezoneMap * timezone_map_new (void)
+{
+ return g_object_new (TYPE_TIMEZONE_MAP, NULL);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-16 02:36:45 +0000