1 /*
2 * EDayViewTimeItem - canvas item which displays the times down the left of
3 * the EDayView.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU Lesser General Public License as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 *
17 * Authors:
18 * Damon Chaplin <damon@ximian.com>
19 *
20 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
21 */
22
23 #include "evolution-config.h"
24
25 #include <string.h>
26 #include <gtk/gtk.h>
27 #include <glib/gi18n.h>
28
29 #include "e-day-view-time-item.h"
30 #include "calendar-config.h"
31
32 /* The spacing between items in the time column. GRID_X_PAD is the space down
33 * either side of the column, i.e. outside the main horizontal grid lines.
34 * HOUR_L_PAD & HOUR_R_PAD are the spaces on the left & right side of the
35 * big hour number (this is inside the horizontal grid lines).
36 * MIN_X_PAD is the spacing either side of the minute number. The smaller
37 * horizontal grid lines match with this.
38 * 60_MIN_X_PAD is the space either side of the HH:MM display used when
39 * we are displaying 60 mins per row (inside the main grid lines).
40 * LARGE_HOUR_Y_PAD is the offset of the large hour string from the top of the
41 * row.
42 * SMALL_FONT_Y_PAD is the offset of the small time/minute string from the top
43 * of the row. */
44 #define E_DVTMI_TIME_GRID_X_PAD 4
45 #define E_DVTMI_HOUR_L_PAD 4
46 #define E_DVTMI_HOUR_R_PAD 2
47 #define E_DVTMI_MIN_X_PAD 2
48 #define E_DVTMI_60_MIN_X_PAD 4
49 #define E_DVTMI_LARGE_HOUR_Y_PAD 1
50 #define E_DVTMI_SMALL_FONT_Y_PAD 1
51
52 #define E_DAY_VIEW_TIME_ITEM_GET_PRIVATE(obj) \
53 (G_TYPE_INSTANCE_GET_PRIVATE \
54 ((obj), E_TYPE_DAY_VIEW_TIME_ITEM, EDayViewTimeItemPrivate))
55
56 struct _EDayViewTimeItemPrivate {
57 /* The parent EDayView widget. */
58 EDayView *day_view;
59
60 /* The width of the time column. */
61 gint column_width;
62
63 /* TRUE if we are currently dragging the selection times. */
64 gboolean dragging_selection;
65
66 /* The second timezone if shown, or else NULL. */
67 ICalTimezone *second_zone;
68 };
69
70 static void e_day_view_time_item_update (GnomeCanvasItem *item,
71 const cairo_matrix_t *i2c,
72 gint flags);
73 static void e_day_view_time_item_draw (GnomeCanvasItem *item,
74 cairo_t *cr,
75 gint x,
76 gint y,
77 gint width,
78 gint height);
79 static GnomeCanvasItem *
80 e_day_view_time_item_point (GnomeCanvasItem *item,
81 gdouble x,
82 gdouble y,
83 gint cx,
84 gint cy);
85 static gint e_day_view_time_item_event (GnomeCanvasItem *item,
86 GdkEvent *event);
87 static void e_day_view_time_item_increment_time
88 (gint *hour,
89 gint *minute,
90 gint time_divisions);
91 static void e_day_view_time_item_show_popup_menu
92 (EDayViewTimeItem *time_item,
93 GdkEvent *event);
94 static void e_day_view_time_item_on_set_divisions
95 (GtkWidget *item,
96 EDayViewTimeItem *time_item);
97 static void e_day_view_time_item_on_button_press
98 (EDayViewTimeItem *time_item,
99 GdkEvent *event);
100 static void e_day_view_time_item_on_button_release
101 (EDayViewTimeItem *time_item,
102 GdkEvent *event);
103 static void e_day_view_time_item_on_motion_notify
104 (EDayViewTimeItem *time_item,
105 GdkEvent *event);
106 static gint e_day_view_time_item_convert_position_to_row
107 (EDayViewTimeItem *time_item,
108 gint y);
109
110 static void edvti_second_zone_changed_cb (GSettings *settings,
111 const gchar *key,
112 gpointer user_data);
113
114 enum {
115 PROP_0,
116 PROP_DAY_VIEW
117 };
118
G_DEFINE_TYPE(EDayViewTimeItem,e_day_view_time_item,GNOME_TYPE_CANVAS_ITEM)119 G_DEFINE_TYPE (
120 EDayViewTimeItem,
121 e_day_view_time_item,
122 GNOME_TYPE_CANVAS_ITEM)
123
124 static void
125 day_view_time_item_set_property (GObject *object,
126 guint property_id,
127 const GValue *value,
128 GParamSpec *pspec)
129 {
130 switch (property_id) {
131 case PROP_DAY_VIEW:
132 e_day_view_time_item_set_day_view (
133 E_DAY_VIEW_TIME_ITEM (object),
134 g_value_get_object (value));
135 return;
136 }
137
138 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
139 }
140
141 static void
day_view_time_item_get_property(GObject * object,guint property_id,GValue * value,GParamSpec * pspec)142 day_view_time_item_get_property (GObject *object,
143 guint property_id,
144 GValue *value,
145 GParamSpec *pspec)
146 {
147 switch (property_id) {
148 case PROP_DAY_VIEW:
149 g_value_set_object (
150 value, e_day_view_time_item_get_day_view (
151 E_DAY_VIEW_TIME_ITEM (object)));
152 return;
153 }
154
155 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
156 }
157
158 static void
day_view_time_item_dispose(GObject * object)159 day_view_time_item_dispose (GObject *object)
160 {
161 EDayViewTimeItemPrivate *priv;
162
163 priv = E_DAY_VIEW_TIME_ITEM_GET_PRIVATE (object);
164 g_clear_object (&priv->day_view);
165
166 /* Chain up to parent's dispose() method. */
167 G_OBJECT_CLASS (e_day_view_time_item_parent_class)->dispose (object);
168 }
169
170 static void
day_view_time_item_finalize(GObject * object)171 day_view_time_item_finalize (GObject *object)
172 {
173 EDayViewTimeItem *time_item;
174
175 time_item = E_DAY_VIEW_TIME_ITEM (object);
176
177 calendar_config_remove_notification (
178 (CalendarConfigChangedFunc)
179 edvti_second_zone_changed_cb, time_item);
180
181 /* Chain up to parent's dispose() method. */
182 G_OBJECT_CLASS (e_day_view_time_item_parent_class)->finalize (object);
183 }
184
185 static void
e_day_view_time_item_class_init(EDayViewTimeItemClass * class)186 e_day_view_time_item_class_init (EDayViewTimeItemClass *class)
187 {
188 GObjectClass *object_class;
189 GnomeCanvasItemClass *item_class;
190
191 g_type_class_add_private (class, sizeof (EDayViewTimeItemPrivate));
192
193 object_class = G_OBJECT_CLASS (class);
194 object_class->set_property = day_view_time_item_set_property;
195 object_class->get_property = day_view_time_item_get_property;
196 object_class->dispose = day_view_time_item_dispose;
197 object_class->finalize = day_view_time_item_finalize;
198
199 item_class = GNOME_CANVAS_ITEM_CLASS (class);
200 item_class->update = e_day_view_time_item_update;
201 item_class->draw = e_day_view_time_item_draw;
202 item_class->point = e_day_view_time_item_point;
203 item_class->event = e_day_view_time_item_event;
204
205 g_object_class_install_property (
206 object_class,
207 PROP_DAY_VIEW,
208 g_param_spec_object (
209 "day-view",
210 "Day View",
211 NULL,
212 E_TYPE_DAY_VIEW,
213 G_PARAM_READWRITE));
214 }
215
216 static void
e_day_view_time_item_init(EDayViewTimeItem * time_item)217 e_day_view_time_item_init (EDayViewTimeItem *time_item)
218 {
219 gchar *last;
220
221 time_item->priv = E_DAY_VIEW_TIME_ITEM_GET_PRIVATE (time_item);
222
223 last = calendar_config_get_day_second_zone ();
224
225 if (last) {
226 if (*last)
227 time_item->priv->second_zone =
228 i_cal_timezone_get_builtin_timezone (last);
229 g_free (last);
230 }
231
232 calendar_config_add_notification_day_second_zone (
233 (CalendarConfigChangedFunc) edvti_second_zone_changed_cb,
234 time_item);
235 }
236
237 static void
e_day_view_time_item_update(GnomeCanvasItem * item,const cairo_matrix_t * i2c,gint flags)238 e_day_view_time_item_update (GnomeCanvasItem *item,
239 const cairo_matrix_t *i2c,
240 gint flags)
241 {
242 if (GNOME_CANVAS_ITEM_CLASS (e_day_view_time_item_parent_class)->update)
243 (* GNOME_CANVAS_ITEM_CLASS (e_day_view_time_item_parent_class)->update) (item, i2c, flags);
244
245 /* The item covers the entire canvas area. */
246 item->x1 = 0;
247 item->y1 = 0;
248 item->x2 = INT_MAX;
249 item->y2 = INT_MAX;
250 }
251
252 /*
253 * DRAWING ROUTINES - functions to paint the canvas item.
254 */
255 static void
edvti_draw_zone(GnomeCanvasItem * canvas_item,cairo_t * cr,gint x,gint y,gint width,gint height,gint x_offset,ICalTimezone * use_zone)256 edvti_draw_zone (GnomeCanvasItem *canvas_item,
257 cairo_t *cr,
258 gint x,
259 gint y,
260 gint width,
261 gint height,
262 gint x_offset,
263 ICalTimezone *use_zone)
264 {
265 EDayView *day_view;
266 EDayViewTimeItem *time_item;
267 ECalendarView *cal_view;
268 ECalModel *model;
269 const gchar *suffix;
270 gchar buffer[64], *midnight_day = NULL, *midnight_month = NULL;
271 gint time_divisions;
272 gint hour, display_hour, minute, row;
273 gint row_y, start_y, large_hour_y_offset, small_font_y_offset;
274 gint long_line_x1, long_line_x2, short_line_x1;
275 gint large_hour_x2, minute_x2;
276 gint hour_width, minute_width, suffix_width;
277 gint max_suffix_width, max_minute_or_suffix_width;
278 PangoLayout *layout;
279 PangoAttrList *tnum;
280 PangoAttribute *attr;
281 PangoContext *context;
282 PangoFontMetrics *large_font_metrics, *small_font_metrics;
283 GtkWidget *widget;
284 GdkRGBA fg, dark;
285 GdkColor mb_color;
286
287 time_item = E_DAY_VIEW_TIME_ITEM (canvas_item);
288 day_view = e_day_view_time_item_get_day_view (time_item);
289 g_return_if_fail (day_view != NULL);
290
291 widget = GTK_WIDGET (day_view);
292 cal_view = E_CALENDAR_VIEW (day_view);
293 model = e_calendar_view_get_model (cal_view);
294 time_divisions = e_calendar_view_get_time_divisions (cal_view);
295
296 context = gtk_widget_get_pango_context (GTK_WIDGET (day_view));
297 small_font_metrics = pango_context_get_metrics (
298 context, NULL,
299 pango_context_get_language (context));
300 large_font_metrics = pango_context_get_metrics (
301 context, day_view->large_font_desc,
302 pango_context_get_language (context));
303
304 e_utils_get_theme_color (widget, "theme_fg_color,theme_text_color", E_UTILS_DEFAULT_THEME_FG_COLOR, &fg);
305 e_utils_get_theme_color (widget, "theme_base_color", E_UTILS_DEFAULT_THEME_BASE_COLOR, &dark);
306
307 tnum = pango_attr_list_new ();
308 attr = pango_attr_font_features_new ("tnum=1");
309 pango_attr_list_insert_before (tnum, attr);
310
311 /* The start and end of the long horizontal line between hours. */
312 long_line_x1 =
313 (use_zone ? 0 : E_DVTMI_TIME_GRID_X_PAD) - x + x_offset;
314 long_line_x2 =
315 time_item->priv->column_width -
316 E_DVTMI_TIME_GRID_X_PAD - x -
317 (use_zone ? E_DVTMI_TIME_GRID_X_PAD : 0) + x_offset;
318
319 if (time_divisions == 60) {
320 /* The right edge of the complete time string in 60-min
321 * divisions, e.g. "14:00" or "2 pm". */
322 minute_x2 = long_line_x2 - E_DVTMI_60_MIN_X_PAD;
323
324 /* These aren't used for 60-minute divisions, but we initialize
325 * them to keep gcc happy. */
326 short_line_x1 = 0;
327 large_hour_x2 = 0;
328 } else {
329 max_suffix_width = MAX (
330 day_view->am_string_width,
331 day_view->pm_string_width);
332
333 max_minute_or_suffix_width = MAX (
334 max_suffix_width,
335 day_view->max_minute_width);
336
337 /* The start of the short horizontal line between the periods
338 * within each hour. */
339 short_line_x1 = long_line_x2 - E_DVTMI_MIN_X_PAD * 2
340 - max_minute_or_suffix_width;
341
342 /* The right edge of the large hour string. */
343 large_hour_x2 = short_line_x1 - E_DVTMI_HOUR_R_PAD;
344
345 /* The right edge of the minute part of the time. */
346 minute_x2 = long_line_x2 - E_DVTMI_MIN_X_PAD;
347 }
348
349 /* Start with the first hour & minute shown in the EDayView. */
350 hour = day_view->first_hour_shown;
351 minute = day_view->first_minute_shown;
352
353 if (use_zone) {
354 /* shift time with a difference between
355 * local time and the other timezone */
356 ICalTimezone *cal_zone;
357 ICalTime *tt;
358 gint is_daylight = 0; /* Its value is ignored, but libical-glib 3.0.5 API requires it */
359 gint diff;
360 struct tm mn;
361
362 cal_zone = e_calendar_view_get_timezone (
363 E_CALENDAR_VIEW (day_view));
364 tt = i_cal_time_new_from_timet_with_zone (
365 day_view->day_starts[0], 0, cal_zone);
366
367 /* diff is number of minutes */
368 diff = (i_cal_timezone_get_utc_offset (use_zone, tt, &is_daylight) -
369 i_cal_timezone_get_utc_offset (cal_zone, tt, &is_daylight)) / 60;
370
371 g_clear_object (&tt);
372
373 tt = i_cal_time_new_from_timet_with_zone (day_view->day_starts[0], 0, cal_zone);
374 i_cal_time_set_is_date (tt, FALSE);
375 i_cal_time_set_timezone (tt, cal_zone);
376 i_cal_time_convert_to_zone_inplace (tt, use_zone);
377
378 if (diff != 0) {
379 /* shows the next midnight */
380 i_cal_time_adjust (tt, 1, 0, 0, 0);
381 }
382
383 mn = e_cal_util_icaltime_to_tm (tt);
384
385 g_clear_object (&tt);
386
387 /* up to two characters/numbers */
388 e_utf8_strftime (buffer, sizeof (buffer), "%d", &mn);
389 midnight_day = g_strdup (buffer);
390 /* up to three characters, abbreviated month name */
391 e_utf8_strftime (buffer, sizeof (buffer), "%b", &mn);
392 midnight_month = g_strdup (buffer);
393
394 minute += (diff % 60);
395 hour += (diff / 60) + (minute / 60);
396
397 minute = minute % 60;
398 if (minute < 0) {
399 hour--;
400 minute += 60;
401 }
402
403 hour = (hour + 48) % 24;
404 }
405
406 /* The offset of the large hour string from the top of the row. */
407 large_hour_y_offset = E_DVTMI_LARGE_HOUR_Y_PAD;
408
409 /* The offset of the small time/minute string from top of row. */
410 small_font_y_offset = E_DVTMI_SMALL_FONT_Y_PAD;
411
412 /* Calculate the minimum y position of the first row we need to draw.
413 * This is normally one row height above the 0 position, but if we
414 * are using the large font we may have to go back a bit further. */
415 start_y = 0 - MAX (day_view->row_height,
416 (pango_font_metrics_get_ascent (large_font_metrics) +
417 pango_font_metrics_get_descent (large_font_metrics)) / PANGO_SCALE +
418 E_DVTMI_LARGE_HOUR_Y_PAD);
419
420 /* Draw the Marcus Bains Line first, so it appears under other elements. */
421 if (e_day_view_marcus_bains_get_show_line (day_view)) {
422 ICalTime *time_now;
423 const gchar *marcus_bains_time_bar_color;
424 gint marcus_bains_y;
425
426 cairo_save (cr);
427 gdk_cairo_set_source_color (
428 cr, &day_view->colors[E_DAY_VIEW_COLOR_MARCUS_BAINS_LINE]);
429
430 marcus_bains_time_bar_color =
431 e_day_view_marcus_bains_get_time_bar_color (day_view);
432 if (marcus_bains_time_bar_color == NULL)
433 marcus_bains_time_bar_color = "";
434
435 if (gdk_color_parse (marcus_bains_time_bar_color, &mb_color)) {
436 gdk_cairo_set_source_color (cr, &mb_color);
437 } else {
438 mb_color = day_view->colors[E_DAY_VIEW_COLOR_MARCUS_BAINS_LINE];
439 }
440
441 time_now = i_cal_time_new_current_with_zone (
442 e_calendar_view_get_timezone (
443 E_CALENDAR_VIEW (day_view)));
444 marcus_bains_y =
445 (i_cal_time_get_hour (time_now) * 60 + i_cal_time_get_minute (time_now)) *
446 day_view->row_height / time_divisions - y;
447 cairo_set_line_width (cr, 1.5);
448 cairo_move_to (
449 cr, long_line_x1 -
450 (use_zone ? E_DVTMI_TIME_GRID_X_PAD : 0),
451 marcus_bains_y);
452 cairo_line_to (cr, long_line_x2, marcus_bains_y);
453 cairo_stroke (cr);
454 cairo_restore (cr);
455
456 g_clear_object (&time_now);
457 } else {
458 const gchar *marcus_bains_time_bar_color;
459
460 marcus_bains_time_bar_color =
461 e_day_view_marcus_bains_get_time_bar_color (day_view);
462 if (marcus_bains_time_bar_color == NULL)
463 marcus_bains_time_bar_color = "";
464
465 mb_color = day_view->colors[E_DAY_VIEW_COLOR_MARCUS_BAINS_LINE];
466
467 if (gdk_color_parse (marcus_bains_time_bar_color, &mb_color))
468 gdk_cairo_set_source_color (cr, &mb_color);
469 }
470
471 /* Step through each row, drawing the times and the horizontal lines
472 * between them. */
473 for (row = 0, row_y = 0 - y;
474 row < day_view->rows && row_y < height;
475 row++, row_y += day_view->row_height) {
476 gboolean show_midnight_date;
477
478 show_midnight_date =
479 use_zone && hour == 0 &&
480 (minute == 0 || time_divisions == 60) &&
481 midnight_day && midnight_month;
482
483 /* If the row is above the first row we want to draw just
484 * increment the time and skip to the next row. */
485 if (row_y < start_y) {
486 e_day_view_time_item_increment_time (
487 &hour, &minute, time_divisions);
488 continue;
489 }
490
491 /* Calculate the actual hour number to display. For 12-hour
492 * format we convert 0-23 to 12-11am / 12 - 11pm. */
493 e_day_view_convert_time_to_display (
494 day_view, hour,
495 &display_hour,
496 &suffix, &suffix_width);
497
498 if (time_divisions == 60) {
499 /* 60 minute intervals - draw a long horizontal line
500 * between hours and display as one long string,
501 * e.g. "14:00" or "2 pm". */
502 cairo_save (cr);
503 gdk_cairo_set_source_rgba (cr, &dark);
504 cairo_save (cr);
505 cairo_set_line_width (cr, 0.7);
506 cairo_move_to (cr, long_line_x1, row_y);
507 cairo_line_to (cr, long_line_x2, row_y);
508 cairo_stroke (cr);
509 cairo_restore (cr);
510
511 if (show_midnight_date) {
512 g_snprintf (buffer, sizeof (buffer), "%s %s", midnight_day, midnight_month);
513 } else if (e_cal_model_get_use_24_hour_format (model)) {
514 g_snprintf (
515 buffer, sizeof (buffer), "%i:%02i",
516 display_hour, minute);
517 } else {
518 g_snprintf (
519 buffer, sizeof (buffer), "%i %s",
520 display_hour, suffix);
521 }
522
523 cairo_save (cr);
524 if (show_midnight_date)
525 gdk_cairo_set_source_color (cr, &mb_color);
526 else
527 gdk_cairo_set_source_rgba (cr, &fg);
528 layout = gtk_widget_create_pango_layout (GTK_WIDGET (day_view), NULL);
529 pango_layout_set_attributes (layout, tnum);
530 pango_layout_set_text (layout, buffer, -1);
531 pango_layout_get_pixel_size (layout, &minute_width, NULL);
532 cairo_translate (
533 cr, minute_x2 - minute_width,
534 row_y + small_font_y_offset);
535 pango_cairo_update_layout (cr, layout);
536 pango_cairo_show_layout (cr, layout);
537 cairo_restore (cr);
538
539 g_object_unref (layout);
540
541 cairo_restore (cr);
542 } else {
543 /* 5/10/15/30 minute intervals. */
544
545 if (minute == 0) {
546 /* On the hour - draw a long horizontal line
547 * before the hour and display the hour in the
548 * large font. */
549
550 cairo_save (cr);
551 gdk_cairo_set_source_rgba (cr, &dark);
552 if (show_midnight_date)
553 g_snprintf (buffer, sizeof (buffer), "%s", midnight_day);
554 else
555 g_snprintf (
556 buffer, sizeof (buffer), "%i",
557 display_hour);
558
559 cairo_set_line_width (cr, 0.7);
560 cairo_move_to (cr, long_line_x1, row_y);
561 cairo_line_to (cr, long_line_x2, row_y);
562 cairo_stroke (cr);
563 cairo_restore (cr);
564
565 cairo_save (cr);
566 if (show_midnight_date)
567 gdk_cairo_set_source_color (cr, &mb_color);
568 else
569 gdk_cairo_set_source_rgba (cr, &fg);
570 layout = gtk_widget_create_pango_layout (GTK_WIDGET (day_view), NULL);
571 pango_layout_set_attributes (layout, tnum);
572 pango_layout_set_text (layout, buffer, -1);
573 pango_layout_set_font_description (
574 layout, day_view->large_font_desc);
575 pango_layout_get_pixel_size (
576 layout, &hour_width, NULL);
577 cairo_translate (
578 cr, large_hour_x2 - hour_width,
579 row_y + large_hour_y_offset);
580 pango_cairo_update_layout (cr, layout);
581 pango_cairo_show_layout (cr, layout);
582 cairo_restore (cr);
583
584 g_object_unref (layout);
585 } else {
586 /* Within the hour - draw a short line before
587 * the time. */
588 cairo_save (cr);
589 gdk_cairo_set_source_rgba (cr, &dark);
590 cairo_set_line_width (cr, 0.7);
591 cairo_move_to (cr, short_line_x1, row_y);
592 cairo_line_to (cr, long_line_x2, row_y);
593 cairo_stroke (cr);
594 cairo_restore (cr);
595 }
596
597 /* Normally we display the minute in each
598 * interval, but when using 30-minute intervals
599 * we don't display the '30'. */
600 if (time_divisions != 30 || minute != 30) {
601 /* In 12-hour format we display 'am' or 'pm'
602 * instead of '00'. */
603 if (show_midnight_date)
604 g_snprintf (buffer, sizeof (buffer), "%s", midnight_month);
605 else if (minute == 0
606 && !e_cal_model_get_use_24_hour_format (model)) {
607 g_snprintf (buffer, sizeof (buffer), "%s", suffix);
608 } else {
609 g_snprintf (
610 buffer, sizeof (buffer),
611 "%02i", minute);
612 }
613
614 cairo_save (cr);
615 if (show_midnight_date)
616 gdk_cairo_set_source_color (cr, &mb_color);
617 else
618 gdk_cairo_set_source_rgba (cr, &fg);
619 layout = gtk_widget_create_pango_layout (GTK_WIDGET (day_view), NULL);
620 pango_layout_set_attributes (layout, tnum);
621 pango_layout_set_text (layout, buffer, -1);
622 pango_layout_set_font_description (
623 layout, day_view->small_font_desc);
624 pango_layout_get_pixel_size (
625 layout, &minute_width, NULL);
626 cairo_translate (
627 cr, minute_x2 - minute_width,
628 row_y + small_font_y_offset);
629 pango_cairo_update_layout (cr, layout);
630 pango_cairo_show_layout (cr, layout);
631 cairo_restore (cr);
632
633 g_object_unref (layout);
634 }
635 }
636
637 e_day_view_time_item_increment_time (
638 &hour, &minute,
639 time_divisions);
640 }
641
642 pango_attr_list_unref (tnum);
643 pango_font_metrics_unref (large_font_metrics);
644 pango_font_metrics_unref (small_font_metrics);
645
646 g_free (midnight_day);
647 g_free (midnight_month);
648 }
649
650 static void
e_day_view_time_item_draw(GnomeCanvasItem * canvas_item,cairo_t * cr,gint x,gint y,gint width,gint height)651 e_day_view_time_item_draw (GnomeCanvasItem *canvas_item,
652 cairo_t *cr,
653 gint x,
654 gint y,
655 gint width,
656 gint height)
657 {
658 EDayViewTimeItem *time_item;
659
660 time_item = E_DAY_VIEW_TIME_ITEM (canvas_item);
661 g_return_if_fail (time_item != NULL);
662
663 edvti_draw_zone (canvas_item, cr, x, y, width, height, 0, NULL);
664
665 if (time_item->priv->second_zone)
666 edvti_draw_zone (
667 canvas_item, cr, x, y, width, height,
668 time_item->priv->column_width,
669 time_item->priv->second_zone);
670 }
671
672 /* Increment the time by the 5/10/15/30/60 minute interval.
673 * Note that time_divisions is never > 60, so we never have to
674 * worry about adding more than 60 minutes. */
675 static void
e_day_view_time_item_increment_time(gint * hour,gint * minute,gint time_divisions)676 e_day_view_time_item_increment_time (gint *hour,
677 gint *minute,
678 gint time_divisions)
679 {
680 *minute += time_divisions;
681 if (*minute >= 60) {
682 *minute -= 60;
683 /* Currently we never wrap around to the next day, but
684 * we may do if we display extra timezones. */
685 *hour = (*hour + 1) % 24;
686 }
687 }
688
689 static GnomeCanvasItem *
e_day_view_time_item_point(GnomeCanvasItem * item,gdouble x,gdouble y,gint cx,gint cy)690 e_day_view_time_item_point (GnomeCanvasItem *item,
691 gdouble x,
692 gdouble y,
693 gint cx,
694 gint cy)
695 {
696 return item;
697 }
698
699 static gint
e_day_view_time_item_event(GnomeCanvasItem * item,GdkEvent * event)700 e_day_view_time_item_event (GnomeCanvasItem *item,
701 GdkEvent *event)
702 {
703 EDayViewTimeItem *time_item;
704
705 time_item = E_DAY_VIEW_TIME_ITEM (item);
706
707 switch (event->type) {
708 case GDK_BUTTON_PRESS:
709 if (event->button.button == 1) {
710 e_day_view_time_item_on_button_press (time_item, event);
711 } else if (event->button.button == 3) {
712 e_day_view_time_item_show_popup_menu (time_item, event);
713 return TRUE;
714 }
715 break;
716 case GDK_BUTTON_RELEASE:
717 if (event->button.button == 1)
718 e_day_view_time_item_on_button_release (
719 time_item, event);
720 break;
721
722 case GDK_MOTION_NOTIFY:
723 e_day_view_time_item_on_motion_notify (time_item, event);
724 break;
725
726 default:
727 break;
728 }
729
730 return FALSE;
731 }
732
733 static void
edvti_second_zone_changed_cb(GSettings * settings,const gchar * key,gpointer user_data)734 edvti_second_zone_changed_cb (GSettings *settings,
735 const gchar *key,
736 gpointer user_data)
737 {
738 EDayViewTimeItem *time_item = user_data;
739 EDayView *day_view;
740 ICalTimezone *second_zone;
741 gchar *location;
742
743 g_return_if_fail (user_data != NULL);
744 g_return_if_fail (E_IS_DAY_VIEW_TIME_ITEM (time_item));
745
746 location = calendar_config_get_day_second_zone ();
747 second_zone = location ? i_cal_timezone_get_builtin_timezone (location) : NULL;
748 g_free (location);
749
750 if (second_zone == time_item->priv->second_zone)
751 return;
752
753 time_item->priv->second_zone = second_zone;
754
755 day_view = e_day_view_time_item_get_day_view (time_item);
756 gtk_widget_set_size_request (
757 day_view->time_canvas,
758 e_day_view_time_item_get_column_width (time_item), -1);
759 gtk_widget_queue_draw (day_view->time_canvas);
760
761 e_day_view_update_timezone_name_labels (day_view);
762 }
763
764 static void
edvti_on_select_zone(GtkWidget * item,EDayViewTimeItem * time_item)765 edvti_on_select_zone (GtkWidget *item,
766 EDayViewTimeItem *time_item)
767 {
768 calendar_config_select_day_second_zone (gtk_widget_get_toplevel (item));
769 }
770
771 static void
edvti_on_set_zone(GtkWidget * item,EDayViewTimeItem * time_item)772 edvti_on_set_zone (GtkWidget *item,
773 EDayViewTimeItem *time_item)
774 {
775 if (!gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (item)))
776 return;
777
778 calendar_config_set_day_second_zone (
779 g_object_get_data (G_OBJECT (item), "timezone"));
780 }
781
782 static void
e_day_view_time_item_show_popup_menu(EDayViewTimeItem * time_item,GdkEvent * event)783 e_day_view_time_item_show_popup_menu (EDayViewTimeItem *time_item,
784 GdkEvent *event)
785 {
786 static gint divisions[] = { 60, 30, 15, 10, 5 };
787 EDayView *day_view;
788 ECalendarView *cal_view;
789 GtkWidget *menu, *item, *submenu;
790 gchar buffer[256];
791 GSList *group = NULL, *recent_zones, *s;
792 gint current_divisions, i;
793 ICalTimezone *zone;
794
795 day_view = e_day_view_time_item_get_day_view (time_item);
796 g_return_if_fail (day_view != NULL);
797
798 cal_view = E_CALENDAR_VIEW (day_view);
799 current_divisions = e_calendar_view_get_time_divisions (cal_view);
800
801 menu = gtk_menu_new ();
802
803 /* Make sure the menu is destroyed when it disappears. */
804 g_signal_connect (
805 menu, "selection-done",
806 G_CALLBACK (gtk_widget_destroy), NULL);
807
808 for (i = 0; i < G_N_ELEMENTS (divisions); i++) {
809 g_snprintf (
810 buffer, sizeof (buffer),
811 /* Translators: %02i is the number of minutes;
812 * this is a context menu entry to change the
813 * length of the time division in the calendar
814 * day view, e.g. a day is displayed in
815 * 24 "60 minute divisions" or
816 * 48 "30 minute divisions". */
817 _("%02i minute divisions"), divisions[i]);
818 item = gtk_radio_menu_item_new_with_label (group, buffer);
819 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item));
820 gtk_widget_show (item);
821 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
822
823 if (current_divisions == divisions[i])
824 gtk_check_menu_item_set_active (
825 GTK_CHECK_MENU_ITEM (item), TRUE);
826
827 g_object_set_data (
828 G_OBJECT (item), "divisions",
829 GINT_TO_POINTER (divisions[i]));
830
831 g_signal_connect (
832 item, "toggled",
833 G_CALLBACK (e_day_view_time_item_on_set_divisions),
834 time_item);
835 }
836
837 item = gtk_separator_menu_item_new ();
838 gtk_widget_show (item);
839 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
840
841 submenu = gtk_menu_new ();
842 item = gtk_menu_item_new_with_label (_("Show the second time zone"));
843 gtk_widget_show (item);
844 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
845 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), submenu);
846
847 zone = e_calendar_view_get_timezone (E_CALENDAR_VIEW (day_view));
848 if (zone)
849 item = gtk_menu_item_new_with_label (i_cal_timezone_get_display_name (zone));
850 else
851 item = gtk_menu_item_new_with_label ("---");
852 gtk_widget_set_sensitive (item, FALSE);
853 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
854
855 item = gtk_separator_menu_item_new ();
856 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
857
858 group = NULL;
859 item = gtk_radio_menu_item_new_with_label (group, C_("cal-second-zone", "None"));
860 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item));
861 if (!time_item->priv->second_zone)
862 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), TRUE);
863 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
864 g_signal_connect (
865 item, "toggled",
866 G_CALLBACK (edvti_on_set_zone), time_item);
867
868 recent_zones = calendar_config_get_day_second_zones ();
869 for (s = recent_zones; s != NULL; s = s->next) {
870 zone = i_cal_timezone_get_builtin_timezone (s->data);
871 if (!zone)
872 continue;
873
874 item = gtk_radio_menu_item_new_with_label (
875 group, i_cal_timezone_get_display_name (zone));
876 group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item));
877 /* both comes from builtin, thus no problem to compare pointers */
878 if (zone == time_item->priv->second_zone)
879 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), TRUE);
880 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
881 g_object_set_data_full (
882 G_OBJECT (item), "timezone",
883 g_strdup (s->data), g_free);
884 g_signal_connect (
885 item, "toggled",
886 G_CALLBACK (edvti_on_set_zone), time_item);
887 }
888 calendar_config_free_day_second_zones (recent_zones);
889
890 item = gtk_separator_menu_item_new ();
891 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
892
893 item = gtk_menu_item_new_with_label (_("Select…"));
894 g_signal_connect (
895 item, "activate",
896 G_CALLBACK (edvti_on_select_zone), time_item);
897 gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
898
899 gtk_widget_show_all (submenu);
900
901 gtk_menu_attach_to_widget (GTK_MENU (menu),
902 GTK_WIDGET (day_view),
903 NULL);
904 gtk_menu_popup_at_pointer (GTK_MENU (menu), event);
905 }
906
907 static void
e_day_view_time_item_on_set_divisions(GtkWidget * item,EDayViewTimeItem * time_item)908 e_day_view_time_item_on_set_divisions (GtkWidget *item,
909 EDayViewTimeItem *time_item)
910 {
911 EDayView *day_view;
912 ECalendarView *cal_view;
913 gint divisions;
914
915 day_view = e_day_view_time_item_get_day_view (time_item);
916 g_return_if_fail (day_view != NULL);
917
918 if (!gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (item)))
919 return;
920
921 divisions = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (item), "divisions"));
922
923 cal_view = E_CALENDAR_VIEW (day_view);
924 e_calendar_view_set_time_divisions (cal_view, divisions);
925 }
926
927 static void
e_day_view_time_item_on_button_press(EDayViewTimeItem * time_item,GdkEvent * event)928 e_day_view_time_item_on_button_press (EDayViewTimeItem *time_item,
929 GdkEvent *event)
930 {
931 GdkWindow *window;
932 EDayView *day_view;
933 GnomeCanvas *canvas;
934 GdkGrabStatus grab_status;
935 GdkDevice *event_device;
936 guint32 event_time;
937 gint row;
938
939 day_view = e_day_view_time_item_get_day_view (time_item);
940 g_return_if_fail (day_view != NULL);
941
942 canvas = GNOME_CANVAS_ITEM (time_item)->canvas;
943
944 row = e_day_view_time_item_convert_position_to_row (
945 time_item,
946 event->button.y);
947
948 if (row == -1)
949 return;
950
951 if (!gtk_widget_has_focus (GTK_WIDGET (day_view)))
952 gtk_widget_grab_focus (GTK_WIDGET (day_view));
953
954 window = gtk_layout_get_bin_window (GTK_LAYOUT (canvas));
955
956 event_device = gdk_event_get_device (event);
957 event_time = gdk_event_get_time (event);
958
959 grab_status = gdk_device_grab (
960 event_device,
961 window,
962 GDK_OWNERSHIP_NONE,
963 FALSE,
964 GDK_POINTER_MOTION_MASK |
965 GDK_BUTTON_RELEASE_MASK,
966 NULL,
967 event_time);
968
969 if (grab_status == GDK_GRAB_SUCCESS) {
970 e_day_view_start_selection (day_view, -1, row);
971 time_item->priv->dragging_selection = TRUE;
972 }
973 }
974
975 static void
e_day_view_time_item_on_button_release(EDayViewTimeItem * time_item,GdkEvent * event)976 e_day_view_time_item_on_button_release (EDayViewTimeItem *time_item,
977 GdkEvent *event)
978 {
979 EDayView *day_view;
980
981 day_view = e_day_view_time_item_get_day_view (time_item);
982 g_return_if_fail (day_view != NULL);
983
984 if (time_item->priv->dragging_selection) {
985 GdkDevice *event_device;
986 guint32 event_time;
987
988 event_device = gdk_event_get_device (event);
989 event_time = gdk_event_get_time (event);
990 gdk_device_ungrab (event_device, event_time);
991
992 e_day_view_finish_selection (day_view);
993 e_day_view_stop_auto_scroll (day_view);
994 }
995
996 time_item->priv->dragging_selection = FALSE;
997 }
998
999 static void
e_day_view_time_item_on_motion_notify(EDayViewTimeItem * time_item,GdkEvent * event)1000 e_day_view_time_item_on_motion_notify (EDayViewTimeItem *time_item,
1001 GdkEvent *event)
1002 {
1003 EDayView *day_view;
1004 GnomeCanvas *canvas;
1005 gdouble window_y;
1006 gint y, row;
1007
1008 if (!time_item->priv->dragging_selection)
1009 return;
1010
1011 day_view = e_day_view_time_item_get_day_view (time_item);
1012 g_return_if_fail (day_view != NULL);
1013
1014 canvas = GNOME_CANVAS_ITEM (time_item)->canvas;
1015
1016 y = event->motion.y;
1017 row = e_day_view_time_item_convert_position_to_row (time_item, y);
1018
1019 if (row != -1) {
1020 gnome_canvas_world_to_window (
1021 canvas, 0, event->motion.y,
1022 NULL, &window_y);
1023 e_day_view_update_selection (day_view, -1, row);
1024 e_day_view_check_auto_scroll (day_view, -1, (gint) window_y);
1025 }
1026 }
1027
1028 /* Returns the row corresponding to the y position, or -1. */
1029 static gint
e_day_view_time_item_convert_position_to_row(EDayViewTimeItem * time_item,gint y)1030 e_day_view_time_item_convert_position_to_row (EDayViewTimeItem *time_item,
1031 gint y)
1032 {
1033 EDayView *day_view;
1034 gint row;
1035
1036 day_view = e_day_view_time_item_get_day_view (time_item);
1037 g_return_val_if_fail (day_view != NULL, -1);
1038
1039 if (y < 0)
1040 return -1;
1041
1042 row = y / day_view->row_height;
1043 if (row >= day_view->rows)
1044 return -1;
1045
1046 return row;
1047 }
1048
1049 EDayView *
e_day_view_time_item_get_day_view(EDayViewTimeItem * time_item)1050 e_day_view_time_item_get_day_view (EDayViewTimeItem *time_item)
1051 {
1052 g_return_val_if_fail (E_IS_DAY_VIEW_TIME_ITEM (time_item), NULL);
1053
1054 return time_item->priv->day_view;
1055 }
1056
1057 void
e_day_view_time_item_set_day_view(EDayViewTimeItem * time_item,EDayView * day_view)1058 e_day_view_time_item_set_day_view (EDayViewTimeItem *time_item,
1059 EDayView *day_view)
1060 {
1061 g_return_if_fail (E_IS_DAY_VIEW_TIME_ITEM (time_item));
1062 g_return_if_fail (E_IS_DAY_VIEW (day_view));
1063
1064 if (time_item->priv->day_view == day_view)
1065 return;
1066
1067 if (time_item->priv->day_view != NULL)
1068 g_object_unref (time_item->priv->day_view);
1069
1070 time_item->priv->day_view = g_object_ref (day_view);
1071
1072 g_object_notify (G_OBJECT (time_item), "day-view");
1073 }
1074
1075 /* Returns the minimum width needed for the column, by adding up all the
1076 * maximum widths of the strings. The string widths are all calculated in
1077 * the style_updated handlers of EDayView and EDayViewTimeCanvas. */
1078 gint
e_day_view_time_item_get_column_width(EDayViewTimeItem * time_item)1079 e_day_view_time_item_get_column_width (EDayViewTimeItem *time_item)
1080 {
1081 EDayView *day_view;
1082 PangoAttrList *tnum;
1083 PangoAttribute *attr;
1084 gint digit, large_digit_width, max_large_digit_width = 0;
1085 gint max_suffix_width, max_minute_or_suffix_width;
1086 gint column_width_default, column_width_60_min_rows;
1087
1088 day_view = e_day_view_time_item_get_day_view (time_item);
1089 g_return_val_if_fail (day_view != NULL, 0);
1090
1091 tnum = pango_attr_list_new ();
1092 attr = pango_attr_font_features_new ("tnum=1");
1093 pango_attr_list_insert_before (tnum, attr);
1094
1095 /* Find the maximum width a digit can have. FIXME: We could use pango's
1096 * approximation function, but I worry it won't be precise enough. Also
1097 * it needs a language tag that I don't know where to get. */
1098 for (digit = '0'; digit <= '9'; digit++) {
1099 PangoLayout *layout;
1100 gchar digit_str[2];
1101
1102 digit_str[0] = digit;
1103 digit_str[1] = '\0';
1104
1105 layout = gtk_widget_create_pango_layout (GTK_WIDGET (day_view), digit_str);
1106 pango_layout_set_attributes (layout, tnum);
1107 pango_layout_set_font_description (layout, day_view->large_font_desc);
1108 pango_layout_get_pixel_size (layout, &large_digit_width, NULL);
1109
1110 g_object_unref (layout);
1111
1112 max_large_digit_width = MAX (
1113 max_large_digit_width,
1114 large_digit_width);
1115 }
1116
1117 pango_attr_list_unref (tnum);
1118
1119 /* Calculate the width of each time column, using the maximum of the
1120 * default format with large hour numbers, and the 60-min divisions
1121 * format which uses small text. */
1122 max_suffix_width = MAX (
1123 day_view->am_string_width,
1124 day_view->pm_string_width);
1125
1126 max_minute_or_suffix_width = MAX (
1127 max_suffix_width,
1128 day_view->max_minute_width);
1129
1130 column_width_default = max_large_digit_width * 2
1131 + max_minute_or_suffix_width
1132 + E_DVTMI_MIN_X_PAD * 2
1133 + E_DVTMI_HOUR_L_PAD
1134 + E_DVTMI_HOUR_R_PAD
1135 + E_DVTMI_TIME_GRID_X_PAD * 2;
1136
1137 column_width_60_min_rows = day_view->max_small_hour_width
1138 + day_view->colon_width
1139 + max_minute_or_suffix_width
1140 + E_DVTMI_60_MIN_X_PAD * 2
1141 + E_DVTMI_TIME_GRID_X_PAD * 2;
1142
1143 time_item->priv->column_width =
1144 MAX (column_width_default, column_width_60_min_rows);
1145
1146 if (time_item->priv->second_zone)
1147 return (2 * time_item->priv->column_width) -
1148 E_DVTMI_TIME_GRID_X_PAD;
1149
1150 return time_item->priv->column_width;
1151 }
1152
1153 ICalTimezone *
e_day_view_time_item_get_second_zone(EDayViewTimeItem * time_item)1154 e_day_view_time_item_get_second_zone (EDayViewTimeItem *time_item)
1155 {
1156 g_return_val_if_fail (E_IS_DAY_VIEW_TIME_ITEM (time_item), NULL);
1157
1158 return time_item->priv->second_zone;
1159 }
1160