aboutsummaryrefslogtreecommitdiffstats
path: root/calendar/gui/e-day-view-top-item.c
blob: fe19c6b491810875485d6bc9a22e6cd94003f315 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/* 
 * Author : 
 *  Damon Chaplin <damon@helixcode.com>
 *
 * Copyright 1999, Helix Code, Inc.
 *
 * 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 (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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

/*
 * EDayViewTopItem - displays the top part of the Day/Work Week calendar view.
 */

#include "e-day-view-top-item.h"

static void e_day_view_top_item_class_init  (EDayViewTopItemClass *class);
static void e_day_view_top_item_init        (EDayViewTopItem *dvtitem);

static void e_day_view_top_item_set_arg     (GtkObject   *o,
                         GtkArg      *arg,
                         guint        arg_id);
static void e_day_view_top_item_update      (GnomeCanvasItem *item,
                         double      *affine,
                         ArtSVP      *clip_path,
                         int          flags);
static void e_day_view_top_item_draw        (GnomeCanvasItem *item,
                         GdkDrawable     *drawable,
                         int          x,
                         int          y,
                         int          width,
                         int          height);
static void e_day_view_top_item_draw_long_event (EDayViewTopItem *dvtitem,
                         gint         event_num,
                         GdkDrawable     *drawable,
                         int          x,
                         int          y,
                         int          width,
                         int          height);
static void e_day_view_top_item_draw_triangle   (EDayViewTopItem *dvtitem,
                         GdkDrawable     *drawable,
                         gint         x,
                         gint         y,
                         gint         w,
                         gint         h);
static double e_day_view_top_item_point     (GnomeCanvasItem *item,
                         double       x,
                         double       y,
                         int          cx,
                         int          cy,
                         GnomeCanvasItem **actual_item);
static gint e_day_view_top_item_event       (GnomeCanvasItem *item,
                         GdkEvent    *event);


static GnomeCanvasItemClass *parent_class;

/* The arguments we take */
enum {
    ARG_0,
    ARG_DAY_VIEW
};


GtkType
e_day_view_top_item_get_type (void)
{
    static GtkType e_day_view_top_item_type = 0;

    if (!e_day_view_top_item_type) {
        GtkTypeInfo e_day_view_top_item_info = {
            "EDayViewTopItem",
            sizeof (EDayViewTopItem),
            sizeof (EDayViewTopItemClass),
            (GtkClassInitFunc) e_day_view_top_item_class_init,
            (GtkObjectInitFunc) e_day_view_top_item_init,
            NULL, /* reserved_1 */
            NULL, /* reserved_2 */
            (GtkClassInitFunc) NULL
        };

        e_day_view_top_item_type = gtk_type_unique (gnome_canvas_item_get_type (), &e_day_view_top_item_info);
    }

    return e_day_view_top_item_type;
}


static void
e_day_view_top_item_class_init (EDayViewTopItemClass *class)
{
    GtkObjectClass  *object_class;
    GnomeCanvasItemClass *item_class;

    parent_class = gtk_type_class (gnome_canvas_item_get_type());

    object_class = (GtkObjectClass *) class;
    item_class = (GnomeCanvasItemClass *) class;

    gtk_object_add_arg_type ("EDayViewTopItem::day_view",
                 GTK_TYPE_POINTER, GTK_ARG_WRITABLE,
                 ARG_DAY_VIEW);

    object_class->set_arg = e_day_view_top_item_set_arg;

    /* GnomeCanvasItem method overrides */
    item_class->update      = e_day_view_top_item_update;
    item_class->draw        = e_day_view_top_item_draw;
    item_class->point       = e_day_view_top_item_point;
    item_class->event       = e_day_view_top_item_event;
}


static void
e_day_view_top_item_init (EDayViewTopItem *dvtitem)
{
    dvtitem->day_view = NULL;
}


static void
e_day_view_top_item_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    GnomeCanvasItem *item;
    EDayViewTopItem *dvtitem;

    item = GNOME_CANVAS_ITEM (o);
    dvtitem = E_DAY_VIEW_TOP_ITEM (o);
    
    switch (arg_id){
    case ARG_DAY_VIEW:
        dvtitem->day_view = GTK_VALUE_POINTER (*arg);
        break;
    }
}


static void
e_day_view_top_item_update (GnomeCanvasItem *item,
                double      *affine,
                ArtSVP      *clip_path,
                int          flags)
{
    if (GNOME_CANVAS_ITEM_CLASS (parent_class)->update)
        (* GNOME_CANVAS_ITEM_CLASS (parent_class)->update) (item, affine, clip_path, flags);

    /* The item covers the entire canvas area. */
    item->x1 = 0;
    item->y1 = 0;
    item->x2 = INT_MAX;
    item->y2 = INT_MAX;
}


/*
 * DRAWING ROUTINES - functions to paint the canvas item.
 */

static void
e_day_view_top_item_draw (GnomeCanvasItem *canvas_item,
              GdkDrawable     *drawable,
              int          x,
              int          y,
              int          width,
              int          height)
{
    EDayViewTopItem *dvtitem;
    EDayView *day_view;
    GtkStyle *style;
    GdkGC *fg_gc, *bg_gc, *light_gc, *dark_gc;
    gchar buffer[128];
    GdkRectangle clip_rect;
    GdkFont *font;
    gint canvas_width, canvas_height, left_edge, day, date_width, date_x;
    gint item_height, event_num;
    struct tm *day_start;

#if 0
    g_print ("In e_day_view_top_item_draw %i,%i %ix%i\n",
         x, y, width, height);
#endif
    dvtitem = E_DAY_VIEW_TOP_ITEM (canvas_item);
    day_view = dvtitem->day_view;
    g_return_if_fail (day_view != NULL);

    style = GTK_WIDGET (day_view)->style;
    font = style->font;
    fg_gc = style->fg_gc[GTK_STATE_NORMAL];
    bg_gc = style->bg_gc[GTK_STATE_NORMAL];
    light_gc = style->light_gc[GTK_STATE_NORMAL];
    dark_gc = style->dark_gc[GTK_STATE_NORMAL];
    canvas_width = GTK_WIDGET (canvas_item->canvas)->allocation.width;
    canvas_height = GTK_WIDGET (canvas_item->canvas)->allocation.height;
    left_edge = 0;
    item_height = day_view->top_row_height - E_DAY_VIEW_TOP_CANVAS_Y_GAP;

    /* Clear the entire background. */
    gdk_draw_rectangle (drawable, dark_gc, TRUE,
                left_edge - x, 0,
                canvas_width - left_edge, height);

    /* Draw the shadow around the dates. */
    gdk_draw_line (drawable, light_gc,
               left_edge + 1 - x, 1 - y,
               canvas_width - 2 - x, 1 - y);
    gdk_draw_line (drawable, light_gc,
               left_edge + 1 - x, 2 - y,
               left_edge + 1 - x, item_height - 1 - y);

    /* Draw the background for the dates. */
    gdk_draw_rectangle (drawable, bg_gc, TRUE,
                left_edge + 2 - x, 2 - y,
                canvas_width - left_edge - 3,
                item_height - 3);

    /* Draw the selection background. */
    if (day_view->selection_start_col != -1) {
        gint start_col, end_col, rect_x, rect_y, rect_w, rect_h;

        start_col = day_view->selection_start_col;
        end_col = day_view->selection_end_col;

        if (end_col > start_col
            || day_view->selection_start_row == -1
            || day_view->selection_end_row == -1) {
            rect_x = day_view->day_offsets[start_col];
            rect_y = item_height;
            rect_w = day_view->day_offsets[end_col + 1] - rect_x;
            rect_h = canvas_height - 1 - rect_y;

            gdk_draw_rectangle (drawable, style->white_gc, TRUE,
                        rect_x - x, rect_y - y,
                        rect_w, rect_h);
        }
    }

    /* Draw the date. Set a clipping rectangle so we don't draw over the
       next day. */
    for (day = 0; day < day_view->days_shown; day++) {
        day_start = localtime (&day_view->day_starts[day]);

        if (day_view->date_format == E_DAY_VIEW_DATE_FULL)
            strftime (buffer, 128, "%d %B", day_start);
        else if (day_view->date_format == E_DAY_VIEW_DATE_ABBREVIATED)
            strftime (buffer, 128, "%d %b", day_start);
        else
            strftime (buffer, 128, "%d", day_start);

        clip_rect.x = day_view->day_offsets[day] - x;
        clip_rect.y = 2 - y;
        clip_rect.width = day_view->day_widths[day];
        clip_rect.height = item_height - 2;
        gdk_gc_set_clip_rectangle (fg_gc, &clip_rect);

        date_width = gdk_string_width (font, buffer);
        date_x = day_view->day_offsets[day] + (day_view->day_widths[day] - date_width) / 2;
        gdk_draw_string (drawable, font, fg_gc,
                 date_x - x, 3 + font->ascent - y, buffer);

        gdk_gc_set_clip_rectangle (fg_gc, NULL);

        /* Draw the lines down the left and right of the date cols. */
        if (day != 0) {
            gdk_draw_line (drawable, light_gc,
                       day_view->day_offsets[day] - x,
                       4 - y,
                       day_view->day_offsets[day] - x,
                       item_height - 4 - y);

            gdk_draw_line (drawable, dark_gc,
                       day_view->day_offsets[day] - 1 - x,
                       4 - y,
                       day_view->day_offsets[day] - 1 - x,
                       item_height - 4 - y);
        }

        /* Draw the lines between each column. */
        if (day != 0) {
            gdk_draw_line (drawable, style->black_gc,
                       day_view->day_offsets[day] - x,
                       item_height - y,
                       day_view->day_offsets[day] - x,
                       canvas_height - y);
        }
    }

    /* Draw the long events. */
    for (event_num = 0; event_num < day_view->long_events->len;
         event_num++) {
        e_day_view_top_item_draw_long_event (dvtitem, event_num,
                             drawable,
                             x, y, width, height);
    }
}


/* This draws one event in the top canvas. */
static void
e_day_view_top_item_draw_long_event (EDayViewTopItem *dvtitem,
                     gint         event_num,
                     GdkDrawable     *drawable,
                     int          x,
                     int          y,
                     int          width,
                     int          height)
{
    EDayView *day_view;
    EDayViewEvent *event;
    GtkStyle *style;
    GdkGC *gc, *fg_gc, *bg_gc;
    GdkFont *font;
    gint start_day, end_day;
    gint item_x, item_y, item_w, item_h;
    gint text_x, icon_x, icon_y, icon_x_inc;
    iCalObject *ico;
    gchar buffer[16];
    gint hour, minute, offset, time_width;
    gboolean draw_start_triangle, draw_end_triangle;

    day_view = dvtitem->day_view;

    /* If the event is currently being dragged, don't draw it. It will
       be drawn in the special drag items. */
    if (day_view->drag_event_day == E_DAY_VIEW_LONG_EVENT
        && day_view->drag_event_num == event_num)
        return;

    if (!e_day_view_get_long_event_position (day_view, event_num,
                         &start_day, &end_day,
                         &item_x, &item_y,
                         &item_w, &item_h))
        return;

    event = &g_array_index (day_view->long_events, EDayViewEvent,
                event_num);

    style = GTK_WIDGET (day_view)->style;
    font = style->font;
    gc = day_view->main_gc;
    fg_gc = style->fg_gc[GTK_STATE_NORMAL];
    bg_gc = style->bg_gc[GTK_STATE_NORMAL];
    ico = event->ico;

    /* Draw the lines across the top & bottom of the entire event. */
    gdk_draw_line (drawable, fg_gc,
               item_x - x, item_y - y,
               item_x + item_w - 1 - x, item_y - y);
    gdk_draw_line (drawable, fg_gc,
               item_x - x, item_y + item_h - 1 - y,
               item_x + item_w - 1 - x, item_y + item_h - 1 - y);

    /* Fill it in. */
    gdk_draw_rectangle (drawable, bg_gc, TRUE,
                item_x - x, item_y + 1 - y,
                item_w, item_h - 2);

    /* When resizing we don't draw the triangles.*/
    draw_start_triangle = TRUE;
    draw_end_triangle = TRUE;
    if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE
        && day_view->resize_event_day == E_DAY_VIEW_LONG_EVENT
        && day_view->resize_event_num == event_num) {
        if (day_view->resize_drag_pos == E_DAY_VIEW_POS_LEFT_EDGE)
            draw_start_triangle = FALSE;

        if  (day_view->resize_drag_pos == E_DAY_VIEW_POS_RIGHT_EDGE)
            draw_end_triangle = FALSE;
    }

    /* If the event starts before the first day shown, draw a triangle,
       else just draw a vertical line down the left. */
    if (draw_start_triangle
        && event->start < day_view->day_starts[start_day]) {
        e_day_view_top_item_draw_triangle (dvtitem, drawable,
                           item_x - x, item_y - y,
                           -E_DAY_VIEW_BAR_WIDTH,
                           item_h);
    } else {
        gdk_draw_line (drawable, fg_gc,
                   item_x - x, item_y - y,
                   item_x - x, item_y + item_h - 1 - y);
    }

    /* Similar for the event end. */
    if (draw_end_triangle
        && event->end > day_view->day_starts[end_day + 1]) {
        e_day_view_top_item_draw_triangle (dvtitem, drawable,
                           item_x + item_w - 1 - x,
                           item_y - y,
                           E_DAY_VIEW_BAR_WIDTH,
                           item_h);
    } else {
        gdk_draw_line (drawable, fg_gc,
                   item_x + item_w - 1 - x,
                   item_y - y,
                   item_x + item_w - 1 - x,
                   item_y + item_h - 1 - y);
    }

    /* If we are editing the event we don't show the icons or the start
       & end times. */
    if (day_view->editing_event_day == E_DAY_VIEW_LONG_EVENT
        && day_view->editing_event_num == event_num)
        return;

    /* Determine the position of the label, so we know where to place the
       icons. Note that since the top canvas never scrolls we don't need
       to take the scroll offset into account. It will always be 0. */
    text_x = event->canvas_item->x1;

    /* Draw the icons. */
    icon_x_inc = E_DAY_VIEW_ICON_WIDTH + E_DAY_VIEW_ICON_X_PAD;
    icon_x = text_x - icon_x_inc - x;
    icon_y = item_y + 1 + E_DAY_VIEW_ICON_Y_PAD - y;

    if (ico->recur) {
        gdk_gc_set_clip_origin (gc, icon_x, icon_y);
        gdk_gc_set_clip_mask (gc, day_view->recurrence_mask);
        gdk_draw_pixmap (drawable, gc,
                 day_view->recurrence_icon,
                 0, 0, icon_x, icon_y,
                 E_DAY_VIEW_ICON_WIDTH,
                 E_DAY_VIEW_ICON_HEIGHT);
        icon_x -= icon_x_inc;
    }

    if (ico->dalarm.enabled || ico->malarm.enabled
        || ico->palarm.enabled || ico->aalarm.enabled) {
        gdk_gc_set_clip_origin (gc, icon_x, icon_y);
        gdk_gc_set_clip_mask (gc, day_view->reminder_mask);
        gdk_draw_pixmap (drawable, gc,
                 day_view->reminder_icon,
                 0, 0, icon_x, icon_y,
                 E_DAY_VIEW_ICON_WIDTH,
                 E_DAY_VIEW_ICON_HEIGHT);
        icon_x -= icon_x_inc;
    }
    gdk_gc_set_clip_mask (gc, NULL);

    /* Draw the start & end times, if necessary.
       Note that GtkLabel adds 1 to the ascent so we must do that to be
       level with it. */
    if (event->start > day_view->day_starts[start_day]) {
        offset = day_view->first_hour_shown * 60
            + day_view->first_minute_shown + event->start_minute;
        hour = offset / 60;
        minute = offset % 60;
        sprintf (buffer, "%02i:%02i", hour, minute);
        gdk_draw_string (drawable, font, fg_gc,
                 item_x + + E_DAY_VIEW_LONG_EVENT_X_PAD  - x,
                 item_y + E_DAY_VIEW_LONG_EVENT_Y_PAD + font->ascent + 1 - y,
                 buffer);
    }

    if (event->end < day_view->day_starts[end_day + 1]) {
        offset = day_view->first_hour_shown * 60
            + day_view->first_minute_shown + event->end_minute;
        hour = offset / 60;
        minute = offset % 60;
        sprintf (buffer, "%02i:%02i", hour, minute);
        time_width = day_view->small_hour_widths[hour]
            + day_view->max_minute_width + day_view->colon_width;
        gdk_draw_string (drawable, font, fg_gc,
                 item_x + item_w - E_DAY_VIEW_LONG_EVENT_X_PAD - time_width - E_DAY_VIEW_LONG_EVENT_TIME_X_PAD - x,
                 item_y + E_DAY_VIEW_LONG_EVENT_Y_PAD + font->ascent + 1 - y,
                 buffer);
    }
}


/* This draws a little triangle to indicate that an event extends past
   the days visible on screen. */
static void
e_day_view_top_item_draw_triangle (EDayViewTopItem *dvtitem,
                   GdkDrawable     *drawable,
                   gint         x,
                   gint         y,
                   gint         w,
                   gint         h)
{
    EDayView *day_view;
    GtkStyle *style;
    GdkGC *fg_gc, *bg_gc;
    GdkPoint points[3];

    day_view = dvtitem->day_view;

    style = GTK_WIDGET (day_view)->style;
    fg_gc = style->fg_gc[GTK_STATE_NORMAL];
    bg_gc = style->bg_gc[GTK_STATE_NORMAL];

    points[0].x = x;
    points[0].y = y;
    points[1].x = x + w;
    points[1].y = y + (h / 2) - 1;
    points[2].x = x;
    points[2].y = y + h - 1;

    gdk_draw_polygon (drawable, bg_gc, TRUE, points, 3);
    gdk_draw_line (drawable, fg_gc, x, y, x + w, y + (h / 2) - 1);
    gdk_draw_line (drawable, fg_gc, x, y + h - 1, x + w, y + h - (h / 2));
}


/* This is supposed to return the nearest item the the point and the distance.
   Since we are the only item we just return ourself and 0 for the distance.
   This is needed so that we get button/motion events. */
static double
e_day_view_top_item_point (GnomeCanvasItem *item, double x, double y,
               int cx, int cy,
               GnomeCanvasItem **actual_item)
{
    *actual_item = item;
    return 0.0;
}


static gint
e_day_view_top_item_event (GnomeCanvasItem *item, GdkEvent *event)
{
    EDayViewTopItem *dvtitem;

    dvtitem = E_DAY_VIEW_TOP_ITEM (item);

    switch (event->type) {
    case GDK_BUTTON_PRESS:

    case GDK_BUTTON_RELEASE:

    case GDK_MOTION_NOTIFY:

    default:
        break;
    }

    return FALSE;
}