aboutsummaryrefslogtreecommitdiffstats
path: root/calendar/gui/e-week-view-titles-item.c
blob: 066e2c4d455d9db0c7c1313c7c3b4465a7cb8680 (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
/*
 * EWeekViewTitlesItem - displays the 'Monday', 'Tuesday' etc. at the top of
 * the Month calendar view.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 * Authors:
 *      Damon Chaplin <damon@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 */

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

#include <string.h>
#include <e-util/e-util.h>
#include "e-week-view-titles-item.h"

struct _EWeekViewTitlesItemPrivate {
    EWeekView *week_view;
};

enum {
    PROP_0,
    PROP_WEEK_VIEW
};

static gpointer parent_class;

static void
week_view_titles_item_set_property (GObject *object,
                                    guint property_id,
                                    const GValue *value,
                                    GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_WEEK_VIEW:
            e_week_view_titles_item_set_week_view (
                E_WEEK_VIEW_TITLES_ITEM (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
week_view_titles_item_get_property (GObject *object,
                                    guint property_id,
                                    GValue *value,
                                    GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_WEEK_VIEW:
            g_value_set_object (
                value,
                e_week_view_titles_item_get_week_view (
                E_WEEK_VIEW_TITLES_ITEM (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
week_view_titles_item_dispose (GObject *object)
{
    EWeekViewTitlesItemPrivate *priv;

    priv = E_WEEK_VIEW_TITLES_ITEM (object)->priv;

    if (priv->week_view != NULL) {
        g_object_unref (priv->week_view);
        priv->week_view = NULL;
    }

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
week_view_titles_item_update (GnomeCanvasItem *item,
                              const cairo_matrix_t *i2c,
                              gint flags)
{
    GnomeCanvasItemClass *canvas_item_class;

    /* Chain up to parent's update() method. */
    canvas_item_class = GNOME_CANVAS_ITEM_CLASS (parent_class);
    canvas_item_class->update (item, i2c, flags);

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

static void
week_view_titles_item_draw (GnomeCanvasItem *canvas_item,
                            cairo_t *cr,
                            gint x,
                            gint y,
                            gint width,
                            gint height)
{
    EWeekViewTitlesItem *titles_item;
    EWeekView *week_view;
    GtkStyle *style;
    gint col_width, col, date_width, date_x;
    gchar buffer[128];
    GtkAllocation allocation;
    gboolean abbreviated;
    gint weekday;
    PangoLayout *layout;

    titles_item = E_WEEK_VIEW_TITLES_ITEM (canvas_item);
    week_view = e_week_view_titles_item_get_week_view (titles_item);
    g_return_if_fail (week_view != NULL);

    cairo_save (cr);
    cairo_set_line_width (cr, 1.0);

    gtk_widget_get_allocation (
        GTK_WIDGET (canvas_item->canvas), &allocation);

    style = gtk_widget_get_style (GTK_WIDGET (week_view));
    layout = gtk_widget_create_pango_layout (GTK_WIDGET (week_view), NULL);

    /* Draw the shadow around the dates. */
    gdk_cairo_set_source_color (cr, &style->light[GTK_STATE_NORMAL]);
    cairo_move_to (cr, 1.5 - x, 1.5 - y);
    cairo_rel_line_to (cr, allocation.width - 1, 0);
    cairo_move_to (cr, 1.5 - x, 2.5 - y);
    cairo_rel_line_to (cr, 0, allocation.height - 1);
    cairo_stroke (cr);

    gdk_cairo_set_source_color (cr, &style->dark[GTK_STATE_NORMAL]);
    cairo_rectangle (cr, 0.5 - x, 0.5 - y, allocation.width - 1, allocation.height);
    cairo_stroke (cr);

    /* Determine the format to use. */
    col_width = allocation.width / week_view->columns;
    abbreviated = (week_view->max_day_width + 2 >= col_width);

    /* Shift right one pixel to account for the shadow around the main
       canvas. */
    x--;

    /* Draw the date. Set a clipping rectangle so we don't draw over the
       next day. */
    weekday = week_view->display_start_day;
    for (col = 0; col < week_view->columns; col++) {
        if (weekday == 5 && week_view->compress_weekend)
            g_snprintf (
                buffer, sizeof (buffer), "%s/%s",
                e_get_weekday_name (G_DATE_SATURDAY, TRUE),
                e_get_weekday_name (G_DATE_SUNDAY, TRUE));
        else
            g_snprintf (
                buffer, sizeof (buffer), "%s",
                e_get_weekday_name (weekday + 1, abbreviated));

        cairo_save (cr);

        cairo_rectangle (cr,
                 week_view->col_offsets[col] - x, 2 - y,
                 week_view->col_widths[col], allocation.height - 2);
        cairo_clip (cr);

        if (weekday == 5 && week_view->compress_weekend)
            date_width = week_view->abbr_day_widths[5]
                + week_view->slash_width
                + week_view->abbr_day_widths[6];
        else if (abbreviated)
            date_width = week_view->abbr_day_widths[weekday];
        else
            date_width = week_view->day_widths[weekday];

        date_x = week_view->col_offsets[col]
            + (week_view->col_widths[col] - date_width) / 2;
        date_x = MAX (date_x, week_view->col_offsets[col]);

        pango_layout_set_text (layout, buffer, -1);
        cairo_move_to (cr, date_x - x, 3 - y);
        pango_cairo_show_layout (cr, layout);

        cairo_restore (cr);

        /* Draw the lines down the left and right of the date cols. */
        if (col != 0) {
            gdk_cairo_set_source_color (cr, &style->light[GTK_STATE_NORMAL]);
            cairo_move_to (cr, week_view->col_offsets[col] - x + 0.5, 4.5 - y);
            cairo_rel_line_to (cr, 0, allocation.height - 8);
            cairo_stroke (cr);

            gdk_cairo_set_source_color (cr, &style->dark[GTK_STATE_NORMAL]);
            cairo_move_to (cr, week_view->col_offsets[col] - x - 0.5, 4.5 - y);
            cairo_rel_line_to (cr, 0, allocation.height - 8);
            cairo_stroke (cr);
        }

        /* Draw the lines between each column. */
        if (col != 0) {
            cairo_set_source_rgb (cr, 0, 0, 0);
            cairo_rectangle (cr, week_view->col_offsets[col] - x, allocation.height - y, 1, 1);
            cairo_fill (cr);
        }

        if (weekday == 5 && week_view->compress_weekend)
            weekday += 2;
        else
            weekday++;

        weekday = weekday % 7;
    }

    g_object_unref (layout);
    cairo_restore (cr);
}

static GnomeCanvasItem *
week_view_titles_item_point (GnomeCanvasItem *item,
                             gdouble x,
                             gdouble y,
                             gint cx,
                             gint cy)
{
    return item;
}

static void
week_view_titles_item_class_init (EWeekViewTitlesItemClass *class)
{
    GObjectClass  *object_class;
    GnomeCanvasItemClass *item_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (EWeekViewTitlesItemPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = week_view_titles_item_set_property;
    object_class->get_property = week_view_titles_item_get_property;
    object_class->dispose = week_view_titles_item_dispose;

    item_class = GNOME_CANVAS_ITEM_CLASS (class);
    item_class->update = week_view_titles_item_update;
    item_class->draw = week_view_titles_item_draw;
    item_class->point = week_view_titles_item_point;

    g_object_class_install_property (
        object_class,
        PROP_WEEK_VIEW,
        g_param_spec_object (
            "week-view",
            "Week View",
            NULL,
            E_TYPE_WEEK_VIEW,
            G_PARAM_READWRITE));
}

static void
week_view_titles_item_init (EWeekViewTitlesItem *titles_item)
{
    titles_item->priv = G_TYPE_INSTANCE_GET_PRIVATE (
        titles_item, E_TYPE_WEEK_VIEW_TITLES_ITEM,
        EWeekViewTitlesItemPrivate);
}

GType
e_week_view_titles_item_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        const GTypeInfo type_info = {
            sizeof (EWeekViewTitlesItemClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) week_view_titles_item_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EWeekViewTitlesItem),
            0,     /* n_preallocs */
            (GInstanceInitFunc) week_view_titles_item_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            GNOME_TYPE_CANVAS_ITEM, "EWeekViewTitlesItem",
            &type_info, 0);
    }

    return type;
}

EWeekView *
e_week_view_titles_item_get_week_view (EWeekViewTitlesItem *titles_item)
{
    g_return_val_if_fail (E_IS_WEEK_VIEW_TITLES_ITEM (titles_item), NULL);

    return titles_item->priv->week_view;
}

void
e_week_view_titles_item_set_week_view (EWeekViewTitlesItem *titles_item,
                                       EWeekView *week_view)
{
    g_return_if_fail (E_IS_WEEK_VIEW_TITLES_ITEM (titles_item));
    g_return_if_fail (E_IS_WEEK_VIEW (week_view));

    if (titles_item->priv->week_view != NULL)
        g_object_unref (titles_item->priv->week_view);

    titles_item->priv->week_view = g_object_ref (week_view);

    g_object_notify (G_OBJECT (titles_item), "week-view");
}