1 /*
2 * EWeekViewTitlesItem - displays the 'Monday', 'Tuesday' etc. at the top of
3 * the Month calendar view.
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 <e-util/e-util.h>
27 #include "e-week-view-titles-item.h"
28
29 #define E_WEEK_VIEW_TITLES_ITEM_GET_PRIVATE(obj) \
30 (G_TYPE_INSTANCE_GET_PRIVATE \
31 ((obj), E_TYPE_WEEK_VIEW_TITLES_ITEM, EWeekViewTitlesItemPrivate))
32
33 struct _EWeekViewTitlesItemPrivate {
34 EWeekView *week_view;
35 };
36
37 enum {
38 PROP_0,
39 PROP_WEEK_VIEW
40 };
41
G_DEFINE_TYPE(EWeekViewTitlesItem,e_week_view_titles_item,GNOME_TYPE_CANVAS_ITEM)42 G_DEFINE_TYPE (
43 EWeekViewTitlesItem,
44 e_week_view_titles_item,
45 GNOME_TYPE_CANVAS_ITEM)
46
47 static void
48 week_view_titles_item_set_property (GObject *object,
49 guint property_id,
50 const GValue *value,
51 GParamSpec *pspec)
52 {
53 switch (property_id) {
54 case PROP_WEEK_VIEW:
55 e_week_view_titles_item_set_week_view (
56 E_WEEK_VIEW_TITLES_ITEM (object),
57 g_value_get_object (value));
58 return;
59 }
60
61 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
62 }
63
64 static void
week_view_titles_item_get_property(GObject * object,guint property_id,GValue * value,GParamSpec * pspec)65 week_view_titles_item_get_property (GObject *object,
66 guint property_id,
67 GValue *value,
68 GParamSpec *pspec)
69 {
70 switch (property_id) {
71 case PROP_WEEK_VIEW:
72 g_value_set_object (
73 value,
74 e_week_view_titles_item_get_week_view (
75 E_WEEK_VIEW_TITLES_ITEM (object)));
76 return;
77 }
78
79 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
80 }
81
82 static void
week_view_titles_item_dispose(GObject * object)83 week_view_titles_item_dispose (GObject *object)
84 {
85 EWeekViewTitlesItemPrivate *priv;
86
87 priv = E_WEEK_VIEW_TITLES_ITEM_GET_PRIVATE (object);
88 g_clear_object (&priv->week_view);
89
90 /* Chain up to parent's dispose() method. */
91 G_OBJECT_CLASS (e_week_view_titles_item_parent_class)->dispose (object);
92 }
93
94 static void
week_view_titles_item_update(GnomeCanvasItem * item,const cairo_matrix_t * i2c,gint flags)95 week_view_titles_item_update (GnomeCanvasItem *item,
96 const cairo_matrix_t *i2c,
97 gint flags)
98 {
99 GnomeCanvasItemClass *canvas_item_class;
100
101 /* Chain up to parent's update() method. */
102 canvas_item_class =
103 GNOME_CANVAS_ITEM_CLASS (e_week_view_titles_item_parent_class);
104 canvas_item_class->update (item, i2c, flags);
105
106 /* The item covers the entire canvas area. */
107 item->x1 = 0;
108 item->y1 = 0;
109 item->x2 = INT_MAX;
110 item->y2 = INT_MAX;
111 }
112
113 static void
week_view_titles_item_draw(GnomeCanvasItem * canvas_item,cairo_t * cr,gint x,gint y,gint width,gint height)114 week_view_titles_item_draw (GnomeCanvasItem *canvas_item,
115 cairo_t *cr,
116 gint x,
117 gint y,
118 gint width,
119 gint height)
120 {
121 EWeekViewTitlesItem *titles_item;
122 EWeekView *week_view;
123 GdkRGBA bg_bg, light_bg, dark_bg, fg;
124 gint col_width, col, date_width, date_x;
125 gchar buffer[128];
126 GtkAllocation allocation;
127 gboolean abbreviated;
128 gboolean compress_weekend;
129 GDateWeekday weekday;
130 PangoLayout *layout;
131
132 titles_item = E_WEEK_VIEW_TITLES_ITEM (canvas_item);
133 week_view = e_week_view_titles_item_get_week_view (titles_item);
134 g_return_if_fail (week_view != NULL);
135
136 compress_weekend = e_week_view_get_compress_weekend (week_view);
137
138 cairo_save (cr);
139 cairo_set_line_width (cr, 1.0);
140
141 gtk_widget_get_allocation (
142 GTK_WIDGET (canvas_item->canvas), &allocation);
143
144 e_utils_get_theme_color (GTK_WIDGET (week_view), "theme_bg_color", E_UTILS_DEFAULT_THEME_BG_COLOR, &bg_bg);
145 e_utils_get_theme_color (GTK_WIDGET (week_view), "theme_fg_color", E_UTILS_DEFAULT_THEME_FG_COLOR, &fg);
146 e_utils_shade_color (&bg_bg, &dark_bg, E_UTILS_DARKNESS_MULT);
147 e_utils_shade_color (&bg_bg, &light_bg, E_UTILS_LIGHTNESS_MULT);
148
149 layout = gtk_widget_create_pango_layout (GTK_WIDGET (week_view), NULL);
150
151 /* Draw the shadow around the dates. */
152 gdk_cairo_set_source_rgba (cr, &light_bg);
153 cairo_move_to (cr, 1.5 - x, 1.5 - y);
154 cairo_rel_line_to (cr, allocation.width - 1, 0);
155 cairo_move_to (cr, 1.5 - x, 2.5 - y);
156 cairo_rel_line_to (cr, 0, allocation.height - 1);
157 cairo_stroke (cr);
158
159 gdk_cairo_set_source_rgba (cr, &dark_bg);
160 cairo_rectangle (cr, 0.5 - x, 0.5 - y, allocation.width - 1, allocation.height);
161 cairo_stroke (cr);
162
163 /* Determine the format to use. */
164 col_width = allocation.width / week_view->columns;
165 abbreviated = (week_view->max_day_width + 2 >= col_width);
166
167 /* Shift right one pixel to account for the shadow around the main
168 * canvas. */
169 x--;
170
171 /* Draw the date. Set a clipping rectangle so we don't draw over the
172 * next day. */
173 weekday = e_week_view_get_display_start_day (week_view);
174 for (col = 0; col < week_view->columns; col++) {
175 if (weekday == G_DATE_SATURDAY && compress_weekend)
176 g_snprintf (
177 buffer, sizeof (buffer), "%s/%s",
178 e_get_weekday_name (G_DATE_SATURDAY, TRUE),
179 e_get_weekday_name (G_DATE_SUNDAY, TRUE));
180 else
181 g_snprintf (
182 buffer, sizeof (buffer), "%s",
183 e_get_weekday_name (weekday, abbreviated));
184
185 cairo_save (cr);
186
187 cairo_rectangle (
188 cr,
189 week_view->col_offsets[col] - x, 2 - y,
190 week_view->col_widths[col], allocation.height - 2);
191 cairo_clip (cr);
192
193 if (weekday == G_DATE_SATURDAY && compress_weekend)
194 date_width = week_view->abbr_day_widths[5]
195 + week_view->slash_width
196 + week_view->abbr_day_widths[6];
197 else if (abbreviated)
198 date_width = week_view->abbr_day_widths[weekday - 1];
199 else
200 date_width = week_view->day_widths[weekday - 1];
201
202 date_x = week_view->col_offsets[col]
203 + (week_view->col_widths[col] - date_width) / 2;
204 date_x = MAX (date_x, week_view->col_offsets[col]);
205
206 gdk_cairo_set_source_rgba (cr, &fg);
207 pango_layout_set_text (layout, buffer, -1);
208 cairo_move_to (cr, date_x - x, 3 - y);
209 pango_cairo_show_layout (cr, layout);
210
211 cairo_restore (cr);
212
213 /* Draw the lines down the left and right of the date cols. */
214 if (col != 0) {
215 gdk_cairo_set_source_rgba (cr, &light_bg);
216 cairo_move_to (cr, week_view->col_offsets[col] - x + 0.5, 4.5 - y);
217 cairo_rel_line_to (cr, 0, allocation.height - 8);
218 cairo_stroke (cr);
219
220 gdk_cairo_set_source_rgba (cr, &dark_bg);
221 cairo_move_to (cr, week_view->col_offsets[col] - x - 0.5, 4.5 - y);
222 cairo_rel_line_to (cr, 0, allocation.height - 8);
223 cairo_stroke (cr);
224 }
225
226 /* Draw the lines between each column. */
227 if (col != 0) {
228 cairo_set_source_rgb (cr, 0, 0, 0);
229 cairo_rectangle (
230 cr, week_view->col_offsets[col] - x,
231 allocation.height - y, 1, 1);
232 cairo_fill (cr);
233 }
234
235 weekday = e_weekday_get_next (weekday);
236 if (weekday == G_DATE_SUNDAY && compress_weekend)
237 weekday = e_weekday_get_next (weekday);
238 }
239
240 g_object_unref (layout);
241 cairo_restore (cr);
242 }
243
244 static GnomeCanvasItem *
week_view_titles_item_point(GnomeCanvasItem * item,gdouble x,gdouble y,gint cx,gint cy)245 week_view_titles_item_point (GnomeCanvasItem *item,
246 gdouble x,
247 gdouble y,
248 gint cx,
249 gint cy)
250 {
251 return item;
252 }
253
254 static void
e_week_view_titles_item_class_init(EWeekViewTitlesItemClass * class)255 e_week_view_titles_item_class_init (EWeekViewTitlesItemClass *class)
256 {
257 GObjectClass *object_class;
258 GnomeCanvasItemClass *item_class;
259
260 g_type_class_add_private (class, sizeof (EWeekViewTitlesItemPrivate));
261
262 object_class = G_OBJECT_CLASS (class);
263 object_class->set_property = week_view_titles_item_set_property;
264 object_class->get_property = week_view_titles_item_get_property;
265 object_class->dispose = week_view_titles_item_dispose;
266
267 item_class = GNOME_CANVAS_ITEM_CLASS (class);
268 item_class->update = week_view_titles_item_update;
269 item_class->draw = week_view_titles_item_draw;
270 item_class->point = week_view_titles_item_point;
271
272 g_object_class_install_property (
273 object_class,
274 PROP_WEEK_VIEW,
275 g_param_spec_object (
276 "week-view",
277 "Week View",
278 NULL,
279 E_TYPE_WEEK_VIEW,
280 G_PARAM_READWRITE));
281 }
282
283 static void
e_week_view_titles_item_init(EWeekViewTitlesItem * titles_item)284 e_week_view_titles_item_init (EWeekViewTitlesItem *titles_item)
285 {
286 titles_item->priv = E_WEEK_VIEW_TITLES_ITEM_GET_PRIVATE (titles_item);
287 }
288
289 EWeekView *
e_week_view_titles_item_get_week_view(EWeekViewTitlesItem * titles_item)290 e_week_view_titles_item_get_week_view (EWeekViewTitlesItem *titles_item)
291 {
292 g_return_val_if_fail (E_IS_WEEK_VIEW_TITLES_ITEM (titles_item), NULL);
293
294 return titles_item->priv->week_view;
295 }
296
297 void
e_week_view_titles_item_set_week_view(EWeekViewTitlesItem * titles_item,EWeekView * week_view)298 e_week_view_titles_item_set_week_view (EWeekViewTitlesItem *titles_item,
299 EWeekView *week_view)
300 {
301 g_return_if_fail (E_IS_WEEK_VIEW_TITLES_ITEM (titles_item));
302 g_return_if_fail (E_IS_WEEK_VIEW (week_view));
303
304 if (titles_item->priv->week_view == week_view)
305 return;
306
307 if (titles_item->priv->week_view != NULL)
308 g_object_unref (titles_item->priv->week_view);
309
310 titles_item->priv->week_view = g_object_ref (week_view);
311
312 g_object_notify (G_OBJECT (titles_item), "week-view");
313 }
314