1 /*
2 * Copyright (C) 2009 - 2011 Vivien Malerba <malerba@gnome-db.org>
3 * Copyright (C) 2010 David King <davidk@openismus.com>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21 #include <glib/gi18n-lib.h>
22 #include "gdaui-entry-number.h"
23 #include "gdaui-numeric-entry.h"
24 #include <libgda/gda-data-handler.h>
25 #include "gdk/gdkkeysyms.h"
26 #include <libgda/gda-debug-macros.h>
27
28 /*
29 * Main static functions
30 */
31 static void gdaui_entry_number_class_init (GdauiEntryNumberClass *klass);
32 static void gdaui_entry_number_init (GdauiEntryNumber *srv);
33 static void gdaui_entry_number_dispose (GObject *object);
34 static void gdaui_entry_number_finalize (GObject *object);
35
36 static void gdaui_entry_number_set_property (GObject *object,
37 guint param_id,
38 const GValue *value,
39 GParamSpec *pspec);
40 static void gdaui_entry_number_get_property (GObject *object,
41 guint param_id,
42 GValue *value,
43 GParamSpec *pspec);
44
45 /* properties */
46 enum
47 {
48 PROP_0,
49 PROP_EDITING_CANCELED,
50 PROP_OPTIONS
51 };
52
53 /* GtkCellEditable interface */
54 static void gdaui_entry_number_cell_editable_init (GtkCellEditableIface *iface);
55 static void gdaui_entry_number_start_editing (GtkCellEditable *iface, GdkEvent *event);
56 static void sync_entry_options (GdauiEntryNumber *mgstr);
57
58 /* virtual functions */
59 static GtkWidget *create_entry (GdauiEntryWrapper *mgwrap);
60 static void real_set_value (GdauiEntryWrapper *mgwrap, const GValue *value);
61 static GValue *real_get_value (GdauiEntryWrapper *mgwrap);
62 static void connect_signals(GdauiEntryWrapper *mgwrap, GCallback modify_cb, GCallback activate_cb);
63 static void set_editable (GdauiEntryWrapper *mgwrap, gboolean editable);
64 static void grab_focus (GdauiEntryWrapper *mgwrap);
65
66 /* options */
67 static void set_entry_options (GdauiEntryNumber *mgstr, const gchar *options);
68
69 /* get a pointer to the parents to be able to call their destructor */
70 static GObjectClass *parent_class = NULL;
71
72 /* private structure */
73 struct _GdauiEntryNumberPrivate
74 {
75 GtkWidget *entry;
76 gboolean editing_canceled;
77
78 guchar thousand_sep;
79 guint16 nb_decimals;
80 gchar *currency;
81
82 gulong entry_change_sig;
83 };
84
85 static void
gdaui_entry_number_cell_editable_init(GtkCellEditableIface * iface)86 gdaui_entry_number_cell_editable_init (GtkCellEditableIface *iface)
87 {
88 iface->start_editing = gdaui_entry_number_start_editing;
89 }
90
91 GType
gdaui_entry_number_get_type(void)92 gdaui_entry_number_get_type (void)
93 {
94 static GType type = 0;
95
96 if (G_UNLIKELY (type == 0)) {
97 static const GTypeInfo info = {
98 sizeof (GdauiEntryNumberClass),
99 (GBaseInitFunc) NULL,
100 (GBaseFinalizeFunc) NULL,
101 (GClassInitFunc) gdaui_entry_number_class_init,
102 NULL,
103 NULL,
104 sizeof (GdauiEntryNumber),
105 0,
106 (GInstanceInitFunc) gdaui_entry_number_init,
107 0
108 };
109
110 static const GInterfaceInfo cell_editable_info = {
111 (GInterfaceInitFunc) gdaui_entry_number_cell_editable_init, /* interface_init */
112 NULL, /* interface_finalize */
113 NULL /* interface_data */
114 };
115
116 type = g_type_register_static (GDAUI_TYPE_ENTRY_WRAPPER, "GdauiEntryNumber", &info, 0);
117 g_type_add_interface_static (type, GTK_TYPE_CELL_EDITABLE, &cell_editable_info);
118 }
119 return type;
120 }
121
122 static void
gdaui_entry_number_class_init(GdauiEntryNumberClass * klass)123 gdaui_entry_number_class_init (GdauiEntryNumberClass * klass)
124 {
125 GObjectClass *object_class = G_OBJECT_CLASS (klass);
126
127 parent_class = g_type_class_peek_parent (klass);
128
129 object_class->dispose = gdaui_entry_number_dispose;
130 object_class->finalize = gdaui_entry_number_finalize;
131
132 GDAUI_ENTRY_WRAPPER_CLASS (klass)->create_entry = create_entry;
133 GDAUI_ENTRY_WRAPPER_CLASS (klass)->real_set_value = real_set_value;
134 GDAUI_ENTRY_WRAPPER_CLASS (klass)->real_get_value = real_get_value;
135 GDAUI_ENTRY_WRAPPER_CLASS (klass)->connect_signals = connect_signals;
136 GDAUI_ENTRY_WRAPPER_CLASS (klass)->set_editable = set_editable;
137 GDAUI_ENTRY_WRAPPER_CLASS (klass)->grab_focus = grab_focus;
138
139 /* Properties */
140 object_class->set_property = gdaui_entry_number_set_property;
141 object_class->get_property = gdaui_entry_number_get_property;
142
143 g_object_class_install_property (object_class, PROP_EDITING_CANCELED,
144 g_param_spec_boolean ("editing-canceled", NULL, NULL, FALSE,
145 G_PARAM_READABLE | G_PARAM_WRITABLE));
146 g_object_class_install_property (object_class, PROP_OPTIONS,
147 g_param_spec_string ("options", NULL, NULL, NULL, G_PARAM_WRITABLE));
148 }
149
150 static gboolean
key_press_event_cb(GdauiEntryNumber * mgstr,GdkEventKey * key_event,G_GNUC_UNUSED gpointer data)151 key_press_event_cb (GdauiEntryNumber *mgstr, GdkEventKey *key_event, G_GNUC_UNUSED gpointer data)
152 {
153 if (key_event->keyval == GDK_KEY_Escape)
154 mgstr->priv->editing_canceled = TRUE;
155 return FALSE;
156 }
157
158 static void
gdaui_entry_number_init(GdauiEntryNumber * mgstr)159 gdaui_entry_number_init (GdauiEntryNumber *mgstr)
160 {
161 mgstr->priv = g_new0 (GdauiEntryNumberPrivate, 1);
162 mgstr->priv->entry = NULL;
163
164 mgstr->priv->thousand_sep = 0;
165 mgstr->priv->nb_decimals = G_MAXUINT16; /* unlimited number of decimals */
166 mgstr->priv->currency = NULL;
167
168 mgstr->priv->entry_change_sig = 0;
169
170 g_signal_connect (mgstr, "key-press-event",
171 G_CALLBACK (key_press_event_cb), NULL);
172 }
173
174 gboolean
gdaui_entry_number_is_type_numeric(GType type)175 gdaui_entry_number_is_type_numeric (GType type)
176 {
177 if ((type == G_TYPE_INT64) || (type == G_TYPE_UINT64) || (type == G_TYPE_DOUBLE) ||
178 (type == G_TYPE_INT) || (type == GDA_TYPE_NUMERIC) || (type == G_TYPE_FLOAT) ||
179 (type == GDA_TYPE_SHORT) || (type == GDA_TYPE_USHORT) || (type == G_TYPE_CHAR) ||
180 (type == G_TYPE_UCHAR) || (type == G_TYPE_LONG) || (type == G_TYPE_ULONG) || (type == G_TYPE_UINT))
181 return TRUE;
182 else
183 return FALSE;
184 }
185
186 /**
187 * gdaui_entry_number_new:
188 * @dh: the data handler to be used by the new widget
189 * @type: the requested data type (compatible with @dh)
190 *
191 * Creates a new data entry widget
192 *
193 * Returns: (transfer full): the new widget
194 */
195 GtkWidget *
gdaui_entry_number_new(GdaDataHandler * dh,GType type,const gchar * options)196 gdaui_entry_number_new (GdaDataHandler *dh, GType type, const gchar *options)
197 {
198 GObject *obj;
199 GdauiEntryNumber *mgstr;
200
201 g_return_val_if_fail (GDA_IS_DATA_HANDLER (dh), NULL);
202 g_return_val_if_fail (gda_data_handler_accepts_g_type (dh, type), NULL);
203 g_return_val_if_fail (gdaui_entry_number_is_type_numeric (type), NULL);
204
205 obj = g_object_new (GDAUI_TYPE_ENTRY_NUMBER, "handler", dh, NULL);
206 mgstr = GDAUI_ENTRY_NUMBER (obj);
207 gdaui_data_entry_set_value_type (GDAUI_DATA_ENTRY (mgstr), type);
208
209 g_object_set (obj, "options", options, NULL);
210
211 return GTK_WIDGET (obj);
212 }
213
214 static void
gdaui_entry_number_dispose(GObject * object)215 gdaui_entry_number_dispose (GObject * object)
216 {
217 GdauiEntryNumber *mgstr;
218
219 g_return_if_fail (object != NULL);
220 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (object));
221
222 mgstr = GDAUI_ENTRY_NUMBER (object);
223 if (mgstr->priv) {
224 if (mgstr->priv->entry)
225 mgstr->priv->entry = NULL;
226 }
227
228 /* parent class */
229 parent_class->dispose (object);
230 }
231
232 static void
gdaui_entry_number_finalize(GObject * object)233 gdaui_entry_number_finalize (GObject * object)
234 {
235 GdauiEntryNumber *mgstr;
236
237 g_return_if_fail (object != NULL);
238 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (object));
239
240 mgstr = GDAUI_ENTRY_NUMBER (object);
241 if (mgstr->priv) {
242 g_free (mgstr->priv->currency);
243 g_free (mgstr->priv);
244 mgstr->priv = NULL;
245 }
246
247 /* parent class */
248 parent_class->finalize (object);
249 }
250
251 static void
gdaui_entry_number_set_property(GObject * object,guint param_id,const GValue * value,GParamSpec * pspec)252 gdaui_entry_number_set_property (GObject *object,
253 guint param_id,
254 const GValue *value,
255 GParamSpec *pspec)
256 {
257 GdauiEntryNumber *mgstr;
258
259 mgstr = GDAUI_ENTRY_NUMBER (object);
260 if (mgstr->priv) {
261 switch (param_id) {
262 case PROP_OPTIONS:
263 set_entry_options (mgstr, g_value_get_string (value));
264 break;
265 case PROP_EDITING_CANCELED:
266 TO_IMPLEMENT;
267 break;
268 default:
269 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
270 break;
271 }
272 }
273 }
274
275 static void
gdaui_entry_number_get_property(GObject * object,guint param_id,GValue * value,GParamSpec * pspec)276 gdaui_entry_number_get_property (GObject *object,
277 guint param_id,
278 GValue *value,
279 GParamSpec *pspec)
280 {
281 GdauiEntryNumber *mgstr;
282
283 mgstr = GDAUI_ENTRY_NUMBER (object);
284 if (mgstr->priv) {
285 switch (param_id) {
286 case PROP_EDITING_CANCELED:
287 g_value_set_boolean (value, mgstr->priv->editing_canceled);
288 break;
289 default:
290 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
291 break;
292 }
293 }
294 }
295
296 static GtkWidget *
create_entry(GdauiEntryWrapper * mgwrap)297 create_entry (GdauiEntryWrapper *mgwrap)
298 {
299 GdauiEntryNumber *mgstr;
300
301 g_return_val_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap), NULL);
302 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
303
304 mgstr->priv->entry = gdaui_numeric_entry_new (gdaui_data_entry_get_value_type (GDAUI_DATA_ENTRY (mgwrap)));
305 sync_entry_options (mgstr);
306
307 return mgstr->priv->entry;
308 }
309
310 static void
real_set_value(GdauiEntryWrapper * mgwrap,const GValue * value)311 real_set_value (GdauiEntryWrapper *mgwrap, const GValue *value)
312 {
313 GdauiEntryNumber *mgstr;
314 GdaDataHandler *dh;
315 gchar *text;
316
317 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap));
318 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
319
320 dh = gdaui_data_entry_get_handler (GDAUI_DATA_ENTRY (mgwrap));
321
322 text = gda_data_handler_get_str_from_value (dh, value);
323 if (value) {
324 if (gda_value_is_null ((GValue *) value))
325 gdaui_entry_set_text (GDAUI_ENTRY (mgstr->priv->entry), NULL);
326 else
327 gdaui_entry_set_text (GDAUI_ENTRY (mgstr->priv->entry), text);
328 }
329 else
330 gdaui_entry_set_text (GDAUI_ENTRY (mgstr->priv->entry), NULL);
331
332 g_free (text);
333 }
334
335 static GValue *
real_get_value(GdauiEntryWrapper * mgwrap)336 real_get_value (GdauiEntryWrapper *mgwrap)
337 {
338 GValue *value;
339 GdauiEntryNumber *mgstr;
340
341 g_return_val_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap), NULL);
342 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
343 g_return_val_if_fail (mgstr->priv, NULL);
344
345 value = gdaui_numeric_entry_get_value (GDAUI_NUMERIC_ENTRY (mgstr->priv->entry));
346
347 if (!value) {
348 /* in case the contents of the GtkEntry cannot be interpreted as a GValue */
349 value = gda_value_new_null ();
350 }
351
352 return value;
353 }
354
355 static void
connect_signals(GdauiEntryWrapper * mgwrap,GCallback modify_cb,GCallback activate_cb)356 connect_signals (GdauiEntryWrapper *mgwrap, GCallback modify_cb, GCallback activate_cb)
357 {
358 GdauiEntryNumber *mgstr;
359
360 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap));
361 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
362 g_return_if_fail (mgstr->priv);
363
364 mgstr->priv->entry_change_sig = g_signal_connect (G_OBJECT (mgstr->priv->entry), "changed",
365 modify_cb, mgwrap);
366 g_signal_connect (G_OBJECT (mgstr->priv->entry), "activate",
367 activate_cb, mgwrap);
368 }
369
370 static void
set_editable(GdauiEntryWrapper * mgwrap,gboolean editable)371 set_editable (GdauiEntryWrapper *mgwrap, gboolean editable)
372 {
373 GdauiEntryNumber *mgstr;
374
375 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap));
376 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
377
378 gtk_editable_set_editable (GTK_EDITABLE (mgstr->priv->entry), editable);
379 }
380
381 static void
grab_focus(GdauiEntryWrapper * mgwrap)382 grab_focus (GdauiEntryWrapper *mgwrap)
383 {
384 GdauiEntryNumber *mgstr;
385
386 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (mgwrap));
387 mgstr = GDAUI_ENTRY_NUMBER (mgwrap);
388
389 gtk_widget_grab_focus (mgstr->priv->entry);
390 }
391
392 /*
393 * GtkCellEditable interface
394 */
395 static void
gtk_cell_editable_entry_editing_done_cb(G_GNUC_UNUSED GtkEntry * entry,GdauiEntryNumber * mgstr)396 gtk_cell_editable_entry_editing_done_cb (G_GNUC_UNUSED GtkEntry *entry, GdauiEntryNumber *mgstr)
397 {
398 gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (mgstr));
399 }
400
401 static void
gtk_cell_editable_entry_remove_widget_cb(G_GNUC_UNUSED GtkEntry * entry,GdauiEntryNumber * mgstr)402 gtk_cell_editable_entry_remove_widget_cb (G_GNUC_UNUSED GtkEntry *entry, GdauiEntryNumber *mgstr)
403 {
404 gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (mgstr));
405 }
406
407 static void
gdaui_entry_number_start_editing(GtkCellEditable * iface,GdkEvent * event)408 gdaui_entry_number_start_editing (GtkCellEditable *iface, GdkEvent *event)
409 {
410 GdauiEntryNumber *mgstr;
411
412 g_return_if_fail (GDAUI_IS_ENTRY_NUMBER (iface));
413 mgstr = GDAUI_ENTRY_NUMBER (iface);
414
415 mgstr->priv->editing_canceled = FALSE;
416 g_object_set (G_OBJECT (mgstr->priv->entry), "has-frame", FALSE, "xalign", 0., NULL);
417
418 gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (mgstr->priv->entry), event);
419 g_signal_connect (G_OBJECT (mgstr->priv->entry), "editing-done",
420 G_CALLBACK (gtk_cell_editable_entry_editing_done_cb), mgstr);
421 g_signal_connect (G_OBJECT (mgstr->priv->entry), "remove-widget",
422 G_CALLBACK (gtk_cell_editable_entry_remove_widget_cb), mgstr);
423 gdaui_entry_shell_refresh (GDAUI_ENTRY_SHELL (mgstr));
424
425 gtk_widget_grab_focus (mgstr->priv->entry);
426 gtk_widget_queue_draw (GTK_WIDGET (mgstr));
427 }
428
429 /*
430 * Options handling
431 */
432
433 static guchar
get_default_thousands_sep()434 get_default_thousands_sep ()
435 {
436 static guchar value = 255;
437
438 if (value == 255) {
439 gchar text[20];
440 sprintf (text, "%'f", 1234.);
441 if (text[1] == '2')
442 value = ' ';
443 else
444 value = text[1];
445 }
446 return value;
447 }
448
449 static void
set_entry_options(GdauiEntryNumber * mgstr,const gchar * options)450 set_entry_options (GdauiEntryNumber *mgstr, const gchar *options)
451 {
452 g_assert (mgstr->priv);
453
454 if (options && *options) {
455 GdaQuarkList *params;
456 const gchar *str;
457
458 params = gda_quark_list_new_from_string (options);
459
460 str = gda_quark_list_find (params, "THOUSAND_SEP");
461 if (str) {
462 if ((*str == 't') || (*str == 'T'))
463 mgstr->priv->thousand_sep = get_default_thousands_sep ();
464 else
465 mgstr->priv->thousand_sep = 0;
466 }
467 str = gda_quark_list_find (params, "NB_DECIMALS");
468 if (str) {
469 if (*str)
470 mgstr->priv->nb_decimals = atoi (str);
471 else
472 mgstr->priv->nb_decimals = 0;
473 }
474 str = gda_quark_list_find (params, "CURRENCY");
475 if (str && *str) {
476 g_free (mgstr->priv->currency);
477 mgstr->priv->currency = g_strdup_printf ("%s ", str);
478 }
479 gda_quark_list_free (params);
480 sync_entry_options (mgstr);
481 }
482 }
483
484 /* sets the correct options for mgstr->priv->entry if it exists */
485 static void
sync_entry_options(GdauiEntryNumber * mgstr)486 sync_entry_options (GdauiEntryNumber *mgstr)
487 {
488 if (!mgstr->priv->entry)
489 return;
490
491 g_object_set (G_OBJECT (mgstr->priv->entry),
492 "type", gdaui_data_entry_get_value_type (GDAUI_DATA_ENTRY (mgstr)),
493 "n-decimals", mgstr->priv->nb_decimals,
494 "thousands-sep", mgstr->priv->thousand_sep,
495 "prefix", mgstr->priv->currency,
496 NULL);
497 g_signal_emit_by_name (mgstr->priv->entry, "changed");
498 }
499