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[lttv.git] / ltt / branches / poly / lttv / modules / gui / filter / filter.c
1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2005 Simon Bouvier-Zappa
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
16 * MA 02111-1307, USA.
17 */
18
19 #ifdef HAVE_CONFIG_H
20 #include <config.h>
21 #endif
22
23 #include <glib.h>
24 #include <string.h>
25 #include <gtk/gtk.h>
26 #include <gdk/gdk.h>
27 #include <gdk/gdkkeysyms.h>
28
29 #include <lttv/lttv.h>
30 #include <lttv/module.h>
31 #include <lttv/hook.h>
32 #include <lttv/filter.h>
33
34 #include <lttvwindow/lttvwindow.h>
35 #include <lttvwindow/lttvwindowtraces.h>
36
37 #include "hGuiFilterInsert.xpm"
38
39
40 GSList *g_filter_list = NULL ;
41
42 /*! \file lttv/modules/gui/filter/filter.c
43 * \brief Graphic filter interface.
44 *
45 * The gui filter facility gives the user an easy to use
46 * basic interface to construct and modify at will a filter
47 * expression. User may either decide to write it himself in
48 * expression text entry or add simple expressions using the
49 * many choices boxes.
50 *
51 * \note The version of gtk-2.0 currently installed on
52 * my desktop misses some function of the newer
53 * gtk+ api. For the time being, I'll use the older api
54 * to keep compatibility with most systems.
55 */
56
57 typedef struct _FilterViewerData FilterViewerData;
58 typedef struct _FilterViewerDataLine FilterViewerDataLine;
59
60 /*
61 * Prototypes
62 */
63 GtkWidget *guifilter_get_widget(FilterViewerData *fvd);
64 FilterViewerData *gui_filter(Tab *tab);
65 void gui_filter_destructor(FilterViewerData *fvd);
66 FilterViewerDataLine* gui_filter_add_line(FilterViewerData *fvd);
67 void gui_filter_line_set_visible(FilterViewerDataLine *fvdl, gboolean v);
68 void gui_filter_line_reset(FilterViewerDataLine *fvdl);
69 GtkWidget* h_guifilter(Tab *tab);
70 void filter_destroy_walk(gpointer data, gpointer user_data);
71
72 /*
73 * Callback functions
74 */
75 void callback_process_button(GtkWidget *widget, gpointer data);
76 gboolean callback_enter_check(GtkWidget *widget,
77 GdkEventKey *event,
78 gpointer user_data);
79 void callback_add_button(GtkWidget *widget, gpointer data);
80 void callback_logical_op_box(GtkWidget *widget, gpointer data);
81 void callback_expression_field(GtkWidget *widget, gpointer data);
82
83 /**
84 * @struct _FilterViewerDataLine
85 *
86 * @brief Defines a simple expression
87 * This structures defines a simple
88 * expression whithin the main filter
89 * viewer data
90 */
91 struct _FilterViewerDataLine {
92 int row; /**< row number */
93 gboolean visible; /**< visible state */
94 GtkWidget *f_not_op_box; /**< '!' operator (GtkComboBox) */
95 GtkWidget *f_logical_op_box; /**< '&,|,^' operators (GtkComboBox) */
96 GtkWidget *f_field_box; /**< field types (GtkComboBox) */
97 GtkWidget *f_math_op_box; /**< '>,>=,<,<=,=,!=' operators (GtkComboBox) */
98 GtkWidget *f_value_field; /**< expression's value (GtkComboBox) */
99 };
100
101 /**
102 * @struct _FilterViewerData
103 *
104 * @brief Main structure of gui filter
105 * Main struct for the filter gui module
106 */
107 struct _FilterViewerData {
108 Tab *tab; /**< current tab of module */
109
110 GtkWidget *f_window; /**< filter window */
111
112 GtkWidget *f_main_box; /**< main container */
113
114 GtkWidget *f_expression_field; /**< entire expression (GtkEntry) */
115 GtkWidget *f_process_button; /**< process expression button (GtkButton) */
116
117 GtkWidget *f_logical_op_junction_box; /**< linking operator box (GtkComboBox) */
118
119 int rows; /**< number of rows */
120 GPtrArray *f_lines; /**< array of FilterViewerDataLine */
121
122 GPtrArray *f_not_op_options; /**< array of operators types for not_op box */
123 GPtrArray *f_logical_op_options; /**< array of operators types for logical_op box */
124 GPtrArray *f_field_options; /**< array of field types for field box */
125 GPtrArray *f_math_op_options; /**< array of operators types for math_op box */
126
127 GtkWidget *f_add_button; /**< add expression to current expression (GtkButton) */
128
129 };
130
131 /**
132 * @fn GtkWidget* guifilter_get_widget(FilterViewerData*)
133 *
134 * This function returns the current main widget
135 * used by this module
136 * @param fvd the module struct
137 * @return The main widget
138 */
139 GtkWidget*
140 guifilter_get_widget(FilterViewerData *fvd)
141 {
142 return fvd->f_window;
143 }
144
145 /**
146 * @fn FilterViewerData* gui_filter(Tab*)
147 *
148 * Constructor is used to create FilterViewerData data structure.
149 * @param tab The tab structure used by the widget
150 * @return The Filter viewer data created.
151 */
152 FilterViewerData*
153 gui_filter(Tab *tab)
154 {
155 g_debug("filter::gui_filter()");
156
157 unsigned i;
158 GtkCellRenderer *renderer;
159 GtkTreeViewColumn *column;
160
161 FilterViewerData* fvd = g_new(FilterViewerData,1);
162
163 fvd->tab = tab;
164
165 // lttvwindow_register_traceset_notify(fvd->tab,
166 // filter_traceset_changed,
167 // filter_viewer_data);
168 // request_background_data(filter_viewer_data);
169
170 /*
171 * Initiating items for
172 * combo boxes
173 */
174 fvd->f_not_op_options = g_ptr_array_new();
175 g_ptr_array_add(fvd->f_not_op_options,(gpointer) g_string_new(""));
176 g_ptr_array_add(fvd->f_not_op_options,(gpointer) g_string_new("!"));
177
178 fvd->f_logical_op_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,sizeof(gchar));
179 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new(""));
180 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("&"));
181 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("|"));
182 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("!"));
183 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("^"));
184
185 fvd->f_field_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,16);
186 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new(""));
187 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.name"));
188 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.facility"));
189 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.category"));
190 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.time"));
191 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.tsc"));
192 /*
193 * TODO: Add core.xml fields here !
194 */
195 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("tracefile.name"));
196 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("trace.name"));
197 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.process_name"));
198 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.pid"));
199 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.ppid"));
200 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.creation_time"));
201 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.insertion_time"));
202 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.execution_mode"));
203 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.execution_submode"));
204 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.process_status"));
205 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.cpu"));
206
207 fvd->f_math_op_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,7);
208 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new(""));
209 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("="));
210 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("!="));
211 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("<"));
212 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("<="));
213 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new(">"));
214 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new(">="));
215
216
217 fvd->f_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
218 gtk_window_set_title(GTK_WINDOW(fvd->f_window), "LTTV Filter");
219 gtk_window_set_transient_for(GTK_WINDOW(fvd->f_window),
220 GTK_WINDOW(main_window_get_widget(tab)));
221 gtk_window_set_destroy_with_parent(GTK_WINDOW(fvd->f_window), TRUE);
222
223 /*
224 * Initiating GtkTable layout
225 * starts with 2 rows and 5 columns and
226 * expands when expressions added
227 */
228 fvd->f_main_box = gtk_table_new(3,7,FALSE);
229 gtk_table_set_row_spacings(GTK_TABLE(fvd->f_main_box),5);
230 gtk_table_set_col_spacings(GTK_TABLE(fvd->f_main_box),5);
231
232 gtk_container_add(GTK_CONTAINER(fvd->f_window), GTK_WIDGET(fvd->f_main_box));
233
234 /*
235 * First half of the filter window
236 * - textual entry of filter expression
237 * - processing button
238 */
239 fvd->f_expression_field = gtk_entry_new(); //gtk_scrolled_window_new (NULL, NULL);
240 g_signal_connect (G_OBJECT(fvd->f_expression_field),
241 "key-press-event", G_CALLBACK (callback_enter_check), (gpointer)fvd);
242 // gtk_entry_set_text(GTK_ENTRY(fvd->f_expression_field),"state.cpu>0");
243 gtk_widget_show (fvd->f_expression_field);
244
245 g_signal_connect (G_OBJECT (fvd->f_expression_field), "changed",
246 G_CALLBACK (callback_expression_field), (gpointer) fvd);
247
248 fvd->f_process_button = gtk_button_new_with_label("Process");
249 gtk_widget_show (fvd->f_process_button);
250
251 g_signal_connect (G_OBJECT (fvd->f_process_button), "clicked",
252 G_CALLBACK (callback_process_button), (gpointer) fvd);
253
254 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_expression_field,0,6,0,1,GTK_FILL,GTK_FILL,0,0);
255 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_process_button,6,7,0,1,GTK_FILL,GTK_FILL,0,0);
256
257
258
259 /*
260 * Second half of the filter window
261 * - combo boxes featuring filtering options added to the expression
262 */
263 fvd->f_add_button = gtk_button_new_with_label("Add Expression");
264 gtk_widget_show (fvd->f_add_button);
265
266 g_signal_connect (G_OBJECT (fvd->f_add_button), "clicked",
267 G_CALLBACK (callback_add_button), (gpointer) fvd);
268
269 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_add_button,6,7,1,2,GTK_FILL,GTK_FILL,0,0);
270
271 fvd->f_logical_op_junction_box = gtk_combo_box_new_text();
272 for(i=0;i<fvd->f_logical_op_options->len;i++) {
273 GString* s = g_ptr_array_index(fvd->f_logical_op_options,i);
274 gtk_combo_box_append_text(GTK_COMBO_BOX(fvd->f_logical_op_junction_box), s->str);
275 }
276 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box),0);
277
278 //gtk_widget_show(fvd->f_logical_op_box);
279
280 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_logical_op_junction_box,0,1,1,2,GTK_SHRINK,GTK_FILL,0,0);
281
282 gtk_container_set_border_width(GTK_CONTAINER(fvd->f_main_box), 1);
283
284 /* initialize a new line */
285 fvd->f_lines = g_ptr_array_new();
286 fvd->rows = 1;
287 FilterViewerDataLine* fvdl = gui_filter_add_line(fvd);
288 g_ptr_array_add(fvd->f_lines,(gpointer) fvdl);
289
290 /*
291 * show main container
292 */
293 gtk_widget_show(fvd->f_main_box);
294 gtk_widget_show(fvd->f_window);
295
296
297 g_object_set_data_full(
298 G_OBJECT(guifilter_get_widget(fvd)),
299 "filter_viewer_data",
300 fvd,
301 (GDestroyNotify)gui_filter_destructor);
302
303 g_filter_list = g_slist_append(
304 g_filter_list,
305 fvd);
306
307 return fvd;
308 }
309
310 /**
311 * @fn FilterViewerDataLine* gui_filter_add_line(FilterViewerData*)
312 *
313 * Adds a filter option line on the module tab
314 * @param fvd The filter module structure
315 * @return The line structure
316 */
317 FilterViewerDataLine*
318 gui_filter_add_line(FilterViewerData* fvd) {
319
320 FilterViewerDataLine* fvdl = g_new(FilterViewerDataLine,1);
321
322 unsigned i;
323 fvdl->row = fvd->rows;
324 fvdl->visible = TRUE;
325
326 fvdl->f_not_op_box = gtk_combo_box_new_text();
327 for(i=0;i<fvd->f_not_op_options->len;i++) {
328 GString* s = g_ptr_array_index(fvd->f_not_op_options,i);
329 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_not_op_box), s->str);
330 }
331
332 fvdl->f_field_box = gtk_combo_box_new_text();
333 for(i=0;i<fvd->f_field_options->len;i++) {
334 GString* s = g_ptr_array_index(fvd->f_field_options,i);
335 // g_print("String field: %s\n",s->str);
336 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_field_box), s->str);
337 }
338
339 fvdl->f_math_op_box = gtk_combo_box_new_text();
340 for(i=0;i<fvd->f_math_op_options->len;i++) {
341 GString* s = g_ptr_array_index(fvd->f_math_op_options,i);
342 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_math_op_box), s->str);
343 }
344
345 fvdl->f_value_field = gtk_entry_new();
346
347 fvdl->f_logical_op_box = gtk_combo_box_new_text();
348 for(i=0;i<fvd->f_logical_op_options->len;i++) {
349 GString* s = g_ptr_array_index(fvd->f_logical_op_options,i);
350 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_logical_op_box), s->str);
351 }
352 gtk_widget_set_events(fvdl->f_logical_op_box,
353 GDK_ENTER_NOTIFY_MASK |
354 GDK_LEAVE_NOTIFY_MASK |
355 GDK_FOCUS_CHANGE_MASK);
356
357 g_signal_connect (G_OBJECT (fvdl->f_logical_op_box), "changed",
358 G_CALLBACK (callback_logical_op_box), (gpointer) fvd);
359
360 gui_filter_line_reset(fvdl);
361 gui_filter_line_set_visible(fvdl,TRUE);
362
363 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvdl->f_not_op_box,0,1,fvd->rows+1,fvd->rows+2,GTK_SHRINK,GTK_FILL,0,0);
364 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvdl->f_field_box,1,3,fvd->rows+1,fvd->rows+2,GTK_SHRINK,GTK_FILL,0,0);
365 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvdl->f_math_op_box,3,4,fvd->rows+1,fvd->rows+2,GTK_SHRINK,GTK_FILL,0,0);
366 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvdl->f_value_field,4,5,fvd->rows+1,fvd->rows+2,GTK_SHRINK,GTK_FILL,0,0);
367 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvdl->f_logical_op_box,5,6,fvd->rows+1,fvd->rows+2,GTK_SHRINK,GTK_FILL,0,0);
368
369 return fvdl;
370 }
371
372 /**
373 * @fn void gui_filter_line_set_visible(FilterViewerDataLine*,gboolean)
374 *
375 * Change visible state of current FilterViewerDataLine
376 * @param fvdl pointer to the current FilterViewerDataLine
377 * @param v TRUE: sets visible, FALSE: sets invisible
378 */
379 void
380 gui_filter_line_set_visible(FilterViewerDataLine *fvdl, gboolean v) {
381
382 fvdl->visible = v;
383 if(v) {
384 gtk_widget_show(fvdl->f_not_op_box);
385 gtk_widget_show(fvdl->f_field_box);
386 gtk_widget_show(fvdl->f_math_op_box);
387 gtk_widget_show(fvdl->f_value_field);
388 gtk_widget_show(fvdl->f_logical_op_box);
389 } else {
390 gtk_widget_hide(fvdl->f_not_op_box);
391 gtk_widget_hide(fvdl->f_field_box);
392 gtk_widget_hide(fvdl->f_math_op_box);
393 gtk_widget_hide(fvdl->f_value_field);
394 gtk_widget_hide(fvdl->f_logical_op_box);
395 }
396
397 }
398
399 /**
400 * @fn void gui_filter_line_reset(FilterViewerDataLine*)
401 *
402 * Sets selections of all boxes in current FilterViewerDataLine
403 * to default value (0)
404 * @param fvdl pointer to current FilterViewerDataLine
405 */
406 void
407 gui_filter_line_reset(FilterViewerDataLine *fvdl) {
408
409 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_not_op_box),0);
410 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_field_box),0);
411 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_math_op_box),0);
412 gtk_entry_set_text(GTK_ENTRY(fvdl->f_value_field),"");
413 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_logical_op_box),0);
414 }
415
416 /**
417 * @fn void gui_filter_destructor(FilterViewerData*)
418 *
419 * Destructor for the filter gui module
420 * @param fvd The module structure
421 */
422 void
423 gui_filter_destructor(FilterViewerData *fvd)
424 {
425 Tab *tab = fvd->tab;
426
427 /* May already been done by GTK window closing */
428 if(GTK_IS_WIDGET(guifilter_get_widget(fvd))){
429 g_info("widget still exists");
430 }
431 // if(tab != NULL) {
432 // lttvwindow_unregister_traceset_notify(fvd->tab,
433 // filter_traceset_changed,
434 // filter_viewer_data);
435 // }
436 lttvwindowtraces_background_notify_remove(fvd);
437
438 g_filter_list = g_slist_remove(g_filter_list, fvd);
439
440 g_free(fvd);
441 }
442
443
444 /**
445 * @fn GtkWidget* h_guifilter(Tab*)
446 *
447 * Filter Module's constructor hook
448 *
449 * This constructor is given as a parameter to the menuitem and toolbar button
450 * registration. It creates the list.
451 * @param tab A pointer to the parent window.
452 * @return The widget created.
453 */
454 GtkWidget *
455 h_guifilter(Tab *tab)
456 {
457 FilterViewerData* f = gui_filter(tab) ;
458
459 return NULL;
460 }
461
462 /**
463 * @fn static void init()
464 *
465 * This function initializes the Filter Viewer functionnality through the
466 * gtkTraceSet API.
467 */
468 static void init() {
469
470 lttvwindow_register_constructor("guifilter",
471 "/",
472 "Insert Filter Module",
473 hGuiFilterInsert_xpm,
474 "Insert Filter Module",
475 h_guifilter);
476 }
477
478 /**
479 * @fn void filter_destroy_walk(gpointer,gpointer)
480 *
481 * Initiate the destruction of the current gui module
482 * on the GTK Interface
483 */
484 void
485 filter_destroy_walk(gpointer data, gpointer user_data)
486 {
487 FilterViewerData *fvd = (FilterViewerData*)data;
488
489 g_debug("CFV.c : filter_destroy_walk, %p", fvd);
490
491 /* May already have been done by GTK window closing */
492 if(GTK_IS_WIDGET(guifilter_get_widget(fvd)))
493 gtk_widget_destroy(guifilter_get_widget(fvd));
494 }
495
496 /**
497 * @fn static void destroy()
498 * @brief plugin's destroy function
499 *
500 * This function releases the memory reserved by the module and unregisters
501 * everything that has been registered in the gtkTraceSet API.
502 */
503 static void destroy() {
504
505 g_slist_foreach(g_filter_list, filter_destroy_walk, NULL );
506
507 lttvwindow_unregister_constructor(h_guifilter);
508
509 }
510
511 /**
512 * @fn void callback_process_button(GtkWidget*,gpointer)
513 *
514 * The Process Button callback function
515 * @param widget The Button widget passed to the callback function
516 * @param data Data sent along with the callback function
517 */
518 void
519 callback_process_button(GtkWidget *widget, gpointer data) {
520
521 g_debug("callback_process_button(): Processing expression");
522
523 FilterViewerData *fvd = (FilterViewerData*)data;
524 LttvFilter* filter;
525
526 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field))) !=0) {
527 filter = lttv_filter_new();
528 GString* s = g_string_new(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field)));
529 lttv_filter_append_expression(filter,s->str);
530 g_string_free(s,TRUE);
531 //SetFilter(fvd->tab,filter);
532 } else {
533 filter = NULL;
534 }
535 lttvwindow_report_filter(fvd->tab, filter);
536 }
537
538 gboolean callback_enter_check(GtkWidget *widget,
539 GdkEventKey *event,
540 gpointer user_data)
541 {
542 g_debug("typed : %x", event->keyval);
543 switch(event->keyval) {
544 case GDK_Return:
545 case GDK_KP_Enter:
546 case GDK_ISO_Enter:
547 case GDK_3270_Enter:
548 callback_process_button(widget, user_data);
549 break;
550 default:
551 break;
552 }
553 return FALSE;
554 }
555
556 /**
557 * @fn void callback_expression_field(GtkWidget*,gpointer)
558 *
559 * The Add Button callback function
560 * @param widget The Button widget passed to the callback function
561 * @param data Data sent along with the callback function
562 */
563 void
564 callback_expression_field(GtkWidget *widget, gpointer data) {
565
566 FilterViewerData *fvd = (FilterViewerData*)data;
567
568 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field))) !=0) {
569 gtk_widget_show(fvd->f_logical_op_junction_box);
570 } else {
571 gtk_widget_hide(fvd->f_logical_op_junction_box);
572 }
573 }
574
575
576 /**
577 * @fn void callback_add_button(GtkWidget*,gpointer)
578 *
579 * The Add Button callback function
580 * @param widget The Button widget passed to the callback function
581 * @param data Data sent along with the callback function
582 */
583 void
584 callback_add_button(GtkWidget *widget, gpointer data) {
585
586 g_debug("callback_add_button(): processing simple expressions");
587
588 unsigned i;
589
590 FilterViewerData *fvd = (FilterViewerData*)data;
591 FilterViewerDataLine *fvdl = NULL;
592 GString* a_filter_string = g_string_new("");
593
594 /*
595 * adding linking operator to
596 * string
597 */
598 GString* s;
599 s = g_ptr_array_index(fvd->f_logical_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box)));
600 g_string_append(a_filter_string,s->str);
601 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box),0);
602
603 /* begin expression */
604 g_string_append_c(a_filter_string,'(');
605
606 /*
607 * For each simple expression, add the resulting string
608 * to the filter string
609 *
610 * Each simple expression takes the following schema
611 * [not operator '!',' '] [field type] [math operator '<','<=','>','>=','=','!='] [value]
612 */
613 for(i=0;i<fvd->f_lines->len;i++) {
614 fvdl = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i);
615
616 s = g_ptr_array_index(fvd->f_not_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_not_op_box)));
617 g_string_append(a_filter_string,s->str);
618
619 s = g_ptr_array_index(fvd->f_field_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_field_box)));
620 g_string_append(a_filter_string,s->str);
621
622 s = g_ptr_array_index(fvd->f_math_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_math_op_box)));
623 g_string_append(a_filter_string,s->str);
624
625 g_string_append(a_filter_string,gtk_entry_get_text(GTK_ENTRY(fvdl->f_value_field)));
626
627 s = g_ptr_array_index(fvd->f_logical_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_logical_op_box)));
628 g_string_append(a_filter_string,s->str);
629
630 /*
631 * resetting simple expression lines
632 */
633 gui_filter_line_reset(fvdl);
634 if(i) gui_filter_line_set_visible(fvdl,FALSE); // Only keep the first line
635 }
636
637 /* end expression */
638 g_string_append_c(a_filter_string,')');
639
640 g_string_prepend(a_filter_string,gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field)));
641 gtk_entry_set_text(GTK_ENTRY(fvd->f_expression_field),a_filter_string->str);
642
643 }
644
645 /**
646 * @fn void callback_logical_op_box(GtkWidget*,gpointer)
647 *
648 * The logical op box callback function
649 * @param widget The Button widget passed to the callback function
650 * @param data Data sent along with the callback function
651 */
652 void
653 callback_logical_op_box(GtkWidget *widget, gpointer data) {
654
655 g_debug("callback_logical_op_box(): adding new simple expression");
656
657 FilterViewerData *fvd = (FilterViewerData*)data;
658 FilterViewerDataLine *fvdl = NULL;
659
660 int i;
661 for(i=0;i<fvd->f_lines->len;i++) {
662 fvdl = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i);
663 if(fvdl->f_logical_op_box == widget) {
664 if(gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_logical_op_box)) == 0) return;
665 if(i==fvd->f_lines->len-1) { /* create a new line */
666 fvd->rows++;
667 FilterViewerDataLine* fvdl2 = gui_filter_add_line(fvd);
668 g_ptr_array_add(fvd->f_lines,(gpointer) fvdl2);
669 } else {
670 FilterViewerDataLine *fvdl2 = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i+1);
671 if(!fvdl2->visible) gui_filter_line_set_visible(fvdl2,TRUE);
672 }
673 }
674 }
675
676 }
677
678 LTTV_MODULE("guifilter", "Filter window", \
679 "Graphical module that let user specify their filtering options", \
680 init, destroy, "lttvwindow")
681
LTTng 2.x Viewer (LTTV)
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