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[lttv.git] / trunk / lttv / 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(LttvPlugin *plugin);
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(LttvPlugin *plugin);
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 void callback_cancel_button(GtkWidget *widget, gpointer data);
83
84 /**
85 * @struct _FilterViewerDataLine
86 *
87 * @brief Defines a simple expression
88 * This structures defines a simple
89 * expression whithin the main filter
90 * viewer data
91 */
92 struct _FilterViewerDataLine {
93 int row; /**< row number */
94 gboolean visible; /**< visible state */
95 GtkWidget *f_not_op_box; /**< '!' operator (GtkComboBox) */
96 GtkWidget *f_logical_op_box; /**< '&,|,^' operators (GtkComboBox) */
97 GtkWidget *f_field_box; /**< field types (GtkComboBox) */
98 GtkWidget *f_math_op_box; /**< '>,>=,<,<=,=,!=' operators (GtkComboBox) */
99 GtkWidget *f_value_field; /**< expression's value (GtkComboBox) */
100 };
101
102 /**
103 * @struct _FilterViewerData
104 *
105 * @brief Main structure of gui filter
106 * Main struct for the filter gui module
107 */
108 struct _FilterViewerData {
109 LttvPlugin *plugin; /**< Plugin on which we interact. */
110
111 GtkWidget *f_window; /**< filter window */
112
113 GtkWidget *f_main_box; /**< main container */
114
115 GtkWidget *f_expression_field; /**< entire expression (GtkEntry) */
116 GtkWidget *f_process_button; /**< process expression button (GtkButton) */
117
118 GtkWidget *f_logical_op_junction_box; /**< linking operator box (GtkComboBox) */
119
120 int rows; /**< number of rows */
121 GPtrArray *f_lines; /**< array of FilterViewerDataLine */
122
123 GPtrArray *f_not_op_options; /**< array of operators types for not_op box */
124 GPtrArray *f_logical_op_options; /**< array of operators types for logical_op box */
125 GPtrArray *f_field_options; /**< array of field types for field box */
126 GPtrArray *f_math_op_options; /**< array of operators types for math_op box */
127
128 GtkWidget *f_add_button; /**< add expression to current expression (GtkButton) */
129 GtkWidget *f_cancel_button; /**< cancel and close dialog (GtkButton) */
130
131 };
132
133 /**
134 * @fn GtkWidget* guifilter_get_widget(FilterViewerData*)
135 *
136 * This function returns the current main widget
137 * used by this module
138 * @param fvd the module struct
139 * @return The main widget
140 */
141 GtkWidget*
142 guifilter_get_widget(FilterViewerData *fvd)
143 {
144 return fvd->f_window;
145 }
146
147 /**
148 * @fn FilterViewerData* gui_filter(Tab*)
149 *
150 * Constructor is used to create FilterViewerData data structure.
151 * @param tab The tab structure used by the widget
152 * @return The Filter viewer data created.
153 */
154 FilterViewerData*
155 gui_filter(LttvPlugin *plugin)
156 {
157 g_debug("filter::gui_filter()");
158
159 unsigned i;
160 GtkCellRenderer *renderer;
161 GtkTreeViewColumn *column;
162
163 FilterViewerData* fvd = g_new(FilterViewerData,1);
164
165 fvd->plugin = plugin;
166
167 // lttvwindow_register_traceset_notify(fvd->tab,
168 // filter_traceset_changed,
169 // filter_viewer_data);
170 // request_background_data(filter_viewer_data);
171
172 /*
173 * Initiating items for
174 * combo boxes
175 */
176 fvd->f_not_op_options = g_ptr_array_new();
177 g_ptr_array_add(fvd->f_not_op_options,(gpointer) g_string_new(""));
178 g_ptr_array_add(fvd->f_not_op_options,(gpointer) g_string_new("!"));
179
180 fvd->f_logical_op_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,sizeof(gchar));
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 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("!"));
185 g_ptr_array_add(fvd->f_logical_op_options,(gpointer) g_string_new("^"));
186
187 fvd->f_field_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,16);
188 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new(""));
189 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.name"));
190 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.subname"));
191 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.category"));
192 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.time"));
193 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.tsc"));
194 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("event.target_pid"));
195 /*
196 * TODO: Add core.xml fields here !
197 */
198 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("channel.name"));
199 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("trace.name"));
200 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.process_name"));
201 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.thread_brand"));
202 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.pid"));
203 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.ppid"));
204 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.creation_time"));
205 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.insertion_time"));
206 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.execution_mode"));
207 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.execution_submode"));
208 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.process_status"));
209 g_ptr_array_add(fvd->f_field_options,(gpointer) g_string_new("state.cpu"));
210
211 fvd->f_math_op_options = g_ptr_array_new(); //g_array_new(FALSE,FALSE,7);
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 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("<"));
216 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new("<="));
217 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new(">"));
218 g_ptr_array_add(fvd->f_math_op_options,(gpointer) g_string_new(">="));
219
220
221 fvd->f_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
222 gtk_window_set_title(GTK_WINDOW(fvd->f_window), "LTTV Filter");
223 gtk_window_set_transient_for(GTK_WINDOW(fvd->f_window),
224 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(fvd->plugin->top_widget))));
225 gtk_window_set_destroy_with_parent(GTK_WINDOW(fvd->f_window), TRUE);
226 gtk_window_set_resizable(GTK_WINDOW(fvd->f_window), FALSE);
227
228 /*
229 * Initiating GtkTable layout
230 * starts with 2 rows and 5 columns and
231 * expands when expressions added
232 */
233 fvd->f_main_box = gtk_table_new(3,7,FALSE);
234 gtk_table_set_row_spacings(GTK_TABLE(fvd->f_main_box),5);
235 gtk_table_set_col_spacings(GTK_TABLE(fvd->f_main_box),5);
236
237 gtk_container_add(GTK_CONTAINER(fvd->f_window), GTK_WIDGET(fvd->f_main_box));
238
239 /*
240 * First half of the filter window
241 * - textual entry of filter expression
242 * - processing button
243 */
244 fvd->f_expression_field = gtk_entry_new(); //gtk_scrolled_window_new (NULL, NULL);
245 g_signal_connect (G_OBJECT(fvd->f_expression_field),
246 "key-press-event", G_CALLBACK (callback_enter_check), (gpointer)fvd);
247 // gtk_entry_set_text(GTK_ENTRY(fvd->f_expression_field),"state.cpu>0");
248 gtk_widget_show (fvd->f_expression_field);
249
250 g_signal_connect (G_OBJECT (fvd->f_expression_field), "changed",
251 G_CALLBACK (callback_expression_field), (gpointer) fvd);
252
253 fvd->f_process_button = gtk_button_new_with_label("Process");
254 gtk_widget_show (fvd->f_process_button);
255
256 g_signal_connect (G_OBJECT (fvd->f_process_button), "clicked",
257 G_CALLBACK (callback_process_button), (gpointer) fvd);
258
259 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_expression_field,0,6,0,1,GTK_FILL,GTK_FILL,0,0);
260 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_process_button,6,7,0,1,GTK_FILL,GTK_FILL,0,0);
261
262
263
264 /*
265 * Second half of the filter window
266 * - combo boxes featuring filtering options added to the expression
267 */
268 fvd->f_add_button = gtk_button_new_with_label("Add Expression");
269 gtk_widget_show (fvd->f_add_button);
270
271 g_signal_connect (G_OBJECT (fvd->f_add_button), "clicked",
272 G_CALLBACK (callback_add_button), (gpointer) fvd);
273
274 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_add_button,6,7,2,3,GTK_FILL,GTK_FILL,0,0);
275
276 fvd->f_cancel_button = gtk_button_new_with_label("Cancel");
277 gtk_widget_show (fvd->f_cancel_button);
278 g_signal_connect (G_OBJECT (fvd->f_cancel_button), "clicked",
279 G_CALLBACK (callback_cancel_button), (gpointer) fvd);
280
281 gtk_table_attach( GTK_TABLE(fvd->f_main_box),fvd->f_cancel_button,6,7,1,2,GTK_FILL,GTK_FILL,0,0);
282
283 fvd->f_logical_op_junction_box = gtk_combo_box_new_text();
284 for(i=0;i<fvd->f_logical_op_options->len;i++) {
285 GString* s = g_ptr_array_index(fvd->f_logical_op_options,i);
286 gtk_combo_box_append_text(GTK_COMBO_BOX(fvd->f_logical_op_junction_box), s->str);
287 }
288 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box),0);
289
290 //gtk_widget_show(fvd->f_logical_op_box);
291
292 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);
293
294 gtk_container_set_border_width(GTK_CONTAINER(fvd->f_main_box), 1);
295
296 /* initialize a new line */
297 fvd->f_lines = g_ptr_array_new();
298 fvd->rows = 1;
299 FilterViewerDataLine* fvdl = gui_filter_add_line(fvd);
300 g_ptr_array_add(fvd->f_lines,(gpointer) fvdl);
301
302 /*
303 * show main container
304 */
305 gtk_widget_show(fvd->f_main_box);
306 gtk_widget_show(fvd->f_window);
307
308
309 g_object_set_data_full(
310 G_OBJECT(guifilter_get_widget(fvd)),
311 "filter_viewer_data",
312 fvd,
313 (GDestroyNotify)gui_filter_destructor);
314
315 g_filter_list = g_slist_append(
316 g_filter_list,
317 fvd);
318
319 return fvd;
320 }
321
322 /**
323 * @fn FilterViewerDataLine* gui_filter_add_line(FilterViewerData*)
324 *
325 * Adds a filter option line on the module tab
326 * @param fvd The filter module structure
327 * @return The line structure
328 */
329 FilterViewerDataLine*
330 gui_filter_add_line(FilterViewerData* fvd) {
331
332 FilterViewerDataLine* fvdl = g_new(FilterViewerDataLine,1);
333
334 unsigned i;
335 fvdl->row = fvd->rows;
336 fvdl->visible = TRUE;
337
338 fvdl->f_not_op_box = gtk_combo_box_new_text();
339 for(i=0;i<fvd->f_not_op_options->len;i++) {
340 GString* s = g_ptr_array_index(fvd->f_not_op_options,i);
341 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_not_op_box), s->str);
342 }
343
344 fvdl->f_field_box = gtk_combo_box_new_text();
345 for(i=0;i<fvd->f_field_options->len;i++) {
346 GString* s = g_ptr_array_index(fvd->f_field_options,i);
347 // g_print("String field: %s\n",s->str);
348 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_field_box), s->str);
349 }
350
351 fvdl->f_math_op_box = gtk_combo_box_new_text();
352 for(i=0;i<fvd->f_math_op_options->len;i++) {
353 GString* s = g_ptr_array_index(fvd->f_math_op_options,i);
354 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_math_op_box), s->str);
355 }
356
357 fvdl->f_value_field = gtk_entry_new();
358
359 fvdl->f_logical_op_box = gtk_combo_box_new_text();
360 for(i=0;i<fvd->f_logical_op_options->len;i++) {
361 GString* s = g_ptr_array_index(fvd->f_logical_op_options,i);
362 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl->f_logical_op_box), s->str);
363 }
364 gtk_widget_set_events(fvdl->f_logical_op_box,
365 GDK_ENTER_NOTIFY_MASK |
366 GDK_LEAVE_NOTIFY_MASK |
367 GDK_FOCUS_CHANGE_MASK);
368
369 g_signal_connect (G_OBJECT (fvdl->f_logical_op_box), "changed",
370 G_CALLBACK (callback_logical_op_box), (gpointer) fvd);
371
372 gui_filter_line_reset(fvdl);
373 gui_filter_line_set_visible(fvdl,TRUE);
374
375 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);
376 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);
377 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);
378 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);
379 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);
380
381 return fvdl;
382 }
383
384 /**
385 * @fn void gui_filter_line_set_visible(FilterViewerDataLine*,gboolean)
386 *
387 * Change visible state of current FilterViewerDataLine
388 * @param fvdl pointer to the current FilterViewerDataLine
389 * @param v TRUE: sets visible, FALSE: sets invisible
390 */
391 void
392 gui_filter_line_set_visible(FilterViewerDataLine *fvdl, gboolean v) {
393
394 fvdl->visible = v;
395 if(v) {
396 gtk_widget_show(fvdl->f_not_op_box);
397 gtk_widget_show(fvdl->f_field_box);
398 gtk_widget_show(fvdl->f_math_op_box);
399 gtk_widget_show(fvdl->f_value_field);
400 gtk_widget_show(fvdl->f_logical_op_box);
401 } else {
402 gtk_widget_hide(fvdl->f_not_op_box);
403 gtk_widget_hide(fvdl->f_field_box);
404 gtk_widget_hide(fvdl->f_math_op_box);
405 gtk_widget_hide(fvdl->f_value_field);
406 gtk_widget_hide(fvdl->f_logical_op_box);
407 }
408
409 }
410
411 /**
412 * @fn void gui_filter_line_reset(FilterViewerDataLine*)
413 *
414 * Sets selections of all boxes in current FilterViewerDataLine
415 * to default value (0)
416 * @param fvdl pointer to current FilterViewerDataLine
417 */
418 void
419 gui_filter_line_reset(FilterViewerDataLine *fvdl) {
420
421 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_not_op_box),0);
422 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_field_box),0);
423 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_math_op_box),0);
424 gtk_entry_set_text(GTK_ENTRY(fvdl->f_value_field),"");
425 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl->f_logical_op_box),0);
426 }
427
428 /**
429 * @fn void gui_filter_destructor(FilterViewerData*)
430 *
431 * Destructor for the filter gui module
432 * @param fvd The module structure
433 */
434 void
435 gui_filter_destructor(FilterViewerData *fvd)
436 {
437 /* May already been done by GTK window closing */
438 if(GTK_IS_WIDGET(guifilter_get_widget(fvd))){
439 g_info("widget still exists");
440 }
441 // if(tab != NULL) {
442 // lttvwindow_unregister_traceset_notify(fvd->tab,
443 // filter_traceset_changed,
444 // filter_viewer_data);
445 // }
446 lttvwindowtraces_background_notify_remove(fvd);
447
448 g_filter_list = g_slist_remove(g_filter_list, fvd);
449
450 g_free(fvd);
451 }
452
453
454 /**
455 * @fn GtkWidget* h_guifilter(Tab*)
456 *
457 * Filter Module's constructor hook
458 *
459 * This constructor is given as a parameter to the menuitem and toolbar button
460 * registration. It creates the list.
461 * @param obj Object to interact with.
462 * @return The widget created.
463 */
464 GtkWidget *
465 h_guifilter(LttvPlugin *plugin)
466 {
467 FilterViewerData* f = gui_filter(plugin) ;
468
469 return NULL;
470 }
471
472 /**
473 * @fn static void init()
474 *
475 * This function initializes the Filter Viewer functionnality through the
476 * gtkTraceSet API.
477 */
478 static void init() {
479
480 lttvwindow_register_constructor("guifilter",
481 "/",
482 "Insert Filter Module",
483 hGuiFilterInsert_xpm,
484 "Insert Filter Module",
485 h_guifilter);
486 }
487
488 /**
489 * @fn void filter_destroy_walk(gpointer,gpointer)
490 *
491 * Initiate the destruction of the current gui module
492 * on the GTK Interface
493 */
494 void
495 filter_destroy_walk(gpointer data, gpointer user_data)
496 {
497 FilterViewerData *fvd = (FilterViewerData*)data;
498
499 g_debug("CFV.c : filter_destroy_walk, %p", fvd);
500
501 /* May already have been done by GTK window closing */
502 if(GTK_IS_WIDGET(guifilter_get_widget(fvd)))
503 gtk_widget_destroy(guifilter_get_widget(fvd));
504 }
505
506 /**
507 * @fn static void destroy()
508 * @brief plugin's destroy function
509 *
510 * This function releases the memory reserved by the module and unregisters
511 * everything that has been registered in the gtkTraceSet API.
512 */
513 static void destroy() {
514
515 g_slist_foreach(g_filter_list, filter_destroy_walk, NULL );
516
517 lttvwindow_unregister_constructor(h_guifilter);
518
519 }
520
521 /**
522 * @fn void callback_process_button(GtkWidget*,gpointer)
523 *
524 * The Process Button callback function
525 * @param widget The Button widget passed to the callback function
526 * @param data Data sent along with the callback function
527 */
528 void
529 callback_process_button(GtkWidget *widget, gpointer data) {
530
531 g_debug("callback_process_button(): Processing expression");
532
533 FilterViewerData *fvd = (FilterViewerData*)data;
534 LttvFilter* filter;
535
536 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field))) !=0) {
537 filter = lttv_filter_new();
538 GString* s = g_string_new(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field)));
539 lttv_filter_append_expression(filter,s->str);
540 g_string_free(s,TRUE);
541 } else {
542 filter = NULL;
543 }
544 /* Remove the old filter if present */
545 //g_object_set_data_full(fvd->obj, "filter", filter,
546 // (GDestroyNotify)lttv_filter_destroy);
547 //g_object_notify(fvd->obj, "filter");
548 lttv_plugin_update_filter(fvd->plugin, filter);
549 }
550
551 /**
552 * @fn void callback_cancel_button(GtkWidget*,gpointer)
553 *
554 * The Cancel Button callback function
555 * @param widget The Button widget passed to the callback function
556 * @param data Data sent along with the callback function
557 */
558 void
559 callback_cancel_button(GtkWidget *widget, gpointer data) {
560
561 FilterViewerData *fvd = (FilterViewerData*)data;
562 gtk_widget_destroy(fvd->f_window);
563 }
564
565 gboolean callback_enter_check(GtkWidget *widget,
566 GdkEventKey *event,
567 gpointer user_data)
568 {
569 g_debug("typed : %x", event->keyval);
570 switch(event->keyval) {
571 case GDK_Return:
572 case GDK_KP_Enter:
573 case GDK_ISO_Enter:
574 case GDK_3270_Enter:
575 callback_process_button(widget, user_data);
576 break;
577 default:
578 break;
579 }
580 return FALSE;
581 }
582
583 /**
584 * @fn void callback_expression_field(GtkWidget*,gpointer)
585 *
586 * The Add Button callback function
587 * @param widget The Button widget passed to the callback function
588 * @param data Data sent along with the callback function
589 */
590 void
591 callback_expression_field(GtkWidget *widget, gpointer data) {
592
593 FilterViewerData *fvd = (FilterViewerData*)data;
594
595 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field))) !=0) {
596 gtk_widget_show(fvd->f_logical_op_junction_box);
597 } else {
598 gtk_widget_hide(fvd->f_logical_op_junction_box);
599 }
600 }
601
602
603 /**
604 * @fn void callback_add_button(GtkWidget*,gpointer)
605 *
606 * The Add Button callback function
607 * @param widget The Button widget passed to the callback function
608 * @param data Data sent along with the callback function
609 */
610 void
611 callback_add_button(GtkWidget *widget, gpointer data) {
612
613 g_debug("callback_add_button(): processing simple expressions");
614
615 unsigned i;
616
617 FilterViewerData *fvd = (FilterViewerData*)data;
618 FilterViewerDataLine *fvdl = NULL;
619 GString* a_filter_string = g_string_new("");
620
621 /*
622 * adding linking operator to
623 * string
624 */
625 GString* s;
626 s = g_ptr_array_index(fvd->f_logical_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box)));
627 a_filter_string = g_string_append(a_filter_string,s->str);
628 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd->f_logical_op_junction_box),0);
629
630 /* begin expression */
631 a_filter_string = g_string_append_c(a_filter_string,'(');
632
633 /*
634 * For each simple expression, add the resulting string
635 * to the filter string
636 *
637 * Each simple expression takes the following schema
638 * [not operator '!',' '] [field type] [math operator '<','<=','>','>=','=','!='] [value]
639 */
640 for(i=0;i<fvd->f_lines->len;i++) {
641 fvdl = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i);
642
643 s = g_ptr_array_index(fvd->f_not_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_not_op_box)));
644 a_filter_string = g_string_append(a_filter_string,s->str);
645
646 s = g_ptr_array_index(fvd->f_field_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_field_box)));
647 a_filter_string = g_string_append(a_filter_string,s->str);
648
649 s = g_ptr_array_index(fvd->f_math_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_math_op_box)));
650 a_filter_string = g_string_append(a_filter_string,s->str);
651
652 a_filter_string = g_string_append(a_filter_string,gtk_entry_get_text(GTK_ENTRY(fvdl->f_value_field)));
653
654 s = g_ptr_array_index(fvd->f_logical_op_options,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_logical_op_box)));
655 a_filter_string = g_string_append(a_filter_string,s->str);
656
657 /*
658 * resetting simple expression lines
659 */
660 gui_filter_line_reset(fvdl);
661 if(i) gui_filter_line_set_visible(fvdl,FALSE); // Only keep the first line
662 }
663
664 /* end expression */
665 a_filter_string = g_string_append_c(a_filter_string,')');
666
667 g_string_prepend(a_filter_string,gtk_entry_get_text(GTK_ENTRY(fvd->f_expression_field)));
668 gtk_entry_set_text(GTK_ENTRY(fvd->f_expression_field),a_filter_string->str);
669
670 }
671
672 /**
673 * @fn void callback_logical_op_box(GtkWidget*,gpointer)
674 *
675 * The logical op box callback function
676 * @param widget The Button widget passed to the callback function
677 * @param data Data sent along with the callback function
678 */
679 void
680 callback_logical_op_box(GtkWidget *widget, gpointer data) {
681
682 g_debug("callback_logical_op_box(): adding new simple expression");
683
684 FilterViewerData *fvd = (FilterViewerData*)data;
685 FilterViewerDataLine *fvdl = NULL;
686
687 int i;
688 for(i=0;i<fvd->f_lines->len;i++) {
689 fvdl = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i);
690 if(fvdl->f_logical_op_box == widget) {
691 if(gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl->f_logical_op_box)) == 0) return;
692 if(i==fvd->f_lines->len-1) { /* create a new line */
693 fvd->rows++;
694 FilterViewerDataLine* fvdl2 = gui_filter_add_line(fvd);
695 g_ptr_array_add(fvd->f_lines,(gpointer) fvdl2);
696 } else {
697 FilterViewerDataLine *fvdl2 = (FilterViewerDataLine*)g_ptr_array_index(fvd->f_lines,i+1);
698 if(!fvdl2->visible) gui_filter_line_set_visible(fvdl2,TRUE);
699 }
700 }
701 }
702
703 }
704
705 LTTV_MODULE("guifilter", "Filter window", \
706 "Graphical module that let user specify their filtering options", \
707 init, destroy, "lttvwindow")
708
LTTng 2.x Viewer (LTTV)
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