1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2005 Simon Bouvier-Zappa
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;
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.
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,
27 #include <gdk/gdkkeysyms.h>
29 #include <lttv/lttv.h>
30 #include <lttv/module.h>
31 #include <lttv/hook.h>
32 #include <lttv/filter.h>
34 #include <lttvwindow/lttvwindow.h>
35 #include <lttvwindow/lttvwindowtraces.h>
37 #include "hGuiFilterInsert.xpm"
40 GSList
*g_filter_list
= NULL
;
42 /*! \file lttv/modules/gui/filter/filter.c
43 * \brief Graphic filter interface.
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
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.
57 typedef struct _FilterViewerData FilterViewerData
;
58 typedef struct _FilterViewerDataLine FilterViewerDataLine
;
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
);
75 void callback_process_button(GtkWidget
*widget
, gpointer data
);
76 gboolean
callback_enter_check(GtkWidget
*widget
,
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
);
85 * @struct _FilterViewerDataLine
87 * @brief Defines a simple expression
88 * This structures defines a simple
89 * expression whithin the main filter
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) */
103 * @struct _FilterViewerData
105 * @brief Main structure of gui filter
106 * Main struct for the filter gui module
108 struct _FilterViewerData
{
109 LttvPlugin
*plugin
; /**< Plugin on which we interact. */
111 GtkWidget
*f_window
; /**< filter window */
113 GtkWidget
*f_main_box
; /**< main container */
115 GtkWidget
*f_expression_field
; /**< entire expression (GtkEntry) */
116 GtkWidget
*f_process_button
; /**< process expression button (GtkButton) */
118 GtkWidget
*f_logical_op_junction_box
; /**< linking operator box (GtkComboBox) */
120 int rows
; /**< number of rows */
121 GPtrArray
*f_lines
; /**< array of FilterViewerDataLine */
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 */
128 GtkWidget
*f_add_button
; /**< add expression to current expression (GtkButton) */
129 GtkWidget
*f_cancel_button
; /**< cancel and close dialog (GtkButton) */
134 * @fn GtkWidget* guifilter_get_widget(FilterViewerData*)
136 * This function returns the current main widget
137 * used by this module
138 * @param fvd the module struct
139 * @return The main widget
142 guifilter_get_widget(FilterViewerData
*fvd
)
144 return fvd
->f_window
;
148 * @fn FilterViewerData* gui_filter(Tab*)
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.
155 gui_filter(LttvPlugin
*plugin
)
157 g_debug("filter::gui_filter()");
161 FilterViewerData
* fvd
= g_new(FilterViewerData
,1);
163 fvd
->plugin
= plugin
;
165 // lttvwindow_register_traceset_notify(fvd->tab,
166 // filter_traceset_changed,
167 // filter_viewer_data);
168 // request_background_data(filter_viewer_data);
171 * Initiating items for
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("!"));
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("^"));
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.subname"));
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 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("event.target_pid"));
194 * TODO: Add core.xml fields here !
196 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("channel.name"));
197 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("trace.name"));
198 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.process_name"));
199 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.thread_brand"));
200 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.pid"));
201 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.ppid"));
202 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.creation_time"));
203 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.insertion_time"));
204 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.execution_mode"));
205 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.execution_submode"));
206 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.process_status"));
207 g_ptr_array_add(fvd
->f_field_options
,(gpointer
) g_string_new("state.cpu"));
209 fvd
->f_math_op_options
= g_ptr_array_new(); //g_array_new(FALSE,FALSE,7);
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 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(">="));
219 fvd
->f_window
= gtk_window_new(GTK_WINDOW_TOPLEVEL
);
220 gtk_window_set_title(GTK_WINDOW(fvd
->f_window
), "LTTV Filter");
221 gtk_window_set_transient_for(GTK_WINDOW(fvd
->f_window
),
222 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(fvd
->plugin
->top_widget
))));
223 gtk_window_set_destroy_with_parent(GTK_WINDOW(fvd
->f_window
), TRUE
);
224 gtk_window_set_resizable(GTK_WINDOW(fvd
->f_window
), FALSE
);
227 * Initiating GtkTable layout
228 * starts with 2 rows and 5 columns and
229 * expands when expressions added
231 fvd
->f_main_box
= gtk_table_new(3,7,FALSE
);
232 gtk_table_set_row_spacings(GTK_TABLE(fvd
->f_main_box
),5);
233 gtk_table_set_col_spacings(GTK_TABLE(fvd
->f_main_box
),5);
235 gtk_container_add(GTK_CONTAINER(fvd
->f_window
), GTK_WIDGET(fvd
->f_main_box
));
238 * First half of the filter window
239 * - textual entry of filter expression
240 * - processing button
242 fvd
->f_expression_field
= gtk_entry_new(); //gtk_scrolled_window_new (NULL, NULL);
243 g_signal_connect (G_OBJECT(fvd
->f_expression_field
),
244 "key-press-event", G_CALLBACK (callback_enter_check
), (gpointer
)fvd
);
245 // gtk_entry_set_text(GTK_ENTRY(fvd->f_expression_field),"state.cpu>0");
246 gtk_widget_show (fvd
->f_expression_field
);
248 g_signal_connect (G_OBJECT (fvd
->f_expression_field
), "changed",
249 G_CALLBACK (callback_expression_field
), (gpointer
) fvd
);
251 fvd
->f_process_button
= gtk_button_new_with_label("Process");
252 gtk_widget_show (fvd
->f_process_button
);
254 g_signal_connect (G_OBJECT (fvd
->f_process_button
), "clicked",
255 G_CALLBACK (callback_process_button
), (gpointer
) fvd
);
257 gtk_table_attach( GTK_TABLE(fvd
->f_main_box
),fvd
->f_expression_field
,0,6,0,1,GTK_FILL
,GTK_FILL
,0,0);
258 gtk_table_attach( GTK_TABLE(fvd
->f_main_box
),fvd
->f_process_button
,6,7,0,1,GTK_FILL
,GTK_FILL
,0,0);
263 * Second half of the filter window
264 * - combo boxes featuring filtering options added to the expression
266 fvd
->f_add_button
= gtk_button_new_with_label("Add Expression");
267 gtk_widget_show (fvd
->f_add_button
);
269 g_signal_connect (G_OBJECT (fvd
->f_add_button
), "clicked",
270 G_CALLBACK (callback_add_button
), (gpointer
) fvd
);
272 gtk_table_attach( GTK_TABLE(fvd
->f_main_box
),fvd
->f_add_button
,6,7,2,3,GTK_FILL
,GTK_FILL
,0,0);
274 fvd
->f_cancel_button
= gtk_button_new_with_label("Cancel");
275 gtk_widget_show (fvd
->f_cancel_button
);
276 g_signal_connect (G_OBJECT (fvd
->f_cancel_button
), "clicked",
277 G_CALLBACK (callback_cancel_button
), (gpointer
) fvd
);
279 gtk_table_attach( GTK_TABLE(fvd
->f_main_box
),fvd
->f_cancel_button
,6,7,1,2,GTK_FILL
,GTK_FILL
,0,0);
281 fvd
->f_logical_op_junction_box
= gtk_combo_box_new_text();
282 for(i
=0;i
<fvd
->f_logical_op_options
->len
;i
++) {
283 GString
* s
= g_ptr_array_index(fvd
->f_logical_op_options
,i
);
284 gtk_combo_box_append_text(GTK_COMBO_BOX(fvd
->f_logical_op_junction_box
), s
->str
);
286 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd
->f_logical_op_junction_box
),0);
288 //gtk_widget_show(fvd->f_logical_op_box);
290 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);
292 gtk_container_set_border_width(GTK_CONTAINER(fvd
->f_main_box
), 1);
294 /* initialize a new line */
295 fvd
->f_lines
= g_ptr_array_new();
297 FilterViewerDataLine
* fvdl
= gui_filter_add_line(fvd
);
298 g_ptr_array_add(fvd
->f_lines
,(gpointer
) fvdl
);
301 * show main container
303 gtk_widget_show(fvd
->f_main_box
);
304 gtk_widget_show(fvd
->f_window
);
307 g_object_set_data_full(
308 G_OBJECT(guifilter_get_widget(fvd
)),
309 "filter_viewer_data",
311 (GDestroyNotify
)gui_filter_destructor
);
313 g_filter_list
= g_slist_append(
321 * @fn FilterViewerDataLine* gui_filter_add_line(FilterViewerData*)
323 * Adds a filter option line on the module tab
324 * @param fvd The filter module structure
325 * @return The line structure
327 FilterViewerDataLine
*
328 gui_filter_add_line(FilterViewerData
* fvd
) {
330 FilterViewerDataLine
* fvdl
= g_new(FilterViewerDataLine
,1);
333 fvdl
->row
= fvd
->rows
;
334 fvdl
->visible
= TRUE
;
336 fvdl
->f_not_op_box
= gtk_combo_box_new_text();
337 for(i
=0;i
<fvd
->f_not_op_options
->len
;i
++) {
338 GString
* s
= g_ptr_array_index(fvd
->f_not_op_options
,i
);
339 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl
->f_not_op_box
), s
->str
);
342 fvdl
->f_field_box
= gtk_combo_box_new_text();
343 for(i
=0;i
<fvd
->f_field_options
->len
;i
++) {
344 GString
* s
= g_ptr_array_index(fvd
->f_field_options
,i
);
345 // g_print("String field: %s\n",s->str);
346 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl
->f_field_box
), s
->str
);
349 fvdl
->f_math_op_box
= gtk_combo_box_new_text();
350 for(i
=0;i
<fvd
->f_math_op_options
->len
;i
++) {
351 GString
* s
= g_ptr_array_index(fvd
->f_math_op_options
,i
);
352 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl
->f_math_op_box
), s
->str
);
355 fvdl
->f_value_field
= gtk_entry_new();
357 fvdl
->f_logical_op_box
= gtk_combo_box_new_text();
358 for(i
=0;i
<fvd
->f_logical_op_options
->len
;i
++) {
359 GString
* s
= g_ptr_array_index(fvd
->f_logical_op_options
,i
);
360 gtk_combo_box_append_text(GTK_COMBO_BOX(fvdl
->f_logical_op_box
), s
->str
);
362 gtk_widget_set_events(fvdl
->f_logical_op_box
,
363 GDK_ENTER_NOTIFY_MASK
|
364 GDK_LEAVE_NOTIFY_MASK
|
365 GDK_FOCUS_CHANGE_MASK
);
367 g_signal_connect (G_OBJECT (fvdl
->f_logical_op_box
), "changed",
368 G_CALLBACK (callback_logical_op_box
), (gpointer
) fvd
);
370 gui_filter_line_reset(fvdl
);
371 gui_filter_line_set_visible(fvdl
,TRUE
);
373 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);
374 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);
375 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);
376 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);
377 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);
383 * @fn void gui_filter_line_set_visible(FilterViewerDataLine*,gboolean)
385 * Change visible state of current FilterViewerDataLine
386 * @param fvdl pointer to the current FilterViewerDataLine
387 * @param v TRUE: sets visible, FALSE: sets invisible
390 gui_filter_line_set_visible(FilterViewerDataLine
*fvdl
, gboolean v
) {
394 gtk_widget_show(fvdl
->f_not_op_box
);
395 gtk_widget_show(fvdl
->f_field_box
);
396 gtk_widget_show(fvdl
->f_math_op_box
);
397 gtk_widget_show(fvdl
->f_value_field
);
398 gtk_widget_show(fvdl
->f_logical_op_box
);
400 gtk_widget_hide(fvdl
->f_not_op_box
);
401 gtk_widget_hide(fvdl
->f_field_box
);
402 gtk_widget_hide(fvdl
->f_math_op_box
);
403 gtk_widget_hide(fvdl
->f_value_field
);
404 gtk_widget_hide(fvdl
->f_logical_op_box
);
410 * @fn void gui_filter_line_reset(FilterViewerDataLine*)
412 * Sets selections of all boxes in current FilterViewerDataLine
413 * to default value (0)
414 * @param fvdl pointer to current FilterViewerDataLine
417 gui_filter_line_reset(FilterViewerDataLine
*fvdl
) {
419 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl
->f_not_op_box
),0);
420 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl
->f_field_box
),0);
421 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl
->f_math_op_box
),0);
422 gtk_entry_set_text(GTK_ENTRY(fvdl
->f_value_field
),"");
423 gtk_combo_box_set_active(GTK_COMBO_BOX(fvdl
->f_logical_op_box
),0);
427 * @fn void gui_filter_destructor(FilterViewerData*)
429 * Destructor for the filter gui module
430 * @param fvd The module structure
433 gui_filter_destructor(FilterViewerData
*fvd
)
435 /* May already been done by GTK window closing */
436 if(GTK_IS_WIDGET(guifilter_get_widget(fvd
))){
437 g_info("widget still exists");
440 // lttvwindow_unregister_traceset_notify(fvd->tab,
441 // filter_traceset_changed,
442 // filter_viewer_data);
444 lttvwindowtraces_background_notify_remove(fvd
);
446 g_filter_list
= g_slist_remove(g_filter_list
, fvd
);
453 * @fn GtkWidget* h_guifilter(Tab*)
455 * Filter Module's constructor hook
457 * This constructor is given as a parameter to the menuitem and toolbar button
458 * registration. It creates the list.
459 * @param obj Object to interact with.
460 * @return The widget created.
463 h_guifilter(LttvPlugin
*plugin
)
469 * @fn static void init()
471 * This function initializes the Filter Viewer functionnality through the
476 lttvwindow_register_constructor("guifilter",
478 "Insert Filter Module",
479 hGuiFilterInsert_xpm
,
480 "Insert Filter Module",
485 * @fn void filter_destroy_walk(gpointer,gpointer)
487 * Initiate the destruction of the current gui module
488 * on the GTK Interface
491 filter_destroy_walk(gpointer data
, gpointer user_data
)
493 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
495 g_debug("CFV.c : filter_destroy_walk, %p", fvd
);
497 /* May already have been done by GTK window closing */
498 if(GTK_IS_WIDGET(guifilter_get_widget(fvd
)))
499 gtk_widget_destroy(guifilter_get_widget(fvd
));
503 * @fn static void destroy()
504 * @brief plugin's destroy function
506 * This function releases the memory reserved by the module and unregisters
507 * everything that has been registered in the gtkTraceSet API.
509 static void destroy() {
511 g_slist_foreach(g_filter_list
, filter_destroy_walk
, NULL
);
513 lttvwindow_unregister_constructor(h_guifilter
);
518 * @fn void callback_process_button(GtkWidget*,gpointer)
520 * The Process Button callback function
521 * @param widget The Button widget passed to the callback function
522 * @param data Data sent along with the callback function
525 callback_process_button(GtkWidget
*widget
, gpointer data
) {
527 g_debug("callback_process_button(): Processing expression");
529 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
532 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd
->f_expression_field
))) !=0) {
533 filter
= lttv_filter_new();
534 GString
* s
= g_string_new(gtk_entry_get_text(GTK_ENTRY(fvd
->f_expression_field
)));
535 lttv_filter_append_expression(filter
,s
->str
);
536 g_string_free(s
,TRUE
);
540 /* Remove the old filter if present */
541 //g_object_set_data_full(fvd->obj, "filter", filter,
542 // (GDestroyNotify)lttv_filter_destroy);
543 //g_object_notify(fvd->obj, "filter");
544 lttv_plugin_update_filter(fvd
->plugin
, filter
);
548 * @fn void callback_cancel_button(GtkWidget*,gpointer)
550 * The Cancel Button callback function
551 * @param widget The Button widget passed to the callback function
552 * @param data Data sent along with the callback function
555 callback_cancel_button(GtkWidget
*widget
, gpointer data
) {
557 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
558 gtk_widget_destroy(fvd
->f_window
);
561 gboolean
callback_enter_check(GtkWidget
*widget
,
565 g_debug("typed : %x", event
->keyval
);
566 switch(event
->keyval
) {
571 callback_process_button(widget
, user_data
);
580 * @fn void callback_expression_field(GtkWidget*,gpointer)
582 * The Add Button callback function
583 * @param widget The Button widget passed to the callback function
584 * @param data Data sent along with the callback function
587 callback_expression_field(GtkWidget
*widget
, gpointer data
) {
589 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
591 if(strlen(gtk_entry_get_text(GTK_ENTRY(fvd
->f_expression_field
))) !=0) {
592 gtk_widget_show(fvd
->f_logical_op_junction_box
);
594 gtk_widget_hide(fvd
->f_logical_op_junction_box
);
600 * @fn void callback_add_button(GtkWidget*,gpointer)
602 * The Add Button callback function
603 * @param widget The Button widget passed to the callback function
604 * @param data Data sent along with the callback function
607 callback_add_button(GtkWidget
*widget
, gpointer data
) {
609 g_debug("callback_add_button(): processing simple expressions");
613 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
614 FilterViewerDataLine
*fvdl
= NULL
;
615 GString
* a_filter_string
= g_string_new("");
618 * adding linking operator to
622 s
= g_ptr_array_index(fvd
->f_logical_op_options
,gtk_combo_box_get_active(GTK_COMBO_BOX(fvd
->f_logical_op_junction_box
)));
623 a_filter_string
= g_string_append(a_filter_string
,s
->str
);
624 gtk_combo_box_set_active(GTK_COMBO_BOX(fvd
->f_logical_op_junction_box
),0);
626 /* begin expression */
627 a_filter_string
= g_string_append_c(a_filter_string
,'(');
630 * For each simple expression, add the resulting string
631 * to the filter string
633 * Each simple expression takes the following schema
634 * [not operator '!',' '] [field type] [math operator '<','<=','>','>=','=','!='] [value]
636 for(i
=0;i
<fvd
->f_lines
->len
;i
++) {
637 fvdl
= (FilterViewerDataLine
*)g_ptr_array_index(fvd
->f_lines
,i
);
639 s
= g_ptr_array_index(fvd
->f_not_op_options
,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl
->f_not_op_box
)));
640 a_filter_string
= g_string_append(a_filter_string
,s
->str
);
642 s
= g_ptr_array_index(fvd
->f_field_options
,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl
->f_field_box
)));
643 a_filter_string
= g_string_append(a_filter_string
,s
->str
);
645 s
= g_ptr_array_index(fvd
->f_math_op_options
,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl
->f_math_op_box
)));
646 a_filter_string
= g_string_append(a_filter_string
,s
->str
);
648 a_filter_string
= g_string_append(a_filter_string
,gtk_entry_get_text(GTK_ENTRY(fvdl
->f_value_field
)));
650 s
= g_ptr_array_index(fvd
->f_logical_op_options
,gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl
->f_logical_op_box
)));
651 a_filter_string
= g_string_append(a_filter_string
,s
->str
);
654 * resetting simple expression lines
656 gui_filter_line_reset(fvdl
);
657 if(i
) gui_filter_line_set_visible(fvdl
,FALSE
); // Only keep the first line
661 a_filter_string
= g_string_append_c(a_filter_string
,')');
663 g_string_prepend(a_filter_string
,gtk_entry_get_text(GTK_ENTRY(fvd
->f_expression_field
)));
664 gtk_entry_set_text(GTK_ENTRY(fvd
->f_expression_field
),a_filter_string
->str
);
669 * @fn void callback_logical_op_box(GtkWidget*,gpointer)
671 * The logical op box callback function
672 * @param widget The Button widget passed to the callback function
673 * @param data Data sent along with the callback function
676 callback_logical_op_box(GtkWidget
*widget
, gpointer data
) {
678 g_debug("callback_logical_op_box(): adding new simple expression");
680 FilterViewerData
*fvd
= (FilterViewerData
*)data
;
681 FilterViewerDataLine
*fvdl
= NULL
;
684 for(i
=0;i
<fvd
->f_lines
->len
;i
++) {
685 fvdl
= (FilterViewerDataLine
*)g_ptr_array_index(fvd
->f_lines
,i
);
686 if(fvdl
->f_logical_op_box
== widget
) {
687 if(gtk_combo_box_get_active(GTK_COMBO_BOX(fvdl
->f_logical_op_box
)) == 0) return;
688 if(i
==fvd
->f_lines
->len
-1) { /* create a new line */
690 FilterViewerDataLine
* fvdl2
= gui_filter_add_line(fvd
);
691 g_ptr_array_add(fvd
->f_lines
,(gpointer
) fvdl2
);
693 FilterViewerDataLine
*fvdl2
= (FilterViewerDataLine
*)g_ptr_array_index(fvd
->f_lines
,i
+1);
694 if(!fvdl2
->visible
) gui_filter_line_set_visible(fvdl2
,TRUE
);
701 LTTV_MODULE("guifilter", "Filter window", \
702 "Graphical module that let user specify their filtering options", \
703 init
, destroy
, "lttvwindow")