--- /dev/null
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 XangXiu Yang
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*! \file lttvwindow.c
+ * \brief API used by the graphical viewers to interact with their tab.
+ *
+ * Main window (gui module) is the place to contain and display viewers.
+ * Viewers (lttv plugins) interact with tab and main window through this API
+ * and events sent by gtk.
+ * This header file should be included in each graphic module.
+ * This library is used by graphical modules to interact with their tab and
+ * main window.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <ltt/ltt.h>
+#include <lttv/lttv.h>
+#include <lttv/state.h>
+#include <lttv/stats.h>
+#include <lttv/tracecontext.h>
+#include <lttvwindow/mainwindow.h>
+#include <lttvwindow/mainwindow-private.h>
+#include <lttvwindow/lttvwindow.h>
+#include <lttvwindow/toolbar.h>
+#include <lttvwindow/menu.h>
+#include <lttvwindow/callbacks.h> // for execute_events_requests
+#include <lttvwindow/support.h>
+
+/**
+ * Internal function parts
+ */
+
+extern GSList * g_main_window_list;
+
+__EXPORT gint lttvwindow_preempt_count = 0;
+
+/* set_time_window
+ *
+ * It updates the time window of the tab, then calls the updatetimewindow
+ * hooks of each viewer.
+ *
+ * This is called whenever the scrollbar value changes.
+ */
+
+void set_time_window(Tab *tab, const TimeWindow *time_window)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+
+ TimeWindowNotifyData time_window_notify_data;
+ TimeWindow old_time_window = tab->time_window;
+ time_window_notify_data.old_time_window = &old_time_window;
+ tab->time_window = *time_window;
+ time_window_notify_data.new_time_window =
+ &(tab->time_window);
+
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetimewindow", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp != NULL) lttv_hooks_call(tmp, &time_window_notify_data);
+
+ //gtk_multi_vpaned_set_adjust(tab->multi_vpaned, new_time_window, FALSE);
+
+}
+
+/* set_current_time
+ *
+ * It updates the current time of the tab, then calls the updatetimewindow
+ * hooks of each viewer.
+ *
+ * This is called whenever the current time value changes.
+ */
+
+void set_current_time(Tab *tab, const LttTime *current_time)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+
+ tab->current_time = *current_time;
+
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrenttime", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp != NULL) lttv_hooks_call(tmp, &tab->current_time);
+}
+
+/* set_current_position
+ *
+ * It updates the current time of the tab, then calls the updatetimewindow
+ * hooks of each viewer.
+ *
+ * This is called whenever the current time value changes.
+ */
+
+void set_current_position(Tab *tab, const LttvTracesetContextPosition *pos)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+
+ tab->current_time = lttv_traceset_context_position_get_time(pos);
+
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrentposition", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp != NULL) lttv_hooks_call(tmp, pos);
+}
+
+void add_toolbar_constructor(MainWindow *mw, LttvToolbarClosure *toolbar_c)
+{
+ LttvIAttribute *attributes = mw->attributes;
+ LttvAttributeValue value;
+ LttvToolbars * instance_toolbar;
+ lttvwindow_viewer_constructor constructor;
+ GtkWidget * tool_menu_title_menu, *new_widget, *pixmap;
+ GdkPixbuf *pixbuf;
+
+ g_assert(lttv_iattribute_find_by_path(attributes,
+ "viewers/toolbar", LTTV_POINTER, &value));
+ if(*(value.v_pointer) == NULL)
+ *(value.v_pointer) = lttv_toolbars_new();
+ instance_toolbar = (LttvToolbars*)*(value.v_pointer);
+
+ constructor = toolbar_c->con;
+ tool_menu_title_menu = lookup_widget(mw->mwindow,"MToolbar1");
+ pixbuf = gdk_pixbuf_new_from_xpm_data((const char**)toolbar_c->pixmap);
+ pixmap = gtk_image_new_from_pixbuf(pixbuf);
+ new_widget =
+ gtk_toolbar_append_element (GTK_TOOLBAR (tool_menu_title_menu),
+ GTK_TOOLBAR_CHILD_BUTTON,
+ NULL,
+ "",
+ toolbar_c->tooltip, NULL,
+ pixmap, NULL, NULL);
+ gtk_label_set_use_underline(
+ GTK_LABEL (((GtkToolbarChild*) (
+ g_list_last (GTK_TOOLBAR
+ (tool_menu_title_menu)->children)->data))->label),
+ TRUE);
+ gtk_container_set_border_width (GTK_CONTAINER (new_widget), 1);
+ g_signal_connect ((gpointer) new_widget,
+ "clicked",
+ G_CALLBACK (insert_viewer_wrap),
+ constructor);
+ gtk_widget_show (new_widget);
+
+ lttv_toolbars_add(instance_toolbar, toolbar_c->con,
+ toolbar_c->tooltip,
+ toolbar_c->pixmap,
+ new_widget);
+
+}
+
+void add_menu_constructor(MainWindow *mw, LttvMenuClosure *menu_c)
+{
+ LttvIAttribute *attributes = mw->attributes;
+ LttvAttributeValue value;
+ LttvToolbars * instance_menu;
+ lttvwindow_viewer_constructor constructor;
+ GtkWidget * tool_menu_title_menu, *new_widget;
+
+ g_assert(lttv_iattribute_find_by_path(attributes,
+ "viewers/menu", LTTV_POINTER, &value));
+ if(*(value.v_pointer) == NULL)
+ *(value.v_pointer) = lttv_menus_new();
+ instance_menu = (LttvMenus*)*(value.v_pointer);
+
+
+ constructor = menu_c->con;
+ tool_menu_title_menu = lookup_widget(mw->mwindow,"ToolMenuTitle_menu");
+ new_widget =
+ gtk_menu_item_new_with_mnemonic (menu_c->menu_text);
+ gtk_container_add (GTK_CONTAINER (tool_menu_title_menu),
+ new_widget);
+ g_signal_connect ((gpointer) new_widget, "activate",
+ G_CALLBACK (insert_viewer_wrap),
+ constructor);
+ gtk_widget_show (new_widget);
+ lttv_menus_add(instance_menu, menu_c->con,
+ menu_c->menu_path,
+ menu_c->menu_text,
+ new_widget);
+}
+
+void remove_toolbar_constructor(MainWindow *mw, lttvwindow_viewer_constructor viewer_constructor)
+{
+ LttvIAttribute *attributes = mw->attributes;
+ LttvAttributeValue value;
+ LttvToolbars * instance_toolbar;
+ GtkWidget * tool_menu_title_menu, *widget;
+
+ g_assert(lttv_iattribute_find_by_path(attributes,
+ "viewers/toolbar", LTTV_POINTER, &value));
+ if(*(value.v_pointer) == NULL)
+ *(value.v_pointer) = lttv_toolbars_new();
+ instance_toolbar = (LttvToolbars*)*(value.v_pointer);
+
+ tool_menu_title_menu = lookup_widget(mw->mwindow,"MToolbar1");
+ widget = lttv_menus_remove(instance_toolbar, viewer_constructor);
+ gtk_container_remove (GTK_CONTAINER (tool_menu_title_menu),
+ widget);
+}
+
+
+void remove_menu_constructor(MainWindow *mw, lttvwindow_viewer_constructor viewer_constructor)
+{
+ LttvIAttribute *attributes = mw->attributes;
+ LttvAttributeValue value;
+ LttvMenus * instance_menu;
+ GtkWidget * tool_menu_title_menu, *widget;
+
+ g_assert(lttv_iattribute_find_by_path(attributes,
+ "viewers/menu", LTTV_POINTER, &value));
+ if(*(value.v_pointer) == NULL)
+ *(value.v_pointer) = lttv_menus_new();
+ instance_menu = (LttvMenus*)*(value.v_pointer);
+
+ widget = lttv_menus_remove(instance_menu, viewer_constructor);
+ tool_menu_title_menu = lookup_widget(mw->mwindow,"ToolMenuTitle_menu");
+ gtk_container_remove (GTK_CONTAINER (tool_menu_title_menu), widget);
+}
+
+
+/**
+ * API parts
+ */
+
+
+/**
+ * Function to register a view constructor so that main window can generate
+ * a menu item and a toolbar item for the viewer in order to generate a new
+ * instance easily. A menu entry and toolbar item will be added to each main
+ * window.
+ *
+ * It should be called by init function of the module.
+ *
+ * @param name name of the viewer
+ * @param menu_path path of the menu item.
+ * @param menu_text text of the menu item.
+ * @param pixmap Image shown on the toolbar item.
+ * @param tooltip tooltip of the toolbar item.
+ * @param view_constructor constructor of the viewer.
+ */
+
+__EXPORT void lttvwindow_register_constructor
+ (char * name,
+ char * menu_path,
+ char * menu_text,
+ char ** pixmap,
+ char * tooltip,
+ lttvwindow_viewer_constructor view_constructor)
+{
+ LttvIAttribute *attributes_global = LTTV_IATTRIBUTE(lttv_global_attributes());
+ LttvToolbars * toolbar;
+ LttvMenus * menu;
+ LttvToolbarClosure toolbar_c;
+ LttvMenuClosure menu_c;
+ LttvAttributeValue value;
+
+ if(view_constructor == NULL) return;
+
+ if(pixmap != NULL) {
+ g_assert(lttv_iattribute_find_by_path(attributes_global,
+ "viewers/toolbar", LTTV_POINTER, &value));
+ toolbar = (LttvToolbars*)*(value.v_pointer);
+
+ if(toolbar == NULL) {
+ toolbar = lttv_toolbars_new();
+ *(value.v_pointer) = toolbar;
+ }
+ toolbar_c = lttv_toolbars_add(toolbar, view_constructor, tooltip, pixmap,
+ NULL);
+
+ g_slist_foreach(g_main_window_list,
+ (gpointer)add_toolbar_constructor,
+ &toolbar_c);
+ }
+
+ if(menu_path != NULL) {
+ g_assert(lttv_iattribute_find_by_path(attributes_global,
+ "viewers/menu", LTTV_POINTER, &value));
+ menu = (LttvMenus*)*(value.v_pointer);
+
+ if(menu == NULL) {
+ menu = lttv_menus_new();
+ *(value.v_pointer) = menu;
+ }
+ menu_c = lttv_menus_add(menu, view_constructor, menu_path, menu_text,NULL);
+
+ g_slist_foreach(g_main_window_list,
+ (gpointer)add_menu_constructor,
+ &menu_c);
+ }
+ {
+ LttvAttribute *attribute;
+ gboolean result;
+
+ attribute = LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
+ LTTV_IATTRIBUTE(attributes_global),
+ LTTV_VIEWER_CONSTRUCTORS));
+ g_assert(attribute);
+
+ result = lttv_iattribute_find_by_path(LTTV_IATTRIBUTE(attribute),
+ name, LTTV_POINTER, &value);
+ g_assert(result);
+
+ *(value.v_pointer) = view_constructor;
+
+ }
+}
+
+
+/**
+ * Function to unregister the viewer's constructor, release the space
+ * occupied by menu_path, menu_text, pixmap, tooltip and constructor of the
+ * viewer.
+ *
+ * It will be called when a module is unloaded.
+ *
+ * @param view_constructor constructor of the viewer.
+ */
+
+
+__EXPORT void lttvwindow_unregister_constructor
+ (lttvwindow_viewer_constructor view_constructor)
+{
+ LttvIAttribute *attributes_global = LTTV_IATTRIBUTE(lttv_global_attributes());
+ LttvToolbars * toolbar;
+ LttvMenus * menu;
+ LttvAttributeValue value;
+ gboolean is_named;
+
+ g_assert(lttv_iattribute_find_by_path(attributes_global,
+ "viewers/toolbar", LTTV_POINTER, &value));
+ toolbar = (LttvToolbars*)*(value.v_pointer);
+
+ if(toolbar != NULL) {
+ g_slist_foreach(g_main_window_list,
+ (gpointer)remove_toolbar_constructor,
+ view_constructor);
+ lttv_toolbars_remove(toolbar, view_constructor);
+ }
+
+ g_assert(lttv_iattribute_find_by_path(attributes_global,
+ "viewers/menu", LTTV_POINTER, &value));
+ menu = (LttvMenus*)*(value.v_pointer);
+
+ if(menu != NULL) {
+ g_slist_foreach(g_main_window_list,
+ (gpointer)remove_menu_constructor,
+ view_constructor);
+ lttv_menus_remove(menu, view_constructor);
+ }
+
+ {
+ LttvAttribute *attribute;
+ attribute = LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
+ LTTV_IATTRIBUTE(attributes_global),
+ LTTV_VIEWER_CONSTRUCTORS));
+ g_assert(attribute);
+
+ guint num = lttv_iattribute_get_number(LTTV_IATTRIBUTE(attribute));
+ guint i;
+ LttvAttributeName name;
+ LttvAttributeValue value;
+ LttvAttributeType type;
+
+ for(i=0;i<num;i++) {
+ type = lttv_iattribute_get(LTTV_IATTRIBUTE(attribute), i, &name, &value,
+ &is_named);
+ g_assert(type == LTTV_POINTER);
+ if(*(value.v_pointer) == view_constructor) {
+ lttv_iattribute_remove(LTTV_IATTRIBUTE(attribute), i);
+ break;
+ }
+ }
+ }
+}
+
+
+/**
+ * Function to register a hook function for a viewer to set/update its
+ * time interval.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+__EXPORT void lttvwindow_register_time_window_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetimewindow", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook,hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a viewer's hook function which is used to
+ * set/update the time interval of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_time_window_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetimewindow", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * Function to register a hook function for a viewer to set/update its
+ * traceset.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_traceset_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetraceset", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a viewer's hook function which is used to
+ * set/update the traceset of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_traceset_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetraceset", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * Function to register a hook function for a viewer be completely redrawn.
+ *
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_redraw_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/redraw", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a hook function for a viewer be completely redrawn.
+ *
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_redraw_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/redraw", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * Function to register a hook function for a viewer to re-do the events
+ * requests for the needed interval.
+ *
+ * This action is typically done after a "stop".
+ *
+ * The typical hook will remove all current requests for the viewer
+ * and make requests for missing information.
+ *
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_continue_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/continue", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a hook function for a viewer to re-do the events
+ * requests for the needed interval.
+ *
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_continue_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/continue", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+
+/**
+ * Function to register a hook function for a viewer to set/update its
+ * filter.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_filter_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatefilter", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a viewer's hook function which is used to
+ * set/update the filter of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_filter_notify(Tab *tab,
+ LttvHook hook,
+ gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatefilter", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * function to register a hook function for a viewer to set/update its
+ * current time.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_current_time_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrenttime", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * function to unregister a viewer's hook function which is used to
+ * set/update the current time of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_current_time_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrenttime", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * function to register a hook function for a viewer to set/update its
+ * current position.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_register_current_position_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrentposition", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * function to unregister a viewer's hook function which is used to
+ * set/update the current position of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+__EXPORT void lttvwindow_unregister_current_position_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatecurrentposition", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+
+/**
+ * Function to register a hook function for a viewer to show
+ * the content of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+void lttvwindow_register_show_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/showviewer", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a viewer's hook function which is used to
+ * show the content of the viewer..
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+void lttvwindow_unregister_show_notify(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/showviewer", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+/**
+ * Function to register a hook function for a viewer to set/update the
+ * dividor of the hpane.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+void lttvwindow_register_dividor(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/hpanedividor", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL){
+ tmp = lttv_hooks_new();
+ *(value.v_pointer) = tmp;
+ }
+ lttv_hooks_add(tmp, hook, hook_data, LTTV_PRIO_DEFAULT);
+}
+
+
+/**
+ * Function to unregister a viewer's hook function which is used to
+ * set/update hpane's dividor of the viewer.
+ * It will be called by the destructor of the viewer.
+ * @param tab viewer's tab
+ * @param hook hook function of the viewer.
+ * @param hook_data hook data associated with the hook function.
+ */
+
+void lttvwindow_unregister_dividor(Tab *tab,
+ LttvHook hook, gpointer hook_data)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/hpanedividor", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_remove_data(tmp, hook, hook_data);
+}
+
+
+/**
+ * Function to set the time interval of the current tab.
+ * It will be called by a viewer's signal handle associated with
+ * the move_slider signal
+ * @param tab viewer's tab
+ * @param time_interval a pointer where time interval is stored.
+ */
+
+__EXPORT void lttvwindow_report_time_window(Tab *tab,
+ TimeWindow time_window)
+{
+ //set_time_window(tab, time_window);
+ //set_time_window_adjustment(tab, time_window);
+
+ time_change_manager(tab, time_window);
+
+
+#if 0
+ /* Set scrollbar */
+ LttvTracesetContext *tsc =
+ LTTV_TRACESET_CONTEXT(tab->traceset_info->traceset_context);
+ TimeInterval time_span = tsc->time_span;
+ GtkAdjustment *adjustment = gtk_range_get_adjustment(GTK_RANGE(tab->scrollbar));
+ g_object_set(G_OBJECT(adjustment),
+ "lower",
+ 0.0, /* lower */
+ "upper",
+ ltt_time_to_double(
+ ltt_time_sub(time_span.end_time, time_span.start_time))
+ , /* upper */
+ "step_increment",
+ ltt_time_to_double(time_window->time_width)
+ / SCROLL_STEP_PER_PAGE
+ , /* step increment */
+ "page_increment",
+ ltt_time_to_double(time_window->time_width)
+ , /* page increment */
+ "page_size",
+ ltt_time_to_double(time_window->time_width)
+ , /* page size */
+ NULL);
+ gtk_adjustment_changed(adjustment);
+
+ //g_object_set(G_OBJECT(adjustment),
+ // "value",
+ // ltt_time_to_double(time_window->start_time)
+ // , /* value */
+ // NULL);
+ /* Note : the set value will call set_time_window if scrollbar value changed
+ */
+ gtk_adjustment_set_value(adjustment,
+ ltt_time_to_double(
+ ltt_time_sub(time_window->start_time,
+ time_span.start_time))
+ );
+#endif //0
+}
+
+
+/**
+ * Function to set the current time of the current tab.
+ * It will be called by a viewer's signal handle associated with
+ * the button-release-event signal
+ * @param tab viewer's tab
+ * @param time a pointer where time is stored.
+ */
+
+__EXPORT void lttvwindow_report_current_time(Tab *tab,
+ LttTime time)
+{
+ current_time_change_manager(tab, time);
+}
+
+/**
+ * Function to set the current event of the current tab.
+ * It will be called by a viewer's signal handle associated with
+ * the button-release-event signal
+ * @param tab viewer's tab
+ * @param time a pointer where time is stored.
+ */
+
+__EXPORT void lttvwindow_report_current_position(Tab *tab,
+ LttvTracesetContextPosition *pos)
+{
+ current_position_change_manager(tab, pos);
+}
+
+
+/**
+ * Function to set the position of the hpane's dividor (viewer).
+ * It will be called by a viewer's signal handle associated with
+ * the motion_notify_event event/signal
+ * @param tab viewer's tab
+ * @param position position of the hpane's dividor.
+ */
+
+void lttvwindow_report_dividor(Tab *tab, gint position)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/hpanedividor", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_call(tmp, &position);
+}
+
+/**
+ * Function to request data in a specific time interval to the main window. The
+ * event request servicing is differed until the glib idle functions are
+ * called.
+ *
+ * The viewer has to provide hooks that should be associated with the event
+ * request.
+ *
+ * Either start time or start position must be defined in a EventRequest
+ * structure for it to be valid.
+ *
+ * end_time, end_position and num_events can all be defined. The first one
+ * to occur will be used as end criterion.
+ *
+ * @param tab viewer's tab
+ * @param events_requested the structure of request from.
+ */
+
+__EXPORT void lttvwindow_events_request(Tab *tab,
+ EventsRequest *events_request)
+{
+ tab->events_requests = g_slist_append(tab->events_requests, events_request);
+
+ if(!tab->events_request_pending)
+ {
+ /* Redraw has +20 priority. We want to let the redraw be done while we do
+ * our job. Mathieu : test with high prio higher than events for better
+ * scrolling. */
+ /* Mathieu, 2008 : ok, finally, the control flow view needs the cell updates
+ * to come soon enough so we can have one active cell to get the pixmap
+ * buffer height from. Therefore, let the gdk events run before the events
+ * requests.
+ */
+ g_idle_add_full((G_PRIORITY_HIGH_IDLE + 21),
+ //g_idle_add_full((G_PRIORITY_DEFAULT + 2),
+ (GSourceFunc)execute_events_requests,
+ tab,
+ NULL);
+ tab->events_request_pending = TRUE;
+ }
+}
+
+
+/**
+ * Function to remove data requests related to a viewer.
+ *
+ * The existing requests's viewer gpointer is compared to the pointer
+ * given in argument to establish which data request should be removed.
+ *
+ * @param tab the tab the viewer belongs to.
+ * @param viewer a pointer to the viewer data structure
+ */
+
+gint find_viewer (const EventsRequest *a, gconstpointer b)
+{
+ return (a->owner != b);
+}
+
+
+__EXPORT void lttvwindow_events_request_remove_all(Tab *tab,
+ gconstpointer viewer)
+{
+ GSList *element = tab->events_requests;
+
+ while((element =
+ g_slist_find_custom(element, viewer,
+ (GCompareFunc)find_viewer))
+ != NULL) {
+ EventsRequest *events_request = (EventsRequest *)element->data;
+ // Modified so a viewer being destroyed won't have its after_request
+ // called. Not so important anyway. Note that a viewer that call this
+ // remove_all function will not get its after_request called.
+ //if(events_request->servicing == TRUE) {
+ // lttv_hooks_call(events_request->after_request, NULL);
+ //}
+ events_request_free(events_request);
+ //g_free(events_request);
+ tab->events_requests = g_slist_remove_link(tab->events_requests, element);
+ element = g_slist_next(element);
+ if(element == NULL) break; /* end of list */
+ }
+ if(g_slist_length(tab->events_requests) == 0) {
+ tab->events_request_pending = FALSE;
+ g_idle_remove_by_data(tab);
+ }
+
+}
+
+
+/**
+ * Function to see if there are events request pending.
+ *
+ * It tells if events requests are pending. Useful for checks in some events,
+ * i.e. detailed event list scrolling.
+ *
+ * @param tab the tab the viewer belongs to.
+ * @param viewer a pointer to the viewer data structure
+ * @return : TRUE is events requests are pending, else FALSE.
+ */
+
+__EXPORT gboolean lttvwindow_events_request_pending(Tab *tab)
+{
+ GSList *element = tab->events_requests;
+
+ if(element == NULL) return FALSE;
+ else return TRUE;
+}
+
+
+/**
+ * Function to get the current time interval shown on the current tab.
+ * It will be called by a viewer's hook function to update the
+ * shown time interval of the viewer and also be called by the constructor
+ * of the viewer.
+ * @param tab viewer's tab
+ * @return time window.
+ */
+
+__EXPORT TimeWindow lttvwindow_get_time_window(Tab *tab)
+{
+ return tab->time_window;
+}
+
+
+/**
+ * Function to get the current time/event of the current tab.
+ * It will be called by a viewer's hook function to update the
+ * current time/event of the viewer.
+ * @param tab viewer's tab
+ * @return time
+ */
+
+__EXPORT LttTime lttvwindow_get_current_time(Tab *tab)
+{
+ return tab->current_time;
+}
+
+
+/**
+ * Function to get the filter of the current tab.
+ * @param filter, a pointer to a filter.
+ *
+ * returns the current filter
+ */
+__EXPORT LttvFilter *lttvwindow_get_filter(Tab *tab)
+{
+ return g_object_get_data(G_OBJECT(tab->vbox), "filter");
+}
+
+/**
+ * Function to set the filter of the current tab.
+ * It should be called by the filter GUI to tell the
+ * main window to update the filter tab's lttv_filter.
+ *
+ * This function does change the current filter, removing the
+ * old one when necessary, and call the updatefilter hooks
+ * of the registered viewers.
+ *
+ * @param main_win, the main window the viewer belongs to.
+ * @param filter, a pointer to a filter.
+ */
+void lttvwindow_report_filter(Tab *tab, LttvFilter *filter)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+
+ //lttv_filter_destroy(tab->filter);
+ //tab->filter = filter;
+
+ g_assert(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatefilter", LTTV_POINTER, &value));
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return;
+ lttv_hooks_call(tmp, filter);
+}
+
+
+
+/**
+ * Function to get the stats of the traceset
+ * @param tab viewer's tab
+ */
+
+__EXPORT LttvTracesetStats* lttvwindow_get_traceset_stats(Tab *tab)
+{
+ return tab->traceset_info->traceset_context;
+}
+
+__EXPORT LttvTracesetContext* lttvwindow_get_traceset_context(Tab *tab)
+{
+ return (LttvTracesetContext*)tab->traceset_info->traceset_context;
+}
+
+
+void events_request_free(EventsRequest *events_request)
+{
+ if(events_request == NULL) return;
+
+ if(events_request->start_position != NULL)
+ lttv_traceset_context_position_destroy(events_request->start_position);
+ if(events_request->end_position != NULL)
+ lttv_traceset_context_position_destroy(events_request->end_position);
+ if(events_request->hooks != NULL) {
+ GArray *hooks = events_request->hooks;
+ lttv_trace_hook_remove_all(&hooks);
+ g_array_free(events_request->hooks, TRUE);
+ }
+ if(events_request->before_chunk_traceset != NULL)
+ lttv_hooks_destroy(events_request->before_chunk_traceset);
+ if(events_request->before_chunk_trace != NULL)
+ lttv_hooks_destroy(events_request->before_chunk_trace);
+ if(events_request->before_chunk_tracefile != NULL)
+ lttv_hooks_destroy(events_request->before_chunk_tracefile);
+ if(events_request->event != NULL)
+ lttv_hooks_destroy(events_request->event);
+ if(events_request->event_by_id_channel != NULL)
+ lttv_hooks_by_id_channel_destroy(events_request->event_by_id_channel);
+ if(events_request->after_chunk_tracefile != NULL)
+ lttv_hooks_destroy(events_request->after_chunk_tracefile);
+ if(events_request->after_chunk_trace != NULL)
+ lttv_hooks_destroy(events_request->after_chunk_trace);
+ if(events_request->after_chunk_traceset != NULL)
+ lttv_hooks_destroy(events_request->after_chunk_traceset);
+ if(events_request->before_request != NULL)
+ lttv_hooks_destroy(events_request->before_request);
+ if(events_request->after_request != NULL)
+ lttv_hooks_destroy(events_request->after_request);
+
+ g_free(events_request);
+}
+
+
+
+__EXPORT GtkWidget *main_window_get_widget(Tab *tab)
+{
+ return tab->mw->mwindow;
+}
+