+/* 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.
+ *
+ */
+
+#include <ltt/ltt.h>
+#include <lttv/lttv.h>
+#include <lttv/state.h>
+#include <lttv/stats.h>
+#include <lttv/tracecontext.h>
+#include <lttvwindow/common.h>
+#include <lttvwindow/mainwindow.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;
+
+/**
+ * Function to set/update traceset for the viewers
+ * @param tab viewer's tab
+ * @param traceset traceset of the main window.
+ * return value :
+ * -1 : error
+ * 0 : traceset updated
+ * 1 : no traceset hooks to update; not an error.
+ */
+
+int SetTraceset(Tab * tab, gpointer traceset)
+{
+ LttvHooks * tmp;
+ LttvAttributeValue value;
+
+ if( lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatetraceset", LTTV_POINTER, &value) != 0)
+ return -1;
+
+ tmp = (LttvHooks*)*(value.v_pointer);
+ if(tmp == NULL) return 1;
+
+
+ lttv_hooks_call(tmp,traceset);
+
+ return 0;
+}
+
+
+/**
+ * Function to set/update filter for the viewers
+ * @param tab viewer's tab
+ * @param filter filter of the main window.
+ * return value :
+ * -1 : error
+ * 0 : filters updated
+ * 1 : no filter hooks to update; not an error.
+ */
+
+int SetFilter(Tab * tab, gpointer filter)
+{
+ LttvHooks * tmp;
+ LttvAttributeValue value;
+
+ if(lttv_iattribute_find_by_path(tab->attributes,
+ "hooks/updatefilter", LTTV_POINTER, &value) != 0)
+ return -1;
+
+ tmp = (LttvHooks*)*(value.v_pointer);
+
+ if(tmp == NULL) return 1;
+ lttv_hooks_call(tmp,filter);
+
+ return 0;
+}
+
+/**
+ * Function to redraw each viewer belonging to the current tab
+ * @param tab viewer's tab
+ */
+
+void update_traceset(Tab *tab)
+{
+ 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_call(tmp, NULL);
+}
+
+void set_time_window_adjustment(Tab *tab, const TimeWindow* new_time_window)
+{
+ gtk_multi_vpaned_set_adjust(tab->multi_vpaned, new_time_window, FALSE);
+}
+
+
+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) return;
+ lttv_hooks_call(tmp, &time_window_notify_data);
+
+
+}
+
+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;
+ lttvwindow_viewer_constructor constructor;
+ 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;
+ lttvwindow_viewer_constructor constructor;
+ GtkWidget * tool_menu_title_menu, *widget;
+ LttvMenuClosure *menu_item_i;
+
+ 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 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.
+ */
+
+void lttvwindow_register_constructor
+ (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(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);
+ }
+}
+
+
+/**
+ * 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.
+ */
+
+
+void lttvwindow_unregister_constructor
+ (lttvwindow_viewer_constructor view_constructor)
+{
+ LttvIAttribute *attributes_global = LTTV_IATTRIBUTE(lttv_global_attributes());
+ LttvToolbars * toolbar;
+ LttvMenus * menu;
+ LttvAttributeValue value;
+
+ 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);
+ }
+}
+
+
+/**
+ * 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.
+ */
+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.
+ */
+
+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.
+ */
+
+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.
+ */
+
+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 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.
+ */
+
+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.
+ */
+
+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.
+ */
+
+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.
+ */
+
+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 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);
+}
+
+
+/**
+ * Update the status bar whenever something changed in the viewer.
+ * @param tab viewer's tab
+ * @param info the message which will be shown in the status bar.
+ */
+
+void lttvwindow_report_status(Tab *tab, const char *info)
+{
+ //FIXME
+ g_warning("update_status not implemented in viewer.c");
+ // Use tab->mw for status
+}
+
+/**
+ * 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.
+ */
+
+void lttvwindow_report_time_window(Tab *tab,
+ const TimeWindow *time_window)
+{
+ set_time_window(tab, time_window);
+ set_time_window_adjustment(tab, time_window);
+}
+
+
+/**
+ * Function to set the current time/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.
+ */
+
+void lttvwindow_report_current_time(Tab *tab,
+ const LttTime *time)
+{
+ LttvAttributeValue value;
+ LttvHooks * tmp;
+ tab->current_time = *time;
+ 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_call(tmp, &tab->current_time);
+}
+
+/**
+ * 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 set the focused pane (viewer).
+ * It will be called by a viewer's signal handle associated with
+ * the grab_focus signal
+ * @param tab viewer's tab
+ * @param top_widget the top widget containing all the other widgets of the
+ * viewer.
+ */
+
+void lttvwindow_report_focus(Tab *tab, GtkWidget *top_widget)
+{
+ gtk_multi_vpaned_set_focus((GtkWidget*)tab->multi_vpaned,
+ GTK_PANED(gtk_widget_get_parent(top_widget)));
+}
+
+
+/**
+ * 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.
+ */
+
+void lttvwindow_events_request(Tab *tab,
+ const EventsRequest *events_request)
+{
+ EventsRequest *alloc = g_new(sizeof(EventsRequest,1));
+ *alloc = *events_request;
+
+ tab->events_requests = g_slist_append(tab->events_requests, alloc);
+
+ if(!tab->events_request_pending)
+ {
+ /* Redraw has +20 priority. We want a prio higher than that, so +19 */
+ g_idle_add_full((G_PRIORITY_HIGH_IDLE + 19),
+ (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->viewer != b);
+}
+
+
+void lttvwindow_events_request_remove_all(Tab *tab,
+ gconstpointer viewer)
+{
+ GSList *element;
+
+ while((element =
+ g_slist_find_custom(tab->events_requests, viewer,
+ (GCompareFunc)find_viewer))
+ != NULL) {
+ EventRequest *events_request = (EventsRequest *)element->data;
+ if(events_request->servicing == TRUE) {
+ lttv_hooks_call(events_request->after_request, NULL);
+ }
+ g_free(events_request);
+ tab->events_requests = g_slist_remove_link(tab->events_requests, element);
+
+ }
+}
+
+
+
+/**
+ * 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
+ * @param time_interval a pointer where time interval will be stored.
+ */
+
+const 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
+ * @param time a pointer where time will be stored.
+ */
+
+const LttTime *lttvwindow_get_current_time(Tab *tab)
+{
+ return &(tab->current_time);
+}
+
+
+/**
+ * Function to get the filter of the current tab.
+ * It will be called by the constructor of the viewer and also be
+ * called by a hook funtion of the viewer to update its filter.
+ * @param tab viewer's tab
+ * @param filter, a pointer to a filter.
+ */
+const lttv_filter *lttvwindow_get_filter(Tab *tab)
+{
+ //FIXME
+ g_warning("lttvwindow_get_filter not implemented in viewer.c");
+}
+
+
+/**
+ * Function to get the stats of the traceset
+ * @param tab viewer's tab
+ */
+
+LttvTracesetStats* lttvwindow_get_traceset_stats(Tab *tab)
+{
+ return tab->traceset_info->traceset_context;
+}
+
+
+LttvTracesetContext* lttvwindow_get_traceset_context(Tab *tab)
+{
+ return (LttvTracesetContext*)tab->traceset_info->traceset_context;
+}