ltt/branches/poly/lttv/plugins/guiControlFlow.c

   1 /*! \defgroup guiEvents libguiControlFlow: The GUI ControlFlow display plugin */
   2 /*\@{*/
   3
   4 /*! \file guiControlFlow.c
   5  * \brief Graphical plugin for showing control flow of a trace.
   6  *
   7  * This plugin adds a Control Flow Viewer functionnality to Linux TraceToolkit
   8  * GUI when this plugin is loaded. The init and destroy functions add the
   9  * viewer's insertion menu item and toolbar icon by calling gtkTraceSet's
  10  * API functions. Then, when a viewer's object is created, the constructor
  11  * creates ans register through API functions what is needed to interact
  12  * with the TraceSet window.
  13  *
  14  * This plugin uses the gdk library to draw the events and gtk to interact
  15  * with the user.
  16  *
  17  * Author : Mathieu Desnoyers, June 2003
  18  */
  19
  20 #include <glib.h>
  21 #include <gmodule.h>
  22 #include <gtk.h>
  23 #include <gdk.h>
  24
  25 #include <lttv/module.h>
  26
  27 #include "guiControlFlow.h"
  28 #include "icons/guiControlFlowInsert.xpm"
  29
  30 //! Event Viewer's constructor
  31 GtkWidget *guiControlFlow(GtkWidget *ParentWindow);
  32
  33 /**
  34  * plugin's init function
  35  *
  36  * This function initializes the Control Flow Viewer functionnality through the
  37  * gtkTraceSet API.
  38  */
  39 G_MODULE_EXPORT void init() {
  40         g_critical("GUI ControlFlow Viewer init()");
  41
  42         /* Register the toolbar insert button */
  43         ToolbarItemReg(guiEventsInsert_xpm, "Insert Control Flow Viewer", guiEvent);
  44
  45         /* Register the menu item insert entry */
  46         MenuItemReg("/", "Insert Control Flow Viewer", guiEvent);
  47
  48 }
  49
  50 /**
  51  * plugin's destroy function
  52  *
  53  * This function releases the memory reserved by the module and unregisters
  54  * everything that has been registered in the gtkTraceSet API.
  55  */
  56 G_MODULE_EXPORT void destroy() {
  57         g_critical("GUI Control Flow Viewer destroy()");
  58
  59         /* Unregister the toolbar insert button */
  60         ToolbarItemUnreg(guiEvent);
  61
  62         /* Unregister the menu item insert entry */
  63         MenuItemUnreg(guiEvents);
  64 }
  65
  66 /**
  67  * Control Flow Viewer's constructor
  68  *
  69  * This constructor is given as a parameter to the menuitem and toolbar button
  70  * registration. It creates the drawing widget.
  71  * @param ParentWindow A pointer to the parent window.
  72  * @return The widget created.
  73  */
  74 static GtkWidget *
  75 guiEvents(GtkWidget *ParentWindow)
  76 {
  77         GtkWidget *drawing_area = gtk_drawing_area_new ();
  78
  79         g_signal_connect (G_OBJECT (drawing_area), "expose_event",
  80                           G_CALLBACK (expose_event_callback), NULL);
  81 }
  82
  83
  84
  85 /*\@}*/