init/destroy (begin)

[lttv.git] / ltt / branches / poly / lttv / plugins / guiControlFlow.c

diff --git a/ltt/branches/poly/lttv/plugins/guiControlFlow.c b/ltt/branches/poly/lttv/plugins/guiControlFlow.c
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..5f28e98cd8f06a04ef4bbba7e3afd7818fc0715b 100644 (file)
--- a/ltt/branches/poly/lttv/plugins/guiControlFlow.c
+++ b/ltt/branches/poly/lttv/plugins/guiControlFlow.c
@@ -0,0 +1,85 @@
+/*! \defgroup guiEvents libguiControlFlow: The GUI ControlFlow display plugin */
+/*\@{*/
+
+/*! \file guiControlFlow.c
+ * \brief Graphical plugin for showing control flow of a trace.
+ *
+ * This plugin adds a Control Flow Viewer functionnality to Linux TraceToolkit
+ * GUI when this plugin is loaded. The init and destroy functions add the
+ * viewer's insertion menu item and toolbar icon by calling gtkTraceSet's
+ * API functions. Then, when a viewer's object is created, the constructor
+ * creates ans register through API functions what is needed to interact
+ * with the TraceSet window.
+ *
+ * This plugin uses the gdk library to draw the events and gtk to interact
+ * with the user.
+ *
+ * Author : Mathieu Desnoyers, June 2003
+ */
+
+#include <glib.h>
+#include <gmodule.h>
+#include <gtk.h>
+#include <gdk.h>
+
+#include <lttv/module.h>
+
+#include "guiControlFlow.h"
+#include "icons/guiControlFlowInsert.xpm"
+
+//! Event Viewer's constructor
+GtkWidget *guiControlFlow(GtkWidget *ParentWindow);
+
+/**
+ * plugin's init function
+ *
+ * This function initializes the Control Flow Viewer functionnality through the
+ * gtkTraceSet API.
+ */
+G_MODULE_EXPORT void init() {
+       g_critical("GUI ControlFlow Viewer init()");
+
+       /* Register the toolbar insert button */
+       ToolbarItemReg(guiEventsInsert_xpm, "Insert Control Flow Viewer", guiEvent);
+
+       /* Register the menu item insert entry */
+       MenuItemReg("/", "Insert Control Flow Viewer", guiEvent);
+
+}
+
+/**
+ * plugin's destroy function
+ *
+ * This function releases the memory reserved by the module and unregisters
+ * everything that has been registered in the gtkTraceSet API.
+ */
+G_MODULE_EXPORT void destroy() {
+       g_critical("GUI Control Flow Viewer destroy()");
+
+       /* Unregister the toolbar insert button */
+       ToolbarItemUnreg(guiEvent);
+
+       /* Unregister the menu item insert entry */
+       MenuItemUnreg(guiEvents);
+}
+
+/**
+ * Control Flow Viewer's constructor
+ *
+ * This constructor is given as a parameter to the menuitem and toolbar button
+ * registration. It creates the drawing widget.
+ * @param ParentWindow A pointer to the parent window.
+ * @return The widget created.
+ */
+static GtkWidget *
+guiEvents(GtkWidget *ParentWindow)
+{
+       GtkWidget *drawing_area = gtk_drawing_area_new ();
+
+       g_signal_connect (G_OBJECT (drawing_area), "expose_event",
+                          G_CALLBACK (expose_event_callback), NULL);
+}
+
+
+
+/*\@}*/