mainwin makefile.am modif
[lttv.git] / ltt / branches / poly / lttv / modules / guiControlFlow.c
index 5f28e98cd8f06a04ef4bbba7e3afd7818fc0715b..fb6233304ca6be00a9db11f7ee5edb6085bac515 100644 (file)
 
 #include <glib.h>
 #include <gmodule.h>
-#include <gtk.h>
-#include <gdk.h>
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
 
+#include <lttv/hook.h>
 #include <lttv/module.h>
 
-#include "guiControlFlow.h"
-#include "icons/guiControlFlowInsert.xpm"
+//#include "guiControlFlow.h"
+#include "icons/hGuiControlFlowInsert.xpm"
 
-//! Event Viewer's constructor
-GtkWidget *guiControlFlow(GtkWidget *ParentWindow);
+#include "gtktreeprivate.h"
 
+//FIXME by including ltt.h
+#include <time.h>
+typedef time_t ltt_time;
+
+typedef struct _ltt_time_interval
+{
+       ltt_time time_begin, time_end;
+} ltt_time_interval;
+
+
+/*****************************************************************************
+ *                         Definition of structures                          *
+ *****************************************************************************/
+
+typedef struct _DrawingAreaInfo {
+
+       guint height, width;
+
+} DrawingAreaInfo ;
+
+typedef struct _ControlFlowData {
+
+       GtkWidget *Drawing_Area_V;
+       GtkWidget *Scrolled_Window_VC;
+       
+       GtkWidget *Process_List_VC;
+       
+  /* Model containing list data */
+       GtkListStore *Store_M;
+       
+       GtkWidget *HBox_V;
+       GtkWidget *Inside_HBox_V;
+
+  GtkAdjustment *VAdjust_C ;
+       
+       /* Trace information */
+       TraceSet *Trace_Set;
+       TraceStatistics *Trace_Statistics;
+       
+       /* Shown events information */
+       guint First_Event, Last_Event;
+       ltt_time Begin_Time, End_Time;
+       
+       
+       /* Drawing Area Info */
+       DrawingAreaInfo Drawing_Area_Info;
+
+       /* TEST DATA, TO BE READ FROM THE TRACE */
+       gint Number_Of_Events ;
+       guint Currently_Selected_Event  ;
+       gboolean Selected_Event ;
+       guint Number_Of_Process;
+
+} ControlFlowData ;
+
+/* Structure used to store and use information relative to one events refresh
+ * request. Typically filled in by the expose event callback, then passed to the
+ * library call, then used by the drawing hooks. Then, once all the events are
+ * sent, it is freed by the hook called after the reading.
+ */
+typedef struct _EventRequest
+{
+       ControlFlowData *Control_Flow_Data;
+       ltt_time time_begin, time_end;
+       /* Fill the Events_Context during the initial expose, before calling for
+        * events.
+        */
+       GArray Events_Context; //FIXME
+} EventRequest ;
+
+
+/** Array containing instanced objects. Used when module is unloaded */
+static GSList *sControl_Flow_Data_List = NULL ;
+
+
+/*****************************************************************************
+ *                         Function prototypes                               *
+ *****************************************************************************/
+//! Control Flow Viewer's constructor hook
+GtkWidget *hGuiControlFlow(GtkWidget *pmParentWindow);
+//! Control Flow Viewer's constructor
+ControlFlowData *GuiControlFlow(void);
+//! Control Flow Viewer's destructor
+void GuiControlFlow_Destructor(ControlFlowData *Control_Flow_Data);
+
+
+static int Event_Selected_Hook(void *hook_data, void *call_data);
+
+static lttv_hooks
+       *Draw_Before_Hooks,
+       *Draw_Event_Hooks,
+       *Draw_After_Hooks;
+
+Draw_Before_Hook(void *hook_data, void *call_data)
+Draw_Event_Hook(void *hook_data, void *call_data)
+Draw_After_Hook(void *hook_data, void *call_data)
+
+
+//void Tree_V_set_cursor(ControlFlowData *Control_Flow_Data);
+//void Tree_V_get_cursor(ControlFlowData *Control_Flow_Data);
+
+/* Prototype for selection handler callback */
+//static void tree_selection_changed_cb (GtkTreeSelection *selection, gpointer data);
+static void v_scroll_cb (GtkAdjustment *adjustment, gpointer data);
+//static void Tree_V_size_allocate_cb (GtkWidget *widget, GtkAllocation *alloc, gpointer data);
+//static void Tree_V_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, gpointer data);
+//static void Tree_V_cursor_changed_cb (GtkWidget *widget, gpointer data);
+//static void Tree_V_move_cursor_cb (GtkWidget *widget, GtkMovementStep arg1, gint arg2, gpointer data);
+
+static void expose_event_cb (GtkWidget *widget, GdkEventExpose *expose, gpointer data);
+
+void add_test_process(ControlFlowData *Control_Flow_Data);
+
+static void get_test_data(guint Event_Number, guint List_Height, 
+                                                                        ControlFlowData *Control_Flow_Data);
+
+void add_test_data(ControlFlowData *Control_Flow_Data);
+void test_draw(ControlFlowData *Control_Flow_Data);
+
+void Drawing_Area_Init(ControlFlowData *Control_Flow_Data);
+
+
+
+/*****************************************************************************
+ *                 Functions for module loading/unloading                    *
+ *****************************************************************************/
 /**
  * plugin's init function
  *
@@ -40,13 +166,29 @@ G_MODULE_EXPORT void init() {
        g_critical("GUI ControlFlow Viewer init()");
 
        /* Register the toolbar insert button */
-       ToolbarItemReg(guiEventsInsert_xpm, "Insert Control Flow Viewer", guiEvent);
+       //ToolbarItemReg(guiEventsInsert_xpm, "Insert Control Flow Viewer", guiEvent);
 
        /* Register the menu item insert entry */
-       MenuItemReg("/", "Insert Control Flow Viewer", guiEvent);
+       //MenuItemReg("/", "Insert Control Flow Viewer", guiEvent);
+
+       /* Setup the hooks */
+       Draw_Before_Hooks = lttv_hooks_new();
+       Draw_Event_Hooks = lttv_hooks_new();
+       Draw_After_Hooks = lttv_hooks_new();
+       
+       lttv_hooks_add(Draw_Before_Hooks, Draw_Before_Hook, NULL);
+       lttv_hooks_add(Draw_Event_Hooks, Draw_Event_Hook, NULL);
+       lttv_hooks_add(Draw_After_Hooks, Draw_After_Hook, NULL);
+       
+}
 
+void destroy_walk(gpointer data, gpointer user_data)
+{
+       GuiControlFlow_Destructor((ControlFlowData*)data);
 }
 
+
+
 /**
  * plugin's destroy function
  *
@@ -55,14 +197,40 @@ G_MODULE_EXPORT void init() {
  */
 G_MODULE_EXPORT void destroy() {
        g_critical("GUI Control Flow Viewer destroy()");
+       int i;
+
+       ControlFlowData *Control_Flow_Data;
+       
+       g_critical("GUI Event Viewer destroy()");
 
+       g_slist_foreach(sControl_Flow_Data_List, destroy_walk, NULL );
+       
+       lttv_hooks_destroy(Draw_Before_Hooks);
+       lttv_hooks_destroy(Draw_Event_Hooks);
+       lttv_hooks_destroy(Draw_After_Hooks);
+       
        /* Unregister the toolbar insert button */
-       ToolbarItemUnreg(guiEvent);
+       //ToolbarItemUnreg(hGuiEvents);
 
        /* Unregister the menu item insert entry */
-       MenuItemUnreg(guiEvents);
+       //MenuItemUnreg(hGuiEvents);
 }
 
+
+/*****************************************************************************
+ *                     Control Flow Viewer class implementation              *
+ *****************************************************************************/
+
+
+/* Enumeration of the columns */
+enum
+{
+       PROCESS_COLUMN,
+       N_COLUMNS
+};
+
+
+
 /**
  * Control Flow Viewer's constructor
  *
@@ -71,15 +239,535 @@ G_MODULE_EXPORT void destroy() {
  * @param ParentWindow A pointer to the parent window.
  * @return The widget created.
  */
-static GtkWidget *
-guiEvents(GtkWidget *ParentWindow)
+ControlFlowData *
+GuiControlFlow(void)
+{
+
+       GtkTreeViewColumn *column;
+       GtkCellRenderer *renderer;
+
+       ControlFlowData* Control_Flow_Data = g_new(ControlFlowData,1) ;
+       Control_Flow_Data->Drawing_Area_V = gtk_drawing_area_new ();
+
+       
+       /* TEST DATA, TO BE READ FROM THE TRACE */
+       Control_Flow_Data->Number_Of_Events = 1000 ;
+       Control_Flow_Data->Currently_Selected_Event = FALSE  ;
+       Control_Flow_Data->Selected_Event = 0;
+       Control_Flow_Data->Number_Of_Process = 10;
+
+       /* FIXME register Event_Selected_Hook */
+       
+
+
+       /* Create the Process list */
+       Control_Flow_Data->Store_M = gtk_list_store_new ( N_COLUMNS,
+                                                                                                                                                                                                               G_TYPE_STRING);
+
+
+       Control_Flow_Data->Process_List_VC = gtk_tree_view_new_with_model (GTK_TREE_MODEL (Control_Flow_Data->Store_M));
+
+       g_object_unref (G_OBJECT (Control_Flow_Data->Store_M));
+
+       gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(Control_Flow_Data->Process_List_VC), FALSE);
+
+  /* Create a column, associating the "text" attribute of the
+   * cell_renderer to the first column of the model */
+       /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
+  renderer = gtk_cell_renderer_text_new ();
+  column = gtk_tree_view_column_new_with_attributes ("Process",
+                                                                                                                                                                                                                       renderer,
+                                                      "text", PROCESS_COLUMN,
+                                                      NULL);
+       gtk_tree_view_column_set_alignment (column, 0.0);
+       gtk_tree_view_column_set_fixed_width (column, 45);
+  gtk_tree_view_append_column (GTK_TREE_VIEW (Control_Flow_Data->Process_List_VC), column);
+
+
+
+       Control_Flow_Data->Inside_HBox_V = gtk_hbox_new(0, 0);
+
+       gtk_box_pack_start(GTK_BOX(Control_Flow_Data->Inside_HBox_V), Control_Flow_Data->Process_List_VC, FALSE, TRUE, 0);
+       gtk_box_pack_start(GTK_BOX(Control_Flow_Data->Inside_HBox_V), Control_Flow_Data->Drawing_Area_V, TRUE, TRUE, 0);
+
+
+       Control_Flow_Data->VAdjust_C = GTK_ADJUSTMENT(gtk_adjustment_new(0.0,   /* Value */
+                                                                                                                                                                                                               0.0,    /* Lower */
+                                                                                                                                                                                                               0.0,    /* Upper */
+                                                                                                                                                                                                               0.0,                    /* Step inc. */
+                                                                                                                                                                                                               0.0,                    /* Page inc. */
+                                                                                                                                                                                                               0.0     ));     /* page size */
+       
+
+       Control_Flow_Data->Scrolled_Window_VC = gtk_scrolled_window_new (NULL,
+                                                                                                                                                                               Control_Flow_Data->VAdjust_C);
+       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(Control_Flow_Data->Scrolled_Window_VC) ,
+                                                                                                                                       GTK_POLICY_NEVER,
+                                                                                                                                       GTK_POLICY_AUTOMATIC);
+
+       gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(Control_Flow_Data->Scrolled_Window_VC),
+                                                                               Control_Flow_Data->Inside_HBox_V);
+       
+       
+       g_signal_connect (G_OBJECT (Control_Flow_Data->Drawing_Area_V), "expose_event",  
+                         G_CALLBACK (expose_event_cb), Control_Flow_Data);
+
+
+       
+       g_signal_connect (G_OBJECT (Control_Flow_Data->VAdjust_C), "value-changed",
+                         G_CALLBACK (v_scroll_cb),
+                         Control_Flow_Data);
+
+       add_test_process(Control_Flow_Data);
+
+
+
+       /* Set the size of the drawing area */
+       Drawing_Area_Init(Control_Flow_Data);
+
+       /* Get trace statistics */
+       Control_Flow_Data->Trace_Statistics = get_trace_statistics(Trace);
+
+
+       gtk_widget_show(Control_Flow_Data->Drawing_Area_V);
+       gtk_widget_show(Control_Flow_Data->Process_List_VC);
+       gtk_widget_show(Control_Flow_Data->Inside_HBox_V);
+       gtk_widget_show(Control_Flow_Data->Scrolled_Window_VC);
+
+       test_draw(Control_Flow_Data);
+
+       return Control_Flow_Data;
+
+}
+
+void
+GuiControlFlow_Destructor(ControlFlowData *Control_Flow_Data)
+{
+       guint index;
+
+       /* May already been done by GTK window closing */
+       if(GTK_IS_WIDGET(Control_Flow_Data->HBox_V))
+               gtk_widget_destroy(Control_Flow_Data->HBox_V);
+       
+       /* Destroy the Tree View */
+       //gtk_widget_destroy(Control_Flow_Data->Tree_V);
+       
+  /*  Clear raw event list */
+       //gtk_list_store_clear(Control_Flow_Data->Store_M);
+       //gtk_widget_destroy(GTK_WIDGET(Control_Flow_Data->Store_M));
+
+       g_slist_remove(sControl_Flow_Data_List,Control_Flow_Data);
+}
+
+//FIXME : call hGuiEvents_Destructor for corresponding data upon widget destroy
+
+
+
+/*****************************************************************************
+ *                              Drawing functions                            *
+ *****************************************************************************/
+
+typedef enum 
+{
+       RED,
+       GREEN,
+       BLUE,
+       WHITE,
+       BLACK
+
+} ControlFlowColors;
+
+/* Vector of unallocated colors */
+static GdkColor CF_Colors [] = 
+{
+       { 0, 0xffff, 0x0000, 0x0000 },  // RED
+       { 0, 0x0000, 0xffff, 0x0000 },  // GREEN
+       { 0, 0x0000, 0x0000, 0xffff },  // BLUE
+       { 0, 0xffff, 0xffff, 0xffff },  // WHITE
+       { 0, 0x0000, 0x0000, 0x0000 }           // BLACK
+};
+
+
+gint get_cell_height(GtkTreeView *TreeView)
+{
+       gint height, width;
+       GtkTreeViewColumn *Column = gtk_tree_view_get_column(TreeView, 0);
+       GList *Render_List = gtk_tree_view_column_get_cell_renderers(Column);
+       GtkCellRenderer *Renderer = g_list_first(Render_List)->data;
+       
+       gtk_tree_view_column_cell_get_size(Column, NULL, NULL, NULL, NULL, &height);
+       g_critical("cell 0 height : %u",height);
+       
+       return height;
+}
+
+
+/* get_time_from_pixels
+ *
+ * Get the time interval from window time and pixels, and pixels requested. This
+ * function uses TimeMul, which should only be used if the float value is lower
+ * that 4, and here it's always lower than 1, so it's ok.
+ */
+void get_time_from_pixels(guint area_x, guint area_width,
+                                                                                                       guint window_width,
+                                                                                                       ltt_time &window_time_begin, ltt_time &window_time_end,
+                                                                                                       ltt_time &time_begin, ltt_time &time_end)
+{
+       ltt_time window_time_interval;
+       
+       TimeSub(window_time_interval, window_time_end, window_time_begin);
+
+       
+       TimeMul(time_begin, window_time_interval, (area_x/(float)window_width));
+       TimeAdd(time_begin, window_time_begin, time_begin);
+       
+       TimeMul(time_end, window_time_interval, (area_width/(float)window_width));
+       TimeAdd(time_end, time_begin, time_end);
+       
+}
+
+void Drawing_Area_Init(ControlFlowData *Control_Flow_Data)
+{
+       DrawingAreaInfo *Drawing_Area_Info = &Control_Flow_Data->Drawing_Area_Info;
+       guint w;
+
+       w = 500;
+       
+
+       Drawing_Area_Info->height =
+               get_cell_height(GTK_TREE_VIEW(Control_Flow_Data->Process_List_VC))
+                               * Control_Flow_Data->Number_Of_Process ;
+       
+       gtk_widget_modify_bg(Control_Flow_Data->Drawing_Area_V,
+                                                                                        GTK_STATE_NORMAL,
+                                                                                        &CF_Colors[BLACK]);
+                                                                                        
+       
+       gtk_widget_set_size_request (Control_Flow_Data->Drawing_Area_V,
+                                       w,
+                                       Drawing_Area_Info->height);
+       
+       
+}
+
+
+
+void add_test_process(ControlFlowData *Control_Flow_Data)
+{
+       GtkTreeIter iter;
+       int i;
+       gchar *process[] = { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten" };
+
+       for(i=0; i<Control_Flow_Data->Number_Of_Process; i++)
+       {
+         /* Add a new row to the model */
+               gtk_list_store_append (Control_Flow_Data->Store_M, &iter);
+               gtk_list_store_set (Control_Flow_Data->Store_M, &iter,
+                                                                                               PROCESS_COLUMN, process[i],
+                                                                                               -1);
+       }
+                                                       
+}
+       
+
+
+void test_draw(ControlFlowData *Control_Flow_Data)
+{
+       /* Draw event states using available height, Number of process, cell height
+        * (don't forget to remove two pixels at beginning and end).
+        * For horizontal : use width, Time_Begin, Time_End.
+        * This function calls the reading library to get the draw_hook called 
+        * for the desired period of time. */
+       
+       DrawingAreaInfo *Drawing_Area_Info = &Control_Flow_Data->Drawing_Area_Info;
+
+       
+}
+
+
+/*****************************************************************************
+ *                       Hooks to be called by the main window               *
+ *****************************************************************************/
+/**
+ * Event Viewer's constructor hook
+ *
+ * This constructor is given as a parameter to the menuitem and toolbar button
+ * registration. It creates the list.
+ * @param pmParentWindow A pointer to the parent window.
+ * @return The widget created.
+ */
+GtkWidget *
+hGuiControlFlow(GtkWidget *pmParentWindow)
 {
-       GtkWidget *drawing_area = gtk_drawing_area_new ();
+       ControlFlowData* Control_Flow_Data = GuiControlFlow() ;
 
-       g_signal_connect (G_OBJECT (drawing_area), "expose_event",
-                          G_CALLBACK (expose_event_callback), NULL);
+       return Control_Flow_Data->HBox_V ;
+       
 }
 
+int Event_Selected_Hook(void *hook_data, void *call_data)
+{
+       ControlFlowData *Control_Flow_Data = (ControlFlowData*) hook_data;
+       guint *Event_Number = (guint*) call_data;
+
+       g_critical("DEBUG : event selected by main window : %u", *Event_Number);
+       
+//     Control_Flow_Data->Currently_Selected_Event = *Event_Number;
+//     Control_Flow_Data->Selected_Event = TRUE ;
+       
+//     Tree_V_set_cursor(Control_Flow_Data);
+
+}
+
+
+/* Hook called before drawing. Gets the initial context at the beginning of the
+ * drawing interval and copy it to the context in Event_Request.
+ */
+Draw_Before_Hook(void *hook_data, void *call_data)
+{
+       EventRequest *Event_Request = (EventRequest*)hook_data;
+       EventsContext Events_Context = (EventsContext*)call_data;
+       
+       Event_Request->Events_Context = Events_Context;
+}
+
+/*
+ * The draw event hook is called by the reading API to have a
+ * particular event drawn on the screen.
+ * @param hook_data ControlFlowData structure of the viewer. 
+ * @param call_data Event context.
+ *
+ * This function basically draw lines and icons. Two types of lines are drawn :
+ * one small (3 pixels?) representing the state of the process and the second
+ * type is thicker (10 pixels?) representing on which CPU a process is running
+ * (and this only in running state).
+ *
+ * Extremums of the lines :
+ * x_min : time of the last event context for this process kept in memory.
+ * x_max : time of the current event.
+ * y : middle of the process in the process list. The process is found in the
+ * list, therefore is it's position in pixels.
+ *
+ * The choice of lines'color is defined by the context of the last event for this
+ * process.
+ */
+Draw_Event_Hook(void *hook_data, void *call_data)
+{
+       EventRequest *Event_Request = (EventRequest*)hook_data;
+
+}
+
+
+Draw_After_Hook(void *hook_data, void *call_data)
+{
+       EventRequest *Event_Request = (EventRequest*)hook_data;
+       
+       g_free(Event_Request);
+}
 
+/*****************************************************************************
+ *                       Callbacks used for the viewer                       *
+ *****************************************************************************/
+void expose_event_cb (GtkWidget *widget, GdkEventExpose *expose, gpointer data)
+{
+       ControlFlowData *Control_Flow_Data = (ControlFlowData*)data;
+
+       EventRequest *Event_Request = g_new(sizeof(EventRequest));
+       
+       Event_Request->Control_Flow_Data = Control_Flow_Data;
+       
+       /* Calculate, from pixels in expose, the time interval to get data */
+       
+       get_time_from_pixels(expose->area.x, expose->area.width,
+                                                                                                       Control_Flow_Data->Drawing_Area_Info.width,
+                                                                                                       &Control_Flow_Data->Begin_Time, &Control_Flow_Data->End_Time,
+                                                                                                       &Event_Request->time_begin, &Event_Request->time_end)
+       
+       /* Look in statistics of the trace the processes present during the
+        * whole time interval _shown on the screen_. Modify the list of 
+        * processes to match it. NOTE : modify, not recreate. If recreation is
+        * needed,keep a pointer to the currently selected event in the list.
+        */
+       
+       /* Call the reading API to have events sent to drawing hooks */
+       lttv_trace_set_process( Control_Flow_Data->Trace_Set,
+                                                                                                       Draw_Before_Hooks,
+                                                                                                       Draw_Event_Hooks,
+                                                                                                       Draw_After_Hooks,
+                                                                                                       NULL, //FIXME : filter here
+                                                                                                       Event_Request->time_begin,
+                                                                                                       Event_Request->time_end);
+
+}
+
+#ifdef DEBUG
+void test_draw() {
+       gint cell_height = get_cell_height(GTK_TREE_VIEW(Control_Flow_Data->Process_List_VC));
+       GdkGC *GC = gdk_gc_new(widget->window);
+       GdkColor color = CF_Colors[GREEN];
+       
+       gdk_color_alloc (gdk_colormap_get_system () , &color);
+       
+       g_critical("expose");
+
+       /* When redrawing, use widget->allocation.width to get the width of
+        * drawable area. */
+       Control_Flow_Data->Drawing_Area_Info.width = widget->allocation.width;
+       
+       test_draw(Control_Flow_Data);
+       
+       gdk_gc_copy(GC,widget->style->white_gc);
+       gdk_gc_set_foreground(GC,&color);
+       
+       //gdk_draw_arc (widget->window,
+  //              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
+  //              TRUE,
+  //              //0, 0, widget->allocation.width, widget->allocation.height,
+  //              0, 0, widget->allocation.width,
+       //                                                      Control_Flow_Data->Drawing_Area_Info.height,
+  //              0, 64 * 360);
+
+       
+       //Drawing_Area_Init(Control_Flow_Data);
+       
+       // 2 pixels for the box around the drawing area, 1 pixel for off-by-one
+       // (starting from 0)
+       //gdk_gc_copy (&GC, widget->style->fg_gc[GTK_WIDGET_STATE (widget)]);
+
+       gdk_gc_set_line_attributes(GC,12, GDK_LINE_SOLID, GDK_CAP_NOT_LAST,GDK_JOIN_MITER);
+       
+       gdk_draw_line (widget->window,
+                 GC,
+                                                                0, (cell_height-1)/2,
+                                                                widget->allocation.width, (cell_height-1)/2);
+
+       color = CF_Colors[BLUE];
+       
+       gdk_color_alloc (gdk_colormap_get_system () , &color);
+       
+       gdk_gc_set_foreground(GC,&color);
+
+
+               gdk_gc_set_line_attributes(GC,3, GDK_LINE_SOLID, GDK_CAP_NOT_LAST,GDK_JOIN_MITER);
+       
+       gdk_draw_line (widget->window,
+                 GC,
+                                                                0, (cell_height-1)/2,
+                                                                widget->allocation.width,(cell_height-1)/2);
+       
+
+
+
+
+
+       g_object_unref(GC);
+       
+       //gdk_colormap_alloc_colors(gdk_colormap_get_system(), TRUE, 
+               
+       //gdk_gc_set_line_attributes(GC,5, GDK_LINE_SOLID, GDK_CAP_NOT_LAST,GDK_JOIN_MITER);
+       //gdk_gc_set_foreground(GC, 
+
+       //gdk_draw_line (widget->window,
+  //               GC,
+       //                                                       0, (2*cell_height)-2-1,
+       //                                                       50, (2*cell_height)-2-1);
+
+}
+#endif //DEBUG
+
+void v_scroll_cb (GtkAdjustment *adjustment, gpointer data)
+{
+       ControlFlowData *Control_Flow_Data = (ControlFlowData*)data;
+       GtkTreePath *Tree_Path;
+
+       g_critical("DEBUG : scroll signal, value : %f", adjustment->value);
+       
+       //get_test_data((int)adjustment->value, Control_Flow_Data->Num_Visible_Events, 
+       //                                                               Control_Flow_Data);
+       
+       
+
+}
+
+
+
+
+
+
+static void destroy_cb( GtkWidget *widget,
+                                       gpointer   data )
+{ 
+           gtk_main_quit ();
+}
+
+
+
+/*****************************************************************************
+ *                                test routines                              *
+ *****************************************************************************/
+
+
+int main(int argc, char **argv)
+{
+       GtkWidget *Window;
+       GtkWidget *CF_Viewer;
+       GtkWidget *VBox_V;
+       GtkWidget *HScroll_VC;
+       ControlFlowData *Control_Flow_Data;
+       guint ev_sel = 444 ;
+       /* Horizontal scrollbar and it's adjustment */
+       GtkWidget *VScroll_VC;
+  GtkAdjustment *VAdjust_C ;
+       
+       /* Initialize i18n support */
+  gtk_set_locale ();
+
+  /* Initialize the widget set */
+  gtk_init (&argc, &argv);
+
+       init();
+
+  Window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+       gtk_window_set_title (GTK_WINDOW (Window), ("Test Window"));
+       
+       g_signal_connect (G_OBJECT (Window), "destroy",
+                       G_CALLBACK (destroy_cb), NULL);
+
+
+  VBox_V = gtk_vbox_new(0, 0);
+       gtk_container_add (GTK_CONTAINER (Window), VBox_V);
+
+  //ListViewer = hGuiEvents(Window);
+  //gtk_box_pack_start(GTK_BOX(VBox_V), ListViewer, TRUE, TRUE, 0);
+
+  //ListViewer = hGuiEvents(Window);
+  //gtk_box_pack_start(GTK_BOX(VBox_V), ListViewer, FALSE, TRUE, 0);
+       
+       Control_Flow_Data = GuiControlFlow();
+       CF_Viewer = Control_Flow_Data->Scrolled_Window_VC;
+  gtk_box_pack_start(GTK_BOX(VBox_V), CF_Viewer, TRUE, TRUE, 0);
+
+  /* Create horizontal scrollbar and pack it */
+  HScroll_VC = gtk_hscrollbar_new(NULL);
+  gtk_box_pack_start(GTK_BOX(VBox_V), HScroll_VC, FALSE, TRUE, 0);
+       
+       
+  gtk_widget_show (HScroll_VC);
+  gtk_widget_show (VBox_V);
+       gtk_widget_show (Window);
+
+       //Event_Selected_Hook(Control_Flow_Data, &ev_sel);
+       
+       gtk_main ();
+
+       g_critical("main loop finished");
+  
+       //hGuiEvents_Destructor(ListViewer);
+
+       //g_critical("GuiEvents Destructor finished");
+       destroy();
+       
+       return 0;
+}
 
 /*\@}*/
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