ltt/branches/poly/lttv/modules/guiControlFlow/Event_Hooks.h

   1 /* Event_hooks.c defines the hooks that are given to processTrace as parameter.
   2  * These hooks call the Drawing API to draw the information on the screen,
   3  * using information from Context, but mostly state (running, waiting...).
   4  */
   5
   6
   7 #ifndef _EVENT_HOOKS_H
   8 #define _EVENT_HOOKS_H
   9
  10 #include <gtk/gtk.h>
  11 #include <lttv/mainWindow.h>
  12 #include <ltt/time.h>
  13 #include "Process_List.h"
  14 #include "Drawing.h"
  15 #include "CFV.h"
  16
  17
  18 /* Structure used to store and use information relative to one events refresh
  19  * request. Typically filled in by the expose event callback, then passed to the
  20  * library call, then used by the drawing hooks. Then, once all the events are
  21  * sent, it is freed by the hook called after the reading.
  22  */
  23 typedef struct _EventRequest
  24 {
  25         ControlFlowData *Control_Flow_Data;
  26         LttTime time_begin, time_end;
  27         /* Fill the Events_Context during the initial expose, before calling for
  28          * events.
  29          */
  30         //GArray Events_Context; //FIXME
  31 } EventRequest ;
  32
  33
  34
  35
  36
  37 void send_test_data(ProcessList *Process_List, Drawing_t *Drawing);
  38
  39 GtkWidget *h_guicontrolflow(MainWindow *pmParentWindow, LttvTracesetSelector * s, char * key);
  40
  41 int event_selected_hook(void *hook_data, void *call_data);
  42
  43 /* Hook called before drawing. Gets the initial context at the beginning of the
  44  * drawing interval and copy it to the context in Event_Request.
  45  */
  46 int draw_before_hook(void *hook_data, void *call_data);
  47
  48 /*
  49  * The draw event hook is called by the reading API to have a
  50  * particular event drawn on the screen.
  51  * @param hook_data ControlFlowData structure of the viewer.
  52  * @param call_data Event context.
  53  *
  54  * This function basically draw lines and icons. Two types of lines are drawn :
  55  * one small (3 pixels?) representing the state of the process and the second
  56  * type is thicker (10 pixels?) representing on which CPU a process is running
  57  * (and this only in running state).
  58  *
  59  * Extremums of the lines :
  60  * x_min : time of the last event context for this process kept in memory.
  61  * x_max : time of the current event.
  62  * y : middle of the process in the process list. The process is found in the
  63  * list, therefore is it's position in pixels.
  64  *
  65  * The choice of lines'color is defined by the context of the last event for this
  66  * process.
  67  */
  68 int draw_event_hook(void *hook_data, void *call_data);
  69
  70 int draw_after_hook(void *hook_data, void *call_data);
  71
  72 void update_time_window_hook(void *hook_data, void *call_data);
  73 void update_current_time_hook(void *hook_data, void *call_data);
  74
  75
  76
  77
  78 #endif // _EVENT_HOOKS_H