ltt/branches/poly/lttv/modules/gui/ControlFlow/eventhooks.h

   1 /* eventhooks.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
  14 #include "processlist.h"
  15 #include "drawing.h"
  16 #include "cfv.h"
  17
  18
  19 /* Structure used to store and use information relative to one events refresh
  20  * request. Typically filled in by the expose event callback, then passed to the
  21  * library call, then used by the drawing hooks. Then, once all the events are
  22  * sent, it is freed by the hook called after the reading.
  23  */
  24 typedef struct _EventRequest
  25 {
  26   ControlFlowData *control_flow_data;
  27   LttTime time_begin, time_end;
  28   gint  x_begin, x_end;
  29   /* Fill the Events_Context during the initial expose, before calling for
  30    * events.
  31    */
  32   //GArray Events_Context; //FIXME
  33 } EventRequest ;
  34
  35
  36
  37
  38
  39 void send_test_data(ProcessList *process_list, Drawing_t *drawing);
  40
  41 GtkWidget *h_guicontrolflow(MainWindow *mw, LttvTracesetSelector * s, char * key);
  42
  43 int event_selected_hook(void *hook_data, void *call_data);
  44
  45 /* Hook called before drawing. Gets the initial context at the beginning of the
  46  * drawing interval and copy it to the context in event_request.
  47  */
  48 int draw_before_hook(void *hook_data, void *call_data);
  49
  50 /*
  51  * The draw event hook is called by the reading API to have a
  52  * particular event drawn on the screen.
  53  * @param hook_data ControlFlowData structure of the viewer.
  54  * @param call_data Event context.
  55  *
  56  * This function basically draw lines and icons. Two types of lines are drawn :
  57  * one small (3 pixels?) representing the state of the process and the second
  58  * type is thicker (10 pixels?) representing on which CPU a process is running
  59  * (and this only in running state).
  60  *
  61  * Extremums of the lines :
  62  * x_min : time of the last event context for this process kept in memory.
  63  * x_max : time of the current event.
  64  * y : middle of the process in the process list. The process is found in the
  65  * list, therefore is it's position in pixels.
  66  *
  67  * The choice of lines'color is defined by the context of the last event for this
  68  * process.
  69  */
  70 int draw_event_hook(void *hook_data, void *call_data);
  71
  72 int draw_after_hook(void *hook_data, void *call_data);
  73
  74 void draw_closure(gpointer key, gpointer value, gpointer user_data);
  75
  76 int  after_data_request(void *hook_data, void *call_data);
  77
  78
  79 gint update_time_window_hook(void *hook_data, void *call_data);
  80 gint update_current_time_hook(void *hook_data, void *call_data);
  81
  82
  83
  84
  85 #endif // _EVENT_HOOKS_H