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
  13 GtkWidget *hGuiControlFlow(mainWindow *pmParentWindow);
  14
  15 int Event_Selected_Hook(void *hook_data, void *call_data);
  16
  17 /* Hook called before drawing. Gets the initial context at the beginning of the
  18  * drawing interval and copy it to the context in Event_Request.
  19  */
  20 int Draw_Before_Hook(void *hook_data, void *call_data);
  21
  22 /*
  23  * The draw event hook is called by the reading API to have a
  24  * particular event drawn on the screen.
  25  * @param hook_data ControlFlowData structure of the viewer.
  26  * @param call_data Event context.
  27  *
  28  * This function basically draw lines and icons. Two types of lines are drawn :
  29  * one small (3 pixels?) representing the state of the process and the second
  30  * type is thicker (10 pixels?) representing on which CPU a process is running
  31  * (and this only in running state).
  32  *
  33  * Extremums of the lines :
  34  * x_min : time of the last event context for this process kept in memory.
  35  * x_max : time of the current event.
  36  * y : middle of the process in the process list. The process is found in the
  37  * list, therefore is it's position in pixels.
  38  *
  39  * The choice of lines'color is defined by the context of the last event for this
  40  * process.
  41  */
  42 int Draw_Event_Hook(void *hook_data, void *call_data);
  43
  44 int Draw_After_Hook(void *hook_data, void *call_data);
  45
  46 #endif // _EVENT_HOOKS_H