[lttv.git] / ltt / branches / poly / lttv / modules / guiControlFlow / Drawing.c


#include <gtk/gtk.h>
#include <gdk/gdk.h>

#include <lttv/processTrace.h>
#include <lttv/gtkTraceSet.h>
#include <lttv/hook.h>

#include "Drawing.h"
#include "CFV.h"
#include "CFV-private.h"
#include "Event_Hooks.h"

#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
#define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)

/*****************************************************************************
 *                              Drawing functions                            *
 *****************************************************************************/

//FIXME Colors will need to be dynamic. Graphic context part not done so far.
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
};


/* Function responsible for updating the exposed area.
 * It must call processTrace() to ask for this update.
 * Note : this function cannot clear the background, because it may
 * erase drawing already present (SAFETY).
 */
void drawing_data_request(Drawing_t *Drawing,
			GdkPixmap **Pixmap,
			gint x, gint y,
		  gint width,
			gint height)
{
  if(width < 0) return ;
  if(height < 0) return ;
	ControlFlowData *control_flow_data =
			(ControlFlowData*)g_object_get_data(
								G_OBJECT(
										Drawing->Drawing_Area_V),
								"Control_Flow_Data");

	LttTime start, end;
	LttTime window_end = ltt_time_add(control_flow_data->Time_Window.time_width,
												control_flow_data->Time_Window.start_time);

	g_critical("req : window_end : %u, %u", window_end.tv_sec, 
																			window_end.tv_nsec);

	g_critical("req : time width : %u, %u", control_flow_data->Time_Window.time_width.tv_sec, 
																control_flow_data->Time_Window.time_width.tv_nsec);
	
	g_critical("x is : %i, x+width is : %i", x, x+width);

	convert_pixels_to_time(Drawing->Drawing_Area_V->allocation.width, x,
				&control_flow_data->Time_Window.start_time,
				&window_end,
				&start);

	convert_pixels_to_time(Drawing->Drawing_Area_V->allocation.width, x + width,
				&control_flow_data->Time_Window.start_time,
				&window_end,
				&end);
	
	LttvTracesetContext * tsc =
				get_traceset_context(control_flow_data->Parent_Window);
	
    //send_test_process(
	//guicontrolflow_get_process_list(Drawing->Control_Flow_Data),
	//Drawing);
  //send_test_drawing(
	//guicontrolflow_get_process_list(Drawing->Control_Flow_Data),
	//Drawing, *Pixmap, x, y, width, height);
  
	// Let's call processTrace() !!
	EventRequest event_request; // Variable freed at the end of the function.
	event_request.Control_Flow_Data = control_flow_data;
	event_request.time_begin = start;
	event_request.time_end = end;

	g_critical("req : start : %u, %u", event_request.time_begin.tv_sec, 
																			event_request.time_begin.tv_nsec);

	g_critical("req : end : %u, %u", event_request.time_end.tv_sec, 
																			event_request.time_end.tv_nsec);
	
	LttvHooks *event = lttv_hooks_new();
	state_add_event_hooks_api(control_flow_data->Parent_Window);
	lttv_hooks_add(event, draw_event_hook, &event_request);

	lttv_process_traceset_seek_time(tsc, start);
	lttv_traceset_context_add_hooks(tsc,
			NULL, NULL, NULL, NULL, NULL, NULL,
			NULL, NULL, NULL, event, NULL);
	lttv_process_traceset(tsc, end, G_MAXULONG);
	lttv_traceset_context_remove_hooks(tsc, NULL, NULL, NULL, NULL, NULL, NULL,
			NULL, NULL, NULL, event, NULL);

	state_remove_event_hooks_api(control_flow_data->Parent_Window);
	lttv_hooks_destroy(event);
}
		      
/* Callbacks */


/* Create a new backing pixmap of the appropriate size */
/* As the scaling will always change, it's of no use to copy old
 * pixmap.
 */
static gboolean
configure_event( GtkWidget *widget, GdkEventConfigure *event, 
		gpointer user_data)
{
  Drawing_t *Drawing = (Drawing_t*)user_data;


	/* First, get the new time interval of the main window */
	/* we assume (see documentation) that the main window
	 * has updated the time interval before this configure gets
	 * executed.
	 */
	get_time_window(Drawing->Control_Flow_Data->Parent_Window,
				&Drawing->Control_Flow_Data->Time_Window);
	
  /* New Pixmap, size of the configure event */
  //GdkPixmap *Pixmap = gdk_pixmap_new(widget->window,
	//		  widget->allocation.width + SAFETY,
	//		  widget->allocation.height + SAFETY,
	//		  -1);
	
  g_critical("drawing configure event");
	g_critical("New draw size : %i by %i",widget->allocation.width, widget->allocation.height);
	
		
	if (Drawing->Pixmap)
    gdk_pixmap_unref(Drawing->Pixmap);
	
  /* If no old Pixmap present */
  //if(Drawing->Pixmap == NULL)
  {
  	Drawing->Pixmap = gdk_pixmap_new(
		widget->window,
		widget->allocation.width + SAFETY,
		widget->allocation.height + SAFETY,
		//ProcessList_get_height
		// (GuiControlFlow_get_Process_List(Drawing->Control_Flow_Data)),
		-1);
		Drawing->width = widget->allocation.width;
		Drawing->height = widget->allocation.height;
		

 		// Clear the image
	  gdk_draw_rectangle (Drawing->Pixmap,
		      widget->style->white_gc,
		      TRUE,
		      0, 0,
		      widget->allocation.width+SAFETY,
		      widget->allocation.height+SAFETY);

		//g_info("init data request");


		/* Initial data request */
		// Do not need to ask for data of 1 pixel : not synchronized with
		// main window time at this moment.
 		drawing_data_request(Drawing, &Drawing->Pixmap, 0, 0,
		   	widget->allocation.width,
				widget->allocation.height);
		                      
	  Drawing->width = widget->allocation.width;
 	 	Drawing->height = widget->allocation.height;

  	return TRUE;


  }
#ifdef NOTUSE
//  /* Draw empty background */ 
//  gdk_draw_rectangle (Pixmap,
//		      widget->style->black_gc,
//		      TRUE,
//		      0, 0,
//		      widget->allocation.width,
//		      widget->allocation.height);
  
 	/* Copy old data to new pixmap */
 	gdk_draw_drawable (Pixmap,
	  widget->style->white_gc,
	  Drawing->Pixmap,
	  0, 0,
	  0, 0,
	  -1, -1);
		
  if (Drawing->Pixmap)
    gdk_pixmap_unref(Drawing->Pixmap);

  Drawing->Pixmap = Pixmap;
		
 	// Clear the bottom part of the image (SAFETY)
  gdk_draw_rectangle (Pixmap,
		      widget->style->white_gc,
		      TRUE,
		      0, Drawing->height+SAFETY,
		      Drawing->width+SAFETY,	// do not overlap
		      (widget->allocation.height) - Drawing->height);

 	// Clear the right part of the image (SAFETY)
  gdk_draw_rectangle (Pixmap,
		      widget->style->white_gc,
		      TRUE,
		      Drawing->width+SAFETY, 0,
		      (widget->allocation.width) - Drawing->width,	// do not overlap
		      Drawing->height+SAFETY);

	/* Clear the backgound for data request, but not SAFETY */
	gdk_draw_rectangle (Pixmap,
	 				Drawing->Drawing_Area_V->style->white_gc,
		      TRUE,
		      Drawing->width + SAFETY, 0,
		      widget->allocation.width - Drawing->width,	// do not overlap
		      widget->allocation.height+SAFETY);

  /* Request data for missing space */
	g_info("missing data request");
  drawing_data_request(Drawing, &Pixmap, Drawing->width, 0,
	   	widget->allocation.width - Drawing->width,
			widget->allocation.height);
		                      
  Drawing->width = widget->allocation.width;
  Drawing->height = widget->allocation.height;

  return TRUE;
#endif //NOTUSE
}


/* Redraw the screen from the backing pixmap */
static gboolean
expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
{
  Drawing_t *Drawing = (Drawing_t*)user_data;
  g_critical("drawing expose event");

  gdk_draw_pixmap(widget->window,
		  widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
		  Drawing->Pixmap,
		  event->area.x, event->area.y,
		  event->area.x, event->area.y,
		  event->area.width, event->area.height);

  return FALSE;
}

Drawing_t *drawing_construct(ControlFlowData *Control_Flow_Data)
{
	Drawing_t *Drawing = g_new(Drawing_t, 1);
		
	Drawing->Drawing_Area_V = gtk_drawing_area_new ();
	Drawing->Control_Flow_Data = Control_Flow_Data;

	Drawing->pango_layout =
		gtk_widget_create_pango_layout(Drawing->Drawing_Area_V, NULL);
	
	//gtk_widget_set_size_request(Drawing->Drawing_Area_V->window, 50, 50);
	g_object_set_data_full(
			G_OBJECT(Drawing->Drawing_Area_V),
			"Link_Drawing_Data",
			Drawing,
			(GDestroyNotify)drawing_destroy);

	//gtk_widget_modify_bg(	Drawing->Drawing_Area_V,
	//			GTK_STATE_NORMAL,
	//			&CF_Colors[BLACK]);
	
	//gdk_window_get_geometry(Drawing->Drawing_Area_V->window,
	//		NULL, NULL,
	//		&(Drawing->width),
	//		&(Drawing->height),
	//		-1);
	
	//Drawing->Pixmap = gdk_pixmap_new(
	//		Drawing->Drawing_Area_V->window,
	//		Drawing->width,
	//		Drawing->height,
	//		Drawing->depth);
	
	Drawing->Pixmap = NULL;

// 	Drawing->Pixmap = gdk_pixmap_new(Drawing->Drawing_Area_V->window,
//			  Drawing->Drawing_Area_V->allocation.width,
//			  Drawing->Drawing_Area_V->allocation.height,
//			  -1);

	g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
				"configure_event",
				G_CALLBACK (configure_event),
				(gpointer)Drawing);
	
	g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
				"expose_event",
				G_CALLBACK (expose_event),
				(gpointer)Drawing);

	return Drawing;
}

void drawing_destroy(Drawing_t *Drawing)
{

	// Do not unref here, Drawing_t destroyed by it's widget.
	//g_object_unref( G_OBJECT(Drawing->Drawing_Area_V));
		
	g_free(Drawing->pango_layout);
	g_free(Drawing);
}

GtkWidget *drawing_get_widget(Drawing_t *Drawing)
{
	return Drawing->Drawing_Area_V;
}

/* convert_pixels_to_time
 *
 * Convert from window pixel and time interval to an absolute time.
 */
void convert_pixels_to_time(
		gint width,
		guint x,
		LttTime *window_time_begin,
		LttTime *window_time_end,
		LttTime *time)
{
	LttTime window_time_interval;
	
	window_time_interval = ltt_time_sub(*window_time_end, 
            *window_time_begin);
	*time = ltt_time_mul(window_time_interval, (x/(float)width));
	*time = ltt_time_add(*window_time_begin, *time);
}


void convert_time_to_pixels(
		LttTime window_time_begin,
		LttTime window_time_end,
		LttTime time,
		int width,
		guint *x)
{
	LttTime window_time_interval;
	float interval_float, time_float;
	
	window_time_interval = ltt_time_sub(window_time_end,window_time_begin);
	
	time = ltt_time_sub(time, window_time_begin);
	
	interval_float = ltt_time_to_double(window_time_interval);
	time_float = ltt_time_to_double(time);

	*x = (guint)(time_float/interval_float * width);
	
}

void drawing_refresh (	Drawing_t *Drawing,
			guint x, guint y,
			guint width, guint height)
{
	g_info("Drawing.c : drawing_refresh %u, %u, %u, %u", x, y, width, height);
	GdkRectangle update_rect;

	gdk_draw_drawable(
		Drawing->Drawing_Area_V->window,
		Drawing->Drawing_Area_V->
		 style->fg_gc[GTK_WIDGET_STATE (Drawing->Drawing_Area_V)],
		GDK_DRAWABLE(Drawing->Pixmap),
		x, y,
		x, y,
		width, height);

	update_rect.x = 0 ;
	update_rect.y = 0 ;
	update_rect.width = Drawing->width;
	update_rect.height = Drawing->height ;
	gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);

}


void drawing_draw_line(	Drawing_t *Drawing,
			GdkPixmap *Pixmap,
			guint x1, guint y1,
			guint x2, guint y2,
			GdkGC *GC)
{
	gdk_draw_line (Pixmap,
			GC,
			x1, y1, x2, y2);
}


void drawing_resize(Drawing_t *Drawing, guint h, guint w)
{
	Drawing->height = h ;
	Drawing->width = w ;

	gtk_widget_set_size_request (	Drawing->Drawing_Area_V,
					Drawing->width,
					Drawing->height);
	
	
}


/* Insert a square corresponding to a new process in the list */
/* Applies to whole Drawing->width */
void drawing_insert_square(Drawing_t *Drawing,
				guint y,
				guint height)
{
	//GdkRectangle update_rect;

	/* Allocate a new pixmap with new height */
	GdkPixmap *Pixmap = gdk_pixmap_new(Drawing->Drawing_Area_V->window,
			  Drawing->width + SAFETY,
			  Drawing->height + height + SAFETY,
			  -1);
	
	/* Copy the high region */
	gdk_draw_drawable (Pixmap,
		Drawing->Drawing_Area_V->style->black_gc,
		Drawing->Pixmap,
		0, 0,
		0, 0,
		Drawing->width + SAFETY, y);


	/* add an empty square */
	gdk_draw_rectangle (Pixmap,
		Drawing->Drawing_Area_V->style->black_gc,
		TRUE,
		0, y,
		Drawing->width + SAFETY,	// do not overlap
		height);


	/* copy the bottom of the region */
 	gdk_draw_drawable (Pixmap,
		Drawing->Drawing_Area_V->style->black_gc,
		Drawing->Pixmap,
		0, y,
		0, y + height,
		Drawing->width+SAFETY, Drawing->height - y + SAFETY);


	if (Drawing->Pixmap)
		gdk_pixmap_unref(Drawing->Pixmap);

	Drawing->Pixmap = Pixmap;
	
	Drawing->height+=height;

	/* Rectangle to update, from new Drawing dimensions */
	//update_rect.x = 0 ;
	//update_rect.y = y ;
	//update_rect.width = Drawing->width;
	//update_rect.height = Drawing->height - y ;
	//gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);
}


/* Remove a square corresponding to a removed process in the list */
void drawing_remove_square(Drawing_t *Drawing,
				guint y,
				guint height)
{
	//GdkRectangle update_rect;
	
	/* Allocate a new pixmap with new height */
	GdkPixmap *Pixmap = gdk_pixmap_new(
			Drawing->Drawing_Area_V->window,
			Drawing->width + SAFETY,
			Drawing->height - height + SAFETY,
			-1);
	
	/* Copy the high region */
	gdk_draw_drawable (Pixmap,
		Drawing->Drawing_Area_V->style->black_gc,
		Drawing->Pixmap,
		0, 0,
		0, 0,
		Drawing->width + SAFETY, y);


	/* Copy up the bottom of the region */
 	gdk_draw_drawable (Pixmap,
		Drawing->Drawing_Area_V->style->black_gc,
		Drawing->Pixmap,
		0, y + height,
		0, y,
		Drawing->width, Drawing->height - y - height + SAFETY);


	if (Drawing->Pixmap)
		gdk_pixmap_unref(Drawing->Pixmap);

	Drawing->Pixmap = Pixmap;
	
	Drawing->height-=height;
	
	/* Rectangle to update, from new Drawing dimensions */
	//update_rect.x = 0 ;
	//update_rect.y = y ;
	//update_rect.width = Drawing->width;
	//update_rect.height = Drawing->height - y ;
	//gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);
}
Commit	Line	Data
	1
	2	#include <gtk/gtk.h>
	3	#include <gdk/gdk.h>
	4
	5	#include <lttv/processTrace.h>
	6	#include <lttv/gtkTraceSet.h>
	7	#include <lttv/hook.h>
	8
	9	#include "Drawing.h"
	10	#include "CFV.h"
	11	#include "CFV-private.h"
	12	#include "Event_Hooks.h"
	13
	14	#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
	15	#define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
	16
	17	/*****************************************************************************
	18	* Drawing functions *
	19	*****************************************************************************/
	20
	21	//FIXME Colors will need to be dynamic. Graphic context part not done so far.
	22	typedef enum
	23	{
	24	RED,
	25	GREEN,
	26	BLUE,
	27	WHITE,
	28	BLACK
	29
	30	} ControlFlowColors;
	31
	32	/* Vector of unallocated colors */
	33	static GdkColor CF_Colors [] =
	34	{
	35	{ 0, 0xffff, 0x0000, 0x0000 }, // RED
	36	{ 0, 0x0000, 0xffff, 0x0000 }, // GREEN
	37	{ 0, 0x0000, 0x0000, 0xffff }, // BLUE
	38	{ 0, 0xffff, 0xffff, 0xffff }, // WHITE
	39	{ 0, 0x0000, 0x0000, 0x0000 } // BLACK
	40	};
	41
	42
	43	/* Function responsible for updating the exposed area.
	44	* It must call processTrace() to ask for this update.
	45	* Note : this function cannot clear the background, because it may
	46	* erase drawing already present (SAFETY).
	47	*/
	48	void drawing_data_request(Drawing_t *Drawing,
	49	GdkPixmap **Pixmap,
	50	gint x, gint y,
	51	gint width,
	52	gint height)
	53	{
	54	if(width < 0) return ;
	55	if(height < 0) return ;
	56	ControlFlowData *control_flow_data =
	57	(ControlFlowData*)g_object_get_data(
	58	G_OBJECT(
	59	Drawing->Drawing_Area_V),
	60	"Control_Flow_Data");
	61
	62	LttTime start, end;
	63	LttTime window_end = ltt_time_add(control_flow_data->Time_Window.time_width,
	64	control_flow_data->Time_Window.start_time);
	65
	66	g_critical("req : window_end : %u, %u", window_end.tv_sec,
	67	window_end.tv_nsec);
	68
	69	g_critical("req : time width : %u, %u", control_flow_data->Time_Window.time_width.tv_sec,
	70	control_flow_data->Time_Window.time_width.tv_nsec);
	71
	72	g_critical("x is : %i, x+width is : %i", x, x+width);
	73
	74	convert_pixels_to_time(Drawing->Drawing_Area_V->allocation.width, x,
	75	&control_flow_data->Time_Window.start_time,
	76	&window_end,
	77	&start);
	78
	79	convert_pixels_to_time(Drawing->Drawing_Area_V->allocation.width, x + width,
	80	&control_flow_data->Time_Window.start_time,
	81	&window_end,
	82	&end);
	83
	84	LttvTracesetContext * tsc =
	85	get_traceset_context(control_flow_data->Parent_Window);
	86
	87	//send_test_process(
	88	//guicontrolflow_get_process_list(Drawing->Control_Flow_Data),
	89	//Drawing);
	90	//send_test_drawing(
	91	//guicontrolflow_get_process_list(Drawing->Control_Flow_Data),
	92	//Drawing, *Pixmap, x, y, width, height);
	93
	94	// Let's call processTrace() !!
	95	EventRequest event_request; // Variable freed at the end of the function.
	96	event_request.Control_Flow_Data = control_flow_data;
	97	event_request.time_begin = start;
	98	event_request.time_end = end;
	99
	100	g_critical("req : start : %u, %u", event_request.time_begin.tv_sec,
	101	event_request.time_begin.tv_nsec);
	102
	103	g_critical("req : end : %u, %u", event_request.time_end.tv_sec,
	104	event_request.time_end.tv_nsec);
	105
	106	LttvHooks *event = lttv_hooks_new();
	107	state_add_event_hooks_api(control_flow_data->Parent_Window);
	108	lttv_hooks_add(event, draw_event_hook, &event_request);
	109
	110	lttv_process_traceset_seek_time(tsc, start);
	111	lttv_traceset_context_add_hooks(tsc,
	112	NULL, NULL, NULL, NULL, NULL, NULL,
	113	NULL, NULL, NULL, event, NULL);
	114	lttv_process_traceset(tsc, end, G_MAXULONG);
	115	lttv_traceset_context_remove_hooks(tsc, NULL, NULL, NULL, NULL, NULL, NULL,
	116	NULL, NULL, NULL, event, NULL);
	117
	118	state_remove_event_hooks_api(control_flow_data->Parent_Window);
	119	lttv_hooks_destroy(event);
	120	}
	121
	122	/* Callbacks */
	123
	124
	125	/* Create a new backing pixmap of the appropriate size */
	126	/* As the scaling will always change, it's of no use to copy old
	127	* pixmap.
	128	*/
	129	static gboolean
	130	configure_event( GtkWidget widget, GdkEventConfigure event,
	131	gpointer user_data)
	132	{
	133	Drawing_t Drawing = (Drawing_t)user_data;
	134
	135
	136	/* First, get the new time interval of the main window */
	137	/* we assume (see documentation) that the main window
	138	* has updated the time interval before this configure gets
	139	* executed.
	140	*/
	141	get_time_window(Drawing->Control_Flow_Data->Parent_Window,
	142	&Drawing->Control_Flow_Data->Time_Window);
	143
	144	/* New Pixmap, size of the configure event */
	145	//GdkPixmap *Pixmap = gdk_pixmap_new(widget->window,
	146	// widget->allocation.width + SAFETY,
	147	// widget->allocation.height + SAFETY,
	148	// -1);
	149
	150	g_critical("drawing configure event");
	151	g_critical("New draw size : %i by %i",widget->allocation.width, widget->allocation.height);
	152
	153
	154	if (Drawing->Pixmap)
	155	gdk_pixmap_unref(Drawing->Pixmap);
	156
	157	/* If no old Pixmap present */
	158	//if(Drawing->Pixmap == NULL)
	159	{
	160	Drawing->Pixmap = gdk_pixmap_new(
	161	widget->window,
	162	widget->allocation.width + SAFETY,
	163	widget->allocation.height + SAFETY,
	164	//ProcessList_get_height
	165	// (GuiControlFlow_get_Process_List(Drawing->Control_Flow_Data)),
	166	-1);
	167	Drawing->width = widget->allocation.width;
	168	Drawing->height = widget->allocation.height;
	169
	170
	171	// Clear the image
	172	gdk_draw_rectangle (Drawing->Pixmap,
	173	widget->style->white_gc,
	174	TRUE,
	175	0, 0,
	176	widget->allocation.width+SAFETY,
	177	widget->allocation.height+SAFETY);
	178
	179	//g_info("init data request");
	180
	181
	182	/* Initial data request */
	183	// Do not need to ask for data of 1 pixel : not synchronized with
	184	// main window time at this moment.
	185	drawing_data_request(Drawing, &Drawing->Pixmap, 0, 0,
	186	widget->allocation.width,
	187	widget->allocation.height);
	188
	189	Drawing->width = widget->allocation.width;
	190	Drawing->height = widget->allocation.height;
	191
	192	return TRUE;
	193
	194
	195
	196	}
	197	#ifdef NOTUSE
	198	// /* Draw empty background */
	199	// gdk_draw_rectangle (Pixmap,
	200	// widget->style->black_gc,
	201	// TRUE,
	202	// 0, 0,
	203	// widget->allocation.width,
	204	// widget->allocation.height);
	205
	206	/* Copy old data to new pixmap */
	207	gdk_draw_drawable (Pixmap,
	208	widget->style->white_gc,
	209	Drawing->Pixmap,
	210	0, 0,
	211	0, 0,
	212	-1, -1);
	213
	214	if (Drawing->Pixmap)
	215	gdk_pixmap_unref(Drawing->Pixmap);
	216
	217	Drawing->Pixmap = Pixmap;
	218
	219	// Clear the bottom part of the image (SAFETY)
	220	gdk_draw_rectangle (Pixmap,
	221	widget->style->white_gc,
	222	TRUE,
	223	0, Drawing->height+SAFETY,
	224	Drawing->width+SAFETY, // do not overlap
	225	(widget->allocation.height) - Drawing->height);
	226
	227	// Clear the right part of the image (SAFETY)
	228	gdk_draw_rectangle (Pixmap,
	229	widget->style->white_gc,
	230	TRUE,
	231	Drawing->width+SAFETY, 0,
	232	(widget->allocation.width) - Drawing->width, // do not overlap
	233	Drawing->height+SAFETY);
	234
	235	/* Clear the backgound for data request, but not SAFETY */
	236	gdk_draw_rectangle (Pixmap,
	237	Drawing->Drawing_Area_V->style->white_gc,
	238	TRUE,
	239	Drawing->width + SAFETY, 0,
	240	widget->allocation.width - Drawing->width, // do not overlap
	241	widget->allocation.height+SAFETY);
	242
	243	/* Request data for missing space */
	244	g_info("missing data request");
	245	drawing_data_request(Drawing, &Pixmap, Drawing->width, 0,
	246	widget->allocation.width - Drawing->width,
	247	widget->allocation.height);
	248
	249	Drawing->width = widget->allocation.width;
	250	Drawing->height = widget->allocation.height;
	251
	252	return TRUE;
	253	#endif //NOTUSE
	254	}
	255
	256
	257	/* Redraw the screen from the backing pixmap */
	258	static gboolean
	259	expose_event( GtkWidget widget, GdkEventExpose event, gpointer user_data )
	260	{
	261	Drawing_t Drawing = (Drawing_t)user_data;
	262	g_critical("drawing expose event");
	263
	264	gdk_draw_pixmap(widget->window,
	265	widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
	266	Drawing->Pixmap,
	267	event->area.x, event->area.y,
	268	event->area.x, event->area.y,
	269	event->area.width, event->area.height);
	270
	271	return FALSE;
	272	}
	273
	274	Drawing_t drawing_construct(ControlFlowData Control_Flow_Data)
	275	{
	276	Drawing_t *Drawing = g_new(Drawing_t, 1);
	277
	278	Drawing->Drawing_Area_V = gtk_drawing_area_new ();
	279	Drawing->Control_Flow_Data = Control_Flow_Data;
	280
	281	Drawing->pango_layout =
	282	gtk_widget_create_pango_layout(Drawing->Drawing_Area_V, NULL);
	283
	284	//gtk_widget_set_size_request(Drawing->Drawing_Area_V->window, 50, 50);
	285	g_object_set_data_full(
	286	G_OBJECT(Drawing->Drawing_Area_V),
	287	"Link_Drawing_Data",
	288	Drawing,
	289	(GDestroyNotify)drawing_destroy);
	290
	291	//gtk_widget_modify_bg( Drawing->Drawing_Area_V,
	292	// GTK_STATE_NORMAL,
	293	// &CF_Colors[BLACK]);
	294
	295	//gdk_window_get_geometry(Drawing->Drawing_Area_V->window,
	296	// NULL, NULL,
	297	// &(Drawing->width),
	298	// &(Drawing->height),
	299	// -1);
	300
	301	//Drawing->Pixmap = gdk_pixmap_new(
	302	// Drawing->Drawing_Area_V->window,
	303	// Drawing->width,
	304	// Drawing->height,
	305	// Drawing->depth);
	306
	307	Drawing->Pixmap = NULL;
	308
	309	// Drawing->Pixmap = gdk_pixmap_new(Drawing->Drawing_Area_V->window,
	310	// Drawing->Drawing_Area_V->allocation.width,
	311	// Drawing->Drawing_Area_V->allocation.height,
	312	// -1);
	313
	314	g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
	315	"configure_event",
	316	G_CALLBACK (configure_event),
	317	(gpointer)Drawing);
	318
	319	g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
	320	"expose_event",
	321	G_CALLBACK (expose_event),
	322	(gpointer)Drawing);
	323
	324	return Drawing;
	325	}
	326
	327	void drawing_destroy(Drawing_t *Drawing)
	328	{
	329
	330	// Do not unref here, Drawing_t destroyed by it's widget.
	331	//g_object_unref( G_OBJECT(Drawing->Drawing_Area_V));
	332
	333	g_free(Drawing->pango_layout);
	334	g_free(Drawing);
	335	}
	336
	337	GtkWidget drawing_get_widget(Drawing_t Drawing)
	338	{
	339	return Drawing->Drawing_Area_V;
	340	}
	341
	342	/* convert_pixels_to_time
	343	*
	344	* Convert from window pixel and time interval to an absolute time.
	345	*/
	346	void convert_pixels_to_time(
	347	gint width,
	348	guint x,
	349	LttTime *window_time_begin,
	350	LttTime *window_time_end,
	351	LttTime *time)
	352	{
	353	LttTime window_time_interval;
	354
	355	window_time_interval = ltt_time_sub(*window_time_end,
	356	*window_time_begin);
	357	*time = ltt_time_mul(window_time_interval, (x/(float)width));
	358	time = ltt_time_add(window_time_begin, *time);
	359	}
	360
	361
	362
	363	void convert_time_to_pixels(
	364	LttTime window_time_begin,
	365	LttTime window_time_end,
	366	LttTime time,
	367	int width,
	368	guint *x)
	369	{
	370	LttTime window_time_interval;
	371	float interval_float, time_float;
	372
	373	window_time_interval = ltt_time_sub(window_time_end,window_time_begin);
	374
	375	time = ltt_time_sub(time, window_time_begin);
	376
	377	interval_float = ltt_time_to_double(window_time_interval);
	378	time_float = ltt_time_to_double(time);
	379
	380	x = (guint)(time_float/interval_float width);
	381
	382	}
	383
	384	void drawing_refresh ( Drawing_t *Drawing,
	385	guint x, guint y,
	386	guint width, guint height)
	387	{
	388	g_info("Drawing.c : drawing_refresh %u, %u, %u, %u", x, y, width, height);
	389	GdkRectangle update_rect;
	390
	391	gdk_draw_drawable(
	392	Drawing->Drawing_Area_V->window,
	393	Drawing->Drawing_Area_V->
	394	style->fg_gc[GTK_WIDGET_STATE (Drawing->Drawing_Area_V)],
	395	GDK_DRAWABLE(Drawing->Pixmap),
	396	x, y,
	397	x, y,
	398	width, height);
	399
	400	update_rect.x = 0 ;
	401	update_rect.y = 0 ;
	402	update_rect.width = Drawing->width;
	403	update_rect.height = Drawing->height ;
	404	gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);
	405
	406	}
	407
	408
	409	void drawing_draw_line( Drawing_t *Drawing,
	410	GdkPixmap *Pixmap,
	411	guint x1, guint y1,
	412	guint x2, guint y2,
	413	GdkGC *GC)
	414	{
	415	gdk_draw_line (Pixmap,
	416	GC,
	417	x1, y1, x2, y2);
	418	}
	419
	420
	421
	422
	423	void drawing_resize(Drawing_t *Drawing, guint h, guint w)
	424	{
	425	Drawing->height = h ;
	426	Drawing->width = w ;
	427
	428	gtk_widget_set_size_request ( Drawing->Drawing_Area_V,
	429	Drawing->width,
	430	Drawing->height);
	431
	432
	433	}
	434
	435
	436	/* Insert a square corresponding to a new process in the list */
	437	/* Applies to whole Drawing->width */
	438	void drawing_insert_square(Drawing_t *Drawing,
	439	guint y,
	440	guint height)
	441	{
	442	//GdkRectangle update_rect;
	443
	444	/* Allocate a new pixmap with new height */
	445	GdkPixmap *Pixmap = gdk_pixmap_new(Drawing->Drawing_Area_V->window,
	446	Drawing->width + SAFETY,
	447	Drawing->height + height + SAFETY,
	448	-1);
	449
	450	/* Copy the high region */
	451	gdk_draw_drawable (Pixmap,
	452	Drawing->Drawing_Area_V->style->black_gc,
	453	Drawing->Pixmap,
	454	0, 0,
	455	0, 0,
	456	Drawing->width + SAFETY, y);
	457
	458
	459
	460
	461	/* add an empty square */
	462	gdk_draw_rectangle (Pixmap,
	463	Drawing->Drawing_Area_V->style->black_gc,
	464	TRUE,
	465	0, y,
	466	Drawing->width + SAFETY, // do not overlap
	467	height);
	468
	469
	470
	471	/* copy the bottom of the region */
	472	gdk_draw_drawable (Pixmap,
	473	Drawing->Drawing_Area_V->style->black_gc,
	474	Drawing->Pixmap,
	475	0, y,
	476	0, y + height,
	477	Drawing->width+SAFETY, Drawing->height - y + SAFETY);
	478
	479
	480
	481
	482	if (Drawing->Pixmap)
	483	gdk_pixmap_unref(Drawing->Pixmap);
	484
	485	Drawing->Pixmap = Pixmap;
	486
	487	Drawing->height+=height;
	488
	489	/* Rectangle to update, from new Drawing dimensions */
	490	//update_rect.x = 0 ;
	491	//update_rect.y = y ;
	492	//update_rect.width = Drawing->width;
	493	//update_rect.height = Drawing->height - y ;
	494	//gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);
	495	}
	496
	497
	498	/* Remove a square corresponding to a removed process in the list */
	499	void drawing_remove_square(Drawing_t *Drawing,
	500	guint y,
	501	guint height)
	502	{
	503	//GdkRectangle update_rect;
	504
	505	/* Allocate a new pixmap with new height */
	506	GdkPixmap *Pixmap = gdk_pixmap_new(
	507	Drawing->Drawing_Area_V->window,
	508	Drawing->width + SAFETY,
	509	Drawing->height - height + SAFETY,
	510	-1);
	511
	512	/* Copy the high region */
	513	gdk_draw_drawable (Pixmap,
	514	Drawing->Drawing_Area_V->style->black_gc,
	515	Drawing->Pixmap,
	516	0, 0,
	517	0, 0,
	518	Drawing->width + SAFETY, y);
	519
	520
	521
	522	/* Copy up the bottom of the region */
	523	gdk_draw_drawable (Pixmap,
	524	Drawing->Drawing_Area_V->style->black_gc,
	525	Drawing->Pixmap,
	526	0, y + height,
	527	0, y,
	528	Drawing->width, Drawing->height - y - height + SAFETY);
	529
	530
	531	if (Drawing->Pixmap)
	532	gdk_pixmap_unref(Drawing->Pixmap);
	533
	534	Drawing->Pixmap = Pixmap;
	535
	536	Drawing->height-=height;
	537
	538	/* Rectangle to update, from new Drawing dimensions */
	539	//update_rect.x = 0 ;
	540	//update_rect.y = y ;
	541	//update_rect.width = Drawing->width;
	542	//update_rect.height = Drawing->height - y ;
	543	//gtk_widget_draw( Drawing->Drawing_Area_V, &update_rect);
	544	}
	545
	546