guiControlFlow Process List completed

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

#include "Drawing.h"

/*****************************************************************************
 *                              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
};


typedef struct _Drawing_t {
	GtkWidget *Drawing_Area_V

	guint height, width;

} Drawing_t;


Drawing_t *Drawing(void)
{

	Drawing_t Drawing = g_new(Drawing_t, 1);
		
	Drawing->Drawing_Area_V = gtk_drawing_area_new ();

	g_object_set_data_full(
			G_OBJECT(Drawing->Drawing_Area_V),
			"Drawing_Data",
			Drawing,
			(GDestroyNotify)Drawing_destroy);

	gtk_widget_modify_bg(	Control_Flow_Data->Drawing_Area_V,
				GTK_STATE_NORMAL,
				&CF_Colors[BLACK]);
	

	return Drawing;
}

void Drawing_destroy(Drawing_t *Drawing)
{

	g_object_unref( G_OBJECT(Drawing->Drawing_Area_V));
		
	g_free(Drawing);
}

/* 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 convert_pixels_to_time(
		Drawing_t *Drawing,
		guint x,
		LttTime *window_time_begin,
		LttTime *window_time_end,
		LttTime *time,
		);
{
	LttTime window_time_interval;
	
	TimeSub(window_time_interval, *window_time_end, window_time_begin);

	
	TimeMul(*time, window_time_interval,
			(x/(float)Drawing->width));
	TimeAdd(*time, window_time_begin, *time);
	
}



void convert_time_to_pixels(
		LttTime window_time_begin,
		LttTime window_time_end,
		LttTime time,
		Drawing_t *Drawing,
		guint *x,
		)
{
	LttTime window_time_interval;
	
	TimeSub(window_time_interval, window_time_end, window_time_begin);
	
	TimeSub(time, time, wimdow_time_begin);
	
	*x = (guint)((time/(float)window_time_interval) * Drawing->width);
	
}



void Drawing_Resize(Drawing_t *Drawing, guint h, guint, w)
{
	guint w;

	Drawing->height = h ;
	Drawing->weight = w ;

	gtk_widget_set_size_request (	Control_Flow_Data->Drawing_Area_V,
					Drawing->weight,
					Drawing->height);
	
	
}