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#include "common.h"
#include "customcellrendererrate.h"
/* Private class member */
#define PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE((obj), \
CUSTOM_TYPE_CELL_RENDERER_RATE, \
CustomCellRendererRatePrivate))
typedef struct _CustomCellRendererRatePrivate CustomCellRendererRatePrivate;
struct _CustomCellRendererRatePrivate
{
gfloat rate;
gchar buffer[10];
};
static void custom_cell_renderer_rate_get_property(GObject* object,
guint param_id,
GValue* value,
GParamSpec* pspec);
static void custom_cell_renderer_rate_set_property(GObject* object,
guint param_id,
const GValue* value,
GParamSpec* pspec);
static void convert_rate_to_string(gchar* str, guint size, gfloat rate);
enum {
PROP_0,
PROP_RATE,
};
G_DEFINE_TYPE(CustomCellRendererRate, custom_cell_renderer_rate, GTK_TYPE_CELL_RENDERER_TEXT)
static void custom_cell_renderer_rate_init(CustomCellRendererRate* cell_rate)
{
g_object_set(cell_rate, "xalign", 1.0f, NULL);
convert_rate_to_string(PRIVATE(cell_rate)->buffer,
sizeof(PRIVATE(cell_rate)->buffer),
PRIVATE(cell_rate)->rate);
g_object_set(cell_rate, "text", PRIVATE(cell_rate)->buffer, NULL);
}
static void custom_cell_renderer_rate_class_init(CustomCellRendererRateClass *cell_rate_class)
{
GObjectClass *object_class;
/* GtkCellRendererClass *cell_renderer_class; */
object_class = G_OBJECT_CLASS(cell_rate_class);
/* cell_renderer_class = GTK_CELL_RENDERER_CLASS(cell_rate_class); */
g_type_class_add_private(object_class,
sizeof(CustomCellRendererRatePrivate));
object_class->set_property = custom_cell_renderer_rate_set_property;
object_class->get_property = custom_cell_renderer_rate_get_property;
g_object_class_install_property(object_class,
PROP_RATE,
g_param_spec_float("rate",
"Rate",
"The transfer rate in kilo (1000) byte per second",
0.0,
G_MAXFLOAT,
0,
G_PARAM_READABLE | G_PARAM_WRITABLE));
}
GtkCellRenderer* custom_cell_renderer_rate_new(void)
{
return g_object_new(CUSTOM_TYPE_CELL_RENDERER_RATE, NULL);
}
void custom_cell_renderer_rate_get_property(GObject* object,
guint param_id,
GValue* value,
GParamSpec* pspec)
{
CustomCellRendererRate* rate = CUSTOM_CELL_RENDERER_RATE(object);
switch (param_id)
{
case PROP_RATE:
g_value_set_float(value, PRIVATE(rate)->rate);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
}
}
void custom_cell_renderer_rate_set_property(GObject* object,
guint param_id,
const GValue* value,
GParamSpec* pspec)
{
CustomCellRendererRate* rate = CUSTOM_CELL_RENDERER_RATE(object);
gboolean changed = FALSE;
switch (param_id)
{
case PROP_RATE:
{
gfloat rate_value = g_value_get_float(value);
if (PRIVATE(rate)->rate != rate_value)
{
PRIVATE(rate)->rate = rate_value;
changed = TRUE;
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
}
if (changed)
{
convert_rate_to_string(PRIVATE(rate)->buffer,
sizeof(PRIVATE(rate)->buffer),
PRIVATE(rate)->rate);
g_object_set(rate, "text", PRIVATE(rate)->buffer, NULL);
}
}
void convert_rate_to_string(gchar* str, guint size, gfloat rate)
{
if (rate <= 0.0f)
{
g_assert(size >= 1);
*str = '\0';
}
else if (rate < 0.9f)
{
g_snprintf(str, size, "%3.0fB", rate * 1000.0f);
}
else if (rate <= 900.0f)
{
g_snprintf(str, size, "%3.2fkB", rate);
}
else if (rate <= 900000.0f)
{
g_snprintf(str, size, "%3.2fMB", rate / 1000.0f);
}
else
{
g_snprintf(str, size, "%3.2fGB", rate / 1000000.0f);
}
}
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