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ubb-la/gui.c: display time of center (from start of buffer)

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This commit is contained in:
Werner Almesberger 2013-01-31 03:52:24 -03:00
parent b0a576dd64
commit db133f2cb6
1 changed files with 22 additions and 9 deletions
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31
ubb-la/gui.c
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@ -74,10 +74,15 @@
#define UNIT_GAP 2 /* space between number and unit */ #define UNIT_GAP 2 /* space between number and unit */
#define POS_X 168
#define POS_Y (MEAS_DIV_Y-8-3)
#define MEAS_DIV_Y (FREQ_Y-3-1)
#define FREQ_X 0 #define FREQ_X 0
#define FREQ_Y 220 #define FREQ_Y 222
#define INTERVAL_X 0 #define INTERVAL_X 0
#define INTERVAL_Y 230 #define INTERVAL_Y (FREQ_Y+8+2)
#define DIV_SAMP_X (DIV_INT_X-8) #define DIV_SAMP_X (DIV_INT_X-8)
#define DIV_SAMP_Y FREQ_Y #define DIV_SAMP_Y FREQ_Y
#define DIV_INT_X 80 #define DIV_INT_X 80
@ -333,7 +338,7 @@ static void show_buffer(const uint8_t *buf, int skip, int nibbles,
/* ----- Display the sample frequency -------------------------------------- */ /* ----- Display the sample frequency -------------------------------------- */
static void si_text(int x, int y, double v, const char *unit) static void si_text(int x, int y, double v, const char *unit, int digits)
{ {
const char *pfx; const char *pfx;
@ -355,11 +360,17 @@ static void si_text(int x, int y, double v, const char *unit)
v *= 1e9; v *= 1e9;
pfx = "n"; pfx = "n";
} }
if (v >= 10) if (v >= 10 && digits == 3)
textf(x, y, TEXT_RGBA, "%3d", (int) (v+0.5)); textf(x, y, TEXT_RGBA, "%3d", (int) (v+0.5));
else if (v >= 100 && digits == 4)
textf(x, y, TEXT_RGBA, "%4d", (int) (v+0.5));
else if (v >= 100)
textf(x, y, TEXT_RGBA, "%*.*f", digits, digits-4, v);
else if (v >= 10)
textf(x, y, TEXT_RGBA, "%*.*f", digits, digits-3, v);
else else
textf(x, y, TEXT_RGBA, "%3.1f", v); textf(x, y, TEXT_RGBA, "%*.*f", digits, digits-2, v);
textf(x+3*8+UNIT_GAP, y, UNIT_RGBA, "%s%s", pfx, unit); textf(x+digits*8+UNIT_GAP, y, UNIT_RGBA, "%s%s", pfx, unit);
} }
@ -367,12 +378,12 @@ static void show_freq(double freq, int zoom)
{ {
int div; int div;
si_text(FREQ_X, FREQ_Y, freq, "Sa/s"); si_text(FREQ_X, FREQ_Y, freq, "Sa/s", 3);
si_text(INTERVAL_X, INTERVAL_Y, 1/freq, "s/Sa"); si_text(INTERVAL_X, INTERVAL_Y, 1/freq, "s/Sa", 3);
div = (DIV_X >> MAX_ZOOM) << (MAX_ZOOM-zoom); div = (DIV_X >> MAX_ZOOM) << (MAX_ZOOM-zoom);
textf(DIV_SAMP_X, DIV_SAMP_Y, TEXT_RGBA, "%4d", div); textf(DIV_SAMP_X, DIV_SAMP_Y, TEXT_RGBA, "%4d", div);
textf(DIV_SAMP_X+4*8+UNIT_GAP, DIV_SAMP_Y, UNIT_RGBA, "Sa/div", div); textf(DIV_SAMP_X+4*8+UNIT_GAP, DIV_SAMP_Y, UNIT_RGBA, "Sa/div", div);
si_text(DIV_INT_X, DIV_INT_Y, div/freq, "s/div"); si_text(DIV_INT_X, DIV_INT_Y, div/freq, "s/div", 3);
} }
@ -421,6 +432,8 @@ void gui(const uint8_t *buf, int skip, int nibbles, double freq)
XCENTER+CENTER_W/2, CENTER_Y0, CENTER_RGBA); XCENTER+CENTER_W/2, CENTER_Y0, CENTER_RGBA);
show_buffer(buf, skip, nibbles, CH_XOFF, XRES, zoom, pos); show_buffer(buf, skip, nibbles, CH_XOFF, XRES, zoom, pos);
show_freq(freq, zoom); show_freq(freq, zoom);
si_text(POS_X, POS_Y, pos/freq, "s", 7);
hlineColor(surf, 0, XRES-1, MEAS_DIV_Y, DIV_RGBA);
update(); update();
while (1) { while (1) {