}
typedef struct {
+ int size;
double r,g,b;
enum {CENTER,LEFT} halign;
enum {MIDDLE,TOP,BOTTOM} valign;
} text_render_options_t;
-static void plot_text(struct graphics_context *gc, text_render_options_t *tro,
+static void plot_text(struct graphics_context *gc, const text_render_options_t *tro,
double x, double y, const char *fmt, ...)
{
cairo_t *cr = gc->cr;
vsnprintf(buffer, sizeof(buffer), fmt, args);
va_end(args);
+ cairo_set_font_size(cr, tro->size);
cairo_text_extents(cr, buffer, &extents);
dx = 0;
switch (tro->halign) {
cairo_show_text(cr, buffer);
}
+static void render_depth_sample(struct graphics_context *gc, struct sample *sample, const text_render_options_t *tro)
+{
+ int sec = sample->time.seconds;
+ depth_t depth = sample->depth;
+ const char *fmt;
+ double d;
+
+ switch (output_units.length) {
+ case METERS:
+ d = depth.mm / 1000.0;
+ fmt = "%.1f";
+ break;
+ case FEET:
+ d = to_feet(depth);
+ fmt = "%.0f";
+ break;
+ }
+ plot_text(gc, tro, sec, depth.mm, fmt, d);
+}
+
/*
* Find the next minimum/maximum point.
*
result = NULL;
for (;;) {
- int time, depth;
+ int depth;
sample++;
if (sample >= end)
return NULL;
- time = sample->time.seconds;
depth = sample->depth.mm;
if (minmax) {
return result;
}
-static void render_depth_sample(struct graphics_context *gc, struct sample *sample)
-{
- text_render_options_t tro = {1.0, 0.2, 0.2, CENTER, TOP};
- int sec = sample->time.seconds;
- depth_t depth = sample->depth;
- const char *fmt;
- double d;
-
- switch (output_units.length) {
- case METERS:
- d = depth.mm / 1000.0;
- fmt = "%.1f";
- break;
- case FEET:
- d = to_feet(depth);
- fmt = "%.0f";
- break;
- }
- plot_text(gc, &tro, sec, depth.mm, fmt, d);
-}
-
static void plot_text_samples(struct graphics_context *gc, struct sample *a, struct sample *b)
{
+ static const text_render_options_t deep = {14, 1.0, 0.2, 0.2, CENTER, TOP};
+ static const text_render_options_t shallow = {14, 1.0, 0.2, 0.2, CENTER, BOTTOM};
+
for (;;) {
if (b <= a)
break;
a = next_minmax(a, b, 1);
if (!a)
- return;
- render_depth_sample(gc, a);
+ break;
+ render_depth_sample(gc, a, &deep);
a = next_minmax(a, b, 0);
if (!a)
break;
+ if (a->depth.mm < 2500)
+ continue;
+ render_depth_sample(gc, a, &shallow);
}
}
gc->scalex = maxtime;
gc->scaley = maxdepth;
- cairo_set_font_size(gc->cr, 14);
-
sample = dive->sample;
end = dive->sample + dive->samples;
static void plot_info(struct dive *dive, struct graphics_context *gc)
{
- text_render_options_t tro = {0.2, 1.0, 0.2, LEFT, TOP};
+ text_render_options_t tro = {10, 0.2, 1.0, 0.2, LEFT, TOP};
const double liters_per_cuft = 28.317;
const char *unit;
double airuse;
{
pressure_t startp, endp;
- cairo_set_font_size(gc->cr, 10);
-
if (get_cylinder_pressure_range(dive, gc, &startp, &endp)) {
int start, end;
const char *unit = "bar";
break;
}
- text_render_options_t tro = {0.2, 1.0, 0.2, LEFT, TOP};
+ text_render_options_t tro = {10, 0.2, 1.0, 0.2, LEFT, TOP};
plot_text(gc, &tro, 0, startp.mbar, "%d %s", start, unit);
plot_text(gc, &tro, dive->duration.seconds, endp.mbar,
"%d %s", end, unit);