Commit: 9792bfe783355418e55f9b520f5239394fd7bc72
Parent: c36035ca080200e6e8e2a1bd0b03160b05390d44
Author: Randy Palamar
Date: Tue, 14 Jan 2025 20:23:44 -0700
ui: overlay mouse coordinates when hovering
closes: #12
Diffstat:
| M | ui.c | | | 23 | +++++++++++++++++++---- |
| M | util.c | | | 10 | ++++++++++ |
2 files changed, 29 insertions(+), 4 deletions(-)
diff --git a/ui.c b/ui.c
@@ -272,6 +272,10 @@ draw_display_overlay(BeamformerCtx *ctx, Arena a, v2 mouse, Rect display_rect)
do_scale_bar(ui, &buf, var, mouse, SB_AXIAL, (Rect){.pos = start_pos, .size = vr.size},
bp->output_max_coordinate.z * 1e3, bp->output_min_coordinate.z * 1e3, s8(" mm"));
+ v2 pixels_to_mm = output_dim;
+ pixels_to_mm.x /= vr.size.x * 1e-3;
+ pixels_to_mm.y /= vr.size.y * 1e-3;
+
if (CheckCollisionPointRec(mouse.rl, vr.rl)) {
is->hot_state = IS_DISPLAY;
is->hot.store = &ctx->fsctx.threshold;
@@ -280,6 +284,21 @@ draw_display_overlay(BeamformerCtx *ctx, Arena a, v2 mouse, Rect display_rect)
is->hot.flags = V_GEN_MIPMAPS;
is->hot.display_scale = 1;
is->hot.scroll_scale = 1;
+
+ v2 relative_mouse = sub_v2(mouse, vr.pos);
+ v2 mm = mul_v2(relative_mouse, pixels_to_mm);
+ mm.x += 1e3 * bp->output_min_coordinate.x;
+ mm.y += 1e3 * bp->output_min_coordinate.z;
+
+ buf.widx = 0;
+ stream_append_v2(&buf, mm);
+ v2 txt_s = measure_text(ui->small_font, stream_to_s8(&buf));
+ v2 txt_p = {
+ .x = vr.pos.x + vr.size.w - txt_s.w - 4,
+ .y = vr.pos.y + vr.size.h - txt_s.h - 4,
+ };
+ draw_text(ui->small_font, stream_to_s8(&buf), txt_p, 0,
+ colour_from_normalized(RULER_COLOUR));
}
/* TODO(rnp): store converted ruler points instead of screen points */
@@ -290,10 +309,6 @@ draw_display_overlay(BeamformerCtx *ctx, Arena a, v2 mouse, Rect display_rect)
Color colour = colour_from_normalized(RULER_COLOUR);
- v2 pixels_to_mm = output_dim;
- pixels_to_mm.x /= vr.size.x * 1e-3;
- pixels_to_mm.y /= vr.size.y * 1e-3;
-
end_p = clamp_v2_rect(end_p, vr);
v2 pixel_delta = sub_v2(ui->ruler_start_p, end_p);
v2 mm_delta = mul_v2(pixels_to_mm, pixel_delta);
diff --git a/util.c b/util.c
@@ -221,6 +221,16 @@ stream_append_f64_e(Stream *s, f64 f)
}
static void
+stream_append_v2(Stream *s, v2 v)
+{
+ stream_append_byte(s, '{');
+ stream_append_f64(s, v.x, 100);
+ stream_append_s8(s, s8(", "));
+ stream_append_f64(s, v.y, 100);
+ stream_append_byte(s, '}');
+}
+
+static void
stream_append_variable(Stream *s, Variable *var)
{
switch (var->type) {