From 2a8925a8612b5e632b0dbaa762ce834ad61704a8 Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Fri, 1 Apr 2016 19:28:22 +0200
Subject: Yee grid.

---
 src/ui.c | 109 +++++++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 72 insertions(+), 37 deletions(-)

(limited to 'src/ui.c')

diff --git a/src/ui.c b/src/ui.c
index 4e2f791..72a7c7b 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -24,7 +24,7 @@ struct {
 typedef struct {
 	phy_sim *sim;
 
-	bool dragging;
+	bool dragging, selecting;
 	r_xsection_type xsection_type;
 	float xsection_frac;
 	bool select_valid;
@@ -143,27 +143,7 @@ void ui_infof(ui_window *uiw, const char *fmt, ...)
 
 static void ui_simview_set_select(ui_simview *sv, vec2_t sel_2d)
 {
-	if (sel_2d[0] < 0.0f || sel_2d[0] > 1.0f ||
-	    sel_2d[1] < 0.0f || sel_2d[1] > 1.0f) {
-		sv->select_valid = false;
-		return;
-	}
-
-	switch (sv->xsection_type) {
-	case XSECTION_XY:
-		v3_set(sv->select, sel_2d[0], sel_2d[1], sv->xsection_frac);
-		break;
-
-	case XSECTION_XZ:
-		v3_set(sv->select, sel_2d[0], sv->xsection_frac, sel_2d[1]);
-		break;
 
-	case XSECTION_YZ:
-		v3_set(sv->select, sv->xsection_frac, sel_2d[0], sel_2d[1]);
-		break;
-	}
-
-	sv->select_valid = true;
 }
 
 void ui_event_window(SDL_Event *event, ui_window *uiw)
@@ -192,22 +172,21 @@ void ui_event_window(SDL_Event *event, ui_window *uiw)
 		break;
 
 	case SDL_MOUSEBUTTONDOWN:
-		if (event->button.button == SDL_BUTTON_LEFT &&
-		    event->button.y > sv->margin_top &&
-		    event->button.y < uiw->h - sv->margin_bottom)
-			sv->dragging = true;
-
-		if (event->button.button == SDL_BUTTON_RIGHT) {
-			vec2_t sel_2d;
+		if (event->button.y > sv->margin_top &&
+		    event->button.y < uiw->h - sv->margin_bottom) {
+			if (event->button.button == SDL_BUTTON_LEFT)
+				sv->dragging = true;
 
-			v2_div_mst2(sel_2d, uiw->mouse, sv->tf_x2s);
-			ui_simview_set_select(sv, sel_2d);
+			if (event->button.button == SDL_BUTTON_RIGHT)
+				sv->selecting = true;
 		}
 		break;
 
 	case SDL_MOUSEBUTTONUP:
 		if (event->button.button == SDL_BUTTON_LEFT)
 			sv->dragging = false;
+		else if (event->button.button == SDL_BUTTON_RIGHT)
+			sv->selecting = false;
 		break;
 
 	case SDL_MOUSEMOTION:
@@ -256,6 +235,14 @@ void ui_event_window(SDL_Event *event, ui_window *uiw)
 		case SDLK_p:
 			itc_chan_push(&sv->sim->ctl, PHY_CMD_RESUME, NULL);
 			break;
+
+		case SDLK_l:
+			itc_chan_push(&sv->sim->ctl, PHY_CMD_STEP, NULL);
+			break;
+
+		case SDLK_r:
+			itc_chan_push(&sv->sim->ctl, PHY_CMD_RESET, NULL);
+			break;
 		}
 	}
 }
@@ -342,6 +329,38 @@ void ui_draw_simview_selection(ui_window *uiw)
 	phy_sim *sim = sv->sim;
 	vec2_t select_s;
 
+	if (sv->selecting)
+	{
+		vec2_t select_2d;
+
+		v2_div_mst2(select_2d, uiw->mouse, sv->tf_x2s);
+
+		if (select_2d[0] < 0.0f || select_2d[0] > 1.0f ||
+		    select_2d[1] < 0.0f || select_2d[1] > 1.0f) {
+			sv->select_valid = false;
+			return;
+		}
+
+		switch (sv->xsection_type) {
+		case XSECTION_XY:
+			v3_set(sv->select,
+			      select_2d[0], select_2d[1], sv->xsection_frac);
+			break;
+
+		case XSECTION_XZ:
+			v3_set(sv->select,
+			       select_2d[0], sv->xsection_frac, select_2d[1]);
+			break;
+
+		case XSECTION_YZ:
+			v3_set(sv->select,
+			       sv->xsection_frac, select_2d[0], select_2d[1]);
+			break;
+		}
+
+		sv->select_valid = true;
+	}
+
 	if (!sv->select_valid)
 		return;
 
@@ -377,6 +396,8 @@ void ui_draw_simview_bars(ui_window *uiw, float dt)
 
 	ui_simview *sv = &uiw->simview;
 	phy_sim *sim = sv->sim;
+	phy_field_em *field_em = sim->fields + 1;
+	phy_field_info *fi = &sim->field_info;
 
 	// upper
 
@@ -406,16 +427,30 @@ void ui_draw_simview_bars(ui_window *uiw, float dt)
 	if (sv->select_valid) {
 		size_t x, y, z, offs;
 
-		sv->margin_bottom += 2 * theme.font_size;
+		sv->margin_bottom += 3 * theme.font_size;
 
-		r_draw_rect(uiw->rw, 0, uiw->h - 3 * theme.font_size,
-			    uiw->w, 2 * theme.font_size, theme.color_main);
+		r_draw_rect(uiw->rw, 0, uiw->h - 4 * theme.font_size,
+			    uiw->w, 3 * theme.font_size, theme.color_main);
 
-		r_draw_text(uiw->rw, 0, uiw->h - theme.font_size,
-			    theme.font_size,
-			    va("x = [%f %f %f]", sv->select[0],
-			    sv->select[1], sv->select[2]),
+		x = sv->select[0] * fi->width;
+		y = sv->select[1] * fi->height;
+		z = sv->select[2] * fi->depth;
+		offs = z * fi->zstr + y * fi->ystr + x * fi->xstr;
+
+		r_draw_text(uiw->rw, 0, uiw->h - 4 * theme.font_size,
+			    theme.font_size, va("x = [%zu %zu %zu]", x, y, z),
 			    theme.color_text, 0);
+
+
+		r_draw_text(uiw->rw, 0, uiw->h - 3 * theme.font_size,
+			    theme.font_size, va("E(x) = [%+E %+E %+E]",
+			    field_em->E[offs], field_em->E[offs + 1],
+			    field_em->E[offs + 2]), theme.color_text, 0);
+
+		r_draw_text(uiw->rw, 0, uiw->h - 2 * theme.font_size,
+			    theme.font_size, va("H(x) = [%+E %+E %+E]",
+			    field_em->H[offs], field_em->H[offs + 1],
+			    field_em->H[offs + 2]), theme.color_text, 0);
 	}
 }
 
-- 
cgit