From 26058b69e8dfb2d2e64f91dce886f2f0d90b23b3 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sun, 9 Jun 2019 23:02:46 +0200
Subject: Basic selection and level setting

---
 src/command.c   | 42 +++++++++++++++++++++++++++++++++++++++++-
 src/nanolight.c | 18 +++++++++++++++++-
 src/nanolight.h |  3 +++
 3 files changed, 61 insertions(+), 2 deletions(-)

diff --git a/src/command.c b/src/command.c
index c6b64e7..62c047b 100644
--- a/src/command.c
+++ b/src/command.c
@@ -205,16 +205,56 @@ static void show_tokens(struct token *tokens, int n, struct nanolight *nl)
 }
 
 
+static void set_level(struct nanolight *nl, int val, enum attr_class cls)
+{
+	int i;
+
+	if ( cls == ATT_INTENSITY ) {
+		val *= 255;
+		val /= 100;
+	}
+
+	for ( i=0; i<nl->n_sel; i++ ) {
+		int j;
+		struct fixture *fix = &nl->fixtures[nl->selection[i]];
+		for ( j=0; j<fix->cls->n_attrs; j++ ) {
+			if ( fix->cls->attrs[j].cls == cls ) {
+				fix->attr_vals[j] = val;
+				break;
+			}
+		}
+	}
+}
+
+
 int command_run(const char *cmd, struct nanolight *nl)
 {
 	struct token tokens[1024];
-	int n;
+	int i, n;
 
 	n = find_tokens(cmd, tokens, nl);
 	if ( n == 0 ) return 1;
 
 	show_tokens(tokens, n, nl);
 
+	i = 0;
+	if ( tokens[i].type == TK_FIXTURE ) {
+		nl->n_sel = 0;
+		for ( i=0; i<n; i++ ) {
+			if ( tokens[i].type == TK_FIXTURE ) {
+				nl->selection[nl->n_sel++] = tokens[i].fixture_index;
+			} else {
+				break;
+			}
+		}
+	}
+
+	if ( tokens[i].type == TK_AT ) {
+		if ( tokens[i+1].type == TK_LEVEL ) {
+			set_level(nl, tokens[i+1].val, ATT_INTENSITY);
+		}
+	}
+
 	return 0;
 }
 
diff --git a/src/nanolight.c b/src/nanolight.c
index 5f76dd5..6fe379e 100644
--- a/src/nanolight.c
+++ b/src/nanolight.c
@@ -61,6 +61,16 @@ static double get_attr_val(struct fixture *fix, enum attr_class acls)
 }
 
 
+static int fixture_selected(struct nanolight *nl, struct fixture *fix)
+{
+	int i;
+	for ( i=0; i<nl->n_sel; i++ ) {
+		if ( &nl->fixtures[nl->selection[i]] == fix ) return 1;
+	}
+	return 0;
+}
+
+
 static void draw_fixture(cairo_t *cr, PangoContext *pc, PangoFontDescription *fontdesc,
                          struct nanolight *nl, struct fixture *fix)
 {
@@ -69,7 +79,11 @@ static void draw_fixture(cairo_t *cr, PangoContext *pc, PangoFontDescription *fo
 	char tmp[32];
 
 	cairo_rectangle(cr, 0.5, 0.5, w, 3.0/2.0*w);
-	cairo_set_source_rgb(cr, 0.3, 0.3, 0.3);
+	if ( fixture_selected(nl, fix) ) {
+		cairo_set_source_rgb(cr, 0.3, 0.3, 0.9);
+	} else {
+		cairo_set_source_rgb(cr, 0.3, 0.3, 0.3);
+	}
 	cairo_fill_preserve(cr);
 	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
 	cairo_set_line_width(cr, 1.0);
@@ -257,6 +271,7 @@ static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event, struct nanoligh
 		case GDK_KEY_Escape :
 		nl->cmdline[0] = '\0';
 		nl->cursor_idx = 0;
+		nl->n_sel = 0;
 		redraw(nl);
 		claim = 1;
 		break;
@@ -383,6 +398,7 @@ int main(int argc, char *argv[])
 	nl.max_fixtures = 0;
 	nl.cmdline[0] = '\0';
 	nl.cursor_idx = 0;
+	nl.n_sel = 0;
 
 	create_fixture(&nl, &cls, "mh1", 1);
 	create_fixture(&nl, &cls, "mh2", 52);
diff --git a/src/nanolight.h b/src/nanolight.h
index 5c08cd7..124e214 100644
--- a/src/nanolight.h
+++ b/src/nanolight.h
@@ -76,6 +76,9 @@ struct nanolight
 	char cmdline[1024];
 	int cursor_idx;
 	PangoLayout *layout;
+
+	int selection[1024];
+	int n_sel;
 };
 
 
-- 
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