parse -C argument in flcurve

1 files changed, 27 insertions, 13 deletions

diff --git a/src/CurveEditor.cxx b/src/CurveEditor.cxx
index 8ff8671..cfa6592 100644
--- a/src/CurveEditor.cxx
+++ b/src/CurveEditor.cxx
@@ -18,19 +18,12 @@ CurveEditor::CurveEditor(int my_x, int my_y, int my_w, int my_h) :
 
 	marked_point = -1;
 
-	n = 5;
-	X = (double*) calloc(n, sizeof(double));
-	Y = (double*) calloc(n, sizeof(double));
-
-
-	for (int i = 0; i < n; i++) {
-		X[i] = (double) i / (n - 1);
-		Y[i] = (double) i / (n - 1);
-	}
+	n = 0;
+	X = NULL;
+	Y = NULL;
 
 	acc = gsl_interp_accel_alloc ();
-	spline = gsl_spline_alloc (gsl_interp_cspline, n);
-	gsl_spline_init (spline, X, Y, n);
+	spline = NULL;
 }
 
 void
@@ -83,7 +76,7 @@ CurveEditor::handle(int event) {
 			return 1;
 			break;
 		case FL_DRAG:
-			set(marked_point,  (double) mark_x / w(), 1.0 - (double) mark_y / h());
+			set_point(marked_point,  (double) mark_x / w(), 1.0 - (double) mark_y / h());
 
 			return 1;
 			break;
@@ -102,7 +95,28 @@ CurveEditor::handle(int event) {
 }
 
 void
-CurveEditor::set(int i, double _x, double _y) {
+CurveEditor::add_point(double _x, double _y) {
+	if ((_x < 0.0 || _x > 1.0 || _y < 0.0 || _y > 1.0) ||
+		n > 0 && _x <= X[n]) {
+		return;
+	}
+	n++;
+	X = (double*) realloc(X, n * sizeof(double));
+	Y = (double*) realloc(Y, n * sizeof(double));
+
+	X[n - 1] = _x;
+	Y[n - 1] = _y;
+}
+
+void
+CurveEditor::init() {
+	if (spline) gsl_spline_free(spline);
+	spline = gsl_spline_alloc (gsl_interp_cspline, n);
+	gsl_spline_init (spline, X, Y, n);
+}
+
+void
+CurveEditor::set_point(int i, double _x, double _y) {
 	if (i >= n ||
 		(_x < 0.0 || _x > 1.0 || _y < 0.0 || _y > 1.0) ||
 		(i < n - 1 && _x >= X[i + 1]) ||