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-rw-r--r--src/Canvas.cpp31
1 files changed, 29 insertions, 2 deletions
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index 24cfaf4..7ab8577 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -247,6 +247,7 @@ struct GanvCanvasImpl {
#ifdef GANV_FDGL
this->layout_idle_id = 0;
+ this->sprung_layout = FALSE;
#endif
_animate_idle_id = g_timeout_add(120, on_animate_timeout, this);
@@ -444,7 +445,8 @@ struct GanvCanvasImpl {
gboolean locked;
#ifdef GANV_FDGL
- guint layout_idle_id;
+ guint layout_idle_id;
+ gboolean sprung_layout;
#endif
};
@@ -789,6 +791,9 @@ GanvCanvasImpl::layout_iteration()
if (_drag_state == EDGE) {
return FALSE; // Canvas is locked, halt layout process
}
+ if (!sprung_layout) {
+ return FALSE; // We shouldn't be running at all
+ }
static const double T_PER_US = .0001; // Sym time per real microsecond
@@ -1948,7 +1953,7 @@ void
ganv_canvas_contents_changed(GanvCanvas* canvas)
{
#ifdef GANV_FDGL
- if (!canvas->impl->layout_idle_id) {
+ if (!canvas->impl->layout_idle_id && canvas->impl->sprung_layout) {
canvas->impl->layout_idle_id = g_timeout_add_full(
G_PRIORITY_DEFAULT_IDLE,
33,
@@ -2554,6 +2559,28 @@ ganv_canvas_export_dot(GanvCanvas* canvas, const char* filename)
}
gboolean
+ganv_canvas_supports_sprung_layout(GanvCanvas* canvas)
+{
+#ifdef GANV_FDGL
+ return TRUE;
+#else
+ return FALSE;
+#endif
+}
+
+gboolean
+ganv_canvas_set_sprung_layout(GanvCanvas* canvas, gboolean sprung_layout)
+{
+#ifndef GANV_FDGL
+ return FALSE;
+#else
+ canvas->impl->sprung_layout = sprung_layout;
+ ganv_canvas_contents_changed(canvas);
+ return TRUE;
+#endif
+}
+
+gboolean
ganv_canvas_get_locked(GanvCanvas* canvas)
{
return canvas->impl->locked;