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Canvas: temporary easy way to get debug output from Canvas::render() in a test program

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This commit is contained in:
Paul Davis 2020-06-24 18:11:37 -06:00
parent 427998e2d2
commit f5d67e6520
2 changed files with 18 additions and 10 deletions
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7
libs/canvas/canvas.cc
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@ -108,6 +108,9 @@ Canvas::zoomed ()
pick_current_item (0); // no current mouse position
}
static bool debug_render = true;
#define CANVAS_DEBUG
/** Render an area of the canvas.
* @param area Area in window coordinates.
* @param context Cairo context to render to.
@ -120,7 +123,7 @@ Canvas::render (Rect const & area, Cairo::RefPtr<Cairo::Context> const & context
_last_render_start_timestamp = g_get_monotonic_time();
#ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
if (debug_render || DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
cerr << this << " RENDER: " << area << endl;
//cerr << "CANVAS @ " << this << endl;
//dump (cerr);
@ -133,6 +136,7 @@ Canvas::render (Rect const & area, Cairo::RefPtr<Cairo::Context> const & context
Rect root_bbox = _root.bounding_box();
if (!root_bbox) {
/* the root has no bounding box, so there's nothing to render */
cerr << "no bbox\n";
return;
}
@ -143,6 +147,7 @@ Canvas::render (Rect const & area, Cairo::RefPtr<Cairo::Context> const & context
area, so render it.
*/
cerr << "root draw\n";
_root.render (draw, context);
#if defined CANVAS_DEBUG && !PLATFORM_WINDOWS