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Add Canvas::get_last_render_start_timestamp method

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This commit is contained in:
Tim Mayberry 2017-03-28 14:05:03 +10:00
parent 8538ba35fe
commit ab13e87ec2
2 changed files with 7 additions and 0 deletions
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3
libs/canvas/canvas.cc
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@ -58,6 +58,7 @@ uint32_t Canvas::tooltip_timeout_msecs = 750;
Canvas::Canvas () Canvas::Canvas ()
: _root (this) : _root (this)
, _bg_color (rgba_to_color (0, 1.0, 0.0, 1.0)) , _bg_color (rgba_to_color (0, 1.0, 0.0, 1.0))
, _last_render_start_timestamp(0)
{ {
set_epoch (); set_epoch ();
} }
@ -103,6 +104,8 @@ Canvas::render (Rect const & area, Cairo::RefPtr<Cairo::Context> const & context
{ {
PreRender (); // emit signal PreRender (); // emit signal
_last_render_start_timestamp = g_get_monotonic_time();
#ifdef CANVAS_DEBUG #ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) { if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
cerr << this << " RENDER: " << area << endl; cerr << this << " RENDER: " << area << endl;

4
libs/canvas/canvas/canvas.h
View file

@ -89,6 +89,8 @@ public:
void prepare_for_render (Rect const &) const; void prepare_for_render (Rect const &) const;
gint64 get_last_render_start_timestamp () const { return _last_render_start_timestamp; }
/** @return root group */ /** @return root group */
Item* root () { Item* root () {
return &_root; return &_root;
@ -169,6 +171,8 @@ protected:
Root _root; Root _root;
Color _bg_color; Color _bg_color;
mutable gint64 _last_render_start_timestamp;
static uint32_t tooltip_timeout_msecs; static uint32_t tooltip_timeout_msecs;
void queue_draw_item_area (Item *, Rect); void queue_draw_item_area (Item *, Rect);