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Code Pull Requests Releases Activity

allow FittedCanvasWidget to have it's root first child replaced

This commit is contained in:
Paul Davis 2021-12-16 18:54:32 -07:00
parent 5ad5603f1e
commit de6178093e
2 changed files with 11 additions and 1 deletions
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8
gtk2_ardour/fitted_canvas_widget.cc
View File

@ -76,10 +76,16 @@ void
FittedCanvasWidget::on_size_allocate (Gtk::Allocation& alloc)
{
GtkCanvas::on_size_allocate(alloc);
repeat_size_allocation ();
}
void
FittedCanvasWidget::repeat_size_allocation ()
{
if (!_root.items().empty()) {
ArdourCanvas::Item *fitted = *_root.items().begin();
fitted->size_allocate(ArdourCanvas::Rect(0,0,alloc.get_width(), alloc.get_height()));
Gtk::Allocation a = get_allocation ();
fitted->size_allocate (ArdourCanvas::Rect (0, 0, a.get_width(), a.get_height()));
}
}

4
gtk2_ardour/fitted_canvas_widget.h
View File

@ -55,10 +55,14 @@ public:
/* per gtk convention you may use -1 for width OR height if you don't care about that dimension */
FittedCanvasWidget(float nominal_width, float nominal_height, bool follow_scale=true);
/* call if the root item's first child is changed, to force a size-allocate on it */
void repeat_size_allocation ();
void on_size_request (Gtk::Requisition* req); //always returns the nominal size, regardless of children
void on_size_allocate (Gtk::Allocation& alloc);
private:
ArdourCanvas::Rect _allocation;
float _nominal_width;
float _nominal_height;
bool _follow_scale;