+ void horizontal_size_request (GtkRequisition*);
+ void horizontal_size_allocate (Gtk::Allocation&);
+ void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+
+ static bool no_rgba_overlay;
+
+ static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
+ int, int, int *, float *, int, bool);
+ static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
+ int, int, int *, float *, int);
+ static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
+ int, int, int *, float *, int);
+
+ static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
+ int, int, int *, bool, bool);
+ static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
+ int, int, int *, bool);
+ static Cairo::RefPtr<Cairo::Pattern> request_horizontal_background (
+ int, int, int *, bool);
+
+ struct Pattern10MapKey {
+ Pattern10MapKey (
+ int w, int h,
+ float stp0, float stp1, float stp2, float stp3,
+ int c0, int c1, int c2, int c3,
+ int c4, int c5, int c6, int c7,
+ int c8, int c9, int st
+ )
+ : dim(w, h)
+ , stp(stp0, stp1, stp2, stp3)
+ , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
+ , style(st)
+ {}
+ inline bool operator<(const Pattern10MapKey& rhs) const {
+ return (dim < rhs.dim)
+ || (dim == rhs.dim && stp < rhs.stp)
+ || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
+ || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
+ }
+ boost::tuple<int, int> dim;
+ boost::tuple<float, float, float, float> stp;
+ boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
+ int style;
+ };
+ typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
+
+ struct PatternBgMapKey {
+ PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
+ : dim(w, h)
+ , cols(c0, c1)
+ , sh(shade)
+ {}
+ inline bool operator<(const PatternBgMapKey& rhs) const {
+ return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
+ }
+ boost::tuple<int, int> dim;
+ boost::tuple<int, int> cols;
+ bool sh;
+ };
+ typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
+
+ static Pattern10Map vm_pattern_cache;
+ static PatternBgMap vb_pattern_cache;
+ static Pattern10Map hm_pattern_cache;
+ static PatternBgMap hb_pattern_cache;
+ static int min_pattern_metric_size; // min dimension for axis that displays the meter level
+ static int max_pattern_metric_size; // max dimension for axis that displays the meter level