Ardour  8.7-15-gadf511264b
ArdourCanvas::FramedCurve Class Reference

#include <framed_curve.h>

Inheritance diagram for ArdourCanvas::FramedCurve:
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Public Types

enum  CurveFill { None , Inside , Outside }
 
- Public Types inherited from ArdourCanvas::Fill
typedef std::vector< std::pair< double, Gtkmm2ext::Color > > StopList
 
- Public Types inherited from ArdourCanvas::InterpolatedCurve
enum  SplineType { CatmullRomUniform , CatmullRomCentripetal }
 

Public Member Functions

 FramedCurve (Canvas *)
 
 FramedCurve (Item *)
 
void compute_bounding_box () const
 
void render (Rect const &area, Cairo::RefPtr< Cairo::Context >) const
 
void set (Points const &)
 
void set_points_per_segment (uint32_t n)
 
void set_fill_mode (CurveFill cf)
 
- Public Member Functions inherited from ArdourCanvas::PolyItem
 PolyItem (Canvas *)
 
 PolyItem (Item *)
 
virtual void add_point (Duple const &)
 
virtual void clear ()
 
void pop_back ()
 
Points const & get () const
 
void dump (std::ostream &) const
 
- Public Member Functions inherited from ArdourCanvas::Item
 Item (Canvas *)
 
 Item (Item *)
 
 Item (Item *, Duple const &p)
 
virtual ~Item ()
 
void redraw () const
 
virtual void prepare_for_render (Rect const &area) const
 
virtual void add_items_at_point (Duple point, std::vector< Item const * > &items) const
 
virtual bool covers (Duple const &point) const
 
void grab ()
 
void ungrab ()
 
void unparent ()
 
void reparent (Item *, bool already_added=false)
 
Itemparent () const
 
uint32_t depth () const
 
const Itemclosest_ancestor_with (const Item &other) const
 
bool common_ancestor_within (uint32_t, const Item &other) const
 
bool is_ancestor_of (const Item &candidate) const
 
bool is_descendant_of (const Item &candidate) const
 
void set_position (Duple)
 
void set_x_position (Coord)
 
void set_y_position (Coord)
 
void move (Duple)
 
Duple position () const
 
Duple window_origin () const
 
Duple canvas_origin () const
 
ScrollGroupscroll_parent () const
 
virtual void size_request (double &w, double &h) const
 
void set_size_request (double w, double h)
 
void set_size_request_to_display_given_text (const std::vector< std::string > &strings, gint hpadding, gint vpadding)
 
void size_allocate (Rect const &)
 
virtual void _size_allocate (Rect const &)
 
virtual void size_allocate_children (Rect const &r)
 
Rect allocation () const
 
void set_layout_sensitive (bool)
 
bool layout_sensitive () const
 
Rect bounding_box () const
 
Coord height () const
 
Coord width () const
 
Duple item_to_parent (Duple const &) const
 
Rect item_to_parent (Rect const &) const
 
Duple parent_to_item (Duple const &) const
 
Rect parent_to_item (Rect const &) const
 
void canvas_to_item (Coord &, Coord &) const
 
void item_to_canvas (Coord &, Coord &) const
 
Duple canvas_to_item (Duple const &) const
 
Rect item_to_canvas (Rect const &) const
 
Duple item_to_canvas (Duple const &) const
 
Rect canvas_to_item (Rect const &) const
 
Duple item_to_window (Duple const &, bool rounded=true) const
 
Duple window_to_item (Duple const &) const
 
Rect item_to_window (Rect const &, bool rounded=true) const
 
Rect window_to_item (Rect const &) const
 
void raise_to_top ()
 
void raise (int)
 
void lower_to_bottom ()
 
virtual void hide ()
 
virtual void show ()
 
void block_change_notifications ()
 
void unblock_change_notifications ()
 
bool self_visible () const
 
bool visible () const
 
Canvascanvas () const
 
void set_ignore_events (bool)
 
bool ignore_events () const
 
void set_data (std::string const &, void *)
 
void * get_data (std::string const &) const
 
virtual void add (Item *)
 
virtual void add_front (Item *)
 
virtual void remove (Item *)
 
void clear (bool with_delete=false)
 
std::list< Item * > const & items () const
 
void raise_child_to_top (Item *)
 
void raise_child (Item *, int)
 
void lower_child_to_bottom (Item *)
 
virtual void child_changed (bool bbox_changed)
 
PackOptions pack_options () const
 
void set_pack_options (PackOptions)
 
std::string whoami () const
 
const std::string & tooltip () const
 
void set_tooltip (const std::string &)
 
void start_tooltip_timeout ()
 
void stop_tooltip_timeout ()
 
std::string whatami () const
 
bool resize_queued () const
 
void queue_resize ()
 
bool scroll_translation () const
 
void disable_scroll_translation ()
 
virtual void layout ()
 
Duple position_offset () const
 
- Public Member Functions inherited from ArdourCanvas::Fill
 Fill (Item &self)
 
virtual ~Fill ()
 
virtual void set_fill_color (Gtkmm2ext::Color)
 
virtual void set_fill (bool)
 
Gtkmm2ext::Color fill_color () const
 
bool fill () const
 
void set_gradient (StopList const &stops, bool is_vertical)
 
void set_pattern (Cairo::RefPtr< Cairo::Pattern >)
 
- Public Member Functions inherited from ArdourCanvas::Outline
 Outline (Item &self)
 
virtual ~Outline ()
 
Gtkmm2ext::Color outline_color () const
 
virtual void set_outline_color (Gtkmm2ext::Color)
 
Distance outline_width () const
 
virtual void set_outline_width (Distance)
 
bool outline () const
 
virtual void set_outline (bool)
 

Private Member Functions

void interpolate ()
 

Private Attributes

Points samples
 
Points::size_type n_samples
 
uint32_t points_per_segment
 
CurveFill curve_fill
 

Additional Inherited Members

- Public Attributes inherited from ArdourCanvas::Item
sigc::signal1< bool, GdkEvent *, EventAccumulator< bool > > Event
 
bool _resize_queued
 
double _requested_width
 
double _requested_height
 
- Static Public Attributes inherited from ArdourCanvas::Item
static int default_items_per_cell
 
- Protected Member Functions inherited from ArdourCanvas::PolyItem
void render_path (Rect const &, Cairo::RefPtr< Cairo::Context >) const
 
Duple const & left_edge () const
 
Duple const & right_edge () const
 
- Protected Member Functions inherited from ArdourCanvas::Item
void begin_change ()
 
void end_change ()
 
void begin_visual_change ()
 
void end_visual_change ()
 
void set_bbox_clean () const
 
void set_bbox_dirty () const
 
bool bbox_dirty () const
 
void invalidate_lut () const
 
void clear_items (bool with_delete)
 
void ensure_lut () const
 
void add_child_bounding_boxes (bool include_hidden=false) const
 
void render_children (Rect const &area, Cairo::RefPtr< Cairo::Context > context) const
 
void prepare_for_render_children (Rect const &area) const
 
Duple scroll_offset () const
 
- Protected Member Functions inherited from ArdourCanvas::Fill
void setup_fill_context (Cairo::RefPtr< Cairo::Context >) const
 
void setup_gradient_context (Cairo::RefPtr< Cairo::Context >, Rect const &, Duple const &) const
 
- Protected Member Functions inherited from ArdourCanvas::Outline
void setup_outline_context (Cairo::RefPtr< Cairo::Context >) const
 
- Static Protected Member Functions inherited from ArdourCanvas::InterpolatedCurve
static void interpolate (const Points &coordinates, uint32_t points_per_segment, SplineType curve_type, bool closed, Points &results)
 
- Protected Attributes inherited from ArdourCanvas::PolyItem
Points _points
 
- Protected Attributes inherited from ArdourCanvas::Item
Canvas_canvas
 
Item_parent
 
ScrollGroup_scroll_parent
 
Duple _position
 
bool _visible
 
Rect _pre_change_bounding_box
 
Rect _bounding_box
 
PackOptions _pack_options
 
Rect _allocation
 
bool _layout_sensitive
 
std::map< std::string, void * > _data
 
LookupTable_lut
 
std::list< Item * > _items
 
- Protected Attributes inherited from ArdourCanvas::Fill
Item_self
 
Gtkmm2ext::Color _fill_color
 
bool _fill
 
bool _transparent
 
StopList _stops
 
bool _vertical_gradient
 
Cairo::RefPtr< Cairo::Pattern > _pattern
 
- Protected Attributes inherited from ArdourCanvas::Outline
Item_self
 
Gtkmm2ext::Color _outline_color
 
Distance _outline_width
 
bool _outline
 

Detailed Description

Definition at line 34 of file framed_curve.h.

Member Enumeration Documentation

◆ CurveFill

Enumerator
None 
Inside 
Outside 

Definition at line 40 of file framed_curve.h.

Constructor & Destructor Documentation

◆ FramedCurve() [1/2]

ArdourCanvas::FramedCurve::FramedCurve ( Canvas )

◆ FramedCurve() [2/2]

ArdourCanvas::FramedCurve::FramedCurve ( Item )

Member Function Documentation

◆ compute_bounding_box()

void ArdourCanvas::FramedCurve::compute_bounding_box ( ) const
virtual

Update _bounding_box and _bounding_box_dirty

Reimplemented from ArdourCanvas::PolyItem.

◆ interpolate()

void ArdourCanvas::FramedCurve::interpolate ( )
private

◆ render()

void ArdourCanvas::FramedCurve::render ( Rect const &  area,
Cairo::RefPtr< Cairo::Context >   
) const
virtual

Render this item to a Cairo context.

Parameters
areaArea to draw, in window coordinates

Items must convert their own coordinates into window coordinates because Cairo is limited to a fixed point coordinate space that does not extend as far as the Ardour timeline. All rendering must be done using coordinates that do not exceed the (rough) limits of the canvas' window, to avoid odd errors within Cairo as it converts doubles into its fixed point format and then tesselates the results.

Implements ArdourCanvas::Item.

◆ set()

void ArdourCanvas::FramedCurve::set ( Points const &  )
virtual

Reimplemented from ArdourCanvas::PolyItem.

◆ set_fill_mode()

void ArdourCanvas::FramedCurve::set_fill_mode ( CurveFill  cf)
inline

Definition at line 52 of file framed_curve.h.

◆ set_points_per_segment()

void ArdourCanvas::FramedCurve::set_points_per_segment ( uint32_t  n)

Member Data Documentation

◆ curve_fill

CurveFill ArdourCanvas::FramedCurve::curve_fill
private

Definition at line 58 of file framed_curve.h.

◆ n_samples

Points::size_type ArdourCanvas::FramedCurve::n_samples
private

Definition at line 56 of file framed_curve.h.

◆ points_per_segment

uint32_t ArdourCanvas::FramedCurve::points_per_segment
private

Definition at line 57 of file framed_curve.h.

◆ samples

Points ArdourCanvas::FramedCurve::samples
private

Definition at line 55 of file framed_curve.h.


The documentation for this class was generated from the following file: