/* Copyright (C) 2003 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __gtk_ardour_time_axis_view_item_h__ #define __gtk_ardour_time_axis_view_item_h__ #include #include #include "pbd/signals.h" #include "selectable.h" #include "simplerect.h" #include "canvas.h" class TimeAxisView; using ARDOUR::framepos_t; using ARDOUR::framecnt_t; /** * Base class for items that may appear upon a TimeAxisView. */ class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList { public: virtual ~TimeAxisViewItem(); virtual bool set_position(framepos_t, void*, double* delta = 0); framepos_t get_position() const; virtual bool set_duration(framecnt_t, void*); framecnt_t get_duration() const; virtual void set_max_duration(framecnt_t, void*); framecnt_t get_max_duration() const; virtual void set_min_duration(framecnt_t, void*); framecnt_t get_min_duration() const; virtual void set_position_locked(bool, void*); bool get_position_locked() const; void set_max_duration_active(bool, void*); bool get_max_duration_active() const; void set_min_duration_active(bool, void*); bool get_min_duration_active() const; void set_item_name(std::string, void*); virtual std::string get_item_name() const; virtual void set_selected(bool yn); void set_sensitive (bool yn) { _sensitive = yn; } bool sensitive () const { return _sensitive; } TimeAxisView& get_time_axis_view () const; void set_name_text(const std::string&); virtual void set_height(double h); void set_y (double); void set_color (Gdk::Color const &); ArdourCanvas::Item* get_canvas_frame(); ArdourCanvas::Group* get_canvas_group(); ArdourCanvas::Item* get_name_highlight(); ArdourCanvas::Pixbuf* get_name_pixbuf(); virtual void set_samples_per_unit(double spu); double get_samples_per_unit(); virtual void raise () { return; } virtual void raise_to_top () { return; } virtual void lower () { return; } virtual void lower_to_bottom () { return; } virtual void hide_rect (); virtual void show_rect (); /** @return true if the name area should respond to events */ bool name_active() const { return name_connected; } // Default sizes, font and spacing static Pango::FontDescription* NAME_FONT; static void set_constant_heights (); static const double NAME_X_OFFSET; static const double GRAB_HANDLE_LENGTH; /* these are not constant, but vary with the pixel size of the font used to display the item name. */ static int NAME_HEIGHT; static double NAME_Y_OFFSET; static double NAME_HIGHLIGHT_SIZE; static double NAME_HIGHLIGHT_THRESH; /** * Emitted when this Group has been removed. * This is different to the CatchDeletion signal in that this signal * is emitted during the deletion of this Time Axis, and not during * the destructor, this allows us to capture the source of the deletion * event */ sigc::signal ItemRemoved; /** Emitted when the name of this item is changed */ sigc::signal NameChanged; /** Emiited when the position of this item changes */ sigc::signal PositionChanged; /** Emitted when the position lock of this item is changed */ sigc::signal PositionLockChanged; /** Emitted when the duration of this item changes */ sigc::signal DurationChanged; /** Emitted when the maximum item duration is changed */ sigc::signal MaxDurationChanged; /** Emitted when the mionimum item duration is changed */ sigc::signal MinDurationChanged; enum Visibility { ShowFrame = 0x1, ShowNameHighlight = 0x2, ShowNameText = 0x4, ShowHandles = 0x8, HideFrameLeft = 0x10, HideFrameRight = 0x20, HideFrameTB = 0x40, FullWidthNameHighlight = 0x80 }; protected: TimeAxisViewItem(const std::string &, ArdourCanvas::Group&, TimeAxisView&, double, Gdk::Color const &, framepos_t, framepos_t, bool recording = false, bool automation = false, Visibility v = Visibility (0)); TimeAxisViewItem (const TimeAxisViewItem&); void init (const std::string&, double, Gdk::Color const &, framepos_t, framepos_t, Visibility, bool, bool); virtual void compute_colors (Gdk::Color const &); virtual void set_colors(); virtual void set_frame_color(); void set_trim_handle_colors(); virtual void reset_width_dependent_items (double); void reset_name_width (double); void update_name_pixbuf_visibility (); static gint idle_remove_this_item(TimeAxisViewItem*, void*); /** time axis that this item is on */ TimeAxisView& trackview; /** indicates whether this item is locked to its current position */ bool position_locked; /** position of this item on the timeline */ framepos_t frame_position; /** duration of this item upon the timeline */ framecnt_t item_duration; /** maximum duration that this item can have */ framecnt_t max_item_duration; /** minimum duration that this item can have */ framecnt_t min_item_duration; /** indicates whether the max duration constraint is active */ bool max_duration_active; /** indicates whether the min duration constraint is active */ bool min_duration_active; /** samples per canvas unit */ double samples_per_unit; /** should the item respond to events */ bool _sensitive; /** * The unique item name of this Item. * Each item upon a time axis must have a unique id. */ std::string item_name; /** true if the name should respond to events */ bool name_connected; /** true if a small vestigial rect should be shown when the item gets very narrow */ bool show_vestigial; uint32_t fill_opacity; uint32_t fill_color; uint32_t frame_color_r; uint32_t frame_color_g; uint32_t frame_color_b; uint32_t selected_frame_color_r; uint32_t selected_frame_color_g; uint32_t selected_frame_color_b; uint32_t label_color; uint32_t handle_color_r; uint32_t handle_color_g; uint32_t handle_color_b; uint32_t lock_handle_color_r; uint32_t lock_handle_color_g; uint32_t lock_handle_color_b; uint32_t last_item_width; int name_pixbuf_width; bool wide_enough_for_name; bool high_enough_for_name; bool rect_visible; ArdourCanvas::Group* group; ArdourCanvas::SimpleRect* vestigial_frame; ArdourCanvas::SimpleRect* frame; ArdourCanvas::Pixbuf* name_pixbuf; ArdourCanvas::SimpleRect* name_highlight; /* with these two values, if frame_handle_start == 0 then frame_handle_end will also be 0 */ ArdourCanvas::SimpleRect* frame_handle_start; ///< `frame' (fade) handle for the start of the item, or 0 ArdourCanvas::SimpleRect* frame_handle_end; ///< `frame' (fade) handle for the end of the item, or 0 double _height; Visibility visibility; bool _recregion; bool _automation; ///< true if this is an automation region view private: void parameter_changed (std::string); }; /* class TimeAxisViewItem */ #endif /* __gtk_ardour_time_axis_view_item_h__ */