240 lines
7.2 KiB
C++
240 lines
7.2 KiB
C++
/*
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* Copyright (C) 2005-2009 Nick Mainsbridge <mainsbridge@gmail.com>
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* Copyright (C) 2005-2019 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
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* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
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* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
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* Copyright (C) 2017-2019 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include <string>
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#include <gdk/gdk.h>
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#include <gdkmm/color.h>
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#include <pangomm/fontdescription.h>
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#include "ardour/types.h"
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#include "pbd/signals.h"
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#include "selectable.h"
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class TimeAxisView;
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namespace ArdourCanvas {
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class Pixbuf;
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class Rectangle;
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class Item;
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class Container;
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class Text;
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}
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using ARDOUR::samplepos_t;
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using ARDOUR::samplecnt_t;
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/**
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* Base class for items that may appear upon a TimeAxisView.
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*/
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class TimeAxisViewItem : public Selectable, public PBD::ScopedConnectionList
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{
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public:
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virtual ~TimeAxisViewItem();
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virtual bool set_position(Temporal::timepos_t const &, void*, double* delta = 0);
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Temporal::timepos_t get_position() const;
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virtual bool set_duration(Temporal::timecnt_t const &, void*);
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Temporal::timecnt_t get_duration() const;
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virtual void set_max_duration(Temporal::timecnt_t const &, void*);
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Temporal::timecnt_t get_max_duration() const;
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virtual void set_min_duration(Temporal::timecnt_t const &, void*);
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Temporal::timecnt_t get_min_duration() const;
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virtual void set_position_locked(bool, void*);
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bool get_position_locked() const;
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void set_max_duration_active(bool, void*);
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bool get_max_duration_active() const;
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void set_min_duration_active(bool, void*);
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bool get_min_duration_active() const;
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void set_item_name(std::string, void*);
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virtual std::string get_item_name() const;
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virtual void set_selected(bool yn);
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void set_sensitive (bool yn) { _sensitive = yn; }
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bool sensitive () const { return _sensitive; }
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TimeAxisView& get_time_axis_view () const;
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void set_name_text(const std::string&);
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virtual void set_height(double h);
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virtual double height() const { return _height; }
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void set_y (double);
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void set_color (uint32_t);
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void set_name_text_color ();
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virtual void set_frame_color();
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virtual uint32_t get_fill_color () const;
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ArdourCanvas::Item* get_canvas_frame();
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ArdourCanvas::Item* get_canvas_group() const;
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ArdourCanvas::Item* get_name_highlight();
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virtual void set_samples_per_pixel (double);
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double get_samples_per_pixel () const;
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virtual void drag_start();
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virtual void drag_end();
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bool dragging() const { return _dragging; }
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virtual void visual_layer_on_top() {}
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virtual void raise () {}
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virtual void raise_to_top () {}
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virtual void lower () {}
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virtual void lower_to_bottom () {}
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/** @return true if the name area should respond to events */
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bool name_active() const { return name_connected; }
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// Default sizes, font and spacing
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static Pango::FontDescription NAME_FONT;
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static void set_constant_heights ();
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static const double NAME_X_OFFSET;
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static const double GRAB_HANDLE_TOP;
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static const double GRAB_HANDLE_WIDTH;
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/* these are not constant, but vary with the pixel size
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* of the font used to display the item name.
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*/
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static int NAME_HEIGHT;
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static double NAME_Y_OFFSET;
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static double NAME_HIGHLIGHT_SIZE;
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static double NAME_HIGHLIGHT_THRESH;
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/**
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* Emitted when this Group has been removed.
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* This is different to the CatchDeletion signal in that this signal
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* is emitted during the deletion of this Time Axis, and not during
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* the destructor, this allows us to capture the source of the deletion
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* event
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*/
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sigc::signal<void,std::string,void*> ItemRemoved;
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enum Visibility {
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ShowFrame = 0x1,
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ShowNameHighlight = 0x2,
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ShowNameText = 0x4,
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ShowHandles = 0x8,
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HideFrameLeft = 0x10,
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HideFrameRight = 0x20,
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HideFrameTB = 0x40,
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FullWidthNameHighlight = 0x80
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};
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virtual void update_visibility () {}
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protected:
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TimeAxisViewItem (const std::string &, ArdourCanvas::Item&, TimeAxisView&, double, uint32_t fill_color,
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Temporal::timepos_t const &, Temporal::timecnt_t const &, bool recording = false, bool automation = false, Visibility v = Visibility (0));
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TimeAxisViewItem (const TimeAxisViewItem&);
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void init (ArdourCanvas::Item*, double, uint32_t, Temporal::timepos_t const &, Temporal::timecnt_t const &, Visibility, bool, bool);
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virtual bool canvas_group_event (GdkEvent*);
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virtual void set_colors();
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virtual void set_frame_gradient ();
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void set_trim_handle_colors();
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virtual void reset_width_dependent_items (double);
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static gint idle_remove_this_item(TimeAxisViewItem*, void*);
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/** time axis that this item is on */
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TimeAxisView& trackview;
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/** indicates whether this item is locked to its current position */
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bool position_locked;
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/** position of this item on the timeline */
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Temporal::timepos_t time_position;
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/** duration of this item upon the timeline */
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Temporal::timecnt_t item_duration;
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/** maximum duration that this item can have */
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Temporal::timecnt_t max_item_duration;
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/** minimum duration that this item can have */
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Temporal::timecnt_t min_item_duration;
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/** indicates whether the max duration constraint is active */
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bool max_duration_active;
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/** indicates whether the min duration constraint is active */
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bool min_duration_active;
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/** samples per canvas pixel */
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double samples_per_pixel;
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/** should the item respond to events */
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bool _sensitive;
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/**
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* The unique item name of this Item.
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* Each item upon a time axis must have a unique id.
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*/
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std::string item_name;
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/** true if the name should respond to events */
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bool name_connected;
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uint32_t fill_color;
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uint32_t last_item_width;
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int name_text_width;
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bool wide_enough_for_name;
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bool high_enough_for_name;
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ArdourCanvas::Container* group;
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ArdourCanvas::Rectangle* frame;
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ArdourCanvas::Rectangle* selection_frame;
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ArdourCanvas::Text* name_text;
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ArdourCanvas::Rectangle* name_highlight;
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/* with these two values, if frame_handle_start == 0 then frame_handle_end will also be 0 */
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ArdourCanvas::Rectangle* frame_handle_start; ///< `frame' (fade) handle for the start of the item, or 0
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ArdourCanvas::Rectangle* frame_handle_end; ///< `frame' (fade) handle for the end of the item, or 0
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bool frame_handle_crossing (GdkEvent*, ArdourCanvas::Rectangle*);
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double _height;
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Visibility visibility;
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std::string fill_color_name;
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bool _recregion;
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bool _automation; ///< true if this is an automation region view
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bool _dragging;
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double _width;
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void manage_name_text ();
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private:
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void parameter_changed (std::string);
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void manage_name_highlight ();
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}; /* class TimeAxisViewItem */
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