13
0
livetrax/gtk2_ardour/time_axis_view_item.h
Robin Gareus 4050ca5633
Update GPL boilerplate and (C)
Copyright-holder and year information is extracted from git log.

git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.
2019-08-03 15:53:15 +02:00

256 lines
7.8 KiB
C++

/*
* Copyright (C) 2005-2009 Nick Mainsbridge <mainsbridge@gmail.com>
* Copyright (C) 2005-2019 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2017-2019 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __gtk_ardour_time_axis_view_item_h__
#define __gtk_ardour_time_axis_view_item_h__
#include <string>
#include <gdk/gdk.h>
#include <gdkmm/color.h>
#include <pangomm/fontdescription.h>
#include "pbd/signals.h"
#include "selectable.h"
class TimeAxisView;
namespace ArdourCanvas {
class Pixbuf;
class Rectangle;
class Item;
class Container;
class Text;
}
using ARDOUR::samplepos_t;
using ARDOUR::samplecnt_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(samplepos_t, void*, double* delta = 0);
samplepos_t get_position() const;
virtual bool set_duration(samplecnt_t, void*);
samplecnt_t get_duration() const;
virtual void set_max_duration(samplecnt_t, void*);
samplecnt_t get_max_duration() const;
virtual void set_min_duration(samplecnt_t, void*);
samplecnt_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);
virtual double height() const { return _height; }
void set_y (double);
void set_color (uint32_t);
void set_name_text_color ();
virtual uint32_t get_fill_color () const;
ArdourCanvas::Item* get_canvas_frame();
ArdourCanvas::Item* get_canvas_group();
ArdourCanvas::Item* get_name_highlight();
virtual void set_samples_per_pixel (double);
double get_samples_per_pixel () const;
virtual void drag_start();
virtual void drag_end();
bool dragging() const { return _dragging; }
virtual void raise () { return; }
virtual void raise_to_top () { return; }
virtual void lower () { return; }
virtual void lower_to_bottom () { return; }
/** @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_TOP;
static const double GRAB_HANDLE_WIDTH;
/* 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<void,std::string,void*> ItemRemoved;
/** Emitted when the name of this item is changed */
sigc::signal<void,std::string,std::string,void*> NameChanged;
/** Emiited when the position of this item changes */
sigc::signal<void,samplepos_t,void*> PositionChanged;
/** Emitted when the position lock of this item is changed */
sigc::signal<void,bool,void*> PositionLockChanged;
/** Emitted when the duration of this item changes */
sigc::signal<void,samplecnt_t,void*> DurationChanged;
/** Emitted when the maximum item duration is changed */
sigc::signal<void,samplecnt_t,void*> MaxDurationChanged;
/** Emitted when the mionimum item duration is changed */
sigc::signal<void,samplecnt_t,void*> MinDurationChanged;
enum Visibility {
ShowFrame = 0x1,
ShowNameHighlight = 0x2,
ShowNameText = 0x4,
ShowHandles = 0x8,
HideFrameLeft = 0x10,
HideFrameRight = 0x20,
HideFrameTB = 0x40,
FullWidthNameHighlight = 0x80
};
virtual void update_visibility () {}
protected:
TimeAxisViewItem (const std::string &, ArdourCanvas::Item&, TimeAxisView&, double, uint32_t fill_color,
samplepos_t, samplecnt_t, bool recording = false, bool automation = false, Visibility v = Visibility (0));
TimeAxisViewItem (const TimeAxisViewItem&);
void init (ArdourCanvas::Item*, double, uint32_t, samplepos_t, samplepos_t, Visibility, bool, bool);
virtual bool canvas_group_event (GdkEvent*);
virtual void set_colors();
virtual void set_frame_color();
virtual void set_frame_gradient ();
void set_trim_handle_colors();
virtual void reset_width_dependent_items (double);
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 */
samplepos_t sample_position;
/** duration of this item upon the timeline */
samplecnt_t item_duration;
/** maximum duration that this item can have */
samplecnt_t max_item_duration;
/** minimum duration that this item can have */
samplecnt_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 pixel */
double samples_per_pixel;
/** 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;
uint32_t fill_color;
uint32_t last_item_width;
int name_text_width;
bool wide_enough_for_name;
bool high_enough_for_name;
ArdourCanvas::Container* group;
ArdourCanvas::Rectangle* frame;
ArdourCanvas::Rectangle* selection_frame;
ArdourCanvas::Text* name_text;
ArdourCanvas::Rectangle* name_highlight;
/* with these two values, if frame_handle_start == 0 then frame_handle_end will also be 0 */
ArdourCanvas::Rectangle* frame_handle_start; ///< `frame' (fade) handle for the start of the item, or 0
ArdourCanvas::Rectangle* frame_handle_end; ///< `frame' (fade) handle for the end of the item, or 0
bool frame_handle_crossing (GdkEvent*, ArdourCanvas::Rectangle*);
double _height;
Visibility visibility;
std::string fill_color_name;
bool _recregion;
bool _automation; ///< true if this is an automation region view
bool _dragging;
double _width;
void manage_name_text ();
private:
void parameter_changed (std::string);
void manage_name_highlight ();
}; /* class TimeAxisViewItem */
#endif /* __gtk_ardour_time_axis_view_item_h__ */