+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file widget_sound.cpp
-** \brief Widget Sound Implementation File
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**
-** This package 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 package 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.
-** \endlegal
-*/
-/* ========================================================================= */
-
-/* === H E A D E R S ======================================================= */
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <gtkmm/adjustment.h>
-
-#include <synfig/general.h>
-#include <ETL/clock>
-
-#include "widget_sound.h"
-#include "audiocontainer.h"
-
-#include "general.h"
-
-#endif
-
-/* === U S I N G =========================================================== */
-
-using namespace std;
-using namespace etl;
-//using namespace synfig;
-
-using studio::AudioProfile;
-
-/* === M A C R O S ========================================================= */
-
-/* === G L O B A L S ======================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-/* === E N T R Y P O I N T ================================================= */
-
-studio::Widget_Sound::Widget_Sound()
-{
-}
-
-studio::Widget_Sound::~Widget_Sound()
-{
-}
-
-void studio::Widget_Sound::set_position(double t)
-{
- //synfig::info("Setting position to %.2lf s", t);
- if(adj_timescale && t != adj_timescale->get_value())
- {
- float upper = adj_timescale->get_upper();
- float lower = adj_timescale->get_lower();
- float framesize = upper - lower;
-
- if(t < lower)
- {
- lower -= ceil((lower-t)/framesize)*framesize;
- upper = lower + framesize;
- adj_timescale->set_lower(lower); adj_timescale->set_upper(upper);
- adj_timescale->set_value(t);
- adj_timescale->changed(); adj_timescale->value_changed();
- }else
- if(t > upper)
- {
- lower += ceil((t-upper)/framesize)*framesize;
- upper = lower + framesize;
- adj_timescale->set_lower(lower); adj_timescale->set_upper(upper);
- adj_timescale->set_value(t);
- adj_timescale->changed(); adj_timescale->value_changed();
- }else
- {
- adj_timescale->set_value(t);
- adj_timescale->value_changed();
- }
- }
-}
-
-double studio::Widget_Sound::get_position() const
-{
- if(adj_timescale)
- {
- return adj_timescale->get_value();
- }
- return 0;
-}
-
-bool studio::Widget_Sound::set_profile(etl::handle<AudioProfile> p)
-{
- clear();
-
- //set the profile
- audioprof = p;
-
- if(!audioprof)
- {
- clear();
- return false;
- }
-
- return true;
-}
-
-etl::handle<AudioProfile> studio::Widget_Sound::get_profile() const
-{
- return audioprof;
-}
-
-void studio::Widget_Sound::clear()
-{
- audioprof.detach();
-}
-
-void studio::Widget_Sound::draw()
-{
- on_expose_event();
-}
-
-bool studio::Widget_Sound::on_expose_event(GdkEventExpose */*heh*/)
-{
- if(!get_window()) return false;
-
- //clear the background to dark grey
- Glib::RefPtr<Gdk::GC> gc = Gdk::GC::create(get_window());
-
- if(!gc) return false;
-
- {
- Gdk::Rectangle r(0,0,get_width(),get_height());
- get_window()->begin_paint_rect(r);
- }
- Gdk::Color c("#3f3f3f");
- gc->set_rgb_fg_color(c);
- gc->set_background(c);
-
- int w = get_width();
- int baseline = get_height()/2;
- get_window()->draw_rectangle(gc,true,0,0,w,get_height());
-
- //set up the color to be blue
- c.set_rgb_p(0,0.5,1);
- gc->set_rgb_fg_color(c);
-
- //draw the base line
- get_window()->draw_line(gc,0,baseline,w,baseline);
-
- //redraw all the samples from begin to end, but only if we have samples to draw (or there is no space to draw)
-
- //synfig::warning("Ok rendered everything, now must render actual sound wave");
- if(!audioprof || !adj_timescale || !w)
- {
- get_window()->end_paint();
- return true;
- }
-
- //draw you fool!
- float framesize = adj_timescale->get_upper() - adj_timescale->get_lower();
- if(framesize)
- {
- float delta=0,cum=0;
-
- //position in sample space
- int begin=0,end=0;
- int cur=0,maxs=0,mins=0;
-
- int i=0; //pixel counter
-
- //etl::clock check; check.reset();
-
- float position = adj_timescale->get_value();
- float samplerate = audioprof->get_samplerate();
- int posi = 0;
- //enforce position inside of frame size
- {
- float offset = audioprof->get_offset();
-
- //clamp begin and end to framesize
- float beginf = adj_timescale->get_lower();
- float endf = adj_timescale->get_upper();
-
- posi = round_to_int((position-beginf)*w/framesize);
- //posi = (int)((position-beginf)*w/framesize);
-
- //calculate in sample space from seconds
- begin = round_to_int((beginf - offset)*samplerate);
- end = round_to_int((endf - offset)*samplerate);
- //begin = (int)((beginf - offset)*samplerate);
- //end = (int)((endf - offset)*samplerate);
- }
-
- delta = (end - begin)/(float)w; //samples per pixel
-
- /*synfig::warning("Rendering a framesize of %f secs from [%d,%d) samples to %d samples, took %f sec",
- framesize, begin, end, w, check());*/
-
- cur = begin;
- i = 0; cum = 0;
- for(int i=0;i<w;++i)
- {
- //get the maximum of the collected samples
- maxs = 0;
- mins = 0;
- for(;cum < delta; ++cum, ++cur)
- {
- maxs = std::max(maxs,(int)(*audioprof)[cur]);
- mins = std::min(mins,(int)(*audioprof)[cur]);
- }
- cum -= delta;
-
- //draw spike if not needed be
- if(maxs||mins)
- {
- int top = maxs * baseline / 64;
- int bot = mins * baseline / 64;
-
- get_window()->draw_line(gc,i,baseline+bot,i,baseline+top);
- }
- }
-
- //synfig::warning("Drawing audio line");
- c.set_rgb_p(1,0,0);
- gc->set_rgb_fg_color(c);
- get_window()->draw_line(gc,posi,0,posi,get_height());
- }
- get_window()->end_paint();
-
- return true;
-}
-
-//--- Handle the single clicking and dragging for scrubbing
-
-bool studio::Widget_Sound::on_motion_notify_event(GdkEventMotion* event)
-{
- Gdk::ModifierType mod = Gdk::ModifierType(event->state);
-
- //if we are scrubbing
- if(mod & Gdk::BUTTON1_MASK)
- {
- //Can't do this if we don't have a time frame (heheh...)
- if(!adj_timescale) return false;
-
- double beg = adj_timescale->get_lower(), end = adj_timescale->get_upper();
-
- //find event position in time
- double t = beg + event->x * (end-beg) / get_width();
-
- //signal that we are scrubbing to this new value...
- signal_scrub()(t);
-
-
- // We should be able to just call
- // Widget_Timeslider::on_motion_notify_event(),
- // but that seems to cause the program to halt
- // for some reason. So for now, let's do the job ourselves
- //adj_timescale->set_value(t);
- //adj_timescale->changed();
- //return true;
- }
-
- return Widget_Timeslider::on_motion_notify_event(event);
-}
-
-bool studio::Widget_Sound::on_button_press_event(GdkEventButton *event)
-{
- //Assume button PRESS
-
- //if we are starting... using left click
- if(event->button == 1)
- {
- if(!adj_timescale) return false;
-
- double beg = adj_timescale->get_lower(), end = adj_timescale->get_upper();
-
- //find event position in time
- double t = beg + event->x * (end-beg) / get_width();
-
- //signal the attached scrubbing devices...
- signal_start_scrubbing()(t);
-
- return true;
- }
-
- return Widget_Timeslider::on_button_press_event(event);
-}
-
-bool studio::Widget_Sound::on_button_release_event(GdkEventButton *event)
-{
- //Assume button RELEASE
-
- //if we are ending... using left click
- if(event->button == 1)
- {
- //signal the scrubbing device... to stop
- signal_stop_scrubbing()();
-
- return true;
- }
-
- return Widget_Timeslider::on_button_release_event(event);
-}
projects / synfig.git / blobdiff