--- /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