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/*
* Copyright (C) 2002 2003 2004, Magnus Hjorth
*
* This file is part of mhWaveEdit.
*
* mhWaveEdit 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.
*
* mhWaveEdit 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 mhWaveEdit; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
*/
#include <config.h>
#include <math.h>
#include <gtk/gtk.h>
#include "mainwindow.h"
#include "effectdialog.h"
#include "effectbrowser.h"
#include "volumedialog.h"
#include "float_box.h"
#include "gettext.h"
static Chunk *volume_dialog_apply_proc(Chunk *chunk, StatusBar *bar,
gpointer user_data)
{
VolumeDialog *v = VOLUME_DIALOG(user_data);
return chunk_volume_ramp(chunk,v->start_percent->val / 100.0,
v->end_percent->val / 100.0,dither_editing,bar);
}
static gboolean volume_dialog_apply(EffectDialog *ed)
{
sample_t sv,ev;
VolumeDialog *v = VOLUME_DIALOG(ed);
if (floatbox_check(v->start_percent) || floatbox_check(v->end_percent))
return TRUE;
sv = v->start_percent->val / 100.0;
ev = v->end_percent->val / 100.0;
if (sv == ev && sv == 1.0) return FALSE;
return document_apply_cb(EFFECT_BROWSER(ed->eb)->dl->selected,
volume_dialog_apply_proc,TRUE,v);
}
static sample_t peak;
static gboolean findtop_proc(void *sample, gint sample_size, Chunk *chunk)
{
sample_t d;
d = fabs(* ((sample_t *)sample));
if (d>peak) peak = d;
return (d>=1.0);
}
static void findtop(VolumeDialog *v)
{
gfloat f;
Document *d = EFFECT_BROWSER(EFFECT_DIALOG(v)->eb)->dl->selected;
peak = 0.0;
if (d == NULL) return;
document_parse(d,findtop_proc,FALSE,TRUE,_("Calculating peak volume..."));
gdk_window_raise(GTK_WIDGET(EFFECT_DIALOG(v)->eb)->window);
f = 100.0 * maximum_float_value(&(d->chunk->format)) / peak;
if (f < 100.0) f = 100.0;
floatbox_set(v->start_percent,f);
floatbox_set(v->end_percent,f);
}
static void volume_dialog_init(VolumeDialog *v)
{
GtkWidget *a,*b,*c;
a = gtk_hbox_new(FALSE,3);
gtk_box_pack_start(GTK_BOX(EFFECT_DIALOG(v)->input_area),a,FALSE,FALSE,0);
b = gtk_table_new(2,3,FALSE);
gtk_box_pack_start(GTK_BOX(a),b,FALSE,FALSE,0);
c = gtk_label_new (_("Start:"));
gtk_label_set_justify(GTK_LABEL(c),GTK_JUSTIFY_RIGHT);
gtk_table_attach(GTK_TABLE(b),c,0,1,0,1,0,0,0,0);
c = gtk_label_new (_("End:"));
gtk_label_set_justify(GTK_LABEL(c),GTK_JUSTIFY_RIGHT);
gtk_table_attach(GTK_TABLE(b),c,0,1,1,2,0,0,0,0);
c = floatbox_new(100.0);
v->start_percent = FLOATBOX(c);
gtk_table_attach(GTK_TABLE(b),c,1,2,0,1,
GTK_EXPAND|GTK_SHRINK|GTK_FILL,0,3,0);
gtk_widget_show(c);
c = floatbox_new(100.0);
v->end_percent = FLOATBOX(c);
gtk_table_attach(GTK_TABLE(b), c, 1, 2, 1, 2,
GTK_EXPAND|GTK_SHRINK|GTK_FILL,0,3,0);
gtk_widget_show(c);
c = gtk_label_new("%");
gtk_table_attach(GTK_TABLE(b),c,2,3,0,1,0,0,0,0);
c = gtk_label_new("%");
gtk_table_attach(GTK_TABLE(b),c,2,3,1,2,0,0,0,0);
b = gtk_alignment_new(0,1,0,0);
gtk_box_pack_start(GTK_BOX(a),b,FALSE,FALSE,0);
c = gtk_button_new_with_label(_("Find top volume"));
gtk_signal_connect_object(GTK_OBJECT(c),"clicked",
GTK_SIGNAL_FUNC(findtop),GTK_OBJECT(v));
gtk_container_add(GTK_CONTAINER(b),c);
gtk_widget_show_all(a);
}
static void volume_dialog_class_init(EffectDialogClass *klass)
{
klass->apply = volume_dialog_apply;
}
GtkType volume_dialog_get_type(void)
{
static GtkType id = 0;
if (!id) {
GtkTypeInfo info = {
"VolumeDialog",
sizeof(VolumeDialog),
sizeof(VolumeDialogClass),
(GtkClassInitFunc) volume_dialog_class_init,
(GtkObjectInitFunc) volume_dialog_init
};
id = gtk_type_unique(effect_dialog_get_type(),&info);
}
return id;
}
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