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added hdspmixer by Thomas Charbonnel

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This commit is contained in:
Takashi Iwai 2003-07-28 11:32:32 +00:00
parent a459b42371
commit 0fb00d0bdc
102 changed files with 14102 additions and 1 deletions
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181
hdspmixer/src/HDSPMixerFader.cxx Normal file
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/*
* HDSPMixer
*
* Copyright (C) 2003 Thomas Charbonnel (thomas@undata.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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#pragma implementation
#include "HDSPMixerFader.h"
HDSPMixerFader::HDSPMixerFader(int x, int y, double r, int id, int src):Fl_Widget(x, y, 13, 153)
{
index = id;
source = src;
ndb = (int)(CF*(double)(log(0.5*(exp(3.0)-1)+1)*(double)(FADER_HEIGHT)/3.0));
non_submix_dest = 0;
dest = 0;
ref = r;
basew = (HDSPMixerWindow *)window();
anchor = lastpos = lasty = drag = shift_orig = y_orig = 0;
for (int i = 0; i < 14; i++) {
pos[i] = 0;
}
}
void HDSPMixerFader::draw()
{
fl_draw_pixmap(Slider1_xpm, x(), y()+139-(int)(pos[dest]/CF));
}
int HDSPMixerFader::handle(int e)
{
int button3 = Fl::event_button3();
int shift = Fl::event_shift();
int ctrl = Fl::event_ctrl();
int xpos = Fl::event_x()-x();
int ypos = Fl::event_y()-y();
switch (e) {
case FL_PUSH:
if (onSlider(ypos)) {
anchor = 144-ypos-(int)(pos[dest]/CF);
if (button3) relative->set(pos[dest]);
return 1;
}
anchor = 0;
if (ctrl) {
pos[dest] = ndb;
} else if (ypos < 7) {
pos[dest] = 137*CF;
} else if (ypos > 6 && ypos < 146) {
pos[dest] = (144-ypos)*CF;
} else if (ypos > 145) {
pos[dest] = 0;
}
if (lastpos != pos[dest]) {
basew->setMixer(index, source, dest);
sendGain();
lastpos = pos[dest];
}
if (lasty != (int)(pos[dest]/CF)) {
redraw();
lasty = (int)(pos[dest]/CF);
}
if (button3) relative->set(pos[dest]);
shift_orig = pos[dest];
y_orig = ypos;
basew->checkState();
return 1;
case FL_DRAG:
ypos += anchor;
if (ctrl) {
pos[dest] = ndb;
shift_orig = pos[dest];
y_orig = ypos;
} else if ((ypos > 6 && ypos < 146) || drag) {
drag = 1;
if (shift) {
pos[dest] = (y_orig-ypos)+shift_orig;
if (pos[dest] < 0) pos[dest] = 0;
if (pos[dest] > 137*CF) pos[dest] = 137*CF;
} else {
if (ypos < 7) {
pos[dest] = 137*CF;
} else if (ypos > 144) {
pos[dest] = 0;
} else {
pos[dest] = (144-ypos)*CF;
}
shift_orig = pos[dest];
y_orig = ypos;
}
}
if (lastpos != pos[dest]) {
basew->setMixer(index, source, dest);
sendGain();
lastpos = pos[dest];
}
if (lasty != (int)(pos[dest]/CF)) {
redraw();
lasty = (int)(pos[dest]/CF);
}
if (button3) relative->set(pos[dest]);
basew->checkState();
return 1;
case FL_RELEASE:
drag = 0;
anchor = 0;
return 1;
default :
return Fl_Widget::handle(e);
}
}
int HDSPMixerFader::onSlider(int ypos)
{
if (ypos > (139-(int)(pos[dest]/CF)) && ypos < (151-(int)(pos[dest]/CF))) {
return 1;
}
return 0;
}
void HDSPMixerFader::set(int p)
{
if (p != pos[dest]) {
pos[dest] = lastpos = p;
basew->setMixer(index, source, dest);
sendGain();
}
if (lasty != (int)(pos[dest]/CF)) {
lasty = (int)(pos[dest]/CF);
redraw();
}
}
int HDSPMixerFader::posToInt(int p) {
double x, y;
if (p == ndb) return 32768;
if (p == 137*CF) return 65535;
if (p == 0) return 0;
x = ((double)(p)) / (double)(137*CF);
y = 65535.0 * (exp(3.0 * x) - 1.0) / (exp(3.0) - 1.0);
if (y > 65535.0) y = 65535.0;
if (y < 0.0) y = 0.0;
return (int)y;
}
void HDSPMixerFader::posToLog(char *s)
{
double db, fpos;
if (posToInt(pos[dest]) == 0) {
snprintf(s, 10, "-oo");
return;
}
fpos = (double)posToInt(pos[dest]) / ref;
db = 20.0 * log10(fpos);
snprintf(s, 10, "%.1f", db);
}
void HDSPMixerFader::sendGain()
{
char buf[10];
posToLog(buf);
gain->setText(buf);
}