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/*
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* HDSPMixer
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*
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* Copyright (C) 2003 Thomas Charbonnel (thomas@undata.org)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#pragma implementation
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#include "HDSPMixerPan.h"
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HDSPMixerPan::HDSPMixerPan(int x, int y, int id, int src):Fl_Widget(x, y, 30, 13)
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{
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source = src;
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index = id;
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basew = (HDSPMixerWindow *)window();
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dest = x_orig = shift_orig = lastpos = lastx = drag = 0;
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for (int i = 0; i < HDSP_MAX_DEST; i++) {
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pos[i] = 0;
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}
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}
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void HDSPMixerPan::draw()
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{
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fl_draw_pixmap(Slider2_xpm, x()+(int)(pos[dest]/CF), y());
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}
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int HDSPMixerPan::handle(int e)
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{
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int button3 = Fl::event_button3();
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int shift = Fl::event_shift();
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int ctrl = Fl::event_ctrl();
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int xpos = Fl::event_x()-x();
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switch (e) {
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case FL_PUSH:
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if (xpos > 0 && xpos < 30) {
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if (ctrl) {
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pos[dest] = 14*CF;
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} else {
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pos[dest] = (xpos-1)*CF;
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}
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if (lastx != (int)(pos[dest]/CF)) {
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redraw();
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lastx = (int)(pos[dest]/CF);
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}
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if (lastpos != pos[dest]) {
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basew->setMixer(index, source, dest);
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sendText();
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lastpos = pos[dest];
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}
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if (button3) relative->set(28*CF-pos[dest]);
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shift_orig = pos[dest];
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x_orig = xpos;
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basew->checkState();
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}
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return 1;
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case FL_DRAG:
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if (ctrl) {
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pos[dest] = 14*CF;
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shift_orig = pos[dest];
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x_orig = xpos;
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} else if ((xpos > 0 && xpos < 30) || drag) {
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drag = 1;
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if (shift) {
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pos[dest] = ((xpos-1)-x_orig)+shift_orig;
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if (pos[dest] < 0) pos[dest] = 0;
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if (pos[dest] > 28*CF) pos[dest] = 28*CF;
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} else {
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if (xpos < 1) {
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pos[dest] = 0;
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} else if (xpos > 29) {
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pos[dest] = 28*CF;
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} else {
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pos[dest] = (xpos-1)*CF;
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}
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shift_orig = pos[dest];
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x_orig = xpos;
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}
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}
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if (lastpos != pos[dest]) {
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basew->setMixer(index, source, dest);
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sendText();
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lastpos = pos[dest];
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}
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if (lastx != (int)(pos[dest]/CF)) {
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redraw();
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lastx = (int)(pos[dest]/CF);
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}
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if (button3) relative->set(28*CF-pos[dest]);
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basew->checkState();
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return 1;
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case FL_RELEASE:
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drag = 0;
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return 1;
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default :
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return Fl_Widget::handle(e);
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}
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}
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void HDSPMixerPan::panToText(char *s)
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{
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double x;
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x = (double)pos[dest] / (double)(28*CF);
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if (pos[dest] < 28*CF/2) {
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x = 1.0 - x;
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snprintf(s, 10, "L %.2f", x);
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} else if (pos[dest] > 28*CF/2) {
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snprintf(s, 10, "R %.2f", x);
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} else {
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snprintf(s, 10, "<C>");
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}
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}
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void HDSPMixerPan::sendText() {
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char buf[10];
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panToText(buf);
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((HDSPMixerIOMixer *)parent())->gain->setText(buf);
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}
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void HDSPMixerPan::set(int p)
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{
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if (pos[dest] != p) {
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pos[dest] = lastpos = p;
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basew->setMixer(index, source, dest);
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sendText();
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}
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if (lastx != (int)(pos[dest]/CF)) {
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lastx = (int)(pos[dest]/CF);
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redraw();
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}
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}
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