336 lines
9.7 KiB
C++
336 lines
9.7 KiB
C++
/*
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* Author: Harry van Haaren 2013
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* harryhaaren@gmail.com
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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#ifndef AVTK_SIDECHAIN_GAIN_H
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#define AVTK_SIDECHAIN_GAIN_H
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#include <FL/Fl_Widget.H>
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#include <FL/Fl_Slider.H>
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#include <valarray>
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#include <string>
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namespace Avtk
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{
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class SidechainGain : public Fl_Slider
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{
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public:
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SidechainGain(int _x, int _y, int _w, int _h, const char *_label = 0):
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Fl_Slider(_x, _y, _w, _h, _label)
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{
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x = _x;
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y = _y;
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w = _w;
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h = _h;
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label = _label;
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mouseClickedX = 0;
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mouseClickedY = 0;
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mouseClicked = false;
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active = true;
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highlight = false;
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_threshold = 1.0;
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_target = 1.f;
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_reduce = 1.f;
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_release = 0.5;
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_sidechainAmp = 0;
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}
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void threshold(float t) {_threshold = t; redraw();}
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void reduce (float r) {_reduce = r; redraw();}
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void release (float r) {_release = r; redraw();}
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/// sets the sidechain amplitude
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void sidechain(float s) {_sidechainAmp = s; redraw();}
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bool active;
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bool highlight;
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int x, y, w, h;
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const char* label;
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int mouseClickedX;
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int mouseClickedY;
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bool mouseClicked;
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bool mouseRightClicked;
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float _threshold;
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float _target;
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float _reduce;
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float _release;
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float _sidechainAmp;
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void set_active(bool a)
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{
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active = a;
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redraw();
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}
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void draw()
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{
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if (damage() & FL_DAMAGE_ALL)
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{
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cairo_t *cr = Fl::cairo_cc();
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cairo_save( cr );
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cairo_set_line_width(cr, 1.5);
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// fill background
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cairo_rectangle( cr, x, y, w, h);
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cairo_set_source_rgb( cr, 28 / 255.f, 28 / 255.f , 28 / 255.f );
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cairo_fill_preserve( cr );
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cairo_clip( cr );
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// set up dashed lines, 1 px off, 1 px on
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double dashes[1];
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dashes[0] = 2.0;
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cairo_set_dash ( cr, dashes, 1, 0.0);
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cairo_set_line_width( cr, 1.0);
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// loop over each 2nd line, drawing dots
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cairo_set_line_width(cr, 1.0);
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cairo_set_source_rgb(cr, 0.4,0.4,0.4);
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for ( int i = 0; i < 4; i++ )
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{
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cairo_move_to( cr, x + ((w / 4.f)*i), y );
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cairo_line_to( cr, x + ((w / 4.f)*i), y + h );
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}
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for ( int i = 0; i < 4; i++ )
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{
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cairo_move_to( cr, x , y + ((h / 4.f)*i) );
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cairo_line_to( cr, x + w, y + ((h / 4.f)*i) );
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}
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cairo_set_source_rgba( cr, 66 / 255.f, 66 / 255.f , 66 / 255.f , 0.5 );
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cairo_stroke(cr);
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cairo_set_dash ( cr, dashes, 0, 0.0);
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// draw threshold / ducked line
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cairo_move_to( cr, x + w * 0.750 - (w * 0.5 * (1-_threshold)), y );
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cairo_line_to( cr, x + w * 0.750 - (w * 0.5 * (1-_threshold)) + _sidechainAmp* _reduce*( w * 0.5 ), y + h / 2 );
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cairo_line_to( cr, x + w * 0.750 - (w * 0.5 * (1-_threshold)), y + h );
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cairo_line_to( cr, x + w , y + h );
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cairo_line_to( cr, x + w , y );
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cairo_close_path( cr );
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cairo_set_source_rgba( cr, 0 / 255.f, 153 / 255.f , 255 / 255.f , 0.21 );
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cairo_fill_preserve( cr );
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cairo_set_source_rgba( cr, 0 / 255.f, 153 / 255.f , 255 / 255.f , 1 );
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cairo_stroke( cr );
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// _sidechainAmp => arrow
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cairo_move_to( cr, x + w * 0.00 * _sidechainAmp, y + h * 0.4 - (h*0.1*_sidechainAmp) );
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cairo_line_to( cr, x + w * 0.65 * _sidechainAmp, y + h * 0.4 );
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cairo_line_to( cr, x + w * 0.1 + w * 0.65 * _sidechainAmp, y + h * 0.5 );
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cairo_line_to( cr, x + w * 0.65 * _sidechainAmp, y + h * 0.6 );
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cairo_line_to( cr, x + w * 0.00 * _sidechainAmp, y + h * 0.6 + (h*0.1*_sidechainAmp) );
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cairo_close_path( cr );
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cairo_set_source_rgba( cr, 1.0, 0.48, 0.f , 0.21 );
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cairo_fill_preserve( cr );
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cairo_set_source_rgba( cr, 1.0, 0.48, 0.f , 1 );
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cairo_stroke( cr );
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// _release horizontal line
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cairo_move_to( cr, x , y + h * 0.25 + h/2 * _release );
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cairo_line_to( cr, x + w, y + h * 0.25 + h/2 * _release );
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cairo_set_source_rgba( cr, 1.0, 0.0, 0.f , 1 );
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cairo_stroke( cr );
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/*
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float makeupGainPx = makeupGain * h * 0.5;
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float xDist = 0.1 * w;
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float yDist = 0.1 * h;
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float xThresh = x + (w * 0.25) + (w*0.5) * threshVal;
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float yThresh = y + (h * 0.25) + (h*0.5)*(1-threshVal);
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float startx = xThresh - xDist;
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float starty = yThresh + yDist;
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float cp1x = xThresh;
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float cp1y = yThresh - makeupGainPx;
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float cp2x = xThresh;
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float cp2y = yThresh - makeupGainPx;
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float endx = xThresh + (xDist*1.2);
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float endy = yThresh - (yDist*1.2)*(1-ratioVal) - makeupGainPx;
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// normal line (greyed)
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cairo_move_to( cr, x , y + h );
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cairo_line_to( cr, x + w, y );
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cairo_set_source_rgba( cr, 66 / 255.f, 66 / 255.f , 66 / 255.f , 0.5 );
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cairo_set_line_width(cr, 1.4);
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cairo_stroke( cr );
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cairo_move_to( cr, x , y + h - makeupGainPx );
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cairo_line_to( cr, startx, starty - makeupGainPx );
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// draw curve
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cairo_curve_to( cr, cp1x, cp1y, cp2x, cp2y, endx, endy );
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cairo_line_to( cr, x + w, y + (h/4)*ratioVal + (h)*(1-threshVal)*(0.5*ratioVal) - makeupGainPx );
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cairo_line_to( cr, x + w, y + h );
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cairo_line_to( cr, x , y + h );
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cairo_close_path(cr);
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cairo_set_source_rgba( cr, 0 / 255.f, 153 / 255.f , 255 / 255.f , 0.21 );
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cairo_fill_preserve(cr);
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cairo_set_source_rgba( cr, 0 / 255.f, 153 / 255.f , 255 / 255.f , 1 );
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cairo_set_line_width(cr, 1.5);
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cairo_set_line_join( cr, CAIRO_LINE_JOIN_ROUND);
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cairo_set_line_cap ( cr, CAIRO_LINE_CAP_ROUND);
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cairo_stroke( cr );
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*/
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// stroke outline
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cairo_rectangle(cr, x, y, w, h);
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cairo_set_source_rgba( cr, 126 / 255.f, 126 / 255.f , 126 / 255.f , 0.8 );
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cairo_set_line_width(cr, 1.9);
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cairo_stroke( cr );
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if ( !active )
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{
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// big grey X
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cairo_set_line_width(cr, 20.0);
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cairo_set_source_rgba(cr, 0.4,0.4,0.4, 0.7);
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cairo_move_to( cr, x + (3 * w / 4.f), y + ( h / 4.f ) );
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cairo_line_to( cr, x + (w / 4.f), y + ( 3 *h / 4.f ) );
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cairo_move_to( cr, x + (w / 4.f), y + ( h / 4.f ) );
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cairo_line_to( cr, x + (3 * w / 4.f), y + ( 3 *h / 4.f ) );
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cairo_set_line_cap ( cr, CAIRO_LINE_CAP_BUTT);
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cairo_stroke( cr );
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}
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cairo_restore( cr );
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}
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}
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void resize(int X, int Y, int W, int H)
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{
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Fl_Widget::resize(X,Y,W,H);
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x = X;
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y = Y;
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w = W;
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h = H;
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redraw();
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}
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int handle(int event)
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{
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/*
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switch(event)
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{
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case FL_PUSH:
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highlight = 0;
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mouseRightClicked = false;
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if ( Fl::event_button() == FL_RIGHT_MOUSE )
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{
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active = !active;
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redraw();
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mouseRightClicked = true;
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do_callback();
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}
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return 1;
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case FL_DRAG:
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{
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if ( Fl::event_state(FL_BUTTON1) )
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{
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if ( mouseClicked == false ) // catch the "click" event
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{
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mouseClickedX = Fl::event_x();
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mouseClickedY = Fl::event_y();
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mouseClicked = true;
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}
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float deltaX = mouseClickedX - Fl::event_x();
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float deltaY = mouseClickedY - Fl::event_y();
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float valX = value();
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valX -= deltaX / 100.f;
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float valY = makeupGain;
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valY += deltaY / 100.f;
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if ( valX > 1.0 ) valX = 1.0;
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if ( valX < 0.0 ) valX = 0.0;
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if ( valY > 1.0 ) valY = 1.0;
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if ( valY < 0.0 ) valY = 0.0;
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//handle_drag( value + deltaY );
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set_value( valX );
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makeupGain = valY;
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mouseClickedX = Fl::event_x();
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mouseClickedY = Fl::event_y();
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redraw();
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do_callback();
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}
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}
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return 1;
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case FL_RELEASE:
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mouseRightClicked = false;
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if (highlight) {
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highlight = 0;
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redraw();
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do_callback();
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}
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mouseClicked = false;
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return 1;
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case FL_SHORTCUT:
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if ( test_shortcut() )
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{
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do_callback();
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return 1;
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}
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return 0;
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default:
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return Fl_Widget::handle(event);
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}
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*/
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return 0;
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}
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private:
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};
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} // Avtk
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#endif // AVTK_SIDECHAIN_GAIN_H
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