223 lines
5.9 KiB
C++
223 lines
5.9 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_REVERB_H
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#define AVTK_REVERB_H
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#include <FL/Fl_Slider.H>
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namespace Avtk
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{
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class Reverb : public Fl_Slider
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{
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public:
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Reverb(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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amp = 0.5;
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s = 0.5;
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damp= 0.5;
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active = false;
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label = _label;
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highlight = false;
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mouseOver = false;
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}
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void size(float v) { s = v; redraw(); }
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void wet(float v) { amp = v; redraw(); }
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void damping(float v){damp = v; redraw();}
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float size(){return s;}
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float wet (){return amp;}
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float damping(){return damp;}
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bool getActive(){return active;}
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void setActive(bool a){active = a; redraw();}
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float s;
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float amp;
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float damp;
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bool active;
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bool mouseOver;
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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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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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// graph
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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(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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// 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 "damping" control
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cairo_move_to( cr, x+w*0.1 , y + h*0.85 - (h*0.7*amp));
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cairo_line_to( cr, x+w*0.1 + (w-20)*damp, y + h*0.85 - (h*0.7*amp));
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cairo_set_source_rgba(cr, 1.0, 0.48, 0, 1);
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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_set_line_width(cr, 1.9);
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cairo_stroke( cr );
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// draw reverb triangle
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cairo_move_to( cr, x , y + h*0.99 );
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cairo_line_to( cr, x + w*0.1, y + h*0.85 - (h*0.7*amp));
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cairo_line_to( cr, x + w*0.3+w*0.7*s, y + (h*0.99));
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// stroke
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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, 1.2);
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cairo_stroke( cr );
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// stroke rim
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cairo_rectangle(cr, x, y, w, h);
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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_source_rgba( cr, 126 / 255.f, 126 / 255.f , 126 / 255.f , 0.8 );
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cairo_set_line_width(cr, 0.9);
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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, 12.0);
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cairo_set_source_rgba(cr, 0.0,0.0,0.0, 1.0);
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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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draw_label();
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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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switch(event) {
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case FL_PUSH:
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highlight = 1;
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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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do_callback();
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}
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return 1;
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case FL_DRAG: {
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int t = Fl::event_inside(this);
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if (t != highlight) {
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highlight = t;
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redraw();
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}
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}
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return 1;
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case FL_ENTER:
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mouseOver = true;
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redraw();
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return 1;
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case FL_LEAVE:
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mouseOver = false;
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redraw();
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return 1;
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case FL_RELEASE:
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if (highlight) {
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highlight = 0;
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redraw();
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}
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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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};
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} // Avtk
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#endif // AVTK_ADSR_H
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