201 lines
4.6 KiB
C++
201 lines
4.6 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_RADIAL_STATUS_H
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#define AVTK_RADIAL_STATUS_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 RadialStatus : public Fl_Slider
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{
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public:
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RadialStatus(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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previousAngle = -1;
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_r = 1.0;
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_g = 0.48;
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_b = 0.0;
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_bgr = 0.11;
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_bgg = 0.11;
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_bgb = 0.11;
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highlight = false;
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mouseOver = false;
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}
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bool _recording;
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void recording(bool r){_recording = r; redraw();}
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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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int previousAngle;
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float _r, _g, _b; // foreground colour
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float _bgr, _bgg, _bgb; // background colour
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float _outr, _outg, _outb; // outline colour
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void setColor(float r, float g, float b)
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{
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_r = r;
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_g = g;
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_b = b;
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}
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void setBgColor(float r, float g, float b)
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{
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_bgr = r;
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_bgg = g;
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_bgb = b;
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}
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void draw()
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{
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// check that its a new "segment" to redraw
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int newAngle = (value() * 16);
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if (damage() & FL_DAMAGE_ALL &&
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previousAngle != newAngle )
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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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int xc = (w) / 2.f;
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int yc = (h) / 2.f;
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float angle = newAngle / 16.f;
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cairo_set_line_cap ( cr, CAIRO_LINE_CAP_ROUND );
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//cairo_move_to( cr, x + xc, y + yc );
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cairo_arc( cr, x + xc, y + yc, xc - 10, -(3.1415/2), angle * 6.28 - (3.1415/2) );
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cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5 );
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cairo_set_line_width(cr, 12);
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cairo_stroke_preserve(cr);
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cairo_set_source_rgba (cr, 1.0, 0.48, 0.0, 1 );
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cairo_set_line_width(cr, 8.2);
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cairo_stroke(cr);
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// recording?
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if ( _recording )
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{
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cairo_set_source_rgba(cr,1.0,0.0,0.0, 0.8);
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cairo_arc(cr, x + xc, y + yc, 30, 0, 2 * 3.1415);
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cairo_fill_preserve(cr);
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cairo_set_source_rgba(cr,0.0,0.0,0.0, 0.8);
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cairo_set_line_width(cr, 2.2);
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cairo_stroke(cr);
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// color of internal dot depending on rec state
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cairo_set_source_rgba(cr,0.0,0.0,0.0, 1);
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}
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else
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{
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cairo_set_source_rgba(cr,0.3,0.3,0.3, 1);
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}
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// inside circle
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cairo_arc(cr, x + xc, y + yc, 10, 0, 2 * 3.1415);
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cairo_set_line_width(cr, 4.2);
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cairo_fill(cr);
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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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redraw();
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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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do_callback();
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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_RADIAL_STATUS_H
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