429 lines
12 KiB
C++
429 lines
12 KiB
C++
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/*
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Copyright (C) 2009 Paul Davis
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Copyright (C) 2015 Robin Gareus <robin@gareus.org>
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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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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <math.h> // For M_PI
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#include <algorithm>
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#include "gtkmm2ext/ardour_icon.h"
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// "canvas/types.h" Color == uint32_t
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// from libs/canvas/utils.cc
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static void ardour_canvas_set_source_rgba (cairo_t *cr, uint32_t color)
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{
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cairo_set_source_rgba ( cr,
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((color >> 24) & 0xff) / 255.0,
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((color >> 16) & 0xff) / 255.0,
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((color >> 8) & 0xff) / 255.0,
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((color >> 0) & 0xff) / 255.0
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);
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}
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bool
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Gtkmm2ext::ArdourIcon::render (cairo_t *cr,
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const enum Gtkmm2ext::ArdourIcon::Icon icon,
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const int width, const int height,
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const Gtkmm2ext::ActiveState state,
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const uint32_t fg_color)
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{
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#define VECTORICONSTROKEFILL(fillalpha) \
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cairo_set_line_width(cr, 1.5); \
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cairo_set_source_rgba (cr, 0, 0, 0, 1.0); \
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cairo_stroke_preserve(cr); \
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cairo_set_source_rgba (cr, 1, 1, 1, (fillalpha)); \
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cairo_fill(cr);
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#define VECTORICONSTROKEOUTLINE() \
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); \
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cairo_set_line_width(cr, 3.0); \
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cairo_set_source_rgba (cr, 0, 0, 0, 1.0); \
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cairo_stroke_preserve(cr); \
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ardour_canvas_set_source_rgba (cr, fg_color); \
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cairo_set_line_width(cr, 1.5); \
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cairo_stroke(cr);
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/* TODO separate these into dedicated class
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* it may also be efficient to render them only once for every size (image-surface) */
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switch (icon) {
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case Gtkmm2ext::ArdourIcon::RecTapeMode:
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{
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const double x = width * .5;
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const double y = height * .5;
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const double r = std::min(x, y) * .6;
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const double slit = .11 * M_PI;
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cairo_save(cr);
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cairo_translate(cr, x, y);
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cairo_arc (cr, 0, 0, r, 0, 2 * M_PI);
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if (state == Gtkmm2ext::ExplicitActive) {
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cairo_set_source_rgba (cr, .95, .1, .1, 1.);
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} else {
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cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
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}
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cairo_fill_preserve(cr);
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cairo_set_source_rgba (cr, .0, .0, .0, .5);
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cairo_set_line_width(cr, 1);
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cairo_stroke(cr);
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cairo_save(cr);
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cairo_set_source_rgba (cr, .15, .07, .07, 1.0);
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cairo_rotate (cr, -.5 * M_PI);
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cairo_move_to(cr, 0, 0);
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cairo_arc (cr, 0, 0, r *.85, -slit, slit);
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cairo_line_to(cr, 0, 0);
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cairo_close_path(cr);
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cairo_fill(cr);
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cairo_rotate (cr, 2. * M_PI / 3.);
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cairo_move_to(cr, 0, 0);
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cairo_arc (cr, 0, 0, r *.85, -slit, slit);
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cairo_line_to(cr, 0, 0);
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cairo_close_path(cr);
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cairo_fill(cr);
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cairo_rotate (cr, 2. * M_PI / 3.);
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cairo_move_to(cr, 0, 0);
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cairo_arc (cr, 0, 0, r *.85, -slit, slit);
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cairo_line_to(cr, 0, 0);
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cairo_close_path(cr);
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cairo_fill(cr);
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cairo_restore(cr);
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cairo_arc (cr, 0, 0, r * .3, 0, 2 * M_PI);
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if (state == Gtkmm2ext::ExplicitActive)
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cairo_set_source_rgba (cr, .95, .1, .1, 1.);
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else
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cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
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cairo_fill(cr);
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cairo_set_source_rgba (cr, .0, .0, .0, 1.0);
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cairo_arc (cr, 0, 0, r *.15, 0, 2 * M_PI); // hole in the middle
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cairo_fill(cr);
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cairo_restore(cr);
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}
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break;
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case Gtkmm2ext::ArdourIcon::RecButton:
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{
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const double x = width * .5;
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const double y = height * .5;
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const double r = std::min(x, y) * .55;
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cairo_arc (cr, x, y, r, 0, 2 * M_PI);
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if (state == Gtkmm2ext::ExplicitActive)
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cairo_set_source_rgba (cr, .95, .1, .1, 1.);
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else
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cairo_set_source_rgba (cr, .95, .44, .44, 1.); // #f46f6f
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cairo_fill_preserve(cr);
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cairo_set_source_rgba (cr, .0, .0, .0, .8);
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cairo_set_line_width(cr, 1);
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cairo_stroke(cr);
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}
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break;
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case Gtkmm2ext::ArdourIcon::CloseCross:
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{
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const double x = width * .5;
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const double y = height * .5;
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const double o = .5 + std::min(x, y) * .4;
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ardour_canvas_set_source_rgba (cr, fg_color);
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cairo_set_line_width(cr, 1);
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cairo_move_to(cr, x-o, y-o);
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cairo_line_to(cr, x+o, y+o);
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cairo_move_to(cr, x+o, y-o);
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cairo_line_to(cr, x-o, y+o);
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cairo_stroke(cr);
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}
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break;
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case Gtkmm2ext::ArdourIcon::StripWidth:
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{
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const double x0 = width * .2;
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const double x1 = width * .8;
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const double y0 = height * .25;
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const double y1= height * .75;
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const double ym= height * .5;
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// arrow
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const double xa0= height * .39;
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const double xa1= height * .61;
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const double ya0= height * .35;
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const double ya1= height * .65;
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ardour_canvas_set_source_rgba (cr, fg_color);
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cairo_set_line_width(cr, 1);
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// left + right
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cairo_move_to(cr, x0, y0);
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cairo_line_to(cr, x0, y1);
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cairo_move_to(cr, x1, y0);
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cairo_line_to(cr, x1, y1);
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// horiz center line
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cairo_move_to(cr, x0, ym);
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cairo_line_to(cr, x1, ym);
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// arrow left
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cairo_move_to(cr, x0, ym);
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cairo_line_to(cr, xa0, ya0);
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cairo_move_to(cr, x0, ym);
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cairo_line_to(cr, xa0, ya1);
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// arrow right
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cairo_move_to(cr, x1, ym);
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cairo_line_to(cr, xa1, ya0);
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cairo_move_to(cr, x1, ym);
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cairo_line_to(cr, xa1, ya1);
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cairo_stroke(cr);
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}
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break;
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case Gtkmm2ext::ArdourIcon::DinMidi:
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{
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const double x = width * .5;
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const double y = height * .5;
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const double r = std::min(x, y) * .75;
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ardour_canvas_set_source_rgba (cr, fg_color);
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cairo_set_line_width(cr, 1);
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cairo_arc (cr, x, y, r, .57 * M_PI, 2.43 * M_PI);
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cairo_stroke(cr);
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// pins equally spaced 45deg
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cairo_arc (cr, x, y * 0.5, r * .15, 0, 2 * M_PI);
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cairo_fill(cr);
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cairo_arc (cr, x * 0.5, y, r * .15, 0, 2 * M_PI);
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cairo_fill(cr);
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cairo_arc (cr, x * 1.5, y, r * .15, 0, 2 * M_PI);
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cairo_fill(cr);
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// .5 + .5 * .5 * sin(45deg), 1.5 - .5 * .5 * cos(45deg)
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cairo_arc (cr, x * 0.677, y * .677, r * .15, 0, 2 * M_PI);
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cairo_fill(cr);
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cairo_arc (cr, x * 1.323, y * .677, r * .15, 0, 2 * M_PI);
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cairo_fill(cr);
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// bottom notch
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cairo_arc (cr, x, y+r, r * .26, 1.05 * M_PI, 1.95 * M_PI);
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cairo_stroke(cr);
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}
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break;
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case Gtkmm2ext::ArdourIcon::TransportStop:
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{
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const int wh = std::min (width, height);
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cairo_rectangle (cr,
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(width - wh) * .5 + wh * .25,
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(height - wh) * .5 + wh * .25,
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wh * .5, wh * .5);
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VECTORICONSTROKEFILL(0.8);
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}
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break;
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case Gtkmm2ext::ArdourIcon::TransportPlay:
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{
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const int wh = std::min (width, height) * .5;
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const double y = height * .5;
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const double x = width - wh;
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const float tri = ceil(.577 * wh); // 1/sqrt(3)
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cairo_move_to (cr, x + wh * .5, y);
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cairo_line_to (cr, x - wh * .5, y - tri);
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cairo_line_to (cr, x - wh * .5, y + tri);
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cairo_close_path (cr);
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VECTORICONSTROKEFILL(0.8);
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}
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break;
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case Gtkmm2ext::ArdourIcon::TransportPanic:
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{
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const int wh = std::min (width, height) * .1;
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const double xc = width * .5;
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const double yh = height;
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cairo_rectangle (cr,
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xc - wh, yh *.19,
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wh * 2, yh *.41);
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VECTORICONSTROKEFILL(0.8);
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cairo_arc (cr, xc, yh *.75, wh, 0, 2 * M_PI);
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VECTORICONSTROKEFILL(0.8);
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}
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break;
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case Gtkmm2ext::ArdourIcon::TransportStart:
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case Gtkmm2ext::ArdourIcon::TransportEnd:
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case Gtkmm2ext::ArdourIcon::TransportRange:
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{
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// small play triangle
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int wh = std::min (width, height);
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const double y = height * .5;
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const double x = width - wh * .5;
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wh *= .18;
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const float tri = ceil(.577 * wh * 2); // 1/sqrt(3)
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const float ln = std::min (width, height) * .07;
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if (icon == Gtkmm2ext::ArdourIcon::TransportStart || icon == Gtkmm2ext::ArdourIcon::TransportRange) {
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cairo_rectangle (cr,
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x - wh - ln, y - tri * 1.7,
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ln * 2, tri * 3.4);
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VECTORICONSTROKEFILL(1.0);
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}
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if (icon == Gtkmm2ext::ArdourIcon::TransportEnd || icon == Gtkmm2ext::ArdourIcon::TransportRange) {
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cairo_rectangle (cr,
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x + wh - ln, y - tri * 1.7,
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ln * 2, tri * 3.4);
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VECTORICONSTROKEFILL(1.0);
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}
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if (icon == Gtkmm2ext::ArdourIcon::TransportStart) {
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cairo_move_to (cr, x - wh, y);
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cairo_line_to (cr, x + wh, y - tri);
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cairo_line_to (cr, x + wh, y + tri);
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} else {
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cairo_move_to (cr, x + wh, y);
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cairo_line_to (cr, x - wh, y - tri);
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cairo_line_to (cr, x - wh, y + tri);
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}
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cairo_close_path (cr);
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VECTORICONSTROKEFILL(1.0);
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}
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break;
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case Gtkmm2ext::ArdourIcon::TransportLoop:
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{
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const double x = width * .5;
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const double y = height * .5;
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const double r = std::min(x, y);
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cairo_arc (cr, x, y, r * .62, 0, 2 * M_PI);
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cairo_arc_negative (cr, x, y, r * .35, 2 * M_PI, 0);
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VECTORICONSTROKEFILL(1.0);
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#define ARCARROW(rad, ang) \
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x + (rad) * sin((ang) * 2.0 * M_PI), y + (rad) * cos((ang) * 2.0 * M_PI)
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cairo_move_to (cr, ARCARROW(r * .35, .72));
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cairo_line_to (cr, ARCARROW(r * .15, .72));
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cairo_line_to (cr, ARCARROW(r * .56, .60));
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cairo_line_to (cr, ARCARROW(r * .75, .72));
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cairo_line_to (cr, ARCARROW(r * .62, .72));
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cairo_set_source_rgba (cr, 0, 0, 0, 1.0);
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cairo_stroke_preserve(cr);
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cairo_close_path (cr);
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cairo_set_source_rgba (cr, 1, 1, 1, 1.0);
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cairo_fill(cr);
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||
|
|
#undef ARCARROW
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case Gtkmm2ext::ArdourIcon::TransportMetronom:
|
||
|
|
{
|
||
|
|
const double x = width * .5;
|
||
|
|
const double y = height * .5;
|
||
|
|
const double wh = std::min(x, y);
|
||
|
|
const double h = wh * .85;
|
||
|
|
const double w = wh * .55;
|
||
|
|
const double lw = w * .34;
|
||
|
|
|
||
|
|
cairo_rectangle (cr,
|
||
|
|
x - w * .7, y + h * .25,
|
||
|
|
w * 1.4, lw);
|
||
|
|
|
||
|
|
VECTORICONSTROKEFILL(1.0);
|
||
|
|
|
||
|
|
cairo_move_to (cr, x - w, y + h);
|
||
|
|
cairo_line_to (cr, x + w, y + h);
|
||
|
|
cairo_line_to (cr, x + w * .35, y - h);
|
||
|
|
cairo_line_to (cr, x - w * .35, y - h);
|
||
|
|
cairo_line_to (cr, x - w, y + h);
|
||
|
|
|
||
|
|
cairo_move_to (cr, x - w + lw, y + h -lw);
|
||
|
|
cairo_line_to (cr, x - w * .35 + lw, y - h + lw);
|
||
|
|
cairo_line_to (cr, x + w * .35 - lw, y - h + lw);
|
||
|
|
cairo_line_to (cr, x + w - lw, y + h -lw);
|
||
|
|
cairo_line_to (cr, x - w + lw, y + h -lw);
|
||
|
|
|
||
|
|
VECTORICONSTROKEFILL(1.0);
|
||
|
|
|
||
|
|
// ddx = .70 w = .75 * .5 wh = .375 wh
|
||
|
|
// ddy = .75 h - lw = .75 * .8 wh - wh .5 * .2 = .5 wh
|
||
|
|
// ang = (ddx/ddy):
|
||
|
|
// -> angle = atan (ang) = atan (375 / .5) ~= 36deg
|
||
|
|
const double dx = lw * .2; // 1 - cos(tan^-1(ang))
|
||
|
|
const double dy = lw * .4; // 1 - sin(tan^-1(ang))
|
||
|
|
cairo_move_to (cr, x - w * .3 , y + h * .25 + lw * .5);
|
||
|
|
cairo_line_to (cr, x - w + dx , y - h + lw + dy);
|
||
|
|
cairo_line_to (cr, x - w + lw , y - h + lw);
|
||
|
|
cairo_line_to (cr, x - w * .3 + lw, y + h * .25 + lw * .5);
|
||
|
|
cairo_close_path (cr);
|
||
|
|
|
||
|
|
VECTORICONSTROKEFILL(1.0);
|
||
|
|
|
||
|
|
cairo_rectangle (cr,
|
||
|
|
x - w * .7, y + h * .25,
|
||
|
|
w * 1.4, lw);
|
||
|
|
cairo_fill(cr);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case Gtkmm2ext::ArdourIcon::NudgeLeft:
|
||
|
|
{
|
||
|
|
const double x = width * .5;
|
||
|
|
const double y = height * .5;
|
||
|
|
const double wh = std::min (x, y);
|
||
|
|
|
||
|
|
const double tri_x = .3 * wh;
|
||
|
|
const double tri_y = .6 * wh;
|
||
|
|
|
||
|
|
cairo_move_to (cr, x + tri_x, y - tri_y);
|
||
|
|
cairo_line_to (cr, x - tri_x, y);
|
||
|
|
cairo_line_to (cr, x + tri_x, y + tri_y);
|
||
|
|
VECTORICONSTROKEOUTLINE();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case Gtkmm2ext::ArdourIcon::NudgeRight:
|
||
|
|
{
|
||
|
|
|
||
|
|
const double x = width * .5;
|
||
|
|
const double y = height * .5;
|
||
|
|
const double wh = std::min (x, y);
|
||
|
|
|
||
|
|
const double tri_x = .3 * wh;
|
||
|
|
const double tri_y = .6 * wh;
|
||
|
|
|
||
|
|
cairo_move_to (cr, x - tri_x, y - tri_y);
|
||
|
|
cairo_line_to (cr, x + tri_x, y);
|
||
|
|
cairo_line_to (cr, x - tri_x, y + tri_y);
|
||
|
|
VECTORICONSTROKEOUTLINE();
|
||
|
|
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return false;
|
||
|
|
} // end case(icon)
|
||
|
|
|
||
|
|
#undef VECTORICONSTROKEFILL
|
||
|
|
#undef VECTORICONSTROKEOUTLINE
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|