2 * Copyright (C) 2017 Johannes Mueller <github@johannes-mueller.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 #include <gtkmm/container.h>
21 #include "gtkmm2ext/colors.h"
22 #include "gtkmm2ext/gtk_ui.h"
23 #include "gtkmm2ext/gui_thread.h"
24 #include "gtkmm2ext/utils.h"
26 #include "ui_config.h"
28 #include "plugin_display.h"
32 PluginDisplay::PluginDisplay (boost::shared_ptr<ARDOUR::Plugin> p, uint32_t max_height)
35 , _max_height (max_height)
39 add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
40 _plug->DropReferences.connect (_death_connection, invalidator (*this), boost::bind (&PluginDisplay::plugin_going_away, this), gui_context());
41 _plug->QueueDraw.connect (_qdraw_connection, invalidator (*this),
42 boost::bind (&Gtk::Widget::queue_draw, this), gui_context ());
45 PluginDisplay::~PluginDisplay ()
48 cairo_surface_destroy (_surf);
53 PluginDisplay::on_button_press_event (GdkEventButton *ev)
59 PluginDisplay::on_button_release_event (GdkEventButton *ev)
65 PluginDisplay::on_size_request (Gtk::Requisition* req)
68 req->height = _cur_height;
73 PluginDisplay::update_height_alloc (uint32_t height)
75 uint32_t shm = std::min (_max_height, height);
77 if (shm != _cur_height) {
84 PluginDisplay::render_inline (cairo_t* cr, uint32_t width)
86 ARDOUR::Plugin::Display_Image_Surface* dis = _plug->render_inline_display (width, _max_height);
91 /* allocate a local image-surface,
92 * We cannot re-use the data via cairo_image_surface_create_for_data(),
93 * since pixman keeps a reference to it.
94 * we'd need to hand over the data and ha cairo_surface_destroy to free it.
95 * it might be possible to work around via cairo_surface_set_user_data().
98 || dis->width != cairo_image_surface_get_width (_surf)
99 || dis->height != cairo_image_surface_get_height (_surf)
102 cairo_surface_destroy (_surf);
104 _surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, dis->width, dis->height);
107 if (cairo_image_surface_get_stride (_surf) == dis->stride) {
108 memcpy (cairo_image_surface_get_data (_surf), dis->data, dis->stride * dis->height);
110 unsigned char *src = dis->data;
111 unsigned char *dst = cairo_image_surface_get_data (_surf);
112 const int dst_stride = cairo_image_surface_get_stride (_surf);
113 for (int y = 0; y < dis->height; ++y) {
114 memcpy (dst, src, dis->width * 4 /*ARGB32*/);
120 cairo_surface_flush(_surf);
121 cairo_surface_mark_dirty(_surf);
122 const double xc = floor ((width - dis->width) * .5);
123 cairo_set_source_surface(cr, _surf, xc, 0);
130 PluginDisplay::on_expose_event (GdkEventExpose* ev)
132 Gtk::Allocation a = get_allocation();
133 double const width = a.get_width();
134 double const height = a.get_height();
136 cairo_t* cr = gdk_cairo_create (get_window()->gobj());
137 cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
140 Gdk::Color const bg = get_style()->get_bg (Gtk::STATE_NORMAL);
141 cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
142 cairo_rectangle (cr, 0, 0, width, height);
146 cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
147 display_frame(cr, width, height);
149 cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
151 uint32_t ht = render_inline (cr, width);
156 if (_cur_height != 1) {
163 update_height_alloc (ht);
167 std::string name = get_name();
168 Gtkmm2ext::Color fill_color = UIConfiguration::instance().color (string_compose ("%1: fill active", name), &failed);
170 display_frame(cr, width, height);
171 cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
172 cairo_set_line_width(cr, 1.0);
174 cairo_set_source_rgba (cr, .75, .75, .75, 1.0);
176 Gtkmm2ext::set_source_rgb_a (cr, fill_color, 1.0);
185 PluginDisplay::display_frame (cairo_t* cr, double w, double h)
187 cairo_rectangle (cr, 0.0, 0.0, w, h);