2 Copyright (C) 2002-2009 Paul Davis
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
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __gtk_ardour_port_matrix_component_h__
21 #define __gtk_ardour_port_matrix_component_h__
24 #include <gtkmm/eventbox.h>
25 #include <boost/shared_ptr.hpp>
37 /** One component of the PortMatrix. This is a cairo-rendered
40 class PortMatrixComponent
43 PortMatrixComponent (PortMatrix *, PortMatrixBody *);
44 virtual ~PortMatrixComponent ();
46 virtual double component_to_parent_x (double x) const = 0;
47 virtual double parent_to_component_x (double x) const = 0;
48 virtual double component_to_parent_y (double y) const = 0;
49 virtual double parent_to_component_y (double y) const = 0;
50 virtual void mouseover_changed (PortMatrixNode const &) = 0;
51 virtual void draw_extra (cairo_t *) = 0;
53 void set_show_ports (bool);
55 GdkPixmap* get_pixmap (GdkDrawable *);
56 std::pair<uint32_t, uint32_t> dimensions ();
58 void require_render () {
59 _render_required = true;
62 void require_rebuild () {
63 _dimension_computation_required = true;
64 _render_required = true;
67 void set_parent_rectangle (Gdk::Rectangle const & r) {
68 _parent_rectangle = r;
71 Gdk::Rectangle parent_rectangle () const {
72 return _parent_rectangle;
75 /** @return grid spacing */
76 static uint32_t grid_spacing () {
82 /** @return width of borders drawn around labels */
83 static uint32_t label_border_width () {
87 /** @return padding between a name and the nearest line */
88 static uint32_t name_pad () {
92 /** @return width of thin lines in the grid */
93 static double thin_grid_line_width () {
97 /** @return width of thick lines in the grid */
98 static double thick_grid_line_width () {
102 /** @return space around the connection indicator */
103 static uint32_t connection_indicator_pad () {
107 static uint32_t mouseover_line_width () {
111 /** @return angle of column labels, in radians */
112 static double angle () {
116 /** @return background colour */
117 Gdk::Color background_colour ();
119 /* XXX I guess these colours should come from a theme, or something */
121 /** @return text colour */
122 static Gdk::Color text_colour () {
123 return Gdk::Color ("#ffffff");
126 /** @return grid line colour */
127 static Gdk::Color grid_colour () {
128 return Gdk::Color ("#000000");
131 /** @return colour of association blobs */
132 static Gdk::Color association_colour () {
133 return Gdk::Color ("#00ff00");
136 /** @return colour to paint grid squares when they can't be associated */
137 static Gdk::Color unknown_colour () {
138 return Gdk::Color ("#cccccc");
141 /** @return colour to paint mouseover lines */
142 static Gdk::Color mouseover_line_colour () {
143 return Gdk::Color ("#ff0000");
146 /** @return colour to paint channel highlights */
147 static Gdk::Color highlighted_channel_colour () {
148 return Gdk::Color ("#777777");
152 static Gdk::Color get_a_bundle_colour (int x) {
154 return Gdk::Color ("#547027");
156 return Gdk::Color ("#3552a6");
161 static Gdk::Color get_a_group_colour (int x) {
163 return Gdk::Color ("#222222");
165 return Gdk::Color ("#444444");
169 void set_source_rgb (cairo_t *, Gdk::Color const &);
170 void set_source_rgba (cairo_t *, Gdk::Color const &, double);
171 uint32_t group_size (boost::shared_ptr<const PortGroup>) const;
172 uint32_t channel_to_position (ARDOUR::BundleChannel, PortGroupList const *) const;
173 std::pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> position_to_group_and_channel (uint32_t, PortGroupList const *) const;
175 /** Render the complete component to a cairo context. */
176 virtual void render (cairo_t *) = 0;
177 /** Compute any required dimensions. This must set up
178 * _width and _height.
180 virtual void compute_dimensions () = 0;
183 PortMatrixBody* _body; ///< the PortMatrixBody that we're in
184 uint32_t _width; ///< full width of the contents
185 uint32_t _height; ///< full height of the contents
186 Gdk::Rectangle _parent_rectangle;
189 GdkPixmap* _pixmap; ///< pixmap
190 bool _render_required; ///< true if the rendered pixmap is out of date
191 bool _dimension_computation_required; ///< true if the dimensions are out of date