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>
30 /** One component of the PortMatrix. This is a cairo-rendered
33 class PortMatrixComponent
36 PortMatrixComponent (PortMatrix *, PortMatrixBody *);
37 virtual ~PortMatrixComponent ();
39 virtual double component_to_parent_x (double x) const = 0;
40 virtual double parent_to_component_x (double x) const = 0;
41 virtual double component_to_parent_y (double y) const = 0;
42 virtual double parent_to_component_y (double y) const = 0;
43 virtual void mouseover_changed (PortMatrixNode const &) = 0;
44 virtual void draw_extra (cairo_t *) = 0;
46 void set_show_ports (bool);
48 GdkPixmap* get_pixmap (GdkDrawable *);
49 std::pair<uint32_t, uint32_t> dimensions ();
51 void require_render () {
52 _render_required = true;
55 void require_rebuild () {
56 _dimension_computation_required = true;
57 _render_required = true;
60 void set_parent_rectangle (Gdk::Rectangle const & r) {
61 _parent_rectangle = r;
64 Gdk::Rectangle parent_rectangle () const {
65 return _parent_rectangle;
68 /** @return width of columns in the grid */
69 static uint32_t column_width () {
73 /** @return height of rows in the grid */
74 static uint32_t row_height () {
80 /** @return width of borders drawn around labels */
81 static uint32_t label_border_width () {
85 /** @return padding between a name and the nearest line */
86 static uint32_t name_pad () {
90 /** @return width of thin lines in the grid */
91 static uint32_t thin_grid_line_width () {
95 /** @return width of thick lines in the grid */
96 static uint32_t thick_grid_line_width () {
100 /** @return space around the connection indicator */
101 static uint32_t connection_indicator_pad () {
105 static uint32_t mouseover_line_width () {
109 /** @return angle of column labels, in radians */
110 static double angle () {
114 /* XXX I guess these colours should come from a theme, or something */
116 /** @return background colour */
117 static Gdk::Color background_colour () {
118 return Gdk::Color ("#000000");
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 ("#333333");
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 std::pair<std::string, double> display_port_name (cairo_t*, std::string const &, double) const;
173 /** Render the complete component to a cairo context. */
174 virtual void render (cairo_t *) = 0;
175 /** Compute any required dimensions. This must set up
176 * _width and _height.
178 virtual void compute_dimensions () = 0;
181 PortMatrixBody* _body; ///< the PortMatrixBody that we're in
182 uint32_t _width; ///< full width of the contents
183 uint32_t _height; ///< full height of the contents
184 Gdk::Rectangle _parent_rectangle;
187 GdkPixmap* _pixmap; ///< pixmap
188 bool _render_required; ///< true if the rendered pixmap is out of date
189 bool _dimension_computation_required; ///< true if the dimensions are out of date