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livetrax/gtk2_ardour/port_matrix_component.h

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/*
Copyright (C) 2002-2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_port_matrix_component_h__
#define __gtk_ardour_port_matrix_component_h__
#include <stdint.h>
#include <gtkmm/eventbox.h>
#include <boost/shared_ptr.hpp>
class PortMatrix;
class PortMatrixBody;
class PortMatrixNode;
class PortGroup;
class PortGroupList;
namespace ARDOUR {
class BundleChannel;
}
/** One component of the PortMatrix. This is a cairo-rendered
* Pixmap.
*/
class PortMatrixComponent
{
public:
PortMatrixComponent (PortMatrix *, PortMatrixBody *);
virtual ~PortMatrixComponent ();
virtual double component_to_parent_x (double x) const = 0;
virtual double parent_to_component_x (double x) const = 0;
virtual double component_to_parent_y (double y) const = 0;
virtual double parent_to_component_y (double y) const = 0;
virtual void mouseover_changed (PortMatrixNode const &) = 0;
virtual void draw_extra (cairo_t *) = 0;
void set_show_ports (bool);
void setup ();
GdkPixmap* get_pixmap (GdkDrawable *);
std::pair<uint32_t, uint32_t> dimensions ();
void require_render () {
_render_required = true;
}
void require_rebuild () {
_dimension_computation_required = true;
_render_required = true;
}
void set_parent_rectangle (Gdk::Rectangle const & r) {
_parent_rectangle = r;
}
Gdk::Rectangle parent_rectangle () const {
return _parent_rectangle;
}
/** @return grid spacing */
static uint32_t grid_spacing () {
return 32;
}
protected:
/** @return width of borders drawn around labels */
static uint32_t label_border_width () {
return 1;
}
/** @return padding between a name and the nearest line */
static uint32_t name_pad () {
return 8;
}
/** @return width of thin lines in the grid */
static double thin_grid_line_width () {
return 0.5;
}
/** @return width of thick lines in the grid */
static double thick_grid_line_width () {
return 1;
}
/** @return space around the connection indicator */
static uint32_t connection_indicator_pad () {
return 8;
}
static uint32_t mouseover_line_width () {
return 4;
}
/** @return angle of column labels, in radians */
static double angle () {
return M_PI / 4;
}
/** @return background colour */
Gdk::Color background_colour ();
/* XXX I guess these colours should come from a theme, or something */
/** @return text colour */
static Gdk::Color text_colour () {
return Gdk::Color ("#ffffff");
}
/** @return grid line colour */
static Gdk::Color grid_colour () {
return Gdk::Color ("#000000");
}
/** @return colour of association blobs */
static Gdk::Color association_colour () {
return Gdk::Color ("#00ff00");
}
/** @return colour to paint grid squares when they can't be associated */
static Gdk::Color unknown_colour () {
return Gdk::Color ("#cccccc");
}
/** @return colour to paint mouseover lines */
static Gdk::Color mouseover_line_colour () {
return Gdk::Color ("#ff0000");
}
/** @return colour to paint channel highlights */
static Gdk::Color highlighted_channel_colour () {
return Gdk::Color ("#777777");
}
/* XXX */
static Gdk::Color get_a_bundle_colour (int x) {
if ((x % 2) == 0) {
return Gdk::Color ("#547027");
} else {
return Gdk::Color ("#3552a6");
}
}
/* XXX */
static Gdk::Color get_a_group_colour (int x) {
if ((x % 2) == 0) {
return Gdk::Color ("#222222");
} else {
return Gdk::Color ("#444444");
}
}
void set_source_rgb (cairo_t *, Gdk::Color const &);
void set_source_rgba (cairo_t *, Gdk::Color const &, double);
uint32_t group_size (boost::shared_ptr<const PortGroup>) const;
uint32_t channel_to_position (ARDOUR::BundleChannel, PortGroupList const *) const;
std::pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> position_to_group_and_channel (uint32_t, PortGroupList const *) const;
/** Render the complete component to a cairo context. */
virtual void render (cairo_t *) = 0;
/** Compute any required dimensions. This must set up
* _width and _height.
*/
virtual void compute_dimensions () = 0;
PortMatrix* _matrix;
PortMatrixBody* _body; ///< the PortMatrixBody that we're in
uint32_t _width; ///< full width of the contents
uint32_t _height; ///< full height of the contents
Gdk::Rectangle _parent_rectangle;
private:
GdkPixmap* _pixmap; ///< pixmap
bool _render_required; ///< true if the rendered pixmap is out of date
bool _dimension_computation_required; ///< true if the dimensions are out of date
};
#endif