New matrix-based editor for connections and bundles, based on thorwil's design.

Add Bundle Manager dialog.


git-svn-id: svn://localhost/ardour2/branches/3.0@4415 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/port_matrix_component.cc

@@ -0,0 +1,107 @@
+/*
+    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.
+
+*/
+
+#include <iostream>
+#include "port_matrix_component.h"
+
+/** Constructor.
+ *  @param p Port matrix that we're in.
+ */
+PortMatrixComponent::PortMatrixComponent (PortMatrixBody* b)
+	: _body (b),
+	  _pixmap (0),
+	  _render_required (true),
+	  _dimension_computation_required (true)
+{
+	
+}
+
+/** Destructor */
+PortMatrixComponent::~PortMatrixComponent ()
+{
+	if (_pixmap) {
+		gdk_pixmap_unref (_pixmap);
+	}
+}
+
+void
+PortMatrixComponent::setup ()
+{
+	_dimension_computation_required = true;
+	_render_required = true;
+}
+
+GdkPixmap *
+PortMatrixComponent::get_pixmap (GdkDrawable *drawable)
+{
+	if (_render_required) {
+
+		if (_dimension_computation_required) {
+			compute_dimensions ();
+			_dimension_computation_required = false;
+		}
+
+		/* we may be zero width or height; if so, just
+		   use the smallest allowable pixmap */
+		if (_width == 0) {
+			_width = 1;
+		}
+		if (_height == 0) {
+			_height = 1;
+		}
+
+		/* make a pixmap of the right size */
+		if (_pixmap) {
+			gdk_pixmap_unref (_pixmap);
+		}
+		_pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
+
+		/* render */
+		cairo_t* cr = gdk_cairo_create (_pixmap);
+		render (cr);
+		cairo_destroy (cr);
+
+		_render_required = false;
+	}
+
+	return _pixmap;
+}
+
+void
+PortMatrixComponent::set_source_rgb (cairo_t *cr, Gdk::Color const & c)
+{
+	cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
+}
+
+void
+PortMatrixComponent::set_source_rgba (cairo_t *cr, Gdk::Color const & c, double a)
+{
+	cairo_set_source_rgba (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p(), a);
+}
+
+std::pair<uint32_t, uint32_t>
+PortMatrixComponent::dimensions ()
+{
+	if (_dimension_computation_required) {
+		compute_dimensions ();
+		_dimension_computation_required = false;
+	}
+
+	return std::make_pair (_width, _height);
+}