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Diffstat (limited to 'libs/flowcanvas/src/Port.cpp')
| -rw-r--r-- | libs/flowcanvas/src/Port.cpp | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/libs/flowcanvas/src/Port.cpp b/libs/flowcanvas/src/Port.cpp new file mode 100644 index 0000000000..8310b484c3 --- /dev/null +++ b/libs/flowcanvas/src/Port.cpp @@ -0,0 +1,189 @@ +/* This file is part of FlowCanvas. Copyright (C) 2005 Dave Robillard. + * + * FlowCanvas 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. + * + * FlowCanvas 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 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include <libgnomecanvasmm/libgnomecanvasmm.h> +#include "flowcanvas/Port.h" +#include "flowcanvas/Module.h" +#include "flowcanvas/FlowCanvas.h" + +namespace LibFlowCanvas { + + +Port::Port(Module* module, const string& name, bool is_input, int color) +: Gnome::Canvas::Group(*module, 0, 0), + m_module(module), + m_name(name), + m_is_input(is_input), + m_colour(color), + m_label(*this, 1, 1, m_name), + m_rect(*this, 0, 0, 0, 0) +{ + m_menu.items().push_back(Gtk::Menu_Helpers::MenuElem( + "Disconnect All", sigc::mem_fun(this, &Port::disconnect_all))); + + m_rect.property_fill_color_rgba() = color; + + // Make rectangle pretty + //m_rect.property_outline_color_rgba() = 0x8899AAFF; + m_rect.property_outline_color_rgba() = color; + m_rect.property_join_style() = Gdk::JOIN_MITER; + border_width(1.0); + + // Make label pretty + m_label.property_size() = PORT_LABEL_SIZE; + m_label.property_fill_color_rgba() = 0xFFFFFFFF; + m_label.property_weight() = 200; + + m_width = m_label.property_text_width() + 4.0; + m_height = m_label.property_text_height(); + + // Place everything + m_rect.property_x1() = 0; + m_rect.property_y1() = 0; + m_rect.property_x2() = m_width; + m_rect.property_y2() = m_height; + m_label.property_x() = m_label.property_text_width() / 2 + 1; + m_label.property_y() = m_height / 2; + + m_label.raise_to_top(); + +} + + +/** Set the border width of the port's rectangle. + * + * Do NOT directly set the width_units property on the rect, use this function. + */ +void +Port::border_width(double w) +{ + m_border_width = w; + m_rect.property_width_units() = w; +} + + +void +Port::name(const string& n) +{ + m_name = n; + + // Reposition label + m_label.property_text() = m_name; + m_width = m_label.property_text_width() + 4.0; + m_height = m_label.property_text_height(); + m_rect.property_x2() = m_width; + m_rect.property_y2() = m_height; + m_label.property_x() = m_label.property_text_width() / 2 + 1; + m_label.property_y() = m_height / 2; + + m_module->resize(); +} + + +void +Port::zoom(float z) +{ + m_label.property_size() = static_cast<int>(8000 * z); +} + + +/** Update the location of all connections to/from this port if this port has moved */ +void +Port::move_connections() +{ + for (list<Connection*>::iterator i = m_connections.begin(); i != m_connections.end(); i++) { + ((Connection*)(*i))->update_location(); + } +} + + +void +Port::remove_connection(Connection* c) +{ + m_connections.erase( + find(m_connections.begin(), m_connections.end(), c) + ); +} + + +void +Port::disconnect_all() +{ + Connection* c = NULL; + list<Connection*> temp_list = m_connections; + for (list<Connection*>::iterator i = temp_list.begin(); i != temp_list.end(); ++i) { + c = *i; + m_module->patch_bay()->disconnect(c->source_port(), c->dest_port()); + } +} + + +void +Port::hilite(bool b) +{ + m_module->hilite(b); + + for (list<Connection*>::iterator i = m_connections.begin(); i != m_connections.end(); ++i) { + (*i)->hilite(b); + if (b) + (*i)->raise_to_top(); + } + + if (b) { + raise_to_top(); + m_rect.raise_to_top(); + m_label.raise_to_top(); + m_rect.property_fill_color_rgba() = m_colour + 0x33333300; + } else { + m_rect.property_fill_color_rgba() = m_colour; + } +} + + +void +Port::raise_connections() +{ + for (list<Connection*>::iterator i = m_connections.begin(); i != m_connections.end(); ++i) { + (*i)->raise_to_top(); + } +} + + +// Returns the world-relative coordinates of where a connection line +// should attach +Gnome::Art::Point +Port::connection_coords() +{ + double x = (is_input()) ? m_rect.property_x1()-1.0 : m_rect.property_x2()+1.0; + double y = m_rect.property_y1() + m_height / 2; + + i2w(x, y); // convert to world-relative coords + + return Gnome::Art::Point(x, y); +} + + +void +Port::width(double w) +{ + double diff = w - m_width; + m_rect.property_x2() = m_rect.property_x2() + diff; + m_width = w; +} + + +} // namespace LibFlowCanvas |