b233455b3f
git-svn-id: svn://localhost/ardour2/branches/3.0@5308 d708f5d6-7413-0410-9779-e7cbd77b26cf
98 lines
3.0 KiB
C++
98 lines
3.0 KiB
C++
/*
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Copyright (C) 2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <gtkmm/menu.h>
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#include "editor_component.h"
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#include "cairo_widget.h"
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namespace ARDOUR {
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class Session;
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class RouteGroup;
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}
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class Editor;
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/** Parent class for tabs which represent route groups as coloured tabs;
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* Currently used on the left-hand side of the editor and at the top of the mixer.
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*/
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class GroupTabs : public CairoWidget, public EditorComponent
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{
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public:
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GroupTabs (Editor *);
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void connect_to_session (ARDOUR::Session *);
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protected:
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struct Tab {
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double from; ///< start coordinate
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double to; ///< end coordinate
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Gdk::Color colour; ///< colour
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ARDOUR::RouteGroup* group; ///< route group
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double first_ui_size; ///< GUI size of the first route in the group
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double last_ui_size; ///< GUI size of the last route in the group
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};
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private:
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/** Compute all the tabs for this widget.
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* @return Tabs.
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*/
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virtual std::list<Tab> compute_tabs () const = 0;
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/** Draw a tab.
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* @param cr Cairo context.
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* @param t Tab.
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*/
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virtual void draw_tab (cairo_t* cr, Tab const & t) const = 0;
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/** @param x x coordinate
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* @param y y coordinate
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* @return x or y, depending on which is the primary coordinate for this widget.
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*/
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virtual double primary_coordinate (double, double) const = 0;
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/** Take a list of tabs and alter the route groups to reflect the tabs.
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* @param tabs.
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*/
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virtual void reflect_tabs (std::list<Tab> const & tabs) = 0;
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/** @return Size of the widget along the primary axis */
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virtual double extent () const = 0;
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/** @param g Route group, or 0.
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* @return Menu to be popped up on right-click over the given route group.
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*/
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virtual Gtk::Menu* get_menu (ARDOUR::RouteGroup* g) = 0;
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void render (cairo_t *);
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void on_size_request (Gtk::Requisition *);
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bool on_button_press_event (GdkEventButton *);
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bool on_motion_notify_event (GdkEventMotion *);
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bool on_button_release_event (GdkEventButton *);
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Tab * click_to_tab (double, Tab**, Tab**);
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std::list<Tab> _tabs; ///< current list of tabs
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Tab* _dragging; ///< tab being dragged, or 0
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bool _drag_moved; ///< true if there has been movement during any current drag
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bool _drag_from; ///< true if the drag is of the `from' end of the tab, otherwise it's the `to' end
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double _drag_last; ///< last mouse pointer position during drag
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double _drag_limit; ///< limit of the current drag
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};
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