88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
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/*
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timeline.cpp - Implementation of the timeline widget
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Copyright (C) Lumiera.org
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2008, Joel Holdsworth <joel@airwebreathe.org.uk>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (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 <cairomm-1.0/cairomm/cairomm.h>
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#include "timeline-body.hpp"
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using namespace Gtk;
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using namespace std;
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using namespace lumiera::gui::widgets::timeline;
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namespace lumiera {
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namespace gui {
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namespace widgets {
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namespace timeline {
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TimelineBody::TimelineBody(lumiera::gui::widgets::TimelineWidget &timeline_widget) :
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timelineWidget(timeline_widget)
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{
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timelineWidget.horizontalAdjustment.signal_value_changed().connect(
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sigc::mem_fun(this, &TimelineBody::on_scroll) );
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timelineWidget.verticalAdjustment.signal_value_changed().connect(
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sigc::mem_fun(this, &TimelineBody::on_scroll) );
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}
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void
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TimelineBody::on_scroll()
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{
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queue_draw();
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}
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bool
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TimelineBody::on_expose_event(GdkEventExpose* event)
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{
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// This is where we draw on the window
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Glib::RefPtr<Gdk::Window> window = get_window();
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if(window)
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{
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Gtk::Allocation allocation = get_allocation();
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const int width = allocation.get_width();
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const int height = allocation.get_height();
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Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
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cr->set_line_width(10.0);
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cr->translate(-horizontalAdjustment.get_value(), -verticalAdjustment.get_value());
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cr->save();
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vector<timeline::Track*>::iterator i;
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for(i = tracks.begin(); i != tracks.end(); i++)
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{
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timeline::Track *track = *i;
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g_assert(track != NULL);
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track->draw_track();
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}
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cr->restore();
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}
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return true;
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}
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} // namespace timeline
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} // namespace widgets
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} // namespace gui
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} // namespace lumiera
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