Ichthyostega
670c670d55
over time, a specific Lumiera code writing style has emerged. The GUI, as it stood, used somewhat different conventions, which now have been aligned to the common standard. Basically we use GNU style, with some adjustments for OO-programming, we prefer CamelCase, and write TypeNames uppercase, variableNames lowercase
360 lines
8.8 KiB
C++
360 lines
8.8 KiB
C++
/*
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TimelineTrack - representation of a group track in the timeline display
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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
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the 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 "gui/widget/timeline/timeline-track.hpp"
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#include "gui/widget/timeline-widget.hpp"
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#include "gui/window-manager.hpp"
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#include "gui/dialog/name-chooser.hpp"
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#include "include/logging.h"
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using namespace Gtk;
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using namespace sigc;
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using std::shared_ptr;
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namespace gui {
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namespace widget {
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namespace timeline {
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const float Track::ExpandAnimationPeriod = 0.15;
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Track::Track (TimelineWidget& owner,
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shared_ptr<model::Track> track)
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: timelineWidget(owner)
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, modelTrack(track)
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, expanded(true)
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, expandDirection(None)
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, headerWidget(*this)
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, enableButton(Gtk::StockID("track_enabled"), WindowManager::MenuIconSize)
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, lockButton(Gtk::StockID("track_unlocked"), WindowManager::MenuIconSize)
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{
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REQUIRE(modelTrack);
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titleMenuButton.set_relief(RELIEF_HALF);
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//titleMenuButton.unset_flags(CAN_FOCUS);
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buttonBar.append(enableButton, mem_fun(this, &Track::onToggleEnabled));
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buttonBar.append(lockButton, mem_fun(this, &Track::onToggleLocked));
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headerWidget.set_child_widget(headerBox);
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headerBox.pack_start(titleMenuButton, PACK_SHRINK);
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headerBox.pack_start(buttonBar, PACK_SHRINK);
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headerWidget.show_all();
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#if false ///////////////////////TODO unfinished code
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// Setup the title menu button
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Menu::MenuList& title_list = titleMenuButton.get_menu().items();
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title_list.push_back( Menu_Helpers::MenuElem(_("_Name..."),
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mem_fun(this, &Track::on_set_name) ) );
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title_list.push_back( Menu_Helpers::SeparatorElem() );
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title_list.push_back( Menu_Helpers::MenuElem(_("_Remove"),
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mem_fun(this, &Track::on_remove_track) ) );
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#endif
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updateEnableButton();
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updateLockButton();
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updateName();
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#if false ///////////////////////TODO unfinished code
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// Setup the context menu
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Menu::MenuList& context_list = contextMenu.items();
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//context_list.push_back( Menu_Helpers::MenuElem(_("_Add Track"),
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// mem_fun(timelineWidget, &TimelineWidget::on_add_track_command) ) );
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context_list.push_back( Menu_Helpers::MenuElem(_("_Remove Track"),
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mem_fun(this, &Track::on_remove_track) ) );
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#endif
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// Connect to the model
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modelTrack->signalEnabledChanged().connect(sigc::mem_fun(this,
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&Track::onEnabledChanged));
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modelTrack->signalLockedChanged().connect(sigc::mem_fun(this,
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&Track::onLockedChanged));
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modelTrack->signalNameChanged().connect(sigc::mem_fun(this,
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&Track::onNameChanged));
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}
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Track::~Track()
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{
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headerWidget.remove(headerBox);
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}
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Gtk::Widget&
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Track::get_header_widget()
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{
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return headerWidget;
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}
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shared_ptr<model::Track>
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Track::getModelTrack() const
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{
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return modelTrack;
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}
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int
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Track::get_height() const
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{
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return 100;
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}
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bool
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Track::get_expanded() const
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{
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return expanded;
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}
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shared_ptr<timeline::Clip>
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Track::getClipAt (Time) const
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{
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// Default implementation returns empty pointer
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return shared_ptr<timeline::Clip>();
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}
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void
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Track::expand_collapse (ExpandDirection direction)
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{
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REQUIRE(direction != None);
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expandDirection = direction;
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if(direction == Expand)
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{
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expanded = true;
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expandAnimationState = 0.0;
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}
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else
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{
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expanded = false;
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expandAnimationState = 1.0;
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}
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// Create a timer if we don't already have one
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if(!expand_timer)
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{
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expand_timer.reset(new Glib::Timer());
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expand_timer->start();
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}
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else // Reset the timer if we do
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expand_timer->reset();
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}
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float
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Track::get_expand_animation_state() const
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{
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ENSURE(expandAnimationState >= 0.0 &&
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expandAnimationState <= 1.0);
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return expandAnimationState;
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}
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bool
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Track::is_expand_animating() const
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{
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return expandDirection != None;
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}
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void
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Track::tick_expand_animation()
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{
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REQUIRE(expandDirection != None); // tick_expand_animation should not
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// be unless is_expand_animating
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// returns true
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REQUIRE(expand_timer);
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const float delta =
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(float)expand_timer->elapsed() / ExpandAnimationPeriod;
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expand_timer->reset(); // reset the timer to t=0
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if(expandDirection == Expand)
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{
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expandAnimationState += delta;
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if(expandAnimationState >= 1.0)
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expandDirection = None;
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}
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else
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{
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expandAnimationState -= delta;
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if(expandAnimationState <= 0.0)
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expandDirection = None;
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}
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if(expandDirection == None)
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expand_timer.reset(); // We've finished with the timer - delete it
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}
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Gtk::ExpanderStyle
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Track::get_expander_style() const
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{
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if (expanded)
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{
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if(expandDirection == None)
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return EXPANDER_EXPANDED;
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else if(expandAnimationState >= 2.0 / 3.0)
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return EXPANDER_SEMI_EXPANDED;
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else if(expandAnimationState >= 1.0 / 3.0)
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return EXPANDER_SEMI_COLLAPSED;
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else
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return EXPANDER_COLLAPSED;
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}
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else
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{
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if(expandDirection == None)
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return EXPANDER_COLLAPSED;
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else if(expandAnimationState >= 2.0 / 3.0)
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return EXPANDER_EXPANDED;
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else if(expandAnimationState >= 1.0 / 3.0)
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return EXPANDER_SEMI_EXPANDED;
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else
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return EXPANDER_SEMI_COLLAPSED;
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}
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NOBUG_ERROR(gui, "Track::get_expander_style() final return reached");
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return EXPANDER_COLLAPSED; // This should never happen
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}
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void
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Track::show_header_context_menu (guint button, guint32 time)
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{
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contextMenu.popup(button, time);
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}
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void
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Track::onEnabledChanged (bool)
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{
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updateEnableButton();
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}
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void
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Track::onLockedChanged (bool)
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{
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updateLockButton();
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}
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void
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Track::on_set_name()
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{
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REQUIRE(modelTrack);
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Gtk::Window *window = dynamic_cast<Window*>(timelineWidget.get_toplevel());
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REQUIRE(window != NULL);
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dialog::NameChooser dialog(*window, _("Set Track Name"), modelTrack->get_name());
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if (RESPONSE_OK == dialog.run())
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modelTrack->set_name(dialog.getName());
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}
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void
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Track::onNameChanged (std::string)
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{
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updateName();
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}
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void
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Track::on_remove_track()
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{
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REQUIRE(modelTrack);
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shared_ptr<TimelineState> state = timelineWidget.get_state();
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REQUIRE(state);
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state->getSequence()->remove_descendant_track(modelTrack);
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}
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void
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Track::onToggleEnabled()
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{
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bool status = modelTrack->getEnabled();
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modelTrack->setEnabled(!status);
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}
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void
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Track::onToggleLocked()
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{
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bool status = modelTrack->getLocked();
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modelTrack->setLocked(!status);
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}
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void
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Track::updateEnableButton()
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{
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REQUIRE (modelTrack);
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if (modelTrack->getEnabled())
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{
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enableButton.setStockID (Gtk::StockID("track_enabled"), WindowManager::MenuIconSize);
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enableButton.set_tooltip_text(_("Disable track"));
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}
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else
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{
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enableButton.setStockID (Gtk::StockID("track_disabled"), WindowManager::MenuIconSize);
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enableButton.set_tooltip_text(_("Enable track"));
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}
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}
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void
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Track::updateLockButton()
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{
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REQUIRE (modelTrack);
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if (modelTrack->getLocked())
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{
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lockButton.setStockID (Gtk::StockID("track_locked"), WindowManager::MenuIconSize);
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lockButton.set_tooltip_text(_("Unlock track"));
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}
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else
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{
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lockButton.setStockID (Gtk::StockID("track_unlocked"), WindowManager::MenuIconSize);
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lockButton.set_tooltip_text(_("Lock track"));
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}
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}
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void
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Track::updateName()
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{
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REQUIRE(modelTrack);
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titleMenuButton.set_label(modelTrack->get_name());
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}
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}}}// namespace gui::widget::timeline
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