--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file widget_keyframe_list.cpp
+** \brief A custom widget to manage keyframes in the timeline.
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007 Chris Moore
+** Copyright (c) 2009 Carlos López
+**
+** This package 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 package 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.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "widget_keyframe_list.h"
+#include "app.h"
+#include <gtkmm/menu.h>
+#include <synfig/exception.h>
+#include <ETL/misc>
+
+#include "general.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+using namespace studio;
+
+
+/* === M A C R O S ========================================================= */
+#define WIDGET_KEYFRAME_LIST_DEFAULT_FPS 24.0
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Widget_Keyframe_List::Widget_Keyframe_List():
+ adj_default(0,0,2,1/WIDGET_KEYFRAME_LIST_DEFAULT_FPS,10/WIDGET_KEYFRAME_LIST_DEFAULT_FPS),
+ kf_list_(&default_kf_list_),
+ time_ratio("4f", WIDGET_KEYFRAME_LIST_DEFAULT_FPS)
+{
+ adj_timescale=0;
+ editable_=true;
+ fps=WIDGET_KEYFRAME_LIST_DEFAULT_FPS;
+ set_size_request(-1,64);
+ //!This signal is called when the widget need to be redrawn
+ signal_expose_event().connect(sigc::mem_fun(*this, &studio::Widget_Keyframe_List::redraw));
+ //! The widget respond to mouse button press and release and to
+ //! left button motion
+ add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
+ add_events(Gdk::BUTTON1_MOTION_MASK /*| Gdk::BUTTON3_MOTION_MASK*/);
+ add_events(Gdk::POINTER_MOTION_MASK);
+ set_time_adjustment(&adj_default);
+ queue_draw();
+}
+
+Widget_Keyframe_List::~Widget_Keyframe_List()
+{
+}
+
+bool
+Widget_Keyframe_List::redraw(GdkEventExpose */*bleh*/)
+{
+
+ const int h(get_height());
+ const int w(get_width());
+
+ //!Boundaries of the drawing area in time units.
+ synfig::Time top(adj_timescale->get_upper());
+ synfig::Time bottom(adj_timescale->get_lower());
+
+ //! The graphic context
+ Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
+ //! A rectangle that defines the drawing area.
+ Gdk::Rectangle area(0,0,w,h);
+
+ //! draw a background
+ gc->set_rgb_fg_color(Gdk::Color("#9d9d9d"));
+ get_window()->draw_rectangle(gc, true, 0, 0, w, h);
+
+ if(!editable_)
+ {
+ return true; //needs fixing!
+ }
+ //!Returns if there are not keyframes to draw.
+ if (kf_list_->empty()) return false;
+
+ //!Loop all the keyframes
+ synfig::KeyframeList::iterator iter,selected_iter;
+ bool show_selected(false);
+ for(iter=kf_list_->begin();iter!=kf_list_->end();iter++)
+ {
+ //!do not draw keyframes out of the widget boundaries
+ if (iter->get_time()>top || iter->get_time()<bottom)
+ continue;
+ //! If the keyframe is not the selected one
+ if(*iter!=selected_kf)
+ {
+ const int x((int)((float)(iter->get_time()-bottom) * (w/(top-bottom)) ) );
+ get_style()->paint_arrow(get_window(), Gtk::STATE_NORMAL,
+ Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
+ x-h/2+1, 0, h, h );
+ }
+ else
+ {
+ selected_iter=iter;
+ show_selected=true;
+ }
+ }
+
+ // we do this so that we can be sure that
+ // the selected keyframe is shown on top
+ if(show_selected)
+ {
+ // If not dragging just show the selected keyframe
+ if (!dragging_)
+ {
+ int x((int)((float)(selected_iter->get_time()-bottom) * (w/(top-bottom)) ) );
+ get_style()->paint_arrow(get_window(), Gtk::STATE_SELECTED,
+ Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
+ x-h/2+1, 0, h, h );
+ }
+ // If dragging then show the selected as insensitive and the
+ // dragged as selected
+ else
+ {
+ int x((int)((float)(selected_iter->get_time()-bottom) * (w/(top-bottom)) ) );
+ get_style()->paint_arrow(get_window(), Gtk::STATE_INSENSITIVE,
+ Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
+ x-h/2, 0, h, h );
+ x=(int)((float)(dragging_kf_time-bottom) * (w/(top-bottom)) ) ;
+ get_style()->paint_arrow(get_window(), Gtk::STATE_SELECTED,
+ Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
+ x-h/2+1, 0, h, h );
+ }
+ }
+ return true;
+}
+
+
+void
+Widget_Keyframe_List::set_kf_list(synfig::KeyframeList* x)
+{
+ kf_list_=x;
+ set_selected_keyframe(selected_none);
+ selected_=false;
+ dragging_=false;
+}
+
+void
+Widget_Keyframe_List::set_selected_keyframe(const synfig::Keyframe &x)
+{
+ selected_kf=x;
+ selected_=true;
+ dragging_kf_time=selected_kf.get_time();
+ //signal_keyframe_selected_(selected_kf);
+ dragging_=false;
+ queue_draw();
+}
+
+bool
+Widget_Keyframe_List::perform_move_kf(bool delta=false)
+{
+ if(!selected_)
+ return false;
+ if(dragging_kf_time == selected_kf.get_time())
+ return false; // change this checking if not sticked to integer frames
+ Time selected_kf_time(selected_kf.get_time());
+ Time prev, next;
+ kf_list_->find_prev_next(selected_kf_time, prev, next);
+ // Not possible to set delta to the first keyframe
+ // perform normal movement
+ // As suggested by Zelgadis it is better to not perform anything.
+ if (prev==Time::begin() && delta==true)
+ {
+ synfig::info(_("Not possible to ALT-drag the first keyframe"));
+ return false;
+ }
+ if(!delta)
+ {
+ synfigapp::Action::Handle action(synfigapp::Action::create("KeyframeSet"));
+ if(!action)
+ return false;
+ selected_kf.set_time(dragging_kf_time);
+ action->set_param("canvas",canvas_interface_->get_canvas());
+ action->set_param("canvas_interface",canvas_interface_);
+ action->set_param("keyframe",selected_kf);
+ try
+ {
+ canvas_interface_->get_instance()->perform_action(action);
+ }
+ catch(...)
+ {
+ return false;
+ }
+ }
+ else
+ {
+ Keyframe prev_kf(*kf_list_->find_prev(selected_kf_time));
+ Time prev_kf_time(prev_kf.get_time());
+ if (prev_kf_time >= dragging_kf_time) //Not allowed
+ {
+ synfig::warning(_("Delta set not allowed"));
+ synfig::info(_("Widget_Keyframe_List::perform_move_kf(%i)::prev_kf_time=%s"), delta, prev_kf_time.get_string().c_str());
+ synfig::info(_("Widget_Keyframe_List::perform_move_kf(%i)::dragging_kf_time=%s"), delta, dragging_kf_time.get_string().c_str());
+ return false;
+ }
+ else
+ {
+ Time old_delta_time(selected_kf_time-prev_kf_time);
+ Time new_delta_time(dragging_kf_time-prev_kf_time);
+ Time change_delta(new_delta_time-old_delta_time);
+ synfigapp::Action::Handle action(synfigapp::Action::create("KeyframeSetDelta"));
+ if(!action)
+ return false;
+ action->set_param("canvas",canvas_interface_->get_canvas());
+ action->set_param("canvas_interface",canvas_interface_);
+ action->set_param("keyframe",prev_kf);
+ action->set_param("delta",change_delta);
+ canvas_interface_->get_instance()->perform_action(action);
+ }
+ }
+ queue_draw();
+ return true;
+}
+
+bool
+Widget_Keyframe_List::on_event(GdkEvent *event)
+{
+ const int x(static_cast<int>(event->button.x));
+ //const int y(static_cast<int>(event->button.y));
+ //!Boundaries of the drawing area in time units.
+ synfig::Time top(adj_timescale->get_upper());
+ synfig::Time bottom(adj_timescale->get_lower());
+ //!pos is the [0,1] relative horizontal place on the widget
+ float pos((float)x/(get_width()));
+ if(pos<0.0f)pos=0.0f;
+ if(pos>1.0f)pos=1.0f;
+ //! The time where the event x is
+ synfig::Time t((float)(bottom+pos*(top-bottom)));
+ //Do not respond mouse events if the list is empty
+ if(!kf_list_->size())
+ return true;
+
+ //! here the guts of the event
+ switch(event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ if(editable_)
+ {
+ // here is captured mouse motion
+ // AND left or right mouse button pressed
+ if (event->motion.state & (GDK_BUTTON1_MASK /*| GDK_BUTTON3_MASK*/))
+ {
+ // stick to integer frames. It can be optional in the future
+ if(fps) t = floor(t*fps + 0.5)/fps;
+ dragging_kf_time=t;
+ dragging_=true;
+ queue_draw();
+ return true;
+ }
+ // here is captured mouse motion
+ // AND NOT left or right mouse button pressed
+ else
+ {
+ Glib::ustring ttip="";
+ synfig::Time p_t,n_t;
+ kf_list_->find_prev_next(t, p_t, n_t);
+ if( (p_t==Time::begin() && n_t==Time::end())
+ ||
+ ((t-p_t)>time_ratio && (n_t-t)>time_ratio)
+ )
+ {
+ ttip = _("Click and drag keyframes");
+ }
+ else if ((t-p_t)<(n_t-t))
+ {
+ synfig::Keyframe kf(*kf_list_->find_prev(t));
+ synfig::String kf_name(kf.get_description().c_str());
+ ttip = kf_name.c_str();
+ }
+ else
+ {
+ synfig::Keyframe kf(*kf_list_->find_next(t));
+ synfig::String kf_name(kf.get_description().c_str());
+ ttip = kf_name.c_str();
+ }
+ tooltips.set_tip(*this, ttip);
+ dragging_=false;
+ queue_draw();
+ return true;
+ }
+ }
+ break;
+ case GDK_BUTTON_PRESS:
+ changed_=false;
+ dragging_=false;
+ if(event->button.button==1 /*|| event->button.button==3*/)
+ {
+ if(editable_)
+ {
+ synfig::Time prev_t,next_t;
+ kf_list_->find_prev_next(t, prev_t, next_t);
+ if( (prev_t==Time::begin() && next_t==Time::end())
+ ||
+ ((t-prev_t)>time_ratio && (next_t-t)>time_ratio)
+ )
+ {
+ set_selected_keyframe(selected_none);
+ selected_=false;
+ queue_draw();
+ }
+ else if ((t-prev_t)<(next_t-t))
+ {
+ set_selected_keyframe(*(kf_list_->find_prev(t)));
+ queue_draw();
+ selected_=true;
+ }
+ else
+ {
+ set_selected_keyframe(*(kf_list_->find_next(t)));
+ queue_draw();
+ selected_=true;
+ }
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ break;
+ case GDK_BUTTON_RELEASE:
+ if(editable_ && (event->button.button==1 /*|| event->button.button==3*/))
+ {
+ // stick to integer frames.
+ if(fps) t = floor(t*fps + 0.5)/fps;
+ bool stat=false;
+ if(dragging_)
+ {
+ //if (event->button.button==3)
+ if(event->button.state & GDK_MOD1_MASK)
+ {
+ stat=perform_move_kf(true);
+ }
+ else
+ {
+ stat=perform_move_kf(false);
+ }
+ }
+ dragging_=false;
+ return stat;
+ }
+ break;
+ default:
+ break;
+ }
+ return false;
+}
+
+
+void Widget_Keyframe_List::set_time_adjustment(Gtk::Adjustment *x)
+{
+ //disconnect old connections
+ time_value_change.disconnect();
+ time_other_change.disconnect();
+
+ //connect update function to new adjustment
+ adj_timescale = x;
+
+ if(x)
+ {
+ time_value_change = x->signal_value_changed().connect(sigc::mem_fun(*this,&Widget_Keyframe_List::queue_draw));
+ time_other_change = x->signal_changed().connect(sigc::mem_fun(*this,&Widget_Keyframe_List::queue_draw));
+ }
+}
+
+void
+Widget_Keyframe_List::set_fps(float d)
+{
+ if(fps != d)
+ {
+ fps = d;
+ //update everything since we need to redraw already
+ queue_draw();
+ }
+}
+
+void
+Widget_Keyframe_List::set_canvas_interface(etl::loose_handle<synfigapp::CanvasInterface> h)
+{
+ canvas_interface_=h;
+ // Store the values used fomr the canvas interface.
+ if (canvas_interface_)
+ {
+ set_fps(canvas_interface_->get_canvas()->rend_desc().get_frame_rate());
+ set_kf_list(&canvas_interface_->get_canvas()->keyframe_list());
+ }
+}
+
+
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