1 /* === S Y N F I G ========================================================= */
2 /*! \file widget_keyframe_list.cpp
3 ** \brief A custom widget to manage keyframes in the timeline.
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007 Chris Moore
10 ** Copyright (c) 2009 Carlos López
12 ** This package is free software; you can redistribute it and/or
13 ** modify it under the terms of the GNU General Public License as
14 ** published by the Free Software Foundation; either version 2 of
15 ** the License, or (at your option) any later version.
17 ** This package is distributed in the hope that it will be useful,
18 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ** General Public License for more details.
23 /* ========================================================================= */
25 /* === H E A D E R S ======================================================= */
34 #include "widget_keyframe_list.h"
36 #include <gtkmm/menu.h>
37 #include <synfig/exception.h>
44 /* === U S I N G =========================================================== */
48 using namespace synfig;
49 using namespace studio;
52 /* === M A C R O S ========================================================= */
54 /* === G L O B A L S ======================================================= */
56 /* === P R O C E D U R E S ================================================= */
58 /* === M E T H O D S ======================================================= */
60 Widget_Keyframe_List::Widget_Keyframe_List():
62 adj_default(0,0,2,1/24,10/24),
65 kf_list_(&default_kf_list_),
68 set_size_request(-1,64);
69 //!This signal is called when the widget need to be redrawn
70 signal_expose_event().connect(sigc::mem_fun(*this, &studio::Widget_Keyframe_List::redraw));
71 //! The widget respond to mouse button press and release and to
72 //! left button motion
73 add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
74 add_events(Gdk::BUTTON1_MOTION_MASK);
75 set_time_adjustment(&adj_default);
79 Widget_Keyframe_List::~Widget_Keyframe_List()
84 Widget_Keyframe_List::redraw(GdkEventExpose */*bleh*/)
87 const int h(get_height());
88 const int w(get_width());
90 //!Boundaries of the drawing area in time units.
91 synfig::Time top(adj_timescale->get_upper());
92 synfig::Time bottom(adj_timescale->get_lower());
94 //! The graphic context
95 Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(get_window()));
96 //! A rectangle that defines the drawing area.
97 Gdk::Rectangle area(0,0,w,h);
101 return true; //needs fixing!
104 //! draw a background
105 gc->set_rgb_fg_color(Gdk::Color("#7f7f7f"));
106 get_window()->draw_rectangle(gc, true, 0, 0, w, h);
108 //!Returns if there are not keyframes to draw.
109 if (kf_list_->empty()) return false;
111 //!Loop all the keyframes
112 synfig::KeyframeList::iterator iter,selected_iter;
113 bool show_selected(false);
114 for(iter=kf_list_->begin();iter!=kf_list_->end();iter++)
116 //!do not draw keyframes out of the widget boundaries
117 if (iter->get_time()>top || iter->get_time()<bottom)
119 //! If the keyframe is not the selected one
120 if(*iter!=selected_kf)
122 const int x((int)((float)(iter->get_time()-bottom) * (w/(top-bottom)) ) );
123 get_style()->paint_arrow(get_window(), Gtk::STATE_NORMAL,
124 Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
134 // we do this so that we can be sure that
135 // the selected keyframe is shown on top
138 // If not dragging just show the selected keyframe
141 int x((int)((float)(selected_iter->get_time()-bottom) * (w/(top-bottom)) ) );
142 get_style()->paint_arrow(get_window(), Gtk::STATE_SELECTED,
143 Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
146 // If dragging then show the selected as insensitive and the
147 // dragged as selected
150 int x((int)((float)(selected_iter->get_time()-bottom) * (w/(top-bottom)) ) );
151 get_style()->paint_arrow(get_window(), Gtk::STATE_INSENSITIVE,
152 Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
154 x=(int)((float)(dragging_kf_time-bottom) * (w/(top-bottom)) ) ;
155 get_style()->paint_arrow(get_window(), Gtk::STATE_SELECTED,
156 Gtk::SHADOW_OUT, area, *this, " ", Gtk::ARROW_DOWN, 1,
165 Widget_Keyframe_List::set_kf_list(synfig::KeyframeList* x)
168 set_selected_keyframe(selected_none);
174 Widget_Keyframe_List::set_selected_keyframe(const synfig::Keyframe &x)
178 dragging_kf_time=selected_kf.get_time();
179 //signal_keyframe_selected_(selected_kf);
185 Widget_Keyframe_List::perform_move_kf()
189 if(dragging_kf_time == selected_kf.get_time())
191 synfigapp::Action::Handle action(synfigapp::Action::create("KeyframeSet"));
194 selected_kf.set_time(dragging_kf_time);
195 action->set_param("canvas",canvas_interface_->get_canvas());
196 action->set_param("canvas_interface",canvas_interface_);
197 action->set_param("keyframe",selected_kf);
200 canvas_interface_->get_instance()->perform_action(action);
211 Widget_Keyframe_List::on_event(GdkEvent *event)
213 const int x(static_cast<int>(event->button.x));
214 const int y(static_cast<int>(event->button.y));
215 //!Boundaries of the drawing area in time units.
216 synfig::Time top(adj_timescale->get_upper());
217 synfig::Time bottom(adj_timescale->get_lower());
218 //!pos is the [0,1] relative horizontal place on the widget
219 float pos((float)x/(get_width()));
220 if(pos<0.0f)pos=0.0f;
221 if(pos>1.0f)pos=1.0f;
222 //! The time where the event x is
223 synfig::Time t((float)(bottom+pos*(top-bottom)));
225 //Do not respond mouse events if the list is empty
226 if(!kf_list_->size())
228 // synfig::info("Keyframe list empty");
232 //! here the guts of the event
235 case GDK_MOTION_NOTIFY:
238 // stick to integer frames. It can be optional in the future
241 t = floor(t*fps + 0.5)/fps;
249 case GDK_BUTTON_PRESS:
252 if(event->button.button==1)
254 /*synfig::info("Looking keyframe at %s", t.get_string().c_str());
255 synfig::info("Total amount of keyframes %i", kf_list_->size());
256 synfig::info("Time ratio %s",time_ratio.get_string().c_str());
257 synfig::info("Bottom %s",bottom.get_string().c_str());
258 synfig::info("Top %s",top.get_string().c_str());*/
261 synfig::Time prev_t,next_t;
262 kf_list_->find_prev_next(t, prev_t, next_t);
263 if( (prev_t==Time::begin() && next_t==Time::end())
265 ((t-prev_t)>time_ratio && (next_t-t)>time_ratio)
268 set_selected_keyframe(selected_none);
270 /*synfig::info("Selected keyframe set to none");
271 synfig::info("Distance to prev %s", (t-prev_t).get_string().c_str());
272 synfig::info("Distance to next %s", (next_t-t).get_string().c_str());*/
276 else if ((t-prev_t)<(next_t-t))
278 set_selected_keyframe(*(kf_list_->find_prev(t)));
279 //synfig::info("Selected keyframe set to previous");
286 set_selected_keyframe(*(kf_list_->find_next(t)));
287 //synfig::info("Selected keyframe set to next");
301 case GDK_BUTTON_RELEASE:
302 if(editable_ && event->button.button==1)
304 // stick to integer frames.
307 t = floor(t*fps + 0.5)/fps;
311 stat=perform_move_kf();
313 //synfig::info("Dropping keyframe time at: %s", t.get_string().c_str());
314 //synfig::info("perform move result: %i", stat);
326 void Widget_Keyframe_List::set_time_adjustment(Gtk::Adjustment *x)
328 //disconnect old connections
329 time_value_change.disconnect();
330 time_other_change.disconnect();
332 //connect update function to new adjustment
337 time_value_change = x->signal_value_changed().connect(sigc::mem_fun(*this,&Widget_Keyframe_List::queue_draw));
338 time_other_change = x->signal_changed().connect(sigc::mem_fun(*this,&Widget_Keyframe_List::queue_draw));
343 Widget_Keyframe_List::set_fps(float d)
348 //update everything since we need to redraw already
354 Widget_Keyframe_List::set_canvas_interface(etl::loose_handle<synfigapp::CanvasInterface> h)
357 // Store the values used fomr the canvas interface.
358 if (canvas_interface_)
360 set_fps(canvas_interface_->get_canvas()->rend_desc().get_frame_rate());
361 set_kf_list(&canvas_interface_->get_canvas()->keyframe_list());