2 Copyright (C) 2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_gtk_time_axis_h__
21 #define __ardour_gtk_time_axis_h__
26 #include <gtkmm/box.h>
27 #include <gtkmm/fixed.h>
28 #include <gtkmm/frame.h>
29 #include <gtkmm/drawingarea.h>
30 #include <gtkmm/eventbox.h>
31 #include <gtkmm/table.h>
32 #include <gtkmm/entry.h>
33 #include <gtkmm/label.h>
34 #include <gtkmm/sizegroup.h>
36 #include <gtkmm2ext/focus_entry.h>
38 #include "pbd/stateful.h"
39 #include "pbd/signals.h"
41 #include "ardour/types.h"
42 #include "ardour/presentation_info.h"
43 #include "ardour/region.h"
45 #include "evoral/Parameter.hpp"
47 #include "canvas/line.h"
50 #include "axis_view.h"
67 namespace ArdourCanvas {
74 class RegionSelection;
77 class TimeAxisViewItem;
87 /** Abstract base class for time-axis views (horizontal editor 'strips')
89 * This class provides the basic LHS controls and display methods. This should be
90 * extended to create functional time-axis based views.
92 class TimeAxisView : public virtual AxisView
95 enum NamePackingBits {
96 NameLabelPacked = 0x1,
101 TimeAxisView(ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
102 virtual ~TimeAxisView ();
104 static PBD::Signal1<void,TimeAxisView*> CatchDeletion;
106 static void setup_sizes ();
108 /** @return index of this TimeAxisView within its parent */
109 int order () const { return _order; }
111 /** @return maximum allowable value of order */
112 static int max_order () { return _max_order; }
114 ArdourCanvas::Container* canvas_display () { return _canvas_display; }
115 ArdourCanvas::Container* ghost_group () { return _ghost_group; }
117 /** @return effective height (taking children into account) in canvas units, or
118 0 if this TimeAxisView has not yet been shown */
119 uint32_t effective_height () const { return _effective_height; }
121 /** @return y position, or -1 if hidden */
122 double y_position () const { return _y_position; }
124 /** @return our Editor */
125 PublicEditor& editor () const { return _editor; }
127 uint32_t current_height() const { return height; }
129 void idle_resize (int32_t);
131 virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
132 virtual void hide ();
134 bool touched (double top, double bot);
136 /** @return true if hidden, otherwise false */
137 bool hidden () const { return _hidden; }
139 void set_selected (bool);
141 virtual bool selectable() const { return true; }
144 * potential handler for entered events
147 virtual void entered () {}
148 virtual void exited () {}
150 enum TrackHeightMode {
156 virtual void set_height (uint32_t h, TrackHeightMode m = OnlySelf);
157 void set_height_enum (Height, bool apply_to_selection = false);
160 virtual void reset_visual_state ();
162 std::pair<TimeAxisView*, double> covers_y_position (double) const;
163 bool covered_by_y_range (double y0, double y1) const;
165 virtual void step_height (bool);
167 virtual ARDOUR::RouteGroup* route_group() const { return 0; }
168 virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
170 virtual void set_samples_per_pixel (double);
171 virtual void show_selection (TimeSelection&);
172 virtual void hide_selection ();
173 virtual void reshow_selection (TimeSelection&);
174 virtual void show_timestretch (framepos_t start, framepos_t end, int layers, int layer);
175 virtual void hide_timestretch ();
177 /* editing operations */
179 virtual void cut_copy_clear (Selection&, Editing::CutCopyOp) {}
181 /** Paste a selection.
182 * @param pos Position to paste to (session frames).
183 * @param selection Selection to paste.
184 * @param ctx Paste context.
186 virtual bool paste (ARDOUR::framepos_t pos,
187 const Selection& selection,
189 const int32_t sub_num) { return false; }
191 virtual void set_selected_regionviews (RegionSelection&) {}
192 virtual void set_selected_points (PointSelection&) {}
194 virtual void fade_range (TimeSelection&) {}
196 virtual boost::shared_ptr<ARDOUR::Region> find_next_region (framepos_t /*pos*/, ARDOUR::RegionPoint, int32_t /*dir*/) {
197 return boost::shared_ptr<ARDOUR::Region> ();
200 void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
202 virtual void get_selectables (ARDOUR::framepos_t, ARDOUR::framepos_t, double, double, std::list<Selectable*>&, bool within = false);
203 virtual void get_inverted_selectables (Selection&, std::list<Selectable *>& results);
205 void add_ghost (RegionView*);
206 void remove_ghost (RegionView*);
207 void erase_ghost (GhostRegion*);
209 /** called at load time when first GUI idle occurs. put
210 expensive data loading/redisplay code in here. */
211 virtual void first_idle () {}
213 TimeAxisView* get_parent () { return parent; }
214 void set_parent (TimeAxisView& p);
216 virtual LayerDisplay layer_display () const { return Overlaid; }
217 virtual StreamView* view () const { return 0; }
219 typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
220 Children get_child_list ();
222 static uint32_t preset_height (Height);
225 static Glib::RefPtr<Gtk::SizeGroup> controls_meters_size_group;
226 static Glib::RefPtr<Gtk::SizeGroup> midi_scroomer_size_group;
227 static unsigned int name_width_px;
228 /* The Standard LHS Controls */
229 Gtk::Table controls_table;
230 Glib::RefPtr<Gtk::SizeGroup> controls_button_size_group;
231 Gtk::EventBox controls_ebox;
232 Gtk::VBox controls_vbox;
233 Gtk::VBox time_axis_vbox;
234 Gtk::HBox time_axis_hbox;
235 Gtk::Frame time_axis_frame;
237 Gtk::Fixed scroomer_placeholder;
239 uint32_t height; /* in canvas units */
240 std::string controls_base_unselected_name;
241 std::string controls_base_selected_name;
242 Gtk::Menu* display_menu; /* The standard LHS Track control popup-menus */
243 TimeAxisView* parent;
244 ArdourCanvas::Container* selection_group;
245 ArdourCanvas::Container* _ghost_group;
246 std::list<GhostRegion*> ghosts;
247 std::list<SelectionRect*> free_selection_rects;
248 std::list<SelectionRect*> used_selection_rects;
251 Gtk::Menu* _size_menu;
252 ArdourCanvas::Line* _canvas_separator;
253 ArdourCanvas::Container* _canvas_display;
255 PublicEditor& _editor;
257 virtual bool can_edit_name() const;
259 void begin_name_edit ();
260 void end_name_edit (std::string, int);
262 /* derived classes can override these */
264 virtual bool name_entry_changed (std::string const&);
266 /** Handle mouse relaese on our LHS control name ebox.
268 *@ param ev the event
270 virtual bool controls_ebox_button_release (GdkEventButton*);
271 virtual bool controls_ebox_scroll (GdkEventScroll*);
272 virtual bool controls_ebox_button_press (GdkEventButton*);
273 virtual bool controls_ebox_motion (GdkEventMotion*);
274 virtual bool controls_ebox_leave (GdkEventCrossing*);
276 /** Display the standard LHS control menu at when.
278 * @param when the popup activation time
280 virtual void popup_display_menu (guint32 when);
282 /** Build the standard LHS control menu.
283 * Subclasses should extend this method to add their own menu options.
285 virtual void build_display_menu ();
287 /** Do whatever needs to be done to dynamically reset the LHS control menu.
289 virtual bool handle_display_menu_map_event (GdkEventAny * /*ev*/) { return false; }
292 bool is_child (TimeAxisView*);
294 virtual void remove_child (boost::shared_ptr<TimeAxisView>);
295 void add_child (boost::shared_ptr<TimeAxisView>);
297 /* selection display */
299 virtual void selection_click (GdkEventButton*);
301 void color_handler ();
303 void conditionally_add_to_selection ();
305 void build_size_menu ();
308 Gtk::VBox* control_parent;
310 uint32_t _effective_height;
311 double _resize_drag_start;
313 GdkCursor* _preresize_cursor;
314 bool _have_preresize_cursor;
315 bool _ebox_release_can_act;
317 static uint32_t button_height;
318 static uint32_t extra_height;
319 static int const _max_order;
321 SelectionRect* get_selection_rect(uint32_t id);
323 void compute_heights ();
324 bool maybe_set_cursor (int y);
326 }; /* class TimeAxisView */
328 #endif /* __ardour_gtk_time_axis_h__ */