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/frame.h>
28 #include <gtkmm/drawingarea.h>
29 #include <gtkmm/eventbox.h>
30 #include <gtkmm/table.h>
31 #include <gtkmm/entry.h>
32 #include <gtkmm/label.h>
34 #include <gtkmm2ext/focus_entry.h>
36 #include "pbd/stateful.h"
37 #include "pbd/signals.h"
39 #include "ardour/types.h"
40 #include "ardour/region.h"
41 #include "evoral/Parameter.hpp"
44 #include "axis_view.h"
62 class RegionSelection;
65 class TimeAxisViewItem;
72 /** Abstract base class for time-axis views (horizontal editor 'strips')
74 * This class provides the basic LHS controls and display methods. This should be
75 * extended to create functional time-axis based views.
77 class TimeAxisView : public virtual AxisView
80 enum NamePackingBits {
81 NameLabelPacked = 0x1,
87 TimeAxisView(ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
88 virtual ~TimeAxisView ();
90 static PBD::Signal1<void,TimeAxisView*> CatchDeletion;
92 /** @return index of this TimeAxisView within its parent */
93 int order () const { return _order; }
95 /** @return maximum allowable value of order */
96 static int max_order () { return _max_order; }
98 virtual void enter_internal_edit_mode () {}
99 virtual void leave_internal_edit_mode () {}
101 ArdourCanvas::Group* canvas_display () { return _canvas_display; }
102 ArdourCanvas::Group* canvas_background () { return _canvas_background; }
103 ArdourCanvas::Group* ghost_group () { return _ghost_group; }
105 /** @return effective height (taking children into account) in canvas units, or
106 0 if this TimeAxisView has not yet been shown */
107 uint32_t effective_height () const { return _effective_height; }
109 /** @return y position, or -1 if hidden */
110 double y_position () const { return _y_position; }
112 /** @return our Editor */
113 PublicEditor& editor () const { return _editor; }
115 uint32_t current_height() const { return height; }
117 bool resizer_button_press (GdkEventButton*);
118 bool resizer_button_release (GdkEventButton*);
119 bool resizer_motion (GdkEventMotion*);
120 bool resizer_expose (GdkEventExpose*);
122 void idle_resize (uint32_t);
124 void hide_name_label ();
125 void hide_name_entry ();
126 void show_name_label ();
127 void show_name_entry ();
129 virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
130 virtual void hide ();
132 void clip_to_viewport ();
134 bool touched (double top, double bot);
136 /** @return true if hidden, otherwise false */
137 bool hidden () const { return _hidden; }
139 virtual void set_selected (bool);
142 * potential handler for entered events
145 virtual void entered () {}
146 virtual void exited () {}
148 virtual void set_height (uint32_t h);
149 void set_height_enum (Height, bool apply_to_selection = false);
152 virtual void reset_visual_state ();
154 std::pair<TimeAxisView*, ARDOUR::layer_t> covers_y_position (double);
156 virtual void step_height (bool);
158 virtual ARDOUR::RouteGroup* route_group() const { return 0; }
159 virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
161 virtual void set_samples_per_unit (double);
162 virtual void show_selection (TimeSelection&);
163 virtual void hide_selection ();
164 virtual void reshow_selection (TimeSelection&);
165 virtual void show_timestretch (framepos_t start, framepos_t end);
166 virtual void hide_timestretch ();
168 virtual void hide_dependent_views (TimeAxisViewItem&) {}
169 virtual void reveal_dependent_views (TimeAxisViewItem&) {}
171 /* editing operations */
173 virtual void cut_copy_clear (Selection&, Editing::CutCopyOp) {}
174 virtual bool paste (ARDOUR::framepos_t, float /*times*/, Selection&, size_t /*nth*/) { return false; }
176 virtual void set_selected_regionviews (RegionSelection&) {}
177 virtual void set_selected_points (PointSelection&) {}
179 virtual boost::shared_ptr<ARDOUR::Region> find_next_region (framepos_t /*pos*/, ARDOUR::RegionPoint, int32_t /*dir*/) {
180 return boost::shared_ptr<ARDOUR::Region> ();
183 void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
185 virtual void get_selectables (ARDOUR::framepos_t, ARDOUR::framepos_t, double, double, std::list<Selectable*>&);
186 virtual void get_inverted_selectables (Selection&, std::list<Selectable *>& results);
188 void add_ghost (RegionView*);
189 void remove_ghost (RegionView*);
190 void erase_ghost (GhostRegion*);
192 /** called at load time when first GUI idle occurs. put
193 expensive data loading/redisplay code in here. */
194 virtual void first_idle () {}
196 TimeAxisView* get_parent () { return parent; }
197 void set_parent (TimeAxisView& p);
199 virtual LayerDisplay layer_display () const { return Overlaid; }
200 virtual StreamView* view () const { return 0; }
202 typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
203 Children get_child_list ();
205 SelectionRect* get_selection_rect(uint32_t id);
207 static uint32_t preset_height (Height);
210 /* The Standard LHS Controls */
211 Gtk::HBox controls_hbox;
212 Gtk::Table controls_table;
213 Gtk::EventBox controls_ebox;
214 Gtk::VBox controls_vbox;
215 Gtk::VBox time_axis_vbox;
216 Gtk::DrawingArea resizer;
217 Gtk::HBox resizer_box;
219 Gtk::Frame name_frame;
220 Gtkmm2ext::FocusEntry name_entry;
222 uint32_t height; /* in canvas units */
224 std::string controls_base_unselected_name;
225 std::string controls_base_selected_name;
227 bool name_entry_button_press (GdkEventButton *ev);
228 bool name_entry_button_release (GdkEventButton *ev);
229 bool name_entry_key_release (GdkEventKey *ev);
230 void name_entry_activated ();
231 sigc::connection name_entry_key_timeout;
232 bool name_entry_key_timed_out ();
233 guint32 last_name_entry_key_press_event;
235 /* derived classes can override these */
237 virtual void name_entry_changed ();
238 virtual bool name_entry_focus_in (GdkEventFocus *ev);
239 virtual bool name_entry_focus_out (GdkEventFocus *ev);
241 /** Handle mouse relaese on our LHS control name ebox.
243 *@ param ev the event
245 virtual bool controls_ebox_button_release (GdkEventButton *ev);
246 virtual bool controls_ebox_scroll (GdkEventScroll *ev);
248 /** Display the standard LHS control menu at when.
250 * @param when the popup activation time
252 virtual void popup_display_menu (guint32 when);
254 /** Build the standard LHS control menu.
255 * Subclasses should extend this method to add their own menu options.
257 virtual void build_display_menu ();
259 /** Do whatever needs to be done to dynamically reset the LHS control menu.
261 virtual bool handle_display_menu_map_event (GdkEventAny * /*ev*/) { return false; }
263 /* The standard LHS Track control popup-menus */
265 Gtk::Menu *display_menu;
267 Gtk::Label name_label;
269 TimeAxisView* parent;
272 bool is_child (TimeAxisView*);
274 void remove_child (boost::shared_ptr<TimeAxisView>);
275 void add_child (boost::shared_ptr<TimeAxisView>);
277 /* selection display */
279 ArdourCanvas::Group *selection_group;
281 std::list<GhostRegion*> ghosts;
283 std::list<SelectionRect*> free_selection_rects;
284 std::list<SelectionRect*> used_selection_rects;
286 virtual void selection_click (GdkEventButton*);
291 NamePackingBits name_packing;
293 void set_heights (uint32_t h);
294 void color_handler ();
296 void conditionally_add_to_selection ();
298 void build_size_menu ();
299 Gtk::Menu* _size_menu;
301 ArdourCanvas::Group* _canvas_display;
303 PublicEditor& _editor;
307 ArdourCanvas::Group* _canvas_background;
308 Gtk::VBox* control_parent;
310 uint32_t _effective_height;
311 double _resize_drag_start;
312 ArdourCanvas::Group* _ghost_group;
314 void compute_heights ();
315 static uint32_t extra_height;
316 static uint32_t small_height;
318 static int const _max_order;
320 }; /* class TimeAxisView */
322 #endif /* __ardour_gtk_time_axis_h__ */