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 <boost/enable_shared_from_this.hpp>
28 #include <gtkmm/box.h>
29 #include <gtkmm/frame.h>
30 #include <gtkmm/drawingarea.h>
31 #include <gtkmm/eventbox.h>
32 #include <gtkmm/table.h>
33 #include <gtkmm/entry.h>
34 #include <gtkmm/label.h>
36 #include <gtkmm2ext/focus_entry.h>
38 #include "pbd/stateful.h"
40 #include "ardour/types.h"
41 #include "ardour/region.h"
42 #include "evoral/Parameter.hpp"
45 #include "axis_view.h"
49 #include "shared_ptrs.h"
64 class RegionSelection;
67 class TimeAxisViewItem;
74 /** Abstract base class for time-axis views (horizontal editor 'strips')
76 * This class provides the basic LHS controls and display methods. This should be
77 * extended to create functional time-axis based views.
79 class TimeAxisView : public virtual AxisView, public PBD::Stateful, public boost::enable_shared_from_this<TimeAxisView>
82 enum NamePackingBits {
83 NameLabelPacked = 0x1,
88 static uint32_t hLargest;
89 static uint32_t hLarge;
90 static uint32_t hLarger;
91 static uint32_t hNormal;
92 static uint32_t hSmaller;
93 static uint32_t hSmall;
95 TimeAxisView(ARDOUR::Session& sess, PublicEditor& ed, TimeAxisViewPtr parent, ArdourCanvas::Canvas& canvas);
96 virtual ~TimeAxisView ();
98 XMLNode& get_state ();
99 int set_state (const XMLNode&);
101 /** @return index of this TimeAxisView within its parent */
102 int order () const { return _order; }
104 /** @return maximum allowable value of order */
105 static int max_order () { return _max_order; }
107 ArdourCanvas::Group* canvas_display () { return _canvas_display; }
108 ArdourCanvas::Group* canvas_background () { return _canvas_background; }
109 ArdourCanvas::Group* ghost_group () { return _ghost_group; }
111 /** @return effective height (taking children into account) in canvas units, or
112 0 if this TimeAxisView has not yet been shown */
113 uint32_t effective_height () const { return _effective_height; }
115 /** @return y position, or -1 if hidden */
116 double y_position () const { return _y_position; }
118 /** @return our Editor */
119 PublicEditor& editor () const { return _editor; }
121 uint32_t current_height() const { return height; }
123 bool resizer_button_press (GdkEventButton*);
124 bool resizer_button_release (GdkEventButton*);
125 bool resizer_motion (GdkEventMotion*);
126 bool resizer_expose (GdkEventExpose*);
128 void idle_resize (uint32_t);
130 void hide_name_label ();
131 void hide_name_entry ();
132 void show_name_label ();
133 void show_name_entry ();
135 virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
137 void clip_to_viewport ();
139 bool touched (double top, double bot);
141 /** Hide this TrackView */
142 virtual void hide ();
144 /** @return true if hidden, otherwise false */
145 bool hidden () const { return _hidden; }
147 virtual void set_selected (bool);
150 * potential handler for entered events
153 virtual void entered () {}
154 virtual void exited () {}
156 virtual void set_height (uint32_t h);
159 std::pair<TimeAxisViewPtr, ARDOUR::layer_t> covers_y_position (double);
162 * Steps through the defined heights for this TrackView.
163 * Sets bigger to true to step up in size, set to fals eot step smaller.
165 * @param bigger true if stepping should increase in size, false otherwise
167 virtual void step_height (bool bigger);
169 virtual ARDOUR::RouteGroup* route_group() const { return 0; }
170 virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
172 virtual void show_feature_lines (const ARDOUR::AnalysisFeatureList&);
173 virtual void hide_feature_lines ();
175 virtual void set_samples_per_unit (double);
176 virtual void show_selection (TimeSelection&);
177 virtual void hide_selection ();
178 virtual void reshow_selection (TimeSelection&);
179 virtual void show_timestretch (nframes_t start, nframes_t end);
180 virtual void hide_timestretch ();
182 virtual void hide_dependent_views (TimeAxisViewItem&) {}
183 virtual void reveal_dependent_views (TimeAxisViewItem&) {}
185 /* editing operations */
187 virtual bool cut_copy_clear (Selection&, Editing::CutCopyOp) { return false; }
188 virtual bool paste (nframes_t, float times, Selection&, size_t nth) { return false; }
190 virtual void set_selected_regionviews (RegionSelection&) {}
191 virtual void set_selected_points (PointSelection&) {}
193 virtual boost::shared_ptr<ARDOUR::Region> find_next_region (nframes_t pos, ARDOUR::RegionPoint, int32_t dir) {
194 return boost::shared_ptr<ARDOUR::Region> ();
197 void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
199 virtual void get_selectables (nframes_t start, nframes_t end, double top, double bot, std::list<Selectable*>& results);
200 virtual void get_inverted_selectables (Selection&, std::list<Selectable *>& results);
202 void add_ghost (RegionView*);
203 void remove_ghost (RegionView*);
204 void erase_ghost (GhostRegion*);
206 /** called at load time when first GUI idle occurs. put
207 expensive data loading/redisplay code in here. */
208 virtual void first_idle () {}
210 TimeAxisViewPtr get_parent () { return parent; }
211 void set_parent (TimeAxisViewPtr p);
212 bool has_state () const;
214 /* call this on the parent */
216 virtual XMLNode* get_automation_child_xml_node (Evoral::Parameter param) { return 0; }
218 virtual LayerDisplay layer_display () const { return Overlaid; }
219 virtual StreamView* view () const { return 0; }
221 TimeAxisViewPtr find_time_axis (TimeAxisView *);
223 typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
226 /* The Standard LHS Controls */
227 Gtk::HBox controls_hbox;
228 Gtk::Table controls_table;
229 Gtk::EventBox controls_ebox;
230 Gtk::VBox controls_vbox;
231 Gtk::DrawingArea resizer;
232 Gtk::HBox resizer_box;
234 Gtk::Frame name_frame;
235 Gtkmm2ext::FocusEntry name_entry;
237 uint32_t height; /* in canvas units */
239 std::string controls_base_unselected_name;
240 std::string controls_base_selected_name;
242 bool name_entry_button_press (GdkEventButton *ev);
243 bool name_entry_button_release (GdkEventButton *ev);
244 bool name_entry_key_release (GdkEventKey *ev);
245 void name_entry_activated ();
246 sigc::connection name_entry_key_timeout;
247 bool name_entry_key_timed_out ();
248 guint32 last_name_entry_key_press_event;
250 /* derived classes can override these */
252 virtual void name_entry_changed ();
253 virtual bool name_entry_focus_in (GdkEventFocus *ev);
254 virtual bool name_entry_focus_out (GdkEventFocus *ev);
256 /** Handle mouse relaese on our LHS control name ebox.
258 *@ param ev the event
260 virtual bool controls_ebox_button_release (GdkEventButton *ev);
261 virtual bool controls_ebox_scroll (GdkEventScroll *ev);
263 /** Display the standard LHS control menu at when.
265 * @param when the popup activation time
267 virtual void popup_display_menu (guint32 when);
269 /** Build the standard LHS control menu.
270 * Subclasses should extend this method to add their own menu options.
272 virtual void build_display_menu ();
274 /** Do whatever needs to be done to dynamically reset the LHS control menu.
276 virtual bool handle_display_menu_map_event (GdkEventAny *ev) { return false; }
278 /** Build the standard LHS control size menu for the default heights options.
280 virtual void build_size_menu();
282 /** Displays the standard LHS controls size menu for the track heights
284 * @param when the popup activation time
286 void popup_size_menu(guint32 when);
288 /** Handle the size option of our main menu.
290 * @param ev the event
292 gint size_click(GdkEventButton *ev);
294 /* The standard LHS Track control popup-menus */
296 Gtk::Menu *display_menu;
297 Gtk::Menu *size_menu;
299 Gtk::Label name_label;
301 TimeAxisViewPtr parent;
303 /** Find the parent with state */
304 TimeAxisViewPtr get_parent_with_state();
307 bool is_child (TimeAxisViewPtr);
309 void remove_child (TimeAxisViewPtr);
310 void add_child (TimeAxisViewPtr);
312 /* selection display */
314 ArdourCanvas::Group *selection_group;
316 std::list<GhostRegion*> ghosts;
318 std::list<SelectionRect*> free_selection_rects;
319 std::list<SelectionRect*> used_selection_rects;
321 SelectionRect* get_selection_rect(uint32_t id);
323 virtual void selection_click (GdkEventButton*);
328 NamePackingBits name_packing;
330 static void compute_controls_size_info ();
331 static bool need_size_info;
333 void set_heights (uint32_t h);
334 void color_handler ();
336 std::list<ArdourCanvas::SimpleLine*> feature_lines;
337 ARDOUR::AnalysisFeatureList analysis_features;
338 void reshow_feature_lines ();
340 void conditionally_add_to_selection ();
342 ArdourCanvas::Group* _canvas_display;
344 PublicEditor& _editor;
348 ArdourCanvas::Group* _canvas_background;
349 Gtk::VBox* control_parent;
351 uint32_t _effective_height;
352 double _resize_drag_start;
353 ArdourCanvas::Group* _ghost_group;
355 static int const _max_order;
357 }; /* class TimeAxisView */
359 #endif /* __ardour_gtk_time_axis_h__ */