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/region.h"
43 #include "evoral/Parameter.hpp"
45 #include "canvas/line.h"
48 #include "axis_view.h"
64 namespace ArdourCanvas {
71 class RegionSelection;
74 class TimeAxisViewItem;
83 /** Abstract base class for time-axis views (horizontal editor 'strips')
85 * This class provides the basic LHS controls and display methods. This should be
86 * extended to create functional time-axis based views.
88 class TimeAxisView : public virtual AxisView
91 enum NamePackingBits {
92 NameLabelPacked = 0x1,
97 TimeAxisView(ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
98 virtual ~TimeAxisView ();
100 static PBD::Signal1<void,TimeAxisView*> CatchDeletion;
102 /** @return index of this TimeAxisView within its parent */
103 int order () const { return _order; }
105 /** @return maximum allowable value of order */
106 static int max_order () { return _max_order; }
108 virtual void enter_internal_edit_mode () {}
109 virtual void leave_internal_edit_mode () {}
111 ArdourCanvas::Container* canvas_display () { return _canvas_display; }
112 ArdourCanvas::Container* ghost_group () { return _ghost_group; }
114 /** @return effective height (taking children into account) in canvas units, or
115 0 if this TimeAxisView has not yet been shown */
116 uint32_t effective_height () const { return _effective_height; }
118 /** @return y position, or -1 if hidden */
119 double y_position () const { return _y_position; }
121 /** @return our Editor */
122 PublicEditor& editor () const { return _editor; }
124 uint32_t current_height() const { return height; }
126 void idle_resize (uint32_t);
128 virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
129 virtual void hide ();
131 bool touched (double top, double bot);
133 /** @return true if hidden, otherwise false */
134 bool hidden () const { return _hidden; }
136 void set_selected (bool);
139 * potential handler for entered events
142 virtual void entered () {}
143 virtual void exited () {}
145 virtual void set_height (uint32_t h);
146 void set_height_enum (Height, bool apply_to_selection = false);
149 virtual void reset_visual_state ();
151 std::pair<TimeAxisView*, double> covers_y_position (double) const;
152 bool covered_by_y_range (double y0, double y1) const;
154 virtual void step_height (bool);
156 virtual ARDOUR::RouteGroup* route_group() const { return 0; }
157 virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
159 virtual void set_samples_per_pixel (double);
160 virtual void show_selection (TimeSelection&);
161 virtual void hide_selection ();
162 virtual void reshow_selection (TimeSelection&);
163 virtual void show_timestretch (framepos_t start, framepos_t end, int layers, int layer);
164 virtual void hide_timestretch ();
166 /* editing operations */
168 virtual void cut_copy_clear (Selection&, Editing::CutCopyOp) {}
170 /** Paste a selection.
171 * @param pos Position to paste to (session frames).
172 * @param paste_count Number of pastes to the same location previously (multi-paste).
173 * @param times Number of times to paste.
174 * @param selection Selection to paste.
175 * @param counts Count of consumed selection items (used to find the
176 * correct item to paste here, then updated for the next pastee).
178 virtual bool paste (ARDOUR::framepos_t pos,
179 unsigned paste_count,
181 const Selection& selection,
182 ItemCounts& counts) { return false; }
184 virtual void set_selected_regionviews (RegionSelection&) {}
185 virtual void set_selected_points (PointSelection&) {}
187 virtual void fade_range (TimeSelection&) {}
189 virtual boost::shared_ptr<ARDOUR::Region> find_next_region (framepos_t /*pos*/, ARDOUR::RegionPoint, int32_t /*dir*/) {
190 return boost::shared_ptr<ARDOUR::Region> ();
193 void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
195 virtual void get_selectables (ARDOUR::framepos_t, ARDOUR::framepos_t, double, double, std::list<Selectable*>&);
196 virtual void get_inverted_selectables (Selection&, std::list<Selectable *>& results);
198 void add_ghost (RegionView*);
199 void remove_ghost (RegionView*);
200 void erase_ghost (GhostRegion*);
202 /** called at load time when first GUI idle occurs. put
203 expensive data loading/redisplay code in here. */
204 virtual void first_idle () {}
206 TimeAxisView* get_parent () { return parent; }
207 void set_parent (TimeAxisView& p);
209 virtual LayerDisplay layer_display () const { return Overlaid; }
210 virtual StreamView* view () const { return 0; }
212 typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
213 Children get_child_list ();
215 SelectionRect* get_selection_rect(uint32_t id);
217 static uint32_t preset_height (Height);
220 static Glib::RefPtr<Gtk::SizeGroup> controls_meters_size_group;
221 static Glib::RefPtr<Gtk::SizeGroup> midi_scroomer_size_group;
222 static unsigned int name_width_px;
223 /* The Standard LHS Controls */
224 Gtk::Table controls_table;
225 Glib::RefPtr<Gtk::SizeGroup> controls_button_size_group;
226 Gtk::EventBox controls_ebox;
227 Gtk::VBox controls_vbox;
228 Gtk::VBox time_axis_vbox;
229 Gtk::HBox time_axis_hbox;
230 Gtk::Frame time_axis_frame;
233 Gtk::Label name_label;
234 Gtk::Fixed scroomer_placeholder;
236 uint32_t height; /* in canvas units */
237 std::string controls_base_unselected_name;
238 std::string controls_base_selected_name;
239 Gtk::Menu* display_menu; /* The standard LHS Track control popup-menus */
240 TimeAxisView* parent;
241 ArdourCanvas::Container* selection_group;
242 ArdourCanvas::Container* _ghost_group;
243 std::list<GhostRegion*> ghosts;
244 std::list<SelectionRect*> free_selection_rects;
245 std::list<SelectionRect*> used_selection_rects;
248 Gtk::Menu* _size_menu;
249 ArdourCanvas::Line* _canvas_separator;
250 ArdourCanvas::Container* _canvas_display;
252 PublicEditor& _editor;
254 virtual bool can_edit_name() const;
256 bool name_entry_key_release (GdkEventKey *ev);
257 bool name_entry_key_press (GdkEventKey *ev);
258 bool name_entry_focus_out (GdkEventFocus *ev);
260 Gtk::Entry* name_entry;
261 void begin_name_edit ();
262 void end_name_edit (int);
264 /* derived classes can override these */
266 virtual void name_entry_changed ();
268 /** Handle mouse relaese on our LHS control name ebox.
270 *@ param ev the event
272 virtual bool controls_ebox_button_release (GdkEventButton*);
273 virtual bool controls_ebox_scroll (GdkEventScroll*);
274 virtual bool controls_ebox_button_press (GdkEventButton*);
275 virtual bool controls_ebox_motion (GdkEventMotion*);
276 virtual bool controls_ebox_leave (GdkEventCrossing*);
278 /** Display the standard LHS control menu at when.
280 * @param when the popup activation time
282 virtual void popup_display_menu (guint32 when);
284 /** Build the standard LHS control menu.
285 * Subclasses should extend this method to add their own menu options.
287 virtual void build_display_menu ();
289 /** Do whatever needs to be done to dynamically reset the LHS control menu.
291 virtual bool handle_display_menu_map_event (GdkEventAny * /*ev*/) { return false; }
294 bool is_child (TimeAxisView*);
296 virtual void remove_child (boost::shared_ptr<TimeAxisView>);
297 void add_child (boost::shared_ptr<TimeAxisView>);
299 /* selection display */
301 virtual void selection_click (GdkEventButton*);
303 void color_handler ();
305 void conditionally_add_to_selection ();
307 void build_size_menu ();
310 Gtk::VBox* control_parent;
312 uint32_t _effective_height;
313 double _resize_drag_start;
315 GdkCursor* _preresize_cursor;
316 bool _have_preresize_cursor;
317 bool _ebox_release_can_act;
319 static uint32_t button_height;
320 static uint32_t extra_height;
321 static int const _max_order;
323 void compute_heights ();
324 bool maybe_set_cursor (int y);
326 }; /* class TimeAxisView */
328 #endif /* __ardour_gtk_time_axis_h__ */