gtk2_ardour/time_axis_view.h

   1 /*
   2     Copyright (C) 2003 Paul Davis
   3
   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.
   8
   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.
  13
  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.
  17
  18 */
  19
  20 #ifndef __ardour_gtk_time_axis_h__
  21 #define __ardour_gtk_time_axis_h__
  22
  23 #include <vector>
  24 #include <list>
  25
  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>
  33
  34 #include <gtkmm2ext/focus_entry.h>
  35
  36 #include <pbd/stateful.h>
  37
  38 #include <ardour/types.h>
  39 #include <ardour/region.h>
  40
  41 #include "prompter.h"
  42 #include "axis_view.h"
  43 #include "enums.h"
  44 #include "editing.h"
  45 #include "canvas.h"
  46
  47 namespace ARDOUR {
  48         class Session;
  49         class Region;
  50         class Session;
  51         class RouteGroup;
  52         class Playlist;
  53 }
  54
  55 namespace Gtk {
  56         class Menu;
  57 }
  58
  59 class PublicEditor;
  60 class RegionSelection;
  61 class TimeSelection;
  62 class PointSelection;
  63 class TimeAxisViewItem;
  64 class Selection;
  65 class Selectable;
  66
  67 /**
  68  * TimeAxisView defines the abstract base class for time-axis views.
  69  *
  70  * This class provides the basic LHS controls and display methods. This should be
  71  * extended to create functional time-axis based views.
  72  *
  73  */
  74 class TimeAxisView : public virtual AxisView, public Stateful
  75 {
  76   private:
  77         enum NamePackingBits {
  78                 NameLabelPacked = 0x1,
  79                 NameEntryPacked = 0x2
  80         };
  81
  82   public:
  83         static uint32_t hLargest;
  84         static uint32_t hLarge;
  85         static uint32_t hLarger;
  86         static uint32_t hNormal;
  87         static uint32_t hSmaller;
  88         static uint32_t hSmall;
  89
  90         TimeAxisView(ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
  91         virtual ~TimeAxisView ();
  92
  93         XMLNode& get_state (void);
  94         int set_state (const XMLNode&);
  95
  96         /* public data: XXX create accessor/mutators for these ?? */
  97
  98         PublicEditor& editor;
  99
 100         uint32_t effective_height;  /* in canvas units */
 101         double   y_position;
 102         int      order;
 103
 104         uint32_t current_height() const { return height; }
 105
 106         ArdourCanvas::Group   *canvas_background;
 107         ArdourCanvas::Group   *canvas_display;
 108         Gtk::VBox       *control_parent;
 109
 110         /* The Standard LHS Controls */
 111         Gtk::Frame    controls_frame;
 112         Gtk::HBox     controls_hbox;
 113         Gtk::EventBox controls_lhs_pad;
 114         Gtk::Table    controls_table;
 115         Gtk::EventBox controls_ebox;
 116         Gtk::VBox     controls_vbox;
 117         Gtk::DrawingArea resizer;
 118         Gtk::HBox     resizer_box;
 119         Gtk::HBox     name_hbox;
 120         Gtk::Frame    name_frame;
 121         Gtkmm2ext::FocusEntry name_entry;
 122
 123         bool resizer_button_press (GdkEventButton*);
 124         bool resizer_button_release (GdkEventButton*);
 125         bool resizer_motion (GdkEventMotion*);
 126         bool resizer_expose (GdkEventExpose*);
 127
 128         double resize_drag_start;
 129         int32_t resize_idle_target;
 130         void idle_resize (uint32_t);
 131
 132         void hide_name_label ();
 133         void hide_name_entry ();
 134         void show_name_label ();
 135         void show_name_entry ();
 136
 137         /**
 138          * Display this TrackView as the nth component of the parent box, at y.
 139          *
 140          * @param y
 141          * @param nth
 142          * @param parent the parent component
 143          * @return the height of this TrackView
 144          */
 145         virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
 146
 147         void clip_to_viewport ();
 148
 149         bool touched (double top, double bot);
 150
 151         /**
 152          * Hides this TrackView
 153          */
 154         virtual void hide ();
 155         bool hidden() const { return _hidden; }
 156
 157         virtual void set_selected (bool);
 158
 159         /**
 160          * potential handler for entered events
 161          */
 162
 163         virtual void entered () {}
 164         virtual void exited () {}
 165
 166         virtual void set_height (uint32_t h);
 167         void reset_height();
 168
 169         /**
 170          * Returns a TimeAxisView* if this object covers y, or one of its children does.
 171          *  If the covering object is a child axis, then the child is returned.
 172          * Returns 0 otherwise.
 173          */
 174
 175         TimeAxisView* covers_y_position (double y);
 176
 177         /**
 178          * Steps through the defined heights for this TrackView.
 179          * Sets bigger to true to step up in size, set to fals eot step smaller.
 180          *
 181          * @param bigger true if stepping should increase in size, false otherwise
 182          */
 183         virtual void step_height (bool bigger);
 184
 185         virtual ARDOUR::RouteGroup* edit_group() const { return 0; }
 186         virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
 187
 188         virtual void show_feature_lines (const ARDOUR::AnalysisFeatureList&);
 189         virtual void hide_feature_lines ();
 190
 191         virtual void set_samples_per_unit (double);
 192         virtual void show_selection (TimeSelection&);
 193         virtual void hide_selection ();
 194         virtual void reshow_selection (TimeSelection&);
 195         virtual void show_timestretch (nframes_t start, nframes_t end);
 196         virtual void hide_timestretch ();
 197
 198         virtual void hide_dependent_views (TimeAxisViewItem&) {}
 199         virtual void reveal_dependent_views (TimeAxisViewItem&) {}
 200
 201         /* editing operations */
 202
 203         virtual bool cut_copy_clear (Selection&, Editing::CutCopyOp) { return false; }
 204         virtual bool paste (nframes_t, float times, Selection&, size_t nth) { return false; }
 205
 206         virtual void set_selected_regionviews (RegionSelection&) {}
 207         virtual void set_selected_points (PointSelection&) {}
 208
 209         virtual boost::shared_ptr<ARDOUR::Region> find_next_region (nframes_t pos, ARDOUR::RegionPoint, int32_t dir) {
 210                 return boost::shared_ptr<ARDOUR::Region> ();
 211         }
 212
 213         void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
 214
 215         virtual void get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& results);
 216         virtual void get_inverted_selectables (Selection&, list<Selectable *>& results);
 217
 218         /* called at load time when first GUI idle occurs. put
 219            expensive data loading/redisplay code in here.
 220         */
 221
 222         virtual void first_idle () {}
 223
 224         /* state/serialization management */
 225
 226         void set_parent (TimeAxisView& p);
 227         bool has_state () const;
 228
 229         /* call this on the parent */
 230
 231         virtual XMLNode* get_child_xml_node (const string & childname) { return 0; }
 232
 233   protected:
 234         uint32_t height;  /* in canvas units */
 235
 236         string controls_base_unselected_name;
 237         string controls_base_selected_name;
 238
 239         bool name_entry_button_press (GdkEventButton *ev);
 240         bool name_entry_button_release (GdkEventButton *ev);
 241         bool name_entry_key_release (GdkEventKey *ev);
 242         void name_entry_activated ();
 243         sigc::connection name_entry_key_timeout;
 244         bool name_entry_key_timed_out ();
 245         guint32 last_name_entry_key_press_event;
 246
 247         /* derived classes can override these */
 248
 249         virtual void name_entry_changed ();
 250         virtual bool name_entry_focus_in (GdkEventFocus *ev);
 251         virtual bool name_entry_focus_out (GdkEventFocus *ev);
 252
 253         /**
 254          * Handle mouse relaese on our LHS control name ebox.
 255          *
 256          *@ param ev the event
 257          */
 258         virtual bool controls_ebox_button_release (GdkEventButton *ev);
 259         virtual bool controls_ebox_scroll (GdkEventScroll *ev);
 260
 261         /**
 262          * Displays the standard LHS control menu at when.
 263          *
 264          * @param when the popup activation time
 265          */
 266         virtual void popup_display_menu (guint32 when);
 267
 268         /**
 269          * Build the standard LHS control menu.
 270          * Subclasses should extend this method to add their own menu options.
 271          *
 272          */
 273         virtual void build_display_menu ();
 274
 275         /**
 276          * Do anything that needs to be done to dynamically reset
 277          * the LHS control menu.
 278          */
 279         virtual bool handle_display_menu_map_event (GdkEventAny *ev) { return false; }
 280
 281         /**
 282          * Build the standard LHS control size menu for the default heights options.
 283          *
 284          */
 285         virtual void build_size_menu();
 286
 287         /**
 288          * Displays the standard LHS controls size menu for the track heights
 289          *
 290          * @parem when the popup activation time
 291          */
 292         void popup_size_menu(guint32 when);
 293
 294         /**
 295          * Handle the size option of out main menu.
 296          *
 297          * @param ev the event
 298          */
 299         gint size_click(GdkEventButton *ev);
 300
 301         /* The standard LHS Track control popup-menus */
 302
 303         Gtk::Menu *display_menu;
 304         Gtk::Menu *size_menu;
 305
 306         Gtk::Label    name_label;
 307
 308         TimeAxisView* parent;
 309
 310         /* find the parent with state */
 311
 312         TimeAxisView* get_parent_with_state();
 313
 314         std::vector<TimeAxisView*> children;
 315         bool is_child (TimeAxisView*);
 316
 317         void remove_child (TimeAxisView*);
 318         void add_child (TimeAxisView*);
 319
 320         /* selection display */
 321
 322         ArdourCanvas::Group      *selection_group;
 323
 324         list<SelectionRect*> free_selection_rects;
 325         list<SelectionRect*> used_selection_rects;
 326
 327         SelectionRect* get_selection_rect(uint32_t id);
 328
 329         virtual void selection_click (GdkEventButton*);
 330
 331         bool _hidden;
 332         bool _has_state;
 333         NamePackingBits name_packing;
 334
 335         static void compute_controls_size_info ();
 336         static bool need_size_info;
 337
 338         void set_heights (uint32_t h);
 339         void color_handler ();
 340
 341         list<ArdourCanvas::SimpleLine*> feature_lines;
 342         ARDOUR::AnalysisFeatureList analysis_features;
 343         void reshow_feature_lines ();
 344
 345         void conditionally_add_to_selection ();
 346
 347 }; /* class TimeAxisView */
 348
 349 #endif /* __ardour_gtk_time_axis_h__ */
 350