gtk2_ardour/canvas_patch_change.cc

   1 /*
   2     Copyright (C) 2000-2010 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 #include <iostream>
  21
  22 #include <boost/algorithm/string.hpp>
  23
  24 #include "pbd/stacktrace.h"
  25
  26 #include "gtkmm2ext/keyboard.h"
  27 #include "ardour/instrument_info.h"
  28 #include "midi++/midnam_patch.h"
  29
  30 #include "ardour_ui.h"
  31 #include "midi_region_view.h"
  32 #include "canvas_patch_change.h"
  33 #include "editor.h"
  34 #include "editor_drag.h"
  35
  36 using namespace Gnome::Canvas;
  37 using namespace MIDI::Name;
  38 using namespace Gtkmm2ext;
  39 using namespace std;
  40
  41 /** @param x x position in pixels.
  42  */
  43 CanvasPatchChange::CanvasPatchChange(
  44         MidiRegionView&                   region,
  45         Group&                            parent,
  46         const string&                     text,
  47         double                            height,
  48         double                            x,
  49         double                            y,
  50         ARDOUR::InstrumentInfo&           info,
  51         ARDOUR::MidiModel::PatchChangePtr patch,
  52         bool                              active_channel)
  53         : CanvasFlag(
  54                 region,
  55                 parent,
  56                 height,
  57                 (active_channel
  58                  ? ARDOUR_UI::config()->canvasvar_MidiPatchChangeOutline.get()
  59                  : ARDOUR_UI::config()->canvasvar_MidiPatchChangeInactiveChannelOutline.get()),
  60                 (active_channel
  61                  ? ARDOUR_UI::config()->canvasvar_MidiPatchChangeFill.get()
  62                  : ARDOUR_UI::config()->canvasvar_MidiPatchChangeInactiveChannelFill.get()),
  63                 x,
  64                 y)
  65         , _info (info)
  66         , _patch (patch)
  67         , _popup_initialized(false)
  68 {
  69         set_text (text);
  70 }
  71
  72 CanvasPatchChange::~CanvasPatchChange()
  73 {
  74 }
  75
  76 void
  77 CanvasPatchChange::initialize_popup_menus()
  78 {
  79         boost::shared_ptr<ChannelNameSet> channel_name_set = _info.get_patches (_patch->channel());
  80
  81         if (!channel_name_set) {
  82                 return;
  83         }
  84
  85         const ChannelNameSet::PatchBanks& patch_banks = channel_name_set->patch_banks();
  86
  87         if (patch_banks.size() > 1) {
  88                 // fill popup menu:
  89                 Gtk::Menu::MenuList& patch_bank_menus = _popup.items();
  90
  91                 for (ChannelNameSet::PatchBanks::const_iterator bank = patch_banks.begin();
  92                      bank != patch_banks.end();
  93                      ++bank) {
  94                         Gtk::Menu& patch_bank_menu = *manage(new Gtk::Menu());
  95
  96                         const PatchNameList& patches = (*bank)->patch_name_list();
  97                         Gtk::Menu::MenuList& patch_menus = patch_bank_menu.items();
  98
  99                         for (PatchNameList::const_iterator patch = patches.begin();
 100                              patch != patches.end();
 101                              ++patch) {
 102                                 std::string name = (*patch)->name();
 103                                 boost::replace_all (name, "_", " ");
 104
 105                                 patch_menus.push_back(
 106                                         Gtk::Menu_Helpers::MenuElem(
 107                                                 name,
 108                                                 sigc::bind(sigc::mem_fun(*this, &CanvasPatchChange::on_patch_menu_selected),
 109                                                            (*patch)->patch_primary_key())) );
 110                         }
 111
 112                         std::string name = (*bank)->name();
 113                         boost::replace_all (name, "_", " ");
 114
 115                         patch_bank_menus.push_back(
 116                                 Gtk::Menu_Helpers::MenuElem(
 117                                         name,
 118                                         patch_bank_menu) );
 119                 }
 120         } else {
 121                 /* only one patch bank, so make it the initial menu */
 122
 123                 const PatchNameList& patches = patch_banks.front()->patch_name_list();
 124                 Gtk::Menu::MenuList& patch_menus = _popup.items();
 125
 126                 for (PatchNameList::const_iterator patch = patches.begin();
 127                      patch != patches.end();
 128                      ++patch) {
 129                         std::string name = (*patch)->name();
 130                         boost::replace_all (name, "_", " ");
 131
 132                         patch_menus.push_back (
 133                                 Gtk::Menu_Helpers::MenuElem (
 134                                         name,
 135                                         sigc::bind (sigc::mem_fun(*this, &CanvasPatchChange::on_patch_menu_selected),
 136                                                     (*patch)->patch_primary_key())));
 137                 }
 138         }
 139 }
 140
 141 void
 142 CanvasPatchChange::on_patch_menu_selected(const PatchPrimaryKey& key)
 143 {
 144         _region.change_patch_change (*this, key);
 145 }
 146
 147 static bool
 148 in_edit_mode(Editor* editor)
 149 {
 150         return (editor->internal_editing() &&
 151                 (editor->current_mouse_mode() == Editing::MouseObject ||
 152                  editor->current_mouse_mode() == Editing::MouseDraw));
 153 }
 154
 155 bool
 156 CanvasPatchChange::on_event (GdkEvent* ev)
 157 {
 158         /* XXX: icky dcast */
 159         Editor* e = dynamic_cast<Editor*> (&_region.get_time_axis_view().editor());
 160
 161         if (!in_edit_mode(e)) {
 162                 return false;
 163         }
 164
 165         switch (ev->type) {
 166         case GDK_BUTTON_PRESS:
 167                 if (Gtkmm2ext::Keyboard::is_delete_event (&ev->button)) {
 168
 169                         _region.delete_patch_change (this);
 170                         return true;
 171
 172                 } else if (Gtkmm2ext::Keyboard::is_edit_event (&ev->button)) {
 173
 174                         _region.edit_patch_change (this);
 175                         return true;
 176
 177                 } else if (ev->button.button == 1) {
 178                         e->drags()->set (new PatchChangeDrag (e, this, &_region), ev);
 179                         return true;
 180                 }
 181
 182                 if (ev->button.button == 3) {
 183                         if (!_popup_initialized) {
 184                                 initialize_popup_menus();
 185                                 _popup_initialized = true;
 186                         }
 187                         if (!_popup.items().empty()) {
 188                                 _popup.popup(ev->button.button, ev->button.time);
 189                         }
 190                         return true;
 191                 }
 192                 break;
 193
 194         case GDK_KEY_PRESS:
 195                 switch (ev->key.keyval) {
 196                 case GDK_Up:
 197                 case GDK_KP_Up:
 198                 case GDK_uparrow:
 199                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 200                                 _region.previous_bank (*this);
 201                         } else {
 202                                 _region.previous_patch (*this);
 203                         }
 204                         break;
 205                 case GDK_Down:
 206                 case GDK_KP_Down:
 207                 case GDK_downarrow:
 208                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 209                                 _region.next_bank (*this);
 210                         } else {
 211                                 _region.next_patch (*this);
 212                         }
 213                         break;
 214                 case GDK_Delete:
 215                 case GDK_BackSpace:
 216                         _region.delete_patch_change (this);
 217                         break;
 218                 default:
 219                         break;
 220                 }
 221                 break;
 222
 223         case GDK_SCROLL:
 224                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 225                         if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
 226                                 _region.previous_bank (*this);
 227                         } else {
 228                                 _region.previous_patch (*this);
 229                         }
 230                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 231                                 if (Keyboard::modifier_state_contains (ev->scroll.state, Keyboard::PrimaryModifier)) {
 232                                         _region.next_bank (*this);
 233                                 } else {
 234                                         _region.next_patch (*this);
 235                                 }
 236                 }
 237                 return true;
 238
 239         case GDK_ENTER_NOTIFY:
 240                 _region.patch_entered (this);
 241                 return true;
 242                 break;
 243
 244         case GDK_LEAVE_NOTIFY:
 245                 _region.patch_left (this);
 246                 return true;
 247                 break;
 248
 249         default:
 250                 break;
 251         }
 252
 253         return false;
 254 }