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