/[svn]/qsampler/trunk/src/qsamplerInstrumentList.cpp
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Contents of /qsampler/trunk/src/qsamplerInstrumentList.cpp

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Revision 2065 - (show annotations) (download)
Sat Mar 13 12:44:15 2010 UTC (9 years, 10 months ago) by capela
File size: 10528 byte(s)
* Automatic crash-dump reports, debugger stack-traces (gdb), back-
  traces, whatever, are being introduced as a brand new configure
  option (--enable-stacktrace) and default enabled on debug build
  targets (--enable-debug).

1 // qsamplerInstrumentList.cpp
2 //
3 /****************************************************************************
4 Copyright (C) 2003-2010, rncbc aka Rui Nuno Capela. All rights reserved.
5 Copyright (C) 2007, Christian Schoenebeck
6
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; either version 2
10 of the License, or (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
21 *****************************************************************************/
22
23 #include "qsamplerAbout.h"
24 #include "qsamplerInstrumentList.h"
25
26 #include "qsamplerInstrument.h"
27
28 #include "qsamplerOptions.h"
29 #include "qsamplerMainForm.h"
30
31 #include <QApplication>
32 #include <QCursor>
33
34
35 namespace QSampler {
36
37 //-------------------------------------------------------------------------
38 // QSampler::InstrumentListModel - data model for MIDI prog mappings
39 //
40
41 InstrumentListModel::InstrumentListModel ( QObject *pParent )
42 : QAbstractItemModel(pParent), m_iMidiMap(LSCP_MIDI_MAP_ALL)
43 {
44 QAbstractItemModel::reset();
45 }
46
47 InstrumentListModel::~InstrumentListModel (void)
48 {
49 clear();
50 }
51
52
53 int InstrumentListModel::rowCount ( const QModelIndex& /*parent*/) const
54 {
55 int nrows = 0;
56
57 if (m_iMidiMap == LSCP_MIDI_MAP_ALL) {
58 InstrumentMap::const_iterator itMap = m_instruments.constBegin();
59 for ( ; itMap != m_instruments.constEnd(); ++itMap)
60 nrows += (*itMap).size();
61 } else {
62 InstrumentMap::const_iterator itMap = m_instruments.find(m_iMidiMap);
63 if (itMap != m_instruments.constEnd())
64 nrows += (*itMap).size();
65 }
66
67 return nrows;
68 }
69
70
71 int InstrumentListModel::columnCount ( const QModelIndex& /*parent*/) const
72 {
73 return 9;
74 }
75
76
77 QVariant InstrumentListModel::data (
78 const QModelIndex &index, int role ) const
79 {
80 if (!index.isValid())
81 return QVariant();
82
83 const Instrument *pInstr
84 = static_cast<Instrument *> (index.internalPointer());
85
86 if (pInstr && role == Qt::DisplayRole) {
87 switch (index.column()) {
88 case 0: return pInstr->name();
89 case 1: return QVariant::fromValue(pInstr->map());
90 case 2: return QVariant::fromValue(pInstr->bank());
91 case 3: return QVariant::fromValue(pInstr->prog() + 1);
92 case 4: return pInstr->engineName();
93 case 5: return pInstr->instrumentFile();
94 case 6: return QVariant::fromValue(pInstr->instrumentNr());
95 case 7: return QString::number(pInstr->volume() * 100.0) + " %";
96 case 8: {
97 switch (pInstr->loadMode()) {
98 case 3: return tr("Persistent");
99 case 2: return tr("On Demand Hold");
100 case 1: return tr("On Demand");
101 }
102 }
103 default:
104 break;
105 }
106 }
107
108 return QVariant();
109 }
110
111
112 QModelIndex InstrumentListModel::index (
113 int row, int col, const QModelIndex& /*parent*/ ) const
114 {
115 const Instrument *pInstr = NULL;
116
117 if (m_iMidiMap == LSCP_MIDI_MAP_ALL) {
118 int nrows = 0;
119 InstrumentMap::const_iterator itMap = m_instruments.constBegin();
120 for ( ; itMap != m_instruments.constEnd(); ++itMap) {
121 const InstrumentList& list = *itMap;
122 nrows += list.size();
123 if (row < nrows) {
124 pInstr = list.at(row + list.size() - nrows);
125 break;
126 }
127 }
128 } else {
129 // Resolve MIDI instrument map...
130 InstrumentMap::const_iterator itMap = m_instruments.find(m_iMidiMap);
131 if (itMap != m_instruments.constEnd()) {
132 const InstrumentList& list = *itMap;
133 // resolve instrument in that map
134 if (row < list.size())
135 pInstr = list.at(row);
136 }
137 }
138
139 if (pInstr)
140 return createIndex(row, col, (void *) pInstr);
141 else
142 return QModelIndex();
143 }
144
145
146 QModelIndex InstrumentListModel::parent ( const QModelIndex& /*child*/ ) const
147 {
148 return QModelIndex();
149 }
150
151
152 QVariant InstrumentListModel::headerData (
153 int section, Qt::Orientation orientation, int role ) const
154 {
155 if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
156 switch (section) {
157 case 0: return tr("Name");
158 case 1: return tr("Map");
159 case 2: return tr("Bank");
160 case 3: return tr("Prog");
161 case 4: return tr("Engine");
162 case 5: return tr("File");
163 case 6: return tr("Nr");
164 case 7: return tr("Vol");
165 case 8: return tr("Mode");
166 }
167 }
168
169 return QAbstractItemModel::headerData(section, orientation, role);
170 }
171
172
173 void InstrumentListModel::setMidiMap ( int iMidiMap )
174 {
175 if (iMidiMap < 0)
176 iMidiMap = LSCP_MIDI_MAP_ALL;
177
178 m_iMidiMap = iMidiMap;
179 }
180
181
182 int InstrumentListModel::midiMap (void) const
183 {
184 return m_iMidiMap;
185 }
186
187
188 const Instrument *InstrumentListModel::addInstrument (
189 int iMap, int iBank, int iProg )
190 {
191 // Check it there's already one instrument item
192 // with the very same key (bank, program);
193 // if yes, just remove it without prejudice...
194 InstrumentList& list = m_instruments[iMap];
195 for (int i = 0; i < list.size(); ++i) {
196 const Instrument *pInstr = list.at(i);
197 if (pInstr->bank() == iBank && pInstr->prog() == iProg) {
198 delete pInstr;
199 list.removeAt(i);
200 break;
201 }
202 }
203
204 // Resolve the appropriate place, we keep the list sorted that way...
205 int i = 0;
206 for ( ; i < list.size(); ++i) {
207 const Instrument *pInstr = list.at(i);
208 if (iBank < pInstr->bank()
209 || (iBank == pInstr->bank() && iProg < pInstr->prog())) {
210 break;
211 }
212 }
213
214 Instrument *pInstr = new Instrument(iMap, iBank, iProg);
215 if (pInstr->getInstrument()) {
216 list.insert(i, pInstr);
217 } else {
218 delete pInstr;
219 pInstr = NULL;
220 }
221
222 return pInstr;
223 }
224
225
226 void InstrumentListModel::removeInstrument ( const Instrument *pInstrument )
227 {
228 const int iMap = pInstrument->map();
229 const int iBank = pInstrument->bank();
230 const int iProg = pInstrument->prog();
231
232 if (m_instruments.contains(iMap)) {
233 InstrumentList& list = m_instruments[iMap];
234 for (int i = 0; i < list.size(); ++i) {
235 const Instrument *pInstr = list.at(i);
236 if (pInstr->bank() == iBank && pInstr->prog() == iProg) {
237 delete pInstr;
238 list.removeAt(i);
239 break;
240 }
241 }
242 }
243 }
244
245
246 // Reposition the instrument in the model (called when map/bank/prg changed)
247 void InstrumentListModel::updateInstrument ( const Instrument *pInstrument )
248 {
249 const int iMap = pInstrument->map();
250 const int iBank = pInstrument->bank();
251 const int iProg = pInstrument->prog();
252
253 // Remove given instrument from its current list...
254 removeInstrument(pInstrument);
255
256 // Re-add the instrument...
257 addInstrument(iMap, iBank, iProg);
258 }
259
260
261 void InstrumentListModel::refresh (void)
262 {
263 MainForm *pMainForm = MainForm::getInstance();
264 if (pMainForm == NULL)
265 return;
266 if (pMainForm->client() == NULL)
267 return;
268
269 QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
270
271 clear();
272
273 // Load the whole bunch of instrument items...
274 lscp_midi_instrument_t *pInstrs
275 = ::lscp_list_midi_instruments(pMainForm->client(), m_iMidiMap);
276 for (int iInstr = 0; pInstrs && pInstrs[iInstr].map >= 0; ++iInstr) {
277 const int iMap = pInstrs[iInstr].map;
278 const int iBank = pInstrs[iInstr].bank;
279 const int iProg = pInstrs[iInstr].prog;
280 addInstrument(iMap, iBank, iProg);
281 // Try to keep it snappy :)
282 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
283 }
284
285 QApplication::restoreOverrideCursor();
286
287 if (pInstrs == NULL && ::lscp_client_get_errno(pMainForm->client())) {
288 pMainForm->appendMessagesClient("lscp_list_midi_instruments");
289 pMainForm->appendMessagesError(
290 tr("Could not get current list of MIDI instrument mappings.\n\nSorry."));
291 }
292 }
293
294 void InstrumentListModel::beginReset (void)
295 {
296 #if QT_VERSION >= 0x040600
297 QAbstractItemModel::beginResetModel();
298 #endif
299 }
300
301 void InstrumentListModel::endReset (void)
302 {
303 #if QT_VERSION >= 0x040600
304 QAbstractItemModel::endResetModel();
305 #else
306 QAbstractItemModel::reset();
307 #endif
308 }
309
310
311 // Map clear.
312 void InstrumentListModel::clear (void)
313 {
314 InstrumentMap::iterator itMap = m_instruments.begin();
315 for ( ; itMap != m_instruments.end(); ++itMap) {
316 InstrumentList& list = itMap.value();
317 qDeleteAll(list);
318 list.clear();
319 }
320
321 m_instruments.clear();
322 }
323
324
325 //-------------------------------------------------------------------------
326 // QSampler::InstrumentListView - list view for MIDI prog mappings
327 //
328
329 // Constructor.
330 InstrumentListView::InstrumentListView ( QWidget *pParent )
331 : QTreeView(pParent)
332 {
333 m_pListModel = new InstrumentListModel(this);
334
335 QTreeView::setModel(m_pListModel);
336
337 QTreeView::setRootIsDecorated(false);
338 QTreeView::setUniformRowHeights(true);
339 QTreeView::setAlternatingRowColors(true);
340 QTreeView::setSelectionBehavior(QAbstractItemView::SelectRows);
341 QTreeView::setSelectionMode(QAbstractItemView::SingleSelection);
342
343 QHeaderView *pHeader = QTreeView::header();
344 pHeader->setDefaultAlignment(Qt::AlignLeft);
345 pHeader->setMovable(false);
346 pHeader->setStretchLastSection(true);
347 pHeader->resizeSection(0, 120); // Name
348 QTreeView::resizeColumnToContents(1); // Map
349 QTreeView::resizeColumnToContents(2); // Bank
350 QTreeView::resizeColumnToContents(3); // Prog
351 QTreeView::resizeColumnToContents(4); // Engine
352 pHeader->resizeSection(5, 240); // File
353 QTreeView::resizeColumnToContents(6); // Nr
354 pHeader->resizeSection(7, 60); // Vol
355 }
356
357
358 // Destructor.
359 InstrumentListView::~InstrumentListView (void)
360 {
361 delete m_pListModel;
362 }
363
364
365 void InstrumentListView::setMidiMap ( int iMidiMap )
366 {
367 m_pListModel->setMidiMap(iMidiMap);
368 }
369
370
371 int InstrumentListView::midiMap (void) const
372 {
373 return m_pListModel->midiMap();
374 }
375
376
377 const Instrument *InstrumentListView::addInstrument (
378 int iMap, int iBank, int iProg )
379 {
380 m_pListModel->beginReset();
381 const Instrument *pInstrument
382 = m_pListModel->addInstrument(iMap, iBank, iProg);
383 m_pListModel->endReset();
384
385 return pInstrument;
386 }
387
388
389 void InstrumentListView::removeInstrument ( const Instrument *pInstrument )
390 {
391 m_pListModel->beginReset();
392 m_pListModel->removeInstrument(pInstrument);
393 m_pListModel->endReset();
394 }
395
396
397 // Reposition the instrument in the model (called when map/bank/prg changed)
398 void InstrumentListView::updateInstrument ( const Instrument *pInstrument )
399 {
400 m_pListModel->beginReset();
401 m_pListModel->updateInstrument(pInstrument);
402 m_pListModel->endReset();}
403
404
405 // Refreshener.
406 void InstrumentListView::refresh (void)
407 {
408 m_pListModel->beginReset();
409 m_pListModel->refresh();
410 m_pListModel->endReset();
411 }
412
413
414 } // namespace QSampler
415
416
417 // end of qsamplerInstrumentList.cpp

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