/[svn]/qsampler/trunk/src/qsamplerInstrumentList.cpp
ViewVC logotype

Contents of /qsampler/trunk/src/qsamplerInstrumentList.cpp

Parent Directory Parent Directory | Revision Log Revision Log


Revision 2071 - (show annotations) (download)
Mon Mar 15 18:21:28 2010 UTC (14 years ago) by capela
File size: 10647 byte(s)
* Maybe fixed instrument list view/model for Qt >= 4.6, at last.

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 const Instrument *pInstr
83 = static_cast<Instrument *> (index.internalPointer());
84
85 if (pInstr && role == Qt::DisplayRole) {
86 switch (index.column()) {
87 case 0: return pInstr->name();
88 case 1: return QVariant::fromValue(pInstr->map());
89 case 2: return QVariant::fromValue(pInstr->bank());
90 case 3: return QVariant::fromValue(pInstr->prog() + 1);
91 case 4: return pInstr->engineName();
92 case 5: return pInstr->instrumentFile();
93 case 6: return QVariant::fromValue(pInstr->instrumentNr());
94 case 7: return QString::number(pInstr->volume() * 100.0) + " %";
95 case 8: {
96 switch (pInstr->loadMode()) {
97 case 3: return tr("Persistent");
98 case 2: return tr("On Demand Hold");
99 case 1: return tr("On Demand");
100 }
101 }
102 default:
103 break;
104 }
105 }
106
107 return QVariant();
108 }
109
110
111 QModelIndex InstrumentListModel::index (
112 int row, int col, const QModelIndex& /*parent*/ ) const
113 {
114 const Instrument *pInstr = NULL;
115
116 if (m_iMidiMap == LSCP_MIDI_MAP_ALL) {
117 int nrows = 0;
118 InstrumentMap::const_iterator itMap = m_instruments.constBegin();
119 for ( ; itMap != m_instruments.constEnd(); ++itMap) {
120 const InstrumentList& list = *itMap;
121 nrows += list.size();
122 if (row < nrows) {
123 pInstr = list.at(row + list.size() - nrows);
124 break;
125 }
126 }
127 } else {
128 // Resolve MIDI instrument map...
129 InstrumentMap::const_iterator itMap = m_instruments.find(m_iMidiMap);
130 if (itMap != m_instruments.constEnd()) {
131 const InstrumentList& list = *itMap;
132 if (row < list.size())
133 pInstr = list.at(row);
134 }
135 }
136
137 if (pInstr)
138 return createIndex(row, col, (void *) pInstr);
139 else
140 return QModelIndex();
141 }
142
143
144 QModelIndex InstrumentListModel::parent ( const QModelIndex& /*child*/ ) const
145 {
146 return QModelIndex();
147 }
148
149
150 QVariant InstrumentListModel::headerData (
151 int section, Qt::Orientation orientation, int role ) const
152 {
153 if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
154 switch (section) {
155 case 0: return tr("Name");
156 case 1: return tr("Map");
157 case 2: return tr("Bank");
158 case 3: return tr("Prog");
159 case 4: return tr("Engine");
160 case 5: return tr("File");
161 case 6: return tr("Nr");
162 case 7: return tr("Vol");
163 case 8: return tr("Mode");
164 }
165 }
166
167 return QAbstractItemModel::headerData(section, orientation, role);
168 }
169
170
171 void InstrumentListModel::setMidiMap ( int iMidiMap )
172 {
173 if (iMidiMap < 0)
174 iMidiMap = LSCP_MIDI_MAP_ALL;
175
176 m_iMidiMap = iMidiMap;
177 }
178
179
180 int InstrumentListModel::midiMap (void) const
181 {
182 return m_iMidiMap;
183 }
184
185
186 const Instrument *InstrumentListModel::addInstrument (
187 int iMap, int iBank, int iProg )
188 {
189 // Check it there's already one instrument item
190 // with the very same key (bank, program);
191 // if yes, just remove it without prejudice...
192 InstrumentList& list = m_instruments[iMap];
193
194 int i = 0;
195 for ( ; 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 for (i = 0; i < list.size(); ++i) {
206 const Instrument *pInstr = list.at(i);
207 if (iBank < pInstr->bank()
208 || (iBank == pInstr->bank() && iProg < pInstr->prog())) {
209 break;
210 }
211 }
212
213 Instrument *pInstr = new Instrument(iMap, iBank, iProg);
214 if (pInstr->getInstrument()) {
215 list.insert(i, pInstr);
216 } else {
217 delete pInstr;
218 pInstr = NULL;
219 }
220
221 return pInstr;
222 }
223
224
225 void InstrumentListModel::removeInstrument ( Instrument *pInstrument )
226 {
227 const int iMap = pInstrument->map();
228
229 if (m_instruments.contains(iMap)) {
230 InstrumentList& list = m_instruments[iMap];
231 for (int i = 0; i < list.size(); ++i) {
232 if (pInstrument == list.at(i)) {
233 delete pInstrument;
234 list.removeAt(i);
235 break;
236 }
237 }
238 }
239 }
240
241
242 void InstrumentListModel::updateInstrument ( Instrument *pInstrument )
243 {
244 pInstrument->getInstrument();
245 }
246
247
248 // Reposition the instrument in the model (called when map/bank/prg changed)
249 void InstrumentListModel::resortInstrument ( Instrument *pInstrument )
250 {
251 const int iMap = pInstrument->map();
252 const int iBank = pInstrument->bank();
253 const int iProg = pInstrument->prog();
254
255 // Remove given instrument from its current list...
256 removeInstrument(pInstrument);
257
258 // Re-add the instrument...
259 addInstrument(iMap, iBank, iProg);
260 }
261
262
263 void InstrumentListModel::refresh (void)
264 {
265 MainForm *pMainForm = MainForm::getInstance();
266 if (pMainForm == NULL)
267 return;
268 if (pMainForm->client() == NULL)
269 return;
270
271 QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
272
273 clear();
274
275 // Load the whole bunch of instrument items...
276 lscp_midi_instrument_t *pInstrs
277 = ::lscp_list_midi_instruments(pMainForm->client(), m_iMidiMap);
278 for (int iInstr = 0; pInstrs && pInstrs[iInstr].map >= 0; ++iInstr) {
279 const int iMap = pInstrs[iInstr].map;
280 const int iBank = pInstrs[iInstr].bank;
281 const int iProg = pInstrs[iInstr].prog;
282 addInstrument(iMap, iBank, iProg);
283 // Try to keep it snappy :)
284 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
285 }
286
287 QApplication::restoreOverrideCursor();
288
289 if (pInstrs == NULL && ::lscp_client_get_errno(pMainForm->client())) {
290 pMainForm->appendMessagesClient("lscp_list_midi_instruments");
291 pMainForm->appendMessagesError(
292 tr("Could not get current list of MIDI instrument mappings.\n\nSorry."));
293 }
294 }
295
296 void InstrumentListModel::beginReset (void)
297 {
298 #if QT_VERSION >= 0x040600
299 QAbstractItemModel::beginResetModel();
300 #endif
301 }
302
303 void InstrumentListModel::endReset (void)
304 {
305 #if QT_VERSION >= 0x040600
306 QAbstractItemModel::endResetModel();
307 #else
308 QAbstractItemModel::reset();
309 #endif
310 }
311
312
313 // Map clear.
314 void InstrumentListModel::clear (void)
315 {
316 InstrumentMap::iterator itMap = m_instruments.begin();
317 for ( ; itMap != m_instruments.end(); ++itMap) {
318 InstrumentList& list = itMap.value();
319 qDeleteAll(list);
320 list.clear();
321 }
322
323 m_instruments.clear();
324 }
325
326
327 //-------------------------------------------------------------------------
328 // QSampler::InstrumentListView - list view for MIDI prog mappings
329 //
330
331 // Constructor.
332 InstrumentListView::InstrumentListView ( QWidget *pParent )
333 : QTreeView(pParent)
334 {
335 m_pListModel = new InstrumentListModel(this);
336
337 QTreeView::setModel(m_pListModel);
338
339 QTreeView::setRootIsDecorated(false);
340 QTreeView::setUniformRowHeights(true);
341 QTreeView::setAlternatingRowColors(true);
342 QTreeView::setSelectionBehavior(QAbstractItemView::SelectRows);
343 QTreeView::setSelectionMode(QAbstractItemView::SingleSelection);
344 QTreeView::setItemsExpandable(false);
345
346 QHeaderView *pHeader = QTreeView::header();
347 pHeader->setDefaultAlignment(Qt::AlignLeft);
348 pHeader->setMovable(false);
349 pHeader->setStretchLastSection(true);
350 pHeader->resizeSection(0, 120); // Name
351 QTreeView::resizeColumnToContents(1); // Map
352 QTreeView::resizeColumnToContents(2); // Bank
353 QTreeView::resizeColumnToContents(3); // Prog
354 QTreeView::resizeColumnToContents(4); // Engine
355 pHeader->resizeSection(5, 240); // File
356 QTreeView::resizeColumnToContents(6); // Nr
357 pHeader->resizeSection(7, 60); // Vol
358 }
359
360
361 // Destructor.
362 InstrumentListView::~InstrumentListView (void)
363 {
364 delete m_pListModel;
365 }
366
367
368 void InstrumentListView::setMidiMap ( int iMidiMap )
369 {
370 m_pListModel->setMidiMap(iMidiMap);
371 }
372
373
374 int InstrumentListView::midiMap (void) const
375 {
376 return m_pListModel->midiMap();
377 }
378
379
380 const Instrument *InstrumentListView::addInstrument (
381 int iMap, int iBank, int iProg )
382 {
383 m_pListModel->beginReset();
384 const Instrument *pInstrument
385 = m_pListModel->addInstrument(iMap, iBank, iProg);
386 m_pListModel->endReset();
387
388 return pInstrument;
389 }
390
391
392 void InstrumentListView::removeInstrument ( Instrument *pInstrument )
393 {
394 m_pListModel->beginReset();
395 m_pListModel->removeInstrument(pInstrument);
396 m_pListModel->endReset();
397 }
398
399
400 void InstrumentListView::updateInstrument ( Instrument *pInstrument )
401 {
402 m_pListModel->beginReset();
403 m_pListModel->updateInstrument(pInstrument);
404 m_pListModel->endReset();
405 }
406
407
408 // Reposition the instrument in the model (called when map/bank/prg changed)
409 void InstrumentListView::resortInstrument ( Instrument *pInstrument )
410 {
411 m_pListModel->beginReset();
412 m_pListModel->resortInstrument(pInstrument);
413 m_pListModel->endReset();
414 }
415
416
417 // Refreshener.
418 void InstrumentListView::refresh (void)
419 {
420 m_pListModel->beginReset();
421 m_pListModel->refresh();
422 m_pListModel->endReset();
423 }
424
425
426 } // namespace QSampler
427
428
429 // end of qsamplerInstrumentList.cpp

  ViewVC Help
Powered by ViewVC