/[svn]/qsampler/trunk/src/qsamplerChannelForm.ui.h
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Contents of /qsampler/trunk/src/qsamplerChannelForm.ui.h

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Revision 391 - (show annotations) (download) (as text)
Fri Feb 18 10:28:45 2005 UTC (15 years, 1 month ago) by capela
File MIME type: text/x-c++hdr
File size: 10326 byte(s)
* Drag-and-drop of instrument files now fixed.

1 // qsamplerChannelForm.ui.h
2 //
3 // ui.h extension file, included from the uic-generated form implementation.
4 /****************************************************************************
5 Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved.
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 <qvalidator.h>
24 #include <qmessagebox.h>
25 #include <qfiledialog.h>
26 #include <qfileinfo.h>
27 #include <qlistbox.h>
28
29 #include "config.h"
30
31
32 // Kind of constructor.
33 void qsamplerChannelForm::init (void)
34 {
35 // Initialize locals.
36 m_pChannel = NULL;
37
38 m_iDirtySetup = 0;
39 m_iDirtyCount = 0;
40
41 // Try to restore normal window positioning.
42 adjustSize();
43 }
44
45
46 // Kind of destructor.
47 void qsamplerChannelForm::destroy (void)
48 {
49 }
50
51
52 // Channel dialog setup formal initializer.
53 void qsamplerChannelForm::setup ( qsamplerChannel *pChannel )
54 {
55 m_pChannel = pChannel;
56
57 m_iDirtySetup = 0;
58 m_iDirtyCount = 0;
59
60 if (m_pChannel == NULL)
61 return;
62
63 // It can be a brand new channel, remember?
64 bool bNew = (m_pChannel->channelID() < 0);
65 setCaption(m_pChannel->channelName());
66
67 // Check if we're up and connected.
68 if (m_pChannel->client() == NULL)
69 return;
70
71 qsamplerOptions *pOptions = m_pChannel->options();
72 if (pOptions == NULL)
73 return;
74
75 // Avoid nested changes.
76 m_iDirtySetup++;
77
78 // Load combo box history...
79 pOptions->loadComboBoxHistory(InstrumentFileComboBox);
80
81 // Populate Engines list.
82 const char **ppszEngines = ::lscp_get_available_engines(m_pChannel->client());
83 if (ppszEngines) {
84 EngineNameComboBox->clear();
85 for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
86 EngineNameComboBox->insertItem(ppszEngines[iEngine]);
87 }
88 else m_pChannel->appendMessagesClient("lscp_get_available_engines");
89
90 // Populate Audio output type list.
91 const char **ppszAudioDrivers = ::lscp_get_available_audio_drivers(m_pChannel->client());
92 if (ppszAudioDrivers) {
93 AudioDriverComboBox->clear();
94 for (int iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++)
95 AudioDriverComboBox->insertItem(ppszAudioDrivers[iAudioDriver]);
96 }
97 else m_pChannel->appendMessagesClient("lscp_get_available_audio_drivers");
98
99 // Populate MIDI input type list.
100 const char **ppszMidiDrivers = ::lscp_get_available_midi_drivers(m_pChannel->client());
101 if (ppszMidiDrivers) {
102 MidiDriverComboBox->clear();
103 for (int iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++)
104 MidiDriverComboBox->insertItem(ppszMidiDrivers[iMidiDriver]);
105 }
106 else m_pChannel->appendMessagesClient("lscp_get_available_midi_drivers");
107
108 // Read proper channel information,
109 // and populate the channel form fields.
110
111 // Engine name...
112 QString sEngineName = pChannel->engineName();
113 if (sEngineName.isEmpty() && bNew)
114 sEngineName = pOptions->sEngineName;
115 if (sEngineName.isEmpty())
116 sEngineName = qsamplerChannel::noEngineName();
117 if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
118 EngineNameComboBox->insertItem(sEngineName);
119 EngineNameComboBox->setCurrentText(sEngineName);
120 // Instrument filename and index...
121 QString sInstrumentFile = pChannel->instrumentFile();
122 if (sInstrumentFile.isEmpty())
123 sInstrumentFile = qsamplerChannel::noInstrumentName();
124 InstrumentFileComboBox->setCurrentText(sInstrumentFile);
125 InstrumentNrComboBox->clear();
126 InstrumentNrComboBox->insertStringList(
127 qsamplerChannel::getInstrumentList(sInstrumentFile,
128 pOptions->bInstrumentNames));
129 InstrumentNrComboBox->setCurrentItem(pChannel->instrumentNr());
130 // MIDI input driver...
131 QString sMidiDriver = pChannel->midiDriver();
132 if (sMidiDriver.isEmpty() || bNew)
133 sMidiDriver = pOptions->sMidiDriver;
134 if (!sMidiDriver.isEmpty()) {
135 if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
136 MidiDriverComboBox->insertItem(sMidiDriver);
137 MidiDriverComboBox->setCurrentText(sMidiDriver);
138 }
139 // MIDI input port...
140 MidiPortSpinBox->setValue(pChannel->midiPort());
141 // MIDI input channel...
142 int iMidiChannel = pChannel->midiChannel();
143 // When new, try to suggest a sensible MIDI channel...
144 if (iMidiChannel < 0)
145 iMidiChannel = (::lscp_get_channels(m_pChannel->client()) % 16);
146 MidiChannelComboBox->setCurrentItem(iMidiChannel);
147 // Audio output driver...
148 QString sAudioDriver = pChannel->audioDriver();
149 if (sAudioDriver.isEmpty() || bNew)
150 sAudioDriver = pOptions->sAudioDriver;
151 if (!sAudioDriver.isEmpty()) {
152 if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
153 AudioDriverComboBox->insertItem(sAudioDriver);
154 AudioDriverComboBox->setCurrentText(sAudioDriver);
155 }
156 // As convenient, make it ready on stabilizeForm() for
157 // prompt acceptance, if we got the minimum required...
158 if (bNew && sEngineName != qsamplerChannel::noEngineName() &&
159 sInstrumentFile != qsamplerChannel::noInstrumentName())
160 m_iDirtyCount++;
161 // Done.
162 m_iDirtySetup--;
163 stabilizeForm();
164 }
165
166
167 // Accept settings (OK button slot).
168 void qsamplerChannelForm::accept (void)
169 {
170 if (m_pChannel == NULL)
171 return;
172
173 qsamplerOptions *pOptions = m_pChannel->options();
174 if (pOptions == NULL)
175 return;
176
177 // We'll go for it!
178 if (m_iDirtyCount > 0) {
179 int iErrors = 0;
180 // Are we a new channel?
181 if (!m_pChannel->addChannel())
182 iErrors++;
183 // Audio output driver type...
184 if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
185 iErrors++;
186 // MIDI input driver type...
187 if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
188 iErrors++;
189 // MIDI input port number...
190 if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
191 iErrors++;
192 // MIDI input channel...
193 if (!m_pChannel->setMidiChannel(MidiChannelComboBox->currentItem()))
194 iErrors++;
195 // Engine name...
196 if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
197 iErrors++;
198 // Instrument file and index...
199 if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrComboBox->currentItem()))
200 iErrors++;
201 // Show error messages?
202 if (iErrors > 0)
203 m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
204 }
205
206 // Save default engine name, instrument directory and history...
207 pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
208 pOptions->sEngineName = EngineNameComboBox->currentText();
209 pOptions->sAudioDriver = AudioDriverComboBox->currentText();
210 pOptions->sMidiDriver = MidiDriverComboBox->currentText();
211 pOptions->saveComboBoxHistory(InstrumentFileComboBox);
212
213 // Just go with dialog acceptance.
214 QDialog::accept();
215 }
216
217
218 // Reject settings (Cancel button slot).
219 void qsamplerChannelForm::reject (void)
220 {
221 bool bReject = true;
222
223 // Check if there's any pending changes...
224 if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) {
225 switch (QMessageBox::warning(this, tr("Warning"),
226 tr("Some channel settings have been changed.\n\n"
227 "Do you want to apply the changes?"),
228 tr("Apply"), tr("Discard"), tr("Cancel"))) {
229 case 0: // Apply...
230 accept();
231 return;
232 case 1: // Discard
233 break;
234 default: // Cancel.
235 bReject = false;
236 }
237 }
238
239 if (bReject)
240 QDialog::reject();
241 }
242
243
244 // Browse and open an instrument file.
245 void qsamplerChannelForm::openInstrumentFile (void)
246 {
247 qsamplerOptions *pOptions = m_pChannel->options();
248 if (pOptions == NULL)
249 return;
250
251 // FIXME: the instrument file filters should be restricted,
252 // depending on the current engine.
253 QString sInstrumentFile = QFileDialog::getOpenFileName(
254 pOptions->sInstrumentDir, // Start here.
255 tr("Instrument files") + " (*.gig *.dls)", // Filter (GIG and DLS files)
256 this, 0, // Parent and name (none)
257 tr("Instrument files") // Caption.
258 );
259
260 if (sInstrumentFile.isEmpty())
261 return;
262
263 InstrumentFileComboBox->setCurrentText(sInstrumentFile);
264 }
265
266
267 // Refresh the actual instrument name.
268 void qsamplerChannelForm::updateInstrumentName (void)
269 {
270 qsamplerOptions *pOptions = m_pChannel->options();
271 if (pOptions == NULL)
272 return;
273
274 // Finally this better idea would be to use libgig
275 // to retrieve the REAL instrument names.
276 InstrumentNrComboBox->clear();
277 InstrumentNrComboBox->insertStringList(
278 qsamplerChannel::getInstrumentList(
279 InstrumentFileComboBox->currentText(),
280 pOptions->bInstrumentNames)
281 );
282
283 optionsChanged();
284 }
285
286
287
288 // Dirty up settings.
289 void qsamplerChannelForm::optionsChanged (void)
290 {
291 if (m_iDirtySetup > 0)
292 return;
293
294 m_iDirtyCount++;
295 stabilizeForm();
296 }
297
298
299 // Stabilize current form state.
300 void qsamplerChannelForm::stabilizeForm (void)
301 {
302 const QString& sFilename = InstrumentFileComboBox->currentText();
303 OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
304 }
305
306
307 // end of qsamplerChannelForm.ui.h
308

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