trunk/src/qsamplerChannelForm.ui.h

// qsamplerChannelForm.ui.h
//
// ui.h extension file, included from the uic-generated form implementation.
/****************************************************************************
   Copyright (C) 2004, rncbc aka Rui Nuno Capela. All rights reserved.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2
   of the License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*****************************************************************************/

#include <qvalidator.h>
#include <qmessagebox.h>
#include <qfiledialog.h>
#include <qfileinfo.h>
#include <qlistbox.h>

#include "qsamplerOptions.h"
#include "qsamplerChannelStrip.h"

#include "config.h"


// Kind of constructor.
void qsamplerChannelForm::init (void)
{
    // Initialize locals.
    m_pChannel = NULL;

    m_iDirtySetup = 0;
    m_iDirtyCount = 0;

    // Try to restore normal window positioning.
    adjustSize();
}


// Kind of destructor.
void qsamplerChannelForm::destroy (void)
{
}


// Channel dialog setup formal initializer.
void qsamplerChannelForm::setup ( qsamplerChannelStrip *pChannel )
{
    m_pChannel = pChannel;

    m_iDirtySetup = 0;
    m_iDirtyCount = 0;

    if (m_pChannel == NULL)
        return;

    setCaption(m_pChannel->caption());

    // Check if we're up and connected.
    if (m_pChannel->client() == NULL)
        return;

    qsamplerOptions *pOptions = m_pChannel->options();
    if (pOptions == NULL)
        return;

    // Avoid nested changes.
    m_iDirtySetup++;

    // Load combo box history...
    pOptions->loadComboBoxHistory(InstrumentFileComboBox);

    // Populate Engines list.
    const char **ppszEngines = ::lscp_get_available_engines(m_pChannel->client());
    if (ppszEngines) {
        EngineNameComboBox->clear();
        for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
            EngineNameComboBox->insertItem(ppszEngines[iEngine]);
    }
    else m_pChannel->appendMessagesClient("lscp_get_available_engines");

    // Populate Audio output type list.
    const char **ppszAudioDrivers = ::lscp_get_available_audio_drivers(m_pChannel->client());
    if (ppszAudioDrivers) {
        AudioDriverComboBox->clear();
        for (int iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++)
            AudioDriverComboBox->insertItem(ppszAudioDrivers[iAudioDriver]);
    }
    else m_pChannel->appendMessagesClient("lscp_get_available_audio_drivers");

    // Populate MIDI input type list.
    const char **ppszMidiDrivers = ::lscp_get_available_midi_drivers(m_pChannel->client());
    if (ppszMidiDrivers) {
        MidiDriverComboBox->clear();
        for (int iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++)
            MidiDriverComboBox->insertItem(ppszMidiDrivers[iMidiDriver]);
    }
    else m_pChannel->appendMessagesClient("lscp_get_available_midi_drivers");

    // Read proper channel information,
    // and populate the channel form fields.

    // Engine name...
    QString sEngineName = pChannel->engineName();
    if (sEngineName.isEmpty())
        sEngineName = tr("(No engine)");
    if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
        EngineNameComboBox->insertItem(sEngineName);
    EngineNameComboBox->setCurrentText(sEngineName);
    // Instrument filename and index...
    QString sInstrumentFile = pChannel->instrumentFile();
    if (sInstrumentFile.isEmpty())
        sInstrumentFile = tr("(No instrument)");
    InstrumentFileComboBox->setCurrentText(sInstrumentFile);
    InstrumentNrSpinBox->setValue(pChannel->instrumentNr());
    // MIDI input...
    const QString& sMidiDriver = pChannel->midiDriver();
    if (!sMidiDriver.isEmpty()) {
        if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
            MidiDriverComboBox->insertItem(sMidiDriver);
        MidiDriverComboBox->setCurrentText(sMidiDriver);
    }
    MidiPortSpinBox->setValue(pChannel->midiPort());
    MidiChannelSpinBox->setValue(pChannel->midiChannel());
    // Audio output...
    const QString& sAudioDriver = pChannel->audioDriver();
    if (!sAudioDriver.isEmpty()) {
        if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
            AudioDriverComboBox->insertItem(sAudioDriver);
        AudioDriverComboBox->setCurrentText(sAudioDriver);
    }
    // FIXME: Disable this while we don't know what to do.
    MidiPortTextLabel->setEnabled(false);
    MidiPortSpinBox->setEnabled(false);
    // Done.
    m_iDirtySetup--;
    stabilizeForm();
}


// Accept settings (OK button slot).
void qsamplerChannelForm::accept (void)
{
    if (m_pChannel == NULL)
        return;

    qsamplerOptions *pOptions = m_pChannel->options();
    if (pOptions == NULL)
        return;

    // We'll go for it!
    if (m_iDirtyCount > 0) {
        int iErrors = 0;
        // Audio output driver type...
        if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
            iErrors++;
        // MIDI input driver type...
        if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
            iErrors++;
        // MIDI input port number...
        if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
            iErrors++;
        // MIDI input channel...
        if (!m_pChannel->setMidiChannel(MidiChannelSpinBox->value()))
            iErrors++;
        // Engine name...
        if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
            iErrors++;
        // Instrument file and index...
        if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrSpinBox->value()))
            iErrors++;
        // Show error messages?
        if (iErrors > 0)
            m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
    }

    // Save default instrument directory and history...
    pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
    pOptions->saveComboBoxHistory(InstrumentFileComboBox);

    // Just go with dialog acceptance.
    QDialog::accept();
}


// Reject settings (Cancel button slot).
void qsamplerChannelForm::reject (void)
{
    bool bReject = true;

    // Check if there's any pending changes...
    if (m_iDirtyCount > 0) {
        switch (QMessageBox::warning(this, tr("Warning"),
            tr("Some channel settings have been changed.\n\n"
               "Do you want to apply the changes?"),
            tr("Apply"), tr("Discard"), tr("Cancel"))) {
        case 0:     // Apply...
            accept();
            return;
        case 1:     // Discard
            break;
        default:    // Cancel.
            bReject = false;
        }
    }

    if (bReject)
        QDialog::reject();
}


// Browse and open an instrument file.
void qsamplerChannelForm::openInstrumentFile (void)
{
    qsamplerOptions *pOptions = m_pChannel->options();
    if (pOptions == NULL)
        return;

    // FIXME: the instrument file filters should be restricted,
    // depending on the current engine.
    QString sInstrumentFile = QFileDialog::getOpenFileName(
            pOptions->sInstrumentDir,                   // Start here.
            tr("Instrument files") + " (*.gig *.dls)",  // Filter (GIG and DLS files)
            this, 0,                                    // Parent and name (none)
            tr("Instrument files")                      // Caption.
    );

    if (sInstrumentFile.isEmpty())
        return;

    InstrumentFileComboBox->setCurrentText(sInstrumentFile);
}


// Refresh the actual instrument name.
void qsamplerChannelForm::updateInstrumentName (void)
{
    // FIXME: A better idea would be to use libgig
    // to retrieve the REAL instrument name.
    InstrumentNameTextLabel->setText(QFileInfo(InstrumentFileComboBox->currentText()).fileName()
        + " [" + QString::number(InstrumentNrSpinBox->value()) + "]");

    optionsChanged();
}


// Dirty up settings.
void qsamplerChannelForm::optionsChanged (void)
{
    if (m_iDirtySetup > 0)
        return;

    m_iDirtyCount++;
    stabilizeForm();
}


// Stabilize current form state.
void qsamplerChannelForm::stabilizeForm (void)
{
    const QString& sFilename = InstrumentFileComboBox->currentText();
    OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
}


// end of qsamplerChannelForm.ui.h

1	// qsamplerChannelForm.ui.h
2	//
3	// ui.h extension file, included from the uic-generated form implementation.
4	/****************************************************************************
5	Copyright (C) 2004, 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 "qsamplerOptions.h"
30	#include "qsamplerChannelStrip.h"
31
32	#include "config.h"
33
34
35	// Kind of constructor.
36	void qsamplerChannelForm::init (void)
37	{
38	// Initialize locals.
39	m_pChannel = NULL;
40
41	m_iDirtySetup = 0;
42	m_iDirtyCount = 0;
43
44	// Try to restore normal window positioning.
45	adjustSize();
46	}
47
48
49	// Kind of destructor.
50	void qsamplerChannelForm::destroy (void)
51	{
52	}
53
54
55	// Channel dialog setup formal initializer.
56	void qsamplerChannelForm::setup ( qsamplerChannelStrip *pChannel )
57	{
58	m_pChannel = pChannel;
59
60	m_iDirtySetup = 0;
61	m_iDirtyCount = 0;
62
63	if (m_pChannel == NULL)
64	return;
65
66	setCaption(m_pChannel->caption());
67
68	// Check if we're up and connected.
69	if (m_pChannel->client() == NULL)
70	return;
71
72	qsamplerOptions *pOptions = m_pChannel->options();
73	if (pOptions == NULL)
74	return;
75
76	// Avoid nested changes.
77	m_iDirtySetup++;
78
79	// Load combo box history...
80	pOptions->loadComboBoxHistory(InstrumentFileComboBox);
81
82	// Populate Engines list.
83	const char **ppszEngines = ::lscp_get_available_engines(m_pChannel->client());
84	if (ppszEngines) {
85	EngineNameComboBox->clear();
86	for (int iEngine = 0; ppszEngines[iEngine]; iEngine++)
87	EngineNameComboBox->insertItem(ppszEngines[iEngine]);
88	}
89	else m_pChannel->appendMessagesClient("lscp_get_available_engines");
90
91	// Populate Audio output type list.
92	const char **ppszAudioDrivers = ::lscp_get_available_audio_drivers(m_pChannel->client());
93	if (ppszAudioDrivers) {
94	AudioDriverComboBox->clear();
95	for (int iAudioDriver = 0; ppszAudioDrivers[iAudioDriver]; iAudioDriver++)
96	AudioDriverComboBox->insertItem(ppszAudioDrivers[iAudioDriver]);
97	}
98	else m_pChannel->appendMessagesClient("lscp_get_available_audio_drivers");
99
100	// Populate MIDI input type list.
101	const char **ppszMidiDrivers = ::lscp_get_available_midi_drivers(m_pChannel->client());
102	if (ppszMidiDrivers) {
103	MidiDriverComboBox->clear();
104	for (int iMidiDriver = 0; ppszMidiDrivers[iMidiDriver]; iMidiDriver++)
105	MidiDriverComboBox->insertItem(ppszMidiDrivers[iMidiDriver]);
106	}
107	else m_pChannel->appendMessagesClient("lscp_get_available_midi_drivers");
108
109	// Read proper channel information,
110	// and populate the channel form fields.
111
112	// Engine name...
113	QString sEngineName = pChannel->engineName();
114	if (sEngineName.isEmpty())
115	sEngineName = tr("(No engine)");
116	if (EngineNameComboBox->listBox()->findItem(sEngineName, Qt::ExactMatch) == NULL)
117	EngineNameComboBox->insertItem(sEngineName);
118	EngineNameComboBox->setCurrentText(sEngineName);
119	// Instrument filename and index...
120	QString sInstrumentFile = pChannel->instrumentFile();
121	if (sInstrumentFile.isEmpty())
122	sInstrumentFile = tr("(No instrument)");
123	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
124	InstrumentNrSpinBox->setValue(pChannel->instrumentNr());
125	// MIDI input...
126	const QString& sMidiDriver = pChannel->midiDriver();
127	if (!sMidiDriver.isEmpty()) {
128	if (MidiDriverComboBox->listBox()->findItem(sMidiDriver, Qt::ExactMatch) == NULL)
129	MidiDriverComboBox->insertItem(sMidiDriver);
130	MidiDriverComboBox->setCurrentText(sMidiDriver);
131	}
132	MidiPortSpinBox->setValue(pChannel->midiPort());
133	MidiChannelSpinBox->setValue(pChannel->midiChannel());
134	// Audio output...
135	const QString& sAudioDriver = pChannel->audioDriver();
136	if (!sAudioDriver.isEmpty()) {
137	if (AudioDriverComboBox->listBox()->findItem(sAudioDriver, Qt::ExactMatch) == NULL)
138	AudioDriverComboBox->insertItem(sAudioDriver);
139	AudioDriverComboBox->setCurrentText(sAudioDriver);
140	}
141	// FIXME: Disable this while we don't know what to do.
142	MidiPortTextLabel->setEnabled(false);
143	MidiPortSpinBox->setEnabled(false);
144	// Done.
145	m_iDirtySetup--;
146	stabilizeForm();
147	}
148
149
150	// Accept settings (OK button slot).
151	void qsamplerChannelForm::accept (void)
152	{
153	if (m_pChannel == NULL)
154	return;
155
156	qsamplerOptions *pOptions = m_pChannel->options();
157	if (pOptions == NULL)
158	return;
159
160	// We'll go for it!
161	if (m_iDirtyCount > 0) {
162	int iErrors = 0;
163	// Audio output driver type...
164	if (!m_pChannel->setAudioDriver(AudioDriverComboBox->currentText()))
165	iErrors++;
166	// MIDI input driver type...
167	if (!m_pChannel->setMidiDriver(MidiDriverComboBox->currentText()))
168	iErrors++;
169	// MIDI input port number...
170	if (!m_pChannel->setMidiPort(MidiPortSpinBox->value()))
171	iErrors++;
172	// MIDI input channel...
173	if (!m_pChannel->setMidiChannel(MidiChannelSpinBox->value()))
174	iErrors++;
175	// Engine name...
176	if (!m_pChannel->loadEngine(EngineNameComboBox->currentText()))
177	iErrors++;
178	// Instrument file and index...
179	if (!m_pChannel->loadInstrument(InstrumentFileComboBox->currentText(), InstrumentNrSpinBox->value()))
180	iErrors++;
181	// Show error messages?
182	if (iErrors > 0)
183	m_pChannel->appendMessagesError(tr("Some channel settings could not be set.\n\nSorry."));
184	}
185
186	// Save default instrument directory and history...
187	pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true);
188	pOptions->saveComboBoxHistory(InstrumentFileComboBox);
189
190	// Just go with dialog acceptance.
191	QDialog::accept();
192	}
193
194
195	// Reject settings (Cancel button slot).
196	void qsamplerChannelForm::reject (void)
197	{
198	bool bReject = true;
199
200	// Check if there's any pending changes...
201	if (m_iDirtyCount > 0) {
202	switch (QMessageBox::warning(this, tr("Warning"),
203	tr("Some channel settings have been changed.\n\n"
204	"Do you want to apply the changes?"),
205	tr("Apply"), tr("Discard"), tr("Cancel"))) {
206	case 0: // Apply...
207	accept();
208	return;
209	case 1: // Discard
210	break;
211	default: // Cancel.
212	bReject = false;
213	}
214	}
215
216	if (bReject)
217	QDialog::reject();
218	}
219
220
221	// Browse and open an instrument file.
222	void qsamplerChannelForm::openInstrumentFile (void)
223	{
224	qsamplerOptions *pOptions = m_pChannel->options();
225	if (pOptions == NULL)
226	return;
227
228	// FIXME: the instrument file filters should be restricted,
229	// depending on the current engine.
230	QString sInstrumentFile = QFileDialog::getOpenFileName(
231	pOptions->sInstrumentDir, // Start here.
232	tr("Instrument files") + " (.gig .dls)", // Filter (GIG and DLS files)
233	this, 0, // Parent and name (none)
234	tr("Instrument files") // Caption.
235	);
236
237	if (sInstrumentFile.isEmpty())
238	return;
239
240	InstrumentFileComboBox->setCurrentText(sInstrumentFile);
241	}
242
243
244	// Refresh the actual instrument name.
245	void qsamplerChannelForm::updateInstrumentName (void)
246	{
247	// FIXME: A better idea would be to use libgig
248	// to retrieve the REAL instrument name.
249	InstrumentNameTextLabel->setText(QFileInfo(InstrumentFileComboBox->currentText()).fileName()
250	+ " [" + QString::number(InstrumentNrSpinBox->value()) + "]");
251
252	optionsChanged();
253	}
254
255
256
257	// Dirty up settings.
258	void qsamplerChannelForm::optionsChanged (void)
259	{
260	if (m_iDirtySetup > 0)
261	return;
262
263	m_iDirtyCount++;
264	stabilizeForm();
265	}
266
267
268	// Stabilize current form state.
269	void qsamplerChannelForm::stabilizeForm (void)
270	{
271	const QString& sFilename = InstrumentFileComboBox->currentText();
272	OkPushButton->setEnabled(m_iDirtyCount > 0 && !sFilename.isEmpty() && QFileInfo(sFilename).exists());
273	}
274
275
276	// end of qsamplerChannelForm.ui.h
277