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capela |
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// qsamplerInstrumentForm.ui.h |
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// |
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// ui.h extension file, included from the uic-generated form implementation. |
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/**************************************************************************** |
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Copyright (C) 2004-2006, rncbc aka Rui Nuno Capela. All rights reserved. |
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This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 2 |
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of the License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*****************************************************************************/ |
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#include "qsamplerAbout.h" |
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#include "qsamplerInstrument.h" |
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#include "qsamplerOptions.h" |
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#include "qsamplerChannel.h" |
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#include "qsamplerMainForm.h" |
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#include <qmessagebox.h> |
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#include <qfiledialog.h> |
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#include <qfileinfo.h> |
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#include <qlistbox.h> |
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// Needed for lroundf() |
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#include <math.h> |
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#ifdef __BORLANDC__ |
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static long lroundf ( float fval ) |
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{ |
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double fint = 0.0; |
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float frac = float(::modf(fval, &fint)); |
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long lint = long(fint); |
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if (frac >= +0.5f) |
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lint++; |
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else |
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if (frac <= -0.5f) |
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lint--; |
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return lint; |
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} |
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#endif |
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// Kind of constructor. |
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void qsamplerInstrumentForm::init (void) |
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{ |
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// Initialize locals. |
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m_pInstrument = NULL; |
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m_iDirtySetup = 0; |
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m_iDirtyCount = 0; |
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m_iDirtyName = 0; |
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// Try to restore normal window positioning. |
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adjustSize(); |
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} |
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// Kind of destructor. |
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void qsamplerInstrumentForm::destroy (void) |
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{ |
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} |
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// Channel dialog setup formal initializer. |
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void qsamplerInstrumentForm::setup ( qsamplerInstrument *pInstrument ) |
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{ |
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m_pInstrument = pInstrument; |
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m_iDirtySetup = 0; |
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m_iDirtyCount = 0; |
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m_iDirtyName = 0; |
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if (m_pInstrument == NULL) |
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return; |
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// Check if we're up and connected. |
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qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance(); |
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if (pMainForm == NULL) |
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return; |
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if (pMainForm->client() == NULL) |
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return; |
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qsamplerOptions *pOptions = pMainForm->options(); |
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if (pOptions == NULL) |
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return; |
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// It can be a brand new channel, remember? |
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bool bNew = (m_pInstrument->bank() < 0 || m_pInstrument->program() < 0); |
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if (!bNew) { |
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m_pInstrument->get(); |
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m_iDirtyName++; |
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} |
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// Avoid nested changes. |
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m_iDirtySetup++; |
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// Load combo box history... |
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pOptions->loadComboBoxHistory(InstrumentFileComboBox); |
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// Populate Engines list. |
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const char **ppszEngines = ::lscp_list_available_engines(pMainForm->client()); |
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if (ppszEngines) { |
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EngineNameComboBox->clear(); |
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for (int iEngine = 0; ppszEngines[iEngine]; iEngine++) |
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EngineNameComboBox->insertItem(ppszEngines[iEngine]); |
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} |
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else pMainForm->appendMessagesClient("lscp_list_available_engines"); |
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// Read proper instrument information, |
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// and populate the instrument form fields. |
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// Instrument bank/program... |
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int iBank = m_pInstrument->bank(); |
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int iProgram = m_pInstrument->program() + 1; |
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BankSpinBox->setValue(iBank); |
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ProgramSpinBox->setValue(iProgram); |
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// Spacial hack to avoid changes on the key... |
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if (bNew) { |
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BankSpinBox->setRange(0, 16383); |
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ProgramSpinBox->setRange(1, 128); |
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} else { |
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BankSpinBox->setRange(iBank, iBank); |
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ProgramSpinBox->setRange(iProgram, iProgram); |
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} |
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// Instrument name... |
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NameLineEdit->setText(m_pInstrument->name()); |
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// Engine name... |
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QString sEngineName = m_pInstrument->engineName(); |
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if (sEngineName.isEmpty() || bNew) |
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sEngineName = pOptions->sEngineName; |
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if (sEngineName.isEmpty()) |
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sEngineName = qsamplerChannel::noEngineName(); |
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if (EngineNameComboBox->listBox()->findItem(sEngineName, |
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Qt::ExactMatch | Qt::CaseSensitive) == NULL) { |
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EngineNameComboBox->insertItem(sEngineName); |
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} |
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EngineNameComboBox->setCurrentText(sEngineName); |
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// Instrument filename and index... |
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QString sInstrumentFile = m_pInstrument->instrumentFile(); |
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if (sInstrumentFile.isEmpty()) |
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sInstrumentFile = qsamplerChannel::noInstrumentName(); |
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InstrumentFileComboBox->setCurrentText(sInstrumentFile); |
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InstrumentNrComboBox->clear(); |
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InstrumentNrComboBox->insertStringList( |
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qsamplerChannel::getInstrumentList(sInstrumentFile, |
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pOptions->bInstrumentNames)); |
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InstrumentNrComboBox->setCurrentItem(m_pInstrument->instrumentNr()); |
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// Instrument volume.... |
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VolumeSpinBox->setValue(::lroundf(100.0f * m_pInstrument->volume())); |
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// Instrument load mode... |
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LoadModeComboBox->setCurrentItem(m_pInstrument->loadMode()); |
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// Done. |
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m_iDirtySetup--; |
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stabilizeForm(); |
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// Done. |
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m_iDirtySetup--; |
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stabilizeForm(); |
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} |
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// Special case for name change, |
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void qsamplerInstrumentForm::nameChanged ( const QString& /* sName */ ) |
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{ |
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if (m_iDirtySetup > 0) |
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return; |
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m_iDirtyName++; |
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changed(); |
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} |
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// Browse and open an instrument file. |
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void qsamplerInstrumentForm::openInstrumentFile (void) |
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{ |
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qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance(); |
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if (pMainForm == NULL) |
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return; |
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qsamplerOptions *pOptions = pMainForm->options(); |
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if (pOptions == NULL) |
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return; |
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// FIXME: the instrument file filters should be restricted, |
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// depending on the current engine. |
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QString sInstrumentFile = QFileDialog::getOpenFileName( |
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pOptions->sInstrumentDir, // Start here. |
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tr("Instrument files") + " (*.gig *.dls)", // Filter (GIG and DLS files) |
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this, 0, // Parent and name (none) |
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QSAMPLER_TITLE ": " + tr("Instrument files")// Caption. |
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); |
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if (sInstrumentFile.isEmpty()) |
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return; |
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InstrumentFileComboBox->setCurrentText(sInstrumentFile); |
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updateInstrumentName(); |
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} |
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// Refresh the actual instrument name. |
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void qsamplerInstrumentForm::updateInstrumentName (void) |
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{ |
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qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance(); |
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if (pMainForm == NULL) |
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return; |
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qsamplerOptions *pOptions = pMainForm->options(); |
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if (pOptions == NULL) |
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return; |
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// TODO: this better idea would be to use libgig |
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// to retrieve the REAL instrument names. |
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InstrumentNrComboBox->clear(); |
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InstrumentNrComboBox->insertStringList( |
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qsamplerChannel::getInstrumentList( |
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InstrumentFileComboBox->currentText(), |
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pOptions->bInstrumentNames) |
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); |
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instrumentNrChanged(); |
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} |
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// Special case for instrumnet index change, |
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void qsamplerInstrumentForm::instrumentNrChanged (void) |
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{ |
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if (m_iDirtySetup > 0) |
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return; |
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if (NameLineEdit->text().isEmpty() || m_iDirtyName == 0) { |
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NameLineEdit->setText(InstrumentNrComboBox->currentText()); |
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m_iDirtyName = 0; |
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} |
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changed(); |
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} |
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// Accept settings (OK button slot). |
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void qsamplerInstrumentForm::accept (void) |
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{ |
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if (m_pInstrument == NULL) |
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return; |
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qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance(); |
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if (pMainForm == NULL) |
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return; |
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if (pMainForm->client() == NULL) |
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return; |
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qsamplerOptions *pOptions = pMainForm->options(); |
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if (pOptions == NULL) |
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return; |
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if (m_iDirtyCount > 0) { |
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m_pInstrument->setBank(BankSpinBox->value()); |
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m_pInstrument->setProgram(ProgramSpinBox->value() - 1); |
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m_pInstrument->setName(NameLineEdit->text()); |
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m_pInstrument->setEngineName(EngineNameComboBox->currentText()); |
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m_pInstrument->setInstrumentFile(InstrumentFileComboBox->currentText()); |
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m_pInstrument->setInstrumentNr(InstrumentNrComboBox->currentItem()); |
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m_pInstrument->setVolume(0.01f * float(VolumeSpinBox->value())); |
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m_pInstrument->setLoadMode(LoadModeComboBox->currentItem()); |
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} |
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// Save default engine name, instrument directory and history... |
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pOptions->sInstrumentDir = QFileInfo(InstrumentFileComboBox->currentText()).dirPath(true); |
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pOptions->sEngineName = EngineNameComboBox->currentText(); |
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pOptions->saveComboBoxHistory(InstrumentFileComboBox); |
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// Just go with dialog acceptance. |
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QDialog::accept(); |
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} |
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// Reject settings (Cancel button slot). |
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void qsamplerInstrumentForm::reject (void) |
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{ |
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bool bReject = true; |
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// Check if there's any pending changes... |
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if (m_iDirtyCount > 0 && OkPushButton->isEnabled()) { |
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switch (QMessageBox::warning(this, |
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QSAMPLER_TITLE ": " + tr("Warning"), |
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tr("Some channel settings have been changed.\n\n" |
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"Do you want to apply the changes?"), |
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tr("Apply"), tr("Discard"), tr("Cancel"))) { |
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case 0: // Apply... |
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accept(); |
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return; |
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case 1: // Discard |
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break; |
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default: // Cancel. |
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bReject = false; |
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break; |
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} |
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} |
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if (bReject) |
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QDialog::reject(); |
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} |
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// Dirty up settings. |
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void qsamplerInstrumentForm::changed (void) |
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{ |
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if (m_iDirtySetup > 0) |
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return; |
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m_iDirtyCount++; |
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stabilizeForm(); |
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} |
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// Stabilize current form state. |
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void qsamplerInstrumentForm::stabilizeForm (void) |
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{ |
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bool bValid =!NameLineEdit->text().isEmpty(); |
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const QString& sPath = InstrumentFileComboBox->currentText(); |
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bValid = bValid && !sPath.isEmpty() && QFileInfo(sPath).exists(); |
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OkPushButton->setEnabled(m_iDirtyCount > 0 && bValid); |
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} |
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// end of qsamplerInstrumentForm.ui.h |