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// qsamplerChannelStrip.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, 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 |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*****************************************************************************/ |
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#include <qvalidator.h> |
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#include <qmessagebox.h> |
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#include <qfileinfo.h> |
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#include <qtooltip.h> |
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#include <qpopupmenu.h> |
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#include <math.h> |
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#include "qsamplerMainForm.h" |
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#include "qsamplerChannelForm.h" |
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#include "config.h" |
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// Kind of constructor. |
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void qsamplerChannelStrip::init (void) |
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{ |
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// Initialize locals. |
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m_pMainForm = NULL; |
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m_pChannel = NULL; |
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m_iDirtyChange = 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 qsamplerChannelStrip::destroy (void) |
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{ |
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// Destroy existing channel descriptor. |
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if (m_pChannel) |
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delete m_pChannel; |
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m_pChannel = NULL; |
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} |
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// Channel strip setup formal initializer. |
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void qsamplerChannelStrip::setup ( qsamplerMainForm *pMainForm, int iChannelID ) |
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{ |
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// Set main form reference. |
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m_pMainForm = pMainForm; |
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// Destroy any previous channel descriptor. |
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if (m_pChannel) |
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delete m_pChannel; |
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// Create a new one... |
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m_pChannel = new qsamplerChannel(pMainForm); |
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// And set appropriate settings. |
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if (m_pChannel) { |
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m_pChannel->setChannelID(iChannelID); |
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m_iDirtyChange = 0; |
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} |
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// Stabilize this around. |
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updateChannelInfo(); |
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} |
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// Channel secriptor accessor. |
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qsamplerChannel *qsamplerChannelStrip::channel (void) |
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{ |
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return m_pChannel; |
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} |
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// Messages view font accessors. |
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QFont qsamplerChannelStrip::displayFont (void) |
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{ |
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return EngineNameTextLabel->font(); |
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} |
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void qsamplerChannelStrip::setDisplayFont ( const QFont & font ) |
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{ |
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EngineNameTextLabel->setFont(font); |
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MidiPortChannelTextLabel->setFont(font); |
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InstrumentNameTextLabel->setFont(font); |
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InstrumentStatusTextLabel->setFont(font); |
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} |
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// Channel setup dialog slot. |
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void qsamplerChannelStrip::channelSetup (void) |
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{ |
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showChannelSetup(false); |
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} |
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// Channel setup dialog. |
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void qsamplerChannelStrip::showChannelSetup ( bool bNew ) |
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{ |
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qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(this); |
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if (pChannelForm) { |
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pChannelForm->setup(m_pChannel, bNew); |
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if (pChannelForm->exec()) { |
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updateChannelInfo(); |
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emit channelChanged(this); |
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} |
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delete pChannelForm; |
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} |
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} |
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// Update whole channel info state. |
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void qsamplerChannelStrip::updateChannelInfo (void) |
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{ |
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if (m_pChannel == NULL) |
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return; |
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// Update strip caption. |
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QString sText = tr("Channel %1").arg(m_pChannel->channelID()); |
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setCaption(sText); |
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ChannelSetupPushButton->setText(sText); |
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// Check if we're up and connected. |
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if (m_pChannel->client() == NULL) |
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return; |
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// Read actual channel information. |
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m_pChannel->updateChannelInfo(); |
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// Set some proper display values. |
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const QString sIndent = " "; |
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// Engine name... |
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if (m_pChannel->engineName().isEmpty()) |
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EngineNameTextLabel->setText(sIndent + tr("(No engine)")); |
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else |
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EngineNameTextLabel->setText(sIndent + m_pChannel->engineName()); |
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// Instrument name... |
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if (m_pChannel->instrumentFile().isEmpty()) |
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InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)")); |
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else |
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InstrumentNameTextLabel->setText(sIndent + QString("%1 [%2]") |
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.arg(QFileInfo(m_pChannel->instrumentFile()).fileName()).arg(m_pChannel->instrumentNr())); |
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// Instrument status... |
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int iInstrumentStatus = m_pChannel->instrumentStatus(); |
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if (iInstrumentStatus < 0) { |
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InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red); |
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InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus)); |
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} else { |
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InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green); |
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InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%"); |
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} |
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// MIDI Port/Channel... |
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if (m_pChannel->midiChannel() > 0) |
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MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel())); |
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else |
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MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort())); |
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// And update the both GUI volume elements. |
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updateChannelVolume(); |
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} |
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// Do the dirty volume change. |
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void qsamplerChannelStrip::updateChannelVolume (void) |
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{ |
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if (m_pChannel == NULL) |
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return; |
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// Convert... |
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#ifdef CONFIG_ROUND |
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int iVolume = (int) ::round(100.0 * m_pChannel->volume()); |
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#else |
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double fIPart = 0.0; |
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double fFPart = ::modf(100.0 * m_pChannel->volume(), &fIPart); |
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int iVolume = (int) fIPart; |
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if (fFPart >= +0.5) |
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iVolume++; |
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else |
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if (fFPart <= -0.5) |
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iVolume--; |
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#endif |
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// And clip... |
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if (iVolume < 0) |
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iVolume = 0; |
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// Flag it here, to avoid infinite recursion. |
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m_iDirtyChange++; |
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VolumeSlider->setValue(iVolume); |
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VolumeSpinBox->setValue(iVolume); |
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m_iDirtyChange--; |
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} |
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// Update whole channel usage state. |
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void qsamplerChannelStrip::updateChannelUsage (void) |
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{ |
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if (m_pChannel == NULL) |
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return; |
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if (m_pChannel->client() == NULL) |
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return; |
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// Conditionally update whole channel status info. |
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if (m_pChannel->instrumentStatus() >= 0 && m_pChannel->instrumentStatus() < 100) { |
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updateChannelInfo(); |
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// Once we get a complete instrument load, try a implied reset channel.... |
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if (m_pChannel->instrumentStatus() == 100) |
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m_pChannel->resetChannel(); |
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} |
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// Leave, if we still have an erroneus or incomplete instrument load. |
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if (m_pChannel->instrumentStatus() < 100) |
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return; |
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// Get current channel voice count. |
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int iVoiceCount = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID()); |
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// Get current stream count. |
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int iStreamCount = ::lscp_get_channel_stream_count(m_pChannel->client(), m_pChannel->channelID()); |
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// Get current channel buffer fill usage. |
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// As benno has suggested this is the percentage usage |
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// of the least filled buffer stream... |
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int iStreamUsage = ::lscp_get_channel_stream_usage(m_pChannel->client(), m_pChannel->channelID());; |
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// Update the GUI elements... |
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StreamUsageProgressBar->setProgress(iStreamUsage); |
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StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount)); |
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} |
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// Volume change slot. |
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void qsamplerChannelStrip::volumeChanged ( int iVolume ) |
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{ |
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if (m_pChannel == NULL) |
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return; |
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// Avoid recursion. |
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if (m_iDirtyChange > 0) |
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return; |
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// Convert and clip. |
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float fVolume = (float) iVolume / 100.0; |
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if (fVolume < 0.001) |
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fVolume = 0.0; |
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// Update the GUI elements. |
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if (m_pChannel->setVolume(fVolume)) { |
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updateChannelVolume(); |
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emit channelChanged(this); |
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} |
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} |
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// Context menu event handler. |
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void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent ) |
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{ |
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if (m_pMainForm == NULL) |
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return; |
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// We'll just show up the main form's edit menu. |
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m_pMainForm->contextMenuEvent(pEvent); |
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} |
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// Maximum volume slider accessors. |
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void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume ) |
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{ |
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m_iDirtyChange++; |
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VolumeSlider->setRange(0, iMaxVolume); |
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VolumeSpinBox->setRange(0, iMaxVolume); |
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m_iDirtyChange--; |
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} |
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// end of qsamplerChannelStrip.ui.h |