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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) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved. |
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|
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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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|
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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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|
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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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*****************************************************************************/ |
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|
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#include <qvalidator.h> |
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#include <qmessagebox.h> |
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#include <qdragobject.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 <qobjectlist.h> |
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|
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#include <math.h> |
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|
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#include "qsamplerMainForm.h" |
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#include "qsamplerChannelForm.h" |
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|
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#include "config.h" |
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|
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// Channel status/usage usage limit control. |
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#define QSAMPLER_ERROR_LIMIT 3 |
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#define QSAMPLER_ERROR_CYCLE 33 |
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|
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|
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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_pChannel = NULL; |
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m_iDirtyChange = 0; |
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m_iErrorCount = 0; |
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|
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// Try to restore normal window positioning. |
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adjustSize(); |
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} |
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|
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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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|
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|
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// Drag'n'drop file handler. |
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bool qsamplerChannelStrip::decodeDragFile ( const QMimeSource *pEvent, QString& sInstrumentFile ) |
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{ |
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if (m_pChannel == NULL) |
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return false; |
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|
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if (QTextDrag::canDecode(pEvent)) { |
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QString sText; |
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if (QTextDrag::decode(pEvent, sText)) { |
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QStringList files = QStringList::split('\n', sText); |
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for (QStringList::Iterator iter = files.begin(); iter != files.end(); iter++) { |
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*iter = (*iter).stripWhiteSpace().replace(QRegExp("^file:"), QString::null); |
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if (qsamplerChannel::isInstrumentFile(*iter)) { |
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sInstrumentFile = *iter; |
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return true; |
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} |
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} |
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} |
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} |
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// Fail. |
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return false; |
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} |
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|
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|
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// Window drag-n-drop event handlers. |
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void qsamplerChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent ) |
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{ |
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QString sInstrumentFile; |
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pDragEnterEvent->accept(decodeDragFile(pDragEnterEvent, sInstrumentFile)); |
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} |
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|
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|
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void qsamplerChannelStrip::dropEvent ( QDropEvent* pDropEvent ) |
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{ |
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QString sInstrumentFile; |
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|
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if (decodeDragFile(pDropEvent, sInstrumentFile)) { |
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// Go and set the dropped instrument filename... |
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m_pChannel->setInstrument(sInstrumentFile, 0); |
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// Open up the channel dialog. |
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channelSetup(); |
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} |
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} |
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|
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|
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// Channel strip setup formal initializer. |
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void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel ) |
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{ |
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// Destroy any previous channel descriptor; |
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// (remember that once setup we own it!) |
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if (m_pChannel) |
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delete m_pChannel; |
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|
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// Set the new one... |
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m_pChannel = pChannel; |
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|
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// Stabilize this around. |
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updateChannelInfo(); |
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|
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// We'll accept drops from now on... |
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if (m_pChannel) |
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setAcceptDrops(true); |
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} |
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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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|
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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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|
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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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|
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|
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// Channel display background effect. |
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void qsamplerChannelStrip::setDisplayEffect ( bool bDisplayEffect ) |
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{ |
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QPixmap pm; |
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if (bDisplayEffect) |
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pm = QPixmap::fromMimeSource("displaybg1.png"); |
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setDisplayBackground(pm); |
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} |
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|
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|
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// Update main display background pixmap. |
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void qsamplerChannelStrip::setDisplayBackground ( const QPixmap& pm ) |
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{ |
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// Set the main origin... |
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ChannelInfoFrame->setPaletteBackgroundPixmap(pm); |
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|
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// Iterate for every child text label... |
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QObjectList *pList = ChannelInfoFrame->queryList("QLabel"); |
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if (pList) { |
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for (QLabel *pLabel = (QLabel *) pList->first(); pLabel; pLabel = (QLabel *) pList->next()) |
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pLabel->setPaletteBackgroundPixmap(pm); |
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delete pList; |
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} |
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|
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// And this standalone too. |
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StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm); |
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} |
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|
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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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|
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|
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// Channel setup dialog slot. |
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bool qsamplerChannelStrip::channelSetup (void) |
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{ |
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// Invoke the channel setup dialog. |
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bool bResult = m_pChannel->channelSetup(this); |
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|
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if (bResult) { |
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// Reset the error/cycle. |
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m_iErrorCount = 0; |
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// Notify that thie channel has changed. |
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emit channelChanged(this); |
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} |
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|
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return bResult; |
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} |
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|
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|
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// Update the channel instrument name. |
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bool qsamplerChannelStrip::updateInstrumentName ( bool bForce ) |
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{ |
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if (m_pChannel == NULL) |
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return false; |
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|
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// Do we refersh the actual name? |
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if (bForce) |
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m_pChannel->updateInstrumentName(); |
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|
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// Instrument name... |
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if (m_pChannel->instrumentName().isEmpty()) |
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InstrumentNameTextLabel->setText(' ' + qsamplerChannel::noInstrumentName()); |
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else |
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InstrumentNameTextLabel->setText(' ' + m_pChannel->instrumentName()); |
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|
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return true; |
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} |
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|
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|
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// Update whole channel info state. |
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bool qsamplerChannelStrip::updateChannelInfo (void) |
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{ |
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if (m_pChannel == NULL) |
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return false; |
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|
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// Update strip caption. |
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QString sText = m_pChannel->channelName(); |
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setCaption(sText); |
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ChannelSetupPushButton->setText(sText); |
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|
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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 false; |
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|
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// Read actual channel information. |
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m_pChannel->updateChannelInfo(); |
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|
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// Engine name... |
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if (m_pChannel->engineName().isEmpty()) |
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EngineNameTextLabel->setText(' ' + qsamplerChannel::noEngineName()); |
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else |
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EngineNameTextLabel->setText(' ' + m_pChannel->engineName()); |
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|
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// Instrument name... |
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updateInstrumentName(false); |
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|
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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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|
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// MIDI Port/Channel... |
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if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL) |
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MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort())); |
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else |
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MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1)); |
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|
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// And update the both GUI volume elements. |
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return updateChannelVolume(); |
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} |
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|
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|
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// Do the dirty volume change. |
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bool qsamplerChannelStrip::updateChannelVolume (void) |
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{ |
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if (m_pChannel == NULL) |
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return false; |
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|
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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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|
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// And clip... |
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if (iVolume < 0) |
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iVolume = 0; |
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|
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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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return true; |
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} |
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|
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|
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// Update whole channel usage state. |
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bool qsamplerChannelStrip::updateChannelUsage (void) |
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{ |
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if (m_pChannel == NULL) |
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return false; |
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if (m_pChannel->client() == NULL) |
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return false; |
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|
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// Check for error limit/recycle... |
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if (m_iErrorCount > QSAMPLER_ERROR_LIMIT) |
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m_iErrorCount -= QSAMPLER_ERROR_CYCLE; |
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if (m_iErrorCount < 0) { |
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m_iErrorCount++; |
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return false; |
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} |
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|
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// Update whole channel status info, |
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// if instrument load is still pending... |
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if (m_pChannel->instrumentStatus() < 100) { |
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// grab the whole sampler channel data... |
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updateChannelInfo(); |
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// Check (updated) status again... |
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int iInstrumentStatus = m_pChannel->instrumentStatus(); |
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if (iInstrumentStatus < 100) { |
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if (iInstrumentStatus < 0) |
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m_iErrorCount++; |
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return false; |
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} |
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// Once we get a complete instrument load, |
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// we'll try an implied channel reset... |
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m_pChannel->resetChannel(); |
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// Reset error count. |
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m_iErrorCount = 0; |
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} |
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|
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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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|
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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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// We're clean. |
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return true; |
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} |
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|
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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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|
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// Avoid recursion. |
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if (m_iDirtyChange > 0) |
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return; |
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|
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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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|
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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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|
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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_pChannel == NULL) |
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return; |
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|
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// We'll just show up the main form's edit menu (thru qsamplerChannel). |
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m_pChannel->contextMenuEvent(pEvent); |
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} |
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|
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|
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// end of qsamplerChannelStrip.ui.h |