trunk/src/qsamplerChannelStrip.cpp

// qsamplerChannelStrip.cpp
//
/****************************************************************************
   Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
   Copyright (C) 2007, 2008 Christian Schoenebeck

   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.,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

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

#include "qsamplerAbout.h"
#include "qsamplerChannelStrip.h"

#include "qsamplerMainForm.h"

#include "qsamplerChannelFxForm.h"

#include <QMessageBox>
#include <QDragEnterEvent>
#include <QUrl>

// Channel status/usage usage limit control.
#define QSAMPLER_ERROR_LIMIT    3

// Needed for lroundf()
#include <math.h>

#ifndef CONFIG_ROUND
static inline long lroundf ( float x )
{
        if (x >= 0.0f)
                return long(x + 0.5f);
        else
                return long(x - 0.5f);
}
#endif


namespace QSampler {

//-------------------------------------------------------------------------
// QSampler::ChannelStrip -- Channel strip form implementation.
//

// Channel strip activation/selection.
ChannelStrip *ChannelStrip::g_pSelectedStrip = NULL;

ChannelStrip::ChannelStrip ( QWidget* pParent, Qt::WindowFlags wflags )
        : QWidget(pParent, wflags)
{
        m_ui.setupUi(this);

        // Initialize locals.
        m_pChannel     = NULL;
        m_iDirtyChange = 0;
        m_iErrorCount  = 0;

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

        QObject::connect(m_ui.ChannelSetupPushButton,
                SIGNAL(clicked()),
                SLOT(channelSetup()));
        QObject::connect(m_ui.ChannelMutePushButton,
                SIGNAL(toggled(bool)),
                SLOT(channelMute(bool)));
        QObject::connect(m_ui.ChannelSoloPushButton,
                SIGNAL(toggled(bool)),
                SLOT(channelSolo(bool)));
        QObject::connect(m_ui.VolumeSlider,
                SIGNAL(valueChanged(int)),
                SLOT(volumeChanged(int)));
        QObject::connect(m_ui.VolumeSpinBox,
                SIGNAL(valueChanged(int)),
                SLOT(volumeChanged(int)));
        QObject::connect(m_ui.ChannelEditPushButton,
                SIGNAL(clicked()),
                SLOT(channelEdit()));
        QObject::connect(m_ui.FxPushButton,
                SIGNAL(clicked()),
                SLOT(channelFxEdit()));

        setSelected(false);
}


ChannelStrip::~ChannelStrip (void)
{
        setSelected(false);

        // Destroy existing channel descriptor.
        if (m_pChannel)
                delete m_pChannel;
        m_pChannel = NULL;
}


// Window drag-n-drop event handlers.
void ChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent )
{
        if (m_pChannel == NULL)
                return;

        bool bAccept = false;

        if (pDragEnterEvent->source() == NULL) {
                const QMimeData *pMimeData = pDragEnterEvent->mimeData();
                if (pMimeData && pMimeData->hasUrls()) {
                        QListIterator<QUrl> iter(pMimeData->urls());
                        while (iter.hasNext()) {
                                const QString& sFilename = iter.next().toLocalFile();
                                if (!sFilename.isEmpty()) {
                                        bAccept = Channel::isInstrumentFile(sFilename);
                                        break;
                                }
                        }
                }
        }

        if (bAccept)
                pDragEnterEvent->accept();
        else
                pDragEnterEvent->ignore();
}


void ChannelStrip::dropEvent ( QDropEvent* pDropEvent )
{
        if (m_pChannel == NULL)
                return;

        if (pDropEvent->source())
                return;

        const QMimeData *pMimeData = pDropEvent->mimeData();
        if (pMimeData && pMimeData->hasUrls()) {
                QStringList files;
                QListIterator<QUrl> iter(pMimeData->urls());
                while (iter.hasNext()) {
                        const QString& sFilename = iter.next().toLocalFile();
                        if (!sFilename.isEmpty()) {
                                // Go and set the dropped instrument filename...
                                m_pChannel->setInstrument(sFilename, 0);
                                // Open up the channel dialog.
                                channelSetup();
                                break;
                        }
                }
        }
}


// Channel strip setup formal initializer.
void ChannelStrip::setup ( Channel *pChannel )
{
        // Destroy any previous channel descriptor;
        // (remember that once setup we own it!)
        if (m_pChannel)
                delete m_pChannel;

        // Set the new one...
        m_pChannel = pChannel;

        // Stabilize this around.
        updateChannelInfo();

        // We'll accept drops from now on...
        if (m_pChannel)
                setAcceptDrops(true);
}


// Channel secriptor accessor.
Channel *ChannelStrip::channel (void) const
{
        return m_pChannel;
}


// Messages view font accessors.
QFont ChannelStrip::displayFont (void) const
{
        return m_ui.EngineNameTextLabel->font();
}

void ChannelStrip::setDisplayFont ( const QFont & font )
{
        m_ui.EngineNameTextLabel->setFont(font);
        m_ui.MidiPortChannelTextLabel->setFont(font);
        m_ui.InstrumentNameTextLabel->setFont(font);
        m_ui.InstrumentStatusTextLabel->setFont(font);
}


// Channel display background effect.
void ChannelStrip::setDisplayEffect ( bool bDisplayEffect )
{
        QPalette pal;
        pal.setColor(QPalette::Foreground, Qt::yellow);
        m_ui.EngineNameTextLabel->setPalette(pal);
        m_ui.MidiPortChannelTextLabel->setPalette(pal);
        pal.setColor(QPalette::Foreground, Qt::green);
        if (bDisplayEffect) {
                QPixmap pm(":/icons/displaybg1.png");
                pal.setBrush(QPalette::Background, QBrush(pm));
        } else {
                pal.setColor(QPalette::Background, Qt::black);
        }
        m_ui.ChannelInfoFrame->setPalette(pal);
        m_ui.InstrumentNameTextLabel->setPalette(pal);
        m_ui.StreamVoiceCountTextLabel->setPalette(pal);
}


// Maximum volume slider accessors.
void ChannelStrip::setMaxVolume ( int iMaxVolume )
{
        m_iDirtyChange++;
        m_ui.VolumeSlider->setRange(0, iMaxVolume);
        m_ui.VolumeSpinBox->setRange(0, iMaxVolume);
        m_iDirtyChange--;
}


// Channel setup dialog slot.
bool ChannelStrip::channelSetup (void)
{
        if (m_pChannel == NULL)
                return false;

        // Invoke the channel setup dialog.
        bool bResult = m_pChannel->channelSetup(this);
        // Notify that this channel has changed.
        if (bResult)
                emit channelChanged(this);

        return bResult;
}


// Channel mute slot.
bool ChannelStrip::channelMute ( bool bMute )
{
        if (m_pChannel == NULL)
                return false;

        // Invoke the channel mute method.
        bool bResult = m_pChannel->setChannelMute(bMute);
        // Notify that this channel has changed.
        if (bResult)
                emit channelChanged(this);

        return bResult;
}


// Channel solo slot.
bool ChannelStrip::channelSolo ( bool bSolo )
{
        if (m_pChannel == NULL)
                return false;

        // Invoke the channel solo method.
        bool bResult = m_pChannel->setChannelSolo(bSolo);
        // Notify that this channel has changed.
        if (bResult)
                emit channelChanged(this);

        return bResult;
}


// Channel edit slot.
void ChannelStrip::channelEdit (void)
{
        if (m_pChannel == NULL)
                return;

        m_pChannel->editChannel();
}

bool ChannelStrip::channelFxEdit (void)
{
        MainForm *pMainForm = MainForm::getInstance();
        if (!pMainForm || !channel())
                return false;

        pMainForm->appendMessages(QObject::tr("channel fx sends..."));

        bool bResult = false;

#if CONFIG_FXSEND
        ChannelFxForm *pChannelFxForm =
                new ChannelFxForm(channel()->channelID(), parentWidget());
        if (pChannelFxForm) {
                //pChannelForm->setup(this);
                bResult = pChannelFxForm->exec();
                delete pChannelFxForm;
        }
#else // CONFIG_FXSEND
        QMessageBox::critical(this,
                QSAMPLER_TITLE ": " + tr("Unavailable"),
                        tr("Sorry, QSampler was built without FX send support!\n\n"
                           "(Make sure you have a recent liblscp when recompiling QSampler)"));
#endif // CONFIG_FXSEND

        return bResult;
}

// Channel reset slot.
bool ChannelStrip::channelReset (void)
{
        if (m_pChannel == NULL)
                return false;

        // Invoke the channel reset method.
        bool bResult = m_pChannel->channelReset();
        // Notify that this channel has changed.
        if (bResult)
                emit channelChanged(this);

        return bResult;
}


// Update the channel instrument name.
bool ChannelStrip::updateInstrumentName ( bool bForce )
{
        if (m_pChannel == NULL)
                return false;

        // Do we refresh the actual name?
        if (bForce)
                m_pChannel->updateInstrumentName();

        // Instrument name...
        if (m_pChannel->instrumentName().isEmpty()) {
                if (m_pChannel->instrumentStatus() >= 0) {
                        m_ui.InstrumentNameTextLabel->setText(
                                ' ' + Channel::loadingInstrument());
                } else {
                        m_ui.InstrumentNameTextLabel->setText(
                                ' ' + Channel::noInstrumentName());
                }
        } else {
                m_ui.InstrumentNameTextLabel->setText(
                        ' ' + m_pChannel->instrumentName());
        }

        return true;
}


// Do the dirty volume change.
bool ChannelStrip::updateChannelVolume (void)
{
        if (m_pChannel == NULL)
                return false;

        // Convert...
        int iVolume = ::lroundf(100.0f * m_pChannel->volume());
        // And clip...
        if (iVolume < 0)
                iVolume = 0;

        // Flag it here, to avoid infinite recursion.
        m_iDirtyChange++;
        m_ui.VolumeSlider->setValue(iVolume);
        m_ui.VolumeSpinBox->setValue(iVolume);
        m_iDirtyChange--;

        return true;
}


// Update whole channel info state.
bool ChannelStrip::updateChannelInfo (void)
{
        if (m_pChannel == NULL)
                return false;

        // Check for error limit/recycle...
        if (m_iErrorCount > QSAMPLER_ERROR_LIMIT)
                return true;

        // Update strip caption.
        QString sText = m_pChannel->channelName();
        setWindowTitle(sText);
        m_ui.ChannelSetupPushButton->setText('&' + sText);

        // Check if we're up and connected.
        MainForm* pMainForm = MainForm::getInstance();
        if (pMainForm->client() == NULL)
                return false;

        // Read actual channel information.
        m_pChannel->updateChannelInfo();

        // Engine name...
        if (m_pChannel->engineName().isEmpty()) {
                m_ui.EngineNameTextLabel->setText(
                        ' ' + Channel::noEngineName());
        } else {
                m_ui.EngineNameTextLabel->setText(
                        ' ' + m_pChannel->engineName());
        }

        // Instrument name...
        updateInstrumentName(false);

        // MIDI Port/Channel...
        QString sMidiPortChannel = QString::number(m_pChannel->midiPort()) + " / ";
        if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
                sMidiPortChannel += tr("All");
        else
                sMidiPortChannel += QString::number(m_pChannel->midiChannel() + 1);
        m_ui.MidiPortChannelTextLabel->setText(sMidiPortChannel);

        // Common palette...
        QPalette pal;
        const QColor& rgbFore = pal.color(QPalette::Foreground);

        // Instrument status...
        int iInstrumentStatus = m_pChannel->instrumentStatus();
        if (iInstrumentStatus < 0) {
                pal.setColor(QPalette::Foreground, Qt::red);
                m_ui.InstrumentStatusTextLabel->setPalette(pal);
                m_ui.InstrumentStatusTextLabel->setText(
                        tr("ERR%1").arg(iInstrumentStatus));
                m_iErrorCount++;
                return false;
        }
        // All seems normal...
        pal.setColor(QPalette::Foreground,
                iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
        m_ui.InstrumentStatusTextLabel->setPalette(pal);
        m_ui.InstrumentStatusTextLabel->setText(
                QString::number(iInstrumentStatus) + '%');
        m_iErrorCount = 0;

#ifdef CONFIG_MUTE_SOLO
        // Mute/Solo button state coloring...
        bool bMute = m_pChannel->channelMute();
        const QColor& rgbButton = pal.color(QPalette::Button);
        pal.setColor(QPalette::Foreground, rgbFore);
        pal.setColor(QPalette::Button, bMute ? Qt::yellow : rgbButton);
        m_ui.ChannelMutePushButton->setPalette(pal);
        m_ui.ChannelMutePushButton->setDown(bMute);
        bool bSolo = m_pChannel->channelSolo();
        pal.setColor(QPalette::Button, bSolo ? Qt::cyan : rgbButton);   
        m_ui.ChannelSoloPushButton->setPalette(pal);
        m_ui.ChannelSoloPushButton->setDown(bSolo);
#else
        m_ui.ChannelMutePushButton->setEnabled(false);
        m_ui.ChannelSoloPushButton->setEnabled(false);
#endif

        // And update the both GUI volume elements;
        // return success if, and only if, intrument is fully loaded...
        return updateChannelVolume() && (iInstrumentStatus == 100);
}


// Update whole channel usage state.
bool ChannelStrip::updateChannelUsage (void)
{
        if (m_pChannel == NULL)
                return false;

        MainForm *pMainForm = MainForm::getInstance();
        if (pMainForm->client() == NULL)
                return false;

        // This only makes sense on fully loaded channels...
        if (m_pChannel->instrumentStatus() < 100)
                return false;

        // Get current channel voice count.
        int iVoiceCount  = ::lscp_get_channel_voice_count(
                pMainForm->client(), m_pChannel->channelID());
// Get current stream count.
        int iStreamCount = ::lscp_get_channel_stream_count(
                pMainForm->client(), m_pChannel->channelID());
        // Get current channel buffer fill usage.
        // As benno has suggested this is the percentage usage
        // of the least filled buffer stream...
        int iStreamUsage = ::lscp_get_channel_stream_usage(
                pMainForm->client(), m_pChannel->channelID());;

        // Update the GUI elements...
        m_ui.StreamUsageProgressBar->setValue(iStreamUsage);
        m_ui.StreamVoiceCountTextLabel->setText(
                QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));

        // We're clean.
        return true;
}


// Volume change slot.
void ChannelStrip::volumeChanged ( int iVolume )
{
        if (m_pChannel == NULL)
                return;

        // Avoid recursion.
        if (m_iDirtyChange > 0)
                return;

        // Convert and clip.
        float fVolume = (float) iVolume / 100.0f;
        if (fVolume < 0.001f)
                fVolume = 0.0f;

        // Update the GUI elements.
        if (m_pChannel->setVolume(fVolume)) {
                updateChannelVolume();
                emit channelChanged(this);
        }
}


// Context menu event handler.
void ChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
{
        if (m_pChannel == NULL)
                return;

        // We'll just show up the main form's edit menu (thru qsamplerChannel).
        m_pChannel->contextMenuEvent(pEvent);
}


// Error count hackish accessors.
void ChannelStrip::resetErrorCount (void)
{
        m_iErrorCount = 0;
}


// Channel strip activation/selection.
void ChannelStrip::setSelected ( bool bSelected )
{
        if (bSelected) {
                if (g_pSelectedStrip == this)
                        return;
                if (g_pSelectedStrip)
                        g_pSelectedStrip->setSelected(false);
                g_pSelectedStrip = this;
        } else {
                if (g_pSelectedStrip == this)
                        g_pSelectedStrip = NULL;
        }

        QPalette pal;
        if (bSelected) {
                const QColor& color = pal.midlight().color();
                pal.setColor(QPalette::Background, color.dark(150));
                pal.setColor(QPalette::Foreground, color.light(150));
        }
        QWidget::setPalette(pal);
}


bool ChannelStrip::isSelected (void) const
{
        return (this == g_pSelectedStrip);
}


} // namespace QSampler


// end of qsamplerChannelStrip.cpp
1	capela	1464	// qsamplerChannelStrip.cpp
2			//
3			/****************************************************************************
4			Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
5	schoenebeck	1667	Copyright (C) 2007, 2008 Christian Schoenebeck
6	capela	1464
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 along
18			with this program; if not, write to the Free Software Foundation, Inc.,
19			51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20
21			*****************************************************************************/
22
23	capela	1499	#include "qsamplerAbout.h"
24	schoenebeck	1461	#include "qsamplerChannelStrip.h"
25
26			#include "qsamplerMainForm.h"
27
28	schoenebeck	1667	#include "qsamplerChannelFxForm.h"
29
30			#include <QMessageBox>
31	capela	1499	#include <QDragEnterEvent>
32	schoenebeck	1461	#include <QUrl>
33
34			// Channel status/usage usage limit control.
35			#define QSAMPLER_ERROR_LIMIT 3
36
37	capela	1510	// Needed for lroundf()
38			#include <math.h>
39
40			#ifndef CONFIG_ROUND
41			static inline long lroundf ( float x )
42			{
43			if (x >= 0.0f)
44			return long(x + 0.5f);
45			else
46			return long(x - 0.5f);
47			}
48			#endif
49
50	capela	1514
51			namespace QSampler {
52
53	capela	1558	//-------------------------------------------------------------------------
54			// QSampler::ChannelStrip -- Channel strip form implementation.
55			//
56
57	capela	1514	// Channel strip activation/selection.
58			ChannelStrip *ChannelStrip::g_pSelectedStrip = NULL;
59
60	capela	1509	ChannelStrip::ChannelStrip ( QWidget* pParent, Qt::WindowFlags wflags )
61			: QWidget(pParent, wflags)
62			{
63	capela	1510	m_ui.setupUi(this);
64	schoenebeck	1461
65	capela	1510	// Initialize locals.
66			m_pChannel = NULL;
67			m_iDirtyChange = 0;
68			m_iErrorCount = 0;
69	schoenebeck	1461
70	capela	1510	// Try to restore normal window positioning.
71			adjustSize();
72	capela	1466
73	capela	1509	QObject::connect(m_ui.ChannelSetupPushButton,
74	capela	1466	SIGNAL(clicked()),
75			SLOT(channelSetup()));
76	capela	1509	QObject::connect(m_ui.ChannelMutePushButton,
77	capela	1466	SIGNAL(toggled(bool)),
78			SLOT(channelMute(bool)));
79	capela	1509	QObject::connect(m_ui.ChannelSoloPushButton,
80	capela	1466	SIGNAL(toggled(bool)),
81			SLOT(channelSolo(bool)));
82	capela	1509	QObject::connect(m_ui.VolumeSlider,
83	capela	1466	SIGNAL(valueChanged(int)),
84			SLOT(volumeChanged(int)));
85	capela	1509	QObject::connect(m_ui.VolumeSpinBox,
86	capela	1466	SIGNAL(valueChanged(int)),
87			SLOT(volumeChanged(int)));
88	capela	1509	QObject::connect(m_ui.ChannelEditPushButton,
89	capela	1466	SIGNAL(clicked()),
90			SLOT(channelEdit()));
91	schoenebeck	1667	QObject::connect(m_ui.FxPushButton,
92			SIGNAL(clicked()),
93			SLOT(channelFxEdit()));
94	capela	1515
95			setSelected(false);
96	schoenebeck	1461	}
97
98	capela	1513
99			ChannelStrip::~ChannelStrip (void)
100			{
101	capela	1515	setSelected(false);
102
103	capela	1510	// Destroy existing channel descriptor.
104			if (m_pChannel)
105			delete m_pChannel;
106			m_pChannel = NULL;
107	schoenebeck	1461	}
108
109
110	capela	1499	// Window drag-n-drop event handlers.
111			void ChannelStrip::dragEnterEvent ( QDragEnterEvent* pDragEnterEvent )
112	schoenebeck	1461	{
113			if (m_pChannel == NULL)
114	capela	1499	return;
115
116			bool bAccept = false;
117
118			if (pDragEnterEvent->source() == NULL) {
119			const QMimeData *pMimeData = pDragEnterEvent->mimeData();
120			if (pMimeData && pMimeData->hasUrls()) {
121			QListIterator<QUrl> iter(pMimeData->urls());
122			while (iter.hasNext()) {
123			const QString& sFilename = iter.next().toLocalFile();
124			if (!sFilename.isEmpty()) {
125	capela	1558	bAccept = Channel::isInstrumentFile(sFilename);
126	capela	1499	break;
127	schoenebeck	1461	}
128			}
129			}
130			}
131
132	capela	1499	if (bAccept)
133			pDragEnterEvent->accept();
134			else
135			pDragEnterEvent->ignore();
136	schoenebeck	1461	}
137
138
139			void ChannelStrip::dropEvent ( QDropEvent* pDropEvent )
140			{
141	capela	1499	if (m_pChannel == NULL)
142			return;
143	schoenebeck	1461
144	capela	1499	if (pDropEvent->source())
145			return;
146
147			const QMimeData *pMimeData = pDropEvent->mimeData();
148			if (pMimeData && pMimeData->hasUrls()) {
149			QStringList files;
150			QListIterator<QUrl> iter(pMimeData->urls());
151			while (iter.hasNext()) {
152			const QString& sFilename = iter.next().toLocalFile();
153			if (!sFilename.isEmpty()) {
154			// Go and set the dropped instrument filename...
155			m_pChannel->setInstrument(sFilename, 0);
156			// Open up the channel dialog.
157			channelSetup();
158			break;
159			}
160			}
161	schoenebeck	1461	}
162			}
163
164
165			// Channel strip setup formal initializer.
166	capela	1558	void ChannelStrip::setup ( Channel *pChannel )
167	schoenebeck	1461	{
168	capela	1510	// Destroy any previous channel descriptor;
169			// (remember that once setup we own it!)
170			if (m_pChannel)
171			delete m_pChannel;
172	schoenebeck	1461
173	capela	1510	// Set the new one...
174			m_pChannel = pChannel;
175	schoenebeck	1461
176	capela	1510	// Stabilize this around.
177			updateChannelInfo();
178	schoenebeck	1461
179			// We'll accept drops from now on...
180			if (m_pChannel)
181			setAcceptDrops(true);
182			}
183
184	capela	1513
185	schoenebeck	1461	// Channel secriptor accessor.
186	capela	1558	Channel *ChannelStrip::channel (void) const
187	schoenebeck	1461	{
188	capela	1510	return m_pChannel;
189	schoenebeck	1461	}
190
191
192			// Messages view font accessors.
193	capela	1509	QFont ChannelStrip::displayFont (void) const
194	schoenebeck	1461	{
195	capela	1510	return m_ui.EngineNameTextLabel->font();
196	schoenebeck	1461	}
197
198			void ChannelStrip::setDisplayFont ( const QFont & font )
199			{
200	capela	1510	m_ui.EngineNameTextLabel->setFont(font);
201			m_ui.MidiPortChannelTextLabel->setFont(font);
202			m_ui.InstrumentNameTextLabel->setFont(font);
203			m_ui.InstrumentStatusTextLabel->setFont(font);
204	schoenebeck	1461	}
205
206
207			// Channel display background effect.
208			void ChannelStrip::setDisplayEffect ( bool bDisplayEffect )
209			{
210	capela	1499	QPalette pal;
211	capela	1507	pal.setColor(QPalette::Foreground, Qt::yellow);
212	capela	1509	m_ui.EngineNameTextLabel->setPalette(pal);
213			m_ui.MidiPortChannelTextLabel->setPalette(pal);
214	capela	1499	pal.setColor(QPalette::Foreground, Qt::green);
215			if (bDisplayEffect) {
216			QPixmap pm(":/icons/displaybg1.png");
217			pal.setBrush(QPalette::Background, QBrush(pm));
218			} else {
219			pal.setColor(QPalette::Background, Qt::black);
220			}
221	capela	1509	m_ui.ChannelInfoFrame->setPalette(pal);
222	capela	1637	m_ui.InstrumentNameTextLabel->setPalette(pal);
223	capela	1509	m_ui.StreamVoiceCountTextLabel->setPalette(pal);
224	schoenebeck	1461	}
225
226
227			// Maximum volume slider accessors.
228			void ChannelStrip::setMaxVolume ( int iMaxVolume )
229			{
230	capela	1510	m_iDirtyChange++;
231			m_ui.VolumeSlider->setRange(0, iMaxVolume);
232			m_ui.VolumeSpinBox->setRange(0, iMaxVolume);
233			m_iDirtyChange--;
234	schoenebeck	1461	}
235
236
237			// Channel setup dialog slot.
238			bool ChannelStrip::channelSetup (void)
239			{
240			if (m_pChannel == NULL)
241			return false;
242
243			// Invoke the channel setup dialog.
244			bool bResult = m_pChannel->channelSetup(this);
245			// Notify that this channel has changed.
246			if (bResult)
247			emit channelChanged(this);
248
249			return bResult;
250			}
251
252
253			// Channel mute slot.
254			bool ChannelStrip::channelMute ( bool bMute )
255			{
256			if (m_pChannel == NULL)
257			return false;
258
259			// Invoke the channel mute method.
260			bool bResult = m_pChannel->setChannelMute(bMute);
261			// Notify that this channel has changed.
262			if (bResult)
263			emit channelChanged(this);
264
265			return bResult;
266			}
267
268
269			// Channel solo slot.
270			bool ChannelStrip::channelSolo ( bool bSolo )
271			{
272			if (m_pChannel == NULL)
273			return false;
274
275			// Invoke the channel solo method.
276			bool bResult = m_pChannel->setChannelSolo(bSolo);
277			// Notify that this channel has changed.
278			if (bResult)
279			emit channelChanged(this);
280
281			return bResult;
282			}
283
284
285			// Channel edit slot.
286			void ChannelStrip::channelEdit (void)
287			{
288			if (m_pChannel == NULL)
289			return;
290
291			m_pChannel->editChannel();
292			}
293
294	schoenebeck	1667	bool ChannelStrip::channelFxEdit (void)
295			{
296			MainForm *pMainForm = MainForm::getInstance();
297			if (!pMainForm \|\| !channel())
298			return false;
299	schoenebeck	1461
300	schoenebeck	1667	pMainForm->appendMessages(QObject::tr("channel fx sends..."));
301
302			bool bResult = false;
303
304			#if CONFIG_FXSEND
305			ChannelFxForm *pChannelFxForm =
306			new ChannelFxForm(channel()->channelID(), parentWidget());
307			if (pChannelFxForm) {
308			//pChannelForm->setup(this);
309			bResult = pChannelFxForm->exec();
310			delete pChannelFxForm;
311			}
312			#else // CONFIG_FXSEND
313			QMessageBox::critical(this,
314			QSAMPLER_TITLE ": " + tr("Unavailable"),
315			tr("Sorry, QSampler was built without FX send support!\n\n"
316			"(Make sure you have a recent liblscp when recompiling QSampler)"));
317			#endif // CONFIG_FXSEND
318
319			return bResult;
320			}
321
322	schoenebeck	1461	// Channel reset slot.
323			bool ChannelStrip::channelReset (void)
324			{
325			if (m_pChannel == NULL)
326			return false;
327
328			// Invoke the channel reset method.
329			bool bResult = m_pChannel->channelReset();
330			// Notify that this channel has changed.
331			if (bResult)
332			emit channelChanged(this);
333
334			return bResult;
335			}
336
337
338			// Update the channel instrument name.
339			bool ChannelStrip::updateInstrumentName ( bool bForce )
340			{
341			if (m_pChannel == NULL)
342			return false;
343
344			// Do we refresh the actual name?
345			if (bForce)
346			m_pChannel->updateInstrumentName();
347
348			// Instrument name...
349			if (m_pChannel->instrumentName().isEmpty()) {
350	capela	1513	if (m_pChannel->instrumentStatus() >= 0) {
351			m_ui.InstrumentNameTextLabel->setText(
352	capela	1558	' ' + Channel::loadingInstrument());
353	capela	1513	} else {
354			m_ui.InstrumentNameTextLabel->setText(
355	capela	1558	' ' + Channel::noInstrumentName());
356	capela	1513	}
357			} else {
358			m_ui.InstrumentNameTextLabel->setText(
359			' ' + m_pChannel->instrumentName());
360			}
361	schoenebeck	1461
362			return true;
363			}
364
365
366			// Do the dirty volume change.
367			bool ChannelStrip::updateChannelVolume (void)
368			{
369	capela	1510	if (m_pChannel == NULL)
370			return false;
371	schoenebeck	1461
372	capela	1510	// Convert...
373			int iVolume = ::lroundf(100.0f * m_pChannel->volume());
374			// And clip...
375			if (iVolume < 0)
376			iVolume = 0;
377	schoenebeck	1461
378	capela	1510	// Flag it here, to avoid infinite recursion.
379			m_iDirtyChange++;
380			m_ui.VolumeSlider->setValue(iVolume);
381			m_ui.VolumeSpinBox->setValue(iVolume);
382			m_iDirtyChange--;
383	schoenebeck	1461
384	capela	1510	return true;
385	schoenebeck	1461	}
386
387
388			// Update whole channel info state.
389			bool ChannelStrip::updateChannelInfo (void)
390			{
391	capela	1510	if (m_pChannel == NULL)
392			return false;
393	schoenebeck	1461
394			// Check for error limit/recycle...
395			if (m_iErrorCount > QSAMPLER_ERROR_LIMIT)
396			return true;
397
398	capela	1510	// Update strip caption.
399			QString sText = m_pChannel->channelName();
400			setWindowTitle(sText);
401	capela	1513	m_ui.ChannelSetupPushButton->setText('&' + sText);
402	schoenebeck	1461
403	capela	1510	// Check if we're up and connected.
404	schoenebeck	1461	MainForm* pMainForm = MainForm::getInstance();
405			if (pMainForm->client() == NULL)
406			return false;
407
408	capela	1510	// Read actual channel information.
409			m_pChannel->updateChannelInfo();
410	schoenebeck	1461
411	capela	1510	// Engine name...
412	capela	1513	if (m_pChannel->engineName().isEmpty()) {
413			m_ui.EngineNameTextLabel->setText(
414	capela	1558	' ' + Channel::noEngineName());
415	capela	1513	} else {
416			m_ui.EngineNameTextLabel->setText(
417			' ' + m_pChannel->engineName());
418			}
419	schoenebeck	1461
420			// Instrument name...
421			updateInstrumentName(false);
422
423	capela	1510	// MIDI Port/Channel...
424	schoenebeck	1461	QString sMidiPortChannel = QString::number(m_pChannel->midiPort()) + " / ";
425			if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
426			sMidiPortChannel += tr("All");
427			else
428			sMidiPortChannel += QString::number(m_pChannel->midiChannel() + 1);
429	capela	1509	m_ui.MidiPortChannelTextLabel->setText(sMidiPortChannel);
430	schoenebeck	1461
431	capela	1499	// Common palette...
432			QPalette pal;
433			const QColor& rgbFore = pal.color(QPalette::Foreground);
434
435	capela	1510	// Instrument status...
436			int iInstrumentStatus = m_pChannel->instrumentStatus();
437			if (iInstrumentStatus < 0) {
438	capela	1499	pal.setColor(QPalette::Foreground, Qt::red);
439	capela	1509	m_ui.InstrumentStatusTextLabel->setPalette(pal);
440	capela	1513	m_ui.InstrumentStatusTextLabel->setText(
441			tr("ERR%1").arg(iInstrumentStatus));
442	capela	1510	m_iErrorCount++;
443			return false;
444			}
445			// All seems normal...
446	capela	1499	pal.setColor(QPalette::Foreground,
447			iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
448	capela	1510	m_ui.InstrumentStatusTextLabel->setPalette(pal);
449	capela	1513	m_ui.InstrumentStatusTextLabel->setText(
450			QString::number(iInstrumentStatus) + '%');
451	capela	1510	m_iErrorCount = 0;
452	schoenebeck	1461
453			#ifdef CONFIG_MUTE_SOLO
454	capela	1510	// Mute/Solo button state coloring...
455			bool bMute = m_pChannel->channelMute();
456	capela	1499	const QColor& rgbButton = pal.color(QPalette::Button);
457			pal.setColor(QPalette::Foreground, rgbFore);
458			pal.setColor(QPalette::Button, bMute ? Qt::yellow : rgbButton);
459	capela	1509	m_ui.ChannelMutePushButton->setPalette(pal);
460			m_ui.ChannelMutePushButton->setDown(bMute);
461	capela	1510	bool bSolo = m_pChannel->channelSolo();
462	capela	1499	pal.setColor(QPalette::Button, bSolo ? Qt::cyan : rgbButton);
463	capela	1509	m_ui.ChannelSoloPushButton->setPalette(pal);
464			m_ui.ChannelSoloPushButton->setDown(bSolo);
465	schoenebeck	1461	#else
466	capela	1509	m_ui.ChannelMutePushButton->setEnabled(false);
467			m_ui.ChannelSoloPushButton->setEnabled(false);
468	schoenebeck	1461	#endif
469
470	capela	1510	// And update the both GUI volume elements;
471			// return success if, and only if, intrument is fully loaded...
472			return updateChannelVolume() && (iInstrumentStatus == 100);
473	schoenebeck	1461	}
474
475
476			// Update whole channel usage state.
477			bool ChannelStrip::updateChannelUsage (void)
478			{
479	capela	1510	if (m_pChannel == NULL)
480			return false;
481	schoenebeck	1461
482			MainForm *pMainForm = MainForm::getInstance();
483			if (pMainForm->client() == NULL)
484			return false;
485
486			// This only makes sense on fully loaded channels...
487			if (m_pChannel->instrumentStatus() < 100)
488	capela	1510	return false;
489	schoenebeck	1461
490	capela	1510	// Get current channel voice count.
491	capela	1513	int iVoiceCount = ::lscp_get_channel_voice_count(
492			pMainForm->client(), m_pChannel->channelID());
493	capela	1510	// Get current stream count.
494	capela	1513	int iStreamCount = ::lscp_get_channel_stream_count(
495			pMainForm->client(), m_pChannel->channelID());
496	capela	1510	// Get current channel buffer fill usage.
497			// As benno has suggested this is the percentage usage
498			// of the least filled buffer stream...
499	capela	1513	int iStreamUsage = ::lscp_get_channel_stream_usage(
500			pMainForm->client(), m_pChannel->channelID());;
501	schoenebeck	1461
502	capela	1510	// Update the GUI elements...
503			m_ui.StreamUsageProgressBar->setValue(iStreamUsage);
504	capela	1513	m_ui.StreamVoiceCountTextLabel->setText(
505			QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
506	schoenebeck	1461
507	capela	1510	// We're clean.
508			return true;
509	schoenebeck	1461	}
510
511
512			// Volume change slot.
513			void ChannelStrip::volumeChanged ( int iVolume )
514			{
515	capela	1510	if (m_pChannel == NULL)
516			return;
517	schoenebeck	1461
518	capela	1510	// Avoid recursion.
519			if (m_iDirtyChange > 0)
520			return;
521	schoenebeck	1461
522	capela	1510	// Convert and clip.
523			float fVolume = (float) iVolume / 100.0f;
524			if (fVolume < 0.001f)
525			fVolume = 0.0f;
526	schoenebeck	1461
527	capela	1510	// Update the GUI elements.
528			if (m_pChannel->setVolume(fVolume)) {
529			updateChannelVolume();
530			emit channelChanged(this);
531			}
532	schoenebeck	1461	}
533
534
535			// Context menu event handler.
536			void ChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
537			{
538	capela	1510	if (m_pChannel == NULL)
539			return;
540	schoenebeck	1461
541	capela	1510	// We'll just show up the main form's edit menu (thru qsamplerChannel).
542			m_pChannel->contextMenuEvent(pEvent);
543	schoenebeck	1461	}
544
545
546			// Error count hackish accessors.
547			void ChannelStrip::resetErrorCount (void)
548			{
549			m_iErrorCount = 0;
550			}
551
552	capela	1514
553			// Channel strip activation/selection.
554			void ChannelStrip::setSelected ( bool bSelected )
555			{
556			if (bSelected) {
557			if (g_pSelectedStrip == this)
558			return;
559			if (g_pSelectedStrip)
560			g_pSelectedStrip->setSelected(false);
561			g_pSelectedStrip = this;
562			} else {
563			if (g_pSelectedStrip == this)
564			g_pSelectedStrip = NULL;
565			}
566
567			QPalette pal;
568			if (bSelected) {
569			const QColor& color = pal.midlight().color();
570			pal.setColor(QPalette::Background, color.dark(150));
571			pal.setColor(QPalette::Foreground, color.light(150));
572			}
573			QWidget::setPalette(pal);
574			}
575
576
577			bool ChannelStrip::isSelected (void) const
578			{
579			return (this == g_pSelectedStrip);
580			}
581
582
583	schoenebeck	1461	} // namespace QSampler
584	capela	1464
585
586			// end of qsamplerChannelStrip.cpp