trunk/src/qsamplerChannelStrip.ui.h

// qsamplerChannelStrip.ui.h
//
// ui.h extension file, included from the uic-generated form implementation.
/****************************************************************************
   Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved.

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

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

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

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

#include <qvalidator.h>
#include <qmessagebox.h>
#include <qfileinfo.h>
#include <qtooltip.h>
#include <qpopupmenu.h>
#include <qobjectlist.h>

#include <math.h>

#include "qsamplerMainForm.h"
#include "qsamplerChannelForm.h"

#include "config.h"


// Kind of constructor.
void qsamplerChannelStrip::init (void)
{
    // Initialize locals.
    m_pChannel     = NULL;
    m_iDirtyChange = 0;

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


// Kind of destructor.
void qsamplerChannelStrip::destroy (void)
{
    // Destroy existing channel descriptor.
    if (m_pChannel)
        delete m_pChannel;
    m_pChannel = NULL;
}


// Channel strip setup formal initializer.
void qsamplerChannelStrip::setup ( qsamplerChannel *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();
}

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


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

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


// Channel display background effect.
void qsamplerChannelStrip::setDisplayEffect ( bool bDisplayEffect )
{
    QPixmap pm;
    if (bDisplayEffect)
        pm = QPixmap::fromMimeSource("displaybg1.png");
    setDisplayBackground(pm);
}


// Update main display background pixmap.
void qsamplerChannelStrip::setDisplayBackground ( const QPixmap& pm )
{
    // Set the main origin...
    ChannelInfoFrame->setPaletteBackgroundPixmap(pm);

    // Iterate for every child text label...
    QObjectList *pList = ChannelInfoFrame->queryList("QLabel");
    if (pList) {
        for (QLabel *pLabel = (QLabel *) pList->first(); pLabel; pLabel = (QLabel *) pList->next())
            pLabel->setPaletteBackgroundPixmap(pm);
        delete pList;
    }
    
    // And this standalone too.
    StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);
}


// Channel setup dialog slot.
bool qsamplerChannelStrip::channelSetup (void)
{
    bool bResult = m_pChannel->channelSetup(this);

    if (bResult)
        emit channelChanged(this);

    return bResult;
}


// Update whole channel info state.
bool qsamplerChannelStrip::updateChannelInfo (void)
{
    if (m_pChannel == NULL)
        return false;
        
    // Update strip caption.
    QString sText = m_pChannel->channelName();
    setCaption(sText);
    ChannelSetupPushButton->setText(sText);

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

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

    // Set some proper display values.
    const QString sIndent = " ";

    // Engine name...
    if (m_pChannel->engineName().isEmpty())
        EngineNameTextLabel->setText(sIndent + tr("(No engine)"));
    else
        EngineNameTextLabel->setText(sIndent + m_pChannel->engineName());

    // Instrument name...
    if (m_pChannel->instrumentFile().isEmpty())
        InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)"));
    else
        InstrumentNameTextLabel->setText(sIndent + qsamplerChannel::getInstrumentName(m_pChannel->instrumentFile(), m_pChannel->instrumentNr()));

    // Instrument status...
    int iInstrumentStatus = m_pChannel->instrumentStatus();
    if (iInstrumentStatus < 0) {
        InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);
        InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));
    } else {
        InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
        InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%");
    }

    // MIDI Port/Channel...
    if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
        MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));
    else
        MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));

    // And update the both GUI volume elements.
    return updateChannelVolume();
}


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

    // Convert...
#ifdef CONFIG_ROUND
    int iVolume = (int) ::round(100.0 * m_pChannel->volume());
#else
    double fIPart = 0.0;
    double fFPart = ::modf(100.0 * m_pChannel->volume(), &fIPart);
    int iVolume = (int) fIPart;
    if (fFPart >= +0.5)
        iVolume++;
    else
    if (fFPart <= -0.5)
        iVolume--;
#endif

    // And clip...
    if (iVolume < 0)
        iVolume = 0;

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


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

    // Update whole channel status info,
    // if instrument load is still pending...
    if (m_pChannel->instrumentStatus() < 100) {
        updateChannelInfo();
        // Check (updated) status again...
        if (m_pChannel->instrumentStatus() < 100)
            return false;
        // Once we get a complete instrument load,
        // we'll try an implied channel reset...
        m_pChannel->resetChannel();
    }
    
    // Check again that we're clean.
    if (m_pChannel->instrumentStatus() < 100)
        return false;

    // Get current channel voice count.
    int iVoiceCount  = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID());
    // Get current stream count.
    int iStreamCount = ::lscp_get_channel_stream_count(m_pChannel->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(m_pChannel->client(), m_pChannel->channelID());;

    // Update the GUI elements...
    StreamUsageProgressBar->setProgress(iStreamUsage);
    StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
    
    // We're clean.
    return true;
}


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

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

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

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


// Context menu event handler.
void qsamplerChannelStrip::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);
}


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


// end of qsamplerChannelStrip.ui.h
1	// qsamplerChannelStrip.ui.h
2	//
3	// ui.h extension file, included from the uic-generated form implementation.
4	/****************************************************************************
5	Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved.
6
7	This program is free software; you can redistribute it and/or
8	modify it under the terms of the GNU General Public License
9	as published by the Free Software Foundation; either version 2
10	of the License, or (at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
21	*****************************************************************************/
22
23	#include <qvalidator.h>
24	#include <qmessagebox.h>
25	#include <qfileinfo.h>
26	#include <qtooltip.h>
27	#include <qpopupmenu.h>
28	#include <qobjectlist.h>
29
30	#include <math.h>
31
32	#include "qsamplerMainForm.h"
33	#include "qsamplerChannelForm.h"
34
35	#include "config.h"
36
37
38	// Kind of constructor.
39	void qsamplerChannelStrip::init (void)
40	{
41	// Initialize locals.
42	m_pChannel = NULL;
43	m_iDirtyChange = 0;
44
45	// Try to restore normal window positioning.
46	adjustSize();
47	}
48
49
50	// Kind of destructor.
51	void qsamplerChannelStrip::destroy (void)
52	{
53	// Destroy existing channel descriptor.
54	if (m_pChannel)
55	delete m_pChannel;
56	m_pChannel = NULL;
57	}
58
59
60	// Channel strip setup formal initializer.
61	void qsamplerChannelStrip::setup ( qsamplerChannel *pChannel )
62	{
63	// Destroy any previous channel descriptor;
64	// (remember that once setup we own it!)
65	if (m_pChannel)
66	delete m_pChannel;
67
68	// Set the new one...
69	m_pChannel = pChannel;
70
71	// Stabilize this around.
72	updateChannelInfo();
73	}
74
75	// Channel secriptor accessor.
76	qsamplerChannel *qsamplerChannelStrip::channel (void)
77	{
78	return m_pChannel;
79	}
80
81
82	// Messages view font accessors.
83	QFont qsamplerChannelStrip::displayFont (void)
84	{
85	return EngineNameTextLabel->font();
86	}
87
88	void qsamplerChannelStrip::setDisplayFont ( const QFont & font )
89	{
90	EngineNameTextLabel->setFont(font);
91	MidiPortChannelTextLabel->setFont(font);
92	InstrumentNameTextLabel->setFont(font);
93	InstrumentStatusTextLabel->setFont(font);
94	}
95
96
97	// Channel display background effect.
98	void qsamplerChannelStrip::setDisplayEffect ( bool bDisplayEffect )
99	{
100	QPixmap pm;
101	if (bDisplayEffect)
102	pm = QPixmap::fromMimeSource("displaybg1.png");
103	setDisplayBackground(pm);
104	}
105
106
107	// Update main display background pixmap.
108	void qsamplerChannelStrip::setDisplayBackground ( const QPixmap& pm )
109	{
110	// Set the main origin...
111	ChannelInfoFrame->setPaletteBackgroundPixmap(pm);
112
113	// Iterate for every child text label...
114	QObjectList *pList = ChannelInfoFrame->queryList("QLabel");
115	if (pList) {
116	for (QLabel pLabel = (QLabel ) pList->first(); pLabel; pLabel = (QLabel *) pList->next())
117	pLabel->setPaletteBackgroundPixmap(pm);
118	delete pList;
119	}
120
121	// And this standalone too.
122	StreamVoiceCountTextLabel->setPaletteBackgroundPixmap(pm);
123	}
124
125
126	// Channel setup dialog slot.
127	bool qsamplerChannelStrip::channelSetup (void)
128	{
129	bool bResult = m_pChannel->channelSetup(this);
130
131	if (bResult)
132	emit channelChanged(this);
133
134	return bResult;
135	}
136
137
138	// Update whole channel info state.
139	bool qsamplerChannelStrip::updateChannelInfo (void)
140	{
141	if (m_pChannel == NULL)
142	return false;
143
144	// Update strip caption.
145	QString sText = m_pChannel->channelName();
146	setCaption(sText);
147	ChannelSetupPushButton->setText(sText);
148
149	// Check if we're up and connected.
150	if (m_pChannel->client() == NULL)
151	return false;
152
153	// Read actual channel information.
154	m_pChannel->updateChannelInfo();
155
156	// Set some proper display values.
157	const QString sIndent = " ";
158
159	// Engine name...
160	if (m_pChannel->engineName().isEmpty())
161	EngineNameTextLabel->setText(sIndent + tr("(No engine)"));
162	else
163	EngineNameTextLabel->setText(sIndent + m_pChannel->engineName());
164
165	// Instrument name...
166	if (m_pChannel->instrumentFile().isEmpty())
167	InstrumentNameTextLabel->setText(sIndent + tr("(No instrument)"));
168	else
169	InstrumentNameTextLabel->setText(sIndent + qsamplerChannel::getInstrumentName(m_pChannel->instrumentFile(), m_pChannel->instrumentNr()));
170
171	// Instrument status...
172	int iInstrumentStatus = m_pChannel->instrumentStatus();
173	if (iInstrumentStatus < 0) {
174	InstrumentStatusTextLabel->setPaletteForegroundColor(Qt::red);
175	InstrumentStatusTextLabel->setText(tr("ERR%1").arg(iInstrumentStatus));
176	} else {
177	InstrumentStatusTextLabel->setPaletteForegroundColor(iInstrumentStatus < 100 ? Qt::yellow : Qt::green);
178	InstrumentStatusTextLabel->setText(QString::number(iInstrumentStatus) + "%");
179	}
180
181	// MIDI Port/Channel...
182	if (m_pChannel->midiChannel() == LSCP_MIDI_CHANNEL_ALL)
183	MidiPortChannelTextLabel->setText(QString("%1 / *").arg(m_pChannel->midiPort()));
184	else
185	MidiPortChannelTextLabel->setText(QString("%1 / %2").arg(m_pChannel->midiPort()).arg(m_pChannel->midiChannel() + 1));
186
187	// And update the both GUI volume elements.
188	return updateChannelVolume();
189	}
190
191
192	// Do the dirty volume change.
193	bool qsamplerChannelStrip::updateChannelVolume (void)
194	{
195	if (m_pChannel == NULL)
196	return false;
197
198	// Convert...
199	#ifdef CONFIG_ROUND
200	int iVolume = (int) ::round(100.0 * m_pChannel->volume());
201	#else
202	double fIPart = 0.0;
203	double fFPart = ::modf(100.0 * m_pChannel->volume(), &fIPart);
204	int iVolume = (int) fIPart;
205	if (fFPart >= +0.5)
206	iVolume++;
207	else
208	if (fFPart <= -0.5)
209	iVolume--;
210	#endif
211
212	// And clip...
213	if (iVolume < 0)
214	iVolume = 0;
215
216	// Flag it here, to avoid infinite recursion.
217	m_iDirtyChange++;
218	VolumeSlider->setValue(iVolume);
219	VolumeSpinBox->setValue(iVolume);
220	m_iDirtyChange--;
221
222	return true;
223	}
224
225
226	// Update whole channel usage state.
227	bool qsamplerChannelStrip::updateChannelUsage (void)
228	{
229	if (m_pChannel == NULL)
230	return false;
231	if (m_pChannel->client() == NULL)
232	return false;
233
234	// Update whole channel status info,
235	// if instrument load is still pending...
236	if (m_pChannel->instrumentStatus() < 100) {
237	updateChannelInfo();
238	// Check (updated) status again...
239	if (m_pChannel->instrumentStatus() < 100)
240	return false;
241	// Once we get a complete instrument load,
242	// we'll try an implied channel reset...
243	m_pChannel->resetChannel();
244	}
245
246	// Check again that we're clean.
247	if (m_pChannel->instrumentStatus() < 100)
248	return false;
249
250	// Get current channel voice count.
251	int iVoiceCount = ::lscp_get_channel_voice_count(m_pChannel->client(), m_pChannel->channelID());
252	// Get current stream count.
253	int iStreamCount = ::lscp_get_channel_stream_count(m_pChannel->client(), m_pChannel->channelID());
254	// Get current channel buffer fill usage.
255	// As benno has suggested this is the percentage usage
256	// of the least filled buffer stream...
257	int iStreamUsage = ::lscp_get_channel_stream_usage(m_pChannel->client(), m_pChannel->channelID());;
258
259	// Update the GUI elements...
260	StreamUsageProgressBar->setProgress(iStreamUsage);
261	StreamVoiceCountTextLabel->setText(QString("%1 / %2").arg(iStreamCount).arg(iVoiceCount));
262
263	// We're clean.
264	return true;
265	}
266
267
268	// Volume change slot.
269	void qsamplerChannelStrip::volumeChanged ( int iVolume )
270	{
271	if (m_pChannel == NULL)
272	return;
273
274	// Avoid recursion.
275	if (m_iDirtyChange > 0)
276	return;
277
278	// Convert and clip.
279	float fVolume = (float) iVolume / 100.0;
280	if (fVolume < 0.001)
281	fVolume = 0.0;
282
283	// Update the GUI elements.
284	if (m_pChannel->setVolume(fVolume)) {
285	updateChannelVolume();
286	emit channelChanged(this);
287	}
288	}
289
290
291	// Context menu event handler.
292	void qsamplerChannelStrip::contextMenuEvent( QContextMenuEvent *pEvent )
293	{
294	if (m_pChannel == NULL)
295	return;
296
297	// We'll just show up the main form's edit menu (thru qsamplerChannel).
298	m_pChannel->contextMenuEvent(pEvent);
299	}
300
301
302	// Maximum volume slider accessors.
303	void qsamplerChannelStrip::setMaxVolume ( int iMaxVolume )
304	{
305	m_iDirtyChange++;
306	VolumeSlider->setRange(0, iMaxVolume);
307	VolumeSpinBox->setRange(0, iMaxVolume);
308	m_iDirtyChange--;
309	}
310
311
312	// end of qsamplerChannelStrip.ui.h