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tdemultimedia/noatun/library/equalizerview.cpp

326 lines
7.7 KiB

#include "vequalizer.h"
#define EQVIEW_CPP
#include "equalizerview.h"
#undef EQVIEW_CPP
#include "equalizerwidget.h"
#include "app.h"
#include <knuminput.h>
#include <kdialog.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <klocale.h>
#include <tqlayout.h>
#include <tqslider.h>
#include <tqcheckbox.h>
#include <tqlabel.h>
#include <tqtabwidget.h>
#include <tqpushbutton.h>
#include <tqheader.h>
#include <tqfileinfo.h>
#include <tqhbox.h>
#include <tqvbox.h>
#include <tqframe.h>
#include <tqgroupbox.h>
#define EQ (napp->vequalizer())
////////////////////////////////////////////////
// PresetList
PresetList::PresetList(TQWidget *parent, const char *name)
: KListView(parent, name)
{
setItemsRenameable(true);
setRenameable(0, true);
addColumn(""); // first column is the visible one
addColumn("", 0); // create one column to store cruft in
setColumnWidthMode(0, TQListView::Maximum);
header()->setStretchEnabled(true,0);
header()->hide();
// a try to set a sne minimum width. unfortuately the custom item
// still doesn't draw all text with that minimum width
setMinimumWidth(kapp->fontMetrics().boundingRect(i18n("Custom")).width()+2*itemMargin());
}
void PresetList::rename(TQListViewItem *item, int c)
{
// We can't rename the "Custom" metapreset
if (item->text(0)==i18n("Custom"))
return;
// Or presets we don't have write access to
if (!TQFileInfo(item->text(1)).isWritable())
return;
KListView::rename(item, c);
}
////////////////////////////////////////////////
// EqualizerLevel
EqualizerLevel::EqualizerLevel(TQWidget *parent, VBand band)
: TQWidget(parent), mBand(band)
{
TQVBoxLayout *layout = new TQVBoxLayout(this,
0, 0, "EqualizerLevel::layout");
mSlider = new TQSlider(-200, 200, 25, 0, Qt::Vertical, this, "EqualizerLevel::mSlider");
mSlider->setTickmarks(TQSlider::Left);
mSlider->setTickInterval(25);
layout->addWidget(mSlider);
connect(mSlider, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(changed(int)));
mLabel = new TQLabel("", this, "EqualizerLevel::mLabel");
mLabel->setAlignment(AlignHCenter | AlignVCenter);
layout->addWidget(mLabel);
setMinimumHeight(200);
// setMinimumWidth(kapp->fontMetrics().width("158kHz"));
// setMinimumWidth(kapp->fontMetrics().width("549kHz"));
setBand(band);
connect(EQ, TQT_SIGNAL(modified()), TQT_SLOT(changed()));
connect(mSlider, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(changed(int)));
}
void EqualizerLevel::setBand(VBand band)
{
mBand = band;
mLabel->setText(band.format());
changed();
}
void EqualizerLevel::changed()
{
mSlider->setValue(-mBand.level());
}
void EqualizerLevel::changed(int v)
{
mBand.setLevel(-v);
}
///////////////////////////////////////////////
// EqualizerView
EqualizerView::EqualizerView()
: KDialogBase(0L, "EqualizerView", false, i18n("Equalizer"), Help | Close, Close, true),
first(true), mWidget(0), bandsLayout(0), mPresets(0), mGoingPreset(false)
{
mBands.setAutoDelete(true);
}
void EqualizerView::show()
{
if (first)
{
first = false;
setIcon(SmallIcon("noatun"));
mWidget = new EqualizerWidget(this, "mWidget");
setMainWidget(mWidget);
bandsLayout = new TQHBoxLayout(mWidget->bandsFrame,
0, KDialog::spacingHint(), "bandsLayout");
connect(mWidget->preampSlider, TQT_SIGNAL(valueChanged(int)),
this, TQT_SLOT(setPreamp(int)));
connect(EQ, TQT_SIGNAL(preampChanged(int)),
this, TQT_SLOT(changedPreamp(int)));
mWidget->bandCount->setRange(EQ->minBands(), EQ->maxBands());
connect(mWidget->bandCount, TQT_SIGNAL(valueChanged(int)),
EQ, TQT_SLOT(setBands(int)));
TQVBoxLayout *l = new TQVBoxLayout(mWidget->presetFrame);
mPresets = new PresetList(mWidget->presetFrame, "mPresets");
l->addWidget(mPresets);
connect(mWidget->removePresetButton, TQT_SIGNAL(clicked()), TQT_SLOT(remove()));
connect(mWidget->addPresetButton, TQT_SIGNAL(clicked()), TQT_SLOT(create()));
connect(mWidget->resetEqButton, TQT_SIGNAL(clicked()), TQT_SLOT(reset()));
new KListViewItem(mPresets, i18n("Custom"));
connect(mPresets, TQT_SIGNAL(currentChanged(TQListViewItem*)),
this, TQT_SLOT(select(TQListViewItem*)));
connect(mPresets, TQT_SIGNAL(itemRenamed(TQListViewItem*)),
this, TQT_SLOT(rename(TQListViewItem*)));
// populate the preset list
TQValueList<VPreset> presets = EQ->presets();
TQValueList<VPreset>::Iterator it;
for (it=presets.begin(); it!=presets.end(); ++it)
{
created(*it);
}
connect(EQ, TQT_SIGNAL(created(VPreset)), TQT_SLOT(created(VPreset)));
connect(EQ, TQT_SIGNAL(renamed(VPreset)), TQT_SLOT(renamed(VPreset)));
connect(EQ, TQT_SIGNAL(removed(VPreset)), TQT_SLOT(removed(VPreset)));
mWidget->enabledCheckBox->setChecked(EQ->isEnabled());
connect(mWidget->enabledCheckBox, TQT_SIGNAL(toggled(bool)),
EQ, TQT_SLOT(setEnabled(bool)));
connect(EQ, TQT_SIGNAL(enabled(bool)),
mWidget->enabledCheckBox, TQT_SLOT(setChecked(bool)));
connect(EQ, TQT_SIGNAL(changed()),
this, TQT_SLOT(changedEq()));
connect(EQ, TQT_SIGNAL(changedBands()),
this, TQT_SLOT(changedBands()));
changedBands();
changedEq();
} // END if(first)
if (isVisible())
raise();
else
KDialogBase::show();
}
TQListViewItem *EqualizerView::itemFor(const TQString &filename)
{
for (TQListViewItem *i=mPresets->firstChild(); i!=0; i=i->itemBelow())
{
TQString t = i->text(1);
if ((t.length()==0 && filename.length()==0) || t==filename)
return i;
}
return 0;
}
TQListViewItem *EqualizerView::itemFor(const VPreset &preset)
{
return itemFor(preset.file());
}
// why is it that when you move a TQSlider up, it goes down?
void EqualizerView::setPreamp(int x)
{
EQ->setPreamp(-x);
}
void EqualizerView::changedPreamp(int x)
{
mWidget->preampSlider->setValue(-x);
}
void EqualizerView::changedBands()
{
mBands.clear();
VEqualizer &eq = *EQ;
for (int i=0; i < eq.bands(); ++i)
{
EqualizerLevel *l = new EqualizerLevel(mWidget->bandsFrame, eq[i]);
bandsLayout->addWidget(l);
l->show();
mBands.append(l);
}
mWidget->bandCount->setValue(eq.bands());
changedEq();
}
void EqualizerView::changedEq()
{
if (!mGoingPreset)
{
TQListViewItem *customitem = itemFor("");
if (!customitem) // this should never happen!
return;
mPresets->setSelected(customitem, true);
}
}
void EqualizerView::removed(VPreset p)
{
delete itemFor(p);
}
void EqualizerView::created(VPreset p)
{
// store the filename in TQListViewItem::text(0)
TQString n = p.name();
TQString f = p.file();
new KListViewItem(mPresets, n, f);
}
void EqualizerView::renamed(VPreset p)
{
TQListViewItem *renamed = itemFor(p);
if (!renamed) // WTF !
{
created(p);
return;
}
renamed->setText(0, p.name());
}
void EqualizerView::remove()
{
TQListViewItem *current=mPresets->currentItem();
if (current->text(0)==i18n("Custom"))
return;
TQListViewItem *then=current->itemAbove();
if (!then) then=current->itemBelow();
if (then)
mPresets->setSelected(then, true);
VPreset p = EQ->presetByFile(current->text(1));
p.remove();
}
void EqualizerView::create()
{
VPreset p = EQ->createPreset(i18n("New Preset"));
mGoingPreset = true;
// Load the new preset
p.load();
// We should have just made a list view item for this preset
// See EquailizerView::presetAdded()
TQListViewItem *i = itemFor(p);
if (i)
mPresets->setSelected(i, true);
mGoingPreset = false;
}
void EqualizerView::reset()
{
VEqualizer &eq = *EQ;
eq.setPreamp(0);
for (int i=0; i < eq.bands(); ++i)
eq.band(i).setLevel(0);
}
void EqualizerView::rename(TQListViewItem *item)
{
EQ->presetByFile(item->text(1)).setName(item->text(0));
item->setText(0, EQ->presetByFile(item->text(1)).name());
}
void EqualizerView::select(TQListViewItem *item)
{
mGoingPreset = true;
EQ->presetByFile(item->text(1)).load();
mGoingPreset = false;
mWidget->removePresetButton->setEnabled(item->text(1).length());
}
#undef EQ
#include "equalizerview.moc"