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koffice/kexi/widget/tableview/kexiblobtableedit.cpp

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/* This file is part of the KDE project
Copyright (C) 2002 Peter Simonsson <psn@linux.se>
Copyright (C) 2004, 2006 Jaroslaw Staniek <js@iidea.pl>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "kexiblobtableedit.h"
#include <stdlib.h>
#include <tqdatastream.h>
#include <tqfile.h>
#include <tqpopupmenu.h>
#include <tqtextedit.h>
#include <tqlayout.h>
#include <tqstatusbar.h>
#include <tqlabel.h>
#include <tqpixmap.h>
#include <tqimage.h>
#include <tqpainter.h>
#include <tqtooltip.h>
#include <tqapplication.h>
#include <tqclipboard.h>
#include <tqbuffer.h>
#include <kdebug.h>
#include <ktempfile.h>
#include <kmimetype.h>
#include <kmimemagic.h>
#include <kuserprofile.h>
#include <kservice.h>
#include <kprocess.h>
#include <kopenwith.h>
#include <kurl.h>
#include <karrowbutton.h>
#include <klocale.h>
#include <tdefiledialog.h>
#include <tdeio/job.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <kpopupmenu.h>
#include <kstdaccel.h>
#include <kexiutils/utils.h>
#include <widget/utils/kexidropdownbutton.h>
#include <widget/utils/kexicontextmenuutils.h>
//! @internal
class KexiBlobTableEdit::Private
{
public:
Private()
: popup(0)
, readOnly(false)
, setValueInternalEnabled(true)
{
}
TQByteArray value;
KexiDropDownButton *button;
TQSize totalSize;
KexiImageContextMenu *popup;
bool readOnly : 1; //!< cached for slotUpdateActionsAvailabilityRequested()
bool setValueInternalEnabled : 1; //!< used to disable KexiBlobTableEdit::setValueInternal()
};
//======================================================
KexiBlobTableEdit::KexiBlobTableEdit(KexiTableViewColumn &column, TQWidget *parent)
: KexiTableEdit(column, parent)
, d ( new Private() )
{
setName("KexiBlobTableEdit");
// m_proc = 0;
// m_content = 0;
m_hasFocusableWidget = false;
d->button = new KexiDropDownButton( parentWidget() /*usually a viewport*/ );
d->button->hide();
TQToolTip::add(d->button, i18n("Click to show available actions for this cell"));
d->popup = new KexiImageContextMenu(this);
d->popup->installEventFilter(this);
if (column.columnInfo)
KexiImageContextMenu::updateTitle( d->popup, column.columnInfo->captionOrAliasOrName(),
//! @todo pixmaplabel icon is hardcoded...
"pixmaplabel" );
d->button->setPopup( d->popup );
//force edit requested to start editing... (this will call slotUpdateActionsAvailabilityRequested())
//connect(d->popup, TQT_SIGNAL(aboutToShow()), this, TQT_SIGNAL(editRequested()));
connect(d->popup, TQT_SIGNAL(updateActionsAvailabilityRequested(bool&, bool&)),
this, TQT_SLOT(slotUpdateActionsAvailabilityRequested(bool&, bool&)));
connect(d->popup, TQT_SIGNAL(insertFromFileRequested(const KURL&)),
this, TQT_SLOT(handleInsertFromFileAction(const KURL&)));
connect(d->popup, TQT_SIGNAL(saveAsRequested(const TQString&)),
this, TQT_SLOT(handleSaveAsAction(const TQString&)));
connect(d->popup, TQT_SIGNAL(cutRequested()),
this, TQT_SLOT(handleCutAction()));
connect(d->popup, TQT_SIGNAL(copyRequested()),
this, TQT_SLOT(handleCopyAction()));
connect(d->popup, TQT_SIGNAL(pasteRequested()),
this, TQT_SLOT(handlePasteAction()));
connect(d->popup, TQT_SIGNAL(clearRequested()),
this, TQT_SLOT(clear()));
connect(d->popup, TQT_SIGNAL(showPropertiesRequested()),
this, TQT_SLOT(handleShowPropertiesAction()));
}
KexiBlobTableEdit::~KexiBlobTableEdit()
{
delete d;
#if 0
kdDebug() << "KexiBlobTableEdit: Cleaning up..." << endl;
if (m_tempFile) {
m_tempFile->unlink();
//todo
}
delete m_proc;
m_proc = 0;
kdDebug() << "KexiBlobTableEdit: Ready." << endl;
#endif
}
//! initializes this editor with \a add value
void KexiBlobTableEdit::setValueInternal(const TQVariant& add, bool removeOld)
{
if (!d->setValueInternalEnabled)
return;
if (removeOld)
d->value = add.toByteArray();
else //do not add "m_origValue" to "add" as this is TQByteArray
d->value = m_origValue.toByteArray();
#if 0 //todo?
TQByteArray val = m_origValue.toByteArray();
kdDebug() << "KexiBlobTableEdit: Size of BLOB: " << val.size() << endl;
m_tempFile = new KTempFile();
m_tempFile->setAutoDelete(true);
kdDebug() << "KexiBlobTableEdit: Creating temporary file: " << m_tempFile->name() << endl;
m_tempFile->dataStream()->writeRawBytes(val.data(), val.size());
m_tempFile->close();
delete m_tempFile;
m_tempFile = 0;
KMimeMagicResult* mmr = KMimeMagic::self()->findFileType(m_tempFile->name());
kdDebug() << "KexiBlobTableEdit: Mimetype = " << mmr->mimeType() << endl;
setViewWidget( new TQWidget(this) );
#endif
}
bool KexiBlobTableEdit::valueIsNull()
{
//TODO
d->value.size();
return d->value.isEmpty();
}
bool KexiBlobTableEdit::valueIsEmpty()
{
//TODO
return d->value.isEmpty();
}
TQVariant
KexiBlobTableEdit::value()
{
return d->value;
#if 0
//todo
// ok = true;
if(m_content && m_content->isModified())
{
return TQVariant(m_content->text());
}
TQByteArray value;
TQFile f( m_tempFile->name() );
f.open(IO_ReadOnly);
TQDataStream stream(&f);
char* data = (char*) malloc(f.size());
value.resize(f.size());
stream.readRawBytes(data, f.size());
value.duplicate(data, f.size());
free(data);
kdDebug() << "KexiBlobTableEdit: Size of BLOB: " << value.size() << endl;
return TQVariant(value);
#endif
}
void KexiBlobTableEdit::paintFocusBorders( TQPainter *p, TQVariant &, int x, int y, int w, int h )
{
// d->currentEditorWidth = w;
if (!d->readOnly && w > d->button->width())
w -= d->button->width();
p->drawRect(x, y, w, h);
}
void
KexiBlobTableEdit::setupContents( TQPainter *p, bool focused, const TQVariant& val,
TQString &txt, int &align, int &x, int &y_offset, int &w, int &h )
{
Q_UNUSED(focused);
Q_UNUSED(txt);
Q_UNUSED(align);
//! @todo optimize: load to m_pixmap, downsize
TQPixmap pixmap;
x = 0;
w -= 1; //a place for border
h -= 1; //a place for border
if (p && val.canCast(TQVariant::ByteArray) && pixmap.loadFromData(val.toByteArray())) {
KexiUtils::drawPixmap( *p, 0/*lineWidth*/, TQRect(x, y_offset, w, h),
pixmap, TQt::AlignCenter, true/*scaledContents*/, true/*keepAspectRatio*/);
}
}
bool KexiBlobTableEdit::cursorAtStart()
{
return true;
}
bool KexiBlobTableEdit::cursorAtEnd()
{
return true;
}
void KexiBlobTableEdit::handleInsertFromFileAction(const KURL& url)
{
if (isReadOnly())
return;
TQString fileName( url.isLocalFile() ? url.path() : url.prettyURL() );
//! @todo download the file if remote, then set fileName properly
TQFile f(fileName);
if (!f.open(IO_ReadOnly)) {
//! @todo err msg
return;
}
TQByteArray ba = f.readAll();
if (f.status()!=IO_Ok) {
//! @todo err msg
f.close();
return;
}
f.close();
// m_valueMimeType = KImageIO::mimeType( fileName );
setValueInternal( ba, true );
signalEditRequested();
//emit acceptRequested();
}
void KexiBlobTableEdit::handleAboutToSaveAsAction(TQString& origFilename, TQString& fileExtension, bool& dataIsEmpty)
{
Q_UNUSED(origFilename);
Q_UNUSED(fileExtension);
dataIsEmpty = valueIsEmpty();
//! @todo no fname stored for now
}
void KexiBlobTableEdit::handleSaveAsAction(const TQString& fileName)
{
TQFile f(fileName);
if (!f.open(IO_WriteOnly)) {
//! @todo err msg
return;
}
f.writeBlock( d->value );
if (f.status()!=IO_Ok) {
//! @todo err msg
f.close();
return;
}
f.close();
}
void KexiBlobTableEdit::handleCutAction()
{
if (isReadOnly())
return;
handleCopyAction();
clear();
}
void KexiBlobTableEdit::handleCopyAction()
{
executeCopyAction(d->value);
}
void KexiBlobTableEdit::executeCopyAction(const TQByteArray& data)
{
TQPixmap pixmap;
if (!pixmap.loadFromData(data))
return;
tqApp->clipboard()->setPixmap(pixmap, TQClipboard::Clipboard);
}
void KexiBlobTableEdit::handlePasteAction()
{
if (isReadOnly())
return;
TQPixmap pm( tqApp->clipboard()->pixmap(TQClipboard::Clipboard) );
TQByteArray ba;
TQBuffer buffer( ba );
buffer.open( IO_WriteOnly );
if (pm.save( &buffer, "PNG" )) {// write pixmap into ba in PNG format
setValueInternal( ba, true );
}
else {
setValueInternal( TQByteArray(), true );
}
signalEditRequested();
//emit acceptRequested();
repaintRelatedCell();
}
void KexiBlobTableEdit::clear()
{
setValueInternal( TQByteArray(), true );
signalEditRequested();
//emit acceptRequested();
repaintRelatedCell();
}
void KexiBlobTableEdit::handleShowPropertiesAction()
{
//! @todo
}
void KexiBlobTableEdit::showFocus( const TQRect& r, bool readOnly )
{
d->readOnly = readOnly; //cache for slotUpdateActionsAvailabilityRequested()
// d->button->move( pos().x()+ width(), pos().y() );
updateFocus( r );
// d->button->setEnabled(!readOnly);
if (d->readOnly)
d->button->hide();
else
d->button->show();
}
void KexiBlobTableEdit::resize(int w, int h)
{
d->totalSize = TQSize(w,h);
const int addWidth = d->readOnly ? 0 : d->button->width();
TQWidget::resize(w - addWidth, h);
if (!d->readOnly)
d->button->resize( h, h );
m_rightMarginWhenFocused = m_rightMargin + addWidth;
TQRect r( pos().x(), pos().y(), w+1, h+1 );
r.moveBy(m_scrollView->contentsX(),m_scrollView->contentsY());
updateFocus( r );
//todo if (d->popup) {
//todo d->popup->updateSize();
//todo }
}
void KexiBlobTableEdit::updateFocus( const TQRect& r )
{
if (!d->readOnly) {
if (d->button->width() > r.width())
moveChild(d->button, r.right() + 1, r.top());
else
moveChild(d->button, r.right() - d->button->width(), r.top() );
}
}
void KexiBlobTableEdit::hideFocus()
{
d->button->hide();
}
TQSize KexiBlobTableEdit::totalSize() const
{
return d->totalSize;
}
void KexiBlobTableEdit::slotUpdateActionsAvailabilityRequested(bool& valueIsNull, bool& valueIsReadOnly)
{
emit editRequested();
valueIsNull = this->valueIsNull();
valueIsReadOnly = d->readOnly || isReadOnly();
}
void KexiBlobTableEdit::signalEditRequested()
{
d->setValueInternalEnabled = false;
emit editRequested();
d->setValueInternalEnabled = true;
}
bool KexiBlobTableEdit::handleKeyPress( TQKeyEvent* ke, bool editorActive )
{
Q_UNUSED(editorActive);
const int k = ke->key();
KKey kkey(ke);
if (!d->readOnly) {
if ((ke->state()==Qt::NoButton && k==TQt::Key_F4)
|| (ke->state()==TQt::AltButton && k==TQt::Key_Down)) {
d->button->animateClick();
TQMouseEvent me( TQEvent::MouseButtonPress, TQPoint(2,2), Qt::LeftButton, Qt::NoButton );
TQApplication::sendEvent( d->button, &me );
}
else if ((ke->state()==Qt::NoButton && (k==TQt::Key_F2 || k==TQt::Key_Space || k==TQt::Key_Enter || k==TQt::Key_Return))) {
d->popup->insertFromFile();
}
else
return false;
}
else
return false;
return true;
}
bool KexiBlobTableEdit::handleDoubleClick()
{
d->popup->insertFromFile();
return true;
}
void KexiBlobTableEdit::handleCopyAction(const TQVariant& value, const TQVariant& visibleValue)
{
Q_UNUSED(visibleValue);
executeCopyAction(value.toByteArray());
}
void KexiBlobTableEdit::handleAction(const TQString& actionName)
{
if (actionName=="edit_paste") {
d->popup->paste();
}
else if (actionName=="edit_cut") {
emit editRequested();
d->popup->cut();
}
}
bool KexiBlobTableEdit::eventFilter( TQObject *o, TQEvent *e )
{
if (TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(d->popup) && e->type()==TQEvent::KeyPress) {
TQKeyEvent* ke = TQT_TQKEYEVENT(e);
const int state = ke->state();
const int k = ke->key();
if ( (state==Qt::NoButton && (k==TQt::Key_Tab || k==TQt::Key_Left || k==TQt::Key_Right))
|| (state==TQt::ShiftButton && k==TQt::Key_Backtab)
)
{
d->popup->hide();
TQApplication::sendEvent( this, ke ); //re-send to move cursor
return true;
}
}
return false;
}
KEXI_CELLEDITOR_FACTORY_ITEM_IMPL(KexiBlobEditorFactoryItem, KexiBlobTableEdit)
//=======================
// KexiKIconTableEdit class is temporarily here:
//! @internal
class KexiKIconTableEdit::Private
{
public:
Private()
: pixmapCache(17, 17, false)
{
}
//! We've no editor widget that would store current value, so we do this here
TQVariant currentValue;
TQCache<TQPixmap> pixmapCache;
};
KexiKIconTableEdit::KexiKIconTableEdit(KexiTableViewColumn &column, TQWidget *parent)
: KexiTableEdit(column, parent)
, d( new Private() )
{
setName("KexiKIconTableEdit");
init();
}
KexiKIconTableEdit::~KexiKIconTableEdit()
{
delete d;
}
void KexiKIconTableEdit::init()
{
m_hasFocusableWidget = false;
d->pixmapCache.setAutoDelete(true);
}
void KexiKIconTableEdit::setValueInternal(const TQVariant& /*add*/, bool /*removeOld*/)
{
d->currentValue = m_origValue;
}
bool KexiKIconTableEdit::valueIsNull()
{
return d->currentValue.isNull();
}
bool KexiKIconTableEdit::valueIsEmpty()
{
return d->currentValue.isNull();
}
TQVariant KexiKIconTableEdit::value()
{
return d->currentValue;
}
void KexiKIconTableEdit::clear()
{
d->currentValue = TQVariant();
}
bool KexiKIconTableEdit::cursorAtStart()
{
return true;
}
bool KexiKIconTableEdit::cursorAtEnd()
{
return true;
}
void KexiKIconTableEdit::setupContents( TQPainter *p, bool /*focused*/, const TQVariant& val,
TQString &/*txt*/, int &/*align*/, int &/*x*/, int &y_offset, int &w, int &h )
{
Q_UNUSED( y_offset );
#if 0
#ifdef TQ_WS_WIN
y_offset = -1;
#else
y_offset = 0;
#endif
int s = TQMAX(h - 5, 12);
s = TQMIN( h-3, s );
s = TQMIN( w-3, s );//avoid too large box
TQRect r( TQMAX( w/2 - s/2, 0 ) , h/2 - s/2 /*- 1*/, s, s);
p->setPen(TQPen(colorGroup().text(), 1));
p->drawRect(r);
if (val.asBool()) {
p->drawLine(r.x(), r.y(), r.right(), r.bottom());
p->drawLine(r.x(), r.bottom(), r.right(), r.y());
}
#endif
TQString key = val.toString();
TQPixmap *pix = 0;
if (!key.isEmpty() && !(pix = d->pixmapCache[ key ])) {
//cache pixmap
TQPixmap pm = TDEGlobal::iconLoader()->loadIcon( key, KIcon::Small,
0, KIcon::DefaultState, 0L, true/*canReturnNull*/ );
if (!pm.isNull()) {
pix = new TQPixmap(pm);
d->pixmapCache.insert(key, pix);
}
}
if (p && pix) {
p->drawPixmap( (w-pix->width())/2, (h-pix->height())/2, *pix );
}
}
void KexiKIconTableEdit::handleCopyAction(const TQVariant& value, const TQVariant& visibleValue)
{
Q_UNUSED(value);
Q_UNUSED(visibleValue);
}
KEXI_CELLEDITOR_FACTORY_ITEM_IMPL(KexiKIconTableEditorFactoryItem, KexiKIconTableEdit)
#include "kexiblobtableedit.moc"