Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 380 insertions, 0 deletions

diff --git a/libkscan/scandialog.cpp b/libkscan/scandialog.cpp
new file mode 100644
index 00000000..8a6689fa
--- /dev/null
+++ b/libkscan/scandialog.cpp
@@ -0,0 +1,380 @@
+/* This file is part of the KDE Project
+   Copyright (C) 2001 Nikolas Zimmermann <wildfox@kde.org>
+                      Klaas Freitag <freitag@suse.de>
+
+   This library 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 library 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 library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qstringlist.h>
+#include <qstrlist.h>
+#include <qtooltip.h>
+#include <qsizepolicy.h>
+#include <qapplication.h>
+#include <qcheckbox.h>
+
+#include <kglobal.h>
+#include <klocale.h>
+#include <kdebug.h>
+#include <kconfig.h>
+#include <ksimpleconfig.h>
+#include <kled.h>
+#include <kglobalsettings.h>
+#include <kscandevice.h>
+
+// libkscan stuff
+#include "scanparams.h"
+#include "devselector.h"
+#include "img_canvas.h"
+#include "previewer.h"
+#include "scandialog.h"
+
+#define SCANDIA_SPLITTER_SIZES "ScanDialogSplitter %1"
+
+extern "C" {
+    void * init_libkscan() {
+        return new ScanDialogFactory;
+    }
+}
+
+ScanDialogFactory::ScanDialogFactory( QObject *parent, const char *name )
+    : KScanDialogFactory( parent, name )
+{
+    setName( "ScanDialogFactory" );
+    KGlobal::locale()->insertCatalogue( QString::fromLatin1("libkscan") );
+}
+
+KScanDialog * ScanDialogFactory::createDialog( QWidget *parent,
+					       const char *name, bool modal)
+{
+    return new ScanDialog( parent, name, modal );
+}
+
+
+///////////////////////////////////////////////////////////////////
+
+
+ScanDialog::ScanDialog( QWidget *parent, const char *name, bool modal )
+   : KScanDialog( Tabbed, Close|Help, parent, name, modal ),
+     good_scan_connect(false)
+{
+    QVBox *page = addVBoxPage( i18n("&Scanning") );
+
+    splitter = new QSplitter( Horizontal, page, "splitter" );
+    Q_CHECK_PTR( splitter );
+
+    m_scanParams = 0;
+    m_device = new KScanDevice( this );
+    connect(m_device, SIGNAL(sigNewImage(QImage *, ImgScanInfo*)),
+            this, SLOT(slotFinalImage(QImage *, ImgScanInfo *)));
+
+    connect( m_device, SIGNAL(sigScanStart()), this, SLOT(slotScanStart()));
+    connect( m_device, SIGNAL(sigScanFinished(KScanStat)),
+	     this, SLOT(slotScanFinished(KScanStat)));
+    connect( m_device, SIGNAL(sigAcquireStart()), this, SLOT(slotAcquireStart()));
+    /* Create a preview widget to the right side of the splitter */
+    m_previewer = new Previewer( splitter );
+    Q_CHECK_PTR(m_previewer );
+
+    /* ... and connect to the selector-slots. They communicate user's
+     * selection to the scanner parameter engine */
+    /* a new preview signal */
+    connect( m_device, SIGNAL( sigNewPreview( QImage*, ImgScanInfo* )),
+             this, SLOT( slotNewPreview( QImage* )));
+
+    m_previewer->setEnabled( false ); // will be enabled in setup()
+
+    /* Options-page */
+    createOptionsTab( );
+
+}
+
+
+void ScanDialog::createOptionsTab( void )
+{
+
+   QVBox *page = addVBoxPage( i18n("&Options"));
+   setMainWidget(page);
+
+   QGroupBox *gb = new QGroupBox( 1, Qt::Horizontal, i18n("Startup Options"), page, "GB_STARTUP" );
+   QLabel *label = new QLabel( i18n( "Note: changing these options will affect the scan plugin on next start." ),
+			       gb );
+   label->setSizePolicy( QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed ) );
+
+   /* Checkbox for asking for scanner on startup */
+   cb_askOnStart = new QCheckBox( i18n( "&Ask for the scan device on plugin startup"), gb );
+   QToolTip::add( cb_askOnStart,
+		  i18n("You can uncheck this if you do not want to be asked which scanner to use on startup."));
+   Q_CHECK_PTR( cb_askOnStart );
+
+   /* Checkbox for network access */
+   cb_network = new QCheckBox( i18n( "&Query the network for scan devices"), gb );
+   QToolTip::add( cb_network,
+		  i18n("Check this if you want to query for configured network scan stations."));
+   Q_CHECK_PTR( cb_network );
+
+
+   /* Read settings for startup behavior */
+   KConfig *gcfg = KGlobal::config();
+   gcfg->setGroup(QString::fromLatin1(GROUP_STARTUP));
+   bool skipDialog  = gcfg->readBoolEntry( STARTUP_SKIP_ASK, false );
+   bool onlyLocal   = gcfg->readBoolEntry( STARTUP_ONLY_LOCAL, false );
+
+   /* Note: flag must be inverted because of question is 'the other way round' */
+   cb_askOnStart->setChecked( !skipDialog );
+   connect( cb_askOnStart, SIGNAL(toggled(bool)), this, SLOT(slotAskOnStartToggle(bool)));
+
+   cb_network->setChecked( !onlyLocal );
+   connect( cb_network, SIGNAL(toggled(bool)), this, SLOT(slotNetworkToggle(bool)));
+
+
+   QWidget *spaceEater = new QWidget( page );
+   Q_CHECK_PTR( spaceEater );
+   spaceEater->setSizePolicy( QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding) );
+
+}
+
+void ScanDialog::slotNetworkToggle( bool state)
+{
+   bool writestate = !state;
+
+   kdDebug(29000) << "slotNetworkToggle: Writing state " << writestate << endl;
+   KConfig *c = KGlobal::config();
+   c->setGroup(QString::fromLatin1(GROUP_STARTUP));
+   c->writeEntry( STARTUP_ONLY_LOCAL, writestate, true, true );
+}
+
+void ScanDialog::slotAskOnStartToggle(bool state)
+{
+   bool writestate = !state;
+
+   kdDebug(29000) << "slotAskOnStartToggle: Writing state " << writestate << endl;
+   KConfig *c = KGlobal::config();
+   c->setGroup(QString::fromLatin1(GROUP_STARTUP));
+   c->writeEntry( STARTUP_SKIP_ASK, writestate, true, true );
+}
+
+void ScanDialog::slotScanStart( )
+{
+   if( m_scanParams )
+   {
+      m_scanParams->setEnabled( false );
+      KLed *led = m_scanParams->operationLED();
+      if( led )
+      {
+	 led->setColor( Qt::red );
+	 led->setState( KLed::On );
+      }
+
+   }
+}
+
+void ScanDialog::slotAcquireStart( )
+{
+   if( m_scanParams )
+   {
+      KLed *led = m_scanParams->operationLED();
+      if( led )
+      {
+	 led->setColor( Qt::green );
+      }
+
+   }
+}
+
+void ScanDialog::slotScanFinished( KScanStat status )
+{
+   kdDebug(29000) << "Scan finished with status " << status << endl;
+   if( m_scanParams )
+   {
+      m_scanParams->setEnabled( true );
+      KLed *led = m_scanParams->operationLED();
+      if( led )
+      {
+	 led->setColor( Qt::green );
+	 led->setState( KLed::Off );
+      }
+
+   }
+}
+
+bool ScanDialog::setup()
+{
+   if( ! m_device )
+   {
+      good_scan_connect = false;
+      return(false);
+   }
+   // The scan device is now closed on closing the scan dialog. That means
+   // that more work to open it needs to be done in the setup slot like opening
+   // the selector if necessary etc.
+
+   if( m_scanParams )
+   {
+      /* if m_scanParams exist it means, that the dialog is already open */
+      return true;
+   }
+
+   m_scanParams = new ScanParams( splitter );
+   connect( m_previewer->getImageCanvas(), SIGNAL( newRect(QRect)),
+	    m_scanParams, SLOT(slCustomScanSize(QRect)));
+   connect( m_previewer->getImageCanvas(), SIGNAL( noRect()),
+	    m_scanParams, SLOT(slMaximalScanSize()));
+
+   connect( m_scanParams, SIGNAL( scanResolutionChanged( int, int )),
+	    m_previewer, SLOT( slNewScanResolutions( int, int )));
+
+
+   /* continue to attach a real scanner */
+   /* first, get the list of available devices from libkscan */
+   QStringList scannerNames;
+   QStrList backends = m_device->getDevices();;
+   QStrListIterator it( backends );
+
+   while ( it.current() ) {
+      scannerNames.append( m_device->getScannerName( it.current() ));
+      ++it;
+   }
+
+   /* ..if there are devices.. */
+   QCString configDevice;
+   good_scan_connect = true;
+   if( scannerNames.count() > 0 )
+   {
+      /* allow the user to select one */
+      DeviceSelector ds( this, backends, scannerNames );
+      configDevice = ds.getDeviceFromConfig( );
+
+      if( configDevice.isEmpty() || configDevice.isNull() )
+      {
+	 kdDebug(29000) << "configDevice is not valid - starting selector!" << configDevice << endl;
+	 if ( ds.exec() == QDialog::Accepted )
+	 {
+	    configDevice = ds.getSelectedDevice();
+	 }
+      }
+
+      /* If a device was selected, */
+      if( ! configDevice.isNull() )
+      {
+	 /* ..open it (init sane with that) */
+	 m_device->openDevice( configDevice );
+
+	 /* ..and connect to the gui (create the gui) */
+	 if ( !m_scanParams->connectDevice( m_device ) )
+	 {
+	    kdDebug(29000) << "ERR: Could not connect scan device" << endl;
+	    good_scan_connect = false;
+	 }
+      }
+   }
+
+   if( configDevice.isNull() || configDevice.isEmpty() )
+   {
+      /* No scanner found, open with information */
+      m_scanParams->connectDevice( 0L );
+      good_scan_connect = false;
+      /* Making the previewer gray */
+      /* disabling is much better than hiding for 'advertising' ;) */
+   }
+
+   /* Move the scan params to the left, for backward compatibility.
+    * However, having it on the right looks a bit better IMHO */
+   if( splitter && m_scanParams )
+      splitter->moveToFirst( m_scanParams );
+
+   if( good_scan_connect )
+   {
+      m_previewer->setEnabled( true );
+      m_previewer->setPreviewImage( m_device->loadPreviewImage() );
+      m_previewer->slConnectScanner( m_device );
+   }
+
+    /* set initial sizes */
+    setInitialSize( configDialogSize( GROUP_STARTUP ));
+
+    KConfig *kfg = KGlobal::config();
+    if( kfg )
+    {
+       QRect r = KGlobalSettings::desktopGeometry(this);
+
+       kfg->setGroup( GROUP_STARTUP );
+       /* Since this is a vertical splitter, only the width is important */
+       QString key = QString::fromLatin1( SCANDIA_SPLITTER_SIZES ).arg( r.width());
+       kdDebug(29000) << "Read Splitter-Sizes " << key  << endl;
+       splitter->setSizes( kfg->readIntListEntry( key ));
+    }
+
+   return true;
+}
+
+void ScanDialog::slotClose()
+{
+   /* Save the dialog start size to global configuration */
+   saveDialogSize( GROUP_STARTUP, true );
+
+   if( splitter )
+   {
+      KConfig *kfg = KGlobal::config();
+      if( kfg )
+      {
+         QRect r = KGlobalSettings::desktopGeometry(this);
+
+	 kfg->setGroup( GROUP_STARTUP );
+	 /* Since this is a vertical splitter, only the width is important */
+	 QString key = QString::fromLatin1( SCANDIA_SPLITTER_SIZES ).arg( r.width());
+	 kfg->writeEntry( key, splitter->sizes(), true, true);
+      }
+   }
+
+   if( m_scanParams )
+   {
+      delete m_scanParams;
+      m_scanParams =0;
+   }
+   if( m_device )
+      m_device->slCloseDevice();
+   else
+      kdDebug(29000) << "ERR: no device exists :(" << endl;
+      // bullshit happend
+   accept();
+}
+
+void ScanDialog::slotNewPreview( QImage *image )
+{
+    if( image )
+    {
+        m_previewImage = *image;
+        // hmmm - dont know, if conversion of the bit-depth is necessary.
+        // m_previewImage.convertDepth(32);
+
+        /* The previewer does not copy the image data ! */
+        m_previewer->newImage( &m_previewImage );
+    }
+
+}
+
+ScanDialog::~ScanDialog()
+{
+}
+
+void ScanDialog::slotFinalImage(QImage *image, ImgScanInfo *)
+{
+    emit finalImage(*image, nextId());
+}
+
+#include "scandialog.moc"