/****************************************************************************
                             Hyper's CD Catalog
                A multiplatform qt and xml based catalog program
					     
 Author    : Peter Deak (hyperr@freemail.hu)
 License   : GPL
 Copyright : (C) 2003 Peter Deak
****************************************************************************/
#include "showcontent.h"

#include <qvariant.h>
#include <qpushbutton.h>
#include <qtextbrowser.h>
#include <qtoolbutton.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qimage.h>
#include <qpixmap.h>
#include <qlabel.h>
#include <qmessagebox.h>
#include <qfiledialog.h>

#include "icons.h"
#include "dbase.h"

/* 
 *  Constructs a ShowContent as a child of 'parent', with the 
 *  name 'name' and widget flags set to 'f'.
 *
 *  The dialog will by default be modeless, unless you set 'modal' to
 *  TRUE to construct a modal dialog.
 */
ShowContent::ShowContent( Node *node,QWidget* parent, const char* name, bool modal, WFlags fl )
    : QDialog( parent, name, modal, fl )
{
    mynode = NULL;
    parentnode = node;
    
    if ( !name )
	setName( "ShowContent" );
    setIcon(*get_t_showc_icon());

    ShowContentLayout = new QGridLayout( this, 1, 1, 11, 6, "ShowContentLayout"); 

    layout1 = new QHBoxLayout( 0, 0, 6, "layout1"); 

    closeButton = new QPushButton( this, "closeButton" );
    layout1->addWidget( closeButton );
    QSpacerItem* spacer1 = new QSpacerItem( 240, 20, QSizePolicy::Expanding, QSizePolicy::Minimum );
    QSpacerItem* spacer2 = new QSpacerItem( 240, 20, QSizePolicy::Expanding, QSizePolicy::Minimum );

    layout1->addItem( spacer1 );
    
    QLabel *sizel = new QLabel(this,"sizel");    
    sizel->setText(tr("%1 kByte").arg(0));

    layout1->addWidget( sizel );
    layout1->addItem( spacer2 );

    deleteButton = new QToolButton( this, "deleteButton" );
    deleteButton->setPixmap( *get_t_deletec_icon() );
    QToolTip::add( deleteButton , tr( "Remove the file content from the database. (Warning: Unrecoverable!)" ) );

    saveButton = new QToolButton( this, "saveButton" );
    saveButton->setPixmap( *get_t_save_icon() );
    QToolTip::add( saveButton , tr( "Save this content to a new file" ) );

    layout1->addWidget(   saveButton );    
    layout1->addWidget( deleteButton );

    ShowContentLayout->addLayout( layout1, 0, 0 );

    textBrowser = new QTextBrowser( this, "textBrowser" );
    
    if(node != NULL && node->type == HC_FILE)
     {
       setCaption( tr( "Content of %1" ).arg(node->getNameOf()) );
       mynode = ((DBFile *)(node->data))->prop;
       while(mynode != NULL)
        {
	 if(mynode->type == HC_CONTENT)
	    break;
	 mynode = mynode->next; 
	}
     }
    if(mynode != NULL)
     {
       textBrowser->setText(QString((const char *)((DBContent *)(mynode->data))->bytes));
       sizel->setText(tr("%1 kByte").arg(((DBContent *)(mynode->data))->storedSize / 1024.0));
     }  

    ShowContentLayout->addWidget( textBrowser, 1, 0 );
    languageChange();
    resize( QSize(413, 296).expandedTo(minimumSizeHint()) );
    connect(closeButton,SIGNAL(clicked()),this,SLOT(close()));
    connect(deleteButton,SIGNAL(clicked()),this,SLOT(deletenode()));
    connect(saveButton,SIGNAL(clicked()),this,SLOT(savenode()));
}

/*
 *  Destroys the object and frees any allocated resources
 */
ShowContent::~ShowContent()
{
    // no need to delete child widgets, Qt does it all for us
}

/*
 *  Sets the strings of the subwidgets using the current
 *  language.
 */
void ShowContent::languageChange()
 {

    closeButton->setText( tr( "Close" ) );
    deleteButton->setText( QString::null );
 }

int ShowContent::savenode(void)
 {
  FILE *f;
  QString fname,errormsg;
  
  if(parentnode != NULL && parentnode->type == HC_FILE)
     {
       mynode = ((DBFile *)(parentnode->data))->prop;
       while(mynode != NULL)
        {
	 if(mynode->type == HC_CONTENT)
	    break;
	 mynode = mynode->next; 
	}
     }
  else return 0;
  if(mynode == NULL) return 0; 
  
  fname =
   QFileDialog::getSaveFileName(parentnode->getNameOf(),NULL,this,
                                tr("Save content..."),tr("Select a filename below")); 
  if(!fname.isEmpty())
   {
     f = fopen(QFile::encodeName(fname),"w");
     if(f == NULL)
      {
       errormsg = tr("I can't rewrite the file: %1").arg(fname);
       QMessageBox::warning(this,tr("Error while saving..."),errormsg,tr("Ok"),0);
       return 0;
      }
     fseek(f,0,SEEK_SET);
     fwrite(((DBContent *)(mynode->data))->bytes,sizeof(char),
            ((DBContent *)(mynode->data))->storedSize,f);      
     fclose(f);				       
   }   				
  return 0;
 }

int ShowContent::deletenode(void)
 {
  Node *tmp = NULL,*willdelete = NULL;
  
  if(QMessageBox::warning(this,tr("Confirmation"),
         //tr("Are you sure want to delete this file's content from the database?"),
	   tr("Sure to delete this file's content from the database?"),
	 tr("Yes"),tr("No")) == 0)
    {	 
      if(parentnode == NULL || parentnode->type != HC_FILE) return 0;
      if((tmp = ((DBFile *)(parentnode->data))->prop) != NULL)
       {
         if(tmp->type == HC_CONTENT) //was the first child
          {
           ((DBFile *)(parentnode->data))->prop = tmp->next;
	   tmp->next = NULL;
	   delete tmp;
          }	 
	 else
	  {
	   while(tmp->next != NULL) 
	     {
	      if(tmp->next->type == HC_CONTENT)
	       {
	        willdelete = tmp->next;
		tmp->next = willdelete->next;
		willdelete->next = NULL;
		delete willdelete;
	       }
	      tmp = tmp->next;
	     }
	  } 
       }
      
      textBrowser->setText("");
      parentnode->touchDB();
    }
  return 0;
 }