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example4.cpp

Example 4

This example shows:

• Shows all types of text/pixmap/cell alignment
• Shows how to give cells of the non-default background color.
• Changes the behavior of the table in the following way:
  • Only one cell can be selected at a time. Cells in the first column cannot be selected at all.
  • Double clicking on a cell will enable editing the cell's text, instead clicking the middle mouse-button.
• Shows how to change the palette of the tabular widget
• Different cell types (classic tabular cells with text and/or pixmap), cells with integer values (and according input restriction), combo box typ cells

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The header file:

#ifndef _EXAMPLE4_H
#define _EXAMPLE4_H

#include <qpoint.h>

#include <qdbt/qdbttabular.h>

class QWidget;
class QLabel;

class Example4Tabular : public QdbtTabular
{
  Example4Tabular( const Example4Tabular & );
  void operator=( const Example4Tabular & );

public:
  Example4Tabular( QWidget *parent = 0, const char *name = 0, WFlags f = 0 );
  virtual ~Example4Tabular();

protected:
  void mouseDoubleClickEvent( QMouseEvent * );
};

class Example4 : public QWidget
{
  Example4( const Example4 & );
  void operator=( const Example4 & );

public:
  Example4( QWidget *parent = 0, const char *name = 0, WFlags f = 0 );
  virtual ~Example4();
};

#endif

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The source file:

#include <qapplication.h>
#include <qlayout.h>
#include <qpushbutton.h>
#include <qlabel.h>
#include <qpixmap.h>

#include <qdbt/qdbttabcell.h>
#include <qdbt/qdbtintcell.h>
#include <qdbt/qdbttextcell.h>
#include <qdbt/qdbtcombocell.h>
#include <qdbt/qdbtsection.h>
#include <qdbt/qdbtselection.h>
#include "example4.h"

const QColor base( 230, 200, 200 );

Example4Tabular::Example4Tabular( QWidget *parent, const char *name,
                                  WFlags f ) :
  QdbtTabular( parent, name, f )
{
  QColorGroup cg = colorGroup();
  QColorGroup newCg( black, base, base.light(),
                     base.dark(), base, black, base.dark(110) );
  setPalette( QPalette( newCg, newCg, newCg ) );

  QdbtNoCell defCell;
  setDefaultCell( defCell );
}

Example4Tabular::~Example4Tabular()
{
}

void Example4Tabular::mouseDoubleClickEvent( QMouseEvent *e )
{
  int rowClicked = findRow( e->y() );
  int colClicked = findCol( e->x() );
  if ( rowClicked != -1 && colClicked > 0 )
  {
    editCell( rowClicked, colClicked );
  }
}


Example4::Example4( QWidget *parent, const char *name, WFlags f ) :
  QWidget( parent, name, f )
{
  // Set the caption of the window
  setCaption( "Example 4" );

  // The Layout managers
  QGridLayout *layout  = new QGridLayout( this, 2, 1, 5 );
  QBoxLayout  *buttons = new QBoxLayout( QBoxLayout::LeftToRight );
  
  // create three tables
  Example4Tabular *tabular = new Example4Tabular( this );

  // set the number of row/columns
  tabular->setDimensions( 10, 3 );
  
  // let's test the insertCol function, just for fun.
  tabular->insertCol( 3 );
 
  // let's test the insertCol function, just for fun.
  tabular->insertRow( 5 );

  // set the minimum size of the table
  tabular->setMinimumSize( 100, 100 );

  // select cell instead of rows ...
  tabular->selectByRow( FALSE );

  // ... and just one of them
  tabular->setMultiSelect( FALSE );
  
  // set the font of the heading
  tabular->setHeaderFont( QFont( "helvetica", 16, QFont::Bold ) );

  // set the font of the cells
  tabular->setCellFont( QFont( "helvetica", 12, QFont::Normal ) );

  // Load the folder pixmap (No error checking!)
  QPixmap folder;
  folder.load( "folder3d.xpm" );

  QdbtSection *section;
  section = tabular->section( 0 );
  section->setResizable( FALSE );
  section = tabular->section( 1 );
  section->setText( "Left" );
  section = tabular->section( 2 );
  section->setText( "Center" );
  section->setAlignment( AlignCenter );
  section = tabular->section( 3 );
  section->setText( "Right" );
  section->setAlignment( AlignRight );

  QdbtTableCell           cell;
  QdbtTextCell            textCell;
  QdbtIntCell             intCell;
  QdbtComboCell           comboCell;
  QdbtBorderlessComboCell borderlessComboCell;
  cell.setEditable( FALSE );
//    cell.setSelectable(FALSE);
  textCell.setEditable( TRUE );
//    textCell.setSelectable(FALSE);
  intCell.setEditable( TRUE );
//    intCell.setSelectable(FALSE);

  // first column
  cell.setAlignment( AlignLeft );
  textCell.setAlignment( AlignLeft );
  intCell.setAlignment( AlignLeft );
  comboCell.setAlignment( AlignLeft );
  borderlessComboCell.setAlignment( AlignLeft );
  cell.setPixmap( 0 );
  cell.setBackground( tabular->colorGroup().base().dark(120) );
  cell.setText( "Text only" );
  tabular->changeCell( &cell, 0, 0 );
  cell.setText( "Pixmap only" );
  tabular->changeCell( &cell, 1, 0 );
  cell.setText( "Pimap left" );
  tabular->changeCell( &cell, 2, 0 );
  cell.setText( "Pimap right" );
  tabular->changeCell( &cell, 3, 0 );
  cell.setText( "Pimap top" );
  tabular->changeCell( &cell, 4, 0 );
  cell.setText( "Pimap bottom" );
  tabular->changeCell( &cell, 5, 0 );

  cell.setText( "Text Cell" );
  tabular->changeCell( &cell, 6, 0 );
  cell.setText( "Integer Cell" );
  tabular->changeCell( &cell, 7, 0 );
  cell.setText( "Combo Cell" );
  tabular->changeCell( &cell, 8, 0 );
  cell.setText( "Borderless\nCombo Cell" );
  tabular->changeCell( &cell, 9, 0 );

  cell.setText( "No Cell" );
  tabular->changeCell( &cell, 10, 0 );

  cell.setEditable( TRUE );
  
  // second column
  cell.setBackground( tabular->colorGroup().base() );
  cell.setText( "left" );
  tabular->changeCell( &cell, 0, 1 );
  cell.setText( 0 );
  cell.setPixmap( &folder );
  cell.setPixmapAlignment( AlignLeft );
  tabular->changeCell( &cell, 1, 1 );
  cell.setText( "left" );
  tabular->changeCell( &cell, 2, 1 );
  cell.setPixmapAlignment( AlignRight );
  tabular->changeCell( &cell, 3, 1 );
  cell.setPixmapAlignment( AlignTop );
  tabular->changeCell( &cell, 4, 1 );
  cell.setPixmapAlignment( AlignBottom );
  tabular->changeCell( &cell, 5, 1 );

  tabular->QdbtBaseTabular::changeCell( &textCell, 6, 1 );
  tabular->QdbtBaseTabular::changeCell( &intCell, 7, 1 );
  tabular->QdbtBaseTabular::changeCell( &comboCell, 8, 1 );
  tabular->QdbtBaseTabular::changeCell( &borderlessComboCell, 9, 1 );

  // third column
  cell.setAlignment( AlignCenter );
  textCell.setAlignment( AlignCenter );
  intCell.setAlignment( AlignCenter );
  comboCell.setAlignment( AlignCenter );
  borderlessComboCell.setAlignment( AlignCenter );
  cell.setText( "center" );
  cell.setPixmap( 0 );
  tabular->changeCell( &cell, 0, 2 );
  cell.setText( 0 );
  cell.setPixmap( &folder );
  cell.setPixmapAlignment( AlignLeft );
  tabular->changeCell( &cell, 1, 2 );
  cell.setText( "center" );
  tabular->changeCell( &cell, 2, 2 );
  cell.setPixmapAlignment( AlignRight );
  tabular->changeCell( &cell, 3, 2 );
  cell.setPixmapAlignment( AlignTop );
  tabular->changeCell( &cell, 4, 2 );
  cell.setPixmapAlignment( AlignBottom );
  tabular->changeCell( &cell, 5, 2 );

  tabular->QdbtBaseTabular::changeCell( &textCell, 6, 2 );
  tabular->QdbtBaseTabular::changeCell( &intCell, 7, 2 );
  tabular->QdbtBaseTabular::changeCell( &comboCell, 8, 2 );
  tabular->QdbtBaseTabular::changeCell( &borderlessComboCell, 9, 2 );

  // forth column
  cell.setAlignment( AlignRight );
  textCell.setAlignment( AlignRight );
  intCell.setAlignment( AlignRight );
  comboCell.setAlignment( AlignRight );
  borderlessComboCell.setAlignment( AlignRight );
  cell.setText( "right" );
  cell.setPixmap( 0 );
  tabular->changeCell( &cell, 0, 3 );
  cell.setText( 0 );
  cell.setPixmap( &folder );
  cell.setPixmapAlignment( AlignRight );
  tabular->changeCell( &cell, 1, 3 );
  cell.setText( "right" );
  cell.setPixmapAlignment( AlignLeft );
  tabular->changeCell( &cell, 2, 3 );
  cell.setPixmapAlignment( AlignRight );
  tabular->changeCell( &cell, 3, 3 );
  cell.setPixmapAlignment( AlignTop );
  tabular->changeCell( &cell, 4, 3 );
  cell.setPixmapAlignment( AlignBottom );
  tabular->changeCell( &cell, 5, 3 );

  tabular->QdbtBaseTabular::changeCell( &textCell, 6, 3 );
  tabular->QdbtBaseTabular::changeCell( &intCell, 7, 3 );
  tabular->QdbtBaseTabular::changeCell( &comboCell, 8, 3 );
  tabular->QdbtBaseTabular::changeCell( &borderlessComboCell, 9, 3 );


  tabular->setColumnWidth( 0, tabular->columnWidthHint(0) );
  tabular->setColumnWidth( 1, tabular->columnWidthHint(1)+100 );
  tabular->setColumnWidth( 2, tabular->columnWidthHint(2)+100 );
  tabular->setColumnWidth( 3, tabular->columnWidthHint(3)+100 );

  // Create the close button
  QPushButton *close  = new QPushButton( "Close", this );

  // Set its minimum sizes
  close->setMinimumSize( close->sizeHint() );

  // Add Widgets and layouts to the layout-manager
  layout->addWidget( tabular, 0, 0 );
  layout->addLayout( buttons, 1, 0 );
  layout->setColStretch( 0, 1 ); // make the table strechable
  layout->setRowStretch( 0, 1 );

  // Add the Widget to the button layout
  buttons->addStretch( 1 );
  buttons->addWidget( close );

  // don't forget to activate the top layout manager
  layout->activate();

  // Let the close button quit the application
  connect( close, SIGNAL( clicked() ), qApp, SLOT( quit() ) );
  
  // Resize the widget to its minimal size
  resize( layout->mainWidget()->sizeHint() );
}

Example4::~Example4()
{
}

int main( int argc, char **argv )
{
  QApplication app( argc, argv );
  Example4 example;
  app.setMainWidget( &example );
  example.resize( 640, 340 );
  example.show();
  return app.exec();
}

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