+++ /dev/null
-/****************************************************************************
-** $Id: qgridview.C,v 1.3 2003/08/23 00:16:39 leeming Exp $
-**
-** Implementation of QGridView class
-**
-** Created: 010523
-**
-** Copyright (C) 1992-2001 Trolltech AS. All rights reserved.
-**
-** This file is part of the widgets module of the Qt GUI Toolkit.
-**
-** This file may be distributed under the terms of the Q Public License
-** as defined by Trolltech AS of Norway and appearing in the file
-** LICENSE.QPL included in the packaging of this file.
-**
-** This file may be distributed and/or modified under the terms of the
-** GNU General Public License version 2 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.
-**
-** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
-** licenses may use this file in accordance with the Qt Commercial License
-** Agreement provided with the Software.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
-** information about Qt Commercial License Agreements.
-** See http://www.trolltech.com/qpl/ for QPL licensing information.
-** See http://www.trolltech.com/gpl/ for GPL licensing information.
-**
-** Contact info@trolltech.com if any conditions of this licensing are
-** not clear to you.
-**
-**********************************************************************/
-
-
-#include <config.h>
-
-#include "qgridview.h"
-
-#ifndef QT_NO_GRIDVIEW
-
-#include <qpainter.h>
-
-/*!
- \class QGridView qgridview.h
- \brief The QGridView class provides an abstract base for fixed-size
- grids.
-
- \ingroup abstractwidgets
-
- A grid view consists of a number of abstract cells organized in rows
- and columns. The cells have a fixed size and are identified with a
- row index and a column index. The top-left cell is in row 0, column
- 0. The bottom-right cell is in row numRows()-1, column numCols()-1.
-
- You can define \l numRows, \l numCols, \l cellWidth and
- \l cellHeight. Reimplement the pure virtual function paintCell() to
- draw the content of a cell.
-
- With ensureCellVisible(), you can ensure a certain cell is
- visible. With rowAt() and columnAt() you can find a cell based on
- the given x- and y-coordinates.
-
- If you need to monitor changes to the grid's dimensions (i.e. when
- numRows or numCols is changed), reimplement the dimensionChange()
- change handler.
-
- Note: the row, column indices are always given in the order, row
- (vertical offset) then column (horizontal offset). This order is the
- opposite of all pixel operations, which are given in the order x
- (horizontal offset), y (vertical offset).
-
- QGridView is a very simple abstract class based on QScrollView. It
- is designed to simplify the task of drawing many cells of the same
- size in a potentially scrollable canvas. If you need rows and
- columns in different sizes, use a QTable instead. If you need a
- simple list of items, use a QListBox. If you need to present
- hierachical data use a QListView, and if you need random objects at
- random positions, consider using either a QIconView or a QCanvas.
-
-*/
-
-
-/*!
- Constructs a grid view.
-
- The \a parent, \a name and widget flag, \a f, arguments are passed to the
- QScrollView constructor.
-*/
-QGridView::QGridView( QWidget *parent, const char *name, WFlags f )
- :QScrollView( parent, name ,f ),nrows(5),ncols(5),cellw(12),cellh(12)
-{
- viewport()->setBackgroundMode( PaletteBase );
- setBackgroundMode( PaletteBackground );
- viewport()->setFocusProxy( this );
-}
-
-/*!
- Destroys the grid view.
-*/
-QGridView::~QGridView()
-{
-}
-
-void QGridView::updateGrid()
-{
- resizeContents( ncols * cellw, nrows * cellh );
-}
-
-/*! \property QGridView::numRows
- \brief The number of rows in the grid
-
- \sa numCols
-*/
-void QGridView::setNumRows( int numRows )
-{
- int oldnrows = nrows;
- nrows = numRows;
- dimensionChange( oldnrows, ncols );
- updateGrid();
-}
-
-/*! \property QGridView::numCols
- \brief The number of columns in the grid
-
- \sa numRows
-*/
-void QGridView::setNumCols( int numCols )
-{
- int oldncols = ncols;
- ncols = numCols;
- dimensionChange( nrows, oldncols );
- updateGrid();
-}
-
-/*! \property QGridView::cellWidth
- \brief The width of a grid column
-
- All columns in a grid view have the same width.
-
- \sa cellHeight
-*/
-void QGridView::setCellWidth( int cellWidth )
-{
- cellw = cellWidth;
- updateGrid();
- updateContents( contentsX(), contentsY(), visibleWidth(), visibleHeight() );
-
-}
-
-/*! \property QGridView::cellHeight
- \brief The height of a grid row
-
- All rows in a grid view have the same height.
-
- \sa cellWidth
-*/
-void QGridView::setCellHeight( int cellHeight )
-{
- cellh = cellHeight;
- updateGrid();
- updateContents( contentsX(), contentsY(), visibleWidth(), visibleHeight() );
-
-}
-
-/*!
- Returns the geometry of cell (\a row, \a column) in the content
- coordinate system.
-
- \sa cellRect()
- */
-QRect QGridView::cellGeometry( int row, int column )
-{
- QRect r;
- if ( row >= 0 && row < nrows && column >= 0 && column < ncols )
- r.setRect( cellw * column, cellh * row, cellw, cellh );
- return r;
-}
-
-/*! Repaints cell (\a row, \a column).
-
- If \a erase is TRUE, Qt erases the area of the cell before the
- paintCell() call; otherwise no erasing takes place.
-
- \sa QWidget::repaint()
- */
-void QGridView::repaintCell( int row, int column, bool erase )
-{
- repaintContents( cellGeometry( row, column ), erase );
-}
-
-/*! Updates cell (\a row, \a column).
-
- \sa QWidget::update()
- */
-void QGridView::updateCell( int row, int column )
-{
- updateContents( cellGeometry( row, column ) );
-}
-
-/*!
- Ensure cell (\a row, \a column) is visible, scrolling the grid view
- if necessary.
- */
-void QGridView::ensureCellVisible( int row, int column )
-{
- QRect r = cellGeometry( row, column );
- ensureVisible( r.x(), r.y(), r.width(), r.height() );
-}
-
-/*! This function fills the \a cw pixels wide and \a ch pixels high
- rectangle starting at position (\a cx, \a cy) with the
- background color using the painter \a p.
-
- paintEmptyArea() is invoked by drawContents() to erase
- or fill unused areas.
-*/
-
-void QGridView::paintEmptyArea( QPainter *p, int cx ,int cy, int cw, int ch)
-{
- if ( gridSize().width() >= contentsWidth() && gridSize().height() >= contentsHeight() )
- return;
- // Region of the rect we should draw
- contentsToViewport( cx, cy, cx, cy );
- QRegion reg( QRect( cx, cy, cw, ch ) );
- // Subtract the table from it
- reg = reg.subtract( QRect( contentsToViewport( QPoint( 0, 0 ) ), gridSize() ) );
-
- // And draw the rectangles (transformed as needed)
- QArray<QRect> r = reg.rects();
- const QBrush &brush = colorGroup().brush(QColorGroup::Background);
- for ( int i = 0; i < (int)r.count(); ++i)
- p->fillRect( r[ i ], brush );
-}
-
-/*!\reimp
- */
-void QGridView::drawContents( QPainter *p, int cx, int cy, int cw, int ch )
-{
- int colfirst = columnAt( cx );
- int collast = columnAt( cx + cw );
- int rowfirst = rowAt( cy );
- int rowlast = rowAt( cy + ch );
-
- if ( rowfirst == -1 || colfirst == -1 ) {
- paintEmptyArea( p, cx, cy, cw, ch );
- return;
- }
-
- if ( collast < 0 || collast >= ncols )
- collast = ncols-1;
- if ( rowlast < 0 || rowlast >= nrows )
- rowlast = nrows-1;
-
- // Go through the rows
- for ( int r = rowfirst; r <= rowlast; ++r ) {
- // get row position and height
- int rowp = r * cellh;
-
- // Go through the columns in the row r
- // if we know from where to where, go through [colfirst, collast],
- // else go through all of them
- for ( int c = colfirst; c <= collast; ++c ) {
- // get position and width of column c
- int colp = c * cellw;
- // Translate painter and draw the cell
- p->translate( colp, rowp );
- paintCell( p, r, c );
- p->translate( -colp, -rowp );
- }
- }
-
- // Paint empty rects
- paintEmptyArea( p, cx, cy, cw, ch );
-}
-
-/*!
- \reimp
-
- (Implemented to get rid of a compiler warning.)
-*/
-void QGridView::drawContents( QPainter * )
-{
-}
-
-/*! \fn void QGridView::dimensionChange( int oldNumRows, int oldNumCols )
-
- This change handler is called whenever any of the grid's dimensions
- changes. \a oldNumRows and \a oldNumCols contain the old dimensions,
- numRows() and numCols() contain the new dimensions.
- */
-void QGridView::dimensionChange( int, int ) {}
-
-
-
-/*! \fn int QGridView::rowAt( int y ) const
-
- Returns the number of the row at position \a y. \a y must be given in
- content coordinates.
-
- \sa columnAt()
- */
-
-/*! \fn int QGridView::columnAt( int x ) const
-
- Returns the number of the column at position \a x. \a x must be
- given in content coordinates.
-
- \sa rowAt()
- */
-
-/*!
- \fn void QGridView::paintCell( QPainter *p, int row, int col )
-
- This pure virtual function is called to paint the single cell at
- (\a row, \a col) using painter \a p. The painter must be open when
- paintCell() is called and must remain open.
-
- The coordinate system is \link QPainter::translate() translated \endlink
- so that the origin is at the top-left corner of the cell to be
- painted, i.e. \e cell coordinates. Do not scale or shear the coordinate
- system (or if you do, restore the transformation matrix before you
- return).
-
- The painter is not clipped by default in order to get maximum
- efficiency. If you want clipping, use
-
- \code
- p->setClipRect( cellRect(), QPainter::CoordPainter );
- //... your drawing code
- p->setClipping( FALSE );
-
- \endcode
-
-*/
-
-/*! \fn QRect QGridView::cellRect() const
-
- Returns the geometry of a cell in a cell's coordinate system. This
- is a convenience function useful in paintCell(). It is equivalent to
- QRect( 0, 0, cellWidth(), cellHeight() ).
-
- \sa cellGeometry()
-
- */
-
-/*!\fn QSize QGridView::gridSize() const
-
- Returns the size of the grid in pixels.
-
- */
-
-#endif // QT_NO_GRIDVIEW
+++ /dev/null
-/**********************************************************************
-** $Id: qgridview.h,v 1.3 2004/12/14 11:05:44 leeming Exp $
-**
-** Definition of QGridView class
-**
-** Created: 2001.05.23
-**
-** Copyright (C) 1992-2001 Trolltech AS. All rights reserved.
-**
-** This file is part of the widgets module of the Qt GUI Toolkit.
-**
-** This file may be distributed under the terms of the Q Public License
-** as defined by Trolltech AS of Norway and appearing in the file
-** LICENSE.QPL included in the packaging of this file.
-**
-** This file may be distributed and/or modified under the terms of the
-** GNU General Public License version 2 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.
-**
-** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
-** licenses may use this file in accordance with the Qt Commercial License
-** Agreement provided with the Software.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
-** information about Qt Commercial License Agreements.
-** See http://www.trolltech.com/qpl/ for QPL licensing information.
-** See http://www.trolltech.com/gpl/ for GPL licensing information.
-**
-** Contact info@trolltech.com if any conditions of this licensing are
-** not clear to you.
-**
-**********************************************************************/
-
-#ifndef QGRIDVIEW_H
-#define QGRIDVIEW_H
-
-#include <qscrollview.h>
-
-#ifndef QT_NO_GRIDVIEW
-
-class QGridViewPrivate;
-
-class QGridView : public QScrollView
-{
- Q_OBJECT
- Q_PROPERTY( int numRows READ numRows WRITE setNumRows )
- Q_PROPERTY( int numCols READ numCols WRITE setNumCols )
- Q_PROPERTY( int cellWidth READ cellWidth WRITE setCellWidth )
- Q_PROPERTY( int cellHeight READ cellHeight WRITE setCellHeight )
-public:
-
- QGridView( QWidget *parent=0, const char *name=0, WFlags f=0 );
- ~QGridView();
-
- int numRows() const;
- virtual void setNumRows( int );
- int numCols() const;
- virtual void setNumCols( int );
-
- int cellWidth() const;
- virtual void setCellWidth( int );
- int cellHeight() const;
- virtual void setCellHeight( int );
-
- QRect cellRect() const;
- QRect cellGeometry( int row, int column );
- QSize gridSize() const;
-
- int rowAt( int y ) const;
- int columnAt( int x ) const;
-
- void repaintCell( int row, int column, bool erase=TRUE );
- void updateCell( int row, int column );
- void ensureCellVisible( int row, int column );
-
-protected:
- virtual void paintCell( QPainter *, int row, int col ) = 0;
- virtual void paintEmptyArea( QPainter *p, int cx, int cy, int cw, int ch );
-
- void drawContents( QPainter *p, int cx, int cy, int cw, int ch );
-
- virtual void dimensionChange( int, int );
-
-private:
- void drawContents( QPainter* );
- void updateGrid();
-
- int nrows;
- int ncols;
- int cellw;
- int cellh;
- QGridViewPrivate* d;
-
-private: // Disabled copy constructor and operator=
-#if defined(Q_DISABLE_COPY)
- QGridView( const QGridView & );
- QGridView &operator=( const QGridView & );
-#endif
-};
-
-inline int QGridView::cellWidth() const
-{ return cellw; }
-
-inline int QGridView::cellHeight() const
-{ return cellh; }
-
-inline int QGridView::rowAt( int y ) const
-{ return y / cellh; }
-
-inline int QGridView::columnAt( int x ) const
-{ return x / cellw; }
-
-inline int QGridView::numRows() const
-{ return nrows; }
-
-inline int QGridView::numCols() const
-{return ncols; }
-
-inline QRect QGridView::cellRect() const
-{ return QRect( 0, 0, cellw, cellh ); }
-
-inline QSize QGridView::gridSize() const
-{ return QSize( ncols * cellw, nrows * cellh ); }
-
-
-
-#endif // QT_NO_GRIDVIEW
-
-
-#endif // QTABLEVIEW_H
projects / features.git / commitdiff