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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqgridview.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/widgets/tqgridview.cpp | 374 |
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diff --git a/tqtinterface/qt4/src/widgets/tqgridview.cpp b/tqtinterface/qt4/src/widgets/tqgridview.cpp deleted file mode 100644 index d4c1638..0000000 --- a/tqtinterface/qt4/src/widgets/tqgridview.cpp +++ /dev/null @@ -1,374 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQGridView class -** -** Created : 010523 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - - -#include "tqgridview.h" - -#ifndef TQT_NO_GRIDVIEW - -#include "tqpainter.h" - -/*! - \class TQGridView tqgridview.h - \brief The TQGridView 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 contents 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 and 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). - - TQGridView is a very simple abstract class based on TQScrollView. 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 with different sizes, use a TQTable instead. If you need a - simple list of items, use a TQListBox. If you need to present - hierachical data use a TQListView, and if you need random objects - at random positions, consider using either a TQIconView or a - TQCanvas. -*/ - - -/*! - Constructs a grid view. - - The \a parent, \a name and widget flag, \a f, arguments are passed - to the TQScrollView constructor. -*/ -TQGridView::TQGridView( TQWidget *parent, const char *name, WFlags f ) - :TQScrollView( parent, name, (WFlags)(f | TQt::WStaticContents) ), - nrows( 5 ), ncols( 5 ), cellw( 12 ), cellh( 12 ) -{ - viewport()->setBackgroundMode( TQt::PaletteBase ); - setBackgroundMode( TQt::PaletteBackground, TQt::PaletteBase ); - viewport()->setFocusProxy( this ); -} - -/*! - Destroys the grid view. -*/ -TQGridView::~TQGridView() -{ -} - -void TQGridView::updateGrid() -{ - resizeContents( ncols * cellw, nrows * cellh ); -} - -/*! - \property TQGridView::numRows - \brief The number of rows in the grid - - \sa numCols -*/ -void TQGridView::setNumRows( int numRows ) -{ - int oldnrows = nrows; - nrows = numRows; - dimensionChange( oldnrows, ncols ); - updateGrid(); -} - -/*! - \property TQGridView::numCols - \brief The number of columns in the grid - - \sa numRows -*/ -void TQGridView::setNumCols( int numCols ) -{ - int oldncols = ncols; - ncols = numCols; - dimensionChange( nrows, oldncols ); - updateGrid(); -} - -/*! - \property TQGridView::cellWidth - \brief The width of a grid column - - All columns in a grid view have the same width. - - \sa cellHeight -*/ -void TQGridView::setCellWidth( int cellWidth ) -{ - cellw = cellWidth; - updateGrid(); - updateContents(); -} - -/*! - \property TQGridView::cellHeight - \brief The height of a grid row - - All rows in a grid view have the same height. - - \sa cellWidth -*/ -void TQGridView::setCellHeight( int cellHeight ) -{ - cellh = cellHeight; - updateGrid(); - updateContents(); -} - -/*! - Returns the tqgeometry of cell (\a row, \a column) in the content - coordinate system. - - \sa cellRect() - */ -TQRect TQGridView::cellGeometry( int row, int column ) -{ - TQRect 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, TQt erases the area of the cell before the - paintCell() call; otherwise no erasing takes place. - - \sa TQWidget::tqrepaint() -*/ -void TQGridView::repaintCell( int row, int column, bool erase ) -{ - repaintContents( cellGeometry( row, column ), erase ); -} - -/*! - Updates cell (\a row, \a column). - - \sa TQWidget::update() -*/ -void TQGridView::updateCell( int row, int column ) -{ - updateContents( cellGeometry( row, column ) ); -} - -/*! - Ensures cell (\a row, \a column) is visible, scrolling the grid - view if necessary. -*/ -void TQGridView::ensureCellVisible( int row, int column ) -{ - TQRect 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 TQGridView::paintEmptyArea( TQPainter *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 ); - TQRegion reg( TQRect( cx, cy, cw, ch ) ); - // Subtract the table from it - reg = reg.subtract( TQRect( contentsToViewport( TQPoint( 0, 0 ) ), gridSize() ) ); - - // And draw the rectangles (transformed as needed) -#ifdef USE_QT4 - QVector<QRect> r; -#else // USE_QT4 - TQMemArray<TQRect> r; -#endif // USE_QT4 - r = reg.rects(); - const TQBrush &brush = backgroundBrush(); - for ( int i = 0; i < (int)r.count(); ++i) - p->fillRect( r[ i ], brush ); -} - -/*!\reimp - */ -void TQGridView::drawContents( TQPainter *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 TQGridView::drawContents( TQPainter * ) -{ -} - -/*! - \fn void TQGridView::dimensionChange( int oldNumRows, int oldNumCols ) - - This change handler is called whenever any of the grid's - dimensions change. \a oldNumRows and \a oldNumCols contain the - old dimensions, numRows() and numCols() contain the new - dimensions. -*/ -void TQGridView::dimensionChange( int, int ) {} - - - -/*! - \fn int TQGridView::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 TQGridView::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 TQGridView::paintCell( TQPainter *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 TQPainter::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(), TQPainter::CoordPainter ); - //... your drawing code - p->setClipping( FALSE ); - - \endcode -*/ - -/*! - \fn TQRect TQGridView::cellRect() const - - Returns the tqgeometry of a cell in a cell's coordinate system. This - is a convenience function useful in paintCell(). It is equivalent - to TQRect( 0, 0, cellWidth(), cellHeight() ). - - \sa cellGeometry() - -*/ - -/*! - \fn TQSize TQGridView::gridSize() const - - Returns the size of the grid in pixels. - -*/ - -#endif // TQT_NO_GRIDVIEW |