lyx_mirror/src/frontends/qt4/emptytable.C
Lars Gullik Bjønnes 12e5a52b92 Added initial qt4 work by Abdelrazak Younes
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13294 a592a061-630c-0410-9148-cb99ea01b6c8
2006-03-05 17:24:44 +00:00

112 lines
2.2 KiB
C

/**
* \file emptytable.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "emptytable.h"
#include <QPainter>
#include <QMouseEvent>
/**
* A simple widget for a quick "preview" in TabularCreateDialog
*/
unsigned int const cellsize = 20;
EmptyTable::EmptyTable(QWidget * parent, int rows, int columns)
: QTableWidget(rows, columns, parent)
{
resetCellSize();
setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
viewport()->resize(cellsize*rows,cellsize*columns);
}
QSize EmptyTable::sizeHint() const
{
return QSize(cellsize * (2+columnCount()), cellsize * (2+rowCount()));
}
void EmptyTable::resetCellSize()
{
for(int i=0; i<rowCount(); ++i)
setRowHeight(i, cellsize);
for(int i=0; i<columnCount(); ++i)
setColumnWidth(i, cellsize);
}
void EmptyTable::paintCell(QPainter * p, int row, int col)
{
int const x2 = columnWidth(col) - 1;
int const y2 = rowHeight(row) - 1;
p->fillRect(0, 0, x2, y2, QColor("white"));
p->drawLine(x2, 0, x2, y2);
p->drawLine(0, y2, x2, y2);
if (row + 1 != rowCount() || col + 1 != columnCount())
return;
// draw handle
int const step = cellsize / 5;
int const space = 4;
int x = cellsize - step;
int const y = cellsize - space;
int const ex = cellsize - space;
int ey = cellsize - step;
while (x > space) {
p->drawLine(x, y, ex, ey);
x -= step;
ey -= step;
}
}
void EmptyTable::setNumberColumns(int nr_cols)
{
if (nr_cols < 1)
return;
if (nr_cols == columnCount())
return;
setColumnCount(nr_cols);
resetCellSize();
updateGeometry();
emit colsChanged(nr_cols);
}
void EmptyTable::setNumberRows(int nr_rows)
{
if (nr_rows < 1)
return;
if (nr_rows == rowCount())
return;
setRowCount(nr_rows);
resetCellSize();
updateGeometry();
emit rowsChanged(nr_rows);
}
/*
void EmptyTable::mouseMoveEvent(QMouseEvent *ev)
{
int const x = ev->pos().x();
int const y = ev->pos().y();
if (x > 0)
setNumberColumns(x / cellsize + columnCount()-1);
if (y > 0)
setNumberRows(y / cellsize + rowCount()-1);
}
*/