lyx_mirror/src/frontends/qt4/InsertTableWidget.C

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/**
* \file InsertTableWidget.C
*
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Edwin Leuven
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "BufferView.h" // needed for lyxfunc
#include "lyxfunc.h"
#include "FuncStatus.h"
#include "funcrequest.h"
#include "LyXView.h"
#include "qt_helpers.h"
#include "InsertTableWidget.h"
#include <QMouseEvent>
#include <QString>
#include <QToolTip>
#include <QPainter>
namespace lyx {
namespace frontend {
InsertTableWidget::InsertTableWidget(LyXView & lyxView, QWidget * parent)
: QWidget(parent, Qt::Popup), colwidth_(20), rowheight_(12), lyxView_(lyxView)
{
init();
setMouseTracking(true);
}
void InsertTableWidget::init()
{
rows_ = 5;
cols_ = 5;
bottom_ = 0;
right_ = 0;
underMouse_ = false;
}
void InsertTableWidget::show(bool show)
{
if (!show)
return;
init();
resetGeometry();
setVisible(true);
// emit signal
visible(true);
}
void InsertTableWidget::resetGeometry()
{
QPoint p = parentWidget()->mapToGlobal(parentWidget()->geometry().bottomLeft());
setGeometry(p.x() - parentWidget()->pos().x(),
p.y() - parentWidget()->pos().y(),
cols_ * colwidth_ + 1, rows_ * rowheight_ + 1);
}
void InsertTableWidget::mouseMoveEvent(QMouseEvent * event)
{
// do this ourselves because when the mouse leaves the app
// we get an enter event (ie underMouse() is true)!!
underMouse_ = geometry().contains(event->globalPos());
if (!underMouse_) {
bottom_ = 0;
right_ = 0;
update();
return;
}
int const r0 = right_;
int const b0 = bottom_;
right_ = event->x() / colwidth_ + 1;
bottom_ = event->y() / rowheight_ + 1;
if (bottom_ == rows_) {
++rows_;
resetGeometry();
}
if (right_ == cols_) {
++cols_;
resetGeometry();
}
if (bottom_ != b0 || right_ != r0) {
update();
QString const status = QString("%1x%2").arg(bottom_).arg(right_);
QToolTip::showText(event->globalPos(), status , this);
}
}
void InsertTableWidget::mouseReleaseEvent(QMouseEvent * /*event*/)
{
if (underMouse_) {
QString const data = QString("%1 %2").arg(bottom_).arg(right_);
lyxView_.dispatch(FuncRequest(LFUN_TABULAR_INSERT, fromqstr(data)));
}
// emit signal
visible(false);
close();
}
void InsertTableWidget::mousePressEvent(QMouseEvent * /*event*/)
{
// swallow this one
}
void InsertTableWidget::paintEvent(QPaintEvent * /*event*/)
{
drawGrid(rows_, cols_, Qt::white);
if (underMouse_)
drawGrid(bottom_, right_, Qt::darkBlue);
}
void InsertTableWidget::drawGrid(int const rows, int const cols, Qt::GlobalColor const color)
{
QPainter painter(this);
painter.setPen(Qt::darkGray);
painter.setBrush(color);
for (int r = 0 ; r < rows ; ++r ) {
for (int c = 0 ; c < cols ; ++c ) {
QRect rectangle(c * colwidth_, r * rowheight_, colwidth_, rowheight_);
painter.drawRect(rectangle);
}
}
}
void InsertTableWidget::updateParent()
{
bool status = lyx::getStatus(FuncRequest(LFUN_TABULAR_INSERT)).enabled();
parentWidget()->setEnabled(status);
}
} // namespace frontend
} // namespace lyx
#include "InsertTableWidget_moc.cpp"