void KviStatusBar::recalcMinimumHeight()
{
int iSize = 18;
int iHeight = m_pMessageLabel->sizeHint().height();
if(iHeight > iSize)
iSize = iHeight;
for(KviStatusBarApplet * pApplet = m_pAppletList->last(); pApplet; pApplet = m_pAppletList->prev())
{
iHeight = pApplet->sizeHint().height();
if(iHeight > iSize)
iSize = iHeight;
}
iSize += (VMARGIN * 2) + RICHTEXTLABELTRICK;
if(m_iLastMinimumHeight != iSize)
{
m_iLastMinimumHeight = iSize;
setMinimumHeight(iSize);
QLayout * l = layout();
if(l)
{
if(l->inherits("QBoxLayout"))
((QBoxLayout *)l)->addStrut(iSize);
}
}
}
/*!
Print the legend into a given rectangle.
\param plot Plot widget
\param painter Painter
\param rect Bounding rectangle
*/
void QwtPlotRenderer::renderLegend( const QwtPlot *plot,
QPainter *painter, const QRectF &rect ) const
{
if ( !plot->legend() || plot->legend()->isEmpty() )
return;
QLayout *l = plot->legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits( "QwtDynGridLayout" ) )
return;
QwtDynGridLayout *legendLayout = ( QwtDynGridLayout * )l;
uint numCols = legendLayout->columnsForWidth( rect.width() );
QList<QRect> itemRects =
legendLayout->layoutItems( rect.toRect(), numCols );
int index = 0;
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipRect( itemRects[index] );
renderLegendItem( plot, painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
void QwtPlot::printLegend(QPainter *painter, const QRect &rect) const
{
if ( !d_legend || d_legend->isEmpty() )
return;
QLayout *l = d_legend->contentsWidget()->layout();
if ( l == 0 || !l->inherits("QwtDynGridLayout") )
return;
QwtDynGridLayout *legendLayout = (QwtDynGridLayout *)l;
uint numCols = legendLayout->columnsForWidth(rect.width());
QValueList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
int index = 0;
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator)
{
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipping(TRUE);
QwtPainter::setClipRect(painter, itemRects[index]);
printLegendItem(painter, w, itemRects[index]);
index++;
painter->restore();
}
}
}
/*!
\brief Insert a legend
If the position legend is \c QwtPlot::LeftLegend or \c QwtPlot::RightLegend
the legend will be organized in one column from top to down.
Otherwise the legend items will be placed in a table
with a best fit number of columns from left to right.
If pos != QwtPlot::ExternalLegend the plot widget will become
parent of the legend. It will be deleted when the plot is deleted,
or another legend is set with insertLegend().
\param legend Legend
\param pos The legend's position. For top/left position the number
of colums will be limited to 1, otherwise it will be set to
unlimited.
\param ratio Ratio between legend and the bounding rect
of title, canvas and axes. The legend will be shrinked
if it would need more space than the given ratio.
The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0
it will be reset to the default ratio.
The default vertical/horizontal ratio is 0.33/0.5.
\sa legend(), QwtPlotLayout::legendPosition(),
QwtPlotLayout::setLegendPosition()
*/
void QwtPlot::insertLegend(QwtLegend *legend,
QwtPlot::LegendPosition pos, double ratio)
{
d_data->layout->setLegendPosition(pos, ratio);
if ( legend != d_data->legend )
{
if ( d_data->legend && d_data->legend->parent() == this )
delete d_data->legend;
d_data->legend = legend;
if ( d_data->legend )
{
if ( pos != ExternalLegend )
{
if ( d_data->legend->parent() != this )
{
#if QT_VERSION < 0x040000
d_data->legend->reparent(this, QPoint(0, 0));
#else
d_data->legend->setParent(this);
#endif
}
}
const QwtPlotItemList& itmList = itemList();
for ( QwtPlotItemIterator it = itmList.begin();
it != itmList.end(); ++it )
{
(*it)->updateLegend(d_data->legend);
}
QLayout *l = d_data->legend->contentsWidget()->layout();
if ( l && l->inherits("QwtDynGridLayout") )
{
QwtDynGridLayout *tl = (QwtDynGridLayout *)l;
switch(d_data->layout->legendPosition())
{
case LeftLegend:
case RightLegend:
tl->setMaxCols(1); // 1 column: align vertical
break;
case TopLegend:
case BottomLegend:
tl->setMaxCols(0); // unlimited
break;
case ExternalLegend:
break;
}
}
}
updateTabOrder();
}
updateLayout();
}
void replaceWidget(QWidget *a, QWidget *b)
{
if(!a)
return;
QLayout *lo = rw_findLayoutOf(a);
if(!lo)
return;
//printf("decided on this: %p\n", lo);
if(lo->inherits("QBoxLayout")) {
QBoxLayout *bo = (QBoxLayout *)lo;
int n = bo->findWidget(a);
bo->insertWidget(n+1, b);
delete a;
}
}
/*!
Specify the position of the legend within the widget.
If the position legend is \c QwtPlot::Left or \c QwtPlot::Right
the legend will be organized in one column from top to down.
Otherwise the legend items will be placed be placed in a table
with a best fit number of columns from left to right.
\param pos The legend's position. Valid values are \c QwtPlot::Left,
\c QwtPlot::Right, \c QwtPlot::Top, \c QwtPlot::Bottom.
\param ratio Ratio between legend and the bounding rect
of title, canvas and axes. The legend will be shrinked
if it would need more space than the given ratio.
The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0
it will be reset to the default ratio.
The default vertical/horizontal ratio is 0.33/0.5.
\sa QwtPlot::legendPosition(), QwtPlotLayout::setLegendPosition()
*/
void QwtPlot::setLegendPosition(QwtPlot::Position pos, double ratio)
{
if (pos != d_layout->legendPosition())
{
d_layout->setLegendPosition(pos, ratio);
QLayout *l = d_legend->contentsWidget()->layout();
if ( l && l->inherits("QwtDynGridLayout") )
{
QwtDynGridLayout *tl = (QwtDynGridLayout *)l;
if ( d_layout->legendPosition() == QwtPlot::Top ||
d_layout->legendPosition() == QwtPlot::Bottom )
{
tl->setMaxCols(0); // unlimited
}
else
tl->setMaxCols(1); // 1 column: align vertical
}
updateLayout();
updateTabOrder();
}
}
void QwtPlot::printLegend(QPainter *painter, const QRect &rect) const
{
if ( !legend() || legend()->isEmpty() )
return;
QLayout *l = legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits("QwtDynGridLayout") )
return;
QwtDynGridLayout *legendLayout = (QwtDynGridLayout *)l;
uint numCols = legendLayout->columnsForWidth(rect.width());
#if QT_VERSION < 0x040000
QValueList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#else
QList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#endif
int index = 0;
#if QT_VERSION < 0x040000
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator) {
#else
for ( int i = 0; i < legendLayout->count(); i++ ) {
QLayoutItem *item = legendLayout->itemAt(i);
#endif
QWidget *w = item->widget();
if ( w ) {
painter->save();
painter->setClipping(true);
QwtPainter::setClipRect(painter, itemRects[index]);
printLegendItem(painter, w, itemRects[index]);
index++;
painter->restore();
}
}
}
/*!
Print the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPlot::printLegendItem(QPainter *painter,
const QWidget *w, const QRect &rect) const
{
if ( w->inherits("QwtLegendItem") ) {
QwtLegendItem *item = (QwtLegendItem *)w;
painter->setFont(item->font());
item->drawItem(painter, rect);
}
}
/*!
\brief Paint a scale into a given rectangle.
Paint the scale into a given rectangle.
\param painter Painter
\param axisId Axis
\param startDist Start border distance
\param endDist End border distance
\param baseDist Base distance
\param rect Bounding rectangle
*/
void QwtPlot::printScale(QPainter *painter,
int axisId, int startDist, int endDist, int baseDist,
const QRect &rect) const
{
if (!axisEnabled(axisId))
return;
const QwtScaleWidget *scaleWidget = axisWidget(axisId);
if ( scaleWidget->isColorBarEnabled()
&& scaleWidget->colorBarWidth() > 0) {
const QwtMetricsMap map = QwtPainter::metricsMap();
QRect r = map.layoutToScreen(rect);
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
scaleWidget->drawColorBar(painter, scaleWidget->colorBarRect(r));
const int off = scaleWidget->colorBarWidth() + scaleWidget->spacing();
if ( scaleWidget->scaleDraw()->orientation() == Qt::Horizontal )
baseDist += map.screenToLayoutY(off);
else
baseDist += map.screenToLayoutX(off);
}
QwtScaleDraw::Alignment align;
int x, y, w;
switch(axisId) {
case yLeft: {
x = rect.right() - baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case yRight: {
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::RightScale;
break;
}
case xTop: {
x = rect.left() + startDist;
y = rect.bottom() - baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case xBottom: {
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
scaleWidget->drawTitle(painter, align, rect);
painter->save();
painter->setFont(scaleWidget->font());
QPen pen = painter->pen();
pen.setWidth(scaleWidget->penWidth());
painter->setPen(pen);
QwtScaleDraw *sd = (QwtScaleDraw *)scaleWidget->scaleDraw();
const QPoint sdPos = sd->pos();
const int sdLength = sd->length();
sd->move(x, y);
sd->setLength(w);
#if QT_VERSION < 0x040000
sd->draw(painter, scaleWidget->palette().active());
#else
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup(QPalette::Active);
sd->draw(painter, palette);
#endif
// reset previous values
sd->move(sdPos);
sd->setLength(sdLength);
painter->restore();
}
/*!
Print the canvas into a given rectangle.
\param painter Painter
\param map Maps mapping between plot and paint device coordinates
\param boundingRect Bounding rectangle
\param canvasRect Canvas rectangle
\param pfilter Print filter
\sa QwtPlotPrintFilter
*/
void QwtPlot::printCanvas(QPainter *painter,
const QRect &boundingRect, const QRect &canvasRect,
const QwtScaleMap map[axisCnt], const QwtPlotPrintFilter &pfilter) const
{
if ( pfilter.options() & QwtPlotPrintFilter::PrintBackground ) {
QBrush bgBrush;
#if QT_VERSION >= 0x040000
bgBrush = canvas()->palette().brush(backgroundRole());
#else
QColorGroup::ColorRole role =
QPalette::backgroundRoleFromMode( backgroundMode() );
bgBrush = canvas()->colorGroup().brush( role );
#endif
QRect r = boundingRect;
if ( !(pfilter.options() & QwtPlotPrintFilter::PrintFrameWithScales) ) {
r = canvasRect;
#if QT_VERSION >= 0x040000
// Unfortunately the paint engines do no always the same
const QPaintEngine *pe = painter->paintEngine();
if ( pe ) {
switch(painter->paintEngine()->type() ) {
case QPaintEngine::Raster:
case QPaintEngine::X11:
break;
default:
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
break;
}
}
#else
if ( painter->device()->isExtDev() ) {
r.setWidth(r.width() - 1);
r.setHeight(r.height() - 1);
}
#endif
}
QwtPainter::fillRect(painter, r, bgBrush);
}
if ( pfilter.options() & QwtPlotPrintFilter::PrintFrameWithScales ) {
painter->save();
painter->setPen(QPen(Qt::black));
painter->setBrush(QBrush(Qt::NoBrush));
QwtPainter::drawRect(painter, boundingRect);
painter->restore();
}
painter->setClipping(true);
QwtPainter::setClipRect(painter, canvasRect);
drawItems(painter, canvasRect, map, pfilter);
}
void QwtPolarPlot::renderLegend( QPainter *painter, const QRect &rect ) const
{
#if 1
// Shift this code into QwtLegend, so that Qwt/QwtPolar can share it
#endif
if ( !legend() || legend()->isEmpty() )
return;
QLayout *l = legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits( "QwtDynGridLayout" ) )
return;
QwtDynGridLayout *legendLayout = ( QwtDynGridLayout * )l;
uint numCols = legendLayout->columnsForWidth( rect.width() );
#if QT_VERSION < 0x040000
QValueList<QRect> itemRects =
legendLayout->layoutItems( rect, numCols );
#else
QList<QRect> itemRects =
legendLayout->layoutItems( rect, numCols );
#endif
int index = 0;
#if QT_VERSION < 0x040000
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator )
{
#else
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt( i );
#endif
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipping( true );
QwtPainter::setClipRect( painter, itemRects[index] );
renderLegendItem( painter, w, itemRects[index] );
index++;
painter->restore();
}
}
}
/*!
Render the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPolarPlot::renderLegendItem( QPainter *painter,
const QWidget *w, const QRect &rect ) const
{
#if 1
// Shift this code into QwtLegend, so that Qwt/QwtPolar can share it
#endif
if ( w->inherits( "QwtLegendItem" ) )
{
QwtLegendItem *item = ( QwtLegendItem * )w;
painter->setFont( item->font() );
item->drawItem( painter, rect );
}
}
void QwtPlot::printLegend(QPainter *painter, const QRect &rect) const
{
if ( !legend() || legend()->isEmpty() )
return;
QLayout *l = legend()->contentsWidget()->layout();
if ( l == 0 || !l->inherits("QwtDynGridLayout") )
return;
QwtDynGridLayout *legendLayout = (QwtDynGridLayout *)l;
uint numCols = legendLayout->columnsForWidth(rect.width());
#if QT_VERSION < 0x040000
QValueList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#else
QList<QRect> itemRects =
legendLayout->layoutItems(rect, numCols);
#endif
int index = 0;
#if QT_VERSION < 0x040000
QLayoutIterator layoutIterator = legendLayout->iterator();
for ( QLayoutItem *item = layoutIterator.current();
item != 0; item = ++layoutIterator)
{
#else
for ( int i = 0; i < legendLayout->count(); i++ )
{
QLayoutItem *item = legendLayout->itemAt(i);
#endif
QWidget *w = item->widget();
if ( w )
{
painter->save();
painter->setClipping(true);
QwtPainter::setClipRect(painter, itemRects[index]);
printLegendItem(painter, w, itemRects[index]);
index++;
painter->restore();
}
}
}
/*!
Print the legend item into a given rectangle.
\param painter Painter
\param w Widget representing a legend item
\param rect Bounding rectangle
*/
void QwtPlot::printLegendItem(QPainter *painter,
const QWidget *w, const QRect &rect) const
{
if ( w->inherits("QwtLegendItem") )
{
QwtLegendItem *item = (QwtLegendItem *)w;
painter->setFont(item->font());
item->drawItem(painter, rect);
}
}
/*!
\brief Paint a scale into a given rectangle.
Paint the scale into a given rectangle.
\param painter Painter
\param axisId Axis
\param startDist Start border distance
\param endDist End border distance
\param baseDist Base distance
\param rect Bounding rectangle
*/
void QwtPlot::printScale(QPainter *painter,
int axisId, int startDist, int endDist, int baseDist,
const QRect &rect) const
{
if (!axisEnabled(axisId))
return;
QwtScaleDraw::Alignment align;
int x, y, w;
switch(axisId)
{
case yLeft:
{
x = rect.right() - baseDist + 1;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::LeftScale;
break;
}
case yRight:
{
x = rect.left() + baseDist;
y = rect.y() + startDist;
w = rect.height() - startDist - endDist;
align = QwtScaleDraw::RightScale;
break;
}
case xTop:
{
x = rect.left() + startDist;
y = rect.bottom() - baseDist + 1;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::TopScale;
break;
}
case xBottom:
{
x = rect.left() + startDist;
y = rect.top() + baseDist;
w = rect.width() - startDist - endDist;
align = QwtScaleDraw::BottomScale;
break;
}
default:
return;
}
const QwtScaleWidget *scaleWidget = axisWidget(axisId);
scaleWidget->drawTitle(painter, align, rect);
painter->save();
painter->setFont(scaleWidget->font());
QwtScaleDraw *sd = (QwtScaleDraw *)scaleWidget->scaleDraw();
const QPoint sdPos = sd->pos();
const int sdLength = sd->length();
sd->move(x, y);
sd->setLength(w);
#if QT_VERSION < 0x040000
sd->draw(painter, scaleWidget->palette().active());
#else
QPalette palette = scaleWidget->palette();
palette.setCurrentColorGroup(QPalette::Active);
sd->draw(painter, palette);
#endif
// reset previous values
sd->move(sdPos);
sd->setLength(sdLength);
painter->restore();
}
/*!
Print the canvas into a given rectangle.
\param painter Painter
\param map Maps mapping between plot and paint device coordinates
\param canvasRect Bounding rectangle
\param pfilter Print filter
\sa QwtPlotPrintFilter
*/
void QwtPlot::printCanvas(QPainter *painter, const QRect &canvasRect,
const QwtArray<QwtScaleMap> &map, const QwtPlotPrintFilter &pfilter) const
{
if ( pfilter.options() & QwtPlotPrintFilter::PrintCanvasBackground )
{
painter->setPen(Qt::NoPen);
QBrush bgBrush;
#if QT_VERSION >= 0x040000
bgBrush = canvas()->palette().brush(backgroundRole());
#else
QColorGroup::ColorRole role =
QPalette::backgroundRoleFromMode( backgroundMode() );
bgBrush = canvas()->colorGroup().brush( role );
#endif
painter->setBrush(bgBrush);
int x1 = 0;
int x2 = 0;
int y1 = 0;
int y2 = 0;
#if QT_VERSION >= 0x040000
switch(painter->device()->paintEngine()->type())
{
case QPaintEngine::PostScript:
x2 = 1;
y2 = 1;
break;
default:;
}
#endif
const QwtMetricsMap map = QwtPainter::metricsMap();
x1 = map.screenToLayoutX(x1);
x2 = map.screenToLayoutX(x2);
y1 = map.screenToLayoutY(y1);
y2 = map.screenToLayoutY(y2);
QwtPainter::drawRect(painter,
canvasRect.x() + x1, canvasRect.y() + y1,
canvasRect.width() - x2, canvasRect.height() - y2);
}
else
{
// Paint the canvas borders instead.
painter->setPen(QPen(Qt::black));
painter->setBrush(QBrush(Qt::NoBrush));
QwtPainter::drawRect(painter, canvasRect);
}
painter->setClipping(true);
QwtPainter::setClipRect(painter, canvasRect);
drawItems(painter, canvasRect, map, pfilter);
}