void LegendWidget::print(QPainter *painter, const QwtScaleMap map[QwtPlot::axisCnt])
{
int x = map[QwtPlot::xBottom].transform(calculateXValue());
int y = map[QwtPlot::yLeft].transform(calculateYValue());
const int symbolLineLength = line_length + symbolsMaxWidth();
int width, height, textWidth, textHeight;
QwtArray<long> heights = itemsHeight(symbolLineLength, width, height, textWidth, textHeight);
drawFrame(painter, QRect(x, y, width, height));
drawText(painter, QRect(x, y, textWidth, textHeight), heights, symbolLineLength);
}
void LegendWidget::paintEvent(QPaintEvent *e)
{
const int symbolLineLength = line_length + symbolsMaxWidth();
int width, height, textWidth, textHeight;
QwtArray<long> heights = itemsHeight(symbolLineLength, width, height, textWidth, textHeight);
resize(width, height);
QPainter p(this);
drawFrame(&p, rect());
drawText(&p, QRect(0, 0, textWidth, textHeight), heights, symbolLineLength);
e->accept();
}
QRect LegendMarker::rect() const
{
const QwtScaleMap &xMap = d_plot->canvasMap(xAxis());
const QwtScaleMap &yMap = d_plot->canvasMap(yAxis());
const int x = xMap.transform(xValue());
const int y = yMap.transform(yValue());
int width, height;
itemsHeight(y, symbolsMaxLineLength(), width, height);
return QRect(QPoint(x, y), QSize(width - 1, height - 1));
}
void LegendWidget::print(QPainter *painter, const QwtScaleMap map[QwtPlot::axisCnt])
{
int x = map[QwtPlot::xBottom].transform(xValue());
int y = map[QwtPlot::yLeft].transform(yValue());
const int symbolLineLength = line_length + symbolsMaxWidth();
int width, height;
QwtArray<int> heights = itemsHeight(y, symbolLineLength, width, height);
QRect rect = QRect(x, y, width, height);
drawFrame(painter, rect);
drawText(painter, rect, heights, symbolLineLength);
}
void LegendMarker::draw(QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &) const
{
const int x = xMap.transform(xValue());
const int y = yMap.transform(yValue());
const int symbolLineLength = symbolsMaxLineLength();
int width, height;
QwtArray<long> heights = itemsHeight(y, symbolLineLength, width, height);
QRect rs = QRect(QPoint(x, y), QSize(width, height));
drawFrame(p, d_frame, rs);
drawSymbols(p, rs, heights, symbolLineLength);
drawLegends(p, rs, heights, symbolLineLength);
}
void LegendWidget::paintEvent(QPaintEvent *e)
{
if (d_fixed_coordinates){
setOriginCoord(d_x, d_y);
d_fixed_coordinates = false;
}
const int symbolLineLength = line_length + symbolsMaxWidth();
int width, height;
QwtArray<int> heights = itemsHeight(0, symbolLineLength, width, height);
if (d_frame == Shadow)
resize(width + 5, height + 5);
else
resize(width, height);
QRect rect = QRect(0, 0, width - 1, height - 1);
QPainter p(this);
drawFrame(&p, rect);
drawText(&p, rect, heights, symbolLineLength);
e->accept();
}
void KListWidgetPrivate::resetAreas()
{
Q_Q(KListWidget);
QSizeF winSize = q->size();
if(winSize.height() < itemsHeight())
{
//需要滚动条
if(m_scrollbar == NULL)
{
m_scrollbar = new KScrollBar(q);
QObject::connect(m_scrollbar, SIGNAL(valueChanged(qreal)), q, SLOT(on_scroll_valueChanged(qreal)));
}
qreal thickness = m_scrollbar->frameThickness();
m_vscrollArea = QRectF(winSize.width() - thickness, 0, thickness, winSize.height());
m_contentArea = QRectF(0, 0, winSize.width() - m_thinknessScrollbar, winSize.height());
m_scrollbar->setGeometry(m_vscrollArea);
m_scrollbar->setFixSize(m_vscrollArea.size());
qreal maxval = maxScrollValue();
m_scrollbar->setRange(0, maxval);
m_valueCurrentScroll = qBound<int>(0, m_valueCurrentScroll, maxval);
m_scrollbar->setSingleStep(m_heightUnselect);
m_scrollbar->setPageStep(m_contentArea.height() - m_heightUnselect);
m_scrollbar->show();
}
else
{
//不需要滚动条
m_valueCurrentScroll = 0;
m_contentArea = QRectF(0, 0, winSize.width(), winSize.height());
if(m_scrollbar)
{
m_scrollbar->hide();
}
}
/*重新调整所有项的尺寸*/
doLayout();
}
qreal KListWidgetPrivate::maxScrollValue()
{
Q_Q(KListWidget);
return itemsHeight() - m_contentArea.height() + m_heightContentBottomHidden;
}
