C++ QColorGroup::background方法代码示例

/*!\reimp
 */
void QPlatinumStyle::drawComplexControl( ComplexControl control,
					 QPainter *p,
					 const QWidget *widget,
					 const QRect &r,
					 const QColorGroup &cg,
					 SFlags how,
					 SCFlags sub,
					 SCFlags subActive,
					 const QStyleOption& opt ) const
{
    switch ( control ) {
    case CC_ComboBox:
	{
	    int x,
		y,
		w,
		h;
	    r.rect( &x, &y, &w, &h );
	    p->fillRect( x + 2,  y + 2, w - 4,
			 h - 4, cg.brush(QColorGroup::Button) );
	    // the bright side
	    p->setPen(cg.shadow());
	    p->drawLine( x, y, x + w - 1, y );
	    p->drawLine( x, y, x, y + h - 1 );

	    p->setPen( cg.light() );
	    p->drawLine( x + 1, y + 1,
			 x + w - 2, y + 1 );
	    p->drawLine( x + 1, y + 1,
			 x + 1, y + h - 2 );

	    // the dark side!


	    p->setPen( cg.mid() );
	    p->drawLine( x + 2, y + h - 2,
			 x + w - 2, y + h - 2 );
	    p->drawLine( x + w - 2, y + 2,
			 x + w - 2, y + h - 2 );

	    p->setPen (cg.shadow() );
	    p->drawLine( x + 1, y + h - 1,
			 x + w - 1, y + h - 1 );
	    p->drawLine( x + w - 1, y,
			 x + w - 1, y + h - 1 );

	    // top left corner:
	    p->setPen( cg.background() );
	    p->drawPoint( x, y );
	    p->drawPoint( x + 1, y );
	    p->drawPoint( x, y + 1 );
	    p->setPen( cg.shadow() );
	    p->drawPoint( x + 1, y + 1 );
	    p->setPen( white );
	    p->drawPoint( x + 3, y + 3 );
	    // bottom left corner:
	    p->setPen( cg.background() );
	    p->drawPoint( x, y + h - 1 );
	    p->drawPoint( x + 1, y + h - 1 );
	    p->drawPoint( x, y + h - 2 );
	    p->setPen( cg.shadow() );
	    p->drawPoint( x + 1, y + h - 2 );
	    // top right corner:
	    p->setPen( cg.background() );
	    p->drawPoint( x + w - 1, y );
	    p->drawPoint( x + w - 2, y );
	    p->drawPoint( x + w - 1, y + 1 );
	    p->setPen( cg.shadow() );
	    p->drawPoint( x + w - 2, y + 1 );
	    // bottom right corner:
	    p->setPen( cg.background() );
	    p->drawPoint( x + w - 1, y + h - 1 );
	    p->drawPoint( x + w - 2, y + h - 1 );
	    p->drawPoint( x + w - 1, y + h - 2 );
	    p->setPen( cg.shadow() );
	    p->drawPoint( x + w - 2, y + h - 2 );
	    p->setPen( cg.dark() );
	    p->drawPoint( x + w - 3, y + h - 3 );

	    if ( sub & SC_ComboBoxArrow ) {
		QRect rTmp = querySubControlMetrics( CC_ComboBox, widget,
						     SC_ComboBoxArrow, opt );
		int xx = rTmp.x(),
		    yy = rTmp.y(),
		    ww = rTmp.width(),
		    hh = rTmp.height();
		// the bright side

		p->setPen( cg.mid() );
		p->drawLine( xx, yy+2, xx, yy+hh-3 );

		p->setPen( cg.button() );
		p->drawLine( xx+1, yy+1, xx+ww-2, yy+1 );
		p->drawLine( xx+1, yy+1, xx+1, yy+hh-2 );

		p->setPen( cg.light() );
		p->drawLine( xx+2, yy+2, xx+2, yy+hh-2 );
		p->drawLine( xx+2, yy+2, xx+ww-2, yy+2 );
//.........这里部分代码省略.........

void DataViewTable::paintCell(QPainter* painter, int row, int col,
                              const QRect& cr, bool selected, const QColorGroup& cg) {
  if (selector_ == NULL || row < 0 || col < 0)
    return;

  QRect rect(0, 0, cr.width(), cr.height());
  if (selected) {
    painter->fillRect(rect, cg.highlight());
    painter->setPen(cg.highlightedText());
  } else {
    if (row % 2) {
      painter->fillRect(rect, cg.base());
    } else {
      painter->fillRect(rect, cg.background().light(135));
    }
    painter->setPen(cg.text());
  }

  const SelectList &flist = selector_->pickList();

  // Check for row out of bounds.
  int max_row_id = flist.size() - 1;
  if (row > max_row_id)
    return;

  // determine if table has optional col for the feature id
  bool show_id = Preferences::getConfig().dataViewShowFID;

  if (show_id && col == 0) {
    painter->drawText(rect, Qt::AlignRight, QString::number(flist[row]));
    return;
  }

  if (!selector_->HasAttrib()) {
    // we don't have anny attribs, bail now
    return;
  }

  // we don't have to worry about fails attribute fetches since we are anly
  // asking for records that are already in our select list and they cannot
  // get into the select list w/o a valid record.
  gstRecordHandle rec;
  try {
    rec = theSourceManager->GetAttributeOrThrow(
        UniqueFeatureId(selector_->getSourceID(), selector_->layer(),
                        flist[row]));
  } catch (...) {
    // silently ignore. see comment before 'try'
    return;
  }

  int num_fields = static_cast<int>(rec->NumFields());
  // Check for column out of bounds.
  int max_column_id = show_id ? num_fields : num_fields - 1;
  if (col > max_column_id)
    return;

  gstValue* val = rec->Field(show_id ? col - 1 : col);
  int tf = val->IsNumber() ? Qt::AlignRight : Qt::AlignLeft;
  int rowHeight = this->rowHeight(row);
  int colWidth  = this->columnWidth(col);
  QRect bounding_rect = fontMetrics().boundingRect(val->ValueAsUnicode());

  // fontMetrics should account for the font descenders, but it
  // seems to be broken.
  // I accounted for the descenders by adding a margin of 4 around the cell
  // contents to account for errors in the fontMetrics
  // height estimation for font descenders, e.g., the tail of
  // the "y" or "p") . This seems to work for even large fonts and
  // is readable for smaller fonts.
  int added_cell_margin = 4;
  int cellWidth = bounding_rect.width() + added_cell_margin * 2;
  int cellHeight = bounding_rect.height() + added_cell_margin * 2;
  if (cellHeight > rowHeight) {
    setRowHeight(row, cellHeight);
  }
  if (cellWidth > colWidth) {
    setColumnWidth(col, cellWidth);
  }

  // When drawing, we're going to force the horizontal margin here.
  QRect text_rect(added_cell_margin, 0, cr.width() - added_cell_margin, cr.height());

  painter->drawText(text_rect, tf, val->ValueAsUnicode());
}

//.........这里部分代码省略.........
	    if ( !(flags & (Style_Down | Style_On)) ) {
		p->fillRect( x+3, y+3, w-6, h-6,
			     cg.brush( QColorGroup::Button ));
		// the bright side
		p->setPen( cg.shadow() );
		p->drawLine( x, y, x+w-1, y );
		p->drawLine( x, y, x, y + h - 1 );

		p->setPen( cg.button() );
		p->drawLine( x + 1, y + 1, x + w - 2, y + 1 );
		p->drawLine( x + 1, y + 1, x + 1, y + h - 2 );

		p->setPen( cg.light() );
		p->drawLine( x + 2, y + 2, x + 2, y + h - 2 );
		p->drawLine( x + 2, y + 2, x + w - 2, y + 2 );


		// the dark side!

		p->setPen( cg.mid() );
		p->drawLine( x + 3, y + h - 3 ,x + w - 3, y + h - 3 );
		p->drawLine( x + w - 3, y + 3, x + w - 3, y + h - 3 );

		p->setPen( cg.dark() );
		p->drawLine( x + 2, y + h - 2, x + w - 2, y + h - 2 );
		p->drawLine( x + w - 2, y + 2, x + w - 2, y + h - 2 );

		p->setPen( cg.shadow() );
		p->drawLine( x + 1, y + h - 1, x + w - 1, y + h - 1 );
		p->drawLine( x + w - 1, y, x + w - 1, y + h - 1 );


		// top left corner:
		p->setPen( cg.background() );
		p->drawPoint( x, y );
		p->drawPoint( x + 1, y );
		p->drawPoint( x, y+1 );
		p->setPen( cg.shadow() );
		p->drawPoint( x + 1, y + 1 );
		p->setPen( cg.button() );
		p->drawPoint( x + 2, y + 2 );
		p->setPen( white );
		p->drawPoint( x + 3, y + 3 );
		// bottom left corner:
		p->setPen( cg.background() );
		p->drawPoint( x, y + h - 1 );
		p->drawPoint( x + 1, y + h - 1 );
		p->drawPoint( x, y + h - 2 );
		p->setPen( cg.shadow() );
		p->drawPoint( x + 1, y + h - 2 );
		p->setPen( cg.dark() );
		p->drawPoint( x + 2, y + h - 3 );
		// top right corner:
		p->setPen( cg.background() );
		p->drawPoint( x + w -1, y );
		p->drawPoint( x + w - 2, y );
		p->drawPoint( x + w - 1, y + 1 );
		p->setPen( cg.shadow() );
		p->drawPoint( x + w - 2, y + 1 );
		p->setPen( cg.dark() );
		p->drawPoint( x + w - 3, y + 2 );
		// bottom right corner:
		p->setPen( cg.background() );
		p->drawPoint( x + w - 1, y + h - 1 );
		p->drawPoint( x + w - 2, y + h - 1 );
		p->drawPoint( x + w - 1, y + h - 2 );

//.........这里部分代码省略.........
      if (erase) 
	p.setPen(g.light());
      break;
    case 2 :
      pt.rx() += (QCOORD)(Segment_Length);
      
      
      if (erase) 
	p.setPen(offcolor);
      
      pts.setPoints(3,pt.x() , pt.y() ,
		    pt.x() , pt.y() - Width + 1,    // changes from 1 to 2 
		    pt.x() - Width +1, pt.y() );
      
      p.drawPolygon(pts);
      
      pts.setPoints(3,pt.x() , pt.y() + Segment_Length - Width - Width/2 -1,
		    pt.x() , pt.y() + Segment_Length - 3*Width/4 - 1,
		    pt.x() - Width +1, pt.y() + Segment_Length - Width - Width/2 -1);

      p.drawPolygon(pts);
      
      if (erase)
	p.setPen(g.light());
      
      p.fillRect(pt.x() - Width+1 ,pt.y() + Width/2- 1, Width , 
		 Segment_Length - Width - Width + 1 ,brush);
      
      break;
    case 3 :
      
      pt.ry() += (QCOORD)Segment_Length;
      
      p.setPen(g.background());
      
      pts.setPoints(3,pt.x()-1 , pt.y() - Width/2 -1,
		    pt.x() + Width+2, pt.y()-Width -1 ,//
		    pt.x() + Width+2, pt.y() );
      p.drawPolygon(pts);
      pts.setPoints(3,pt.x() + Segment_Length + 1, pt.y()  - Width/2 -1  ,
		    pt.x() + Segment_Length - Width - 2 , 
		    pt.y() - Width -1,
		    pt.x() + Segment_Length - Width - 2, pt.y() );
      p.drawPolygon(pts);
      
      p.setPen(g.light());
      p.fillRect(pt.x() + Width -1 ,pt.y() - Width, Segment_Length- 2* Width + 3, 
		       Width  ,brush);	    
      
      break;
    case 4 :
      pt.ry() += (QCOORD)(Segment_Length +1);
      p.fillRect(pt.x(), pt.y(), Width , Segment_Length - Width - Width/2 ,brush);
      if (erase) 
	p.setPen(offcolor);
      
      pts.setPoints(3,pt.x(), pt.y(),
		    pt.x(), pt.y()-Width+1,
		    pt.x() + Width-1, pt.y());
      p.drawPolygon(pts);
      pts.setPoints(3,pt.x(), pt.y() + Segment_Length -Width - Width/2  -1 ,
		    pt.x() + Width -1 , pt.y()  -Width +Segment_Length - Width/2 -1 ,
		    pt.x() , pt.y() + Segment_Length - 3*Width/4 -1);
      p.drawPolygon(pts);
      
      if (erase)