当前位置: 首页>>代码示例>>C++>>正文

C++ QScrollBar::isVisible方法代码示例

本文整理汇总了C++中QScrollBar::isVisible方法的典型用法代码示例。如果您正苦于以下问题：C++ QScrollBar::isVisible方法的具体用法？C++ QScrollBar::isVisible怎么用？C++ QScrollBar::isVisible使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QScrollBar的用法示例。


在下文中一共展示了QScrollBar::isVisible方法的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: isBlockVisible

bool VMdEditor::isBlockVisible(const QTextBlock &p_block)
{
    if (!p_block.isValid() || !p_block.isVisible()) {
        return false;
    }

    QScrollBar *vbar = verticalScrollBar();
    if (!vbar || !vbar->isVisible()) {
        // No vertical scrollbar.
        return true;
    }

    int height = rect().height();
    QScrollBar *hbar = horizontalScrollBar();
    if (hbar && hbar->isVisible()) {
        height -= hbar->height();
    }

    QAbstractTextDocumentLayout *layout = document()->documentLayout();
    QRectF rect = layout->blockBoundingRect(p_block);
    int y = GETVISUALOFFSETY;
    int rectHeight = (int)rect.height();

    return (y >= 0 && y < height) || (y < 0 && y + rectHeight > 0);
}
开发者ID:vscanf，项目名称:vnote，代码行数:25，代码来源:vmdeditor.cpp

示例2: accessibleChildren

QWidgetList QAccessibleAbstractScrollArea::accessibleChildren() const
{
    QWidgetList children;

    // Viewport.
    QWidget * viewport = abstractScrollArea()->viewport();
    if (viewport)
        children.append(viewport);

    // Horizontal scrollBar container.
    QScrollBar *horizontalScrollBar = abstractScrollArea()->horizontalScrollBar();
    if (horizontalScrollBar && horizontalScrollBar->isVisible()) {
        children.append(horizontalScrollBar->parentWidget());
    }

    // Vertical scrollBar container.
    QScrollBar *verticalScrollBar = abstractScrollArea()->verticalScrollBar();
    if (verticalScrollBar && verticalScrollBar->isVisible()) {
        children.append(verticalScrollBar->parentWidget());
    }

    // CornerWidget.
    QWidget *cornerWidget = abstractScrollArea()->cornerWidget();
    if (cornerWidget && cornerWidget->isVisible())
        children.append(cornerWidget);

    return children;
}
开发者ID:crobertd，项目名称:qtbase，代码行数:28，代码来源:complexwidgets.cpp

示例3: tabFont

void
TabsView::showTab( TabsItem *tab )
{
    if( tab )
    {
        QString tabText = tab->getTabData();
        if( tabText.length() > 0 )
        {
            tabText.replace( "\n", "<br></br>", Qt::CaseInsensitive );

            QFont tabFont( "monospace");
            tabFont.setStyleHint( QFont::Courier );
            tabFont.setStyleStrategy( QFont::PreferAntialias );
            tabFont.setWeight( QFont::Normal );
            tabFont.setPointSize( QFont().pointSize() );

            QFont headingFont( "sans-serif" );
            headingFont.setPointSize( tabFont.pointSize() + 2 );
            headingFont.setStyleHint( QFont::SansSerif );
            headingFont.setStyleStrategy( QFont::PreferAntialias );
            headingFont.setWeight( QFont::Black );
            QString linkColor = The::paletteHandler()->palette().link().color().name();
            QString textColor = The::paletteHandler()->palette().text().color().name();
            int headingWeight = 600;

            QString htmlData = "<html>";
                    htmlData += "<body style=\"font-family:'" + tabFont.family() + "';";
                    htmlData += "font-size:" + QString::number( tabFont.pointSize() ) + "pt;";
                    htmlData += "font-weight:" + QString::number( tabFont.weight() ) + ";";
                    htmlData += "color:" + textColor + ";\">";

                    // tab heading + tab source
                    htmlData += "<p><span style=\"font-family:'" + headingFont.family() + "';";
                    htmlData += "font-size:" + QString::number( headingFont.pointSize() ) + "pt;";
                    htmlData += "font-weight:" + QString::number( headingWeight ) + ";\">";
                    htmlData += tab->getTabTitle();
                    htmlData += " (" + i18n( "tab provided from: " ) + "<a href=\"" + tab->getTabUrl() + "\">";
                    htmlData += "<span style=\"text-decoration: underline; color:" + linkColor + ";\">";
                    htmlData += tab->getTabSource() + "</a>";
                    htmlData += ")</span></p>";

                    // tab data
                    htmlData += tabText + "</body></html>";

            // backup current scrollbar position
            QScrollBar *vbar = m_tabTextBrowser->nativeWidget()->verticalScrollBar();
            int scrollPosition = vbar->isVisible() ? vbar->value() : vbar->minimum();

            m_tabTextBrowser->nativeWidget()->setHtml( htmlData );

            // re-apply scrollbar position
            vbar->setSliderPosition( scrollPosition );
        }
    }
}
开发者ID:ErrAza，项目名称:amarok，代码行数:55，代码来源:TabsView.cpp

示例4: 

gboolean
packet_list_check_end(void)
{
    if (gbl_cur_packet_list) {
        QScrollBar *sb = gbl_cur_packet_list->verticalScrollBar();
        if (sb && sb->isVisible() && sb->value() == sb->maximum()) {
            return TRUE;
        }
    }
    return FALSE;
}
开发者ID:CTSRD-CHERI，项目名称:wireshark，代码行数:11，代码来源:packet_list.cpp

示例5: infoFramePos

QPoint CodeCompleterListView::infoFramePos() const
{
    const QRect &r = rectForIndex(currentIndex());
    int xoffset = this->frameWidth()+3;
    int yoffset = this->frameWidth()-verticalOffset();
    QScrollBar *vsb = this->verticalScrollBar();
    if (vsb && vsb->isVisible())
        xoffset += this->horizontalScrollBar()->sizeHint().height();
    QPoint pt = this->mapToGlobal(r.topRight());
    pt.rx() += xoffset;
    pt.ry() += yoffset;
    return pt;
}
开发者ID:CornerZhang，项目名称:liteide，代码行数:13，代码来源:codecompleter.cpp

示例6: QCOMPARE

void tst_QAbstractScrollArea::setScrollBars2()
{
    QAbstractScrollArea scrollArea;
    scrollArea.resize(300, 300);

    QScrollBar *hbar = new QScrollBar;
    scrollArea.setHorizontalScrollBar(hbar);
    qApp->processEvents();
    QCOMPARE(scrollArea.horizontalScrollBar(), hbar);

    QScrollBar *vbar = new QScrollBar;
    scrollArea.setVerticalScrollBar(vbar);
    qApp->processEvents();
    QCOMPARE(scrollArea.verticalScrollBar(), vbar);

    scrollArea.horizontalScrollBar()->setRange(0, 100);
    scrollArea.verticalScrollBar()->setRange(0, 100);
    scrollArea.show();

    // Make sure scroll bars are not explicitly hidden by QAbstractScrollArea itself.
    QVERIFY(hbar->isVisible());
    QVERIFY(vbar->isVisible());

    // Hide the OLD scroll bar and ensure that the NEW one is hidden.
    hbar->hide();
    scrollArea.setHorizontalScrollBar(new QScrollBar);
    qApp->processEvents();
    QVERIFY(!scrollArea.horizontalScrollBar()->isVisible());

    vbar->hide();
    scrollArea.setVerticalScrollBar(new QScrollBar);
    qApp->processEvents();
    QVERIFY(!scrollArea.verticalScrollBar()->isVisible());

    scrollArea.verticalScrollBar()->show();
    scrollArea.horizontalScrollBar()->show();

    // Hide the NEW scroll bar and ensure that it's visible
    // (because the OLD one is visible).
    hbar = new QScrollBar;
    hbar->hide();
    scrollArea.setHorizontalScrollBar(hbar);
    qApp->processEvents();
    QVERIFY(hbar->isVisible());

    vbar = new QScrollBar;
    vbar->hide();
    scrollArea.setVerticalScrollBar(vbar);
    qApp->processEvents();
    QVERIFY(vbar->isVisible());

    vbar->setRange(0, 0);
    qApp->processEvents();
    QVERIFY(!vbar->isVisible());

    hbar->setRange(0, 0);
    qApp->processEvents();
    QVERIFY(!hbar->isVisible());
}
开发者ID:mpvader，项目名称:qt，代码行数:59，代码来源:tst_qabstractscrollarea.cpp

示例7: qMin

void
line_edit_autocomplete::show_popup()
{
  QWidget* widget=this;
  QRect rect;

  const QRect screen = QApplication::desktop()->availableGeometry(widget);
  Qt::LayoutDirection dir = widget->layoutDirection();
  QPoint pos;
  int rw, rh, w;
  int h = (popup->sizeHintForRow(0) * qMin(7, popup->model()->rowCount()) + 3) + 3;
  QScrollBar *hsb = popup->horizontalScrollBar();
  if (hsb && hsb->isVisible())
    h += popup->horizontalScrollBar()->sizeHint().height();

  if (rect.isValid()) {
    rh = rect.height();
    w = rw = rect.width();
    pos = widget->mapToGlobal(dir == Qt::RightToLeft ? rect.bottomRight() : rect.bottomLeft());
  }
  else {
    rh = widget->height();
    rw = widget->width();
    pos = widget->mapToGlobal(QPoint(0, widget->height() - 2));
    w = widget->width();
  }

  if ((pos.x() + rw) > (screen.x() + screen.width()))
    pos.setX(screen.x() + screen.width() - w);
  if (pos.x() < screen.x())
    pos.setX(screen.x());
  if (((pos.y() + rh) > (screen.y() + screen.height())) && ((pos.y() - h - rh) >= 0))
    pos.setY(pos.y() - qMax(h, popup->minimumHeight()) - rh + 2);

  popup->setGeometry(pos.x(), pos.y(), w, h);

  if (!popup->isVisible()) {
    popup->show();
  }
}
开发者ID:manitou-mail，项目名称:manitou-mail-ui，代码行数:40，代码来源:line_edit_autocomplete.cpp

示例8: zoomOnWheel

void ReportViewWidget::ScrollArea::wheelEvent(QWheelEvent * ev)
{
	if(ev->orientation() == Qt::Vertical) {
		if(ev->modifiers() == Qt::ControlModifier) {
			int delta = ev->delta();
			emit zoomOnWheel(delta, ev->pos());
			ev->accept();
			return;
		}
		else {
			QScrollBar *sb = verticalScrollBar();
			if(sb) {
				if(sb->value() == sb->minimum() && ev->delta() > 0) {
					emit showPreviousPage();
					ev->accept();
					return;
				}
				if(sb->value() == sb->maximum() && ev->delta() < 0) {
					emit showNextPage();
					ev->accept();
					return;
				}
			}
			if(!sb || !sb->isVisible()) {
				/// pokud neni scroll bar, nemuzu se spolehnout na funkci verticalScrollBarValueChanged(), protoze value je pro oba smery == 0
				//qfInfo() << e->delta();
				if(ev->delta() < 0) {
					emit showNextPage();
				}
				else {
					emit showPreviousPage();
				}
				ev->accept();
				return;
			}
		}
	}
	QScrollArea::wheelEvent(ev);
}
开发者ID:arnost00，项目名称:quickbox，代码行数:39，代码来源:reportviewwidget.cpp

示例9: adjustColumn

void ListView::adjustColumn()
{
#ifdef WIN32
    if (inResize()){
        if (!m_resizeTimer->isActive())
            m_resizeTimer->start(500);
        return;
    }
#endif
    m_resizeTimer->stop();
    if (m_expandingColumn >= 0){
        int w = width();
        QScrollBar *vBar = verticalScrollBar();
        if (vBar->isVisible())
            w -= vBar->width();
        for (int i = 0; i < columnCount(); i++){
            if (i == m_expandingColumn)
                continue;
            w -= columnWidth(i);
        }
        int minW = 40;
        for (int i = 0; i < topLevelItemCount(); i++){
            ListViewItem *item = static_cast<ListViewItem*>(topLevelItem(i));
            QFontMetrics fm(font());
            int ww = fm.width(item->text(m_expandingColumn));
            const QPixmap pict = item->pixmap(m_expandingColumn);
            if (!pict.isNull())
                ww += pict.width() + 2;
            if (ww > minW)
                minW = ww + 8;
        }
        if (w < minW)
            w = minW;
        setColumnWidth(m_expandingColumn, w - 4);
        viewport()->repaint();
    }
}
开发者ID:BackupTheBerlios，项目名称:sim-im-svn，代码行数:37，代码来源:listview.cpp

示例10: adjustColumn

void ListView::adjustColumn()
{
#ifdef WIN32
    if (inResize()){
        if (!m_resizeTimer->isActive())
            m_resizeTimer->start(500);
        return;
    }
#endif
    m_resizeTimer->stop();
    if (m_expandingColumn >= 0){
        int w = width();
        QScrollBar *vBar = verticalScrollBar();
        if (vBar->isVisible())
            w -= vBar->width();
        for (int i = 0; i < columnCount(); i++){
            if (i == m_expandingColumn)
                continue;
            w -= columnWidth(i);
        }
        resizeColumnToContents(m_expandingColumn);
        viewport()->repaint();
    }
}
开发者ID:BackupTheBerlios，项目名称:sim-im-svn，代码行数:24，代码来源:listview.cpp


注：本文中的QScrollBar::isVisible方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。