qt-creator/src/libs/utils/detailswidget.cpp

#include "detailswidget.h"
#include "detailsbutton.h"

#include <QtGui/QGridLayout>
#include <QtCore/QStack>

using namespace Utils;

DetailsWidget::DetailsWidget(QWidget *parent)
    : QWidget(parent),
      m_widget(0),
      m_toolWidget(0)
{
    m_grid = new QGridLayout(this);
    m_grid->setMargin(0);
    m_summaryLabel = new QLabel(this);
    m_summaryLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    m_detailsButton = new DetailsButton(this);

    m_grid->addWidget(m_summaryLabel, 0, 0, 2, 0);
    m_grid->addWidget(m_detailsButton, 0, 2);

    connect(m_detailsButton, SIGNAL(clicked()),
            this, SLOT(detailsButtonClicked()));
}

DetailsWidget::~DetailsWidget()
{

}

void DetailsWidget::detailsButtonClicked()
{
    if (m_widget)
        m_widget->setVisible(m_detailsButton->isToggled());
    fixUpLayout();
}

void DetailsWidget::setSummaryText(const QString &text)
{
    m_summaryLabel->setText(text);
}

void DetailsWidget::setWidget(QWidget *widget)
{
    if (m_widget == widget)
        return;
    if (m_widget)
        m_grid->removeWidget(m_widget);
    m_grid->addWidget(widget, 2, 0, 1, 3);
    m_widget = widget;
    m_widget->setVisible(m_detailsButton->isToggled());
}

void DetailsWidget::setToolWidget(QWidget *widget)
{
    if (m_toolWidget == widget)
        return;
    if (m_toolWidget)
        m_grid->removeWidget(m_toolWidget);
    m_grid->addWidget(widget, 0, 1);
    m_toolWidget = widget;
}

void DetailsWidget::fixUpLayout()
{
    QWidget *parent = m_widget;
    QStack<QWidget *> widgets;
    while((parent = parent->parentWidget()) && parent && parent->layout()) {
        widgets.push(parent);
        parent->layout()->update();
    }

    while(!widgets.isEmpty()) {
        widgets.pop()->layout()->activate();
    }
}