StyleUtils.cpp

Go to the documentation of this file.

//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/Tool/StyleUtils.cpp
//! @brief     Defines GUI::StyleUtils namespace
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "GUI/View/Tool/StyleUtils.h"
#include "Base/Util/Assert.h"
#include "GUI/View/Tool/DesignerHelper.h"
#include <QApplication>
#include <QBoxLayout>
#include <QDialog>
#include <QTreeView>
 
namespace {
 
//! Calculates size of letter `M` for current system font settings.
 
QSize FindSizeOfLetterM(const QWidget* widget)
{
    QFontMetrics fontMetric(widget->font());
#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
    auto em = fontMetric.horizontalAdvance('M');
#else
    auto em = fontMetric.width('M');
#endif
    auto fontAscent = fontMetric.ascent();
 
    return QSize(em, fontAscent);
}
 
QSize DefaultSizeOfLetterM()
{
    QWidget widget;
    return FindSizeOfLetterM(&widget);
}
 
} // namespace
 
 
void GUI::Util::Style::setPropertyStyle(QTreeView* tree)
{
    ASSERT(tree);
    tree->setStyleSheet(GUI::Util::Style::propertyTreeStyle());
    tree->setAlternatingRowColors(true);
}
 
QString GUI::Util::Style::propertyTreeStyle()
{
    QString result;
 
    // lines arount cell content
    result += "QTreeView::item {"
              "    border-bottom: 1px solid #c7c8c9; "
              "    border-right: 1px solid #c7c8c9;}"
              "QTreeView::branch {border-bottom: 1px solid #c7c8c9;}";
 
    // styling of branch to restore open/closed signs eliminated by previous styling
    result += "QTreeView::branch:has-children:!has-siblings:closed,"
              "QTreeView::branch:closed:has-children:has-siblings {"
              "padding:2px 2px 2px 2px;border-image: none;"
              "image: url(:/images/caret-right.svg);}"
              "QTreeView::branch:open:has-children:!has-siblings,"
              "QTreeView::branch:open:has-children:has-siblings  {"
              "padding:2px 2px 2px 2px;border-image: none; image: url(:/images/caret-down.svg);"
              "}";
 
    // background of selected rows restored
    result += "QTreeView::item:selected{background:#3daee9;}";
 
    return result;
}
 
QFont GUI::Util::Style::sectionFont(bool bold)
{
    QFont result;
    result.setPointSize(DesignerHelper::getSectionFontSize());
    result.setBold(bold);
 
    return result;
}
 
QFont GUI::Util::Style::labelFont(bool bold)
{
    QFont result;
    result.setPointSize(DesignerHelper::getLabelFontSize());
    result.setBold(bold);
 
    return result;
}
 
void GUI::Util::Style::setResizable(QDialog*
#ifdef Q_OS_MAC
                                        dialog
#endif
)
{
#ifdef Q_OS_MAC
    dialog->setWindowFlags(Qt::WindowCloseButtonHint | Qt::CustomizeWindowHint
                           | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint
                           | Qt::Window);
#endif
}
 
QSize GUI::Util::Style::SizeOfLetterM(const QWidget* widget)
{
    static QSize default_size = DefaultSizeOfLetterM();
    return widget ? FindSizeOfLetterM(widget) : default_size;
}
 
int GUI::Util::Style::SystemPointSize()
{
    return QApplication::font().pointSize();
}
 
int GUI::Util::Style::PropertyPanelWidth()
{
    return SizeOfLetterM().width() * 16;
}