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/************************************************************************
*
* Copyright (C) 2009-2025 IRCAD France
* Copyright (C) 2012-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "ui/qt/layout/line.hpp"
#include "ui/qt/app.hpp"
#include <core/base.hpp>
#include <data/tools/color.hpp>
#include <ui/__/macros.hpp>
#include <QBoxLayout>
#include <QGroupBox>
#include <QScrollArea>
#include <QStyle>
// cspell: ignore QWIDGETSIZE_MAX
SIGHT_REGISTER_GUI(sight::ui::qt::layout::line, sight::ui::layout::line::REGISTRY_KEY)
namespace sight::ui::qt::layout
{
//-----------------------------------------------------------------------------
void line::create_layout(ui::container::widget::sptr _parent, const std::string& _id)
{
m_parent_container = std::dynamic_pointer_cast<ui::qt::container::widget>(_parent);
SIGHT_ASSERT("dynamicCast widget to widget failed", m_parent_container);
const QString q_id = QString::fromStdString(_id);
m_parent_container->get_qt_container()->setObjectName(q_id);
auto* layout = new QBoxLayout(QBoxLayout::LeftToRight);
m_parent_container->set_layout(layout);
layout->setContentsMargins(0, 0, 0, 0);
if(auto orientation = this->get_orientation(); orientation == vertical)
{
layout->setDirection(QBoxLayout::TopToBottom);
}
if(const auto spacing = this->get_spacing(); spacing != -1)
{
layout->setSpacing(spacing);
}
for(std::size_t idx = 0 ; const view_info& view_info : this->get_views_info())
{
if(view_info.m_is_spacer)
{
layout->addStretch();
}
else
{
// Set the spacing
/// @note this is cumbersome as child views will override the layout spacing, and the last view will win.
/// @todo remove this as this is not a good practice.
if(view_info.m_spacing != -1)
{
FW_DEPRECATED_MSG("Setting spacing on views is deprecated.", "26.0");
layout->setSpacing(view_info.m_spacing);
}
// top_panel is the final layer, exposed to children. Create it first.
/// @note its layout may be created by children. Settings margins, spacing on it will have no effects.
auto* const top_panel = new QWidget();
// mid_panel widget is the layer just below the panel. It could be a groupbox or a simple widget.
// It is the one that will manage margins.
QWidget* mid_panel = nullptr;
// Compute margins
int left_margin = view_info.m_left_border;
int top_margin = view_info.m_top_border;
int right_margin = view_info.m_right_border;
int bottom_margin = view_info.m_bottom_border;
if(view_info.m_border != 0)
{
left_margin = view_info.m_border;
top_margin = view_info.m_border;
right_margin = view_info.m_border;
bottom_margin = view_info.m_border;
}
// If there is a "caption", create a groupbox
if(view_info.m_caption.first)
{
const QString& title = QString::fromStdString(view_info.m_caption.second);
auto* const groupbox = new QGroupBox();
groupbox->setObjectName(q_id + '/' + title);
groupbox->setTitle(title);
mid_panel = groupbox;
// Groupbox margins should not go under defaults, or title may be cropped
const auto* const style = groupbox->style();
left_margin = std::max(left_margin, style->pixelMetric(QStyle::PM_LayoutLeftMargin));
top_margin = std::max(top_margin, style->pixelMetric(QStyle::PM_LayoutTopMargin));
right_margin = std::max(right_margin, style->pixelMetric(QStyle::PM_LayoutRightMargin));
bottom_margin = std::max(bottom_margin, style->pixelMetric(QStyle::PM_LayoutBottomMargin));
}
else
{
mid_panel = new QWidget();
mid_panel->setObjectName(q_id + '/' + QString::number(idx));
}
// Add the top_panel to the mid_panel layout
auto* const mid_layout = new QBoxLayout(QBoxLayout::LeftToRight);
mid_layout->addWidget(top_panel);
mid_panel->setLayout(mid_layout);
// Set mid_panel margins
mid_layout->setContentsMargins(
left_margin,
top_margin,
right_margin,
bottom_margin
);
// bottom_panel is the layer just below the mid_panel. It could be mid_panel or a scroll area.
QWidget* bottom_panel = mid_panel;
if(view_info.m_use_scroll_bar)
{
auto* const scroll_area = new QScrollArea();
scroll_area->setWidget(mid_panel);
scroll_area->setWidgetResizable(true);
bottom_panel = scroll_area;
}
// Set top_panel tool tip
if(!view_info.m_tool_tip.empty())
{
const auto& tool_tip = QString::fromStdString(view_info.m_tool_tip);
top_panel->setToolTip(tool_tip);
mid_panel->setToolTip(tool_tip);
if(mid_panel != bottom_panel)
{
bottom_panel->setToolTip(tool_tip);
}
}
// Setting the class for the bottom_panel (QSS is forwarded to children)
if(!view_info.m_qss_key.empty())
{
bottom_panel->setProperty("class", QString::fromStdString(view_info.m_qss_key));
}
// Manage background color (QSS is forwarded to children)
if(!view_info.m_background_color.empty())
{
std::array<std::uint8_t, 4> rgba {};
data::tools::color::hexa_string_to_rgba(view_info.m_background_color, rgba);
std::stringstream ss;
ss << "QWidget { background-color: rgba("
<< static_cast<std::int16_t>(rgba[0]) << ','
<< static_cast<std::int16_t>(rgba[1]) << ','
<< static_cast<std::int16_t>(rgba[2]) << ','
<< (static_cast<float>(rgba[3]) / 255.F) * 100 << "%); } ";
const QString style = QString::fromStdString(ss.str()) + qApp->styleSheet();
bottom_panel->setStyleSheet(style);
}
// Set minimum/maximum size
bottom_panel->setMinimumSize(
std::max(view_info.m_min_size.first, bottom_panel->minimumWidth()),
std::max(view_info.m_min_size.second, bottom_panel->minimumHeight())
);
bottom_panel->setMaximumSize(
std::min(view_info.m_max_size.first, QWIDGETSIZE_MAX),
std::min(view_info.m_max_size.second, QWIDGETSIZE_MAX)
);
// Add the bottom_panel to the layout
layout->addWidget(bottom_panel);
layout->setStretchFactor(bottom_panel, view_info.m_proportion);
// Create the sub view
auto sub_view = ui::qt::container::widget::make();
sub_view->set_qt_container(top_panel, bottom_panel);
m_sub_views.push_back(sub_view);
// Manage container visibility
if(!view_info.m_visible)
{
sub_view->set_visible(false);
}
}
idx++;
}
}
//-----------------------------------------------------------------------------
void line::destroy_layout()
{
this->destroy_sub_views();
m_parent_container->clean();
}
//-----------------------------------------------------------------------------
} // namespace sight::ui::qt::layout
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