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/*
* Copyright 2011 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License version 3 along with this program. If not, see
* <http://www.gnu.org/licenses/>
*
* Authored by: Gordon Allott <gord.allott@canonical.com>
*
*/
#include <Nux/Nux.h>
#include <Nux/VLayout.h>
#include <NuxCore/Logger.h>
#include "unity-shared/DashStyle.h"
#include "unity-shared/GraphicsUtils.h"
#include "FilterBar.h"
#include "FilterExpanderLabel.h"
#include "FilterFactory.h"
namespace unity
{
namespace dash
{
namespace
{
double const DEFAULT_SCALE = 1.0;
}
DECLARE_LOGGER(logger, "unity.dash.filterbar");
NUX_IMPLEMENT_OBJECT_TYPE(FilterBar);
FilterBar::FilterBar(NUX_FILE_LINE_DECL)
: View(NUX_FILE_LINE_PARAM)
, scale(DEFAULT_SCALE)
{
SetLayout(new nux::VLayout(NUX_TRACKER_LOCATION));
scale.changed.connect(sigc::mem_fun(this, &FilterBar::UpdateScale));
UpdateScale(scale);
}
void FilterBar::UpdateScale(double scale)
{
for (auto& filters : filter_map_)
filters.second->scale = scale;
auto& style = dash::Style::Instance();
auto* layout = static_cast<nux::VLayout*>(GetLayout());
layout->SetTopAndBottomPadding(style.GetFilterBarTopPadding().CP(scale) - style.GetFilterHighlightPadding().CP(scale));
layout->SetSpaceBetweenChildren(style.GetSpaceBetweenFilterWidgets().CP(scale) - style.GetFilterHighlightPadding().CP(scale));
}
void FilterBar::SetFilters(Filters::Ptr const& filters)
{
filters_ = filters;
}
void FilterBar::AddFilter(Filter::Ptr const& filter)
{
if (filter_map_.count(filter) > 0)
{
LOG_WARN(logger) << "Attempting to add a filter that has already been added";
return;
}
FilterExpanderLabel* filter_view = factory_.WidgetForFilter(filter);
filter_view->scale = scale();
AddChild(filter_view);
filter_map_[filter] = filter_view;
GetLayout()->AddView(filter_view, 0, nux::MINOR_POSITION_START, nux::MINOR_SIZE_FULL);
}
void FilterBar::RemoveFilter(Filter::Ptr const& filter)
{
for (auto iter: filter_map_)
{
if (iter.first->id == filter->id)
{
FilterExpanderLabel* filter_view = iter.second;
RemoveChild(filter_view);
filter_map_.erase(filter_map_.find(iter.first));
GetLayout()->RemoveChildObject(filter_view);
break;
}
}
}
void FilterBar::ClearFilters()
{
for (auto iter: filter_map_)
{
FilterExpanderLabel* filter_view = iter.second;
RemoveChild(filter_view);
GetLayout()->RemoveChildObject(filter_view);
}
filter_map_.clear();
}
void FilterBar::Draw(nux::GraphicsEngine& graphics_engine, bool force_draw)
{}
void FilterBar::DrawContent(nux::GraphicsEngine& graphics_engine, bool force_draw)
{
graphics_engine.PushClippingRectangle(GetGeometry());
if (!IsFullRedraw() && RedirectedAncestor())
{
for (auto iter: filter_map_)
{
FilterExpanderLabel* filter_view = iter.second;
if (filter_view && filter_view->IsVisible() && filter_view->IsRedrawNeeded())
graphics::ClearGeometry(filter_view->GetGeometry());
}
}
GetLayout()->ProcessDraw(graphics_engine, force_draw);
graphics_engine.PopClippingRectangle();
}
//
// Key navigation
//
bool FilterBar::AcceptKeyNavFocus()
{
return false;
}
//
// Introspection
//
std::string FilterBar::GetName() const
{
return "FilterBar";
}
void FilterBar::AddProperties(debug::IntrospectionData& introspection)
{
introspection.add(GetAbsoluteGeometry());
}
} // namespace dash
} // namespace unity
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