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/*
This file is part of Warzone 2100.
Copyright (C) 2021 Warzone 2100 Project
Warzone 2100 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Warzone 2100 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "lib/ivis_opengl/bitimage.h"
#include "lib/ivis_opengl/pieblitfunc.h"
#include "widget.h"
#include "alignment.h"
std::shared_ptr<AlignmentWidget> Alignment::wrap(std::shared_ptr<WIDGET> widget)
{
auto wrap = std::make_shared<AlignmentWidget>(*this);
wrap->attach(widget);
return wrap;
}
void AlignmentWidget::geometryChanged()
{
if (children().empty())
{
return;
}
auto &child = children().front();
int targetWidth = 0;
int targetHeight = 0;
if (alignment.resizing == Alignment::Resizing::Shrink)
{
targetWidth = std::min(width(), child->idealWidth());
targetHeight = std::min(height(), child->idealHeight());
}
else if (alignment.resizing == Alignment::Resizing::Fit)
{
auto fitRatio = std::min(width() / (float)child->idealWidth(), height() / (float)child->idealHeight());
targetWidth = static_cast<int>(child->idealWidth() * fitRatio);
targetHeight = static_cast<int>(child->idealHeight() * fitRatio);
}
WzRect childRect(0, 0, 0, 0);
if (alignment.horizontal == Alignment::Horizontal::Center)
{
childRect.setX(std::max(0, width() - targetWidth) / 2);
}
else if (alignment.horizontal == Alignment::Horizontal::Right)
{
childRect.setX(std::max(0, width() - targetWidth));
}
if (alignment.vertical == Alignment::Vertical::Center)
{
childRect.setY(std::max(0, height() - targetHeight) / 2);
}
else if (alignment.vertical == Alignment::Vertical::Bottom)
{
childRect.setY(std::max(0, height() - targetHeight));
}
// must set width/height **after** setX/setY
childRect.setWidth(targetWidth);
childRect.setHeight(targetHeight);
child->setGeometry(childRect);
}
int32_t AlignmentWidget::idealWidth()
{
return children().empty() ? WIDGET::idealWidth(): children().front()->idealWidth();
}
int32_t AlignmentWidget::idealHeight()
{
return children().empty() ? WIDGET::idealHeight(): children().front()->idealHeight();
}
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