FreeCAD

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// SPDX-License-Identifier: LGPL-2.1-or-later
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/****************************************************************************
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 *                                                                          *
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 *   Copyright (c) 2024 The FreeCAD Project Association AISBL               *
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 *                                                                          *
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 *   This file is part of FreeCAD.                                          *
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 *                                                                          *
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 *   FreeCAD is free software: you can redistribute it and/or modify it     *
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 *   under the terms of the GNU Lesser General Public License as            *
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 *   published by the Free Software Foundation, either version 2.1 of the   *
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 *   License, or (at your option) any later version.                        *
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 *                                                                          *
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 *   FreeCAD is distributed in the hope that it will be useful, but         *
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 *   WITHOUT ANY WARRANTY; without even the implied warranty of             *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU       *
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 *   Lesser General Public License for more details.                        *
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 *                                                                          *
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 *   You should have received a copy of the GNU Lesser General Public       *
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 *   License along with FreeCAD. If not, see                                *
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 *   <https://www.gnu.org/licenses/>.                                       *
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 *                                                                          *
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 ***************************************************************************/
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#include "PreCompiled.h"
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#include "FileCardView.h"
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#include <App/Application.h>
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#include "../App/DisplayedFilesModel.h"
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namespace StartGui
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{
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FileCardView::FileCardView(QWidget* parent)
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    : QListView(parent)
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{
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    QSizePolicy sizePolicy(QSizePolicy::Policy::MinimumExpanding,
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                           QSizePolicy::Policy::MinimumExpanding);
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    sizePolicy.setHeightForWidth(true);
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    setSizePolicy(sizePolicy);
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    setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff);
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    setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff);
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    setViewMode(QListView::ViewMode::IconMode);
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    setFlow(QListView::Flow::LeftToRight);
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    setResizeMode(QListView::ResizeMode::Adjust);
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    setUniformItemSizes(true);
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    setMouseTracking(true);
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    setSpacing(20);
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}
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int FileCardView::heightForWidth(int width) const
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{
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    auto model = this->model();
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    auto delegate = this->itemDelegate();
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    if (!model || !delegate) {
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        return 0;
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    }
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    int numCards = model->rowCount();
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    auto cardSize = delegate->sizeHint(QStyleOptionViewItem(), model->index(0, 0));
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    int cardsPerRow = static_cast<int>(width / cardSize.width());
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    int numRows =
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        static_cast<int>(ceil(static_cast<double>(numCards) / static_cast<double>(cardsPerRow)));
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    int neededHeight = numRows * cardSize.height();
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    auto hGrp = App::GetApplication().GetParameterGroupByPath(
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        "User parameter:BaseApp/Preferences/Mod/Start");
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    int cardSpacing = static_cast<int>(hGrp->GetInt("FileCardSpacing", 20));  // NOLINT
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    return neededHeight + cardSpacing * (numRows - 1) + 2 * cardSpacing;
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}
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QSize FileCardView::sizeHint() const
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{
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    auto hGrp = App::GetApplication().GetParameterGroupByPath(
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        "User parameter:BaseApp/Preferences/Mod/Start");
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    int cardSpacing = static_cast<int>(hGrp->GetInt("FileCardSpacing", 20));  // NOLINT
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    auto model = this->model();
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    auto delegate = this->itemDelegate();
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    if (!model || !delegate) {
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        // The model and/or delegate have not been set yet, this was an early startup call
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        return {cardSpacing, cardSpacing};
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    }
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    int numCards = model->rowCount();
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    auto cardSize = delegate->sizeHint(QStyleOptionViewItem(), model->index(0, 0));
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    return {(cardSize.width() + cardSpacing) * numCards + cardSpacing,
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            cardSize.height() + 2 * cardSpacing};
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}
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}  // namespace StartGui
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