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path: root/gui/dialogs/IconPickerDialog.cpp
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/* Copyright 2013 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <QKeyEvent>
#include <QPushButton>
#include <QFileDialog>

#include "MultiMC.h"

#include "IconPickerDialog.h"
#include "ui_IconPickerDialog.h"

#include "gui/Platform.h"
#include "gui/widgets/InstanceDelegate.h"

#include "logic/lists/IconList.h"

IconPickerDialog::IconPickerDialog(QWidget *parent)
	: QDialog(parent), ui(new Ui::IconPickerDialog)
{
	MultiMCPlatform::fixWM_CLASS(this);
	ui->setupUi(this);
	setWindowModality(Qt::WindowModal);

	auto contentsWidget = ui->iconView;
	contentsWidget->setViewMode(QListView::IconMode);
	contentsWidget->setFlow(QListView::LeftToRight);
	contentsWidget->setIconSize(QSize(48, 48));
	contentsWidget->setMovement(QListView::Static);
	contentsWidget->setResizeMode(QListView::Adjust);
	contentsWidget->setSelectionMode(QAbstractItemView::SingleSelection);
	contentsWidget->setSpacing(5);
	contentsWidget->setWordWrap(false);
	contentsWidget->setWrapping(true);
	contentsWidget->setUniformItemSizes(true);
	contentsWidget->setTextElideMode(Qt::ElideRight);
	contentsWidget->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
	contentsWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
	contentsWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
	contentsWidget->setItemDelegate(new ListViewDelegate());

	// contentsWidget->setAcceptDrops(true);
	contentsWidget->setDropIndicatorShown(true);
	contentsWidget->viewport()->setAcceptDrops(true);
	contentsWidget->setDragDropMode(QAbstractItemView::DropOnly);
	contentsWidget->setDefaultDropAction(Qt::CopyAction);

	contentsWidget->installEventFilter(this);

	contentsWidget->setModel(MMC->icons().get());

	auto buttonAdd = ui->buttonBox->addButton(tr("Add Icon"), QDialogButtonBox::ResetRole);
	auto buttonRemove =
		ui->buttonBox->addButton(tr("Remove Icon"), QDialogButtonBox::ResetRole);

	connect(buttonAdd, SIGNAL(clicked(bool)), SLOT(addNewIcon()));
	connect(buttonRemove, SIGNAL(clicked(bool)), SLOT(removeSelectedIcon()));

	connect(contentsWidget, SIGNAL(doubleClicked(QModelIndex)), SLOT(activated(QModelIndex)));

	connect(contentsWidget->selectionModel(),
			SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
			SLOT(selectionChanged(QItemSelection, QItemSelection)));
}
bool IconPickerDialog::eventFilter(QObject *obj, QEvent *evt)
{
	if (obj != ui->iconView)
		return QDialog::eventFilter(obj, evt);
	if (evt->type() != QEvent::KeyPress)
	{
		return QDialog::eventFilter(obj, evt);
	}
	QKeyEvent *keyEvent = static_cast<QKeyEvent *>(evt);
	switch (keyEvent->key())
	{
	case Qt::Key_Delete:
		removeSelectedIcon();
		return true;
	case Qt::Key_Plus:
		addNewIcon();
		return true;
	default:
		break;
	}
	return QDialog::eventFilter(obj, evt);
}

void IconPickerDialog::addNewIcon()
{
	//: The title of the select icons open file dialog
	QString selectIcons = tr("Select Icons");
	//: The type of icon files
	QStringList fileNames = QFileDialog::getOpenFileNames(this, selectIcons, QString(),
														  tr("Icons") + "(*.png *.jpg *.jpeg)");
	MMC->icons()->installIcons(fileNames);
}

void IconPickerDialog::removeSelectedIcon()
{
	MMC->icons()->deleteIcon(selectedIconKey);
}

void IconPickerDialog::activated(QModelIndex index)
{
	selectedIconKey = index.data(Qt::UserRole).toString();
	accept();
}

void IconPickerDialog::selectionChanged(QItemSelection selected, QItemSelection deselected)
{
	if (selected.empty())
		return;

	QString key = selected.first().indexes().first().data(Qt::UserRole).toString();
	if (!key.isEmpty())
		selectedIconKey = key;
}

int IconPickerDialog::exec(QString selection)
{
	auto list = MMC->icons();
	auto contentsWidget = ui->iconView;
	selectedIconKey = selection;

	int index_nr = list->getIconIndex(selection);
	auto model_index = list->index(index_nr);
	contentsWidget->selectionModel()->select(
		model_index, QItemSelectionModel::Current | QItemSelectionModel::Select);

	QMetaObject::invokeMethod(this, "delayed_scroll", Qt::QueuedConnection,
							  Q_ARG(QModelIndex, model_index));
	return QDialog::exec();
}

void IconPickerDialog::delayed_scroll(QModelIndex model_index)
{
	auto contentsWidget = ui->iconView;
	contentsWidget->scrollTo(model_index);
}

IconPickerDialog::~IconPickerDialog()
{
	delete ui;
}