128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (c) 2023 Trial97 <alexandru.tripon97@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "SkinModel.h"
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#include <QFileInfo>
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#include <QImage>
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#include <QPainter>
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#include <QTransform>
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#include "FileSystem.h"
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#include "Json.h"
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SkinModel::SkinModel(QString path) : m_path(path), m_texture(path), m_model(Model::CLASSIC) {}
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SkinModel::SkinModel(QDir skinDir, QJsonObject obj)
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: m_cape_id(Json::ensureString(obj, "capeId")), m_model(Model::CLASSIC), m_url(Json::ensureString(obj, "url"))
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{
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auto name = Json::ensureString(obj, "name");
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auto skinImage = Json::ensureString(obj, "skinImage");
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if (!skinImage.isEmpty()) { // minecraft skin model
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skinImage = skinImage.mid(22);
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m_texture.loadFromData(QByteArray::fromBase64(skinImage.toUtf8()), "PNG");
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auto textureId = Json::ensureString(obj, "textureId");
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if (name.isEmpty()) {
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name = textureId;
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}
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if (Json::ensureBoolean(obj, "slim", false)) {
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m_model = Model::SLIM;
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}
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} else {
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if (auto model = Json::ensureString(obj, "model"); model == "SLIM") {
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m_model = Model::SLIM;
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}
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}
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m_path = skinDir.absoluteFilePath(name) + ".png";
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if (!QFileInfo(m_path).exists() && isValid()) {
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m_texture.save(m_path, "PNG");
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} else {
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m_texture = QPixmap(m_path);
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}
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}
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QString SkinModel::name() const
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{
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return QFileInfo(m_path).baseName();
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}
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bool SkinModel::rename(QString newName)
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{
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auto info = QFileInfo(m_path);
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m_path = FS::PathCombine(info.absolutePath(), newName + ".png");
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return FS::move(info.absoluteFilePath(), m_path);
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}
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QJsonObject SkinModel::toJSON() const
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{
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QJsonObject obj;
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obj["name"] = name();
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obj["capeId"] = m_cape_id;
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obj["url"] = m_url;
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obj["model"] = getModelString();
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return obj;
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}
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QString SkinModel::getModelString() const
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{
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switch (m_model) {
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case CLASSIC:
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return "CLASSIC";
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case SLIM:
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return "SLIM";
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}
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return {};
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}
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bool SkinModel::isValid() const
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{
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return !m_texture.isNull() && (m_texture.size().height() == 32 || m_texture.size().height() == 64) && m_texture.size().width() == 64;
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}
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QPixmap SkinModel::renderFrontBody() const
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{
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auto isSlim = m_model == SLIM;
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auto slimOffset = isSlim ? 1 : 0;
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auto isOldSkin = m_texture.height() < 64;
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auto head = m_texture.copy(QRect(8, 8, 16, 16));
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auto torso = m_texture.copy(QRect(20, 20, 28, 32));
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auto rightArm = m_texture.copy(QRect(44, 20, 48 - slimOffset, 32));
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auto rightLeg = m_texture.copy(QRect(4, 20, 8, 32));
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QPixmap leftArm, leftLeg;
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if (isOldSkin) {
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leftArm = rightArm.transformed(QTransform().scale(-1, 1));
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leftLeg = rightLeg.transformed(QTransform().scale(-1, 1));
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} else {
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leftArm = m_texture.copy(QRect(36, 52, 40 - slimOffset, 64));
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leftLeg = m_texture.copy(QRect(20, 52, 24, 64));
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}
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QPixmap output(16, 32);
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output.fill(Qt::black);
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QPainter p;
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if (!p.begin(&output))
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return {};
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p.drawPixmap(QPoint(4, 0), head);
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p.drawPixmap(QPoint(4, 8), torso);
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p.drawPixmap(QPoint(12, 8), leftArm);
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p.drawPixmap(QPoint(slimOffset, 8), rightArm);
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p.drawPixmap(QPoint(8, 20), leftLeg);
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p.drawPixmap(QPoint(4, 20), leftArm);
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return output.scaled(128, 128, Qt::KeepAspectRatioByExpanding, Qt::FastTransformation);
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} |