107 lines
3.2 KiB
C++
107 lines
3.2 KiB
C++
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/************************************************************************
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**
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** @file
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 14 6, 2017
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**
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** @brief
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** @copyright
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** This source code is part of the Valentine project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 2017 Valentina project
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** <https://bitbucket.org/dismine/valentina> All Rights Reserved.
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**
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** Valentina 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, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Valentina 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#include "global.h"
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#include "../vmisc/def.h"
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#include <QGraphicsItem>
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#include <QGraphicsScene>
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#include <QGraphicsView>
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const qreal defPointRadiusPixel = (2./*mm*/ / 25.4) * PrintDPI;
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const qreal widthMainLine = (1.2/*mm*/ / 25.4) * PrintDPI;
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const qreal widthHairLine = widthMainLine/3.0;
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qreal SceneScale(QGraphicsScene *scene)
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{
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qreal scale = 1;
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if (scene)
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{
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const QList<QGraphicsView *> views = scene->views();
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if (not views.isEmpty())
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{
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scale = views.first()->transform().m11();
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}
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}
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return scale;
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}
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//---------------------------------------------------------------------------------------------------------------------
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QColor CorrectColor(const QGraphicsItem *item, const QColor &color)
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{
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SCASSERT(item != nullptr)
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if (item->isEnabled())
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{
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return color;
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}
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else
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{
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return Qt::gray;
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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QRectF PointRect(qreal radius)
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{
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QRectF rec = QRectF(0, 0, radius*2, radius*2);
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rec.translate(-rec.center().x(), -rec.center().y());
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return rec;
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal ScaledRadius(qreal scale)
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{
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qreal scaledRadius = defPointRadiusPixel;
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if (scale > 1)
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{
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scaledRadius = qMax(defPointRadiusPixel/12, defPointRadiusPixel/scale);
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}
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return scaledRadius;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void ScaleCircleSize(QGraphicsEllipseItem *item, qreal scale)
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{
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SCASSERT(item != nullptr)
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item->setRect(PointRect(ScaledRadius(scale)));
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}
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//---------------------------------------------------------------------------------------------------------------------
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qreal ScaleWidth(qreal width, qreal scale)
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{
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if (scale > 1)
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{
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width = qMax(0.1, width/scale);
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}
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return width;
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}
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