UBAbstractDrawRuler.cpp 4.59 KB
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/*
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 * Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
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 *
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 * Copyright (C) 2013 Open Education Foundation
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 *
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 * Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
 * l'Education Numérique en Afrique (GIP ENA)
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 *
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 * This file is part of OpenBoard.
 *
 * OpenBoard 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
 * the Free Software Foundation, version 3 of the License,
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 * with a specific linking exception for the OpenSSL project's
 * "OpenSSL" library (or with modified versions of it that use the
 * same license as the "OpenSSL" library).
 *
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 * OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include "UBAbstractDrawRuler.h"
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#include <QtSvg>
#include "core/UB.h"
#include "gui/UBResources.h"
#include "domain/UBGraphicsScene.h"
#include "board/UBDrawingController.h"
#include "core/UBApplication.h"
#include "board/UBBoardController.h"
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#include "core/memcheck.h"

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const QColor UBAbstractDrawRuler::sLightBackgroundMiddleFillColor = QColor(0x72, 0x72, 0x72, sFillTransparency);
const QColor UBAbstractDrawRuler::sLightBackgroundEdgeFillColor = QColor(0xc3, 0xc3, 0xc3, sFillTransparency);
const QColor UBAbstractDrawRuler::sLightBackgroundDrawColor = QColor(0x33, 0x33, 0x33, sDrawTransparency);
const QColor UBAbstractDrawRuler::sDarkBackgroundMiddleFillColor = QColor(0xb5, 0xb5, 0xb5, sFillTransparency);
const QColor UBAbstractDrawRuler::sDarkBackgroundEdgeFillColor = QColor(0xdd, 0xdd, 0xdd, sFillTransparency);
const QColor UBAbstractDrawRuler::sDarkBackgroundDrawColor = QColor(0xff, 0xff, 0xff, sDrawTransparency);

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const int UBAbstractDrawRuler::sLeftEdgeMargin = 10;
const int UBAbstractDrawRuler::sDegreeToQtAngleUnit = 16;
const int UBAbstractDrawRuler::sRotationRadius = 15;
const int UBAbstractDrawRuler::sFillTransparency = 127;
const int UBAbstractDrawRuler::sDrawTransparency = 192;
const int UBAbstractDrawRuler::sRoundingRadius = sLeftEdgeMargin / 2;


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UBAbstractDrawRuler::UBAbstractDrawRuler()
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    : mShowButtons(false)
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    , mAntiScaleRatio(1.0)
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{
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    sPixelsPerCentimeter = UBApplication::boardController->activeScene()->backgroundGridSize();
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}
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void UBAbstractDrawRuler::create(QGraphicsItem& item)
{
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    item.setFlag(QGraphicsItem::ItemIsMovable, true);
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    item.setFlag(QGraphicsItem::ItemIsSelectable, true);
    item.setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);

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    item.setAcceptHoverEvents(true);
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    mCloseSvgItem = new QGraphicsSvgItem(":/images/closeTool.svg", &item);
    mCloseSvgItem->setVisible(false);
    mCloseSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
}

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UBAbstractDrawRuler::~UBAbstractDrawRuler()
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{
}

QCursor UBAbstractDrawRuler::moveCursor() const
{
    return Qt::SizeAllCursor;
}

QCursor UBAbstractDrawRuler::rotateCursor() const
{
    return UBResources::resources()->rotateCursor;
}

QCursor UBAbstractDrawRuler::closeCursor() const
{
    return Qt::ArrowCursor;
}

QCursor UBAbstractDrawRuler::drawRulerLineCursor() const
{
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    return UBResources::resources()->drawLineRulerCursor;
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}

QColor UBAbstractDrawRuler::drawColor() const
{
    return scene()->isDarkBackground() ? sDarkBackgroundDrawColor : sLightBackgroundDrawColor;
}

QColor UBAbstractDrawRuler::middleFillColor() const
{
    return scene()->isDarkBackground() ? sDarkBackgroundMiddleFillColor : sLightBackgroundMiddleFillColor;
}

QColor UBAbstractDrawRuler::edgeFillColor() const
{
    return scene()->isDarkBackground() ? sDarkBackgroundEdgeFillColor : sLightBackgroundEdgeFillColor;
}

QFont UBAbstractDrawRuler::font() const
{
    QFont font("Arial");
    font.setPixelSize(16);
    return font;
}

void UBAbstractDrawRuler::StartLine(const QPointF& position, qreal width)
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{
    Q_UNUSED(position);
    Q_UNUSED(width);
}
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void UBAbstractDrawRuler::DrawLine(const QPointF& position, qreal width)
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{
    Q_UNUSED(position);
    Q_UNUSED(width);
}
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void UBAbstractDrawRuler::EndLine()
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{}
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void UBAbstractDrawRuler::paint()
{
    mAntiScaleRatio = 1 / (UBApplication::boardController->systemScaleFactor() * UBApplication::boardController->currentZoom());
    QTransform antiScaleTransform;
    antiScaleTransform.scale(mAntiScaleRatio, mAntiScaleRatio);

    mCloseSvgItem->setTransform(antiScaleTransform);
    mCloseSvgItem->setPos(closeButtonRect().topLeft());

}