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OpenBoard/src/tools/UBAbstractDrawRuler.cpp

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/*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License,
* 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).
*
* OpenBoard is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBAbstractDrawRuler.h"
#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"
#include "core/memcheck.h"
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);
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;
UBAbstractDrawRuler::UBAbstractDrawRuler()
: mShowButtons(false)
, mAntiScaleRatio(1.0)
{
//we actually need to evaluate pixels per millimeter
QDesktopWidget* desktop = UBApplication::desktop();
int dpiCommon = (desktop->physicalDpiX() + desktop->physicalDpiY()) / 2;
sPixelsPerMillimeter = qRound(dpiCommon / UBGeometryUtils::inchSize);
}
void UBAbstractDrawRuler::create(QGraphicsItem& item)
{
item.setFlag(QGraphicsItem::ItemIsMovable, true);
item.setFlag(QGraphicsItem::ItemIsSelectable, true);
item.setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
item.setAcceptsHoverEvents(true);
mCloseSvgItem = new QGraphicsSvgItem(":/images/closeTool.svg", &item);
mCloseSvgItem->setVisible(false);
mCloseSvgItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
}
UBAbstractDrawRuler::~UBAbstractDrawRuler()
{
}
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
{
return UBResources::resources()->drawLineRulerCursor;
}
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)
{
Q_UNUSED(position);
Q_UNUSED(width);
}
void UBAbstractDrawRuler::DrawLine(const QPointF& position, qreal width)
{
Q_UNUSED(position);
Q_UNUSED(width);
}
void UBAbstractDrawRuler::EndLine()
{}
void UBAbstractDrawRuler::paint()
{
mAntiScaleRatio = 1 / (UBApplication::boardController->systemScaleFactor() * UBApplication::boardController->currentZoom());
QTransform antiScaleTransform;
antiScaleTransform.scale(mAntiScaleRatio, mAntiScaleRatio);
mCloseSvgItem->setTransform(antiScaleTransform);
mCloseSvgItem->setPos(closeButtonRect().topLeft());
}