mirror of
https://github.com/JakubMelka/PDF4QT.git
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139 lines
4.0 KiB
C++
139 lines
4.0 KiB
C++
// MIT License
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//
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// Copyright (c) 2018-2025 Jakub Melka and Contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef DIMENSIONTOOL_H
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#define DIMENSIONTOOL_H
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#include "pdfwidgettool.h"
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#include <QAction>
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#include <QPolygonF>
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struct DimensionUnit;
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using DimensionUnits = std::vector<DimensionUnit>;
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struct DimensionUnit
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{
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explicit inline DimensionUnit() = default;
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explicit inline DimensionUnit(pdf::PDFReal scale, QString symbol) :
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scale(scale),
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symbol(qMove(symbol))
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{
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}
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pdf::PDFReal scale = 1.0;
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QString symbol;
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static DimensionUnits getLengthUnits();
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static DimensionUnits getAreaUnits();
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static DimensionUnits getAngleUnits();
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};
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class Dimension
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{
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public:
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enum Type
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{
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Linear,
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Perimeter,
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Area,
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Angular
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};
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inline explicit Dimension() = default;
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inline explicit Dimension(Type type, pdf::PDFInteger pageIndex, pdf::PDFReal measuredValue, std::vector<QPointF> polygon) :
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m_type(type),
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m_pageIndex(pageIndex),
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m_measuredValue(measuredValue),
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m_polygon(qMove(polygon))
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{
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}
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Type getType() const { return m_type; }
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pdf::PDFInteger getPageIndex() const { return m_pageIndex; }
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pdf::PDFReal getMeasuredValue() const { return m_measuredValue; }
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const std::vector<QPointF>& getPolygon() const { return m_polygon; }
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/// Returns true, if definition fo given type is complete
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static bool isComplete(Type type, const std::vector<QPointF>& polygon);
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private:
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Type m_type = Linear;
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pdf::PDFInteger m_pageIndex = -1;
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pdf::PDFReal m_measuredValue = 0.0;
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std::vector<QPointF> m_polygon;
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};
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class DimensionTool : public pdf::PDFWidgetTool
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{
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Q_OBJECT
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private:
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using BaseClass = pdf::PDFWidgetTool;
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public:
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enum Style
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{
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LinearHorizontal,
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LinearVertical,
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Linear,
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Perimeter,
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RectanglePerimeter,
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Area,
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RectangleArea,
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Angle,
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LastStyle
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};
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explicit DimensionTool(Style style, pdf::PDFDrawWidgetProxy* proxy, QAction* action, QObject* parent);
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void drawPage(QPainter* painter,
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pdf::PDFInteger pageIndex,
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const pdf::PDFPrecompiledPage* compiledPage,
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pdf::PDFTextLayoutGetter& layoutGetter,
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const QTransform& pagePointToDevicePointMatrix,
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const pdf::PDFColorConvertor& convertor,
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QList<pdf::PDFRenderError>& errors) const override;
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signals:
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void dimensionCreated(Dimension dimension);
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private:
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void onPointPicked(pdf::PDFInteger pageIndex, QPointF pagePoint);
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void onRectanglePicked(pdf::PDFInteger pageIndex, QRectF pageRectangle);
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QPointF adjustPagePoint(QPointF pagePoint) const;
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Dimension::Type getDimensionType() const;
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pdf::PDFReal getMeasuredValue(pdf::PDFInteger pageIndex, const std::vector<QPointF>& pickedPoints) const;
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Style m_style;
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int m_previewPointPixelSize;
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pdf::PDFPickTool* m_pickTool;
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};
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#endif // DIMENSIONTOOL_H
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