Library renamed to Pdf4Qt

2025-06-05 21:59:17 +02:00 · 2020-12-20 19:03:58 +01:00
parent 6811820e1a
commit 7614ab8240
506 changed files with 1191 additions and 1081 deletions
--- a/Pdf4QtViewerPlugins/DimensionsPlugin/dimensiontool.h
+++ b/Pdf4QtViewerPlugins/DimensionsPlugin/dimensiontool.h
@@ -0,0 +1,132 @@
+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of Pdf4Qt.
+//
+//    Pdf4Qt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    Pdf4Qt 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 Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with Pdf4Qt.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef DIMENSIONTOOL_H
+#define DIMENSIONTOOL_H
+
+#include "pdfwidgettool.h"
+
+#include <QAction>
+#include <QPolygonF>
+
+struct DimensionUnit;
+using DimensionUnits = std::vector<DimensionUnit>;
+
+struct DimensionUnit
+{
+    explicit inline DimensionUnit() = default;
+    explicit inline DimensionUnit(pdf::PDFReal scale, QString symbol) :
+        scale(scale),
+        symbol(qMove(symbol))
+    {
+
+    }
+
+    pdf::PDFReal scale = 1.0;
+    QString symbol;
+
+    static DimensionUnits getLengthUnits();
+    static DimensionUnits getAreaUnits();
+    static DimensionUnits getAngleUnits();
+};
+
+class Dimension
+{
+public:
+
+    enum Type
+    {
+        Linear,
+        Perimeter,
+        Area,
+        Angular
+    };
+
+    inline explicit Dimension() = default;
+    inline explicit Dimension(Type type, pdf::PDFInteger pageIndex, pdf::PDFReal measuredValue, std::vector<QPointF> polygon) :
+        m_type(type),
+        m_pageIndex(pageIndex),
+        m_measuredValue(measuredValue),
+        m_polygon(qMove(polygon))
+    {
+
+    }
+
+    Type getType() const { return m_type; }
+    pdf::PDFInteger getPageIndex() const { return m_pageIndex; }
+    pdf::PDFReal getMeasuredValue() const { return m_measuredValue; }
+    const std::vector<QPointF>& getPolygon() const { return m_polygon; }
+
+    /// Returns true, if definition fo given type is complete
+    static bool isComplete(Type type, const std::vector<QPointF>& polygon);
+
+private:
+    Type m_type = Linear;
+    pdf::PDFInteger m_pageIndex = -1;
+    pdf::PDFReal m_measuredValue = 0.0;
+    std::vector<QPointF> m_polygon;
+};
+
+class DimensionTool : public pdf::PDFWidgetTool
+{
+    Q_OBJECT
+
+private:
+    using BaseClass = pdf::PDFWidgetTool;
+
+public:
+
+    enum Style
+    {
+        LinearHorizontal,
+        LinearVertical,
+        Linear,
+        Perimeter,
+        RectanglePerimeter,
+        Area,
+        RectangleArea,
+        Angle,
+        LastStyle
+    };
+
+
+    explicit DimensionTool(Style style, pdf::PDFDrawWidgetProxy* proxy, QAction* action, QObject* parent);
+
+    void drawPage(QPainter* painter,
+                  pdf::PDFInteger pageIndex,
+                  const pdf::PDFPrecompiledPage* compiledPage,
+                  pdf::PDFTextLayoutGetter& layoutGetter,
+                  const QMatrix& pagePointToDevicePointMatrix,
+                  QList<pdf::PDFRenderError>& errors) const override;
+
+signals:
+    void dimensionCreated(Dimension dimension);
+
+private:
+    void onPointPicked(pdf::PDFInteger pageIndex, QPointF pagePoint);
+    void onRectanglePicked(pdf::PDFInteger pageIndex, QRectF pageRectangle);
+
+    QPointF adjustPagePoint(QPointF pagePoint) const;
+    Dimension::Type getDimensionType() const;
+    pdf::PDFReal getMeasuredValue(pdf::PDFInteger pageIndex, const std::vector<QPointF>& pickedPoints) const;
+
+    Style m_style;
+    int m_previewPointPixelSize;
+    pdf::PDFPickTool* m_pickTool;
+};
+
+#endif // DIMENSIONTOOL_H