mirror of https://github.com/JakubMelka/PDF4QT.git
119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
// Copyright (C) 2019-2021 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFEXCEPTION_H
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#define PDFEXCEPTION_H
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#include <QString>
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namespace pdf
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{
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class PDFException : public std::exception
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{
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public:
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PDFException(const QString& message) :
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m_message(message)
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{
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}
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/// Returns error message
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const QString& getMessage() const { return m_message; }
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private:
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QString m_message;
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};
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enum RenderErrorType
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{
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Error,
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Warning,
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NotImplemented,
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NotSupported,
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Information
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};
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struct PDFRenderError
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{
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explicit PDFRenderError() = default;
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explicit PDFRenderError(RenderErrorType type, QString message) :
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type(type),
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message(std::move(message))
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{
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}
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RenderErrorType type = RenderErrorType::Error;
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QString message;
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};
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class PDFRendererException : public std::exception
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{
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public:
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explicit PDFRendererException(RenderErrorType type, QString message) :
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m_error(type, std::move(message))
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{
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}
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const PDFRenderError& getError() const { return m_error; }
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private:
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PDFRenderError m_error;
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};
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/// Abstract class for reporting render errors
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class PDFRenderErrorReporter
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{
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public:
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explicit PDFRenderErrorReporter() = default;
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virtual ~PDFRenderErrorReporter() = default;
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/// Reports render errors
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/// \param type Error type
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/// \param message Error message
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virtual void reportRenderError(RenderErrorType type, QString message) = 0;
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/// Reports render error, but only once - if same error was already reported,
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/// then no new error is reported.
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/// \param type Error type
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/// \param message Error message
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virtual void reportRenderErrorOnce(RenderErrorType type, QString message) = 0;
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};
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/// Dummy class for reporting render errors
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class PDFRenderErrorReporterDummy : public PDFRenderErrorReporter
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{
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public:
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virtual void reportRenderError(RenderErrorType type, QString message) override
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{
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Q_UNUSED(type);
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Q_UNUSED(message);
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}
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virtual void reportRenderErrorOnce(RenderErrorType type, QString message) override
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{
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Q_UNUSED(type);
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Q_UNUSED(message);
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}
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};
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} // namespace pdf
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#endif // PDFEXCEPTION_H
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