PDF4QT/Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewwidget.h

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2021-03-27 16:06:07 +01:00
// Copyright (C) 2021 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 OUTPUTPREVIEWWIDGET_H
#define OUTPUTPREVIEWWIDGET_H
#include "pdftransparencyrenderer.h"
#include <QWidget>
namespace pdfplugin
{
class OutputPreviewWidget : public QWidget
{
Q_OBJECT
private:
using BaseClass = QWidget;
public:
explicit OutputPreviewWidget(QWidget* parent);
enum DisplayMode
{
Separations,
ColorWarningInkCoverage,
ColorWarningRichBlack,
InkCoverage
};
virtual QSize sizeHint() const override;
virtual QSize minimumSizeHint() const override;
/// Clears all widget contents
void clear();
/// Set active image
void setPageImage(QImage image, pdf::PDFFloatBitmapWithColorSpace originalProcessBitmap, QSizeF pageSizeMM);
const pdf::PDFInkMapper* getInkMapper() const;
void setInkMapper(const pdf::PDFInkMapper* inkMapper);
/// Returns page image size hint (ideal size of page image)
QSize getPageImageSizeHint() const;
protected:
virtual void paintEvent(QPaintEvent* event) override;
private:
QMargins getDrawMargins() const;
QRect getContentRect() const;
QRect getPageImageRect(QRect contentRect) const;
int getInfoBoxWidth() const;
int getInfoBoxContentHorizontalMargin() const;
void buildInfoBoxItems();
void addInfoBoxHeader(QString caption);
void addInfoBoxSeparator();
void addInfoBoxColoredItem(QColor color, QString caption, QString value);
enum InfoBoxStyle
{
Header,
Separator,
ColoredItem
};
struct InfoBoxItem
{
InfoBoxItem(InfoBoxStyle style, QColor color, QString caption, QString value) :
style(style),
color(color),
caption(caption),
value(value)
{
}
InfoBoxStyle style = InfoBoxStyle::Separator;
QColor color;
QString caption;
QString value;
};
const pdf::PDFInkMapper* m_inkMapper;
DisplayMode m_displayMode;
std::vector<InfoBoxItem> m_infoBoxItems;
QImage m_pageImage;
pdf::PDFFloatBitmapWithColorSpace m_originalProcessBitmap;
QSizeF m_pageSizeMM;
};
} // pdfplugin
#endif // OUTPUTPREVIEWWIDGET_H