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An SVG keeps every picture at full resolution, whatever size it is drawn at: a folio with 22 phone photos shown at a tenth of their size gave a 270 MB SVG and took 65 s to write, most of it compressing the photos again. The export dialog gets "SVG: smaller pictures" (off by default, kept with the other export settings), and --export-svg gets --svg-small-pictures. With it, a picture is stored at four times the size it is drawn at when that is smaller than the picture; smaller pictures stay whole. Four times is about 375 dpi on a printed folio. The exporter sets Diagram::smallPictures() for its own drawing only, so screen, print, PDF and PNG are unchanged. It is not part of applyProperties(), which every format uses. On that project: --export-svg 84.9 s -> 34.5 s (opening is 20 s of both), 270 MB -> 57 MB, peak memory 2.45 -> 1.86 GB. Rendered at twice the folio size, the two SVGs differ by more than 32/255 on 0.23 % of pixels, along photo detail. tst_svgsmallpictures: an 800x600 picture drawn at 0.1 is stored at 320x240 with the option, through --export-svg and through the dialog's QPicture route, and at 800x600 without it; a 40x30 picture stays whole. It fails when the factor is changed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EXPORT_PROPERTIES_WIDGET_H
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#define EXPORT_PROPERTIES_WIDGET_H
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#include <QtWidgets>
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#include "exportproperties.h"
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/**
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This widget enables users to edit the various options available when
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exporting a project.
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*/
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class ExportPropertiesWidget : public QWidget {
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Q_OBJECT
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// constructors, destructor
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public:
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ExportPropertiesWidget(QWidget * = nullptr);
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ExportPropertiesWidget(const ExportProperties &, QWidget * = nullptr);
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~ExportPropertiesWidget() override;
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private:
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ExportPropertiesWidget(const ExportPropertiesWidget &);
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// methods
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public:
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void setExportProperties(const ExportProperties &);
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ExportProperties exportProperties() const;
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void setPrintingMode(bool);
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public slots:
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void slot_chooseADirectory();
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signals:
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void formatChanged();
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void exportedAreaChanged();
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void optionChanged();
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private:
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void build();
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// attributes
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private:
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QLabel *dirpath_label;
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QLineEdit *dirpath;
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QPushButton *button_browse;
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QLabel *format_label;
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QComboBox *format;
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QCheckBox *draw_grid;
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QCheckBox *draw_border;
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QCheckBox *draw_titleblock;
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QCheckBox *draw_terminals;
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QCheckBox *draw_terminal_names;
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QCheckBox *draw_bg_transparent;
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QCheckBox *draw_colored_conductors;
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QCheckBox *dxf_blocks;
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QCheckBox *dxf_attributes;
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QCheckBox *svg_small_pictures;
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QRadioButton *export_border;
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QRadioButton *export_elements;
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QButtonGroup *exported_content_choices;
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};
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#endif
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