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// SPDX-License-Identifier: GPL-2.0-or-later
/* Authors:
* Anshudhar Kumar Singh <anshudhar2001@gmail.com>
*
* Copyright (C) 2021 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef INKSCAPE_UI_WIDGET_EXPORT_PREVIEW_H
#define INKSCAPE_UI_WIDGET_EXPORT_PREVIEW_H
#include <cstdint>
#include <2geom/rect.h>
#include <gtkmm.h>
#include "display/drawing.h"
#include "helper/auto-connection.h"
#include "async/channel.h"
class SPDocument;
class SPObject;
class SPItem;
namespace Inkscape {
class Drawing;
namespace UI {
namespace Dialog {
class ExportPreview;
class PreviewDrawing
{
public:
PreviewDrawing(SPDocument *document);
~PreviewDrawing();
bool render(ExportPreview *widget, uint32_t bg, SPItem *item, unsigned size, Geom::OptRect const &dboxIn);
void set_shown_items(std::vector<SPItem*> &&list = {});
private:
void destruct();
void construct();
SPDocument *_document = nullptr;
std::shared_ptr<Inkscape::Drawing> _drawing;
unsigned _visionkey = 0;
bool _to_destruct = false;
std::vector<SPItem*> _shown_items;
Inkscape::auto_connection _construct_idle;
};
class ExportPreview final : public Gtk::Image
{
public:
ExportPreview() = default;
ExportPreview(BaseObjectType *cobj, Glib::RefPtr<Gtk::Builder> const &) : Gtk::Image(cobj) {}
~ExportPreview() override;
void setDrawing(std::shared_ptr<PreviewDrawing> drawing);
void setItem(SPItem *item);
void setBox(Geom::Rect const &bbox);
void queueRefresh();
void resetPixels(bool new_size = false);
void setSize(int newSize);
void setPreview(Cairo::RefPtr<Cairo::ImageSurface>);
void setBackgroundColor(uint32_t bg_color);
static std::shared_ptr<Inkscape::Drawing> makeDrawing(SPDocument *doc);
private:
int size = 128; // size of preview image
sigc::connection refresh_conn;
SPItem *_item = nullptr;
Geom::OptRect _dbox;
std::shared_ptr<PreviewDrawing> _drawing;
uint32_t _bg_color = 0;
Inkscape::auto_connection _render_idle;
};
} // namespace Dialog
} // namespace UI
} // namespace Inkscape
#endif // INKSCAPE_UI_WIDGET_EXPORT_PREVIEW_H
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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