dropper-tool.h

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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INKSCAPE_UI_TOOLS_DROPPER_TOOL_H
#define INKSCAPE_UI_TOOLS_DROPPER_TOOL_H
 
/*
 * Tool for picking colors from drawing
 *
 * Authors:
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *
 * Copyright (C) 1999-2002 Authors
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
 
#include "display/control/canvas-item-ptr.h"
#include "ui/tools/tool-base.h"
 
namespace Inkscape { class CanvasItemBpath; }
namespace Inkscape::UI::Tools {
 
class DropperTool : public ToolBase
{
public:
    DropperTool(SPDesktop *desktop);
    ~DropperTool() override;
 
    std::optional<Colors::Color> get_color(bool invert = false, bool non_dropping = false) const;
    sigc::signal<void (Colors::Color const &)> onetimepick_signal;
 
protected:
    bool root_handler(CanvasEvent const &event) override;
 
private:
    // Stored color.
    std::optional<Colors::Color> stored_color;
 
    // Stored color taken from canvas. Used by clipboard.
    // Identical to stored_color if dropping disabled.
    std::optional<Colors::Color> non_dropping_color;
 
    bool invert = false;   
    bool stroke = false;   
    bool dropping = false; 
    // bool dragging = false; ///< When true, get average color for region on canvas, instead of a single point
 
    double radius = 0.0;                       
    CanvasItemPtr<CanvasItemBpath> area;       
    Geom::Point centre;                        
};
 
} // namespace Inkscape::UI::Tools
 
#endif // INKSCAPE_UI_TOOLS_DROPPER_TOOL_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:
*/
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