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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef __SP_DROPPER_CONTEXT_H__
#define __SP_DROPPER_CONTEXT_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 <2geom/point.h>
#include "color-rgba.h"
#include "display/control/canvas-item-ptr.h"
#include "ui/tools/tool-base.h"
struct SPCanvasItem;
#define SP_DROPPER_CONTEXT(obj) (dynamic_cast<Inkscape::UI::Tools::DropperTool*>((Inkscape::UI::Tools::ToolBase*)obj))
#define SP_IS_DROPPER_CONTEXT(obj) (dynamic_cast<const Inkscape::UI::Tools::DropperTool*>((const Inkscape::UI::Tools::ToolBase*)obj) != NULL)
enum {
SP_DROPPER_PICK_VISIBLE,
SP_DROPPER_PICK_ACTUAL
};
enum {
DONT_REDRAW_CURSOR,
DRAW_FILL_CURSOR,
DRAW_STROKE_CURSOR
};
namespace Inkscape {
class CanvasItemBpath;
namespace UI {
namespace Tools {
class DropperTool : public ToolBase {
public:
DropperTool(SPDesktop *desktop);
~DropperTool() override;
guint32 get_color(bool invert = false, bool non_dropping = false);
sigc::signal<void (ColorRGBA *)> onetimepick_signal;
protected:
bool root_handler(GdkEvent *event) override;
private:
// Stored color.
double R = 0.0;
double G = 0.0;
double B = 0.0;
double alpha = 0.0;
// Stored color taken from canvas. Used by clipboard.
// Identical to R, G, B, alpha if dropping disabled.
double non_dropping_R = 0.0;
double non_dropping_G = 0.0;
double non_dropping_B = 0.0;
double non_dropping_A = 0.0;
bool invert = false; ///< Set color to inverse rgb value
bool stroke = false; ///< Set to stroke color. In dropping mode, set from stroke color
bool dropping = false; ///< When true, get color from selected objects instead of canvas
bool dragging = false; ///< When true, get average color for region on canvas, instead of a single point
double radius = 0.0; ///< Size of region under dragging mode
CanvasItemPtr<CanvasItemBpath> area; ///< Circle depicting region's borders in dragging mode
Geom::Point centre {0, 0}; ///< Center of region in dragging mode
};
}
}
}
#endif
/*
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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