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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibGUI/Widget.h>
namespace GUI {
class Splitter : public Widget {
C_OBJECT(Splitter);
public:
virtual ~Splitter() override;
protected:
explicit Splitter(Gfx::Orientation);
virtual void paint_event(PaintEvent&) override;
virtual void resize_event(ResizeEvent&) override;
virtual void mousedown_event(MouseEvent&) override;
virtual void mousemove_event(MouseEvent&) override;
virtual void mouseup_event(MouseEvent&) override;
virtual void leave_event(Core::Event&) override;
virtual void did_layout() override;
private:
void recompute_grabbable_rect(const Widget&, const Widget&);
bool get_resize_candidates_at(const Gfx::IntPoint&, Widget*&, Widget*&);
void override_cursor(bool do_override);
Gfx::Orientation m_orientation;
bool m_resizing { false };
bool m_overriding_cursor { false };
Gfx::IntPoint m_resize_origin;
WeakPtr<Widget> m_first_resizee;
WeakPtr<Widget> m_second_resizee;
Gfx::IntSize m_first_resizee_start_size;
Gfx::IntSize m_second_resizee_start_size;
Gfx::IntRect m_grabbable_rect;
};
class VerticalSplitter final : public Splitter {
C_OBJECT(VerticalSplitter)
public:
virtual ~VerticalSplitter() override { }
private:
VerticalSplitter()
: Splitter(Gfx::Orientation::Vertical)
{
}
};
class HorizontalSplitter final : public Splitter {
C_OBJECT(HorizontalSplitter)
public:
virtual ~HorizontalSplitter() override { }
private:
HorizontalSplitter()
: Splitter(Gfx::Orientation::Horizontal)
{
}
};
}
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