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