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e2f32b8f9d
Instead of everyone overriding save_to() and set_property() and doing a pretty asymmetric job of implementing the various properties, let's add a bit of structure here. Object properties are now represented by a Core::Property. Properties are registered with a getter and setter (optional) in constructors. I've added some convenience macros for creating and registering properties, but this does still feel a bit bulky. We'll have to iterate on this and see where it goes.
126 lines
4.4 KiB
C++
126 lines
4.4 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 TabWidget : public Widget {
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C_OBJECT(TabWidget)
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public:
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enum TabPosition {
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Top,
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Bottom,
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};
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virtual ~TabWidget() override;
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TabPosition tab_position() const { return m_tab_position; }
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void set_tab_position(TabPosition);
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int active_tab_index() const;
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Widget* active_widget() { return m_active_widget.ptr(); }
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const Widget* active_widget() const { return m_active_widget.ptr(); }
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void set_active_widget(Widget*);
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int bar_height() const { return m_bar_visible ? 21 : 0; }
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int container_padding() const { return m_container_padding; }
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void set_container_padding(int padding) { m_container_padding = padding; }
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void add_widget(const StringView&, Widget&);
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void remove_widget(Widget&);
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template<class T, class... Args>
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T& add_tab(const StringView& title, Args&&... args)
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{
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auto t = T::construct(forward<Args>(args)...);
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add_widget(title, *t);
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return *t;
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}
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void remove_tab(Widget& tab) { remove_widget(tab); }
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void set_tab_title(Widget& tab, const StringView& title);
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void set_tab_icon(Widget& tab, const Gfx::Bitmap*);
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void activate_next_tab();
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void activate_previous_tab();
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void set_text_alignment(Gfx::TextAlignment alignment) { m_text_alignment = alignment; }
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Gfx::TextAlignment text_alignment() const { return m_text_alignment; }
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bool uniform_tabs() const { return m_uniform_tabs; }
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void set_uniform_tabs(bool uniform_tabs) { m_uniform_tabs = uniform_tabs; }
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int uniform_tab_width() const;
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void set_bar_visible(bool bar_visible);
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bool is_bar_visible() const { return m_bar_visible; };
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Function<void(Widget&)> on_change;
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Function<void(Widget&)> on_middle_click;
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Function<void(Widget&, const ContextMenuEvent&)> on_context_menu_request;
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protected:
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TabWidget();
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virtual void paint_event(PaintEvent&) override;
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virtual void child_event(Core::ChildEvent&) 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 leave_event(Core::Event&) override;
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virtual void keydown_event(KeyEvent&) override;
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virtual void context_menu_event(ContextMenuEvent&) override;
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private:
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Gfx::IntRect child_rect_for_size(const Gfx::IntSize&) const;
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Gfx::IntRect button_rect(int index) const;
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Gfx::IntRect bar_rect() const;
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Gfx::IntRect container_rect() const;
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void update_bar();
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RefPtr<Widget> m_active_widget;
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struct TabData {
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int width(const Gfx::Font&) const;
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String title;
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RefPtr<Gfx::Bitmap> icon;
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Widget* widget { nullptr };
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};
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Vector<TabData> m_tabs;
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TabPosition m_tab_position { TabPosition::Top };
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int m_hovered_tab_index { -1 };
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int m_container_padding { 2 };
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Gfx::TextAlignment m_text_alignment { Gfx::TextAlignment::Center };
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bool m_uniform_tabs { false };
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bool m_bar_visible { true };
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};
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}
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