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https://github.com/RGBCube/serenity
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44e371635e
This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
100 lines
3.4 KiB
C++
100 lines
3.4 KiB
C++
/*
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* Copyright (c) 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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#include <LibGfx/Orientation.h>
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namespace GUI {
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class HeaderView final : public Widget {
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C_OBJECT(HeaderView);
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public:
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virtual ~HeaderView() override;
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Gfx::Orientation orientation() const { return m_orientation; }
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Model* model();
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const Model* model() const;
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void set_section_size(int section, int size);
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int section_size(int section) const;
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Gfx::TextAlignment section_alignment(int section) const;
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void set_section_alignment(int section, Gfx::TextAlignment);
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bool is_section_visible(int section) const;
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void set_section_visible(int section, bool);
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int section_count() const;
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Gfx::IntRect section_rect(int section) const;
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private:
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HeaderView(AbstractTableView&, Gfx::Orientation);
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virtual void paint_event(PaintEvent&) 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 context_menu_event(ContextMenuEvent&) override;
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virtual void leave_event(Core::Event&) override;
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int horizontal_padding() const { return 5; }
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Gfx::IntRect section_resize_grabbable_rect(int) const;
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Menu& ensure_context_menu();
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RefPtr<Menu> m_context_menu;
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AbstractTableView& m_table_view;
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Gfx::Orientation m_orientation { Gfx::Orientation::Horizontal };
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struct SectionData {
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int size { 0 };
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bool has_initialized_size { false };
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bool visibility { true };
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RefPtr<Action> visibility_action;
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Gfx::TextAlignment alignment { Gfx::TextAlignment::CenterLeft };
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};
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SectionData& section_data(int section) const;
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void set_hovered_section(int);
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mutable Vector<SectionData> m_section_data;
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bool m_in_section_resize { false };
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Gfx::IntPoint m_section_resize_origin;
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int m_section_resize_original_width { 0 };
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int m_resizing_section { -1 };
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int m_pressed_section { -1 };
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bool m_pressed_section_is_pressed { false };
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int m_hovered_section { -1 };
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};
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}
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