mirror of
https://github.com/RGBCube/serenity
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d4b87fb18e
If selecting in a large icon view, and dragging the mouse outside of the widget, or close to the border of it, start scrolling automatically. This allows for selecting large amount of items that exceed the amount that can be displayed.
90 lines
3.5 KiB
C++
90 lines
3.5 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/AbstractView.h>
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#include <LibGUI/Forward.h>
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namespace GUI {
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class IconView : public AbstractView {
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C_OBJECT(IconView)
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public:
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virtual ~IconView() override;
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int content_width() const;
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int horizontal_padding() const { return m_horizontal_padding; }
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void scroll_into_view(const ModelIndex&, Orientation);
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Gfx::IntSize effective_item_size() const { return m_effective_item_size; }
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int model_column() const { return m_model_column; }
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void set_model_column(int column) { m_model_column = column; }
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virtual ModelIndex index_at_event_position(const Gfx::IntPoint&) const override;
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virtual void select_all() override;
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private:
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IconView();
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virtual void did_update_model(unsigned flags) override;
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virtual void paint_event(PaintEvent&) override;
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virtual void second_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 keydown_event(KeyEvent&) override;
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virtual void drag_move_event(DragEvent&) override;
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int item_count() const;
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Gfx::IntRect item_rect(int item_index) const;
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Vector<int> items_intersecting_rect(const Gfx::IntRect&) const;
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void update_content_size();
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void get_item_rects(int item_index, const Gfx::Font&, const Variant& item_text, Gfx::IntRect& item_rect, Gfx::IntRect& icon_rect, Gfx::IntRect& text_rect) const;
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bool update_rubber_banding(const Gfx::IntPoint&);
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void scroll_out_of_view_timer_fired();
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int m_horizontal_padding { 5 };
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int m_model_column { 0 };
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int m_visual_column_count { 0 };
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int m_visual_row_count { 0 };
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Gfx::IntSize m_effective_item_size { 80, 80 };
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bool m_rubber_banding { false };
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bool m_rubber_banding_store_selection { false };
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RefPtr<Core::Timer> m_out_of_view_timer;
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Gfx::IntPoint m_out_of_view_position;
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Gfx::IntPoint m_rubber_band_origin;
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Gfx::IntPoint m_rubber_band_current;
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Vector<ModelIndex> m_rubber_band_remembered_selection;
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ModelIndex m_drop_candidate_index;
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};
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}
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