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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/GAbstractView.h>
class GPainter;
// FIXME: Rename this to something without "table cell" in the name.
class GTableCellPaintingDelegate {
public:
virtual ~GTableCellPaintingDelegate() {}
virtual void paint(GPainter&, const Rect&, const Palette&, const GModel&, const GModelIndex&) = 0;
};
class GAbstractColumnView : public GAbstractView {
public:
int item_height() const { return 16; }
bool alternating_row_colors() const { return m_alternating_row_colors; }
void set_alternating_row_colors(bool b) { m_alternating_row_colors = b; }
int header_height() const { return m_headers_visible ? 16 : 0; }
bool headers_visible() const { return m_headers_visible; }
void set_headers_visible(bool headers_visible) { m_headers_visible = headers_visible; }
bool is_column_hidden(int) const;
void set_column_hidden(int, bool);
void set_size_columns_to_fit_content(bool b) { m_size_columns_to_fit_content = b; }
bool size_columns_to_fit_content() const { return m_size_columns_to_fit_content; }
void set_cell_painting_delegate(int column, OwnPtr<GTableCellPaintingDelegate>&&);
int horizontal_padding() const { return m_horizontal_padding; }
Point adjusted_position(const Point&) const;
virtual Rect content_rect(const GModelIndex&) const override;
Rect content_rect(int row, int column) const;
Rect row_rect(int item_index) const;
void scroll_into_view(const GModelIndex&, Orientation);
protected:
virtual ~GAbstractColumnView() override;
explicit GAbstractColumnView(GWidget* parent);
virtual void did_update_model() override;
virtual void mouseup_event(GMouseEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void mousemove_event(GMouseEvent&) override;
virtual void doubleclick_event(GMouseEvent&) override;
virtual void keydown_event(GKeyEvent&) override;
virtual void leave_event(CEvent&) override;
virtual void context_menu_event(GContextMenuEvent&) override;
virtual GModelIndex index_at_event_position(const Point&, bool& is_toggle) const;
virtual void toggle_index(const GModelIndex&) {}
void paint_headers(GPainter&);
Rect header_rect(int column) const;
static const Font& header_font();
void update_headers();
void set_hovered_header_index(int);
struct ColumnData {
int width { 0 };
bool has_initialized_width { false };
bool visibility { true };
RefPtr<GAction> visibility_action;
OwnPtr<GTableCellPaintingDelegate> cell_painting_delegate;
};
ColumnData& column_data(int column) const;
mutable Vector<ColumnData> m_column_data;
GMenu& ensure_header_context_menu();
RefPtr<GMenu> m_header_context_menu;
Rect column_resize_grabbable_rect(int) const;
int column_width(int) const;
void update_content_size();
virtual void update_column_sizes();
virtual int item_count() const;
private:
bool m_headers_visible { true };
bool m_size_columns_to_fit_content { false };
bool m_in_column_resize { false };
bool m_alternating_row_colors { true };
int m_horizontal_padding { 5 };
Point m_column_resize_origin;
int m_column_resize_original_width { 0 };
int m_resizing_column { -1 };
int m_pressed_column_header_index { -1 };
bool m_pressed_column_header_is_pressed { false };
int m_hovered_column_header_index { -1 };
};
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