/*
* 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.
*/
#include <AK/StringBuilder.h>
#include <LibGUI/Action.h>
#include <LibGUI/HeaderView.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Model.h>
#include <LibGUI/ModelEditingDelegate.h>
#include <LibGUI/Painter.h>
#include <LibGUI/ScrollBar.h>
#include <LibGUI/TableView.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/Window.h>
#include <LibGfx/Palette.h>
namespace GUI {
TableView::TableView()
{
set_fill_with_background_color(true);
set_background_role(ColorRole::Base);
set_foreground_role(ColorRole::BaseText);
}
TableView::~TableView()
{
}
void TableView::paint_event(PaintEvent& event)
{
Color widget_background_color = palette().color(background_role());
Frame::paint_event(event);
Painter painter(*this);
painter.add_clip_rect(frame_inner_rect());
painter.add_clip_rect(event.rect());
if (fill_with_background_color())
painter.fill_rect(event.rect(), widget_background_color);
painter.translate(frame_thickness(), frame_thickness());
painter.translate(-horizontal_scrollbar().value(), -vertical_scrollbar().value());
if (!model())
return;
int exposed_width = max(content_size().width(), width());
int x_offset = row_header().is_visible() ? row_header().width() : 0;
int y_offset = column_header().is_visible() ? column_header().height() : 0;
bool dummy;
int first_visible_row = index_at_event_position(frame_inner_rect().top_left(), dummy).row();
int last_visible_row = index_at_event_position(frame_inner_rect().bottom_right(), dummy).row();
if (first_visible_row == -1)
first_visible_row = 0;
if (last_visible_row == -1)
last_visible_row = model()->row_count() - 1;
int painted_item_index = first_visible_row;
for (int row_index = first_visible_row; row_index <= last_visible_row; ++row_index) {
bool is_selected_row = selection().contains_row(row_index);
int y = y_offset + painted_item_index * row_height();
Color background_color;
Color key_column_background_color;
if (is_selected_row && highlight_selected_rows()) {
background_color = is_focused() ? palette().selection() : palette().inactive_selection();
key_column_background_color = is_focused() ? palette().selection() : palette().inactive_selection();
} else {
if (alternating_row_colors() && (painted_item_index % 2)) {
background_color = widget_background_color.darkened(0.8f);
key_column_background_color = widget_background_color.darkened(0.7f);
} else {
background_color = widget_background_color;
key_column_background_color = widget_background_color.darkened(0.9f);
}
}
painter.fill_rect(row_rect(painted_item_index), background_color);
int x = x_offset;
for (int column_index = 0; column_index < model()->column_count(); ++column_index) {
if (!column_header().is_section_visible(column_index))
continue;
int column_width = this->column_width(column_index);
bool is_key_column = m_key_column == column_index;
Gfx::IntRect cell_rect(horizontal_padding() + x, y, column_width, row_height());
auto cell_rect_for_fill = cell_rect.inflated(horizontal_padding() * 2, 0);
if (is_key_column)
painter.fill_rect(cell_rect_for_fill, key_column_background_color);
auto cell_index = model()->index(row_index, column_index);
if (auto* delegate = column_painting_delegate(column_index)) {
delegate->paint(painter, cell_rect, palette(), cell_index);
} else {
auto data = cell_index.data();
if (data.is_bitmap()) {
painter.blit(cell_rect.location(), data.as_bitmap(), data.as_bitmap().rect());
} else if (data.is_icon()) {
if (auto bitmap = data.as_icon().bitmap_for_size(16)) {
if (m_hovered_index.is_valid() && cell_index.row() == m_hovered_index.row())
painter.blit_brightened(cell_rect.location(), *bitmap, bitmap->rect());
else
painter.blit(cell_rect.location(), *bitmap, bitmap->rect());
}
} else {
Color text_color;
if (is_selected_row)
text_color = is_focused() ? palette().selection_text() : palette().inactive_selection_text();
else
text_color = cell_index.data(ModelRole::ForegroundColor).to_color(palette().color(foreground_role()));
if (!is_selected_row) {
auto cell_background_color = cell_index.data(ModelRole::BackgroundColor);
if (cell_background_color.is_valid())
painter.fill_rect(cell_rect_for_fill, cell_background_color.to_color(background_color));
}
auto text_alignment = cell_index.data(ModelRole::TextAlignment).to_text_alignment(Gfx::TextAlignment::CenterLeft);
painter.draw_text(cell_rect, data.to_string(), font_for_index(cell_index), text_alignment, text_color, Gfx::TextElision::Right);
}
}
if (m_grid_style == GridStyle::Horizontal || m_grid_style == GridStyle::Both)
painter.draw_line(cell_rect_for_fill.bottom_left(), cell_rect_for_fill.bottom_right(), palette().ruler());
if (m_grid_style == GridStyle::Vertical || m_grid_style == GridStyle::Both)
painter.draw_line(cell_rect_for_fill.top_right(), cell_rect_for_fill.bottom_right(), palette().ruler());
if (m_cursor_style == CursorStyle::Item && cell_index == cursor_index())
painter.draw_rect(cell_rect_for_fill, palette().text_cursor());
x += column_width + horizontal_padding() * 2;
}
++painted_item_index;
};
Gfx::IntRect unpainted_rect(0, column_header().height() + painted_item_index * row_height(), exposed_width, height());
if (fill_with_background_color())
painter.fill_rect(unpainted_rect, widget_background_color);
}
void TableView::keydown_event(KeyEvent& event)
{
if (!model())
return;
if (event.key() == KeyCode::Key_Return) {
if (is_editable() && edit_triggers() & EditTrigger::EditKeyPressed)
begin_editing(cursor_index());
else
activate(cursor_index());
return;
}
AbstractTableView::keydown_event(event);
if (event.is_accepted())
return;
if (is_editable() && edit_triggers() & EditTrigger::AnyKeyPressed && !event.text().is_empty()) {
begin_editing(cursor_index());
if (m_editing_delegate)
m_editing_delegate->set_value(event.text());
}
}
void TableView::move_cursor(CursorMovement movement, SelectionUpdate selection_update)
{
if (!model())
return;
auto& model = *this->model();
switch (movement) {
case CursorMovement::Left:
move_cursor_relative(0, -1, selection_update);
break;
case CursorMovement::Right:
move_cursor_relative(0, 1, selection_update);
break;
case CursorMovement::Up:
move_cursor_relative(-1, 0, selection_update);
break;
case CursorMovement::Down:
move_cursor_relative(1, 0, selection_update);
break;
case CursorMovement::Home: {
auto index = model.index(0, 0);
set_cursor(index, selection_update);
scroll_into_view(index, false, true);
break;
}
case CursorMovement::End: {
auto index = model.index(model.row_count() - 1, 0);
set_cursor(index, selection_update);
scroll_into_view(index, false, true);
break;
}
case CursorMovement::PageUp: {
int items_per_page = visible_content_rect().height() / row_height();
auto old_index = selection().first();
auto new_index = model.index(max(0, old_index.row() - items_per_page), old_index.column());
if (model.is_valid(new_index))
set_cursor(new_index, selection_update);
break;
}
case CursorMovement::PageDown: {
int items_per_page = visible_content_rect().height() / row_height();
auto old_index = selection().first();
auto new_index = model.index(min(model.row_count() - 1, old_index.row() + items_per_page), old_index.column());
if (model.is_valid(new_index))
set_cursor(new_index, selection_update);
break;
}
}
}
void TableView::set_grid_style(GridStyle style)
{
if (m_grid_style == style)
return;
m_grid_style = style;
update();
}
void TableView::set_cursor_style(CursorStyle style)
{
if (m_cursor_style == style)
return;
m_cursor_style = style;
update();
}
}