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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/controls/table/table_utils.h"
#include <stddef.h>
#include <algorithm>
#include "base/i18n/rtl.h"
#include "base/notreached.h"
#include "ui/base/models/table_model.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/font_list.h"
#include "ui/gfx/text_utils.h"
#include "ui/views/controls/table/table_view.h"
namespace views {
const int kUnspecifiedColumnWidth = 90;
int WidthForContent(const gfx::FontList& header_font_list,
const gfx::FontList& content_font_list,
int padding,
int header_padding,
const ui::TableColumn& column,
ui::TableModel* model) {
int width = header_padding;
if (!column.title.empty()) {
width =
gfx::GetStringWidth(column.title, header_font_list) + header_padding;
}
for (size_t i = 0, row_count = model->RowCount(); i < row_count; ++i) {
const int cell_width =
gfx::GetStringWidth(model->GetText(i, column.id), content_font_list);
width = std::max(width, cell_width);
}
return width + padding;
}
std::vector<int> CalculateTableColumnSizes(
int width,
int first_column_padding,
const gfx::FontList& header_font_list,
const gfx::FontList& content_font_list,
int padding,
int header_padding,
const std::vector<ui::TableColumn>& columns,
ui::TableModel* model) {
float total_percent = 0;
int non_percent_width = 0;
std::vector<int> content_widths(columns.size(), 0);
for (size_t i = 0; i < columns.size(); ++i) {
const ui::TableColumn& column(columns[i]);
if (column.width <= 0) {
if (column.percent > 0) {
total_percent += column.percent;
// Make sure there is at least enough room for the header.
content_widths[i] =
gfx::GetStringWidth(column.title, header_font_list) + padding +
header_padding;
} else {
content_widths[i] =
WidthForContent(header_font_list, content_font_list, padding,
header_padding, column, model);
if (i == 0) {
content_widths[i] += first_column_padding;
}
}
non_percent_width += content_widths[i];
} else {
content_widths[i] = column.width;
non_percent_width += column.width;
}
}
std::vector<int> widths;
const int available_width = width - non_percent_width;
for (size_t i = 0; i < columns.size(); ++i) {
const ui::TableColumn& column = columns[i];
int column_width = content_widths[i];
if (column.width <= 0 && column.percent > 0 && available_width > 0) {
column_width +=
static_cast<int>(available_width * (column.percent / total_percent));
}
widths.push_back(column_width == 0 ? kUnspecifiedColumnWidth
: column_width);
}
// If no columns have specified a percent give the last column all the extra
// space.
if (!columns.empty() && total_percent == 0.f && available_width > 0 &&
columns.back().width <= 0 && columns.back().percent == 0.f) {
widths.back() += available_width;
}
return widths;
}
int TableColumnAlignmentToCanvasAlignment(
ui::TableColumn::Alignment alignment) {
switch (alignment) {
case ui::TableColumn::LEFT:
return gfx::Canvas::TEXT_ALIGN_LEFT;
case ui::TableColumn::CENTER:
return gfx::Canvas::TEXT_ALIGN_CENTER;
case ui::TableColumn::RIGHT:
return gfx::Canvas::TEXT_ALIGN_RIGHT;
}
NOTREACHED();
}
std::optional<size_t> GetClosestVisibleColumnIndex(const TableView& table,
int x) {
const std::vector<TableView::VisibleColumn>& columns(table.visible_columns());
if (columns.empty()) {
return std::nullopt;
}
for (size_t i = 0; i < columns.size(); ++i) {
if (x <= columns[i].x + columns[i].width) {
return i;
}
}
return columns.size() - 1;
}
ui::TableColumn::Alignment GetMirroredTableColumnAlignment(
ui::TableColumn::Alignment alignment) {
if (!base::i18n::IsRTL()) {
return alignment;
}
switch (alignment) {
case ui::TableColumn::LEFT:
return ui::TableColumn::RIGHT;
case ui::TableColumn::RIGHT:
return ui::TableColumn::LEFT;
case ui::TableColumn::CENTER:
return ui::TableColumn::CENTER;
}
}
} // namespace views
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