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GTableView: Add a mode for automatically sizing column to fit content

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You can now call GTableView::set_size_columns_to_fit_content(true) and
the table columns will grow to fit the content. They will never shrink,
only grow.

This means I can spend a lot less time fidgeting with column widths :^)
This commit is contained in:
Andreas Kling 2019-08-09 19:30:24 +02:00
parent be485946b8
commit b5525d4ec3
Notes: sideshowbarker 2024-07-19 12:47:42 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/b5525d4ec34
2 changed files with 47 additions and 2 deletions
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42
Libraries/LibGUI/GTableView.cpp
View File

@ -21,6 +21,39 @@ GTableView::~GTableView()
{
}
void GTableView::update_column_sizes()
{
if (!m_size_columns_to_fit_content)
return;
if (!model())
return;
auto& model = *this->model();
int column_count = model.column_count();
int row_count = model.row_count();
for (int column = 0; column < column_count; ++column) {
if (is_column_hidden(column))
continue;
int header_width = header_font().width(model.column_name(column));
int column_width = header_width;
for (int row = 0; row < row_count; ++row) {
auto cell_data = model.data(model.index(row, column));
int cell_width = 0;
if (cell_data.is_bitmap()) {
cell_width = cell_data.as_bitmap().width();
} else {
cell_width = font().width(cell_data.to_string());
}
column_width = max(column_width, cell_width);
}
auto& column_data = this->column_data(column);
column_data.width = max(column_data.width, column_width);
column_data.has_initialized_width = true;
}
}
void GTableView::update_content_size()
{
if (!model())
@ -41,6 +74,7 @@ void GTableView::update_content_size()
void GTableView::did_update_model()
{
GAbstractView::did_update_model();
update_column_sizes();
update_content_size();
update();
}
@ -71,6 +105,7 @@ int GTableView::column_width(int column_index) const
return 0;
auto& column_data = this->column_data(column_index);
if (!column_data.has_initialized_width) {
ASSERT(!m_size_columns_to_fit_content);
column_data.has_initialized_width = true;
column_data.width = model()->column_metadata(column_index).preferred_width;
}
@ -308,7 +343,7 @@ void GTableView::paint_headers(Painter& painter)
text = model()->column_name(column_index);
}
auto text_rect = cell_rect.translated(horizontal_padding(), 0);
painter.draw_text(text_rect, text, Font::default_bold_font(), TextAlignment::CenterLeft, Color::Black);
painter.draw_text(text_rect, text, header_font(), TextAlignment::CenterLeft, Color::Black);
x_offset += column_width + horizontal_padding() * 2;
}
}
@ -471,3 +506,8 @@ void GTableView::leave_event(CEvent&)
{
window()->set_override_cursor(GStandardCursor::None);
}
const Font& GTableView::header_font()
{
return Font::default_bold_font();
}

7
Libraries/LibGUI/GTableView.h
View File

@ -31,6 +31,9 @@ public:
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; }
Point adjusted_position(const Point&) const;
virtual Rect content_rect(const GModelIndex&) const override;
@ -56,6 +59,8 @@ private:
Rect column_resize_grabbable_rect(int) const;
int column_width(int) const;
void update_content_size();
void update_column_sizes();
static const Font& header_font();
struct ColumnData {
int width { 0 };
@ -69,7 +74,7 @@ private:
int m_horizontal_padding { 5 };
bool m_headers_visible { true };
bool m_alternating_row_colors { true };
bool m_size_columns_to_fit_content { false };
bool m_in_column_resize { false };
Point m_column_resize_origin;
int m_column_resize_original_width { 0 };