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Code Issues Activity Actions

LibGUI: Allow specifying per-column text alignment.

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This commit is contained in:
Andreas Kling 2019-02-28 11:27:04 +01:00
parent ce7019f38c
commit b4c20789fb
6 changed files with 35 additions and 23 deletions
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8
LibGUI/GTableModel.h
View file

@ -5,18 +5,24 @@
#include <AK/Function.h>
#include <AK/HashTable.h>
#include <LibGUI/GModelIndex.h>
#include <SharedGraphics/TextAlignment.h>
class GTableView;
class GTableModel {
public:
struct ColumnMetadata {
int preferred_width { 0 };
TextAlignment text_alignment { TextAlignment::CenterLeft };
};
virtual ~GTableModel();
virtual int row_count() const = 0;
virtual int column_count() const = 0;
virtual String row_name(int) const { return { }; }
virtual String column_name(int) const { return { }; }
virtual int column_width(int) const { return 0; }
virtual ColumnMetadata column_metadata(int) const { return { }; }
virtual String data(int row, int column) const = 0;
virtual void set_selected_index(GModelIndex) { }
virtual GModelIndex selected_index() const { return GModelIndex(); }

14
LibGUI/GTableView.cpp
View file

@ -87,9 +87,11 @@ void GTableView::paint_event(GPaintEvent&)
int x_offset = 0;
for (int column_index = 0; column_index < m_model->column_count(); ++column_index) {
Rect cell_rect(horizontal_padding + x_offset, y, m_model->column_width(column_index), item_height());
painter.draw_text(cell_rect, m_model->data(row_index, column_index), TextAlignment::CenterLeft, text_color);
x_offset += m_model->column_width(column_index) + horizontal_padding;
auto column_metadata = m_model->column_metadata(column_index);
int column_width = column_metadata.preferred_width;
Rect cell_rect(horizontal_padding + x_offset, y, column_width, item_height());
painter.draw_text(cell_rect, m_model->data(row_index, column_index), column_metadata.text_alignment, text_color);
x_offset += column_width + horizontal_padding;
}
++painted_item_index;
};
@ -103,9 +105,11 @@ void GTableView::paint_event(GPaintEvent&)
painter.fill_rect({ 0, 0, width(), header_height() }, Color::LightGray);
int x_offset = 0;
for (int column_index = 0; column_index < m_model->column_count(); ++column_index) {
Rect cell_rect(x_offset, 0, m_model->column_width(column_index) + horizontal_padding, item_height());
auto column_metadata = m_model->column_metadata(column_index);
int column_width = column_metadata.preferred_width;
Rect cell_rect(x_offset, 0, column_width + horizontal_padding, item_height());
painter.draw_text(cell_rect.translated(horizontal_padding, 0), m_model->column_name(column_index), TextAlignment::CenterLeft, Color::Black);
x_offset += m_model->column_width(column_index) + horizontal_padding;
x_offset += column_width + horizontal_padding;
painter.draw_line(cell_rect.top_left(), cell_rect.bottom_left(), Color::White);
painter.draw_line(cell_rect.top_right(), cell_rect.bottom_right(), Color::DarkGray);
}