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LibGUI: Start working on GTableView inline editing.

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This is pretty shaky still, but the basic idea is that you subclass GModel
and return true for editable indices. The table view also needs to have its
editable flag set.
This commit is contained in:
Andreas Kling 2019-04-18 22:27:14 +02:00
commit 0e6b273620
Notes: sideshowbarker 2024-07-19 14:39:47 +09:00
9 changed files with 95 additions and 6 deletions
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60
LibGUI/GTableView.cpp
View file

@ -2,6 +2,7 @@
#include <LibGUI/GModel.h>
#include <LibGUI/GScrollBar.h>
#include <LibGUI/GPainter.h>
#include <LibGUI/GTextBox.h>
#include <Kernel/KeyCode.h>
GTableView::GTableView(GWidget* parent)
@ -38,6 +39,21 @@ void GTableView::did_update_model()
update();
}
Rect GTableView::cell_content_rect(int row, int column) const
{
auto row_rect = this->row_rect(row);
int x = 0;
for (int i = 0; i < column; ++i)
x += column_width(i) + horizontal_padding() * 2;
return { horizontal_padding() + row_rect.x() + x, row_rect.y(), column_width(column), item_height() };
}
Rect GTableView::cell_content_rect(const GModelIndex& index) const
{
return cell_content_rect(index.row(), index.column());
}
Rect GTableView::row_rect(int item_index) const
{
return { 0, header_height() + (item_index * item_height()), max(content_size().width(), width()), item_height() };
@ -87,9 +103,13 @@ void GTableView::mousedown_event(GMouseEvent& event)
if (event.button() == GMouseButton::Left) {
auto adjusted_position = event.position().translated(0, vertical_scrollbar().value());
for (int i = 0; i < item_count(); ++i) {
if (row_rect(i).contains(adjusted_position)) {
model()->set_selected_index(model()->index(i, 0));
for (int row = 0, row_count = model()->row_count(); row < row_count; ++row) {
if (!row_rect(row).contains(adjusted_position))
continue;
for (int column = 0, column_count = model()->column_count(); column < column_count; ++column) {
if (!cell_content_rect(row, column).contains(adjusted_position))
continue;
model()->set_selected_index(model()->index(row, column));
update();
return;
}
@ -300,6 +320,38 @@ void GTableView::doubleclick_event(GMouseEvent& event)
return;
if (event.button() == GMouseButton::Left) {
mousedown_event(event);
model()->activate(model()->selected_index());
if (is_editable())
begin_editing(model()->selected_index());
else
model()->activate(model()->selected_index());
}
}
void GTableView::begin_editing(const GModelIndex& index)
{
ASSERT(is_editable());
ASSERT(model());
if (m_edit_index == index)
return;
if (!model()->is_editable(index))
return;
if (m_edit_widget)
delete m_edit_widget;
m_edit_index = index;
m_edit_widget = new GTextBox(this);
m_edit_widget->set_text(model()->data(index, GModel::Role::Display).to_string());
m_edit_widget->set_relative_rect(cell_content_rect(index));
m_edit_widget->set_focus(true);
m_edit_widget->on_return_pressed = [this] {
ASSERT(model());
model()->set_data(m_edit_index, m_edit_widget->text());
stop_editing();
};
}
void GTableView::stop_editing()
{
m_edit_index = { };
m_edit_widget->delete_later();
m_edit_widget = nullptr;
}