d5f735ecec
This patch introduces a simple WidgetTreeModel that models the widget tree inside of a given root GWidget.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
#include "WidgetTreeModel.h"
|
|
#include <AK/StringBuilder.h>
|
|
#include <LibGUI/GWidget.h>
|
|
#include <stdio.h>
|
|
|
|
WidgetTreeModel::WidgetTreeModel(GWidget& root)
|
|
: m_root(root)
|
|
{
|
|
m_widget_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
|
|
}
|
|
|
|
WidgetTreeModel::~WidgetTreeModel()
|
|
{
|
|
}
|
|
|
|
GModelIndex WidgetTreeModel::index(int row, int column, const GModelIndex& parent) const
|
|
{
|
|
if (!parent.is_valid()) {
|
|
return create_index(row, column, m_root.ptr());
|
|
}
|
|
auto& parent_node = *static_cast<GWidget*>(parent.internal_data());
|
|
return create_index(row, column, parent_node.child_widgets().at(row));
|
|
}
|
|
|
|
GModelIndex WidgetTreeModel::parent_index(const GModelIndex& index) const
|
|
{
|
|
if (!index.is_valid())
|
|
return {};
|
|
auto& widget = *static_cast<GWidget*>(index.internal_data());
|
|
if (&widget == m_root.ptr())
|
|
return {};
|
|
|
|
if (widget.parent_widget() == m_root.ptr())
|
|
return create_index(0, 0, m_root.ptr());
|
|
|
|
// Walk the grandparent's children to find the index of widget's parent in its parent.
|
|
// (This is needed to produce the row number of the GModelIndex corresponding to widget's parent.)
|
|
int grandparent_child_index = 0;
|
|
for (auto& grandparent_child : widget.parent_widget()->parent_widget()->child_widgets()) {
|
|
if (grandparent_child == widget.parent_widget())
|
|
return create_index(grandparent_child_index, 0, widget.parent_widget());
|
|
++grandparent_child_index;
|
|
}
|
|
|
|
ASSERT_NOT_REACHED();
|
|
return {};
|
|
}
|
|
|
|
int WidgetTreeModel::row_count(const GModelIndex& index) const
|
|
{
|
|
if (!index.is_valid())
|
|
return 1;
|
|
auto& widget = *static_cast<GWidget*>(index.internal_data());
|
|
return widget.child_widgets().size();
|
|
}
|
|
|
|
int WidgetTreeModel::column_count(const GModelIndex&) const
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
GVariant WidgetTreeModel::data(const GModelIndex& index, Role role) const
|
|
{
|
|
auto* widget = static_cast<GWidget*>(index.internal_data());
|
|
if (role == Role::Icon) {
|
|
return m_widget_icon;
|
|
}
|
|
if (role == Role::Display) {
|
|
return String::format("%s (%s)", widget->class_name(), widget->relative_rect().to_string().characters());
|
|
}
|
|
return {};
|
|
}
|
|
|
|
void WidgetTreeModel::update()
|
|
{
|
|
did_update();
|
|
}
|