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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "WidgetTreeModel.h"
#include <AK/StringBuilder.h>
#include <LibGUI/Widget.h>
namespace HackStudio {
WidgetTreeModel::WidgetTreeModel(GUI::Widget& root)
: m_root(root)
{
m_widget_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
}
WidgetTreeModel::~WidgetTreeModel()
{
}
GUI::ModelIndex WidgetTreeModel::index(int row, int column, const GUI::ModelIndex& parent) const
{
if (!parent.is_valid()) {
return create_index(row, column, m_root.ptr());
}
auto& parent_node = *static_cast<GUI::Widget*>(parent.internal_data());
return create_index(row, column, parent_node.child_widgets().at(row));
}
GUI::ModelIndex WidgetTreeModel::parent_index(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return {};
auto& widget = *static_cast<GUI::Widget*>(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 GUI::ModelIndex 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;
}
VERIFY_NOT_REACHED();
return {};
}
int WidgetTreeModel::row_count(const GUI::ModelIndex& index) const
{
if (!index.is_valid())
return 1;
auto& widget = *static_cast<GUI::Widget*>(index.internal_data());
return widget.child_widgets().size();
}
int WidgetTreeModel::column_count(const GUI::ModelIndex&) const
{
return 1;
}
GUI::Variant WidgetTreeModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
{
auto* widget = static_cast<GUI::Widget*>(index.internal_data());
if (role == GUI::ModelRole::Icon) {
return m_widget_icon;
}
if (role == GUI::ModelRole::Display) {
return String::formatted("{} ({})", widget->class_name(), widget->relative_rect());
}
return {};
}
void WidgetTreeModel::update()
{
did_update();
}
GUI::ModelIndex WidgetTreeModel::index_for_widget(GUI::Widget& widget) const
{
int parent_child_index = 0;
for (auto& parent_child : widget.parent_widget()->child_widgets()) {
if (parent_child == &widget)
return create_index(parent_child_index, 0, &widget);
++parent_child_index;
}
return {};
}
}
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