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