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cea7dbce42
Outlines are in theory implemented (though I'm having trouble finding a simple PDF with outlines to test it on), and thumbnails are not.
106 lines
3.1 KiB
C++
106 lines
3.1 KiB
C++
/*
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* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "OutlineModel.h"
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#include <LibGfx/FontDatabase.h>
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NonnullRefPtr<OutlineModel> OutlineModel::create(const NonnullRefPtr<PDF::OutlineDict>& outline)
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{
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return adopt_ref(*new OutlineModel(outline));
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}
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OutlineModel::OutlineModel(const NonnullRefPtr<PDF::OutlineDict>& outline)
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: m_outline(outline)
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{
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m_closed_item_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/book.png"));
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m_open_item_icon.set_bitmap_for_size(16, Gfx::Bitmap::load_from_file("/res/icons/16x16/book-open.png"));
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}
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void OutlineModel::set_index_open_state(const GUI::ModelIndex& index, bool is_open)
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{
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VERIFY(index.is_valid());
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auto* outline_item = static_cast<PDF::OutlineItem*>(index.internal_data());
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if (is_open) {
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m_open_outline_items.set(outline_item);
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} else {
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m_open_outline_items.remove(outline_item);
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}
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}
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int OutlineModel::row_count(const GUI::ModelIndex& index) const
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{
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if (!index.is_valid())
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return m_outline->children.size();
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auto outline_item = static_cast<PDF::OutlineItem*>(index.internal_data());
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return static_cast<int>(outline_item->children.size());
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}
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int OutlineModel::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 OutlineModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
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{
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VERIFY(index.is_valid());
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auto outline_item = static_cast<PDF::OutlineItem*>(index.internal_data());
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switch (role) {
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case GUI::ModelRole::Display:
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return outline_item->title;
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case GUI::ModelRole::Icon:
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if (m_open_outline_items.contains(outline_item))
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return m_open_item_icon;
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return m_closed_item_icon;
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default:
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return {};
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}
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}
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void OutlineModel::update()
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{
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did_update();
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}
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GUI::ModelIndex OutlineModel::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* outline_item = static_cast<PDF::OutlineItem*>(index.internal_data());
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auto& parent = outline_item->parent;
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if (!parent)
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return {};
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if (parent->parent) {
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auto& grandparent = parent->parent;
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for (size_t i = 0; i < grandparent->children.size(); i++) {
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auto* sibling = &grandparent->children[i];
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if (sibling == index.internal_data())
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return create_index(static_cast<int>(i), 0, sibling);
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}
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} else {
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for (size_t i = 0; i < m_outline->children.size(); i++) {
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auto* sibling = &m_outline->children[i];
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if (sibling == index.internal_data())
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return create_index(static_cast<int>(i), 0, sibling);
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}
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}
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VERIFY_NOT_REACHED();
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}
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GUI::ModelIndex OutlineModel::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_outline->children[row]);
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auto parent_outline_item = static_cast<PDF::OutlineItem*>(parent.internal_data());
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return create_index(row, column, &parent_outline_item->children[row]);
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}
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