mirror of https://github.com/JakubMelka/PDF4QT.git
192 lines
5.2 KiB
C++
192 lines
5.2 KiB
C++
// Copyright (C) 2023 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#include "pdfactioncombobox.h"
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#include "pdfwidgetutils.h"
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#include <QLineEdit>
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#include <QStandardItemModel>
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#include <QSortFilterProxyModel>
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#include <QCompleter>
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namespace pdfviewer
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{
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PDFActionComboBox::PDFActionComboBox(QWidget* parent) :
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BaseClass(parent),
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m_model(nullptr)
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{
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setEditable(true);
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lineEdit()->setPlaceholderText(tr("Find action..."));
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lineEdit()->setClearButtonEnabled(true);
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setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, DEFAULT_WIDTH));
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m_model = new QStandardItemModel(this);
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m_proxyModel = new QSortFilterProxyModel(this);
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m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
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m_proxyModel->setDynamicSortFilter(true);
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m_proxyModel->setFilterKeyColumn(0);
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m_proxyModel->setFilterRole(Qt::DisplayRole);
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m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
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m_proxyModel->setSortLocaleAware(true);
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m_proxyModel->setSortRole(Qt::DisplayRole);
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m_proxyModel->setSourceModel(m_model);
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setFocusPolicy(Qt::StrongFocus);
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setCompleter(nullptr);
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setInsertPolicy(QComboBox::NoInsert);
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/*
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completer()->setCompletionMode(QCompleter::PopupCompletion);
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completer()->setCompletionColumn(-1);
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completer()->setFilterMode(Qt::MatchContains | Qt::MatchWildcard);
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completer()->setCaseSensitivity(Qt::CaseInsensitive);
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completer()->setModelSorting(QCompleter::UnsortedModel);*/
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connect(this, &PDFActionComboBox::activated, this, &PDFActionComboBox::onActionActivated);
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connect(this, &PDFActionComboBox::editTextChanged, this, &PDFActionComboBox::onEditTextChanged, Qt::QueuedConnection);
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setModel(m_proxyModel);
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}
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QSize PDFActionComboBox::sizeHint() const
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{
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QSize sizeHint = BaseClass::sizeHint();
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sizeHint.setWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, DEFAULT_WIDTH));
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return sizeHint;
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}
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QSize PDFActionComboBox::minimumSizeHint() const
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{
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QSize sizeHint = BaseClass::minimumSizeHint();
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sizeHint.setWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, DEFAULT_WIDTH));
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return sizeHint;
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}
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void PDFActionComboBox::addQuickFindAction(QAction* action)
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{
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if (std::find(m_actions.begin(), m_actions.end(), action) == m_actions.end())
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{
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m_actions.push_back(action);
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connect(action, &QAction::changed, this, &PDFActionComboBox::onActionChanged);
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updateAction(action);
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}
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}
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void PDFActionComboBox::onActionChanged()
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{
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QAction* action = qobject_cast<QAction*>(sender());
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updateAction(action);
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}
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void PDFActionComboBox::onActionActivated(int index)
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{
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QVariant actionData = itemData(index, Qt::UserRole);
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QAction* action = actionData.value<QAction*>();
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lineEdit()->clear();
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setCurrentIndex(-1);
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if (action && action->isEnabled())
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{
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action->trigger();
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}
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}
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void PDFActionComboBox::onEditTextChanged(const QString& text)
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{
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if (text.isEmpty())
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{
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m_proxyModel->setFilterFixedString(QString());
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}
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else if (text.contains(QChar('*')) || text.contains(QChar('?')))
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{
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m_proxyModel->setFilterWildcard(text);
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}
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else
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{
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m_proxyModel->setFilterFixedString(text);
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}
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if (!text.isEmpty())
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{
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showPopup();
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}
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else
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{
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hidePopup();
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}
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lineEdit()->setFocus();
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lineEdit()->setCursorPosition(text.size());
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}
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void PDFActionComboBox::updateAction(QAction* action)
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{
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if (!action)
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{
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return;
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}
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int actionIndex = findAction(action);
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if (action->isEnabled())
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{
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if (actionIndex == -1)
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{
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QStandardItem* item = new QStandardItem(action->icon(), action->text());
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item->setData(QVariant::fromValue(action), Qt::UserRole);
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m_model->appendRow(item);
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}
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else
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{
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QStandardItem* item = m_model->item(actionIndex);
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item->setIcon(action->icon());
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item->setText(action->text());
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}
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}
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else
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{
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// Remove action from the model
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if (actionIndex != -1)
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{
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m_model->removeRow(actionIndex);
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}
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}
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setCurrentIndex(-1);
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}
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int PDFActionComboBox::findAction(QAction* action)
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{
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const int rowCount = m_model->rowCount();
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for (int i = 0; i < rowCount; ++i)
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{
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QModelIndex index = m_model->index(i, 0);
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QAction* currentAction = index.data(Qt::UserRole).value<QAction*>();
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if (currentAction == action)
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{
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return i;
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}
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}
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return -1;
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}
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} // namespace pdfviewer
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