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/*
* Copyright (C) 2023, KylinSoft Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
**/
#include "poplist.h"
#include "poplistdelegate.h"
#include <QKeyEvent>
#include <QtAlgorithms>
#include <QDebug>
#include <QApplication>
PopList::PopList(QWidget* parent) : QFrame ()
{
m_zoneinfo = new ZoneInfo;
this->initUI();
}
void PopList::initUI() {
m_listView = new QListView(this);
m_listModel = new QStringListModel(this);
m_listView->setContentsMargins(0,4,0,4);
m_listView->setModel(m_listModel);
// 隐藏横竖拖动条
m_listView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_listView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_listView->setUniformItemSizes(true);
m_listView->setSelectionMode(QListView::SingleSelection);
// 不启用条目编辑
m_listView->setEditTriggers(QListView::NoEditTriggers);
PopListDelegate *listDelegate = new PopListDelegate(this);
m_listView->setItemDelegate(listDelegate);
m_listView->setMouseTracking(true);
m_listView->setStyleSheet(m_zoneinfo->readRile(":/list.css"));
setContentsMargins(0, 0, 0, 0);
// 透明
setAttribute(Qt::WA_TranslucentBackground,true);
// 弹出式顶层窗口
this->setFocusPolicy(Qt::StrongFocus);
setWindowFlags(Qt::Popup);
connect(m_listView, &QListView::pressed,
this, &PopList::listActiveSlot);
}
QStringList PopList::stringList() {
return m_listModel->stringList();
}
void PopList::keyPressEvent(QKeyEvent *event) {
if(event->key() == Qt::Key_Escape) {
this->hide();
}
QWidget::keyPressEvent(event);
}
bool PopList::eventFilter(QObject *obj, QEvent *event) {
if(event->type() == QEvent::MouseButtonPress) {
QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);
if (mouseEvent) {
if (!this->geometry().contains(mouseEvent->pos())){
this->hide();
}
}
}
return QObject::eventFilter(obj, event);
}
void PopList::hideEvent(QHideEvent *event) {
qApp->removeEventFilter(this);
this->releaseKeyboard();
QWidget::hideEvent(event);
emit this->listHide();
}
void PopList::showEvent(QShowEvent *event) {
qApp->installEventFilter(this);
QFrame::showEvent(event);
}
void PopList::showPopLists(QPoint pos) {
QSize size = m_listView->size();
//弹出列表移动到鼠标上方
this->move(pos.x() - size.width() / 2 -5, pos.y() - size.height() - 4);
this->show();
//全局键盘事件？
this->grabKeyboard();
}
void PopList::setStringList(QStringList strings) {
m_listModel->setStringList(strings);
int realWidth = 60; // 菜单栏最大宽度,初始化为60
const QFontMetrics mt(m_listView->font());
for(QString& str : strings) {
int itemWidth = mt.width(str);
realWidth = qMax(realWidth, itemWidth);
}
// 文本宽度加margin(40)
int width = realWidth + 40;
// 文本高度加底部间距
int height = 24 * strings.length() + 18;
this->resize(width, height);
m_listView->adjustSize();
m_listView->resize(width, height);
}
void PopList::listActiveSlot(QModelIndex index) {
Q_ASSERT(index.isValid());
if(index.isValid()) {
emit this->listAactive(index.row());
}
}
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