147 lines
3.9 KiB
C++
147 lines
3.9 KiB
C++
//
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// Created by Krad on 2021/12/16.
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//
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#include "RollingMessageWidget.h"
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#include <QLabel>
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#include <QThread>
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#include <QDebug>
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const int ROLL_DISTANCE = 32;
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const int WAIT_TIMES = 30;
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RollingMessageWidget::RollingMessageWidget(QWidget *parent) :QWidget(parent){
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this->setFixedHeight(36);
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this->setFixedWidth(500);
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label_current = new QLabel(this);
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label_next = new QLabel(this);
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QPoint p1 = this->mapToGlobal({5,2});
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label_current->setFixedSize(400, 30);
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label_current->show();
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label_current->move(p1);
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label_current->setText(tr("Message of warn!"));
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QPoint p2 = this->mapToGlobal({5,-30});
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label_next->setFixedSize(400, 30);
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label_next->show();
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label_next->move(p2);
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label_next->setText(tr("Message2 of warn!"));
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timerId = startTimer(100);
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}
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void RollingMessageWidget::timerEvent(QTimerEvent *e) {
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if (!this->isVisible()) return;
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//滚动
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if (rolling) {
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//end rolling, reset next
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if (rollStep == ROLL_DISTANCE){
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std::swap(label_current,label_next);
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rolling = false;
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QPoint p3 = this->mapToGlobal({5,-30});
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p3.setX(label_next->geometry().x());
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label_next->move(p3);
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return;
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}
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//rolling
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QPoint p1 = label_current->geometry().topLeft();
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p1.setY(p1.y()+1);
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label_current->move(p1);
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QPoint p2 = label_next->geometry().topLeft();
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p2.setY(p2.y()+1);
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label_next->move(p2);
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rollStep++;
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return ;
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}
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else{
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//有等待的高优先级消息时，不停顿
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if (waitStep == WAIT_TIMES || waitPriorityCount > 0){
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locker.lock();
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label_next->setText(getNextMessage());
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locker.unlock();
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} else{
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waitStep++;
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}
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}
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}
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void RollingMessageWidget::setMessageList(const QStringList &message) {
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//empty, don't set
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if (message.isEmpty()) return;
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messages.clear();
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needRolling = false;
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// set default label
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label_current->setText(message[0]);
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messages.push_back({0,message[0],0});
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//add list
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if (message.length()>0)
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{
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for (int k = 1; k < message.length(); ++k) {
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messages.push_front({k, message[k],-1});
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}
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needRolling = true;
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}
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}
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void RollingMessageWidget::updateMessagePriority(int innerIndex, int priority) {
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//lock thread
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locker.lock();
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//高优先级，需要插入
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if (priority > 0)
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{
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int idx = -1, insert_idx = -1;
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for (int i = 0; i < messages.length(); ++i) {
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if (messages[i].innerId == innerIndex)
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{
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messages[i].priority = priority;
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idx = i;
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}
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else if (insert_idx < 0 && messages[i].priority<1)
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{
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insert_idx = i;
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}
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if (idx>=0 && insert_idx >=0) break;
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}
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insert_idx = insert_idx==-1?0:insert_idx;
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//move
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if(insert_idx<idx)messages.move(idx,insert_idx);
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waitPriorityCount++;
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}
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// 低优先级，更新状态即可
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else{
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for (WarnMessage & message : messages) {
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if (message.innerId == innerIndex) {
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message.priority = -1;
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break;
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}
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}
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}
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locker.unlock();
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}
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QString RollingMessageWidget::getNextMessage() {
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QString ret = "No message";
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int retryCount = 0;
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bool priorityFlag = false;
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while (retryCount<messages.length()){
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messages.move(0,messages.length()-1);
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retryCount++;
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if(messages.last().priority>=0)
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{
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qDebug()<<"get next:"<<messages.last().toString();
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priorityFlag = messages.last().priority>0;
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ret = messages.last().msg;
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messages.last().priority = 0;
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break;
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}
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}
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if (priorityFlag && waitPriorityCount > 0) waitPriorityCount--;
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rollStep = 0;
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rolling = true;
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waitStep = 0;
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return ret;
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}
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