效果:
对文件中指定的关键字(内容)做标记,适用于日志系统特殊化处理。比如对出现Error字段所在的行进行标红高亮
同时支持对关键字的管理以及关键在属性的设置
下面是对内容高亮:
void MainWindow::displayDecodeResilt(const QString &textPath)
{
QFileInfo fileInfo(textPath);
auto path = fileInfo.absolutePath();
auto name = fileInfo.baseName()+".bin";
path = path + "/" + name;
LogTextEdit* text = new LogTextEdit(this);
int indx = mLogPanel->addTab(text, name);
mLogPanel->setTabToolTip(indx, path);
mLogPanel->setCurrentWidget(text);
text->setProperty("path", textPath);
text->setContextMenuPolicy(Qt::NoContextMenu);
QFile inputFile(textPath);
inputFile.open(QIODevice::ReadOnly);
QTextStream in(&inputFile);
in.setCodec("UTF-8");
text->setText(in.readAll());
inputFile.close();
auto keywords = ParseWork::Instance().getKeywords();
foreach (auto key, keywords.keys())
{
auto names = key.split("-");
filterKeyWord(text, names[1], keywords[key]);
}
}
void MainWindow::filterKeyWord(LogTextEdit *obj, const QString &key, const QString &color)
{
if(!obj) return;
QTextDocument *document = obj->document();
bool found = false;
// undo previous change (if any)
//document->undo();
if (key.isEmpty()) {
QMessageBox::information(this, tr("Empty Search Field"),
tr("The search field is empty. "
"Please enter a word and click Find."));
} else {
QTextCursor highlightCursor(document);
QTextCursor cursor(document);
cursor.beginEditBlock();
//! [6]
QTextCharFormat plainFormat(highlightCursor.charFormat());
QTextCharFormat colorFormat = plainFormat;
colorFormat.setForeground(QColor(color));
while (!highlightCursor.isNull() && !highlightCursor.atEnd()) {
highlightCursor = document->find(key, highlightCursor,
QTextDocument::FindWholeWords);
if (!highlightCursor.isNull()) {
found = true;
// highlightCursor.movePosition(QTextCursor::WordRight,
// QTextCursor::KeepAnchor);
highlightCursor.select(QTextCursor::LineUnderCursor);
highlightCursor.mergeCharFormat(colorFormat);
}
}
cursor.endEditBlock();
}
}
void MainWindow::updateCurrentPage()
{
auto widget = mLogPanel->currentWidget();
auto window = qobject_cast<LogTextEdit*>(widget);
if(!window)
return;
window->clear();
auto path = window->property("path").toString();
QFile inputFile(path);
inputFile.open(QIODevice::ReadOnly);
QTextStream in(&inputFile);
in.setCodec("UTF-8");
window->setText(in.readAll());
inputFile.close();
auto keywords = ParseWork::Instance().getKeywords();
foreach (auto key, keywords.keys())
{
auto names = key.split("-");
filterKeyWord(window, names[1], keywords[key]);
}
}
下面是对关键字设置:
#ifndef SETDIALOG_H
#define SETDIALOG_H
#include <QMap>
#include <QDialog>
namespace Ui {
class SetDialog;
}
class QListWidgetItem;
class SetDialog : public QDialog
{
Q_OBJECT
public:
explicit SetDialog(QWidget *parent = nullptr);
~SetDialog();
protected:
void mousePressEvent(QMouseEvent *event);
bool eventFilter(QObject *obj, QEvent *event);
private slots:
void on_okBtn_clicked();
void on_canlBtn_clicked();
void on_colBtn_clicked();
void on_deleteBtn_clicked();
void on_addBtn_clicked();
void itemClicked(QListWidgetItem *item);
void itemRename(QListWidgetItem *item);
private:
void init();
void loadConfig();
private:
Ui::SetDialog *ui;
QString mEditItemText;
QString mCurrentClor;
QMap<QString, QString> mWords;
};
#endif // SETDIALOG_H
#include "setdialog.h"
#include "ui_setdialog.h"
#include "ItemDelegate.h"
#include "parse/parsework.h"
#include <QPair>
#include <QFile>
#include <QDebug>
#include <QKeyEvent>
#include <QMessageBox>
#include <QColorDialog>
SetDialog::SetDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::SetDialog)
{
ui->setupUi(this);
init();
loadConfig();
connect(ui->listWidget, &QListWidget::itemClicked, this, &SetDialog::itemClicked);
connect(ui->listWidget, &QListWidget::itemChanged, this, &SetDialog::itemRename);
connect(ui->listWidget, &QListWidget::itemDoubleClicked, this, [&](QListWidgetItem* item){
mEditItemText = item->text();
});
}
SetDialog::~SetDialog()
{
delete ui;
}
void SetDialog::mousePressEvent(QMouseEvent *event)
{
auto item = ui->listWidget->itemAt(event->pos());
if(!item) ui->listWidget->setCurrentIndex(QModelIndex());
QDialog::mousePressEvent(event);
}
bool SetDialog::eventFilter(QObject *obj, QEvent *event)
{
if(ui->word == obj )
{
if(QEvent::MouseButtonPress == event->type())
{
ui->listWidget->setCurrentIndex(QModelIndex());
}
else if(event->type() == QEvent::KeyPress)
{
QKeyEvent *e = static_cast<QKeyEvent*>(event);
if(e && (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return))
{
on_addBtn_clicked();
return true;
}
}
}
if(ui->listWidget == obj)
{
if(event->type() == QEvent::KeyPress)
{
QKeyEvent *e = static_cast<QKeyEvent*>(event);
if(e && (e->key() == Qt::Key_Delete))
{
on_deleteBtn_clicked();
return true;
}
}
}
return QDialog::eventFilter(obj, event);
}
void SetDialog::on_okBtn_clicked()
{
ParseWork::Instance().setKeywords(mWords);
accept();
}
void SetDialog::on_canlBtn_clicked()
{
reject();
}
void SetDialog::on_colBtn_clicked()
{
auto col = QColorDialog::getColor();
if(!col.isValid())
return;
QPalette pt;
mCurrentClor = col.name(QColor::HexRgb);
pt.setColor(ui->label_2->backgroundRole(), mCurrentClor);
ui->label_2->setAutoFillBackground(true);
ui->label_2->setPalette(pt);
auto item = ui->listWidget->currentItem();
if(!item) return;
item->setData(Qt::TextColorRole, QColor(mCurrentClor));
auto indx = item->data(Qt::UserRole+1).toString();
mWords[indx] = mCurrentClor;
}
void SetDialog::on_deleteBtn_clicked()
{
auto item = ui->listWidget->currentItem();
if(nullptr == item)
return;
mWords.remove(item->data(Qt::UserRole+1).toString());
delete item;
}
void SetDialog::on_addBtn_clicked()
{
auto text = ui->word->text();
if(text.isEmpty())
return;
//check the text wheter exist
QString number("1");
if(!mWords.isEmpty())
number = mWords.lastKey().split("-").first();
auto index = QString::number(number.toInt()+1) + "-" + text;
if(!mWords.contains(index))
{
mWords[index] = mCurrentClor;
QListWidgetItem* item = new QListWidgetItem(text, ui->listWidget);
item->setSizeHint(QSize(item->sizeHint().width(), 30));
item->setData(Qt::TextColorRole, QColor(mCurrentClor));
item->setFlags(item->flags() | Qt::ItemIsEditable);
item->setData(Qt::UserRole+1, index);
ui->word->clear();
}
else{
QMessageBox::warning(this, tr("Warning"), tr("Word already exist!"));
}
}
void SetDialog::itemClicked(QListWidgetItem *item)
{
if(!item)
return;
QPalette pt;
auto key = item->data(Qt::DisplayRole).toString();
auto indx = item->data(Qt::UserRole+1).toString();
pt.setColor(ui->label_2->backgroundRole(), mWords[indx]);
ui->label_2->setPalette(pt);
mCurrentClor = mWords[indx];
}
void SetDialog::itemRename(QListWidgetItem *item)
{
//check wheter the new name exist
if(!mEditItemText.isEmpty())
{
auto indx = item->data(Qt::UserRole+1).toString();
QString newIndx = indx.split("-").first();
newIndx += "-" + item->text();
if(item->text().isEmpty())
{
ui->listWidget->removeItemWidget(item);
mWords.remove(indx);
delete item;
}
else if (mWords.contains(newIndx))
{
QMessageBox::warning(this, tr("Warning"), tr("The keyword already exists"));
QSignalBlocker blocker(ui->listWidget);
item->setText(mEditItemText);
}
else
{
QSignalBlocker blocker(ui->listWidget);
item->setData(Qt::UserRole+1, newIndx);
mWords[newIndx] = mWords[indx];
mWords.remove(indx);
}
mEditItemText.clear();
}
}
void SetDialog::init()
{
ui->word->installEventFilter(this);
ui->listWidget->installEventFilter(this);
ui->label_2->setAutoFillBackground(true);
ui->listWidget->setItemDelegate(new ItemDelegate(this));
QPalette pt;
pt.setColor(ui->label_2->backgroundRole(), "#504652");
ui->label_2->setPalette(pt);
ui->listWidget->setToolTip(tr("Double-click to rename the keyword"));
ui->label_4->setToolTip(tr("Press <delete> key to delete the select keyword"));
ParseWork::Instance().dynamicUpdateStyleSheet(this, ":/qss/src/qss/setting.qss");
}
void SetDialog::loadConfig()
{
mWords.clear();
mWords = ParseWork::Instance().getKeywords();
QListWidgetItem* item;
foreach (auto key, mWords.keys())
{
auto names = key.split("-");
item = new QListWidgetItem(names[1], ui->listWidget);
item->setSizeHint(QSize(item->sizeHint().width(), 30));
item->setData(Qt::TextColorRole, QColor(mWords[key]));
item->setFlags(item->flags() | Qt::ItemIsEditable);
item->setData(Qt::UserRole+1, key);
}
ui->listWidget->setCurrentIndex(QModelIndex());
}
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>SetDialog</class>
<widget class="QDialog" name="SetDialog">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>422</width>
<height>294</height>
</rect>
</property>
<property name="windowTitle">
<string>Setting Dialog</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout_5" stretch="0,1">
<item>
<widget class="QListWidget" name="listWidget">
<property name="sizeAdjustPolicy">
<enum>QAbstractScrollArea::AdjustToContents</enum>
</property>
<property name="editTriggers">
<set>QAbstractItemView::DoubleClicked</set>
</property>
</widget>
</item>
<item>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="spacing">
<number>10</number>
</property>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_4" stretch="0,1,0">
<item>
<widget class="QLabel" name="label_3">
<property name="text">
<string>Color</string>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label_2">
<property name="text">
<string/>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="colBtn">
<property name="text">
<string>SetColor</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
</widget>
</item>
</layout>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_3" stretch="0,1,0">
<item>
<widget class="QLabel" name="label">
<property name="text">
<string>KeyWord</string>
</property>
</widget>
</item>
<item>
<widget class="QLineEdit" name="word"/>
</item>
<item>
<widget class="QPushButton" name="addBtn">
<property name="text">
<string>Add</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeType">
<enum>QSizePolicy::Minimum</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>10</height>
</size>
</property>
</spacer>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_2" stretch="1,0,0">
<property name="spacing">
<number>1</number>
</property>
<item>
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="deleteBtn">
<property name="text">
<string>Remove Select KeyWord</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label_4">
<property name="text">
<string/>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</item>
<item>
<spacer name="verticalSpacer_2">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QPushButton" name="canlBtn">
<property name="text">
<string>Cancel</string>
</property>
<property name="autoDefault">
<bool>false</bool>
</property>
<property name="default">
<bool>false</bool>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="okBtn">
<property name="text">
<string>Save</string>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>
标签:文件,高亮,Qt,item,auto,void,关键字,ui,SetDialog
From: https://blog.csdn.net/weixin_43935710/article/details/137544163