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50
51#include "stylesheeteditor.h"
52
53#include <QFile>
54#include <QRegularExpression>
55#include <QStyleFactory>
56
57StyleSheetEditor::StyleSheetEditor(QWidget *parent)
58 : QDialog(parent)
59{
60 ui.setupUi(this);
61
62 QRegularExpression regExp("^.(.*)\\+?Style$");
63 QString defaultStyle = QApplication::style()->metaObject()->className();
64 QRegularExpressionMatch match = regExp.match(subject: defaultStyle);
65
66 if (match.hasMatch())
67 defaultStyle = match.captured(nth: 1);
68
69 ui.styleCombo->addItems(texts: QStyleFactory::keys());
70 ui.styleCombo->setCurrentIndex(ui.styleCombo->findText(text: defaultStyle, flags: Qt::MatchContains));
71 ui.styleSheetCombo->setCurrentIndex(ui.styleSheetCombo->findText(text: "Coffee"));
72 loadStyleSheet(sheetName: "Coffee");
73}
74
75void StyleSheetEditor::on_styleCombo_activated(const QString &styleName)
76{
77 qApp->setStyle(styleName);
78 ui.applyButton->setEnabled(false);
79}
80
81void StyleSheetEditor::on_styleSheetCombo_activated(const QString &sheetName)
82{
83 loadStyleSheet(sheetName);
84}
85
86void StyleSheetEditor::on_styleTextEdit_textChanged()
87{
88 ui.applyButton->setEnabled(true);
89}
90
91void StyleSheetEditor::on_applyButton_clicked()
92{
93 qApp->setStyleSheet(ui.styleTextEdit->toPlainText());
94 ui.applyButton->setEnabled(false);
95}
96
97void StyleSheetEditor::loadStyleSheet(const QString &sheetName)
98{
99 QFile file(":/qss/" + sheetName.toLower() + ".qss");
100 file.open(flags: QFile::ReadOnly);
101 QString styleSheet = QString::fromLatin1(str: file.readAll());
102
103 ui.styleTextEdit->setPlainText(styleSheet);
104 qApp->setStyleSheet(styleSheet);
105 ui.applyButton->setEnabled(false);
106}
107

source code of qtbase/examples/widgets/widgets/stylesheet/stylesheeteditor.cpp