Wizards: Support using #pragma once instead of include guards

Allow users to choose #pragma once instead of #ifndef include guards in
generated header files.

Fixes: QTCREATORBUG-12166
Change-Id: I3ba41c7570beb9c5958e174b5581fcc25855050f
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Filip Bucek <fbucek@atlas.cz>

1 files changed, 6 insertions, 5 deletions

diff --git a/src/plugins/cpptools/cppfilesettingspage.cpp b/src/plugins/cpptools/cppfilesettingspage.cpp
index 5c172e89a7..5ff64b165d 100644
--- a/src/plugins/cpptools/cppfilesettingspage.cpp
+++ b/src/plugins/cpptools/cppfilesettingspage.cpp
@@ -55,6 +55,7 @@ static const char headerSuffixKeyC[] = "HeaderSuffix";
 static const char sourceSuffixKeyC[] = "SourceSuffix";
 static const char headerSearchPathsKeyC[] = "HeaderSearchPaths";
 static const char sourceSearchPathsKeyC[] = "SourceSearchPaths";
+static const char headerPragmaOnceC[] = "HeaderPragmaOnce";
 static const char licenseTemplatePathKeyC[] = "LicenseTemplate";
 
 const char *licenseTemplateTemplate = QT_TRANSLATE_NOOP("CppTools::Internal::CppFileSettingsWidget",
@@ -68,11 +69,6 @@ const char *licenseTemplateTemplate = QT_TRANSLATE_NOOP("CppTools::Internal::Cpp
 namespace CppTools {
 namespace Internal {
 
-CppFileSettings::CppFileSettings() :
-    lowerCaseFiles(false)
-{
-}
-
 void CppFileSettings::toSettings(QSettings *s) const
 {
     s->beginGroup(QLatin1String(Constants::CPPTOOLS_SETTINGSGROUP));
@@ -83,6 +79,7 @@ void CppFileSettings::toSettings(QSettings *s) const
     s->setValue(QLatin1String(headerSearchPathsKeyC), headerSearchPaths);
     s->setValue(QLatin1String(sourceSearchPathsKeyC), sourceSearchPaths);
     s->setValue(QLatin1String(Constants::LOWERCASE_CPPFILES_KEY), lowerCaseFiles);
+    s->setValue(QLatin1String(headerPragmaOnceC), headerPragmaOnce);
     s->setValue(QLatin1String(licenseTemplatePathKeyC), licenseTemplatePath);
     s->endGroup();
 }
@@ -106,6 +103,7 @@ void CppFileSettings::fromSettings(QSettings *s)
             .toStringList();
     const bool lowerCaseDefault = Constants::lowerCaseFilesDefault;
     lowerCaseFiles = s->value(QLatin1String(Constants::LOWERCASE_CPPFILES_KEY), QVariant(lowerCaseDefault)).toBool();
+    headerPragmaOnce = s->value(headerPragmaOnceC, headerPragmaOnce).toBool();
     licenseTemplatePath = s->value(QLatin1String(licenseTemplatePathKeyC), QString()).toString();
     s->endGroup();
 }
@@ -127,6 +125,7 @@ bool CppFileSettings::applySuffixesToMimeDB()
 bool CppFileSettings::equals(const CppFileSettings &rhs) const
 {
     return lowerCaseFiles == rhs.lowerCaseFiles
+           && headerPragmaOnce == rhs.headerPragmaOnce
            && headerPrefixes == rhs.headerPrefixes
            && sourcePrefixes == rhs.sourcePrefixes
            && headerSuffix == rhs.headerSuffix
@@ -303,6 +302,7 @@ CppFileSettings CppFileSettingsWidget::settings() const
 {
     CppFileSettings rc;
     rc.lowerCaseFiles = m_ui->lowerCaseFileNamesCheckBox->isChecked();
+    rc.headerPragmaOnce = m_ui->headerPragmaOnceCheckBox->isChecked();
     rc.headerPrefixes = trimmedPaths(m_ui->headerPrefixesEdit->text());
     rc.sourcePrefixes = trimmedPaths(m_ui->sourcePrefixesEdit->text());
     rc.headerSuffix = m_ui->headerSuffixComboBox->currentText();
@@ -323,6 +323,7 @@ void CppFileSettingsWidget::setSettings(const CppFileSettings &s)
 {
     const QChar comma = QLatin1Char(',');
     m_ui->lowerCaseFileNamesCheckBox->setChecked(s.lowerCaseFiles);
+    m_ui->headerPragmaOnceCheckBox->setChecked(s.headerPragmaOnce);
     m_ui->headerPrefixesEdit->setText(s.headerPrefixes.join(comma));
     m_ui->sourcePrefixesEdit->setText(s.sourcePrefixes.join(comma));
     setComboText(m_ui->headerSuffixComboBox, s.headerSuffix);