QColor QgsColorDialog::getLiveColor( const QColor &initialColor, QObject *updateObject, const char *updateSlot, QWidget *parent, const QString &title, const bool allowAlpha )
{
QColor returnColor( initialColor );
QSettings settings;
//using native color dialogs?
bool useNative = settings.value( QStringLiteral( "/qgis/native_color_dialogs" ), false ).toBool();
if ( useNative )
{
QColorDialog* liveDialog = new QColorDialog( initialColor, parent );
liveDialog->setWindowTitle( title.isEmpty() ? tr( "Select Color" ) : title );
liveDialog->setOptions( allowAlpha ? QColorDialog::ShowAlphaChannel : ( QColorDialog::ColorDialogOption )0 );
connect( liveDialog, SIGNAL( currentColorChanged( const QColor& ) ),
updateObject, updateSlot );
if ( liveDialog->exec() )
{
returnColor = liveDialog->currentColor();
}
delete liveDialog;
}
else
{
QgsColorDialog* liveDialog = new QgsColorDialog( parent, 0, initialColor );
liveDialog->setWindowTitle( title.isEmpty() ? tr( "Select Color" ) : title );
if ( !allowAlpha )
{
liveDialog->setAllowAlpha( false );
}
connect( liveDialog, SIGNAL( currentColorChanged( const QColor& ) ),
updateObject, updateSlot );
if ( liveDialog->exec() )
{
returnColor = liveDialog->color();
}
delete liveDialog;
}
return returnColor;
}
QColor QgsColorDialog::getLiveColor( const QColor& initialColor, QObject* updateObject, const char* updateSlot,
QWidget* parent,
const QString& title,
const QColorDialog::ColorDialogOptions& options )
{
QColor returnColor( initialColor );
QColorDialog* liveDialog = new QColorDialog( initialColor, parent );
liveDialog->setWindowTitle( title.isEmpty() ? tr( "Select Color" ) : title );
liveDialog->setOptions( options );
connect( liveDialog, SIGNAL( currentColorChanged( const QColor& ) ),
updateObject, updateSlot );
if ( liveDialog->exec() )
{
returnColor = liveDialog->currentColor();
}
delete liveDialog;
liveDialog = nullptr;
return returnColor;
}
QColor QgsColorDialogV2::getLiveColor( const QColor &initialColor, QObject *updateObject, const char *updateSlot, QWidget *parent, const QString &title, const bool allowAlpha )
{
QColor returnColor( initialColor );
QgsColorDialogV2* liveDialog = new QgsColorDialogV2( parent, 0, initialColor );
liveDialog->setWindowTitle( title.isEmpty() ? tr( "Select Color" ) : title );
if ( !allowAlpha )
{
liveDialog->setAllowAlpha( false );
}
connect( liveDialog, SIGNAL( currentColorChanged( const QColor& ) ),
updateObject, updateSlot );
if ( liveDialog->exec() )
{
returnColor = liveDialog->color();
}
delete liveDialog;
liveDialog = nullptr;
return returnColor;
}
QColor GeneralConfig::getColorFromString(QString colorString) {
/* -converts a color defined in a string to a 'QColor' object, using regexp validation, and returnes it */
if ( colorString.isEmpty() ) return QColor(); //return if no color is specified
//cleen up the string
colorString = colorString.simplified();
colorString = colorString.trimmed();
QColor returnColor(0, 0, 0); //dummy color to be returned
int p = 0; //used for regexp validator
//regexps to check color value
QRegularExpressionValidator isRGB( QRegularExpression("\\d{1,3} \\d{1,3} \\d{1,3}") ); //check if RGB
QRegularExpressionValidator isRGBA( QRegularExpression("\\d{1,3} \\d{1,3} \\d{1,3} \\d{1,3}") ); //check if RGBA
QRegularExpressionValidator isHEX( QRegularExpression("^#([0-9A-Fa-f]{3}|[0-9A-Fa-f]{6}|[0-9A-Fa-f]{8}|[0-9A-Fa-f]{9}|[0-9A-Fa-f]{12})$") );//check if HEX code
QRegularExpressionValidator isName( QRegularExpression("\\w+") ); //check if color name
//check color value
if ( isRGB.validate(colorString, p) == 2) {
QStringList rgb = colorString.split( QRegularExpression("\\s") );
returnColor.setRgb( rgb.at(0).toInt(), rgb.at(1).toInt(), rgb.at(2).toInt() );
}
else if ( isRGBA.validate(colorString, p) == 2) {
QStringList rgb = colorString.split( QRegularExpression("\\s") );
returnColor.setRgb( rgb.at(0).toInt(), rgb.at(1).toInt(), rgb.at(2).toInt(), rgb.at(3).toInt() );
}
else if ( isHEX.validate(colorString, p) == 2) {
returnColor.setNamedColor(colorString);
}
else if ( isName.validate(colorString, p) ) {
returnColor.setNamedColor( colorString.toLower().remove( QRegularExpression("\\s+") ) );
}
//check color is valid and return
if ( returnColor.isValid() ) return returnColor;
else return QColor();
}
