QGIS API Documentation 3.29.0-Master (8c80f25a4f)
qgsencodingfiledialog.cpp
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1/***************************************************************************
2 qgsencodingfiledialog.cpp - File dialog which queries the encoding type
3 --------------------------------------
4 Date : 16-Feb-2005
5 Copyright : (C) 2005 by Marco Hugentobler
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
17#include "qgsproject.h"
18#include "qgslogger.h"
20#include "qgssettings.h"
21
22#include <QComboBox>
23#include <QPushButton>
24#include <QLabel>
25#include <QLayout>
26#include <QTextCodec>
27#include <QDialogButtonBox>
28
30 const QString &caption, const QString &directory,
31 const QString &filter, const QString &encoding )
32 : QFileDialog( parent, caption, directory, filter )
33{
34 mCancelAll = false;
35 mCancelAllButton = nullptr;
36 mEncodingComboBox = new QComboBox( this );
37 QLabel *l = new QLabel( tr( "Encoding:" ), this );
38
39 setOption( QFileDialog::DontUseNativeDialog );
40 layout()->addWidget( l );
41 layout()->addWidget( mEncodingComboBox );
42
43 mEncodingComboBox->addItems( QgsVectorDataProvider::availableEncodings() );
44
45 // Use default encoding if none supplied
46 QString enc = encoding;
47 if ( encoding.isEmpty() )
48 {
49 const QgsSettings settings;
50 enc = settings.value( QStringLiteral( "UI/encoding" ), "System" ).toString();
51 }
52
53 // The specified decoding is added if not existing already, and then set current.
54 // This should select it.
55 int encindex = mEncodingComboBox->findText( enc );
56 if ( encindex < 0 )
57 {
58 mEncodingComboBox->insertItem( 0, enc );
59 encindex = 0;
60 }
61 mEncodingComboBox->setCurrentIndex( encindex );
62
63 // if this dialog is being invoked from QgisApp::findFiles_(), then we
64 // need to force selection of the first filter since that corresponds to
65 // the file name we're looking for; even if we're not here from
66 // findFiles_(), it won't hurt to force selection of the first file filter
67 selectNameFilter( nameFilters().at( 0 ) );
68
69 // Connect our slot to get a signal when the user is done with the file dialog
70 connect( this, &QDialog::accepted, this, &QgsEncodingFileDialog::saveUsedEncoding );
71}
72
74{
75 return mEncodingComboBox->currentText();
76}
77
79{
80 QgsSettings settings;
81 settings.setValue( QStringLiteral( "UI/encoding" ), encoding() );
82 QgsDebugMsg( QStringLiteral( "Set encoding %1 as default." ).arg( encoding() ) );
83}
84
86{
87 if ( ! mCancelAllButton )
88 {
89 mCancelAllButton = new QPushButton( tr( "Cancel &All" ), nullptr );
90 layout()->addWidget( mCancelAllButton ); // Ownership transferred, no need to delete later on
91 connect( mCancelAllButton, &QAbstractButton::clicked, this, &QgsEncodingFileDialog::pbnCancelAll_clicked );
92 }
93}
94
96{
97 return mCancelAll;
98}
99
101{
102 mCancelAll = true;
103 // Now, continue as the user clicked the cancel button
104 reject();
105}
106
107QgsEncodingSelectionDialog::QgsEncodingSelectionDialog( QWidget *parent, const QString &caption, const QString &encoding, Qt::WindowFlags flags )
108 : QDialog( parent, flags )
109{
110 QString c = caption;
111 if ( c.isEmpty() )
112 c = tr( "Encoding" );
113
114 setWindowTitle( tr( "Select Encoding" ) );
115
116 QVBoxLayout *layout = new QVBoxLayout();
117 layout->setContentsMargins( 6, 6, 6, 6 );
118
119 mEncodingComboBox = new QComboBox( this );
120 QLabel *l = new QLabel( c, this );
121
122 QHBoxLayout *hLayout = new QHBoxLayout();
123 hLayout->addWidget( l );
124 hLayout->addWidget( mEncodingComboBox, 1 );
125 layout->addLayout( hLayout );
126
127 QDialogButtonBox *buttonBox = new QDialogButtonBox( QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
128 Qt::Horizontal, this );
129 buttonBox->button( QDialogButtonBox::Ok )->setDefault( true );
130 connect( buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject );
131 connect( buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept );
132 layout->addWidget( buttonBox );
133 setLayout( layout );
134
135 mEncodingComboBox->addItem( tr( "System" ) );
136 mEncodingComboBox->addItems( QgsVectorDataProvider::availableEncodings() );
137
138 // Use default encoding if none supplied
139 QString enc = encoding;
140 if ( encoding.isEmpty() )
141 {
142 const QgsSettings settings;
143 enc = settings.value( QStringLiteral( "UI/encoding" ), "System" ).toString();
144 }
145
146 setEncoding( enc );
147}
148
150{
151 return mEncodingComboBox->currentText();
152}
153
154void QgsEncodingSelectionDialog::setEncoding( const QString &encoding )
155{
156 // The specified decoding is added if not existing already, and then set current.
157 // This should select it.
158
159 int encindex = mEncodingComboBox->findText( encoding );
160 if ( encindex < 0 )
161 {
162 mEncodingComboBox->insertItem( 0, encoding );
163 encindex = 0;
164 }
165 mEncodingComboBox->setCurrentIndex( encindex );
166}
bool cancelAll()
Returns true if the user clicked 'Cancel All'.
QString encoding() const
Returns a string describing the chosen encoding.
void addCancelAll()
Adds a 'Cancel All' button for the user to click.
QgsEncodingFileDialog(QWidget *parent=nullptr, const QString &caption=QString(), const QString &directory=QString(), const QString &filter=QString(), const QString &encoding=QString())
Constructor for QgsEncodingFileDialog.
QString encoding() const
Returns the encoding selected within the dialog.
QgsEncodingSelectionDialog(QWidget *parent=nullptr, const QString &caption=QString(), const QString &encoding=QString(), Qt::WindowFlags flags=Qt::WindowFlags())
Constructor for QgsEncodingSelectionDialog.
void setEncoding(const QString &encoding)
Sets the encoding selected within the dialog.
This class is a composition of two QSettings instances:
Definition: qgssettings.h:62
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
void setValue(const QString &key, const QVariant &value, QgsSettings::Section section=QgsSettings::NoSection)
Sets the value of setting key to value.
static QStringList availableEncodings()
Returns a list of available encodings.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
#define QgsDebugMsg(str)
Definition: qgslogger.h:38