QGIS API Documentation 3.39.0-Master (93ce9bf5c90)
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qgsreadwritecontext.cpp
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1/***************************************************************************
2 qgsreadwritecontext.cpp
3 ---------------------
4 begin : May 2017
5 copyright : (C) 2017 by Martin Dobias
6 email : wonder dot sk at gmail dot com
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#include "qgsreadwritecontext.h"
16
18class DefaultTranslator : public QgsProjectTranslator
19{
20 // QgsProjectTranslator interface
21 public:
22 QString translate( const QString &context, const QString &sourceText, const char *disambiguation, int n ) const override
23 {
24 Q_UNUSED( context )
25 Q_UNUSED( disambiguation )
26 Q_UNUSED( n )
27 return sourceText;
28 }
29};
30
32
33Q_GLOBAL_STATIC( DefaultTranslator, sDefaultTranslator )
34
36 : mProjectTranslator( sDefaultTranslator() )
37{
38
39}
40
42{
43 // be sure that categories have been emptied
44 Q_ASSERT( mCategories.isEmpty() );
45}
46
48{
49 return mPathResolver;
50}
51
53{
54 mPathResolver = resolver;
55}
56
57void QgsReadWriteContext::pushMessage( const QString &message, Qgis::MessageLevel level ) const
58{
59 mMessages.append( ReadWriteMessage( message, level, mCategories ) );
60}
61
62QgsReadWriteContextCategoryPopper QgsReadWriteContext::enterCategory( const QString &category, const QString &details ) const
63{
64 QString message = category;
65 if ( !details.isEmpty() )
66 message.append( QStringLiteral( " :: %1" ).arg( details ) );
67 mCategories.push_back( message );
69}
70
71void QgsReadWriteContext::leaveCategory() const
72{
73 if ( !mCategories.isEmpty() )
74 mCategories.pop_back();
75}
76
78{
79 return mCoordinateTransformContext;
80}
81
83{
84 mCoordinateTransformContext = transformContext;
85}
86
88{
89 mProjectTranslator = projectTranslator;
90}
91
92
93QList<QgsReadWriteContext::ReadWriteMessage > QgsReadWriteContext::takeMessages()
94{
95 QList<QgsReadWriteContext::ReadWriteMessage > messages = mMessages;
96 mMessages.clear();
97 return messages;
98}
MessageLevel
Level for messages This will be used both for message log and message bar in application.
Definition qgis.h:154
Contains information about the context in which a coordinate transform is executed.
Resolves relative paths into absolute paths and vice versa.
An interface for objects which can translate project strings.
virtual QString translate(const QString &context, const QString &sourceText, const char *disambiguation=nullptr, int n=-1) const =0
Translates a string using the Qt QTranslator mechanism.
Allows entering a context category and takes care of leaving this category on deletion of the class.
The class is used as a container of context for various read/write operations on other objects.
MAYBE_UNUSED NODISCARD QgsReadWriteContextCategoryPopper enterCategory(const QString &category, const QString &details=QString()) const
Push a category to the stack.
const QgsProjectTranslator * projectTranslator() const
Returns the project translator.
void setTransformContext(const QgsCoordinateTransformContext &transformContext)
Sets data coordinate transform context to transformContext.
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
QList< QgsReadWriteContext::ReadWriteMessage > takeMessages()
Returns the stored messages and remove them.
friend class QgsReadWriteContextCategoryPopper
void pushMessage(const QString &message, Qgis::MessageLevel level=Qgis::MessageLevel::Warning) const
Append a message to the context.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
void setProjectTranslator(QgsProjectTranslator *projectTranslator)
Sets the project translator.
void setPathResolver(const QgsPathResolver &resolver)
Sets up path resolver for conversion between relative and absolute paths.
Q_GLOBAL_STATIC(QReadWriteLock, sDefinitionCacheLock)
Struct for QgsReadWriteContext error or warning messages.