sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-02-25 00:58:06 -05:00
Code Issues Packages Projects Releases Wiki Activity

[FEATURE] Expression variables for project CRS

Browse Source 
Adds @project_crs and @project_crs_definition variables
for retrieving the current project CRS
This commit is contained in:
Nyall Dawson 2016-11-22 10:08:14 +10:00
parent 271e67e37b
commit 188033a6af
2 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/core/qgsexpression.cpp
View File

@ -5712,6 +5712,8 @@ void QgsExpression::initVariableHelp()
gVariableHelpTexts.insert( QStringLiteral( "project_path" ), QCoreApplication::translate( "variable_help", "Full path (including file name) of current project." ) );
gVariableHelpTexts.insert( QStringLiteral( "project_folder" ), QCoreApplication::translate( "variable_help", "Folder for current project." ) );
gVariableHelpTexts.insert( QStringLiteral( "project_filename" ), QCoreApplication::translate( "variable_help", "Filename of current project." ) );
gVariableHelpTexts.insert( QStringLiteral( "project_crs" ), QCoreApplication::translate( "variable_help", "Coordinate reference system of project (eg 'EPSG:4326')." ) );
gVariableHelpTexts.insert( QStringLiteral( "project_crs_definition" ), QCoreApplication::translate( "variable_help", "Coordinate reference system of project (full definition)." ) );
//layer variables
gVariableHelpTexts.insert( QStringLiteral( "layer_name" ), QCoreApplication::translate( "variable_help", "Name of current layer." ) );

3
src/core/qgsexpressioncontext.cpp
View File

@ -644,6 +644,9 @@ QgsExpressionContextScope* QgsExpressionContextUtils::projectScope()
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_path" ), project->fileInfo().filePath(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_folder" ), project->fileInfo().dir().path(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_filename" ), project->fileInfo().fileName(), true ) );
QgsCoordinateReferenceSystem projectCrs = project->crs();
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_crs" ), projectCrs.authid(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_crs_definition" ), projectCrs.toProj4(), true ) );
scope->addFunction( QStringLiteral( "project_color" ), new GetNamedProjectColor() );
return scope;