Difference between revisions of "Documentation/Nightly/Developers/Tutorials/MigrationGuide/ObsoleteCodeRemoval"

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This section documents suggested code changes after removing support for a particular features. Each category has a short description, code snippets, a suggested upgrade path, and references to relevant commits.
 
This section documents suggested code changes after removing support for a particular features. Each category has a short description, code snippets, a suggested upgrade path, and references to relevant commits.
 +
 +
===Qt >= 5.6.0: cpp: QDesignerCustomWidgetInterface header include===
 +
 +
Before:
 +
 +
  #include <QtGlobal>
 +
  #if(QT_VERSION < QT_VERSION_CHECKS(5, 6, 0))
 +
  // Obsolete Qt4 code
 +
  #include <QDesignerCustomWidgetInterface>
 +
  #else
 +
  // Qt5 code
 +
  #include <QtUiPlugin/QDesignerCustomWidgetInterface>
 +
  #endif
 +
 +
After:
 +
 +
  #include <QtUiPlugin/QDesignerCustomWidgetInterface>
 +
 +
===Qt >= 5.0.0: cpp: Q_PLUGIN_METADATA macro===
 +
 +
Before:
 +
 +
  class Q_SLICER_MODULE_SEGMENTATIONS_WIDGETS_PLUGINS_EXPORT qSlicerSegmentationsModuleWidgetsAbstractPlugin
 +
      : public QDesignerCustomWidgetInterface
 +
  {
 +
  #if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
 +
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
 +
  #endif
 +
    Q_INTERFACES(QDesignerCustomWidgetInterface);
 +
  }
 +
 +
After:
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 +
<pre>
 +
  class Q_SLICER_MODULE_SEGMENTATIONS_WIDGETS_PLUGINS_EXPORT qSlicerSegmentationsModuleWidgetsAbstractPlugin
 +
      : public QDesignerCustomWidgetInterface
 +
  {
 +
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
 +
    Q_INTERFACES(QDesignerCustomWidgetInterface);
 +
  }
 +
</pre>
 +
 +
 +
===Qt >= 5.0.0: Python: Simpler use of setSectionResizeMode===
 +
 +
This migration guide points becomes obsolete:
 +
[[Documentation/Nightly/Developers/Tutorials/MigrationGuide#Qt5:_Fix_error:_.E2.80.98class_QHeaderView.E2.80.99_has_no_member_named_.E2.80.98setResizeMode.E2.80.99]]
 +
 +
Before:
 +
 +
  _setSectionResizeMode(self.horizontalHeader(), 0, qt.QHeaderView.Stretch)
 +
  def _setSectionResizeMode(header, *args, **kwargs):
 +
    if version.parse(qt.Qt.qVersion()) < version.parse("5.0.0"):
 +
      header.setResizeMode(*args, **kwargs)
 +
    else:
 +
      header.setSectionResizeMode(*args, **kwargs)
 +
 +
After:
 +
 +
  self.horizontalHeader(0, qt.QHeaderView.Stretch)

Revision as of 20:35, 8 March 2019

Home < Documentation < Nightly < Developers < Tutorials < MigrationGuide < ObsoleteCodeRemoval

Obsolete Code Removal

This section documents suggested code changes after removing support for a particular features. Each category has a short description, code snippets, a suggested upgrade path, and references to relevant commits.

Qt >= 5.6.0: cpp: QDesignerCustomWidgetInterface header include

Before: 

 #include <QtGlobal>
 #if(QT_VERSION < QT_VERSION_CHECKS(5, 6, 0))
 // Obsolete Qt4 code
 #include <QDesignerCustomWidgetInterface>
 #else
 // Qt5 code
 #include <QtUiPlugin/QDesignerCustomWidgetInterface>
 #endif

After: 

 #include <QtUiPlugin/QDesignerCustomWidgetInterface>

Qt >= 5.0.0: cpp: Q_PLUGIN_METADATA macro

Before: 

 class Q_SLICER_MODULE_SEGMENTATIONS_WIDGETS_PLUGINS_EXPORT qSlicerSegmentationsModuleWidgetsAbstractPlugin
     : public QDesignerCustomWidgetInterface
 {
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
   Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
 #endif
   Q_INTERFACES(QDesignerCustomWidgetInterface);
 }

After: 

  class Q_SLICER_MODULE_SEGMENTATIONS_WIDGETS_PLUGINS_EXPORT qSlicerSegmentationsModuleWidgetsAbstractPlugin
      : public QDesignerCustomWidgetInterface
  {
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
    Q_INTERFACES(QDesignerCustomWidgetInterface);
  }


Qt >= 5.0.0: Python: Simpler use of setSectionResizeMode

This migration guide points becomes obsolete: Documentation/Nightly/Developers/Tutorials/MigrationGuide#Qt5:_Fix_error:_.E2.80.98class_QHeaderView.E2.80.99_has_no_member_named_.E2.80.98setResizeMode.E2.80.99

Before: 

 _setSectionResizeMode(self.horizontalHeader(), 0, qt.QHeaderView.Stretch)
 def _setSectionResizeMode(header, *args, **kwargs):
   if version.parse(qt.Qt.qVersion()) < version.parse("5.0.0"):
     header.setResizeMode(*args, **kwargs)
   else:
     header.setSectionResizeMode(*args, **kwargs)

After: 

 self.horizontalHeader(0, qt.QHeaderView.Stretch)
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