Fixed some spelling errors (allow to, allows to)

src/laybasic/laybasic/gsiDeclLayDialogs.cc

@@ -435,7 +435,7 @@ Class<BrowserSource_Stub> decl_BrowserSourceStub ("lay", "BrowserSource",
     "@args url\n"
     "\n"
     "If this method returns an empty string, the browser will not be set to \n"
-    "a new location. This allows to implement any functionality behind such links.\n"
+    "a new location. This allows implementing any functionality behind such links.\n"
     "If the method returns a string, the content of this string is displayed in the HTML\n"
     "browser page."
   ),

src/laybasic/laybasic/gsiDeclLayLayers.cc

@@ -1266,7 +1266,7 @@ Class<lay::LayerPropertiesNode> decl_LayerPropertiesNode (
   method_ext ("add_child", &add_child0,
     "@brief Add a child entry\n"
     "@return A reference to the node created\n"
-    "This method allows to build a layer properties tree by adding children to node objects. "
+    "This method allows building a layer properties tree by adding children to node objects. "
     "It returns a reference to the node object created which is a freshly initialized one.\n"
     "\n"
     "The parameterless version of this method was introduced in version 0.25."
@@ -1275,7 +1275,7 @@ Class<lay::LayerPropertiesNode> decl_LayerPropertiesNode (
     "@brief Add a child entry\n"
     "@args child\n"
     "@return A reference to the node created\n"
-    "This method allows to build a layer properties tree by adding children to node objects. "
+    "This method allows building a layer properties tree by adding children to node objects. "
     "It returns a reference to the node object created.\n"
     "\n"
     "This method was introduced in version 0.22."

src/laybasic/laybasic/gsiDeclLayLayoutView.cc

@@ -437,7 +437,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "@param add_default If true, default layers will be added for each other layer in the layout\n"
     "\n"
     "Load the layer properties from the file given in \"fn\".\n"
-    "This version allows to specify whether defaults should be used for all other layers by "
+    "This version allows one to specify whether defaults should be used for all other layers by "
     "setting \"add_default\" to true.\n"
     "\n"
     "This variant has been added on version 0.21."
@@ -450,7 +450,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "@param add_default If true, default layers will be added for each other layer in the layout\n"
     "\n"
     "Load the layer properties from the file given in \"fn\".\n"
-    "This version allows to specify whether defaults should be used for all other layers by "
+    "This version allows one to specify whether defaults should be used for all other layers by "
     "setting \"add_default\" to true. It can be used to load the layer properties for a specific "
     "cellview by setting \"cv_index\" to the index for which the layer properties file should be applied. "
     "All present definitions for this layout will be removed before the properties file is loaded. \"cv_index\" can "
@@ -465,7 +465,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "\n"
     "@param level The minimum level above which to display something\n"
     "\n"
-    "This methods allows to set the minimum hierarchy level above which to display geometries."
+    "This methods allows setting the minimum hierarchy level above which to display geometries."
     "This method may cause a redraw if required."
   ) +
   gsi::method ("min_hier_levels", &lay::LayoutView::get_min_hier_levels,
@@ -478,7 +478,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "\n"
     "@param level The maximum level below which to display something\n"
     "\n"
-    "This methods allows to set the maximum hierarchy below which to display geometries."
+    "This methods allows setting the maximum hierarchy below which to display geometries."
     "This method may cause a redraw if required."
   ) +
   gsi::method ("max_hier_levels", &lay::LayoutView::get_max_hier_levels,
@@ -528,7 +528,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "@brief Create a new, empty layout and associate it with the given technology\n"
     "\n"
     "The add_cellview parameter controls whether to create a new cellview (true)\n"
-    "or clear all cellviews before (false). This variant also allows to control whether the layer properties are\n"
+    "or clear all cellviews before (false). This variant also allows one to control whether the layer properties are\n"
     "initialized (init_layers = true) or not (init_layers = false).\n"
     "\n"
     "@return The index of the cellview created.\n"
@@ -572,7 +572,7 @@ Class<lay::LayoutView> decl_LayoutView (QT_EXTERNAL_BASE (QWidget) "lay", "Layou
     "The technology to use for that layout can be specified as well with the 'tech' parameter. Depending "
     "on the definition of the technology, layer properties may be loaded for example.\n"
     "The technology string can be empty for the default technology.\n"
-    "This variant also allows to control whether the layer properties are\n"
+    "This variant also allows one to control whether the layer properties are\n"
     "initialized (init_layers = true) or not (init_layers = false).\n"
     "\n"
     "Note: once a layout is passed to the view with show_layout, it is owned by the view and must not be "

src/laybasic/laybasic/gsiDeclLayPlugin.cc

@@ -51,7 +51,7 @@ namespace gsi
 //  TODO: these static variables are a bad hack!
 //  However it's not easy to pass parameters to a C++ classes constructor in Ruby without
 //  compromising the capability to derive from that class (at least I have not learned how
-//  to create a "new" in the super class *and* allow to "new" the derived class). Anyway,
+//  to create a "new" in the super class *and* allow a "new" of the derived class). Anyway,
 //  since PluginBase object are only allowed to be created inside the create_plugin method
 //  of the factory, this hack is a quick but dirty workaround.
 static bool s_in_create_plugin = false;
@@ -457,7 +457,7 @@ Class<gsi::PluginFactoryBase> decl_PluginFactory ("lay", "PluginFactory",
     "@param title The title string which is supposed to appear in the tool bar and menu related to this plugin.\n"
     "@param icon The path to the icon that appears in the tool bar and menu related to this plugin.\n" 
     "\n"
-    "This version also allows to register an icon for the tool bar.\n"
+    "This version also allows registering an icon for the tool bar.\n"
     "\n"
     "Registration of the plugin factory makes the object known to the system. Registration requires that the menu items have been set "
     "already. Hence it is recommended to put the registration at the end of the initialization method of the factory class.\n"

src/laybasic/laybasic/gtf.cc

@@ -60,7 +60,7 @@
 #include <map>
 
 // --------------------------------------------------------------
-//  A helper class that allows to put a QImage into a tl::Variant
+//  A helper class that allows putting a QImage into a tl::Variant
 
 namespace tl
 {

src/laybasic/laybasic/layAbstractMenu.h

@@ -107,8 +107,8 @@ private:
  *  @brief A QAction proxy 
  *
  *  This class is provided to be better suited to automation because it provides the corresponding interfaces
- *  and allows to implement the "trigger" event by reimplementation of the slot (after being connected).
- *  In addition, by acting as a proxy, it allows to reference a QAction object created by Qt itself (i.e.
+ *  and allows implementing the "trigger" event by reimplementation of the slot (after being connected).
+ *  In addition, by acting as a proxy, it can act as a reference to a QAction object created by Qt itself (i.e.
  *  within a QMenu).
  *  To reimplement the "triggered" method, derive a class from Action and reimplement "triggered". Then
  *  pass a reference to this object to "insert_item" of AbstractMenu and store away the derived object.

src/laybasic/laybasic/layBrowser.h

@@ -63,7 +63,7 @@ public:
    *  This method can be overloaded by derived classes to provide actions
    *  for activation of the dialog, like setup of the controls etc.
    *  This handler is called immediately before the dialog becomes visible.
-   *  The 'active' method allows to query if the dialog is active.
+   *  The 'active' method returns a value indicating whether the dialog is active.
    */
   virtual void activated () 
   {

src/laybasic/laybasic/layBrowserPanel.h

@@ -190,7 +190,7 @@ public:
    *  @brief Get the HTML code for a given "int" URL.
    *
    *  If this method returns an empty string, the browser will not be set to 
-   *  a new location. This allows to implement any functionality behind such links.
+   *  a new location. This allows implementing any functionality behind such links.
    */
   virtual std::string get (const std::string &url);
 
@@ -250,7 +250,7 @@ private:
 };
 
 /**
- *  @brief A specialisation of QTextBrowser that allows to load a specific resource through BrowserPanel
+ *  @brief A specialisation of QTextBrowser that allows loading a specific resource through BrowserPanel
  */
 class LAYBASIC_PUBLIC BrowserTextWidget
   : public QTextBrowser
@@ -274,7 +274,7 @@ private:
 };
 
 /**
- *  @brief A specialisation of QWidget around a TextBrowser that allows to load a specific resource
+ *  @brief A specialisation of QWidget around a TextBrowser that allows loading a specific resource
  */
 class LAYBASIC_PUBLIC BrowserPanel
   : public QWidget

src/laybasic/laybasic/layColorPalette.h

@@ -146,7 +146,7 @@ public:
    *  This method will throw an exception if the string does not have a valid format
    *  like the one returned by the to_string method.
    *
-   *  If simple is true, this method allows to set a palette without luminous colors
+   *  If simple is true, this method allows setting a palette without luminous colors
    *  and without colors at all.
    */
   void from_string (const std::string &s, bool simple = false);

src/laybasic/laybasic/layFileDialog.h

@@ -39,7 +39,7 @@ namespace lay
  *  @brief Generic file dialog 
  *
  *  This dialog is provided to encapsulate the Qt file dialog.
- *  This implementation allows to stay within a directory even
+ *  This implementation allows staying within a directory even
  *  if the static convenience functions are used. Under Windows,
  *  we need to use the static functions since these use the 
  *  system dialogs.

src/laybasic/laybasic/layHierarchyControlPanel.h

@@ -88,7 +88,7 @@ protected:
 /**
  *  @brief The hierarchy control panel 
  *
- *  The hierarchy control panel allows to change the cell shown
+ *  The hierarchy control panel allows changing the cell shown, to
  *  browse the hierarchy and disable/enable cells
  *
  *  The class communicates with a Layout interface for
@@ -186,7 +186,7 @@ public:
    *  @brief Update the contents if necessary
    *  
    *  Update the cell trees according to the hierarchy found in 
-   *  the layouts. This version allows to give an hint what cellview has changed.
+   *  the layouts. This version includes a hint which cellview has changed.
    */
   void do_update_content (int cv_index);
 

src/laybasic/laybasic/layLayerProperties.h

@@ -1446,7 +1446,7 @@ struct LAYBASIC_PUBLIC CompareLayerIteratorBottomUp
  *  @brief Flat, non-const layer iterator
  *
  *  This iterator provides a flat view for the layers in the layer tree
- *  and allows to change the item pointed to.
+ *  and allows changing the item pointed to.
  */
 class LAYBASIC_PUBLIC LayerPropertiesIterator
   : public LayerPropertiesConstIterator

src/laybasic/laybasic/layLayoutView.cc

@@ -2691,7 +2691,7 @@ LayoutView::save_screenshot (const std::string &fn)
 
   QImageWriter writer (tl::to_qstring (fn), QByteArray ("PNG"));
 
-  //  Unfortunately the PNG writer does not allow to write long strings.
+  //  Unfortunately the PNG writer does not allow writing of long strings.
   //  We separate the description into a set of keys:
 
   for (unsigned int i = 0; i < cellviews (); ++i) {
@@ -2748,7 +2748,7 @@ LayoutView::save_image (const std::string &fn, unsigned int width, unsigned int
 
   QImageWriter writer (tl::to_qstring (fn), QByteArray ("PNG"));
 
-  //  Unfortunately the PNG writer does not allow to write long strings.
+  //  Unfortunately the PNG writer does not allow writing of long strings.
   //  We separate the description into a set of keys:
 
   for (unsigned int i = 0; i < cellviews (); ++i) {
@@ -2780,7 +2780,7 @@ LayoutView::save_image_with_options (const std::string &fn,
 
   QImageWriter writer (tl::to_qstring (fn), QByteArray ("PNG"));
 
-  //  Unfortunately the PNG writer does not allow to write long strings.
+  //  Unfortunately the PNG writer does not allow writing of long strings.
   //  We separate the description into a set of keys:
 
   for (unsigned int i = 0; i < cellviews (); ++i) {

src/laybasic/laybasic/layLayoutView.h

@@ -295,7 +295,7 @@ public:
   /**
    *  @brief Fill the layer properties for a new layer
    *
-   *  The layer's source must be set already to allow to compute the initial color.
+   *  The layer's source must be set already to allow computing of the initial color.
    *  It is assumed that the layer is appended at the end of the layer list. This
    *  is important to set the dither pattern index accordingly.
    */
@@ -798,7 +798,7 @@ public:
    *
    *  @param fn The file to load
    *
-   *  This version allows to specify whether defaults should be used for all other layers by 
+   *  This version allows one to specify whether defaults should be used for all other layers by 
    *  setting add_default to true
    */
   void load_layer_props (const std::string &fn, bool add_default);
@@ -808,7 +808,7 @@ public:
    *
    *  @param fn The file to load
    *
-   *  This version allows to specify whether defaults should be used for all other layers by 
+   *  This version allows one to specify whether defaults should be used for all other layers by 
    *  setting add_default to true. In addition, this version will apply the .lyp definitions
    *  to a specific cellview after removing all definitions for this one. If cv_index is set
    *  to -1, the .lyp file will be applied to each cellview. In any case, the cv index specs
@@ -1366,7 +1366,7 @@ public:
    *  @brief Create a new, empty layout using the specified technology
    *
    *  The add_cellview param controls whether to create a new cellview
-   *  or clear all cellviews before. This version allows to specify whether layer properties shall be created.
+   *  or clear all cellviews before. This version allows one to specify whether layer properties shall be created.
    *
    *  @return The index of the cellview created.
    */
@@ -1378,7 +1378,7 @@ public:
    *  The add_cellview param controls whether to add the layout as a new cellview
    *  or clear all cellviews before.
    *
-   *  The "initialize_layers" parameter allows to specify whether the layer properties shall be initialized.
+   *  The "initialize_layers" parameter allows one to specify whether the layer properties shall be initialized.
    *
    *  @return The index of the cellview loaded.
    */

src/laybasic/laybasic/layParsedLayerSource.h

@@ -542,7 +542,7 @@ public:
    *  selection. The set should be empty on enter. Otherwise the results are
    *  not defined.
    *  The return value is true if the ids are to be interpretated inversely (every properties id
-   *  matches that is not in the set). This allows to optimize the computation of the set.
+   *  matches that is not in the set). This allows optimizing the computation of the set.
    */
   bool matching (const db::PropertiesRepository &rep, std::set<db::properties_id_type> &matching) const;
 

src/laybasic/laybasic/layPlugin.cc

@@ -120,7 +120,7 @@ PluginDeclaration::init_menu ()
 
   lay::AbstractMenu &menu = *lay::AbstractMenuProvider::instance ()->menu ();
 
-  //  pre-initialize to allow to multiple init_menu calls
+  //  pre-initialize to allow multiple init_menu calls
   m_editable_mode_action = lay::Action ();
   m_mouse_mode_action = lay::Action ();
   m_menu_actions.clear ();

src/laybasic/laybasic/layStream.h

@@ -164,7 +164,7 @@ private:
   std::string m_format_name;
   db::StreamFormatDeclaration *mp_stream_fmt;
 
-  //  don't allow to override - use a special configuration page for that purpose.
+  //  don't allow overrides - use a special configuration page for that purpose.
   virtual ConfigPage *config_page (QWidget * /*parent*/, std::string & /*title*/) const
   {
     return 0;

src/laybasic/laybasic/layTipDialog.h

@@ -55,7 +55,7 @@ public:
    *
    *  Creates a tip dialog with the given parent, message text and configuration key. The configuration key
    *  is the key under which the status of the dialog is stored.
-   *  The buttons argument allows to specify which buttons to show (see buttons_type enum for the button
+   *  The buttons argument allows one to specify which buttons to show (see buttons_type enum for the button
    *  combinations available.
    */
   TipDialog (QWidget *parent, const std::string &text, const std::string &key, buttons_type buttons = close_buttons); 

src/laybasic/laybasic/layWidgets.h

@@ -112,7 +112,7 @@ private:
 /**
  *  @brief A library selection combo box
  *
- *  This combo box allows to select a library
+ *  This combo box allows selecting a library
  */
 class LAYBASIC_PUBLIC LibrarySelectionComboBox
   : public QComboBox
@@ -166,7 +166,7 @@ private:
 /**
  *  @brief A layer selection combo box
  *
- *  This combo box allows to select a (physical) layer from a layout
+ *  This combo box allows selecting a (physical) layer from a layout
  */
 class LAYBASIC_PUBLIC LayerSelectionComboBox
   : public QComboBox
@@ -254,7 +254,7 @@ private:
 /**
  *  @brief A cell view selection combo box
  *
- *  This combo box allows to select a cellview from a lay::LayoutView
+ *  This combo box allows selecting a cellview from a lay::LayoutView
  */
 class LAYBASIC_PUBLIC CellViewSelectionComboBox
   : public QComboBox