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Doc - Add information about creating custom wizards. 

Reviewed-by: Friedemann Kleint
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doc/qtcreator.qdoc
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\o \l{Setting Up Development Environment for Maemo}
\o \l{Setting Up Development Environment for Symbian}
\o \l{Managing Sessions}
\o \l{Adding New Custom Wizards}
\endlist
\o \l{Using the Editor}
\list
......@@ -1709,7 +1710,7 @@
\contentspage index.html
\previouspage creator-project-managing.html
\page creator-project-creating.html
\nextpage creator-project-qmake.html
\nextpage creator-project-wizards.html
\title Creating a Project
......@@ -1771,6 +1772,9 @@
\image qtcreator-new-project-summary.png
\endlist
You can create your own project and class wizards. For more information,
see \l{Adding New Custom Wizards}.
\section1 Displaying Additional File Types in Projects Pane
Qt Creator determines whether to display files from the project folder
......@@ -1790,20 +1794,28 @@
This also makes the files available in the \gui Locator.
\section1 Adding New Project Wizards
*/
/*!
\contentspage index.html
\previouspage creator-project-creating.html
\page creator-project-wizards.html
\nextpage creator-project-qmake.html
\title Adding New Custom Wizards
If you have a team working on a large application or several applications,
you might want to standardize the way the team members create projects
and classes.
You can use the wizard templates in the \c {share/qtcreator/templates/wizards}
folder to create your own project and class wizards. Qt Creator looks in the
folder and adds all wizards defined in wizard.xml files to the \gui New dialog
that opens when you select \gui {File > New File or Project}.
You can copy the wizard templates in the template folders
to create your own project and class wizards. They are displayed in the
\gui New dialog that opens when you choose \gui {File > New File or Project}.
In a project wizard, you can specify the files needed in a project.
You can add wizard pages to allow developers to specify settings for the
projcet.
project.
In a class wizard, you can allow developers to specify the class name, base
class, and header and source files for the class.
......@@ -1814,7 +1826,45 @@
\image qtcreator-custom-project-wizards.png "The New dialog with custom projects and classes"
\section2 Creating Project Wizards
\section1 Overview of Custom Wizards
A custom wizard defines the user interface of a wizard page. The values the user enters
in the wizard are assigned field names. Field name and value pairs are then passed to
the file creation process. File creation can happen in the following ways:
\list 1
\o Template-based, where source files that contain placeholders for
the field names are provided. During processing, the placeholders are replaced
by the values from the wizard page. Optionally, modifier
characters are applied. For more information, see \l{Processing Template Files}.
\o Generator script, where a script is called to create the files.
\note This option mainly exists to accommodate existing generator scripts or
cases where complicated algorithmic logic is required when generating files. Writing
cross-platform scripts is inherently difficult, and therefore, it is not recommended
for new wizards. For more information, see \l{Using Generator Scripts}.
\endlist
Custom wizards are located in subdirectories of the following directories:
\list
\o \c{share/qtcreator/templates/wizards}
\o the local user's configuration folder,
\c{$HOME/.config/Nokia/qtcreator/templates/wizards}
\o \c{%APPDATA%\Nokia\qtcreator\templates\wizards}
\endlist
They contain an XML configuration file called wizard.xml, the
template source files, and optionally, the generator script.
\section1 Creating Project Wizards
To create a project wizard:
......@@ -1891,31 +1941,59 @@
\endlist
\o The following code specifies the files to add to the project:
\code
\o Files to be added to the project:
\list
\o Template-based: The following code specifies the files to add to the project:
\code
<files>
<file source="main.cpp" openeditor="true" />
<file source="project.pro" target="%ProjectName%.pro" openproject="true" />
\endcode
\list
\list
\o \c source specifies the file to copy to the project. The files must be
located in the wizard folder.
\o \c source specifies the file to copy to the project. The files must be
located in the wizard folder.
\o \c openeditor indicates that the file is to be opened in an editor after
the wizard has finished.
\o \c target specifies the new filename for the file. The \c {%ProjectName%}
variable is replaced with the string that users specify in the \gui Name
field on the first page of the wizard.
\o \c target specifies the new filename for the file. The \c {%ProjectName%}
variable is replaced with the string that users specify in the \gui Name
field on the first page of the wizard.
\o \c openproject indicates that the file is a project file which is to be opened
after the wizard has finished.
\o \c openproject indicates that the file is a project file which is to be opened
after the wizard has finished.
\o \c openeditor indicates that the file is to be opened in an editor after
the wizard has finished.
\endlist
See also \l{Processing Template Files}.
\o Generator-script: The following code specifies that the script \c generate.pl is to be used
to create the files:
\code
<generatorscript binary="generate.pl">
<argument value="--class-name=%ClassName%"/>
<argument value="--project-name=%ProjectName%"/>
<argument value="--header-suffix=%CppHeaderSuffix%" omit-empty="true"/>
<argument value="--source-suffix=%CppSourceSuffix%" omit-empty="true"/>
<argument value="--description=%Description%" omit-empty="true" write-file="true"/>
</generatorscript>
\endcode
In each argument, the field placeholders are replaced by the field
values. There are additional boolean attributes which give fine-grained control:
\list
\o \c omit-empty specifies that complete argument is to be omitted when all
placeholders expand to empty values. In the above example,
the option \c --source-suffix will not be passed to the script if the value is empty.
\o \c write-file indicates that instead of the expanded value,
the value will be written to a temporary file and its file name will be
passed to the script instead. This is useful for multi-line text fields.
\endlist
See also \l{Using Generator Scripts}.
\endlist
\o The following code creates a page that specifies settings for the project:
......@@ -1958,7 +2036,7 @@
\endlist
\section2 Creating Class Wizards
\section1 Creating Class Wizards
The widget.xml file for a class wizard is very similar to that for a project
wizard. The differences are discussed below.
......@@ -2012,6 +2090,7 @@
For example, if users enter \bold MyClass, the filename becomes myclass.cpp
when the project is created.
\o \c {%CppHeaderSuffix%} is replaced by the default header suffix, which
is also defined in \gui {File Naming}. Here, the filename would
become myclass.h.
......@@ -2052,12 +2131,81 @@
\endlist
\section1 Processing Template Files
When processing a template source file, placeholders specifying the field names
in the format \c{%FIELDNAME%} are replaced by the values entered by the user.
In addition, modifier characters are supported. For example, \c{%FIELDNAME:u%}
specifies that the value is converted to upper case. This enables generating header
guards for C++ header files.
The following modifier characters are supported:
\list
\o \c{l} for lower case.
\o \c{u} for upper case.
\o \c{c} for upper case initial letter ("project" > "Project").
\endlist
You can use conditions to add sections of the file depending on field values.
Use a syntax that is similar to C++ preprocessing, as demonstrated in
the profile of the \c{helloworld} example:
\code
@if "%SCRIPT%" == "true"
QT += script
@endif
\endcode
The value of the Boolean (QCheckBox) field labeled \c{SCRIPT} determines
whether the script module is added. The expressions must expand to valid
Javascript expressions after field replacement.
\section1 Using Generator Scripts
The values entered in the wizard page are passed to the script
as command line arguments as defined by the wizard configuration file.
In addition, the script must implement a \c{--dry-run} command line option.
Qt Creator needs to know the file names before the files are created to check
whether files with identical names already exist, for example. Therefore,
script file generation is a two-step process:
\list 1
\o Determine file names and attributes: The script is called with the command line
\c{--dry-run} option and the field values. It then prints the relative path
names of the files it intends to create, followed by comma-separated attributes
matching those of the \c{<file>} element, for example:
\code
myclass.cpp,openeditor
myclass.h,openeditor
myproject.pro,openproject
\endcode
\o Create files: The script is called with the parameters only in the working directory.
It then actually creates the files. If directories are needed, the script
should create them, too.
\endlist
The \c{scriptgeneratedproject} sample wizard illustrates the usage.
A typical script invocation for this example (obtained by running Qt Creator with
\c{--customwizard-verbose}) looks as follows:
\code
generate.pl --class-name=TestClass --project-name=TestProject --header-suffix=h --source-suffix=cpp --description=/tmp/qtcreatorj26629.txt
\endcode
*/
/*!
\contentspage index.html
\previouspage creator-project-creating.html
\previouspage creator-project-wizards.html
\page creator-project-qmake.html
\nextpage creator-project-cmake.html
......
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