UI::Dialogs::PolarDialogImpl Class Reference

A Dialog to enter a function from in polar coordinates. More...

#include <PolarDialogImpl.h>

Inheritance diagram for UI::Dialogs::PolarDialogImpl:

Collaboration diagram for UI::Dialogs::PolarDialogImpl:

List of all members.

Public Member Functions
	PolarDialogImpl (QWidget *parent=0, Qt::WFlags f=0)
Private Slots
virtual bool	checkValidity ()
virtual bool	loadFunction ()
Private Member Functions
virtual bool	functionPresent (const QString &)
virtual void	writeSource ()

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Detailed Description

A Dialog to enter a function from in polar coordinates.

The function is evaluated as .

The function will then be compiled into a dynamic library and loaded to be displayed on screen

Todo:

Make the above definition mathematically correct

Author:

Helge Preuss <lene.preuss@gmail.com>

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Constructor & Destructor Documentation

UI::Dialogs::PolarDialogImpl::PolarDialogImpl	(	QWidget *	parent = 0,
		Qt::WFlags	f = 0
	)

PolarDialogImpl c'tor taking parameters for the parent ComplexDialog, which in turn inherited them from QDialog displays the dialog

Parameters:

parent	parent widget (NULL)
f	window flags

References checkValidity(), and loadFunction().

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Member Function Documentation

bool UI::Dialogs::PolarDialogImpl::checkValidity

(

)

[private, virtual, slot]

this function is called when the user clicks the OK button in the Function Dialog. checks whether all fields are filled in, whether the given function is valid C++ syntax, ie. whether it compiles, and whether the compiled code links into a dynamic library. as a side effect, it generates this library. finally, it checks whether the library can be loaded. if so, it accepts the input. also, this function creates a directory structure "plugins/real" under the resource directory and changes the CWD to that folder for the duration of checkValidity (). the name for this function is chosen rather unfortunately, i guess.

Returns:

success

Referenced by PolarDialogImpl().

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bool UI::Dialogs::PolarDialogImpl::functionPresent

(

const QString &

libName

)

[private, virtual]

loads the dynamic library given by libName, if it exists and can be loaded. then it checks whether a function named f () is present. if so, returns true. else borks with an error message.

Parameters:

libName

filename for the selected DLL

Returns:

success

Implements UI::Dialogs::PluginCreator.

bool UI::Dialogs::PolarDialogImpl::loadFunction

(

)

[private, virtual, slot]

display and load the selected DLL into current address space loads a dynamic library, which can be selected by the user on a QFileDialog. calls loadFunction () below. see there.

Returns:

success (?)

Implements UI::Dialogs::PluginCreator.

Referenced by PolarDialogImpl().

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void UI::Dialogs::PolarDialogImpl::writeSource

(

)

[private, virtual]

write a C++ source file, containing the given function and some framework to make it compilable by g++ (there is currently no support for other compilers). the resulting file "<function-name>.C" defines the function f () and the function symbolic (), which returns the function in symbolic terms, not in C++ syntax.

Implements UI::Dialogs::PluginCreator.

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The documentation for this class was generated from the following files:

• HyperspaceExplorer/src/UI/PolarDialogImpl.h
• HyperspaceExplorer/src/UI/PolarDialogImpl.C