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tdemultimedia/juk/filerenamer.h

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/***************************************************************************
begin : Thu Oct 28 2004
copyright : (C) 2004 by Michael Pyne
: (C) 2003 Frerich Raabe <raabe@kde.org>
email : michael.pyne@kdemail.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef JUK_FILERENAMER_H
#define JUK_FILERENAMER_H
#include <tqstring.h>
#include <tqvaluevector.h>
#include <tqmap.h>
#include "filerenamerbase.h"
#include "filerenameroptions.h"
#include "categoryreaderinterface.h"
#include "tagrenameroptions.h"
#include "playlistitem.h"
class ExampleOptionsDialog;
class TQCheckBox;
class TQLayout;
class TQLayoutItem;
class TQPushButton;
class TQVBox;
class PlaylistItem;
class TQSignalMapper;
// Used to decide what direction the FileRenamerWidget will move rows in.
enum MovementDirection { MoveUp, MoveDown };
/**
* This is used by FileRenamerWidget to store information about a particular
* tag type, including its position, the TQFrame holding the information,
* the up, down, and enable buttons, and the user-selected renaming options.
*/
struct Row
{
Row() : widget(0), upButton(0), downButton(0), enableButton(0) {}
TQWidget *widget;
TQPushButton *upButton, *downButton, *optionsButton, *enableButton;
TagRenamerOptions options;
CategoryID category; // Includes category and a disambiguation id.
unsigned position; ///< Position in the GUI (0 == top)
TQString name;
};
/**
* A list of rows, each of which may have its own category options and other
* associated data. There is no relation between the order of rows in the vector and their
* GUI layout. Instead, each Row has a position member which indicates what GUI position it
* takes up. The index into the vector is known as the row identifier (which is unique but
* not necessarily constant).
*/
typedef TQValueVector<Row> Rows;
/**
* Holds a list directory separator checkboxes which separate a row. There
* should always be 1 less than the number of rows in the GUI.
*
* Used for ConfigCategoryReader.
*/
typedef TQValueVector<TQCheckBox *> DirSeparatorCheckBoxes;
/**
* Associates a CategoryID combination with a set of options.
*
* Used for ConfigCategoryReader
*/
typedef TQMap<CategoryID, TagRenamerOptions> CategoryOptionsMap;
/**
* An implementation of CategoryReaderInterface that reads the user's settings
* from the global TDEConfig configuration object, and reads track information
* from whatever the given PlaylistItem is. You can assign different
* PlaylistItems in order to change the returned tag category information.
*
* @author Michael Pyne <michael.pyne@kdemail.net>
*/
class ConfigCategoryReader : public CategoryReaderInterface
{
public:
// ConfigCategoryReader specific members
ConfigCategoryReader();
const PlaylistItem *playlistItem() const { return m_currentItem; }
void setPlaylistItem(const PlaylistItem *item) { m_currentItem = item; }
// CategoryReaderInterface reimplementations
virtual TQString categoryValue(TagType type) const;
virtual TQString prefix(const CategoryID &category) const;
virtual TQString suffix(const CategoryID &category) const;
virtual TagRenamerOptions::EmptyActions emptyAction(const CategoryID &category) const;
virtual TQString emptyText(const CategoryID &category) const;
virtual TQValueList<CategoryID> categoryOrder() const;
virtual TQString separator() const;
virtual TQString musicFolder() const;
virtual int trackWidth(unsigned categoryNum) const;
virtual bool hasFolderSeparator(unsigned index) const;
virtual bool isDisabled(const CategoryID &category) const;
private:
const PlaylistItem *m_currentItem;
CategoryOptionsMap m_options;
TQValueList<CategoryID> m_categoryOrder;
TQString m_separator;
TQString m_musicFolder;
TQValueVector<bool> m_folderSeparators;
};
/**
* This class implements a dialog that allows the user to alter the behavior
* of the file renamer. It supports 6 different genre types at this point,
* and it shouldn't be too difficult to extend that in the future if needed.
* It allows the user to open an external dialog, which will let the user see
* an example of what their current options will look like, by either allowing
* the user to type in some sample information, or by loading a file and
* reading tags from there.
*
* It also implements the CategoryReaderInterface in order to implement the
* example filename functionality.
*
* @author Michael Pyne <michael.pyne@kdemail.net>
*/
class FileRenamerWidget : public FileRenamerBase, public CategoryReaderInterface
{
TQ_OBJECT
public:
FileRenamerWidget(TQWidget *parent);
~FileRenamerWidget();
/// Maximum number of total categories the widget will allow.
static unsigned const MAX_CATEGORIES = 16;
/**
* This function saves all of the category options to the global TDEConfig
* object. You must call this manually, FileRenamerWidget doesn't call it
* automatically so that situations where the user hits "Cancel" work
* correctly.
*/
void saveConfig();
protected slots:
/**
* This function should be called whenever the example text may need to be
* changed. For example, when the user selects a different separator or
* changes the example text, this slot should be called.
*/
virtual void exampleTextChanged();
/**
* This function shows the example dialog if it is hidden, and hides the
* example dialog if it is shown.
*/
virtual void toggleExampleDialog();
/**
* This function inserts the currently selected category, so that the
* user can use duplicate tags in the file renamer.
*/
virtual void insertCategory();
private:
/**
* This function initializes the category options by loading the data from
* the global TDEConfig object. This is called automatically in the constructor.
*/
void loadConfig();
/**
* This function adds a "Insert Folder separator" checkbox to the end of
* the current layout. The setting defaults to being unchecked.
*/
void addFolderSeparatorCheckbox();
/**
* This function creates a row in the main view for category, appending it
* to the end. It handles connecting signals to the mapper and such as
* well.
*
* @param category Type of row to append.
* @return identifier of newly added row.
*/
unsigned addRowCategory(TagType category);
/**
* Removes the given row, updating the other rows to have the correct
* number of categoryNumber.
*
* @param id The identifier of the row to remove.
* @return true if the delete succeeded, false otherwise.
*/
bool removeRow(unsigned id);
/**
* Updates the mappings currently set for the row identified by oldId so
* that they emit newId instead. Does not actually delete the row given
* by oldId.
*
* @param oldId The identifier of the row to change mappings for.
* @param newId The identifier to use instead.
*/
void moveSignalMappings(unsigned oldId, unsigned newId);
/**
* This function sets up the internal view by creating the checkboxes and
* the rows for each category.
*/
void createTagRows();
/**
* Returns the value for \p category by retrieving the tag from m_exampleFile.
* If \p category is Track, then an appropriate fixup will be applied if needed
* to match the user's desired minimum width.
*
* @param category the category to retrieve the value for.
* @return the string representation of the value for \p category.
*/
TQString fileCategoryValue(TagType category) const;
/**
* Returns the value for \p category by reading the user entry for that
* category. If \p category is Track, then an appropriate fixup will be applied
* if needed to match the user's desired minimum width.
*
* @param category the category to retrieve the value for.
* @return the string representation of the value for \p category.
*/
virtual TQString categoryValue(TagType category) const;
/**
* Returns the user-specified prefix string for \p category.
*
* @param category the category to retrieve the value for.
* @return user-specified prefix string for \p category.
*/
virtual TQString prefix(const CategoryID &category) const
{
return m_rows[findIdentifier(category)].options.prefix();
}
/**
* Returns the user-specified suffix string for \p category.
*
* @param category the category to retrieve the value for.
* @return user-specified suffix string for \p category.
*/
virtual TQString suffix(const CategoryID &category) const
{
return m_rows[findIdentifier(category)].options.suffix();
}
/**
* Returns the user-specified empty action for \p category.
*
* @param category the category to retrieve the value for.
* @return user-specified empty action for \p category.
*/
virtual TagRenamerOptions::EmptyActions emptyAction(const CategoryID &category) const
{
return m_rows[findIdentifier(category)].options.emptyAction();
}
/**
* Returns the user-specified empty text for \p category. This text might
* be used to replace an empty value.
*
* @param category the category to retrieve the value for.
* @return the user-specified empty text for \p category.
*/
virtual TQString emptyText(const CategoryID &category) const
{
return m_rows[findIdentifier(category)].options.emptyText();
}
/**
* @return list of CategoryIDs corresponding to the user-specified category order.
*/
virtual TQValueList<CategoryID> categoryOrder() const;
/**
* @return string that separates the tag values in the file name.
*/
virtual TQString separator() const;
/**
* @return local path to the music folder used to store renamed files.
*/
virtual TQString musicFolder() const;
/**
* @param categoryNum Zero-based number of category to get results for (if more than one).
* @return the minimum width of the track category.
*/
virtual int trackWidth(unsigned categoryNum) const
{
CategoryID id(Track, categoryNum);
return m_rows[findIdentifier(id)].options.trackWidth();
}
/**
* @param index, the 0-based index for the folder boundary.
* @return true if there should be a folder separator between category
* index and index + 1, and false otherwise. Note that for purposes
* of this function, only categories that are required or non-empty
* should count.
*/
virtual bool hasFolderSeparator(unsigned index) const;
/**
* @param category The category to get the status of.
* @return true if \p category is disabled by the user, and false otherwise.
*/
virtual bool isDisabled(const CategoryID &category) const
{
return m_rows[findIdentifier(category)].options.disabled();
}
/**
* This moves the widget \p l in the direction given by \p direction, taking
* care to make sure that the checkboxes are not moved, and that they are
* enabled or disabled as appropriate for the new layout, and that the up and
* down buttons are also adjusted as necessary.
*
* @param id the identifier of the row to move
* @param direction the direction to move
*/
void moveItem(unsigned id, MovementDirection direction);
/**
* This function actually performs the work of showing the options dialog for
* \p category.
*
* @param category the category to show the options dialog for.
*/
void showCategoryOptions(TagType category);
/**
* This function enables or disables the widget in the row identified by \p id,
* controlled by \p enable. This function also makes sure that checkboxes are
* enabled or disabled as appropriate if they no longer make sense due to the
* adjacent category being enabled or disabled.
*
* @param id the identifier of the row to change. This is *not* the category to
* change.
* @param enable enables the category if true, disables if false.
*/
void setCategoryEnabled(int id, bool enable);
/**
* This function enables all of the up buttons.
*/
void enableAllUpButtons();
/**
* This function enables all of the down buttons.
*/
void enableAllDownButtons();
/**
* This function returns the identifier of the row at \p position.
*
* @param position The position to find the identifier of.
* @return The unique id of the row at \p position.
*/
unsigned idOfPosition(unsigned position) const;
/**
* This function returns the identifier of the row in the m_rows index that
* contains \p category and matches \p categoryNum.
*
* @param category the category to find.
* @return the identifier of the category, or MAX_CATEGORIES if it couldn't
* be found.
*/
unsigned findIdentifier(const CategoryID &category) const;
private slots:
/**
* This function reads the tags from \p file and ensures that the dialog will
* use those tags until a different file is selected or dataSelected() is
* called.
*
* @param file the path to the local file to read.
*/
virtual void fileSelected(const TQString &file);
/**
* This function reads the tags from the user-supplied examples and ensures
* that the dialog will use those tags until a file is selected using
* fileSelected().
*/
virtual void dataSelected();
/**
* This function brings up a dialog that allows the user to edit the options
* for \p id.
*
* @param id the unique id to bring up the options for.
*/
virtual void showCategoryOption(int id);
/**
* This function removes the row identified by id and updates the internal data to be
* consistent again, by forwarding the call to removeRow().
* This roundabout way is done due to TQSignalMapper.
*
* @param id The unique id to update
*/
virtual void slotRemoveRow(int id);
/**
* This function moves \p category up in the layout.
*
* @param id the unique id of the widget to move up.
*/
virtual void moveItemUp(int id);
/**
* This function moves \p category down in the layout.
*
* @param id the unique id of the widget to move down.
*/
virtual void moveItemDown(int id);
/**
* This slot should be called whenever the example input dialog is shown.
*/
virtual void exampleDialogShown();
/**
* This slot should be called whever the example input dialog is hidden.
*/
virtual void exampleDialogHidden();
private:
/// This is the frame that holds all of the category widgets and checkboxes.
TQVBox *m_mainFrame;
/**
* This is the meat of the widget, it holds the rows for the user configuration. It is
* initially created such that m_rows[0] is the top and row + 1 is the row just below.
* However, this is NOT NECESSARILY true, so don't rely on this. As soon as the user
* clicks an arrow to move a row then the order will be messed up. Use row.position to
* determine where the row is in the GUI.
*
* @see idOfPosition
* @see findIdentifier
*/
Rows m_rows;
/**
* This holds an array of checkboxes that allow the user to insert folder
* separators in between categories.
*/
DirSeparatorCheckBoxes m_folderSwitches;
ExampleOptionsDialog *m_exampleDialog;
/// This is true if we're reading example tags from m_exampleFile.
bool m_exampleFromFile;
TQString m_exampleFile;
// Used to map signals from rows to the correct widget.
TQSignalMapper *mapper;
TQSignalMapper *toggleMapper;
TQSignalMapper *upMapper;
TQSignalMapper *downMapper;
};
/**
* This class contains the backend code to actually implement the file renaming. It performs
* the function of moving the files from one location to another, constructing the file name
* based off of the user's options (see ConfigCategoryReader) and of setting folder icons
* if appropriate.
*
* @author Michael Pyne <michael.pyne@kdemail.net>
*/
class FileRenamer
{
public:
FileRenamer();
/**
* Renames the filename on disk of the file represented by item according
* to the user configuration stored in TDEConfig.
*
* @param item The item to rename.
*/
void rename(PlaylistItem *item);
/**
* Renames the filenames on disk of the files given in items according to
* the user configuration stored in TDEConfig.
*
* @param items The items to rename.
*/
void rename(const PlaylistItemList &items);
/**
* Returns the file name that would be generated based on the options read from
* interface, which must implement CategoryReaderInterface. (A whole interface is used
* so that we can re-use the code to generate filenames from a in-memory GUI and from
* TDEConfig).
*
* @param interface object to read options/data from.
*/
static TQString fileName(const CategoryReaderInterface &interface);
private:
/**
* Sets the folder icon for elements of the destination path for item (if
* there is not already a folder icon set, and if the folder's name has
* the album name.
*/
void setFolderIcon(const KURL &dst, const PlaylistItem *item);
/**
* Attempts to rename the file from \a src to \a dest. Returns true if the
* operation succeeded.
*/
bool moveFile(const TQString &src, const TQString &dest);
};
#endif /* JUK_FILERENAMER_H */
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