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- /*
- $Id: kfontdialog.h 465272 2005-09-29 09:47:40Z mueller $
-
- Requires the Qt widget libraries, available at no cost at
- http://www.troll.no
-
- Copyright (C) 1997 Bernd Johannes Wuebben <wuebben@kde.org>
- Copyright (c) 1999 Preston Brown <pbrown@kde.org>
- Copyright (c) 1999 Mario Weilguni <mweilguni@kde.org>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
- */
- #ifndef _K_FONT_DIALOG_H_
- #define _K_FONT_DIALOG_H_
-
- #include <qlineedit.h>
- #include <qbutton.h>
- #include <kdialogbase.h>
-
- class QComboBox;
- class QCheckBox;
- class QFont;
- class QGroupBox;
- class QLabel;
- class QStringList;
- class KListBox;
- class KIntNumInput;
- /**
- * @short A font selection widget.
- *
- * While KFontChooser as an ordinary widget can be embedded in
- * custom dialogs and therefore is very flexible, in most cases
- * it is preferable to use the convenience functions in
- * KFontDialog.
- *
- * \image html kfontchooser.png "KDE Font Chooser"
- *
- * @author Preston Brown <pbrown@kde.org>, Bernd Wuebben <wuebben@kde.org>
- * @version $Id: kfontdialog.h 465272 2005-09-29 09:47:40Z mueller $
- */
- class KDEUI_EXPORT KFontChooser : public QWidget
- {
- Q_OBJECT
- Q_PROPERTY( QFont font READ font WRITE setFont )
-
- public:
- /**
- * @li @p FamilyList - Identifies the family (leftmost) list.
- * @li @p StyleList - Identifies the style (center) list.
- * @li @p SizeList - Identifies the size (rightmost) list.
- */
- enum FontColumn { FamilyList=0x01, StyleList=0x02, SizeList=0x04};
-
- /**
- * @li @p FontDiffFamily - Identifies a requested change in the font family.
- * @li @p FontDiffStyle - Identifies a requested change in the font style.
- * @li @p FontDiffSize - Identifies a requested change in the font size.
- */
- enum FontDiff { FontDiffFamily=0x01, FontDiffStyle=0x02, FontDiffSize=0x04 };
-
- /**
- * Constructs a font picker widget.
- * It normally comes up with all font families present on the system; the
- * getFont method below does allow some more fine-tuning of the selection of fonts
- * that will be displayed in the dialog.
- * <p>Consider the following code snippet;
- * \code
- * QStringList list;
- * KFontChooser::getFontList(list,SmoothScalableFonts);
- * KFontChooser chooseFont = new KFontChooser(0, "FontList", false, list);
- * \endcode
- * <p>
- * The above creates a font chooser dialog with only SmoothScaleble fonts.
- *
- * @param parent The parent widget.
- * @param name The widget name.
- * @param onlyFixed Only display fonts which have fixed-width
- * character sizes.
- * @param fontList A list of fonts to display, in XLFD format. If
- * no list is formatted, the internal KDE font list is used.
- * If that has not been created, X is queried, and all fonts
- * available on the system are displayed.
- * @param diff Display the difference version dialog.
- * See KFontDialog::getFontDiff().
- * @param makeFrame Draws a frame with titles around the contents.
- * @param visibleListSize The minimum number of visible entries in the
- * fontlists.
- * @param sizeIsRelativeState If not zero the widget will show a
- * checkbox where the user may choose whether the font size
- * is to be interpreted as relative size.
- * Initial state of this checkbox will be set according to
- * *sizeIsRelativeState, user choice may be retrieved by
- * calling sizeIsRelative().
- */
- KFontChooser(QWidget *parent = 0L, const char *name = 0L,
- bool onlyFixed = false,
- const QStringList &fontList = QStringList(),
- bool makeFrame = true, int visibleListSize=8,
- bool diff = false, QButton::ToggleState *sizeIsRelativeState = 0L );
-
- /**
- * Destructs the font chooser.
- */
- virtual ~KFontChooser();
-
- /**
- * Enables or disable a font column in the chooser.
- *
- * Use this
- * function if your application does not need or supports all font
- * properties.
- *
- * @param column Specify the columns. An or'ed combination of
- * @p FamilyList, @p StyleList and @p SizeList is possible.
- * @param state If @p false the columns are disabled.
- */
- void enableColumn( int column, bool state );
-
- /**
- * Sets the currently selected font in the chooser.
- *
- * @param font The font to select.
- * @param onlyFixed Readjust the font list to display only fixed
- * width fonts if @p true, or vice-versa.
- */
- void setFont( const QFont &font, bool onlyFixed = false );
-
- /**
- * @return The bitmask corresponding to the attributes the user
- * wishes to change.
- */
- int fontDiffFlags();
-
- /**
- * @return The currently selected font in the chooser.
- */
- QFont font() const { return selFont; }
-
- /**
- * Sets the color to use in the preview.
- */
- void setColor( const QColor & col );
-
- /**
- * @return The color currently used in the preview (default: the text
- * color of the active color group)
- */
- QColor color() const;
-
- /**
- * Sets the background color to use in the preview.
- */
- void setBackgroundColor( const QColor & col );
-
- /**
- * @return The background color currently used in the preview (default:
- * the base color of the active colorgroup)
- */
- QColor backgroundColor() const;
-
- /**
- * Sets the state of the checkbox indicating whether the font size
- * is to be interpreted as relative size.
- * NOTE: If parameter sizeIsRelative was not set in the constructor
- * of the widget this setting will be ignored.
- */
- void setSizeIsRelative( QButton::ToggleState relative );
-
- /**
- * @return Whether the font size is to be interpreted as relative size
- * (default: QButton:Off)
- */
- QButton::ToggleState sizeIsRelative() const;
-
-
- /**
- * @return The current text in the sample text input area.
- */
- QString sampleText() const { return sampleEdit->text(); }
-
- /**
- * Sets the sample text.
- *
- * Normally you should not change this
- * text, but it can be better to do this if the default text is
- * too large for the edit area when using the default font of your
- * application.
- *
- * @param text The new sample text. The current will be removed.
- */
- void setSampleText( const QString &text )
- {
- sampleEdit->setText( text );
- }
-
- /**
- * Shows or hides the sample text box.
- *
- * @param visible Set it to true to show the box, to false to hide it.
- * @since 3.5
- */
- void setSampleBoxVisible( bool visible )
- {
- sampleEdit->setShown( visible );
- }
-
- /**
- * Converts a QFont into the corresponding X Logical Font
- * Description (XLFD).
- *
- * @param theFont The font to convert.
- * @return A string representing the given font in XLFD format.
- */
- static QString getXLFD( const QFont &theFont )
- { return theFont.rawName(); }
-
- /**
- * The selection criteria for the font families shown in the dialog.
- * @li @p FixedWidthFont when included only fixed-width fonts are returned.
- * The fonts where the width of every character is equal.
- * @li @p ScalableFont when included only scalable fonts are returned;
- * certain configurations allow bitmap fonts to remain unscaled and
- * thus these fonts have limited number of sizes.
- * @li @p SmoothScalableFont when included only return smooth scalable fonts.
- * this will return only non-bitmap fonts which are scalable to any size requested.
- * Setting this option to true will mean the "scalable" flag is irrelavant.
- */
- enum FontListCriteria { FixedWidthFonts=0x01, ScalableFonts=0x02, SmoothScalableFonts=0x04 };
-
- /**
- * Creates a list of font strings.
- *
- * @param list The list is returned here.
- * @param fontListCriteria should contain all the restrictions for font selection as OR-ed values
- * @see KFontChooser::FontListCriteria for the individual values
- */
- static void getFontList( QStringList &list, uint fontListCriteria);
-
- /**
- * Reimplemented for internal reasons.
- */
- virtual QSize sizeHint( void ) const;
-
- signals:
- /**
- * Emitted whenever the selected font changes.
- */
- void fontSelected( const QFont &font );
-
- private slots:
- void toggled_checkbox();
- void family_chosen_slot(const QString&);
- void size_chosen_slot(const QString&);
- void style_chosen_slot(const QString&);
- void displaySample(const QFont &font);
- void showXLFDArea(bool);
- void size_value_slot(int);
- private:
- void fillFamilyListBox(bool onlyFixedFonts = false);
- void fillSizeList();
- // This one must be static since getFontList( QStringList, char*) is so
- static void addFont( QStringList &list, const char *xfont );
-
- void setupDisplay();
-
- // pointer to an optinally supplied list of fonts to
- // inserted into the fontdialog font-family combo-box
- QStringList fontList;
-
- KIntNumInput *sizeOfFont;
-
- QLineEdit *sampleEdit;
- QLineEdit *xlfdEdit;
-
- QLabel *familyLabel;
- QLabel *styleLabel;
- QCheckBox *familyCheckbox;
- QCheckBox *styleCheckbox;
- QCheckBox *sizeCheckbox;
- QLabel *sizeLabel;
- KListBox *familyListBox;
- KListBox *styleListBox;
- KListBox *sizeListBox;
- QComboBox *charsetsCombo; // BIC: remove in KDE4
- QCheckBox *sizeIsRelativeCheckBox;
-
- QFont selFont;
-
- QString selectedStyle;
- int selectedSize;
- QMap<QString, QString> currentStyles;
-
- bool usingFixed;
-
- protected:
- virtual void virtual_hook( int id, void* data );
- private:
- class KFontChooserPrivate;
- KFontChooserPrivate *d;
- };
-
- /**
- * @short A font selection dialog.
- *
- * The KFontDialog provides a dialog for interactive font selection.
- * It is basically a thin wrapper around the KFontChooser widget,
- * which can also be used standalone. In most cases, the simplest
- * use of this class is the static method KFontDialog::getFont(),
- * which pops up the dialog, allows the user to select a font, and
- * returns when the dialog is closed.
- *
- * Example:
- *
- * \code
- * QFont myFont;
- * int result = KFontDialog::getFont( myFont );
- * if ( result == KFontDialog::Accepted )
- * ...
- * \endcode
- *
- * \image html kfontdialog.png "KDE Font Dialog"
- *
- * @author Preston Brown <pbrown@kde.org>, Bernd Wuebben <wuebben@kde.org>
- * @version $Id: kfontdialog.h 465272 2005-09-29 09:47:40Z mueller $
- */
- class KDEUI_EXPORT KFontDialog : public KDialogBase {
- Q_OBJECT
-
- public:
- /**
- * Constructs a font selection dialog.
- *
- * @param parent The parent widget of the dialog, if any.
- * @param name The name of the dialog.
- * @param modal Specifies whether the dialog is modal or not.
- * @param onlyFixed only display fonts which have fixed-width
- * character sizes.
- * @param fontlist a list of fonts to display, in XLFD format. If
- * no list is formatted, the internal KDE font list is used.
- * If that has not been created, X is queried, and all fonts
- * available on the system are displayed.
- * @param makeFrame Draws a frame with titles around the contents.
- * @param diff Display the difference version dialog. See getFontDiff().
- * @param sizeIsRelativeState If not zero the widget will show a
- * checkbox where the user may choose whether the font size
- * is to be interpreted as relative size.
- * Initial state of this checkbox will be set according to
- * *sizeIsRelativeState, user choice may be retrieved by
- * calling sizeIsRelative().
- *
- */
- KFontDialog( QWidget *parent = 0L, const char *name = 0,
- bool onlyFixed = false, bool modal = false,
- const QStringList &fontlist = QStringList(),
- bool makeFrame = true, bool diff = false,
- QButton::ToggleState *sizeIsRelativeState = 0L );
-
- /**
- * Sets the currently selected font in the dialog.
- *
- * @param font The font to select.
- * @param onlyFixed readjust the font list to display only fixed
- * width fonts if true, or vice-versa
- */
- void setFont( const QFont &font, bool onlyFixed = false )
- { chooser->setFont(font, onlyFixed); }
-
- /**
- * @return The currently selected font in the dialog.
- */
- QFont font() const { return chooser->font(); }
-
- /**
- * Sets the state of the checkbox indicating whether the font size
- * is to be interpreted as relative size.
- * NOTE: If parameter sizeIsRelative was not set in the constructor
- * of the dialog this setting will be ignored.
- */
- void setSizeIsRelative( QButton::ToggleState relative )
- { chooser->setSizeIsRelative( relative ); }
-
- /**
- * @return Whether the font size is to be interpreted as relative size
- * (default: false)
- */
- QButton::ToggleState sizeIsRelative() const
- { return chooser->sizeIsRelative(); }
-
- /**
- * Creates a modal font dialog, lets the user choose a font,
- * and returns when the dialog is closed.
- *
- * @param theFont a reference to the font to write the chosen font
- * into.
- * @param onlyFixed if true, only select from fixed-width fonts.
- * @param parent Parent widget of the dialog. Specifying a widget different
- * from 0 (Null) improves centering (looks better).
- * @param makeFrame Draws a frame with titles around the contents.
- * @param sizeIsRelativeState If not zero the widget will show a
- * checkbox where the user may choose whether the font size
- * is to be interpreted as relative size.
- * Initial state of this checkbox will be set according to
- * *sizeIsRelativeState and user choice will be returned
- * therein.
- *
- * @return QDialog::result().
- */
- static int getFont( QFont &theFont, bool onlyFixed = false,
- QWidget *parent = 0L, bool makeFrame = true,
- QButton::ToggleState *sizeIsRelativeState = 0L );
-
- /**
- * Creates a modal font difference dialog, lets the user choose a selection
- * of changes that should be made to a set of fonts, and returns when the
- * dialog is closed. Useful for choosing slight adjustments to the font set
- * when the user would otherwise have to manually edit a number of fonts.
- *
- * @param theFont a reference to the font to write the chosen font
- * into.
- * @param diffFlags a reference to the int into which the chosen
- * difference selection bitmask should be written.
- * Check the returned bitmask like:
- * \code
- * if ( diffFlags & KFontChooser::FontDiffFamily )
- * [...]
- * if ( diffFlags & KFontChooser::FontDiffStyle )
- * [...]
- * if ( diffFlags & KFontChooser::FontDiffSize )
- * [...]
- * \endcode
- * @param onlyFixed if true, only select from fixed-width fonts.
- * @param parent Parent widget of the dialog. Specifying a widget different
- * from 0 (Null) improves centering (looks better).
- * @param makeFrame Draws a frame with titles around the contents.
- * @param sizeIsRelativeState If not zero the widget will show a
- * checkbox where the user may choose whether the font size
- * is to be interpreted as relative size.
- * Initial state of this checkbox will be set according to
- * *sizeIsRelativeState and user choice will be returned
- * therein.
- *
- * @returns QDialog::result().
- */
- static int getFontDiff( QFont &theFont, int &diffFlags, bool onlyFixed = false,
- QWidget *parent = 0L, bool makeFrame = true,
- QButton::ToggleState *sizeIsRelativeState = 0L );
-
- /**
- * When you are not only interested in the font selected, but also
- * in the example string typed in, you can call this method.
- *
- * @param theFont a reference to the font to write the chosen font
- * into.
- * @param theString a reference to the example text that was typed.
- * @param onlyFixed if true, only select from fixed-width fonts.
- * @param parent Parent widget of the dialog. Specifying a widget different
- * from 0 (Null) improves centering (looks better).
- * @param makeFrame Draws a frame with titles around the contents.
- * @param sizeIsRelativeState If not zero the widget will show a
- * checkbox where the user may choose whether the font size
- * is to be interpreted as relative size.
- * Initial state of this checkbox will be set according to
- * *sizeIsRelativeState and user choice will be returned
- * therein.
- * @return The result of the dialog.
- */
- static int getFontAndText( QFont &theFont, QString &theString,
- bool onlyFixed = false, QWidget *parent = 0L,
- bool makeFrame = true,
- QButton::ToggleState *sizeIsRelativeState = 0L );
-
- signals:
- /**
- * Emitted whenever the currently selected font changes.
- * Connect to this to monitor the font as it is selected if you are
- * not running modal.
- */
- void fontSelected( const QFont &font );
-
- protected:
- KFontChooser *chooser;
-
- protected:
- virtual void virtual_hook( int id, void* data );
- private:
- class KFontDialogPrivate;
- KFontDialogPrivate *d;
-
- };
-
- #endif
-