166 lines
4.9 KiB
C++
166 lines
4.9 KiB
C++
/*
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* Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef PLASMA_THEME_H
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#define PLASMA_THEME_H
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#include <QtCore/QObject>
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#include <QtGui/QFont>
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#include <QtGui/QFontMetrics>
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#include <KDE/KSharedConfig>
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#include <plasma/plasma_export.h>
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#include <plasma/packagestructure.h>
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namespace Plasma
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{
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/**
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* @short Interface to the Plasma theme
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*
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* Accessed via Plasma::Theme::defaultTheme() e.g:
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* \code
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* QString imagePath = Plasma::Theme::defaultTheme()->imagePath("widgets/clock")
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* \endcode
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*
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* Plasma::Theme provides access to a common and standardized set of graphic
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* elements stored in SVG format. This allows artists to create single packages
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* of SVGs that will affect the look and feel of all workspace components.
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*
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* Plasma::Svg uses Plasma::Theme internally to locate and load the appropriate
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* SVG data. Alternatively, Plasma::Theme can be used directly to retrieve
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* file system paths to SVGs by name.
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*/
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class PLASMA_EXPORT Theme : public QObject
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{
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Q_OBJECT
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Q_PROPERTY( QString themeName READ themeName )
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public:
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/**
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* Singleton pattern accessor
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**/
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static Theme* defaultTheme();
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/**
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* Default constructor. Usually you want to use the singleton instead.
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*/
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explicit Theme( QObject* parent = 0 );
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~Theme();
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/**
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* @return a package structure representing a Theme
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*/
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static PackageStructure::Ptr packageStructure();
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/**
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* Sets the application the theme setting is associated with. This
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* allows for individual applications that use libplasma to have the
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* theme set independantly.
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*
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* @param appname name of the application
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**/
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void setApplication(const QString &appname);
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/**
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* Sets the current theme being used.
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*/
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void setThemeName(const QString &themeName);
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/**
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* @return the name of the theme.
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*/
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QString themeName() const;
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/**
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* Retrieve the path for an SVG image in the current theme.
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*
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* @arg name the name of the file in the theme directory (without the
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* ".svg" part or a leading slash)
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* @return the full path to the requested file for the current theme
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*/
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Q_INVOKABLE QString imagePath( const QString& name ) const;
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/**
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* Returns the color scheme configurationthat goes along this theme.
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* This can be used with KStatefulBrush and KColorScheme to determine
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* the proper colours to use along with the visual elements in this theme.
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*/
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Q_INVOKABLE KSharedConfigPtr colorScheme() const;
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/**
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* Returns the text color to be used by items resting on the background
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*/
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Q_INVOKABLE QColor textColor() const;
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/**
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* Returns the background color to be used by items resting on the background
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*/
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Q_INVOKABLE QColor backgroundColor() const;
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/**
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* Sets the default font to be used with themed items. Defaults to
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* the application wide default font.
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*/
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Q_INVOKABLE void setFont(const QFont &font);
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/**
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* Returns the font to be used by themed items
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*/
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Q_INVOKABLE QFont font() const;
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/**
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* Returns the font metrics for the font to be used by themed items
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*/
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Q_INVOKABLE QFontMetrics fontMetrics() const;
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/**
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* Returns if the window compositing is active or not
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*/
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Q_INVOKABLE bool compositingActive() const;
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Q_SIGNALS:
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/**
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* Emitted when the user changes the theme. SVGs should be reloaded at
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* that point
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*/
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void themeChanged();
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public Q_SLOTS:
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/**
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* Notifies the Theme object that the theme settings have changed
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* and should be read from the config file
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**/
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void settingsChanged();
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private Q_SLOTS:
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void compositingChanged();
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void colorsChanged();
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private:
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friend class ThemeSingleton;
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class Private;
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Private* const d;
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};
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} // Plasma namespace
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#endif // multiple inclusion guard
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