/* * Copyright (C) 2007 by Siraj Razick * Copyright (C) 2007 by Riccardo Iaconelli * Copyright (C) 2007 by Matt Broadstone * * This program 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, or * (at your option) any later version. * * This program 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 General Public License for more details * * You should have received a copy of the GNU Library General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef ICON_H #define ICON_H #include #include #include #include #include #include #include class QAction; /** * This class provides a generic Icon for the Plasma desktop. An icon, in this * sense, is not restricted to just an image, but can also contain text. Currently, * the Icon class is primarily used for desktop items, but is designed to be used * anywhere an icon is needed in an applet. * * @author Siraj Razick * @author Matt Broadstone */ namespace Plasma { class PLASMA_EXPORT Icon : public Plasma::Widget { Q_OBJECT Q_PROPERTY( QString text READ text WRITE setText ) Q_PROPERTY( QString infoText READ infoText WRITE setInfoText ) Q_PROPERTY( QIcon icon READ icon WRITE setIcon ) Q_PROPERTY( QSizeF iconSize READ iconSize ) Q_PROPERTY( QString svg WRITE setSvg ) public: /** * Creates a new Plasma::Icon. * @param parent the QGraphicsItem this icon is parented to. */ explicit Icon(QGraphicsItem *parent = 0); /** * Convenience constructor to create a Plasma::Icon with text. * @param text the text that will be displayed with this icon. * @param parent the QGraphicsItem this icon is parented to. */ explicit Icon(const QString &text, QGraphicsItem *parent = 0); /** * Creates a new Plasma::Icon with text and an icon. * @param icon the icon that will be displayed with this icon. * @param text the text that will be displayed with this icon. * @param parent The QGraphicsItem this icon is parented to. */ Icon(const QIcon &icon, const QString &text, QGraphicsItem *parent = 0); /** * Destroys this Plasma::Icon. */ virtual ~Icon(); /** * Returns the text associated with this icon. */ QString text() const; /** * Sets the text associated with this icon. * @param text the text to associate with this icon. */ void setText(const QString &text); /** * Convenience method to set the svg image to use when given the filepath and name of svg. * @param svgFilePath the svg filepath including name of the svg. * @param svgIconElement the svg element to use when displaying the svg. Defaults to all of them. */ void setSvg(const QString &svgFilePath, const QString &svgIconElement = QString()); /** * Returns the meta text associated with this icon. */ QString infoText() const; /** * Sets the additional information to be displayed by * this icon. * @param text additional meta text associated with this icon. */ void setInfoText(const QString &text); /** * @return the icon associated with this icon. */ QIcon icon() const; /** * Sets the graphical icon for this Plasma::Icon. * @param icon the KIcon to associate with this icon. */ void setIcon(const QIcon& icon); /** * Convenience method to set the icon of this Plasma::Icon * using a QString path to the icon. * @param icon the path to the icon to associate with this Plasma::Icon. */ Q_INVOKABLE void setIcon(const QString& icon); /** * @return the size of this Plasma::Icon's graphical icon. */ QSizeF iconSize() const; /** * Plasma::Icon allows the user to specify a number of actions * (current four) to be displayed around the widget. This method * allows for a created QAction (not a KAction!) to be added to * the Plasma::Icon. * @param action the QAction to associate with this icon. */ void addAction(QAction* action); /** * let set the orientation of the icon * Qt::Vertical: text under the icon * Qt::Horizontal text at a side of the icon depending * by the direction of the language * @param orientation the orientation we want */ void setOrientation(Qt::Orientation orientation); /** * inverts the layout of the icons if the orientation is horizontal, * normally we get icon on the left with left-to-right languages * @param invert if we want to invert the layout of icons */ void invertLayout(bool invert); /** * @return if the layout of the icons should appear inverted or not */ bool invertedLayout() const; /** * @return optimal size given a size for the icon * @param iconWidth desidered width of the icon */ QSizeF sizeFromIconSize(const qreal iconWidth) const; /** * @return the number of lines allowed to display */ int numDisplayLines(); /** * @param numLines the number of lines to show in the display. */ void setNumDisplayLines(int numLines); /** * Sets whether or not to draw a background area for the icon * * @arg draw true if a background should be drawn or not */ void setDrawBackground(bool draw); /** * @return true if a background area is to be drawn for the icon */ bool drawBackground() const; /** * reimplemented from QGraphicsItem */ QPainterPath shape() const; public Q_SLOTS: /** * Sets the appearance of the icon to pressed or restores the appearance * to normal. This does not simulate a mouse button press. * @param pressed whether to appear as pressed (true) or as normal (false) */ void setPressed(bool pressed = true); /** * Shortcut for setPressed(false) */ void setUnpressed(); protected: void paintWidget(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); Q_SIGNALS: /** * Indicates when the icon has been pressed. */ void pressed(bool down); /** * Indicates when the icon has been clicked. */ void clicked(); /** * Indicates when the icon has been double-clicked */ void doubleClicked(); /** * Indicates when the icon has been activated following the single * or doubleclick settings */ void activated(); protected: bool isDown(); void mousePressEvent(QGraphicsSceneMouseEvent *event); void mouseMoveEvent(QGraphicsSceneMouseEvent *event); void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); void hoverEnterEvent(QGraphicsSceneHoverEvent *event); void hoverLeaveEvent(QGraphicsSceneHoverEvent *event); public: class Private; /** * @internal **/ void drawActionButtonBase(QPainter* painter, const QSize &size, int element); private: void init(); void layoutIcons(const QStyleOptionGraphicsItem *option); void hoverEffect(bool); Private * const d; private Q_SLOTS: void actionDestroyed(QObject* obj); void readColors(); void hoverAnimationUpdate(qreal progress); }; } // namespace Plasma /* // Add these to UrlIcon void setUrl(const KUrl& url); KUrl url() const; */ #endif