150 lines
5.9 KiB
C++
150 lines
5.9 KiB
C++
/*
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* Copyright 2005 by 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_DEFS_H
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#define PLASMA_DEFS_H
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#include <QtGui/QGraphicsItem>
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#include <QtGui/QPainterPath>
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#include <plasma/plasma_export.h>
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/**
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* Namespace for everything in libplasma
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*/
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namespace Plasma
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{
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/**
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* The Constriants enumeration lists the various constraints that Plasma
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* objects have managed for them and which they may wish to react to,
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* for instance in Applet::constraintsUpdated
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*/
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enum Constraint { NoConstraint = 0,
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FormFactorConstraint = 1 /** The FormFactor for an object */,
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LocationConstraint = 2 /** The Location of an object */,
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ScreenConstraint = 4 /** Which screen an object is on */,
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AllConstraints = FormFactorConstraint | LocationConstraint | ScreenConstraint
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};
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Q_DECLARE_FLAGS(Constraints, Constraint)
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/**
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* The FormFactor enumeration describes how a Plasma::Applet should arrange
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* itself. The value is derived from the container managing the Applet
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* (e.g. in Plasma, a Corona on the desktop or on a panel).
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**/
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enum FormFactor { Planar = 0 /**< The applet lives in a plane and has two
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degrees of freedom to grow. Optimize for
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desktop, laptop or tablet usage: a high
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resolution screen 1-3 feet distant from the
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viewer. */,
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MediaCenter /**< As with Planar, the applet lives in a plane
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but the interface should be optimized for
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medium-to-high resolution screens that are
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5-15 feet distant from the viewer. Sometimes
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referred to as a "ten foot interface".*/,
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Horizontal /**< The applet is constrained vertically, but
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can expand horizontally. */,
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Vertical /**< The applet is contrained horizontally, but
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can expand vertically. */
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};
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/**
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* The Direction enumeration describes in which direction, relative to the
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* Applet (and its managing container), popup menus, expanders, balloons,
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* message boxes, arrows and other such visually associated widgets should
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* appear in. This is usually the oposite of the Location.
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**/
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enum Direction { Down = 0 /**< Display downards */ ,
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Up /**< Display upwards */,
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Left /**< Display to the left */,
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Right /**< Display to the right */
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};
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/**
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* The Location enumeration describes where on screen an element, such as an
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* Applet or its managing container, is positioned on the screen.
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**/
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enum Location { Floating = 0 /**< Free floating. Neither geometry or z-ordering
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is described precisely by this value. */,
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Desktop /**< On the planar desktop layer, extending across
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the full screen from edge to edge */,
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FullScreen /**< Full screen */,
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TopEdge /**< Along the top of the screen*/,
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BottomEdge /**< Along the bottom of the screen*/,
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LeftEdge /**< Along the left side of the screen */,
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RightEdge /**< Along the right side of the screen */
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};
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/**
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* The position enumeration
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*
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**/
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enum Position { LeftPositioned /**< Positioned left */,
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RightPositioned /**< Positioned right */,
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TopPositioned /**< Positioned top */,
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BottomPositioned /**< Positioned bottom */,
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CenterPositioned /**< Positioned in the center */
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};
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/**
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* Zoom levels that Plasma is aware of...
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**/
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enum ZoomLevel { DesktopZoom = 0 /**< Normal desktop usage, plasmoids are painted normally and have full interaction */,
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GroupZoom /**< Plasmoids are shown as icons in visual groups; drag and drop and limited context menu interaction only */ ,
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OverviewZoom /**< Groups become icons themselves */
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};
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/**
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* Possible timing alignments
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**/
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enum IntervalAlignment { NoAlignment = 0,
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AlignToMinute,
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AlignToHour };
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enum ItemTypes { AppletType = QGraphicsItem::UserType + 1,
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LineEditType = QGraphicsItem::UserType + 2
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};
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/**
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* @return the scaling factor (0..1) for a ZoomLevel
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**/
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PLASMA_EXPORT qreal scalingFactor(ZoomLevel level);
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/**
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* Converts a location to a direction. Handy for figuring out which way to send a popup based on
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* location or to point arrows and other directional items.
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*
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* @param location the location of the container the element will appear in
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* @reutrn the visual direction of the element should be oriented in
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**/
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PLASMA_EXPORT Direction locationToDirection(Location location);
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/**
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* Returns a nicely rounded rectanglular path for painting.
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*/
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PLASMA_EXPORT QPainterPath roundedRectangle(const QRectF& rect, qreal radius);
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} // Plasma namespace
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Q_DECLARE_OPERATORS_FOR_FLAGS(Plasma::Constraints)
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#endif // multiple inclusion guard
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