2046c01a29
it has optional buttons or can be shown/closed programmatically by the applet implementation svn path=/trunk/KDE/kdelibs/; revision=920367
276 lines
9.8 KiB
C++
276 lines
9.8 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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/** @header plasma/plasma.h <Plasma/Plasma> */
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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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class QGraphicsView;
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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 Constraint 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 {
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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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SizeConstraint = 8, /** the size of the applet was changed */
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ImmutableConstraint = 16, /** the immutability (locked) nature of the applet changed */
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StartupCompletedConstraint = 32, /** application startup has completed */
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ContextConstraint = 64, /** the desktop context has changed */
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AllConstraints = FormFactorConstraint | LocationConstraint | ScreenConstraint |
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SizeConstraint | ImmutableConstraint | ContextConstraint
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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 {
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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 constrained 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 {
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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 direction of a zoom action.
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*/
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enum ZoomDirection {
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ZoomIn = 0, /**< Zoom in one step */
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ZoomOut = 1 /**< Zoom out one step */
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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 {
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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 {
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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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* The popup position enumeration relatively to his attached widget
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*
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**/
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enum PopupPlacement {
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FloatingPopup = 0, /**< Free floating, non attached popup */
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TopPosedLeftAlignedPopup, /**< Popup positioned on the top, aligned
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to the left of the wigdet */
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TopPosedRightAlignedPopup, /**< Popup positioned on the top, aligned
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to the right of the widget */
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LeftPosedTopAlignedPopup, /**< Popup positioned on the left, aligned
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to the right of the wigdet */
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LeftPosedBottomAlignedPopup, /**< Popup positioned on the left, aligned
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to the bottom of the widget */
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BottomPosedLeftAlignedPopup, /**< Popup positioned on the bottom, aligned
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to the left of the wigdet */
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BottomPosedRightAlignedPopup, /**< Popup positioned on the bottom, aligned
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to the right of the widget */
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RightPosedTopAlignedPopup, /**< Popup positioned on the right, aligned
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to the top of the wigdet */
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RightPosedBottomAlignedPopup /**< Popup positioned on the right, aligned
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to the bottom of the widget */
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};
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/**
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* Flip enumeration
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*/
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enum FlipDirection {
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NoFlip = 0, /**< Do not flip */
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HorizontalFlip = 1, /**< Flip horizontally */
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VerticalFlip = 2 /**< Flip vertically */
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};
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Q_DECLARE_FLAGS(Flip, FlipDirection)
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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 {
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DesktopZoom = 0, /**< Normal desktop usage, plasmoids are painted normally
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and have full interaction */
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GroupZoom, /**< Plasmoids are shown as icons in visual groups; drag
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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 {
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NoAlignment = 0,
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AlignToMinute,
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AlignToHour
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};
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enum ItemTypes {
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AppletType = QGraphicsItem::UserType + 1,
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LineEditType = QGraphicsItem::UserType + 2
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};
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/**
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* Defines the immutability of items like applets, corona and containments
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* they can be free to modify, locked down by the user or locked down by the
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* system (e.g. kiosk setups).
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*/
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enum ImmutabilityType {
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Mutable = 1, /**< The item can be modified in any way **/
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UserImmutable = 2, /**< The user has requested a lock down, and can undo
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the lock down at any time **/
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SystemImmutable = 4 /**< the item is locked down by the system, the user
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can't unlock it **/
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};
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/**
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* Defines the aspect ratio used when scaling an applet
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*/
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enum AspectRatioMode {
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InvalidAspectRatioMode = -1, /**< Unsetted mode used for dev convenience
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when there is a need to store the
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aspectRatioMode somewhere */
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IgnoreAspectRatio = 0, /**< The applet can be freely resized */
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KeepAspectRatio = 1, /**< The applet keeps a fixed aspect ratio */
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Square = 2, /**< The applet is always a square */
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ConstrainedSquare = 3, /**< The applet is no wider (in horizontal
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formfactors) or no higher (in vertical
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ones) than a square */
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FixedSize = 4 /** The applet cannot be resized */
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};
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/**
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* The ComonentType enumeration refers to the various types of components,
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* or plugins, supported by plasma.
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*/
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enum ComponentType {
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AppletComponent = 1, /**< Plasma::Applet based plugins **/
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DataEngineComponent = 2, /**< Plasma::DataEngine based plugins **/
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RunnerComponent = 4, /**< Plasma::AbstractRunner based plugsin **/
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AnimatorComponent = 8, /**< Plasma::Animator based plugins **/
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ContainmentComponent = 16 /**< Plasma::Containment based plugins **/
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};
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Q_DECLARE_FLAGS(ComponentTypes, ComponentType)
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enum MarginEdge {
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TopMargin = 0,
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BottomMargin,
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LeftMargin,
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RightMargin
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};
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enum MessageButton {
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ButtonNone = 0,
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ButtonOk = 1,
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ButtonYes = 2,
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ButtonNo = 4,
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ButtonCancel = 8
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};
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Q_DECLARE_FLAGS(MessageButtons, MessageButton)
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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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* @return 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 the most appropriate QGraphicsView for the item.
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*
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* @arg item the QGraphicsItem to locate a view for
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* @return pointer to a view, or 0 if none was found
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*/
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PLASMA_EXPORT QGraphicsView *viewFor(const QGraphicsItem *item);
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} // Plasma namespace
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Q_DECLARE_OPERATORS_FOR_FLAGS(Plasma::Constraints)
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Q_DECLARE_OPERATORS_FOR_FLAGS(Plasma::Flip)
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Q_DECLARE_OPERATORS_FOR_FLAGS(Plasma::ComponentTypes)
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#endif // multiple inclusion guard
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