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authorChris Adams <christopher.adams@nokia.com>2012-07-17 12:19:31 +1000
committerQt by Nokia <qt-info@nokia.com>2012-07-19 10:02:40 +0200
commitb523301a668e6c6cc5fc93440842ad063066f12b (patch)
tree236d84bdd510a7d64f6a5cc08699da2ecd0246be /src/quick/doc/src/concepts
parent9fe378497773dc2b8682b8c49375c7d913de5f8d (diff)
Add documentation about property value modifiers
Previously, property value modifiers were only documented in QtQuick, when really they are a QtQml module / QML language feature. This commit also improves the QtQuick documentation for convenience types, and rearranges some links and content for improved consistency. Change-Id: Ic4dbe0b8bb85bdfbb8ac2f336c13c2960f8d1842 Reviewed-by: Bea Lam <bea.lam@nokia.com>
Diffstat (limited to 'src/quick/doc/src/concepts')
-rw-r--r--src/quick/doc/src/concepts/convenience/topic.qdoc87
-rw-r--r--src/quick/doc/src/concepts/dynamicinstantiation/topic.qdoc48
-rw-r--r--src/quick/doc/src/concepts/eventinterceptors/topic.qdoc69
-rw-r--r--src/quick/doc/src/concepts/statesanimations/topic.qdoc30
4 files changed, 105 insertions, 129 deletions
diff --git a/src/quick/doc/src/concepts/convenience/topic.qdoc b/src/quick/doc/src/concepts/convenience/topic.qdoc
new file mode 100644
index 0000000000..ad70b9a990
--- /dev/null
+++ b/src/quick/doc/src/concepts/convenience/topic.qdoc
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** GNU Free Documentation License
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms
+** and conditions contained in a signed written agreement between you
+** and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+\page qtquick-convenience-topic.html
+\title Important Concepts In Qt Quick - Convenience Types
+\brief Overview of the convenience types for QML core features
+
+In a highly dynamic user interface, the application developer will often wish
+to react to events and trigger various response logic. QML has built-in
+support for these concepts through bindings, signals and signal handlers, and
+dynamic object instantiation, but Qt Quick expands upon the support
+provided by the language with various convenience types.
+
+\section1 Dynamic Object Instantiation
+
+QML provides a number of ways to dynamically create and manage QML objects.
+
+Objects can be created dynamically from within imperative JavaScript code
+in various ways. See \l{qtqml-javascript-dynamicobjectcreation.html}
+{Dynamic QML object creation from JavaScript} for more details.
+
+Qt Quick provides the \l{Loader}, \l{Repeater}, \l{ListView}, \l{GridView} and
+\l{PathView} types which also support dynamic object management, and provide
+a declarative API.
+
+Please see the \l{qtquick-performance.html}{performance guide} for more
+information on using dynamic instantiation and lazy initialization to improve
+application performance.
+
+\section1 Dynamic Bindings
+
+Assigning binding expressions to properties is a fundamental concept of QML,
+and Qt Quick extends upon the idea with the \l Binding type. While bindings
+are typically specified as property initialization assignments, the \l Binding
+type allows the target of a binding to be defined explicitly and separately
+from the definition of the binding expression itself.
+By declaring a \l Binding instance, the client can dynamically bind properties
+from arbitrary objects at run-time, and can modify the binding target when
+required (or when it becomes available).
+
+\section1 Dynamic Signal Connections
+
+QML supports dynamic signal connections through a signal's \c{connect()}
+method. The QtQuick module provides the convenience \l Connections type which
+allows setting up a signal connection involving an object which isn't part of
+the static object hierarchy. It also allows the connection to be dynamically
+retargeted at runtime, which allows an application to process different signal
+notifications with different functions depending on the program state.
+
+By declaring a \l Connections instance, the client can dynamically cause
+signals emitted by one object to trigger methods of another object, and can
+modify the connection target when required (or when it becomes available).
+
+\section1 Timer-Based Events
+
+Another common use-case is to trigger functionality some specified period of
+time after a particular event occurs. These sort of timer-based triggers are
+supported in Qt Quick through the \l Timer type. Both single-shot and
+recurring timers are supported.
+
+*/
+
diff --git a/src/quick/doc/src/concepts/dynamicinstantiation/topic.qdoc b/src/quick/doc/src/concepts/dynamicinstantiation/topic.qdoc
deleted file mode 100644
index 4040a63655..0000000000
--- a/src/quick/doc/src/concepts/dynamicinstantiation/topic.qdoc
+++ /dev/null
@@ -1,48 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** GNU Free Documentation License
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms
-** and conditions contained in a signed written agreement between you
-** and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-\page qtquick-dynamicinstantiation-topic.html
-\title Important Concepts In Qt Quick - Dynamic and Lazy Instantiation
-\brief Overview of the dynamic and lazy instantiation concepts
-
-QML provides a number of ways to dynamically create and manage QML objects.
-The \l{Loader}, \l{Repeater}, \l{ListView}, \l{GridView} and \l{PathView} elements
-all support dynamic object management.
-
-Objects can be created and deleted at runtime from JavaScript code. See
-\l{qtqml-javascript-dynamicobjectcreation.html}{Dynamic QML object creation from JavaScript}
-for more details.
-
-Qt Quick also provides the Loader type which may be used in conjuction with a
-Component or a QML document to instantiate objects lazily and on-demand.
-Please see the \l{qtquick-performance.html}{performance guide} for more
-information on using dynamic instantiation and lazy initialization to improve
-application performance.
-
-*/
-
diff --git a/src/quick/doc/src/concepts/eventinterceptors/topic.qdoc b/src/quick/doc/src/concepts/eventinterceptors/topic.qdoc
deleted file mode 100644
index f6d2e7fe14..0000000000
--- a/src/quick/doc/src/concepts/eventinterceptors/topic.qdoc
+++ /dev/null
@@ -1,69 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** GNU Free Documentation License
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms
-** and conditions contained in a signed written agreement between you
-** and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-\page qtquick-eventinterceptors-topic.html
-\title Important Concepts In Qt Quick - Event Interceptors
-\brief Overview of event interceptor concepts
-
-In a highly dynamic user-interface, the application developer will often wish
-to intercept some events (such as property assignments) so that the change can
-be animated. Interceptors are a first-class concept in Qt Quick, and
-application developers can dynamically intercept property assignments and
-signal emissions, and define dynamic bindings.
-
-\section1 Animating Property Assignments
-
-When the location of a visual item changes, it is often suboptimal to simply
-change the location instantaneously. It may be better to animate the update
-to allow the user's eye to follow the change, thus providing a seamless
-user-experience. See the documentation on
-\l{qtquick-concepts-interceptors.html#animating-property-assignments}
-{Animating Property Assignments} for more information about property assignment
-interception.
-
-\section1 Dynamic Bindings
-
-Assigning binding expressions to properties is a fundamental concept of QML,
-and Qt Quick extends upon the idea with dynamic bindings where the target of
-the binding can be defined outside of the binding expression itself. See the
-\l{qtquick-concepts-interceptors.html#dynamic-bindings}{Dynamic Bindings} page
-for more information about this concept.
-
-\section1 Dynamic Signal Connections
-
-Just as bindings can be retargeted dynamically in Qt Quick, so too can signal
-connections. This allows highly dynamic dispatch to be implemented in a user
-interface where different visual items need to handle different events,
-depending on the situation, at run-time. See the documentation about
-\l{qtquick-concepts-interceptors.html#dynamic-signal-connections}
-{Dynamic Signal Connections} for in-depth information.
-
-\section1 Timer-Based Events
-
-*/
-
diff --git a/src/quick/doc/src/concepts/statesanimations/topic.qdoc b/src/quick/doc/src/concepts/statesanimations/topic.qdoc
index 8ca02fd444..25b0958162 100644
--- a/src/quick/doc/src/concepts/statesanimations/topic.qdoc
+++ b/src/quick/doc/src/concepts/statesanimations/topic.qdoc
@@ -89,22 +89,28 @@ and transition elements. See the documentation on
{Animations and Transitions In Qt Quick} for information about these elements
and how to use them.
-Animations are not only related to states and transitions between states; for
+
+\section1 Animating Property Assignments
+
+Animations are not only related to states and transitions between states. For
example, an animation might be triggered by other events, which are not
-associated with a distinct state. It is often beneficial to always animate
-changes to certain properties of visual items, regardless of the cause of the
-change (for example, opacity effects).
+associated with a distinct state.
+
+It is often beneficial to always animate changes to certain properties of
+visual items, regardless of the cause of the change (for example, opacity
+effects). Qt Quick provides the \l Behavior type which allows the client to
+specify animation behavior for changes to properties. The \l Behavior type
+is an example of a QML object
+\l{qtqml-typesystem-topic.html#property-modifier-types}{property modifier}.
-This type of animation is supported in Qt Quick with the \c{Behavior} element
-through the \tt{"Behavior on <Property>"} syntax. Please see the documentation
-about
+Please see the documentation about
\l{qtquick-statesanimations-animations.html#default-animation-as-behaviors}
-{default property animation behaviors} for more information about the Behavior
-element and how to use it.
+{default property animations} for more information about using the \l Behavior
+element to provide default property change animations.
-It is important to note, however, that using default property animations
-(using Behavior elements) as well as state-transition animations can sometimes
-results in undefined behavior occurring. Please see the documentation about
+It is important to note, that using default property animations (via the
+\l Behavior type) in combination with state-transition animations can sometimes
+result in undefined behavior occurring. Please see the documentation about
\l{qtquick-statesanimations-behaviors.html}
{using Qt Quick Behaviors with States} for more information about this topic.