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authorSimon Hausmann <simon.hausmann@theqtcompany.com>2014-11-29 09:55:50 +0100
committerJani Heikkinen <jani.heikkinen@theqtcompany.com>2014-12-02 09:56:19 +0100
commitd40fcf19f7768e6ae80532ff3d8a416132594f87 (patch)
tree4b472eab344d759984c711565c11827618668873 /dist
parent1eedf91fcde959f5ac799f339384f44c6a9d0fd9 (diff)
Added change log for 5.4.0
Change-Id: Ie3e238a3ccac1d95978229316977d131be3010d6 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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+Qt 5.4 introduces many new features and improvements as well as bugfixes
+over the 5.3.x series. For more details, refer to the online documentation
+included in this distribution. The documentation is also available online:
+
+ http://qt-project.org/doc/qt-5
+
+The Qt version 5.4 series is binary compatible with the 5.3.x series.
+Applications compiled for 5.3 will continue to run with 5.4.
+
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+
+ http://bugreports.qt-project.org/
+
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+
+****************************************************************************
+* General *
+****************************************************************************
+
+General Improvements
+--------------------
+
+ - The Declarative State Machine Framework extends Qt's State Machine
+ Framework (QSM) into QML. This gives you the power of deterministic
+ state machines, but declaratively.
+
+ - Added QML linter tool.
+
+Third party components
+----------------------
+
+****************************************************************************
+* Important Behavior Changes *
+****************************************************************************
+
+ - [QTBUG-40431] When a JavaScript object/array is passed to C++ through
+ a QVariant, the engine no longer immediately converts the object
+ recursively into a QVariantMap or QVariantList but instead stores a
+ QJSValue in the QVariant. This prevents a loss of data when the JS
+ object contains non-primitive types such as function objects for
+ example. Code that expects the variant type to be exactly
+ QVariant::Map or QVariant::List may need to be adapted. Registered
+ conversion functions however ensure that code that merely calls
+ toMap() or toList() continues to work.
+ - [QTBUG-39971] Qt 5.3 changed the mapping of "var" parameters in QML
+ declared signals to QJSValue. This was reverted to the behavior of
+ earlier Qt versions to use QVariant. The original issue of not being
+ able to pass function objects through var parameters of QML declared
+ signals is solved by wrapping a QJSValue inside the QVariant.
+
+
+
+****************************************************************************
+* Library *
+****************************************************************************
+
+QtQml
+-----
+
+ - qmldir:
+ [QTBUG-41489] added the ability to declare dependencies on other
+ modules in a module definition qmldir file
+
+
+QtQuick
+-------
+
+ - Accessibility for Qt Quick is now included in the qtquick library
+ instead of being a separate plugin.
+ - QQuickWindow will compresses touch events and delivers at most one touch
+ event per frame.
+ - [QTBUG-38539] Added property MouseArea.drag.smoothed for toggling
+ whether the drag target is moved to the current mouse position after a
+ drag operation has started.
+ - [QTBUG-37944] Introduced QQuickRenderControl as a public API.
+ - [QTBUG-37589] Added QQuickWidget::grabFramebuffer() for capturing the
+ content into a QImage.
+ - tools and examples consistently use the QtProject organization name
+ - [QTBUG-40130] Add containsPress property to MouseArea
+ - Added QQuickFontMetrics, which provides a subset of QFontMetricsF's API.
+ - Added QQuickTextMetrics, which provides a declarative API for the
+ functions in QFontMetricsF which take arguments.
+ - Introduced OpenGLInfo attached type that provides information about the
+ currently used OpenGL version.
+ - Images exceeding GL_MAX_TEXTURE_SIZE will be downscaled to fit so they
+ will still show.
+ - [QTBUG-42096] Fixed nodes sometimes disappearing when adding many new
+ nodes to the tree.
+
+ - Canvas:
+ * Implement antialiasing on FramebufferObject based render targets
+ through super-sampling (SSAA) when framebuffer multisampling is not
+ available.
+
+ - Important Behavior Changes:
+ * Drag and Drop events now propagate to child items before their
+ parents.
+ * [QTBUG-40329] TextInput::displayText now includes also partial input
+ from an input method and thus matches with the actual displayed text.
+
+ - Item:
+ * Added functions QQuickItem::grabToImage() and Item::grabToImage() to
+ allow grabbing of items into system-memory images.
+ * When Item.opacity is set to a value outside the range of 0 to 1, it
+ will be clamped.
+
+ - ListView:
+ * Introduced headerPositioning and footerPositioning properties to
+ control whether header and footer are positioned inline, as overlays,
+ or so that they slide away and can be pulled back regardless of the
+ content position.
+
+ - QQuickItem:
+ * Added signals sceneGraphInitialized and sceneGraphInvalidated
+
+ - QQuickWindow:
+ * Added QQuickWindow::scheduleRenderJob(), a convenience alternative to
+ the equivalent signals for one-shot tasks.
+
+ - SceneGraph:
+ * There might not be an OpenGL context bound when
+ QQuickWindow::sceneGraphInvalidated() is emitted if an error occurs
+ while cleaning up the scene graph (such as EGL_CONTEXT_LOST). This is
+ according to the documentation, but has never occurred in practice
+ before.
+
+ - TextInput:
+ * Added passwordMaskDelay property
+ * [QTBUG-38934] Added TextInput::ensureVisible(int pos) method to be
+ able to control the scrolling position of a TextInput that has
+ automatic scrolling enabled.
+
+ - Window:
+ * Added Item.Window attached property
+
+QtQuick.Dialogs
+---------------
+
+ - [QTBUG-39365] FontDialog: support keyboard navigation
+ - [QTBUG-39231] FileDialog: added sidebarVisible property and button
+
+