blob: 7a4330b92db4aedb5a368a3af91a2a29d1dc597e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\page svgrendering.html
\title Rendering SVG Files
\brief Rendering SVG files with the Qt SVG module
Qt SVG provides classes for rendering SVG files. To include the definitions
of the module's classes, use the following directive:
\snippet doc_src_qtsvg.cpp 0
To link against the module, add this line to your \l qmake \c
.pro file:
\snippet doc_src_qtsvg.pro 1
\section1 Rendering SVG Files
Scalable Vector Graphics (SVG) is a language for describing two-dimensional
graphics and graphical applications in XML. SVG 1.1 is a W3C Recommendation
and forms the core of the current SVG developments in Qt. SVG 1.2 is the
specification currently being developed by the \l{SVG Working Group}, and it
is \l{http://www.w3.org/TR/SVG12/}{available in draft form}. The \l{Mobile
SVG Profiles} (SVG Basic and SVG Tiny) are aimed at resource-limited devices
and are part of the 3GPP platform for third generation mobile phones. You
can read more about SVG at \l{About SVG}.
Qt supports the \l{SVG 1.2 Tiny Static Features}{static features} of
\l{http://www.w3.org/TR/SVGMobile12}{SVG 1.2 Tiny}. ECMA scripts and DOM manipulation are currently not
supported.
SVG drawings can be rendered onto any QPaintDevice subclass. This
approach gives developers the flexibility to experiment, in order
to find the best solution for each application.
The easiest way to render SVG files is to construct a QSvgWidget and
load an SVG file using one of the QSvgWidget::load() functions.
QSvgRenderer is the class responsible for rendering SVG files for
QSvgWidget, and it can be used directly to provide SVG support for
custom widgets.
To load an SVG file, construct a QSvgRenderer with a file name or the
contents of a file, or call QSvgRenderer::load() on an existing
renderer. If the SVG file has been loaded successfully the
QSvgRenderer::isValid() will return true.
Once you have loaded the SVG file successfully, you can render it
with the QSvgRenderer::render() function. Note that this scheme allows
you to render SVG files on all paint devices supported by Qt, including
QWidget, QGLWidget, and QImage. See the \l{SVG Viewer Example}{SVG Viewer}
example for more details.
*/
|
