在Qt中获取qrc文件的路径 [英] Getting paths of qrc files in Qt
问题描述
我想知道如何访问qrc文件中的文件的路径,以便将它们用作数组中的字符串。
qrc文件的示例是:
<!DOCTYPE RCC>< RCC version =1.0> ;
< qresource prefix =>
< file> images / 1.jpg< / file>
< file> images / 2.jpg< / file>
< file> images / 3.jpg< / file>
< file> images / 4.jpg< / file>
< / qresource>
< / RCC>
我想以下列方式使用它:
for(int i = 0; i <4; i ++)
{
path = image_path [i]
}
其中path是稍后可用于访问各个图像的qlist。
似乎有一个简单的方法使用 QDirIterator 。
如果您有一个名为:的目录,在当前工作目录中,并且期望将来进行解析。无论如何,现在不应该是一个问题。
QStringList imageFileList;
QDirIterator dirIterator(:,QDirIterator :: Subdirectories);
while(dirIterator.hasNext()){
QFileInfo fileInfo = it.fileInfo();
if(fileInfo.isFile())//不要向列表中添加目录
imageFileList.append(it.next());
}
或者,这需要相当多的参与,但我认为它工作。恐怕没有更方便的方式写这篇文章。
main.qrc
<!DOCTYPE RCC>< RCC version =1.0>
< qresource prefix =>
< file> images / 1.jpg< / file>
< file> images / 2.jpg< / file>
< file> images / 3.jpg< / file>
< file> images / 4.jpg< / file>
< / qresource>
< / RCC>
main.cpp
<
#include< QXmlStreamReader>
#include< QString>
#include< QFile>
#include
int main()
{
QTextStream standardOutput(stdout);
QFile文件(main.qrc);
if(!file.open(QIODevice :: ReadOnly | QIODevice :: Text)){
standardOutput< 文件打开错误:< file.errorString()<< \\\
;
return 1;
}
QXmlStreamReader inputStream(& file);
while(!inputStream.atEnd()&&!inputStream.hasError()){
inputStream.readNext();
if(inputStream.isStartElement()){
QString name = inputStream.name()。toString();
if(name ==file)
standardOutput<< file::/< inputStream.readElementText()<< \\\
;
}
}
return 0;
}
main.pro
TEMPLATE = app
TARGET = main
QT = core
SOURCES + = main.cpp
构建并运行
qmake&制作&& ./main
输出
file::/images/1.jpg
file::/images/2.jpg
file::/images/3.jpg
file::/ images / 4.jpg
I want to know how to access the paths of files in the qrc file in order to use them as strings in an array. An example of qrc file is:
<!DOCTYPE RCC><RCC version="1.0">
<qresource prefix="">
<file>images/1.jpg</file>
<file>images/2.jpg</file>
<file>images/3.jpg</file>
<file>images/4.jpg</file>
</qresource>
</RCC>
I want to use it in the following manner:
for(int i=0;i<4;i++)
{
path=image_path[i];
}
where path is an qlist that can be later used for accessing the respective images.
There seems to be a simple way of doing it using QDirIterator.
It might break if you have a directory called ":" in the current working directory and you expect that to be parsed instead in the future. Anyhow, that should not be a concern for now.
QStringList imageFileList;
QDirIterator dirIterator(":", QDirIterator::Subdirectories);
while (dirIterator.hasNext()) {
QFileInfo fileInfo = it.fileInfo();
if (fileInfo.isFile()) // Do not add directories to the list
imageFileList.append(it.next());
}
Alternatively, this requires quite a bit of involvement, but I think it works. I am afraid there is no more convenient way as of writing this.
main.qrc
<!DOCTYPE RCC><RCC version="1.0">
<qresource prefix="">
<file>images/1.jpg</file>
<file>images/2.jpg</file>
<file>images/3.jpg</file>
<file>images/4.jpg</file>
</qresource>
</RCC>
main.cpp
#include <QXmlStreamReader>
#include <QString>
#include <QFile>
#include <QTextStream>
int main()
{
QTextStream standardOutput(stdout);
QFile file("main.qrc");
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
standardOutput << "File open error:" << file.errorString() << "\n";
return 1;
}
QXmlStreamReader inputStream(&file);
while (!inputStream.atEnd() && !inputStream.hasError()) {
inputStream.readNext();
if (inputStream.isStartElement()) {
QString name = inputStream.name().toString();
if (name == "file")
standardOutput << "file: :/" << inputStream.readElementText() << "\n";
}
}
return 0;
}
main.pro
TEMPLATE = app
TARGET = main
QT = core
SOURCES += main.cpp
Build and Run
qmake && make && ./main
Output
file: :/images/1.jpg
file: :/images/2.jpg
file: :/images/3.jpg
file: :/images/4.jpg
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