I need to display paths in the context menu in my app and need to find a way to shorted them. For instance, what Microsoft apps do in their "Recently Used" list, if the original path is c:\ClientName\ProjectName\ProgramName\ComponentName\SomeFileName.cpp I need it to be converted into something like c:\ClientName\...\SomeFileName.cpp.
So I'm curious if there's any built-in means to do this with C++/MFC or maybe a WinAPI?
Use PathCompacPathEx that will truncate a path by replacing path components with ellipses.
There is Win32 API to get short path name called GetShortPathName, read below. It may help.
http://msdn.microsoft.com/en-us/library/windows/desktop/aa364989(v=vs.85).aspx
Related
I am developing a plugin for MITK, which is a tookit for medical imaging. I want to access the full path of image that is loaded in the data manager.
There are properties of images like name, opacity, path etc.
I searched MITK documentation but I could not find any proper information related to that.
Can you please help me?
If you want to see the 'path' in the UI, you can use the Properties plugin, available in the MITK Workbench and in your own app if you decided to include it.
If you want to access the content of the 'path' property in the code, then you need a mitk::DataNode in the current scope, because properties are usually related to node.
std::string path;
node->GetStringProperty("path", path);
Note that this won't give you the full path though. For some reason, MITK decided to remove the extension in this property, thus giving something like D://Data/brain instead of the D://Data/brain.nii.gz that I wanted.
AFAIK, there's currently no 100% safe way to get the real full path in MITK, but one could easily search on the file system using path + ".*" and hoping that it returns only one result :)
The property is not on the DataNode but in the BaseData in it. There is a 'path' property there. You can see its value when right-click the image and selecting 'details'
I am trying to get the icon of an app (doesn't matter which one). I noticed Qt doesn't have something like GDesktopAppInfo and therefore I tried getting it through QSettings from /usr/share/applications/appname.desktop. That's already a problem, because the desktop file might not be there. Anyway, going further to extract the Icon key. Now I dunno how to find the url (notice that I need the url, sure I could make a QIcon, but I need to export it to QML, which would mean another QQuickImageProvider class, anyway, I don't wanna go that way). Is it possible, or is the aforementioned QQuickImageProvider my only solution?
Here is a little guide that might help you find your way. Keep one thing in mind: start with the basic case, get code running and extend it to more difficult cases later.
For now, lets assume the following:
.desktop file is in /usr/share/applications
App icon is in SVG or PNG format
App icon path is absolute
App name is lower case and does not contain whitespace
Input: App name "git-cola"
Read /usr/share/applications/git-cola.desktop
Use a QRegularExpression to get the Icon value
You get an absolute iconPath, e.g. /usr/share/git-cola/icons/git.svg
Have an invokable C++ function that exposes a QUrl to QML
In QML, set the source property of an Image to getIconUrl("Target App")
where 4. looks something like
QUrl MyClass::getIconUrl(QString appName)
{
// get iconPath from appName
return QUrl::​fromLocalFile(iconPath);
}
If things are running, you can add support for
Multiple .desktop locations (there might be a handful or so)
Add support for relative paths
Add support for XPM files
You can use QIcon::fromTheme(QString iconName) to find the icon. It works most of the time but it's not as reliable as gtk
QFileDialog::getExistingDirectory allows to select multiple directories but after return the string is empty. How to make it to have those selected directories stored either in QString or QStringList (preferred).
Looking at the docs for QFileDialog::getExistingDirectory(.....), it doesn't state anywhere that it can return multiple directories.
This is a convenience static function that will return an existing
directory selected by the user.
The dialog shouldn't allow multiple selection; it's a bug: https://bugreports.qt-project.org/browse/QTBUG-21372
Unfortunately QFileDialog doesn't seem to support what you want to do (even if you create an instance of it rather than using the static method). I presume you're on Windows, as it's the native Windows dialog that supports (erroneously in this case) the multiple directory selection. If you don't care about running on other platforms, you could look at qfiledialog_win.cpp, specifically qt_win_CID_get_existing_directory(), and adapt that to your purposes.
It is hard to help you, when we can't see your code.
Try to look here, if you are using it the right way:
http://www.developer.nokia.com/Community/Wiki/How_to_use_QDir_and_QFileDialog_in_Qt
This has been driving me crazy all day.
I need to get a font filename (eg. Arial.ttf) based on its name (Arial in this case) and whether it is bold, italic or both. Using those pieces of information, I need to find the font file so I can use it for rendering.
Some more examples:
Calibri, Bold would resolve to calibrib.ttf.
Calibri, Italic would resolve to calibrii.ttf.
Any ideas on how I could achieve this in C++ (Win32)
First, to my knowledge, there is no reliable way to do that.
The Windows API deals with font families and mappings, not with font files, which are dealt with at a lower level. Also note that even if you manage to get the file name of a font, no rendering function (that I know of) will accept it, so what will you do with it?
That said, you can look in the registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Fonts in order to obtain the file name of a font from its logical name. An implementation of that solution can be found here.
Related to the earlier posts, this seems to be a reliable way:
1) Read the registered Windows font list from
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Fonts\
You will obtain file names and alternate file paths here.
The Font names are not useful as they can change with user's locale.
2) Load the TrueType files (.ttf, .ttc, .otf):
Use FreeType https://www.freetype.org/). Just initialize the freetype library and load face with FT_New_Face(library, path, 0, &face).
3) Obtain the font Family name using FreeType.
Use FT_Get_Sfnt_Name_Count() and FT_Get_Sfnt_Name() to obtain the string table.
You will need to check if the encoding is Ansi, UTF16 or other, as some strings will be in multiple different languages and encodings.
4) Obtain the OS2 TrueType properties.
Use (TT_OS2 *) FT_Get_Sfnt_Table (face, ft_sfnt_os2) to get the OS2 structure.
Interpret the structure using docs like https://www.microsoft.com/typography/otspec/os2.htm#fc
5) Now you have font file path, family name, style properties and other information. Build a list of these and function to search for a file based on font family and style.
This Code Project project does what you want. As-is it fails on Windows 7 because the GetWinVer function stops at XP. It is trivial to add the case for Windows 7.
You normally do this by calling CreateFontIndirect and then getting the system to render. Perhaps you could explain why you can't use this standard approach.
One solution would be to access the font files and extract the name from the name table to create your own lookup (an STL map would be a simple way of doing that). Details of the TTF file format can be found here.
I have an LPTSTR for a file path, i.e. C:\Program Files\Ahoy. I would like to convert it to a file:// URL that I can pass to ShellExecute in order to start the system's default browser pointing at the file. I don't want to give the path to ShellExecute directly since file associations may result in it being opened by something other than a web browser. The path is arbitrary, and may contain characters that need to be escaped.
Is there an existing library function, along the lines of Python's urllib.pathname2url, that does this translation? This can be done via the Uri class in .NET, but I haven't found anything for plain win32.
There's the UrlCreateFromPath API:
http://msdn.microsoft.com/en-us/library/bb773773%28VS.85%29.aspx
There's an entire path handling library within Win32. It's called Shell Path Handling Functions.
Surely it just comes down to replacing the "\" with "/" and adding file:// on the front??