mirror of
https://github.com/amyinspace/MagicSetEditor2.git
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twanvl
a234b24728
git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@559 0fc631ac-6414-0410-93d0-97cfa31319b6
85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
//+----------------------------------------------------------------------------+
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//| Description: Magic Set Editor - Program to make Magic (tm) cards |
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//| Copyright: (C) 2001 - 2007 Twan van Laarhoven |
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//| License: GNU General Public License 2 or later (see file COPYING) |
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//+----------------------------------------------------------------------------+
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#ifndef HEADER_UTIL_IO_PACKAGE_MANAGER
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#define HEADER_UTIL_IO_PACKAGE_MANAGER
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// ----------------------------------------------------------------------------- : Includes
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#include <util/prec.hpp>
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#include <util/io/package.hpp>
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#include <wx/filename.h>
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DECLARE_POINTER_TYPE(Packaged);
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class PackageDependency;
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// ----------------------------------------------------------------------------- : PackageManager
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/// Package manager, loads data files from the default data directory
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/** The PackageManager ensures that each package is only loaded once.
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* There is a single global instance of the PackageManager, called packages
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*/
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class PackageManager {
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public:
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/// Initialize the package manager
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void init();
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/// Empty the list of packages.
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/** This function MUST be called before the program terminates, otherwise
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* we could get into fights with pool allocators used by ScriptValues */
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void destroy();
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/// Open a package with the specified name (including extension)
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template <typename T>
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intrusive_ptr<T> open(const String& name) {
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wxFileName loc(local_data_directory + _("/") + name);
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loc.Normalize();
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String filename = loc.GetFullPath();
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if (!wxFileExists(filename) && !wxDirExists(filename)) {
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wxFileName glob(global_data_directory + _("/") + name);
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glob.Normalize();
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filename = glob.GetFullPath();
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}
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// Is this package already loaded?
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PackagedP& p = loaded_packages[filename];
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intrusive_ptr<T> typedP = dynamic_pointer_cast<T>(p);
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if (typedP) {
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typedP->loadFully();
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return typedP;
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} else {
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// not loaded, or loaded with wrong type (i.e. with just_header)
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p = typedP = new_intrusive<T>();
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typedP->open(filename);
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return typedP;
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}
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}
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/// Open a package with the specified name, the type of package is determined by its extension!
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/** @param if just_header is true, then the package is not fully parsed.
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*/
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PackagedP openAny(const String& name, bool just_header = false);
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/// Find all packages that match a filename pattern, store them in out
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/** Only reads the package headers */
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void findMatching(const String& pattern, vector<PackagedP>& out);
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/// Open a file from a package, with a name encoded as "package/file"
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InputStreamP openFileFromPackage(const String& name);
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/// Check if the given dependency is currently installed
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bool checkDependency(const PackageDependency& dep, bool report_errors = false);
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private:
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map<String, PackagedP> loaded_packages;
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String global_data_directory;
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String local_data_directory;
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};
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/// The global PackageManager instance
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extern PackageManager packages;
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// ----------------------------------------------------------------------------- : EOF
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#endif
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