Fix bug 2195: Slowness in rendering inside insets, especially on the Mac

[lyx.git] / src / LaTeXFeatures.h

diff --git a/src/LaTeXFeatures.h b/src/LaTeXFeatures.h
index c3d62de312b60008994785b162e7b917d799c597..0b4d6cd0ec60145878e52d1ff046032d3473d7fa 100644 (file)
--- a/src/LaTeXFeatures.h
+++ b/src/LaTeXFeatures.h
@@ -21,21 +21,21 @@
 
 class Buffer;
 class BufferParams;
-struct Language;
+class Language;
 
 /** The packages and commands that a buffer needs. This class
-    contains a list<string>.  Each of the LaTeX packages that a buffer needs
-    should be added with void require(string const & name).
-
-    i.e require("amssymb")
-
-    To add support you should only need to require() the package name as
-    packages which don't have special requirements are handled automatically.
-    If your new package does need special consideration you'll need to alter
-    string const getPackages() const;
-    Remember to update the validate function in buffer.C and paragraph.C
-    when you do so.
-*/
+ *  contains a list<string>.  Each of the LaTeX packages that a buffer needs
+ *  should be added with void require(string const & name).
+ *
+ *  i.e require("amssymb")
+ *
+ *  To add support you should only need to require() the package name as
+ *  packages which don't have special requirements are handled automatically.
+ *  If your new package does need special consideration you'll need to alter
+ *  string const getPackages() const;
+ *  Remember to update the validate function in buffer.C and paragraph.C
+ *  when you do so.
+ */
 class LaTeXFeatures {
 public:
        ///
@@ -62,8 +62,12 @@ public:
        void addExternalPreamble(std::string const &);
        /// Provide a string name-space to the requirements
        void require(std::string const & name);
+       /// Which of the required packages are installed?
+       static void getAvailable();
        /// Is the package required?
        bool isRequired(std::string const & name) const;
+       /// Is the (required) package available?
+       bool isAvailable(std::string const & name) const;
        ///
        void useFloat(std::string const & name);
        ///
@@ -79,6 +83,8 @@ public:
        ///
        Buffer const & buffer() const;
        ///
+       void setBuffer(Buffer const &);
+       ///
        BufferParams const & bufferParams() const;
        /// the return value is dependent upon both LyXRC and LaTeXFeatures.
        bool useBabel() const;
@@ -94,6 +100,10 @@ private:
        FeaturesList features_;
        ///
        FeaturesList preamble_snippets_;
+       /// The available (required) packages
+       typedef std::list<std::string> PackagesList;
+       ///
+       static PackagesList packages_;
        ///
        typedef std::set<Language const *> LanguageList;
        ///
@@ -106,8 +116,12 @@ private:
        typedef std::map<std::string , std::string> FileMap;
        ///
        FileMap IncludedFiles_;
-       ///
-       Buffer const & buffer_;
+       /** Buffer of the file being processed.
+        *  This may be a child buffer of the to-be-exported file and
+        *  therefore may not be the buffer that belongs to params_.
+        *  Only needed by InsetInclude::validate().
+        */
+       Buffer const * buffer_;
        ///
        BufferParams const & params_;
        /** If we are writing a nice LaTeX file or not.