Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / guicast / bchash.h

diff --git a/cinelerra-5.1/guicast/bchash.h b/cinelerra-5.1/guicast/bchash.h
new file mode 100644 (file)
index 0000000..36c4a4a
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+++ b/cinelerra-5.1/guicast/bchash.h
@@ -0,0 +1,97 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef BCHASH_H
+#define BCHASH_H
+
+
+
+// Key/value table with persistent storage in stringfiles.
+
+
+#include "bcwindowbase.inc"
+#include "bctextbox.inc"
+#include "units.h"
+
+
+class BC_Hash
+{
+public:
+       BC_Hash();
+       BC_Hash(const char *filename);
+       virtual ~BC_Hash();
+
+       int load_file(FILE *fp);
+       int load();        // load from disk file
+       int save_file(FILE *fp);
+       int save();        // save to disk file
+       int load_string(const char *string);        // load from string
+       int save_string(char* &string);       // save to new string
+       int update(const char *name, double value); // update a value if it exists
+       int update(const char *name, float value); // update a value if it exists
+       int update(const char *name, int32_t value); // update a value if it exists
+       int update(const char *name, int64_t value); // update a value if it exists
+       int update(const char *name, const char *value); // create it if it doesn't
+
+       double get(const char *name, double default_);   // retrieve a value if it exists
+       float get(const char *name, float default_);   // retrieve a value if it exists
+       int32_t get(const char *name, int32_t default_);   // retrieve a value if it exists
+       int64_t get(const char *name, int64_t default_);   // retrieve a value if it exists
+       char* get(const char *name, char *default_); // return 1 if it doesn't
+
+// same as above using vararg format to specify name
+       int updatef(double value, const char *fmt, ...);
+       int updatef(float value, const char *fmt, ...);
+       int updatef(int32_t value, const char *fmt, ...);
+       int updatef(int64_t value, const char *fmt, ...);
+       int updatef(const char *value, const char *fmt, ...);
+
+       double getf(double default_, const char *fmt, ...);
+       float getf(float default_, const char *fmt, ...);
+       int32_t getf(int32_t default_, const char *fmt, ...);
+       int64_t getf(int64_t default_, const char *fmt, ...);
+       char* getf(char *default_, const char *fmt, ...);
+
+// Update values with values from another table.
+// Adds values that don't exist and updates existing values.
+       void copy_from(BC_Hash *src);
+// Return 1 if the tables are equivalent
+       int equivalent(BC_Hash *src);
+
+       void dump();
+
+       int size();
+       char* get_key(int number);
+       char* get_value(int number);
+       void clear();
+
+private:
+// Reallocate table so at least total entries exist
+       void reallocate_table(int total);
+
+       char **names;  // list of string names
+       char **values;    // list of values
+       int total;             // number of defaults
+       int allocated;         // allocated defaults
+       char filename[BCTEXTLEN];        // filename the defaults are stored in
+};
+
+#endif