some code in the exhibit ui, and first stab at laying out the

[laserbrain_demo] / src / exman.cc

diff --git a/src/exman.cc b/src/exman.cc
index 31ee1ae..e5cdd9f 100644 (file)
--- a/src/exman.cc
+++ b/src/exman.cc
@@ -8,6 +8,7 @@
 #include "geomdraw.h"
 
 static Exhibit *create_exhibit(const char *type);
+static void clean_desc_text(char *dest, const char *src);
 
 
 ExhibitSlot::ExhibitSlot(Exhibit *ex)
@@ -244,7 +245,10 @@ bool ExhibitManager::load(MetaScene *mscn, const char *fname)
                                ExData exd;
 
                                if(desc) {
-                                       exd.text = std::string(desc);
+                                       char *fixed_desc = new char[strlen(desc) + 1];
+                                       clean_desc_text(fixed_desc, desc);
+                                       exd.text = std::string(fixed_desc);
+                                       delete [] fixed_desc;
                                }
                                if(voice) {
                                        exd.voice = new OggVorbisStream;
@@ -368,3 +372,27 @@ static Exhibit *create_exhibit(const char *type)
        error_log("unknown exhibit type: %s\n", type);
        return 0;
 }
+
+/* clean up description text to be more easily layed out later.
+ * more specifically:
+ *  - remove redundant spaces
+ *  - remove all newlines except as paragraph separators
+ *  - remove all other whitespace chars
+ * destination buffer must be as large as the source buffer
+ */
+static void clean_desc_text(char *dest, const char *src)
+{
+       while(*src) {
+               if(isspace(*src)) {
+                       if(*src == '\n' && *(src + 1) == '\n') {
+                               *dest++ = '\n';
+                       } else {
+                               *dest++ = ' ';
+                       }
+                       while(*src && isspace(*src)) ++src;
+               } else {
+                       *dest++ = *src++;
+               }
+       }
+       *dest = 0;
+}