Logo (Chafa): accept enum strings instead of numbers

Author: CarterLi

src/options/logo.c

@@ -189,11 +189,36 @@ bool ffOptionsParseLogoCommandLine(FFOptionsLogo* options, const char* key, cons
         else if(strcasecmp(subKey, "symbols") == 0)
             ffOptionParseString(key, value, &options->chafaSymbols);
         else if(strcasecmp(subKey, "canvas-mode") == 0)
-            options->chafaCanvasMode = ffOptionParseUInt32(key, value);
+        {
+            options->chafaCanvasMode = (uint32_t) ffOptionParseEnum(key, value, (FFKeyValuePair[]) {
+                { "TRUECOLOR", 0 },
+                { "INDEXED_256", 1 },
+                { "INDEXED_240", 2 },
+                { "INDEXED_16", 3 },
+                { "FGBG_BGFG", 4 },
+                { "FGBG", 5 },
+                { "INDEXED_8", 6 },
+                { "INDEXED_16_8", 7 },
+                {},
+            });
+        }
         else if(strcasecmp(subKey, "color-space") == 0)
-            options->chafaColorSpace = ffOptionParseUInt32(key, value);
+        {
+            options->chafaColorSpace = (uint32_t) ffOptionParseEnum(key, value, (FFKeyValuePair[]) {
+                { "RGB", 0 },
+                { "DIN99D", 1 },
+                {},
+            });
+        }
         else if(strcasecmp(subKey, "dither-mode") == 0)
-            options->chafaDitherMode = ffOptionParseUInt32(key, value);
+        {
+            options->chafaDitherMode = (uint32_t) ffOptionParseEnum(key, value, (FFKeyValuePair[]) {
+                { "NONE", 0 },
+                { "ORDERED", 1 },
+                { "DIFFUSION", 2 },
+                {},
+            });
+        }
         else
             return false;
     }