add basic python writer for bmap binding

CodeGen/BMapBindings/PythonWriter.java

@@ -0,0 +1,85 @@
+import java.io.OutputStreamWriter;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Vector;
+import java.util.stream.Collectors;
+
+public class PythonWriter {
+
+	private static final Map<String, String> g_CppTypeMap = cppTypeMapCreator();
+
+	private static Map<String, String> cppTypeMapCreator() {
+		Map<String, String> cache = new HashMap<String, String>();
+		cache.put("CKSTRING", "CKSTRING");
+		cache.put("CKDWORD", "CKDWORD");
+		cache.put("CKINT", "CKINT");
+		cache.put("bool", "bool");
+		cache.put("CKFLOAT", "CKFLOAT");
+		cache.put("CKBYTE", "CKBYTE");
+		cache.put("CK_ID", "CKID");
+		cache.put("BMFile", "void");
+		cache.put("BMMeshTransition", "void");
+		cache.put("VxVector3", "VxVector2");
+		cache.put("VxVector2", "VxVector2");
+		cache.put("VxColor", "VxColor");
+		cache.put("VxMatrix", "VxMatrix");
+		cache.put("CK_TEXTURE_SAVEOPTIONS", "enum");
+		cache.put("VX_PIXELFORMAT", "enum");
+		cache.put("VXTEXTURE_BLENDMODE", "enum");
+		cache.put("VXTEXTURE_FILTERMODE", "enum");
+		cache.put("VXTEXTURE_ADDRESSMODE", "enum");
+		cache.put("VXBLEND_MODE", "enum");
+		cache.put("VXFILL_MODE", "enum");
+		cache.put("VXSHADE_MODE", "enum");
+		cache.put("VXCMPFUNC", "enum");
+		return Collections.unmodifiableMap(cache);
+	}
+
+	public static String pythonTypeGetter(ExpFctParamDecl paramdecl) {
+		VariableType vt = paramdecl.mVarType;
+		if (!paramdecl.mIsInput) {
+			vt = vt.getPointerOfThis();
+		}
+
+		StringBuilder sb = new StringBuilder();
+		sb.append("bm_");
+		sb.append(g_CppTypeMap.get(vt.getBaseType()));
+		if (vt.isPointer()) {
+			sb.append("_");
+			sb.append(String.join("", Collections.nCopies(vt.getPointerLevel(), "p")));
+		}
+		return sb.toString();
+	}
+
+	public static void writePythonCode(Vector<ExpFctDecl> data) throws Exception {
+		OutputStreamWriter writer = CommonHelper.openWriter("dest/BMExports.py");
+		IndentHelper helper = new IndentHelper(writer);
+
+		// write snippet
+		CommonHelper.writeSnippet(writer, "snippets/header.py");
+
+		// write function decls
+		for (ExpFctDecl fctdecl : data) {
+			// write annotation
+			// function name
+			helper.printf("## %s", fctdecl.mFctName);
+			// param
+			for (ExpFctParamDecl paramdecl : fctdecl.mFctParams) {
+				helper.printf("#  @param %s[%s] Type: %s. %s%s", paramdecl.mVarName,
+						CommonHelper.getDoxygenInOutStr(paramdecl.mIsInput), paramdecl.mVarType.toCType(),
+						(paramdecl.mIsInput ? "" : "Use ctypes.byref(data) pass it. "), paramdecl.mVarDesc);
+			}
+			// return val
+			helper.puts("#  @return True if no error, otherwise False.");
+
+			// write real declaration
+			// first, we need join all param
+			helper.printf("%s = _create_bmap_func('%s', [%s])", fctdecl.mFctName, fctdecl.mFctName, fctdecl.mFctParams
+					.stream().map(value -> pythonTypeGetter(value)).collect(Collectors.joining(", ")));
+		}
+
+		writer.close();
+	}
+
+}