- added ViewFormat for parsing GE queries for Camera and stuff

- Camera now controlled with adjustable alt, tilt, auto roll based on aircraft banking and auto heading based on aircraft heading git-svn-id: http://moon:8086/svn/software/trunk/projects/FsTrack@129 b431acfa-c32f-4a4a-93f1-934dc6c82436
2015-01-13 23:12:57 +00:00
parent 5c19b3e189
commit f471a98b52
9 changed files with 363 additions and 40 deletions
@@ -0,0 +1,158 @@
+#ifndef VIEWFORMAT_HPP
+#define VIEWFORMAT_HPP
+
+#include "../JuceLibraryCode/JuceHeader.h"
+
+class AParser
+{
+public:
+	virtual void parse(char **ppStream)
+	{
+		printf("%s\n", extractField(ppStream));
+	}
+
+protected:
+	AParser() {}
+	~AParser() {}
+
+	struct Field
+	{
+		Field(const char *_name, AParser &_member, bool &hasTag)
+		: name(_name)
+		, member(_member)
+		, m_hasTag(hasTag)
+		{
+			m_hasTag = false;
+		}
+		const char *name;
+		AParser &member;
+		bool &m_hasTag;
+	};
+
+	char *extractField(char **ppStream)
+	{
+		static char field[256];
+		char *pStream = *ppStream;
+		char *pField = field;
+
+		skip(&pStream);
+
+		for (size_t i=0; i < sizeof(field); i++)
+		{
+			if (*pStream == ',')
+				break;
+
+			if (*pStream == ';')
+				break;
+
+			if (*pStream == '=')
+				break;
+
+			*(pField++) = *(pStream++);
+		}
+		*pField = 0;
+		*ppStream = pStream;
+
+		return field;
+	}
+
+private:
+	void skip(char **ppStream)
+	{
+		while ((**ppStream == '\\') || (**ppStream == '?') || (**ppStream == ',') || (**ppStream == ';') || (**ppStream == '=') || (**ppStream <= 0x20))
+		{
+			(*ppStream)++;
+		};
+
+	}
+};
+
+// ?BBOX=1.0, 2.0, 3.0, 4.0?CAMERA/Pos=1.0, 2.0, 3.0
+class ViewFormat : private AParser
+{
+private:
+	struct Bbox : public AParser
+	{
+		float n, e, s, w;
+
+		void parse(char **ppStream)
+		{
+			n = String(extractField(ppStream)).getFloatValue();
+			e = String(extractField(ppStream)).getFloatValue();
+			s = String(extractField(ppStream)).getFloatValue();
+			w = String(extractField(ppStream)).getFloatValue();
+		}
+	};
+
+	struct Camera : public AParser
+	{
+		float lookatLon, lookatLat, lookatRange, lookatTilt, lookatHeading;
+
+		void parse(char **ppStream)
+		{
+			lookatLon = String(extractField(ppStream)).getFloatValue();
+			lookatLat = String(extractField(ppStream)).getFloatValue();
+			lookatRange = String(extractField(ppStream)).getFloatValue();
+			lookatTilt = String(extractField(ppStream)).getFloatValue();
+			lookatHeading = String(extractField(ppStream)).getFloatValue();
+		}
+	};
+
+	struct View : public AParser
+	{
+		float horizFov, vertFov, horizPixels, vertPixels, terrainEnabled;
+
+		void parse(char **ppStream)
+		{
+			horizFov = String(extractField(ppStream)).getFloatValue();
+			vertFov = String(extractField(ppStream)).getFloatValue();
+			horizPixels = String(extractField(ppStream)).getFloatValue();
+			vertPixels = String(extractField(ppStream)).getFloatValue();
+			terrainEnabled = String(extractField(ppStream)).getFloatValue();
+		}
+	};
+
+	AParser::Field fieldBbox;
+	AParser::Field fieldCamera;
+	AParser::Field fieldView;
+	AParser::Field *fields[3];
+
+public:
+	bool has_bbox;
+	Bbox bbox;
+
+	bool has_camera;
+	Camera camera;
+
+	bool has_view;
+	View view;
+
+	ViewFormat()
+	: fieldBbox(AParser::Field("BBox", bbox, has_bbox))
+	, fieldCamera(AParser::Field("Camera", camera, has_camera))
+	, fieldView(AParser::Field("View", view, has_view))
+	{
+		fields[0] = &fieldBbox;
+		fields[1] = &fieldCamera;
+		fields[2] = &fieldView;
+	}
+	~ViewFormat() {}
+
+	void parse(const char *pStream)
+	{
+		char *pSubStream = (char*)pStream;
+
+		for (unsigned i=0; i < sizeof(fields)/sizeof(*fields); i++)
+		{
+			char *pField = extractField(&pSubStream);
+			if (!stricmp(pField, fields[i]->name))
+			{
+				fields[i]->member.parse(&pSubStream);
+				fields[i]->m_hasTag = true;
+			}
+		}
+	}
+
+};
+
+#endif // VIEWFORMAT_HPP