third-party libs

third-party/BugTrap-1.3-57bd515/source/HexView.h

@@ -0,0 +1,102 @@
+/*
+ * This is a part of the BugTrap package.
+ * Copyright (c) 2005-2009 IntelleSoft.
+ * All rights reserved.
+ *
+ * Description: Hex view control class.
+ * Author: Maksim Pyatkovskiy.
+ *
+ * This source code is only intended as a supplement to the
+ * BugTrap package reference and related electronic documentation
+ * provided with the product. See these sources for detailed
+ * information regarding the BugTrap package.
+ */
+
+#pragma once
+
+/// Hex view control class.
+class CHexView
+{
+public:
+	/// Initialize the object.
+	CHexView(void);
+	/// De-initialize the object.
+	~CHexView(void);
+	/// Attach hex view object to window handle.
+	void Attach(HWND hwnd);
+	/// Detach hex view object to window handle.
+	void Detach(void);
+	/// Set file information.
+	void SetFile(HANDLE hFile);
+	/// Reset file information.
+	void ResetFile(void);
+	/// Get file handle.
+	HANDLE GetFileHandle(void) const;
+
+	enum
+	{
+		/// Number of symbols in one line.
+		LINE_WIDTH = 16,
+		/// Number of cached lines.
+		NUMBER_OF_CACHED_LINES = 2000,
+		/// Size of cache.
+		CACHE_SIZE = LINE_WIDTH * NUMBER_OF_CACHED_LINES
+	};
+
+private:
+	/// Protect the class from being accidentally copied.
+	CHexView(const CHexView& rHexView);
+	/// Protect the class from being accidentally copied.
+	CHexView& operator=(const CHexView& rHexView);
+	/// Window procedure of hex view window.
+	static LRESULT CALLBACK HexViewWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+	/// Draw window client area.
+	void DrawHexView(HDC hdc, const RECT* prcPaint);
+	/// Resize hex view client area.
+	void ResizeHexView(BOOL bIgnoreScrollPos);
+	/// Scroll hex view client area.
+	void ScrollHexView(int nScrollBarType, int nScrollCode);
+	/// Initialize variables.
+	void InitVars(void);
+	/// Load cache from file.
+	void LoadCache(void);
+	/// Load line to the cache.
+	void CacheLine(DWORD dwÑachedLineNum);
+	/// Get current font metrics.
+	void GetTextMetrics(PTEXTMETRIC pTextMetric);
+
+	/// File cache.
+	PBYTE m_pbCache;
+	/// File size.
+	DWORD m_dwFileSize;
+	/// File handle.
+	HANDLE m_hFile;
+	/// Window handle.
+	HWND m_hwnd;
+	/// Old static window procedure.
+	WNDPROC m_pfnOldHexViewWndProc;
+	/// Number of first cache lined.
+	DWORD m_dwFirstCachedLine;
+	/// Old window style.
+	LONG m_lOldStyle;
+	/// Number of wheel lines.
+	int m_nWheelLines;
+};
+
+inline CHexView::CHexView(void) : m_pbCache(NULL)
+{
+	InitVars();
+}
+
+inline CHexView::~CHexView(void)
+{
+	ResetFile();
+}
+
+/**
+ * @return file handle.
+ */
+inline HANDLE CHexView::GetFileHandle(void) const
+{
+	return m_hFile;
+}