ciderpress/util/Util.h
2007-03-27 17:47:10 +00:00

133 lines
3.7 KiB
C++

/*
* CiderPress
* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
* See the file LICENSE for distribution terms.
*/
/*
* Miscellaneous utility classes.
*/
#ifndef __UTIL__
#define __UTIL__
/*
* Gripper for a resizable window.
*/
class CGripper: public CScrollBar {
protected:
afx_msg UINT OnNcHitTest(CPoint point);
DECLARE_MESSAGE_MAP()
};
/*
* Transfer a buffer of data into a rich edit control.
*/
class RichEditXfer {
public:
RichEditXfer(const void* buf, long len) : fBuf((char*)buf), fLen(len)
{}
static DWORD CALLBACK EditStreamCallback(DWORD dwCookie, LPBYTE pbBuff,
LONG cb, LONG* pcb);
const char* fBuf;
long fLen;
};
/*
* Buffer that expands as data is added to it with stdio-style calls.
*/
class ExpandBuffer {
public:
ExpandBuffer(long initialSize = 65536) {
assert(initialSize > 0);
fInitialSize = initialSize;
fWorkBuf = nil;
fWorkCount = fWorkMax = 0;
}
virtual ~ExpandBuffer(void) {
if (fWorkBuf != nil) {
WMSG0("ExpandBuffer: fWorkBuf not seized; freeing\n");
delete[] fWorkBuf;
}
}
virtual int CreateWorkBuf(void);
void Reset(void) {
delete[] fWorkBuf;
fWorkBuf = nil;
fWorkCount = fWorkMax = 0;
}
// Copy printf-formatted output into the output buffer.
void Printf(const char* format, ...);
// Write binary data to the buffer.
void Write(const unsigned char* buf, long len);
// Put a single character in.
void Putc(char ch);
// Seize control of the buffer. It will be the caller's duty to call
// delete[] to free it.
virtual void SeizeBuffer(char** ppBuf, long* pLen);
protected:
virtual int GrowWorkBuf(void);
enum {
kWorkBufMaxIncrement = 4*1024*1024, // limit increase to 4MB jumps
};
long fInitialSize; // initial size of the work buffer
char* fWorkBuf; // work in progress
long fWorkCount; // quantity of data in buffer
long fWorkMax; // maximum size of buffer
};
/*
* Windows helpers.
*/
void EnableControl(CDialog* pDlg, int id, bool enable=true);
void MoveControl(CDialog* pDlg, int id, int deltaX, int deltaY,
bool redraw = true);
void StretchControl(CDialog* pDlg, int id, int deltaX, int deltaY,
bool redraw = true);
void MoveStretchControl(CDialog* pDlg, int id, int moveX, int moveY,
int stretchX, int stretchY, bool redraw = true);
HDWP MoveControl(HDWP hdwp, CDialog* pDlg, int id, int deltaX, int deltaY,
bool redraw = true);
HDWP StretchControl(HDWP hdwp, CDialog* pDlg, int id, int deltaX, int deltaY,
bool redraw = true);
HDWP MoveStretchControl(HDWP hdwp, CDialog* pDlg, int id, int moveX, int moveY,
int stretchX, int stretchY, bool redraw = true);
int GetDlgButtonCheck(CWnd* pWnd, int id);
void SetDlgButtonCheck(CWnd* pWnd, int id, int checkVal);
void CreateSimpleFont(CFont* pFont, CWnd* pWnd, const char* typeFace,
int pointSize);
void GetWin32ErrorString(DWORD err, CString* pStr);
void ShowFailureMsg(CWnd* pWnd, const CString& msg, int titleStrID);
BOOL ShowContextHelp(CWnd* pWnd, HELPINFO* lpHelpInfo);
bool IsWin9x(void);
/*
* Miscellaneous functions.
*/
int GetPascalString(const char* buf, long maxLen, CString* pStr);
void LogHexDump(const void* buf, long len);
int ComputePercent(LONGLONG part, LONGLONG full);
void FormatDate(time_t when, CString* pStr);
char* stristr(const char* string1, const char* string2);
void VectorizeString(char* mangle, char** argv, int* pArgc);
void InjectLowercase(CString* pStr);
bool MatchSemicolonList(const CString set, const CString match);
char* StrcpyNew(const char* str);
/* time_t values for bad dates */
#define kDateNone ((time_t) -2)
#define kDateInvalid ((time_t) -1) // should match return from mktime()
#endif /*__UTIL__*/