Mercurial > vba-linux

     1 /*----------------------------------------------------------------------

     2    Copyright (c) 1998 Gipsysoft. All Rights Reserved.

     3    Please see the file "licence.txt" for licencing details.

     4    File:   WinHelper.h

     5    Owner:  russf@gipsysoft.com

     6    Purpose:        Windows helper functions, classes, structures and macros

     7    that make life a little easier

     8    These should all be zero impact classes etc. that is they

     9    should *not* have a cpp file associated with them.

    10    ----------------------------------------------------------------------*/

    11 #ifndef WINHELPER_H

    12 #define WINHELPER_H

    13 

    14 //#ifndef DEBUGHLP_H

    15 //      #include <DebugHlp.h>

    16 //#endif        //      DEBUGHLP_H

    17 

    18 #ifndef FASTCALL

    19 #define FASTCALL

    20 #endif  //      FASTCALL

    21 

    22 extern void AssertFailed(char *, int, char *);

    23 extern void ApiFailure(char *, int, char *);

    24 

    25 #define R_VERIFY(a) R_ASSERT(a)

    26 #define R_ASSERT(a) \

    27     do { \

    28 		if (!(a)) { \

    29 			AssertFailed(__FILE__, __LINE__, # a); \

    30 		} \

    31 	} while (0);

    32 

    33 #define VAPI(a) \

    34     do { \

    35 		if (!(a)) { \

    36 			ApiFailure(__FILE__, __LINE__, # a); \

    37 		} \

    38 	} while (0);

    39 

    40 #define ASSERT_VALID_HWND(a) ASSERT(::IsWindow(a))

    41 

    42 namespace WinHelper

    43 {

    44 	class CSize : public tagSIZE

    45 		//

    46 		//      Wrapper for the SIZE structure

    47 	{

    48 public:

    49 		inline CSize() {};

    50 		inline explicit CSize(const SIZE &size) { cx = size.cx; cy = size.cy; }

    51 		inline explicit CSize(long nSizeX, long nSizeY) { cx = nSizeX; cy = nSizeY; }

    52 		inline void Set(long nSizeX, long nSizeY) { cx = nSizeX; cy = nSizeY; }

    53 		inline operator LPSIZE() { return this; };

    54 

    55 		inline bool operator !=(const SIZE &size) const { return cx != size.cx || cy != size.cy;}

    56 		inline CSize & operator =(const SIZE &size) { cx = size.cx; cy = size.cy; return *this; }

    57 		inline void Empty() { cx = cy = 0; }

    58 	};

    59 

    60 	class CRect : public tagRECT

    61 		//

    62 		//      Wrapper for a RECT structure

    63 	{

    64 public:

    65 		inline CRect() {}

    66 		//      Initialisation constructor

    67 		inline explicit CRect(const RECT& rhs) { Set(rhs.left, rhs.top, rhs.right, rhs.bottom);}

    68 		inline CRect(int xLeft, int yTop, int xRight, int yBottom) { Set(xLeft, yTop, xRight, yBottom); }

    69 		//      Get the width of the rectangle

    70 		inline int Width() const { return right - left; }

    71 		//      Get the height of the rectangle

    72 		inline int Height() const { return bottom - top; }

    73 		//      overloaded operator so you don't have to do &rc anymore

    74 		inline operator LPCRECT() const { return this; };

    75 		inline operator LPRECT() { return this; };

    76 		//      Return the SIZE of the rectangle;

    77 		inline CSize Size() const { CSize s(Width(), Height()); return s; }

    78 		//      Return the top left of the rectangle

    79 		inline POINT TopLeft() const { POINT pt = { left, top }; return pt; }

    80 		//      Return the bottom right of the rectangle

    81 		inline POINT BottomRight() const { POINT pt = { right, bottom }; return pt; }

    82 		//      Set the rectangles left, top, right and bottom

    83 		inline void Set(int xLeft, int yTop, int xRight, int yBottom) { top = yTop; bottom = yBottom; right = xRight; left =

    84 			                                                                xLeft; }

    85 		//      Return true if the rectangle contains all zeros

    86 		inline bool IsEmpty() const { return left == 0 && right == 0 && top == 0 && bottom == 0 ? true : false; }

    87 		//      Zero out our rectangle

    88 		inline void Empty() { left = right = top = bottom = 0; }

    89 		//      Set the size of the rect but leave the top left position untouched.

    90 		inline void SetSize(const CSize &size) { bottom = top + size.cy; right = left + size.cx; }

    91 		inline void SetSize(const SIZE &size) { bottom = top + size.cy; right = left + size.cx; }

    92 		inline void SetSize(int cx, int cy) { bottom = top + cy; right = left + cx; }

    93 		//      Move the rectangle by an offset

    94 		inline void Offset(int cx, int cy)

    95 		{

    96 			top    += cy;

    97 			bottom += cy;

    98 			right  += cx;

    99 			left   += cx;

   100 		}

   101 

   102 		//      Inflate the rectangle by the cx and cy, use negative to shrink the rectangle

   103 		inline void Inflate(int cx, int cy)

   104 		{

   105 			top    -= cy;

   106 			bottom += cy;

   107 			right  += cx;

   108 			left   -= cx;

   109 		}

   110 

   111 		//      Assignment from a RECT

   112 		inline CRect &operator =(const RECT&rhs)

   113 		{

   114 			left  = rhs.left; top = rhs.top;

   115 			right = rhs.right; bottom = rhs.bottom;

   116 			return *this;

   117 		}

   118 

   119 		//      Return true if the point passed is within the rectangle

   120 		inline bool PtInRect(const POINT &pt) const {       return  (pt.x >= left && pt.x < right && pt.y >= top && pt.y <

   121 			                                                         bottom); }

   122 		//      Return true if the rectangle passed overlaps this rectangle

   123 		inline bool Intersect(const RECT &rc) const { return (rc.left < right &&

   124 			                                                            rc.right > left && rc.top < bottom && rc.bottom > top); }

   125 	};

   126 

   127 	class CPoint : public tagPOINT

   128 		//

   129 		//      Wrapper for the POINT structure

   130 	{

   131 public:

   132 		inline CPoint() {};

   133 		inline CPoint(LPARAM lParam) { x = LOWORD(lParam); y = HIWORD(lParam); }

   134 		inline CPoint(int nX, int nY) { x = nX; y = nY; }

   135 		inline CPoint(const POINT &pt) { x = pt.x; y = pt.y; }

   136 		inline bool operator ==(const CPoint &rhs) const { return x == rhs.x && y == rhs.y; }

   137 		inline bool operator !=(const CPoint &rhs) const { return x != rhs.x || y != rhs.y; }

   138 		inline operator LPPOINT() { return this; }

   139 	};

   140 

   141 	class CScrollInfo : public tagSCROLLINFO

   142 	{

   143 public:

   144 		CScrollInfo(UINT fPassedMask) { cbSize = sizeof(tagSCROLLINFO); fMask = fPassedMask; }

   145 	};

   146 

   147 	class CCriticalSection

   148 	//

   149 	//      Simple crtical section handler/wrapper

   150 	{

   151 public:

   152 		inline CCriticalSection()       { ::InitializeCriticalSection(&m_sect); }

   153 		inline ~CCriticalSection() { ::DeleteCriticalSection(&m_sect); }

   154 

   155 		//      Blocking lock.

   156 		inline void Lock()                      { ::EnterCriticalSection(&m_sect); }

   157 		//      Unlock

   158 		inline void Unlock()            { ::LeaveCriticalSection(&m_sect); }

   159 

   160 		class CLock

   161 		//

   162 		//      Simple lock class for the critcal section

   163 		{

   164 public:

   165 			inline CLock(CCriticalSection &sect) : m_sect(sect) { m_sect.Lock(); }

   166 			inline ~CLock() { m_sect.Unlock(); }

   167 private:

   168 			CCriticalSection &m_sect;

   169 

   170 			CLock();

   171 			CLock(const CLock &);

   172 			CLock & operator =(const CLock &);

   173 		};

   174 private:

   175 		CRITICAL_SECTION m_sect;

   176 

   177 		CCriticalSection(const CCriticalSection &);

   178 		CCriticalSection & operator =(const CCriticalSection &);

   179 	};

   180 

   181 #define ZeroStructure(t) ZeroMemory(&t, sizeof(t))

   182 #define countof(t)    (sizeof((t)) / sizeof((t)[0]))

   183 #define UNREF(P) UNREFERENCED_PARAMETER(P)

   184 

   185 	inline bool IsShiftPressed()

   186 	{

   187 		return GetKeyState(VK_SHIFT) & 0x8000 ? true : false;

   188 	}

   189 

   190 	inline bool IsAltPressed()

   191 	{

   192 		return GetKeyState(VK_MENU) & 0x8000 ? true : false;

   193 	}

   194 

   195 	inline bool IsControlPressed()

   196 	{

   197 		return GetKeyState(VK_CONTROL) & 0x8000 ? true : false;

   198 	}

   199 

   200 	inline HICON LoadIcon16x16(HINSTANCE hInst, UINT uID)

   201 	//

   202 	//      Load a 16x16 icon from the same resource as the other size icons.

   203 	{

   204 		return reinterpret_cast<HICON>(::LoadImage(hInst, MAKEINTRESOURCE(uID), IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR));

   205 	}

   206 

   207 	class CDeferWindowPos

   208 	//

   209 	//      Wrapper for the Begin, Defer and End WindowPos functions. Nothing glamorous.

   210 	{

   211 public:

   212 		inline CDeferWindowPos(const int nWindows = 1) : m_hdlDef(::BeginDeferWindowPos(nWindows)) {}

   213 		inline ~CDeferWindowPos() { R_VERIFY(::EndDeferWindowPos(m_hdlDef)); }

   214 		inline HDWP DeferWindowPos(HWND hWnd, HWND hWndInsertAfter, int x, int y, int cx, int cy, UINT uFlags)

   215 		{

   216 			return ::DeferWindowPos(m_hdlDef, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags);

   217 		}

   218 

   219 		inline HDWP DeferWindowPos(HWND hWnd, HWND hWndInsertAfter, const CRect &rc, UINT uFlags)

   220 		{

   221 			return ::DeferWindowPos(m_hdlDef, hWnd, hWndInsertAfter, rc.left, rc.top, rc.Width(), rc.Height(), uFlags);

   222 		}

   223 

   224 private:

   225 		HDWP m_hdlDef;

   226 	};

   227 }       //      WinHelper

   228 

   229 #endif //WINHELPER_H
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:54:39 -0600
parents	f9f4f1b99eed
children