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C/C++ Source or Header  |  1997-11-25  |  5.4 KB  |  180 lines
  1. /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  2.    %     Copyright (C) 1994, by WATCOM International Inc.  All rights    %
  3.    %     reserved.  No part of this software may be reproduced or        %
  4.    %     used in any form or by any means - graphic, electronic or       %
  5.    %     mechanical, including photocopying, recording, taping or        %
  6.    %     information storage and retrieval systems - except with the     %
  7.    %     written permission of WATCOM International Inc.                 %
  8.    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  9. */
  10.  
  11. #ifndef _WICON_HPP_INCLUDED
  12. #define _WICON_HPP_INCLUDED
  13.  
  14. #ifndef _WNO_PRAGMA_PUSH
  15. #pragma pack(push,8);
  16. #pragma enum int;
  17. #endif
  18.  
  19. #ifndef _WOBJECT_HPP_INCLUDED
  20. #  include "wobject.hpp"
  21. #endif
  22. #ifndef _WARRAY_HPP_INCLUDED
  23. #  include "warray.hpp"
  24. #endif
  25. #ifndef _WRESID_HPP_INCLUDED
  26. #  include "wresid.hpp"
  27. #endif
  28. #ifndef _WPOINT_HPP_INCLUDED
  29. #  include "wpoint.hpp"
  30. #endif
  31. #ifndef _WSIZE_HPP_INCLUDED
  32. #  include "wsize.hpp"
  33. #endif
  34.  
  35. class WImageList;
  36.  
  37. enum WStockIcon {
  38.     WSIconFirst,
  39.     WSIconApplication = WSIconFirst,
  40.     WSIconAsterisk,
  41.     WSIconExclamation,
  42.     WSIconStopSign,
  43.     WSIconQuestion,
  44.     WSIconLast = WSIconQuestion
  45. };
  46.  
  47. class WBitmap;
  48. class WColor;
  49. class WCanvas;
  50. class WIconReference;
  51. class WFilePath;
  52. class WIcon;
  53.  
  54. extern template WArrayReference<WIcon>;
  55. extern template WArray<WIcon>;
  56. typedef WArray<WIcon>                   WIconArray;
  57.  
  58. class WCMCLASS WIcon : public WObject {
  59.     WDeclareSubclass( WIcon, WObject );
  60.  
  61.     friend class WImageList;
  62.  
  63.     public:
  64.  
  65.         /************************************************************
  66.          * Constructors and Destructors
  67.          ************************************************************/
  68.  
  69.         WIcon();
  70.         WIcon( WStockIcon stock );
  71.         WIcon( const WResourceID & id, WModuleHandle module=_ApplicationModule );
  72.         WIcon( const WChar * file, const WResourceID & id);
  73.         WIcon( const WChar * file, WBool monochrome,
  74.                         const WSize & iconSize = WSize(0,0) );
  75.         WIcon( WIconHandle handle, WBool deleteHandle=FALSE );
  76.         WIcon( const WIcon & icon );
  77.         WIcon( const WBitmap & bitmap, WPoint hotPoint, WBool color=TRUE,
  78.                WBool useSystemIconSize=TRUE );
  79.  
  80.         ~WIcon();
  81.  
  82.         /************************************************************
  83.          * Properties
  84.          ************************************************************/
  85.  
  86.         // Handle
  87.  
  88.         WIconHandle GetHandle() const;
  89.  
  90.         // Valid
  91.         //
  92.         //     TRUE if icon was created/loaded.
  93.     
  94.         WBool GetValid() const;
  95.  
  96.         /************************************************************
  97.          * Methods
  98.          ************************************************************/
  99.  
  100.         // Clear
  101.         //
  102.         //     Set the icon to a null state.  Deletes the icon
  103.         //     handle unless it's a stock icon or nodelete was specified.
  104.  
  105.         void Clear();
  106.  
  107.         // Create
  108.         //
  109.         //     Create a new icon.  First clears old icon by calling
  110.         //     the Clear method.
  111.  
  112.         WBool Create( WStockIcon stock );
  113.         WBool Create( const WResourceID & id, WModuleHandle module=_ApplicationModule );
  114.         WBool Create( const WChar * file, const WResourceID & id );
  115.         WBool Create( const WChar * file, WBool monochrome=FALSE,
  116.                         const WSize & iconSize = WSize(0,0) );
  117.         WBool Create( WIconHandle handle, WBool deleteHandle=FALSE );
  118.         WBool Create( const WIcon & icon );
  119.         WBool Create( const WBitmap & bitmap, WPoint hotPoint,
  120.                       WBool color=TRUE, WBool useSystemIconSize=TRUE );
  121.  
  122.         // Save
  123.  
  124.         WBool Save( const WFilePath & path, WUInt bitsPerPixel=0 ) const;
  125.  
  126.         /***********************************************************
  127.          * Static Methods
  128.          ***********************************************************/
  129.  
  130.         // IsValidHandle
  131.         //
  132.         //     Returns TRUE if the given handle is valid.  Can
  133.         //     optionally specify whether or not a null handle
  134.         //     is "valid".
  135.  
  136.         static WBool IsValidHandle( WIconHandle handle,
  137.                                     WBool nullValid=FALSE );
  138.  
  139.         static WBool Save( const WIconArray & icons, const WFilePath & path,
  140.                            WUInt bitsPerPixel=0 );
  141.  
  142.         /***********************************************************
  143.          * Static Properties
  144.          ***********************************************************/
  145.  
  146.         // IconCount
  147.  
  148.         static WUInt GetIconCount( const WChar *file );
  149.  
  150.         // NullIcon
  151.  
  152.         static const WIcon & GetNullIcon();
  153.  
  154.         /***********************************************************
  155.          * Operators
  156.          ***********************************************************/
  157.  
  158.         WIcon & operator=( const WIcon & icon );
  159.  
  160.         /***********************************************************
  161.          * Data Members
  162.          ***********************************************************/
  163.     
  164.     private:
  165.         WIconReference *        _iconRef;
  166. };
  167.  
  168. #ifdef _DEBUG
  169. #define W_ISICONHANDLE(h)  CHECKGDI( WIcon::IsValidHandle( (WIconHandle) h ) )
  170. #else
  171. #define W_ISICONHANDLE(h)
  172. #endif
  173.  
  174. #ifndef _WNO_PRAGMA_PUSH
  175. #pragma enum pop;
  176. #pragma pack(pop);
  177. #endif
  178.  
  179. #endif // _WICON_HPP_INCLUDED
  180.