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443 lines
14 KiB
443 lines
14 KiB
/*
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* Value
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*/
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#ifndef DUI_CORE_VALUE_H_INCLUDED
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#define DUI_CORE_VALUE_H_INCLUDED
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#pragma once
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namespace DirectUI
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{
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////////////////////////////////////////////////////////
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// Value
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/*
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* Value Multithreading
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*
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* Values are immutable and are a process-wide resource. A value created in one thread can be
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* used in any thread. Access to them are synchronized (thread-safe) and they do not have
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* thread-affinity.
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*
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* TODO: Impl thread-safety for Values
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*/
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// Forward declarations
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class Element;
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class Layout;
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class PropertySheet;
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class Expression;
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typedef DynamicArray<Element*> ElementList;
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// Value will maintain the lifetime of ElementLists, Layouts, PropertySheets, and Expressions after
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// a new Value is created with a pointer to the object (these objects are created externally). When
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// the reference count goes to zero, these objects will be deleted.
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#define DUIV_UNAVAILABLE -2
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#define DUIV_UNSET -1
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#define DUIV_NULL 0
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#define DUIV_INT 1
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#define DUIV_BOOL 2
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#define DUIV_ELEMENTREF 3
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#define DUIV_ELLIST 4 // List deleted on Value destruction and made immutable on create (Value only object holding external created ElementList)
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#define DUIV_STRING 5 // String duplicated on creation and freed on destruction (Value creates new internal instance)
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#define DUIV_POINT 6
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#define DUIV_SIZE 7
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#define DUIV_RECT 8
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#define DUIV_FILL 9
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#define DUIV_LAYOUT 10 // Layout object destroyed on Value destruction (Value only object holding external created Layout)
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#define DUIV_GRAPHIC 11 // Bitmap handle freed on Value destruction (Value creates new internal instance)
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#define DUIV_SHEET 12 // PropertySheet object destroyed on Value destruction and made immutable on create (Value only object holding external created PropertySheet)
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#define DUIV_EXPR 13 // Expression object destroyed on Value destruction (Value only object holding external created Expression)
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#define DUIV_ATOM 14
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#define DUIV_CURSOR 15 // Will not destroy cursor handle upon value destruction
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// Value structures and macros
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#define FILLTYPE_HGradient ((BYTE)0)
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#define FILLTYPE_VGradient ((BYTE)1)
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#define FILLTYPE_Solid ((BYTE)2)
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#define FILLTYPE_TriHGradient ((BYTE)3)
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#define FILLTYPE_TriVGradient ((BYTE)4)
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#define FILLTYPE_DrawFrameControl ((BYTE)5) // DrawFrameControl fill
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#define FILLTYPE_DrawThemeBackground ((BYTE)6) // DrawThemeBackground fill
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struct Fill // Solid colors and fills
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{
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BYTE dType;
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union
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{
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struct
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{
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COLORREF cr;
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COLORREF cr2;
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COLORREF cr3;
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} ref;
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struct
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{
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UINT uType;
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UINT uState;
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} fillDFC;
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struct
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{
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HTHEME hTheme;
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int iPartId;
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int iStateId;
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} fillDTB;
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};
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};
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// Graphic
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// Graphic objects may either have an Alpha channel applied to the entire bitmap,
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// may have full alpha transparency of a particular color in the bitmap (with the
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// option of an auto-color pick (upper left corner)), or neither
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#define GRAPHICTYPE_Bitmap ((BYTE)0)
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#define GRAPHICTYPE_Icon ((BYTE)1)
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#define GRAPHICTYPE_EnhMetaFile ((BYTE)2)
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#ifdef GADGET_ENABLE_GDIPLUS
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#define GRAPHICTYPE_GpBitmap ((BYTE)3)
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#endif
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// Valid modes for Bitmaps (Alpha or RGB used depending on mode), meaning based on context of use
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#define GRAPHIC_NoBlend ((BYTE)0)
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#define GRAPHIC_AlphaConst ((BYTE)1)
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#define GRAPHIC_AlphaConstPerPix ((BYTE)2)
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#define GRAPHIC_TransColor ((BYTE)3)
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#define GRAPHIC_Stretch ((BYTE)4)
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#define GRAPHIC_NineGrid ((BYTE)5)
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#define GRAPHIC_NineGridTransColor ((BYTE)6)
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#define GRAPHIC_NineGridAlphaConstPerPix ((BYTE)7)
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struct Graphic
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{
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HANDLE hImage; // Will hold hBitmap, hIcon, hEnhMetaFile or Gdiplus::Bitmap
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HANDLE hAltImage;
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USHORT cx;
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USHORT cy;
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struct
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{
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BYTE dImgType : 2;
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BYTE dMode : 3;
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bool bFlip : 1;
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bool bRTLGraphic: 1;
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bool bFreehImage: 1;
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union
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{
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BYTE dAlpha;
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struct
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{
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BYTE r: 8;
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BYTE g: 8;
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BYTE b: 8;
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} rgbTrans;
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};
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} BlendMode;
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};
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struct Cursor
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{
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HCURSOR hCursor;
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};
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// Compile-time static version of the Value class
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struct _StaticValue
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{
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BYTE _fReserved0;
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BYTE _fReserved1;
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short _dType;
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int _cRef;
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int _val0;
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int _val1;
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int _val2;
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int _val3;
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};
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struct _StaticValueColor
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{
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BYTE _fReserved0;
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BYTE _fReserved1;
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short _dType;
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int _cRef;
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BYTE dType;
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COLORREF cr;
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COLORREF crSec;
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USHORT x;
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USHORT y;
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};
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struct _StaticValuePtr
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{
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BYTE _fReserved0;
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BYTE _fReserved1;
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short _dType;
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int _cRef;
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void* _ptr;
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};
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// Value class (24-bytes)
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class Value
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{
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private:
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BYTE _fReserved0; // Reserved for small block allocator
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BYTE _fReserved1; // Data alignment padding
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short _dType;
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int _cRef;
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union
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{
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int _intVal;
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bool _boolVal;
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Element* _peVal;
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ElementList* _peListVal;
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LPWSTR _pszVal;
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POINT _ptVal;
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SIZE _sizeVal;
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RECT _rectVal;
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Fill _fillVal;
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Layout* _plVal;
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Graphic _graphicVal;
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PropertySheet* _ppsVal;
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Expression* _pexVal;
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ATOM _atomVal;
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Cursor _cursorVal;
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};
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void _ZeroRelease();
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public:
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#if DBG
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bool IsZeroRef() { return !_cRef; }
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#endif
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// Value creation methods
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static Value* CreateInt(int dValue);
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static Value* CreateBool(bool bValue);
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static Value* CreateElementRef(Element* peValue);
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static Value* CreateElementList(ElementList* peListValue);
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static Value* CreateString(LPCWSTR pszValue, HINSTANCE hResLoad = NULL);
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static Value* CreatePoint(int x, int y);
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static Value* CreateSize(int cx, int cy);
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static Value* CreateRect(int left, int top, int right, int bottom);
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static Value* CreateColor(COLORREF cr);
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static Value* CreateColor(COLORREF cr0, COLORREF cr1, BYTE dType = FILLTYPE_HGradient);
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static Value* CreateColor(COLORREF cr0, COLORREF cr1, COLORREF cr2, BYTE dType = FILLTYPE_TriHGradient);
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static Value* CreateFill(const Fill & clrSrc);
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static Value* CreateDFCFill(UINT uType, UINT uState);
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static Value* CreateDTBFill(HTHEME hTheme, int iPartId, int iStateId);
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static Value* CreateLayout(Layout* plValue);
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static Value* CreateGraphic(HBITMAP hBitmap, BYTE dBlendMode = GRAPHIC_TransColor, UINT dBlendValue = (UINT)-1, bool bFlip = false, bool bRTL = false);
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#ifdef GADGET_ENABLE_GDIPLUS
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static Value* CreateGraphic(Gdiplus::Bitmap * pgpbmp, BYTE dBlendMode = GRAPHIC_TransColor, UINT dBlendValue = (UINT)-1, bool bFlip = false, bool bRTL = false);
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#endif
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static Value* CreateGraphic(HICON hIcon, bool bFlip = false, bool bRTL = false);
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static Value* CreateGraphic(LPCWSTR pszBMP, BYTE dBlendMode = GRAPHIC_TransColor, UINT dBlendValue = (UINT)-1, USHORT cx = 0, USHORT cy = 0, HINSTANCE hResLoad = NULL,
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bool bFlip = false, bool bRTL = false);
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static Value* CreateGraphic(LPCWSTR pszICO, USHORT cxDesired, USHORT cyDesired, HINSTANCE hResLoad = NULL, bool bFlip = false, bool bRTL = false);
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static Value* CreateGraphic(HENHMETAFILE hEnhMetaFile, HENHMETAFILE hAltEnhMetaFile = NULL);
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static Value* CreatePropertySheet(PropertySheet* ppsValue);
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static Value* CreateExpression(Expression* pexValue);
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static Value* CreateAtom(LPCWSTR pszValue);
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static Value* CreateCursor(LPCWSTR pszValue);
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static Value* CreateCursor(HCURSOR hValue);
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// Reference count methods
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void AddRef() { if (_cRef != -1) _cRef++; } // -1 is static value
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void Release() { if (_cRef != -1 && !--_cRef) _ZeroRelease(); } // -1 is static value
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int GetRefCount() { return _cRef; }
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// Accessors
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int GetType();
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LPVOID GetImage(bool bGetRTL);
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int GetInt();
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bool GetBool();
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Element* GetElement();
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ElementList* GetElementList(); // Invalid if released (object referred to destroyed)
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const LPWSTR GetString(); // Invalid if released (object referred to destroyed)
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const POINT* GetPoint(); // Invalid if released
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const SIZE* GetSize(); // Invalid if released
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const RECT* GetRect(); // Invalid if released
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const Fill* GetFill(); // Invalid if released
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Layout* GetLayout(); // Invalid if released (object referred to destroyed)
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Graphic* GetGraphic(); // Invalid if released (object indirectly referred to destroyed)
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PropertySheet* GetPropertySheet(); // Invalid if released (object referred to destroyed)
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Expression* GetExpression(); // Invalid if released (object referred to destroyed)
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ATOM GetAtom(); // Invalid if released
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Cursor* GetCursor(); // Invalid if released
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// Equality
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bool IsEqual(Value* pv);
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// Conversion
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LPWSTR ToString(LPWSTR psz, UINT c);
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// Common values
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static Value* pvUnavailable;
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static Value* pvNull;
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static Value* pvUnset;
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static Value* pvElementNull;
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static Value* pvElListNull;
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static Value* pvBoolTrue;
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static Value* pvBoolFalse;
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static Value* pvStringNull;
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static Value* pvPointZero;
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static Value* pvSizeZero;
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static Value* pvRectZero;
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static Value* pvIntZero;
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static Value* pvLayoutNull;
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static Value* pvGraphicNull;
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static Value* pvSheetNull;
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static Value* pvExprNull;
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static Value* pvAtomZero;
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static Value* pvCursorNull;
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static Value* pvColorTrans;
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};
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//LPVOID GetImage(Graphic *pg, bool bGetRTL);
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#define GethBitmap(pv, bGetRTL) ((HBITMAP)pv->GetImage(bGetRTL))
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#define GethIcon(pv, bGetRTL) ((HICON)pv->GetImage(bGetRTL))
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#define GethEnhMetaFile(pv, bGetRTL) ((HENHMETAFILE)pv->GetImage(bGetRTL))
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#define GetGpBitmap(pv, bGetRTL) ((Gdiplus::Bitmap *)pv->GetImage(bGetRTL))
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#define StaticValue(name, type, val0) static _StaticValue name = { 0, 0, type, -1, val0, 0, 0, 0 }
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#define StaticValue2(name, type, val0, val1) static _StaticValue name = { 0, 0, type, -1, val0, val1, 0, 0 }
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#define StaticValue4(name, type, val0, val1, val2, val3) static _StaticValue name = { 0, 0, type, -1, val0, val1, val2, val3 }
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#define StaticValueColorSolid(name, cr) static _StaticValueColor name = { 0, 0, DUIV_FILL, -1, FILLTYPE_Solid, cr, 0, 0, 0 }
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#define StaticValuePtr(name, type, ptr) static _StaticValuePtr name = { 0, 0, type, -1, ptr }
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// Accessors
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inline int
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Value::GetType()
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{
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return _dType;
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}
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inline int
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Value::GetInt() // Copy passed out
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{
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DUIAssert(_dType == DUIV_INT, "Invalid value type");
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return _intVal;
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}
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inline bool
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Value::GetBool() // Copy passed out
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{
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DUIAssert(_dType == DUIV_BOOL, "Invalid value type");
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return _boolVal;
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}
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inline Element *
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Value::GetElement() // Copy passed out
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{
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DUIAssert(_dType == DUIV_ELEMENTREF, "Invalid value type");
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return _peVal;
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}
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inline ElementList *
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Value::GetElementList() // Copy passed out, invalid (destroyed) if value released
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{
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DUIAssert(_dType == DUIV_ELLIST, "Invalid value type");
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return _peListVal;
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}
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inline const LPWSTR
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Value::GetString() // Copy passed out, invalid (destroyed) if value released
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{
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DUIAssert(_dType == DUIV_STRING, "Invalid value type");
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return _pszVal;
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}
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inline const POINT *
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Value::GetPoint() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_POINT, "Invalid value type");
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return &_ptVal;
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}
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inline const SIZE *
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Value::GetSize() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_SIZE, "Invalid value type");
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return &_sizeVal;
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}
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inline const RECT *
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Value::GetRect() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_RECT, "Invalid value type");
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return &_rectVal;
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}
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inline const Fill *
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Value::GetFill() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_FILL, "Invalid value type");
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return &_fillVal;
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}
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inline Layout *
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Value::GetLayout() // Copy passed out, invalid (destroyed) if value released
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{
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DUIAssert(_dType == DUIV_LAYOUT, "Invalid value type");
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return _plVal;
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}
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inline Graphic *
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Value::GetGraphic() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_GRAPHIC, "Invalid value type");
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return &_graphicVal;
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}
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inline PropertySheet * Value::GetPropertySheet() // Copy passed out, invalid (destroyed) if value released
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{
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DUIAssert(_dType == DUIV_SHEET, "Invalid value type");
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return _ppsVal;
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}
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inline Expression *
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Value::GetExpression() // Copy passed out, invalid (destroyed) if value released
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{
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DUIAssert(_dType == DUIV_EXPR, "Invalid value type");
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return _pexVal;
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}
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inline ATOM
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Value::GetAtom() // Copy passed out
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{
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DUIAssert(_dType == DUIV_ATOM, "Invalid value type");
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return _atomVal;
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}
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inline Cursor *
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Value::GetCursor() // Pointer to internal structure, invalid if value released
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{
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DUIAssert(_dType == DUIV_CURSOR, "Invalid value type");
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return &_cursorVal;
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}
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} // namespace DirectUI
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#endif // DUI_CORE_VALUE_H_INCLUDED
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