1007 lines
29 KiB
C
1007 lines
29 KiB
C
/*
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* Nuklear - v1.00 - public domain
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* no warrenty implied; use at your own risk.
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* authored from 2015-2016 by Micha Mettke
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*/
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/*
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* ==============================================================
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*
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* API
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*
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* ===============================================================
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*/
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#ifndef NK_GDIP_H_
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#define NK_GDIP_H_
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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/* font */
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typedef struct GdipFont GdipFont;
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NK_API GdipFont* nk_gdipfont_create(const char *name, int size);
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NK_API void nk_gdipfont_del(GdipFont *font);
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NK_API struct nk_context* nk_gdip_init(HWND hwnd, unsigned int width, unsigned int height);
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NK_API void nk_gdip_set_font(GdipFont *font);
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NK_API int nk_gdip_handle_event(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
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NK_API void nk_gdip_render(enum nk_anti_aliasing AA, struct nk_color clear);
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NK_API void nk_gdip_shutdown(void);
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#endif
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/*
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* ==============================================================
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*
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* IMPLEMENTATION
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*
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* ===============================================================
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*/
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#ifdef NK_GDIP_IMPLEMENTATION
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#include <stdlib.h>
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#include <malloc.h>
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/* manually declare everything GDI+ needs, because
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GDI+ headers are not usable from C */
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#define WINGDIPAPI __stdcall
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#define GDIPCONST const
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typedef struct GpGraphics GpGraphics;
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typedef struct GpImage GpImage;
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typedef struct GpPen GpPen;
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typedef struct GpBrush GpBrush;
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typedef struct GpStringFormat GpStringFormat;
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typedef struct GpFont GpFont;
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typedef struct GpFontFamily GpFontFamily;
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typedef struct GpFontCollection GpFontCollection;
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typedef GpImage GpBitmap;
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typedef GpBrush GpSolidFill;
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typedef int Status;
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typedef Status GpStatus;
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typedef float REAL;
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typedef DWORD ARGB;
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typedef POINT GpPoint;
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typedef enum {
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TextRenderingHintSystemDefault = 0,
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TextRenderingHintSingleBitPerPixelGridFit = 1,
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TextRenderingHintSingleBitPerPixel = 2,
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TextRenderingHintAntiAliasGridFit = 3,
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TextRenderingHintAntiAlias = 4,
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TextRenderingHintClearTypeGridFit = 5
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} TextRenderingHint;
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typedef enum {
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StringFormatFlagsDirectionRightToLeft = 0x00000001,
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StringFormatFlagsDirectionVertical = 0x00000002,
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StringFormatFlagsNoFitBlackBox = 0x00000004,
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StringFormatFlagsDisplayFormatControl = 0x00000020,
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StringFormatFlagsNoFontFallback = 0x00000400,
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StringFormatFlagsMeasureTrailingSpaces = 0x00000800,
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StringFormatFlagsNoWrap = 0x00001000,
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StringFormatFlagsLineLimit = 0x00002000,
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StringFormatFlagsNoClip = 0x00004000
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} StringFormatFlags;
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typedef enum
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{
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QualityModeInvalid = -1,
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QualityModeDefault = 0,
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QualityModeLow = 1,
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QualityModeHigh = 2
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} QualityMode;
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typedef enum
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{
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SmoothingModeInvalid = QualityModeInvalid,
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SmoothingModeDefault = QualityModeDefault,
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SmoothingModeHighSpeed = QualityModeLow,
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SmoothingModeHighQuality = QualityModeHigh,
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SmoothingModeNone,
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SmoothingModeAntiAlias,
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SmoothingModeAntiAlias8x4 = SmoothingModeAntiAlias,
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SmoothingModeAntiAlias8x8
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} SmoothingMode;
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typedef enum
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{
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FontStyleRegular = 0,
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FontStyleBold = 1,
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FontStyleItalic = 2,
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FontStyleBoldItalic = 3,
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FontStyleUnderline = 4,
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FontStyleStrikeout = 8
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} FontStyle;
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typedef enum {
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FillModeAlternate,
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FillModeWinding
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} FillMode;
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typedef enum {
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CombineModeReplace,
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CombineModeIntersect,
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CombineModeUnion,
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CombineModeXor,
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CombineModeExclude,
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CombineModeComplement
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} CombineMode;
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typedef enum {
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UnitWorld,
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UnitDisplay,
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UnitPixel,
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UnitPoint,
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UnitInch,
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UnitDocument,
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UnitMillimeter
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} Unit;
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typedef struct {
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FLOAT X;
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FLOAT Y;
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FLOAT Width;
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FLOAT Height;
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} RectF;
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typedef enum {
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DebugEventLevelFatal,
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DebugEventLevelWarning
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} DebugEventLevel;
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typedef VOID (WINAPI *DebugEventProc)(DebugEventLevel level, CHAR *message);
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typedef struct {
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UINT32 GdiplusVersion;
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DebugEventProc DebugEventCallback;
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BOOL SuppressBackgroundThread;
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BOOL SuppressExternalCodecs;
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} GdiplusStartupInput;
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typedef Status (WINAPI *NotificationHookProc)(OUT ULONG_PTR *token);
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typedef VOID (WINAPI *NotificationUnhookProc)(ULONG_PTR token);
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typedef struct {
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NotificationHookProc NotificationHook;
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NotificationUnhookProc NotificationUnhook;
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} GdiplusStartupOutput;
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/* startup & shutdown */
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Status WINAPI GdiplusStartup(
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OUT ULONG_PTR *token,
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const GdiplusStartupInput *input,
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OUT GdiplusStartupOutput *output);
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VOID WINAPI GdiplusShutdown(ULONG_PTR token);
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/* image */
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GpStatus WINGDIPAPI
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GdipCreateBitmapFromGraphics(INT width,
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INT height,
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GpGraphics* target,
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GpBitmap** bitmap);
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GpStatus WINGDIPAPI
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GdipDisposeImage(GpImage *image);
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GpStatus WINGDIPAPI
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GdipGetImageGraphicsContext(GpImage *image, GpGraphics **graphics);
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/* pen */
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GpStatus WINGDIPAPI
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GdipCreatePen1(ARGB color, REAL width, Unit unit, GpPen **pen);
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GpStatus WINGDIPAPI
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GdipDeletePen(GpPen *pen);
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GpStatus WINGDIPAPI
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GdipSetPenWidth(GpPen *pen, REAL width);
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GpStatus WINGDIPAPI
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GdipSetPenColor(GpPen *pen, ARGB argb);
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/* brush */
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GpStatus WINGDIPAPI
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GdipCreateSolidFill(ARGB color, GpSolidFill **brush);
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GpStatus WINGDIPAPI
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GdipDeleteBrush(GpBrush *brush);
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GpStatus WINGDIPAPI
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GdipSetSolidFillColor(GpSolidFill *brush, ARGB color);
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/* font */
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GpStatus WINGDIPAPI
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GdipCreateFont(
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GDIPCONST GpFontFamily *fontFamily,
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REAL emSize,
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INT style,
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Unit unit,
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GpFont **font
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);
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GpStatus WINGDIPAPI
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GdipDeleteFont(GpFont* font);
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GpStatus WINGDIPAPI
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GdipGetFontSize(GpFont *font, REAL *size);
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GpStatus WINGDIPAPI
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GdipCreateFontFamilyFromName(GDIPCONST WCHAR *name,
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GpFontCollection *fontCollection,
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GpFontFamily **fontFamily);
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GpStatus WINGDIPAPI
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GdipDeleteFontFamily(GpFontFamily *fontFamily);
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GpStatus WINGDIPAPI
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GdipStringFormatGetGenericTypographic(GpStringFormat **format);
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GpStatus WINGDIPAPI
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GdipSetStringFormatFlags(GpStringFormat *format, INT flags);
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GpStatus WINGDIPAPI
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GdipDeleteStringFormat(GpStringFormat *format);
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/* graphics */
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GpStatus WINGDIPAPI
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GdipCreateFromHWND(HWND hwnd, GpGraphics **graphics);
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GpStatus WINGDIPAPI
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GdipCreateFromHDC(HDC hdc, GpGraphics **graphics);
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GpStatus WINGDIPAPI
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GdipDeleteGraphics(GpGraphics *graphics);
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GpStatus WINGDIPAPI
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GdipSetSmoothingMode(GpGraphics *graphics, SmoothingMode smoothingMode);
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GpStatus WINGDIPAPI
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GdipSetClipRectI(GpGraphics *graphics, INT x, INT y,
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INT width, INT height, CombineMode combineMode);
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GpStatus WINGDIPAPI
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GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1, INT y1,
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INT x2, INT y2);
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GpStatus WINGDIPAPI
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GdipDrawArcI(GpGraphics *graphics, GpPen *pen, INT x, INT y,
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INT width, INT height, REAL startAngle, REAL sweepAngle);
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GpStatus WINGDIPAPI
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GdipFillPieI(GpGraphics *graphics, GpBrush *brush, INT x, INT y,
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INT width, INT height, REAL startAngle, REAL sweepAngle);
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GpStatus WINGDIPAPI
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GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x, INT y,
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INT width, INT height);
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GpStatus WINGDIPAPI
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GdipFillRectangleI(GpGraphics *graphics, GpBrush *brush, INT x, INT y,
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INT width, INT height);
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GpStatus WINGDIPAPI
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GdipFillPolygonI(GpGraphics *graphics, GpBrush *brush,
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GDIPCONST GpPoint *points, INT count, FillMode fillMode);
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GpStatus WINGDIPAPI
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GdipDrawPolygonI(GpGraphics *graphics, GpPen *pen, GDIPCONST GpPoint *points,
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INT count);
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GpStatus WINGDIPAPI
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GdipFillEllipseI(GpGraphics *graphics, GpBrush *brush, INT x, INT y,
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INT width, INT height);
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GpStatus WINGDIPAPI
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GdipDrawEllipseI(GpGraphics *graphics, GpPen *pen, INT x, INT y,
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INT width, INT height);
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GpStatus WINGDIPAPI
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GdipDrawBezierI(GpGraphics *graphics, GpPen *pen, INT x1, INT y1,
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INT x2, INT y2, INT x3, INT y3, INT x4, INT y4);
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GpStatus WINGDIPAPI
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GdipDrawString(
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GpGraphics *graphics,
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GDIPCONST WCHAR *string,
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INT length,
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GDIPCONST GpFont *font,
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GDIPCONST RectF *layoutRect,
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GDIPCONST GpStringFormat *stringFormat,
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GDIPCONST GpBrush *brush
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);
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GpStatus WINGDIPAPI
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GdipGraphicsClear(GpGraphics *graphics, ARGB color);
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GpStatus WINGDIPAPI
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GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x, INT y);
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GpStatus WINGDIPAPI
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GdipMeasureString(
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GpGraphics *graphics,
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GDIPCONST WCHAR *string,
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INT length,
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GDIPCONST GpFont *font,
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GDIPCONST RectF *layoutRect,
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GDIPCONST GpStringFormat *stringFormat,
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RectF *boundingBox,
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INT *codepointsFitted,
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INT *linesFilled
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);
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GpStatus WINGDIPAPI
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GdipSetTextRenderingHint(GpGraphics *graphics, TextRenderingHint mode);
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struct GdipFont
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{
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struct nk_user_font nk;
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GpFont* handle;
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};
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static struct {
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ULONG_PTR token;
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GpGraphics *window;
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GpGraphics *memory;
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GpImage *bitmap;
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GpPen *pen;
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GpSolidFill *brush;
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GpStringFormat *format;
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struct nk_context ctx;
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} gdip;
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static ARGB convert_color(struct nk_color c)
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{
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return (c.a << 24) | (c.r << 16) | (c.g << 8) | c.b;
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}
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static void
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nk_gdip_scissor(float x, float y, float w, float h)
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{
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GdipSetClipRectI(gdip.memory, (INT)x, (INT)y, (INT)(w + 1), (INT)(h + 1), CombineModeReplace);
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}
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static void
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nk_gdip_stroke_line(short x0, short y0, short x1,
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short y1, unsigned int line_thickness, struct nk_color col)
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{
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GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
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GdipSetPenColor(gdip.pen, convert_color(col));
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GdipDrawLineI(gdip.memory, gdip.pen, x0, y0, x1, y1);
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}
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static void
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nk_gdip_stroke_rect(short x, short y, unsigned short w,
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unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col)
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{
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GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
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GdipSetPenColor(gdip.pen, convert_color(col));
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if (r == 0) {
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GdipDrawRectangleI(gdip.memory, gdip.pen, x, y, w, h);
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} else {
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INT d = 2 * r;
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GdipDrawArcI(gdip.memory, gdip.pen, x, y, d, d, 180, 90);
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GdipDrawLineI(gdip.memory, gdip.pen, x + d, y, x + w - d, y);
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GdipDrawArcI(gdip.memory, gdip.pen, x + w - d, y, d, d, 270, 90);
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GdipDrawLineI(gdip.memory, gdip.pen, x + w, y + d, x + w, y + h - d);
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GdipDrawArcI(gdip.memory, gdip.pen, x + w - d, y + h - d, d, d, 0, 90);
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GdipDrawLineI(gdip.memory, gdip.pen, x, y + d, x + w, y + h - d);
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GdipDrawArcI(gdip.memory, gdip.pen, x, y + h - d, d, d, 90, 90);
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GdipDrawLineI(gdip.memory, gdip.pen, x + d, y + h, x + w - d, y + h);
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}
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}
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static void
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nk_gdip_fill_rect(short x, short y, unsigned short w,
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unsigned short h, unsigned short r, struct nk_color col)
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{
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GdipSetSolidFillColor(gdip.brush, convert_color(col));
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if (r == 0) {
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GdipFillRectangleI(gdip.memory, gdip.brush, x, y, w, h);
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} else {
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INT d = 2 * r;
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GdipFillRectangleI(gdip.memory, gdip.brush, x + r, y, w - d, h);
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GdipFillRectangleI(gdip.memory, gdip.brush, x, y + r, w, h - d);
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GdipFillPieI(gdip.memory, gdip.brush, x, y, d, d, 180, 90);
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GdipFillPieI(gdip.memory, gdip.brush, x + w - d, y, d, d, 270, 90);
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GdipFillPieI(gdip.memory, gdip.brush, x + w - d, y + h - d, d, d, 0, 90);
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GdipFillPieI(gdip.memory, gdip.brush, x, y + h - d, d, d, 90, 90);
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}
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}
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static void
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nk_gdip_fill_triangle(short x0, short y0, short x1,
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short y1, short x2, short y2, struct nk_color col)
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{
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POINT points[] = {
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{ x0, y0 },
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{ x1, y1 },
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{ x2, y2 },
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};
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GdipSetSolidFillColor(gdip.brush, convert_color(col));
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GdipFillPolygonI(gdip.memory, gdip.brush, points, 3, FillModeAlternate);
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}
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static void
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nk_gdip_stroke_triangle(short x0, short y0, short x1,
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short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col)
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{
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POINT points[] = {
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{ x0, y0 },
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{ x1, y1 },
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{ x2, y2 },
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{ x0, y0 },
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};
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GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
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GdipSetPenColor(gdip.pen, convert_color(col));
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GdipDrawPolygonI(gdip.memory, gdip.pen, points, 4);
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}
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static void
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nk_gdip_fill_polygon(const struct nk_vec2i *pnts, int count, struct nk_color col)
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{
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int i = 0;
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#define MAX_POINTS 64
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POINT points[MAX_POINTS];
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GdipSetSolidFillColor(gdip.brush, convert_color(col));
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for (i = 0; i < count && i < MAX_POINTS; ++i) {
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points[i].x = pnts[i].x;
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points[i].y = pnts[i].y;
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}
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GdipFillPolygonI(gdip.memory, gdip.brush, points, i, FillModeAlternate);
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#undef MAX_POINTS
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}
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static void
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nk_gdip_stroke_polygon(const struct nk_vec2i *pnts, int count,
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unsigned short line_thickness, struct nk_color col)
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{
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GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
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GdipSetPenColor(gdip.pen, convert_color(col));
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if (count > 0) {
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int i;
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for (i = 1; i < count; ++i)
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GdipDrawLineI(gdip.memory, gdip.pen, pnts[i-1].x, pnts[i-1].y, pnts[i].x, pnts[i].y);
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GdipDrawLineI(gdip.memory, gdip.pen, pnts[count-1].x, pnts[count-1].y, pnts[0].x, pnts[0].y);
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}
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}
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static void
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nk_gdip_stroke_polyline(const struct nk_vec2i *pnts,
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int count, unsigned short line_thickness, struct nk_color col)
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{
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GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
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GdipSetPenColor(gdip.pen, convert_color(col));
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if (count > 0) {
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int i;
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for (i = 1; i < count; ++i)
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GdipDrawLineI(gdip.memory, gdip.pen, pnts[i-1].x, pnts[i-1].y, pnts[i].x, pnts[i].y);
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}
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}
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static void
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nk_gdip_fill_circle(short x, short y, unsigned short w,
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unsigned short h, struct nk_color col)
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{
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GdipSetSolidFillColor(gdip.brush, convert_color(col));
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GdipFillEllipseI(gdip.memory, gdip.brush, x, y, w, h);
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}
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static void
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nk_gdip_stroke_circle(short x, short y, unsigned short w,
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unsigned short h, unsigned short line_thickness, struct nk_color col)
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{
|
|
GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
|
|
GdipSetPenColor(gdip.pen, convert_color(col));
|
|
GdipDrawEllipseI(gdip.memory, gdip.pen, x, y, w, h);
|
|
}
|
|
|
|
static void
|
|
nk_gdip_stroke_curve(struct nk_vec2i p1,
|
|
struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4,
|
|
unsigned short line_thickness, struct nk_color col)
|
|
{
|
|
GdipSetPenWidth(gdip.pen, (REAL)line_thickness);
|
|
GdipSetPenColor(gdip.pen, convert_color(col));
|
|
GdipDrawBezierI(gdip.memory, gdip.pen, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y);
|
|
}
|
|
|
|
static void
|
|
nk_gdip_draw_text(short x, short y, unsigned short w, unsigned short h,
|
|
const char *text, int len, GdipFont *font, struct nk_color cbg, struct nk_color cfg)
|
|
{
|
|
int wsize;
|
|
WCHAR* wstr;
|
|
RectF layout = { (FLOAT)x, (FLOAT)y, (FLOAT)w, (FLOAT)h };
|
|
|
|
if(!text || !font || !len) return;
|
|
|
|
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
|
|
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
|
|
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
|
|
|
|
GdipSetSolidFillColor(gdip.brush, convert_color(cbg));
|
|
GdipFillRectangleI(gdip.memory, gdip.brush, x, y, w, h);
|
|
GdipSetSolidFillColor(gdip.brush, convert_color(cfg));
|
|
GdipDrawString(gdip.memory, wstr, wsize, font->handle, &layout, gdip.format, gdip.brush);
|
|
}
|
|
|
|
static void
|
|
nk_gdip_clear(struct nk_color col)
|
|
{
|
|
GdipGraphicsClear(gdip.memory, convert_color(col));
|
|
}
|
|
|
|
static void
|
|
nk_gdip_blit(GpGraphics *graphics)
|
|
{
|
|
GdipDrawImageI(graphics, gdip.bitmap, 0, 0);
|
|
}
|
|
|
|
GdipFont*
|
|
nk_gdipfont_create(const char *name, int size)
|
|
{
|
|
GdipFont *font = (GdipFont*)calloc(1, sizeof(GdipFont));
|
|
GpFontFamily *family;
|
|
|
|
int wsize = MultiByteToWideChar(CP_UTF8, 0, name, -1, NULL, 0);
|
|
WCHAR* wname = (WCHAR*)_alloca((wsize + 1) * sizeof(wchar_t));
|
|
MultiByteToWideChar(CP_UTF8, 0, name, -1, wname, wsize);
|
|
wname[wsize] = 0;
|
|
|
|
GdipCreateFontFamilyFromName(wname, NULL, &family);
|
|
GdipCreateFont(family, (REAL)size, FontStyleRegular, UnitPixel, &font->handle);
|
|
GdipDeleteFontFamily(family);
|
|
|
|
return font;
|
|
}
|
|
|
|
static float
|
|
nk_gdipfont_get_text_width(nk_handle handle, float height, const char *text, int len)
|
|
{
|
|
GdipFont *font = (GdipFont *)handle.ptr;
|
|
RectF layout = { 0.0f, 0.0f, 65536.0f, 65536.0f };
|
|
RectF bbox;
|
|
int wsize;
|
|
WCHAR* wstr;
|
|
if (!font || !text)
|
|
return 0;
|
|
|
|
(void)height;
|
|
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
|
|
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
|
|
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
|
|
|
|
GdipMeasureString(gdip.memory, wstr, wsize, font->handle, &layout, gdip.format, &bbox, NULL, NULL);
|
|
return bbox.Width;
|
|
}
|
|
|
|
void
|
|
nk_gdipfont_del(GdipFont *font)
|
|
{
|
|
if(!font) return;
|
|
GdipDeleteFont(font->handle);
|
|
free(font);
|
|
}
|
|
|
|
static void
|
|
nk_gdip_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
|
|
{
|
|
HGLOBAL mem;
|
|
SIZE_T size;
|
|
LPCWSTR wstr;
|
|
int utf8size;
|
|
char* utf8;
|
|
(void)usr;
|
|
|
|
if (!IsClipboardFormatAvailable(CF_UNICODETEXT) && OpenClipboard(NULL))
|
|
return;
|
|
|
|
mem = (HGLOBAL)GetClipboardData(CF_UNICODETEXT);
|
|
if (!mem) {
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
size = GlobalSize(mem) - 1;
|
|
if (!size) {
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
wstr = (LPCWSTR)GlobalLock(mem);
|
|
if (!wstr) {
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
utf8size = WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), NULL, 0, NULL, NULL);
|
|
if (!utf8size) {
|
|
GlobalUnlock(mem);
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
utf8 = (char*)malloc(utf8size);
|
|
if (!utf8) {
|
|
GlobalUnlock(mem);
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), utf8, utf8size, NULL, NULL);
|
|
nk_textedit_paste(edit, utf8, utf8size);
|
|
free(utf8);
|
|
GlobalUnlock(mem);
|
|
CloseClipboard();
|
|
}
|
|
|
|
static void
|
|
nk_gdip_clipbard_copy(nk_handle usr, const char *text, int len)
|
|
{
|
|
HGLOBAL mem;
|
|
wchar_t* wstr;
|
|
int wsize;
|
|
(void)usr;
|
|
|
|
if (!OpenClipboard(NULL))
|
|
return;
|
|
|
|
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
|
|
if (!wsize) {
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
mem = (HGLOBAL)GlobalAlloc(GMEM_MOVEABLE, (wsize + 1) * sizeof(wchar_t));
|
|
if (!mem) {
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
wstr = (wchar_t*)GlobalLock(mem);
|
|
if (!wstr) {
|
|
GlobalFree(mem);
|
|
CloseClipboard();
|
|
return;
|
|
}
|
|
|
|
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
|
|
wstr[wsize] = 0;
|
|
GlobalUnlock(mem);
|
|
if (!SetClipboardData(CF_UNICODETEXT, mem))
|
|
GlobalFree(mem);
|
|
CloseClipboard();
|
|
}
|
|
|
|
NK_API struct nk_context*
|
|
nk_gdip_init(HWND hwnd, unsigned int width, unsigned int height)
|
|
{
|
|
GdiplusStartupInput startup = { 1, NULL, FALSE, TRUE };
|
|
GdiplusStartup(&gdip.token, &startup, NULL);
|
|
|
|
GdipCreateFromHWND(hwnd, &gdip.window);
|
|
GdipCreateBitmapFromGraphics(width, height, gdip.window, &gdip.bitmap);
|
|
GdipGetImageGraphicsContext(gdip.bitmap, &gdip.memory);
|
|
GdipCreatePen1(0, 1.0f, UnitPixel, &gdip.pen);
|
|
GdipCreateSolidFill(0, &gdip.brush);
|
|
GdipStringFormatGetGenericTypographic(&gdip.format);
|
|
GdipSetStringFormatFlags(gdip.format, StringFormatFlagsNoFitBlackBox |
|
|
StringFormatFlagsMeasureTrailingSpaces | StringFormatFlagsNoWrap |
|
|
StringFormatFlagsNoClip);
|
|
|
|
nk_init_default(&gdip.ctx, NULL);
|
|
gdip.ctx.clip.copy = nk_gdip_clipbard_copy;
|
|
gdip.ctx.clip.paste = nk_gdip_clipbard_paste;
|
|
return &gdip.ctx;
|
|
}
|
|
|
|
NK_API void
|
|
nk_gdip_set_font(GdipFont *gdipfont)
|
|
{
|
|
struct nk_user_font *font = &gdipfont->nk;
|
|
font->userdata = nk_handle_ptr(gdipfont);
|
|
GdipGetFontSize(gdipfont->handle, &font->height);
|
|
font->width = nk_gdipfont_get_text_width;
|
|
nk_style_set_font(&gdip.ctx, font);
|
|
}
|
|
|
|
NK_API int
|
|
nk_gdip_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
|
|
{
|
|
switch (msg)
|
|
{
|
|
case WM_SIZE:
|
|
if (gdip.window)
|
|
{
|
|
unsigned int width = LOWORD(lparam);
|
|
unsigned int height = HIWORD(lparam);
|
|
GdipDeleteGraphics(gdip.window);
|
|
GdipDeleteGraphics(gdip.memory);
|
|
GdipDisposeImage(gdip.bitmap);
|
|
GdipCreateFromHWND(wnd, &gdip.window);
|
|
GdipCreateBitmapFromGraphics(width, height, gdip.window, &gdip.bitmap);
|
|
GdipGetImageGraphicsContext(gdip.bitmap, &gdip.memory);
|
|
}
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
{
|
|
PAINTSTRUCT paint;
|
|
HDC dc = BeginPaint(wnd, &paint);
|
|
GpGraphics *graphics;
|
|
GdipCreateFromHDC(dc, &graphics);
|
|
nk_gdip_blit(graphics);
|
|
GdipDeleteGraphics(graphics);
|
|
EndPaint(wnd, &paint);
|
|
return 1;
|
|
}
|
|
|
|
case WM_KEYDOWN:
|
|
case WM_KEYUP:
|
|
case WM_SYSKEYDOWN:
|
|
case WM_SYSKEYUP:
|
|
{
|
|
int down = (lparam >> 31) & 1;
|
|
int ctrl = GetKeyState(VK_CONTROL) & (1 << 15);
|
|
|
|
switch (wparam)
|
|
{
|
|
case VK_SHIFT:
|
|
case VK_LSHIFT:
|
|
case VK_RSHIFT:
|
|
nk_input_key(&gdip.ctx, NK_KEY_SHIFT, down);
|
|
return 1;
|
|
|
|
case VK_DELETE:
|
|
nk_input_key(&gdip.ctx, NK_KEY_DEL, down);
|
|
return 1;
|
|
|
|
case VK_RETURN:
|
|
nk_input_key(&gdip.ctx, NK_KEY_ENTER, down);
|
|
return 1;
|
|
|
|
case VK_TAB:
|
|
nk_input_key(&gdip.ctx, NK_KEY_TAB, down);
|
|
return 1;
|
|
|
|
case VK_LEFT:
|
|
if (ctrl)
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_WORD_LEFT, down);
|
|
else
|
|
nk_input_key(&gdip.ctx, NK_KEY_LEFT, down);
|
|
return 1;
|
|
|
|
case VK_RIGHT:
|
|
if (ctrl)
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_WORD_RIGHT, down);
|
|
else
|
|
nk_input_key(&gdip.ctx, NK_KEY_RIGHT, down);
|
|
return 1;
|
|
|
|
case VK_BACK:
|
|
nk_input_key(&gdip.ctx, NK_KEY_BACKSPACE, down);
|
|
return 1;
|
|
|
|
case VK_HOME:
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_START, down);
|
|
nk_input_key(&gdip.ctx, NK_KEY_SCROLL_START, down);
|
|
return 1;
|
|
|
|
case VK_END:
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_END, down);
|
|
nk_input_key(&gdip.ctx, NK_KEY_SCROLL_END, down);
|
|
return 1;
|
|
|
|
case VK_NEXT:
|
|
nk_input_key(&gdip.ctx, NK_KEY_SCROLL_DOWN, down);
|
|
return 1;
|
|
|
|
case VK_PRIOR:
|
|
nk_input_key(&gdip.ctx, NK_KEY_SCROLL_UP, down);
|
|
return 1;
|
|
|
|
case 'C':
|
|
if (ctrl) {
|
|
nk_input_key(&gdip.ctx, NK_KEY_COPY, down);
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case 'V':
|
|
if (ctrl) {
|
|
nk_input_key(&gdip.ctx, NK_KEY_PASTE, down);
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case 'X':
|
|
if (ctrl) {
|
|
nk_input_key(&gdip.ctx, NK_KEY_CUT, down);
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case 'Z':
|
|
if (ctrl) {
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_UNDO, down);
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case 'R':
|
|
if (ctrl) {
|
|
nk_input_key(&gdip.ctx, NK_KEY_TEXT_REDO, down);
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case WM_CHAR:
|
|
if (wparam >= 32)
|
|
{
|
|
nk_input_unicode(&gdip.ctx, (nk_rune)wparam);
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONDOWN:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
|
|
SetCapture(wnd);
|
|
return 1;
|
|
|
|
case WM_LBUTTONUP:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
|
|
ReleaseCapture();
|
|
return 1;
|
|
|
|
case WM_RBUTTONDOWN:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
|
|
SetCapture(wnd);
|
|
return 1;
|
|
|
|
case WM_RBUTTONUP:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
|
|
ReleaseCapture();
|
|
return 1;
|
|
|
|
case WM_MBUTTONDOWN:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
|
|
SetCapture(wnd);
|
|
return 1;
|
|
|
|
case WM_MBUTTONUP:
|
|
nk_input_button(&gdip.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
|
|
ReleaseCapture();
|
|
return 1;
|
|
|
|
case WM_MOUSEWHEEL:
|
|
nk_input_scroll(&gdip.ctx, (float)(short)HIWORD(wparam) / WHEEL_DELTA);
|
|
return 1;
|
|
|
|
case WM_MOUSEMOVE:
|
|
nk_input_motion(&gdip.ctx, (short)LOWORD(lparam), (short)HIWORD(lparam));
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
NK_API void
|
|
nk_gdip_shutdown(void)
|
|
{
|
|
GdipDeleteGraphics(gdip.window);
|
|
GdipDeleteGraphics(gdip.memory);
|
|
GdipDisposeImage(gdip.bitmap);
|
|
GdipDeletePen(gdip.pen);
|
|
GdipDeleteBrush(gdip.brush);
|
|
GdipDeleteStringFormat(gdip.format);
|
|
GdiplusShutdown(gdip.token);
|
|
|
|
nk_free(&gdip.ctx);
|
|
}
|
|
|
|
NK_API void
|
|
nk_gdip_render(enum nk_anti_aliasing AA, struct nk_color clear)
|
|
{
|
|
const struct nk_command *cmd;
|
|
|
|
GdipSetTextRenderingHint(gdip.memory, AA != NK_ANTI_ALIASING_OFF ?
|
|
TextRenderingHintClearTypeGridFit : TextRenderingHintSingleBitPerPixelGridFit);
|
|
GdipSetSmoothingMode(gdip.memory, AA != NK_ANTI_ALIASING_OFF ?
|
|
SmoothingModeHighQuality : SmoothingModeNone);
|
|
nk_gdip_clear(clear);
|
|
|
|
nk_foreach(cmd, &gdip.ctx)
|
|
{
|
|
switch (cmd->type) {
|
|
case NK_COMMAND_NOP: break;
|
|
case NK_COMMAND_SCISSOR: {
|
|
const struct nk_command_scissor *s =(const struct nk_command_scissor*)cmd;
|
|
nk_gdip_scissor(s->x, s->y, s->w, s->h);
|
|
} break;
|
|
case NK_COMMAND_LINE: {
|
|
const struct nk_command_line *l = (const struct nk_command_line *)cmd;
|
|
nk_gdip_stroke_line(l->begin.x, l->begin.y, l->end.x,
|
|
l->end.y, l->line_thickness, l->color);
|
|
} break;
|
|
case NK_COMMAND_RECT: {
|
|
const struct nk_command_rect *r = (const struct nk_command_rect *)cmd;
|
|
nk_gdip_stroke_rect(r->x, r->y, r->w, r->h,
|
|
(unsigned short)r->rounding, r->line_thickness, r->color);
|
|
} break;
|
|
case NK_COMMAND_RECT_FILLED: {
|
|
const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled *)cmd;
|
|
nk_gdip_fill_rect(r->x, r->y, r->w, r->h,
|
|
(unsigned short)r->rounding, r->color);
|
|
} break;
|
|
case NK_COMMAND_CIRCLE: {
|
|
const struct nk_command_circle *c = (const struct nk_command_circle *)cmd;
|
|
nk_gdip_stroke_circle(c->x, c->y, c->w, c->h, c->line_thickness, c->color);
|
|
} break;
|
|
case NK_COMMAND_CIRCLE_FILLED: {
|
|
const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd;
|
|
nk_gdip_fill_circle(c->x, c->y, c->w, c->h, c->color);
|
|
} break;
|
|
case NK_COMMAND_TRIANGLE: {
|
|
const struct nk_command_triangle*t = (const struct nk_command_triangle*)cmd;
|
|
nk_gdip_stroke_triangle(t->a.x, t->a.y, t->b.x, t->b.y,
|
|
t->c.x, t->c.y, t->line_thickness, t->color);
|
|
} break;
|
|
case NK_COMMAND_TRIANGLE_FILLED: {
|
|
const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled *)cmd;
|
|
nk_gdip_fill_triangle(t->a.x, t->a.y, t->b.x, t->b.y,
|
|
t->c.x, t->c.y, t->color);
|
|
} break;
|
|
case NK_COMMAND_POLYGON: {
|
|
const struct nk_command_polygon *p =(const struct nk_command_polygon*)cmd;
|
|
nk_gdip_stroke_polygon(p->points, p->point_count, p->line_thickness,p->color);
|
|
} break;
|
|
case NK_COMMAND_POLYGON_FILLED: {
|
|
const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled *)cmd;
|
|
nk_gdip_fill_polygon(p->points, p->point_count, p->color);
|
|
} break;
|
|
case NK_COMMAND_POLYLINE: {
|
|
const struct nk_command_polyline *p = (const struct nk_command_polyline *)cmd;
|
|
nk_gdip_stroke_polyline(p->points, p->point_count, p->line_thickness, p->color);
|
|
} break;
|
|
case NK_COMMAND_TEXT: {
|
|
const struct nk_command_text *t = (const struct nk_command_text*)cmd;
|
|
nk_gdip_draw_text(t->x, t->y, t->w, t->h,
|
|
(const char*)t->string, t->length,
|
|
(GdipFont*)t->font->userdata.ptr,
|
|
t->background, t->foreground);
|
|
} break;
|
|
case NK_COMMAND_CURVE: {
|
|
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;
|
|
nk_gdip_stroke_curve(q->begin, q->ctrl[0], q->ctrl[1],
|
|
q->end, q->line_thickness, q->color);
|
|
} break;
|
|
case NK_COMMAND_RECT_MULTI_COLOR:
|
|
case NK_COMMAND_IMAGE:
|
|
case NK_COMMAND_ARC:
|
|
case NK_COMMAND_ARC_FILLED:
|
|
default: break;
|
|
}
|
|
}
|
|
nk_gdip_blit(gdip.window);
|
|
nk_clear(&gdip.ctx);
|
|
}
|
|
|
|
#endif
|
|
|