368 lines
15 KiB
C
368 lines
15 KiB
C
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/******************************************************
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* EasyX Library for C++ (Ver:20240225)
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* https://easyx.cn
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*
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* EasyX.h
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* Provides the latest API.
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******************************************************/
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#pragma once
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#ifndef WINVER
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#define WINVER 0x0400 // Specifies that the minimum required platform is Windows 95 and Windows NT 4.0.
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#endif
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0500 // Specifies that the minimum required platform is Windows 2000
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#endif
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#ifndef _WIN32_WINDOWS
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#define _WIN32_WINDOWS 0x0410 // Specifies that the minimum required platform is Windows 98
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#endif
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#ifdef UNICODE
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#pragma comment(lib,"EasyXw.lib")
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#else
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#pragma comment(lib,"EasyXa.lib")
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#endif
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#ifndef __cplusplus
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#error EasyX is only for C++
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#endif
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#include <windows.h>
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#include <tchar.h>
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// EasyX Window Properties
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#define EX_SHOWCONSOLE 1 // Maintain the console window when creating a graphics window
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#define EX_NOCLOSE 2 // Disable the close button
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#define EX_NOMINIMIZE 4 // Disable the minimize button
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#define EX_DBLCLKS 8 // Support double-click events
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// Color constant
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#define BLACK 0
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#define BLUE 0xAA0000
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#define GREEN 0x00AA00
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#define CYAN 0xAAAA00
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#define RED 0x0000AA
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#define MAGENTA 0xAA00AA
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#define BROWN 0x0055AA
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#define LIGHTGRAY 0xAAAAAA
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#define DARKGRAY 0x555555
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#define LIGHTBLUE 0xFF5555
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#define LIGHTGREEN 0x55FF55
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#define LIGHTCYAN 0xFFFF55
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#define LIGHTRED 0x5555FF
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#define LIGHTMAGENTA 0xFF55FF
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#define YELLOW 0x55FFFF
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#define WHITE 0xFFFFFF
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// Color conversion macro
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#define BGR(color) ( (((color) & 0xFF) << 16) | ((color) & 0xFF00FF00) | (((color) & 0xFF0000) >> 16) )
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class IMAGE;
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// Line style class
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class LINESTYLE
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{
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public:
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LINESTYLE();
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LINESTYLE(const LINESTYLE &style);
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LINESTYLE& operator = (const LINESTYLE &style);
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virtual ~LINESTYLE();
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DWORD style;
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DWORD thickness;
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DWORD *puserstyle;
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DWORD userstylecount;
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};
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// Fill style class
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class FILLSTYLE
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{
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public:
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FILLSTYLE();
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FILLSTYLE(const FILLSTYLE &style);
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FILLSTYLE& operator = (const FILLSTYLE &style);
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virtual ~FILLSTYLE();
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int style; // Fill style
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long hatch; // Hatch pattern
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IMAGE* ppattern; // Fill image
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};
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// Image class
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class IMAGE
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{
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public:
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int getwidth() const; // Get the width of the image
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int getheight() const; // Get the height of the image
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private:
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int width, height; // Width and height of the image
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HBITMAP m_hBmp;
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HDC m_hMemDC;
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float m_data[6];
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COLORREF m_LineColor; // Current line color
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COLORREF m_FillColor; // Current fill color
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COLORREF m_TextColor; // Current text color
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COLORREF m_BkColor; // Current background color
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DWORD* m_pBuffer; // Memory buffer of the image
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LINESTYLE m_LineStyle; // Current line style
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FILLSTYLE m_FillStyle; // Current fill style
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virtual void SetDefault(); // Set the graphics environment as default
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public:
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IMAGE(int _width = 0, int _height = 0);
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IMAGE(const IMAGE &img);
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IMAGE& operator = (const IMAGE &img);
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virtual ~IMAGE();
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virtual void Resize(int _width, int _height); // Resize image
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};
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// Graphics window related functions
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HWND initgraph(int width, int height, int flag = 0); // Create graphics window
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void closegraph(); // Close graphics window
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// Graphics environment related functions
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void cleardevice(); // Clear device
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void setcliprgn(HRGN hrgn); // Set clip region
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void clearcliprgn(); // Clear clip region
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void getlinestyle(LINESTYLE* pstyle); // Get line style
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void setlinestyle(const LINESTYLE* pstyle); // Set line style
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void setlinestyle(int style, int thickness = 1, const DWORD *puserstyle = NULL, DWORD userstylecount = 0); // Set line style
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void getfillstyle(FILLSTYLE* pstyle); // Get fill style
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void setfillstyle(const FILLSTYLE* pstyle); // Set fill style
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void setfillstyle(int style, long hatch = NULL, IMAGE* ppattern = NULL); // Set fill style
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void setfillstyle(BYTE* ppattern8x8); // Set fill style
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void setorigin(int x, int y); // Set coordinate origin
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void getaspectratio(float *pxasp, float *pyasp); // Get aspect ratio
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void setaspectratio(float xasp, float yasp); // Set aspect ratio
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int getrop2(); // Get binary raster operation mode
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void setrop2(int mode); // Set binary raster operation mode
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int getpolyfillmode(); // Get polygon fill mode
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void setpolyfillmode(int mode); // Set polygon fill mode
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void graphdefaults(); // Reset the graphics environment as default
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COLORREF getlinecolor(); // Get line color
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void setlinecolor(COLORREF color); // Set line color
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COLORREF gettextcolor(); // Get text color
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void settextcolor(COLORREF color); // Set text color
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COLORREF getfillcolor(); // Get fill color
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void setfillcolor(COLORREF color); // Set fill color
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COLORREF getbkcolor(); // Get background color
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void setbkcolor(COLORREF color); // Set background color
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int getbkmode(); // Get background mode
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void setbkmode(int mode); // Set background mode
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// Color model transformation related functions
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COLORREF RGBtoGRAY(COLORREF rgb);
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void RGBtoHSL(COLORREF rgb, float *H, float *S, float *L);
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void RGBtoHSV(COLORREF rgb, float *H, float *S, float *V);
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COLORREF HSLtoRGB(float H, float S, float L);
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COLORREF HSVtoRGB(float H, float S, float V);
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// Drawing related functions
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COLORREF getpixel(int x, int y); // Get pixel color
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void putpixel(int x, int y, COLORREF color); // Set pixel color
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void line(int x1, int y1, int x2, int y2); // Draw a line
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void rectangle (int left, int top, int right, int bottom); // Draw a rectangle without filling
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void fillrectangle (int left, int top, int right, int bottom); // Draw a filled rectangle with a border
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void solidrectangle(int left, int top, int right, int bottom); // Draw a filled rectangle without a border
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void clearrectangle(int left, int top, int right, int bottom); // Clear a rectangular region
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void circle (int x, int y, int radius); // Draw a circle without filling
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void fillcircle (int x, int y, int radius); // Draw a filled circle with a border
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void solidcircle(int x, int y, int radius); // Draw a filled circle without a border
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void clearcircle(int x, int y, int radius); // Clear a circular region
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void ellipse (int left, int top, int right, int bottom); // Draw an ellipse without filling
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void fillellipse (int left, int top, int right, int bottom); // Draw a filled ellipse with a border
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void solidellipse(int left, int top, int right, int bottom); // Draw a filled ellipse without a border
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void clearellipse(int left, int top, int right, int bottom); // Clear an elliptical region
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void roundrect (int left, int top, int right, int bottom, int ellipsewidth, int ellipseheight); // Draw a rounded rectangle without filling
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void fillroundrect (int left, int top, int right, int bottom, int ellipsewidth, int ellipseheight); // Draw a filled rounded rectangle with a border
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void solidroundrect(int left, int top, int right, int bottom, int ellipsewidth, int ellipseheight); // Draw a filled rounded rectangle without a border
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void clearroundrect(int left, int top, int right, int bottom, int ellipsewidth, int ellipseheight); // Clear a rounded rectangular region
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void arc (int left, int top, int right, int bottom, double stangle, double endangle); // Draw an arc
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void pie (int left, int top, int right, int bottom, double stangle, double endangle); // Draw a sector without filling
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void fillpie (int left, int top, int right, int bottom, double stangle, double endangle); // Draw a filled sector with a border
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void solidpie(int left, int top, int right, int bottom, double stangle, double endangle); // Draw a filled sector without a border
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void clearpie(int left, int top, int right, int bottom, double stangle, double endangle); // Clear a rounded rectangular region
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void polyline (const POINT *points, int num); // Draw multiple consecutive lines
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void polygon (const POINT *points, int num); // Draw a polygon without filling
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void fillpolygon (const POINT *points, int num); // Draw a filled polygon with a border
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void solidpolygon(const POINT *points, int num); // Draw a filled polygon without a border
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void clearpolygon(const POINT *points, int num); // Clear a polygon region
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void polybezier(const POINT *points, int num); // Draw three square Bezier curves
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void floodfill(int x, int y, COLORREF color, int filltype = FLOODFILLBORDER); // Fill the area
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// Text related functions
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void outtextxy(int x, int y, LPCTSTR str); // Output a string at the specified location
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void outtextxy(int x, int y, TCHAR c); // Output a char at the specified location
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int textwidth(LPCTSTR str); // Get the width of a string
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int textwidth(TCHAR c); // Get the width of a char
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int textheight(LPCTSTR str); // Get the height of a string
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int textheight(TCHAR c); // Get the height of a char
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int drawtext(LPCTSTR str, RECT* pRect, UINT uFormat); // Output a string in the specified format within the specified area.
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int drawtext(TCHAR c, RECT* pRect, UINT uFormat); // Output a char in the specified format within the specified area.
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// Set current text style.
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// nHeight: The height of the text
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// nWidth: The average width of the character. If 0, the scale is adaptive.
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// lpszFace: The font name
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// nEscapement: The writing angle of the string, 0.1 degrees, defaults to 0.
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// nOrientation: The writing angle of each character, 0.1 degrees, defaults to 0.
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// nWeight: The stroke weight of the character
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// bItalic: Specify whether the font is italic
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// bUnderline: Specify whether the font is underlined
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// bStrikeOut: Specify whether the font has a strikeout
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// fbCharSet: Specifies the character set
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// fbOutPrecision: Specifies the output accuracy of the text
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// fbClipPrecision: Specifies the clip accuracy of the text
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// fbQuality: Specifies the output quality of the text
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// fbPitchAndFamily: Specifies a font family that describes a font in a general way
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void settextstyle(int nHeight, int nWidth, LPCTSTR lpszFace);
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void settextstyle(int nHeight, int nWidth, LPCTSTR lpszFace, int nEscapement, int nOrientation, int nWeight, bool bItalic, bool bUnderline, bool bStrikeOut);
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void settextstyle(int nHeight, int nWidth, LPCTSTR lpszFace, int nEscapement, int nOrientation, int nWeight, bool bItalic, bool bUnderline, bool bStrikeOut, BYTE fbCharSet, BYTE fbOutPrecision, BYTE fbClipPrecision, BYTE fbQuality, BYTE fbPitchAndFamily);
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void settextstyle(const LOGFONT *font); // Set current text style
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void gettextstyle(LOGFONT *font); // Get current text style
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// Image related functions
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void loadimage(IMAGE *pDstImg, LPCTSTR pImgFile, int nWidth = 0, int nHeight = 0, bool bResize = false); // Load image from a file (bmp/gif/jpg/png/tif/emf/wmf/ico)
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void loadimage(IMAGE *pDstImg, LPCTSTR pResType, LPCTSTR pResName, int nWidth = 0, int nHeight = 0, bool bResize = false); // Load image from resources (bmp/gif/jpg/png/tif/emf/wmf/ico)
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void saveimage(LPCTSTR pImgFile, IMAGE* pImg = NULL); // Save image to a file (bmp/gif/jpg/png/tif)
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void getimage(IMAGE *pDstImg, int srcX, int srcY, int srcWidth, int srcHeight); // Get image from device
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void putimage(int dstX, int dstY, const IMAGE *pSrcImg, DWORD dwRop = SRCCOPY); // Put image to device
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void putimage(int dstX, int dstY, int dstWidth, int dstHeight, const IMAGE *pSrcImg, int srcX, int srcY, DWORD dwRop = SRCCOPY); // Put image to device
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void rotateimage(IMAGE *dstimg, IMAGE *srcimg, double radian, COLORREF bkcolor = BLACK, bool autosize = false, bool highquality = true);// Rotate image
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void Resize(IMAGE* pImg, int width, int height); // Resize the device
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DWORD* GetImageBuffer(IMAGE* pImg = NULL); // Get the display buffer of the graphics device
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IMAGE* GetWorkingImage(); // Get current graphics device
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void SetWorkingImage(IMAGE* pImg = NULL); // Set current graphics device
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HDC GetImageHDC(IMAGE* pImg = NULL); // Get the graphics device handle
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// Other functions
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int getwidth(); // Get the width of current graphics device
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int getheight(); // Get the height of current graphics device
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void BeginBatchDraw(); // Begin batch drawing mode
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void FlushBatchDraw(); // Refreshes the undisplayed drawing
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void FlushBatchDraw(int left, int top, int right, int bottom); // Refreshes the undisplayed drawing
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void EndBatchDraw(); // End batch drawing mode and refreshes the undisplayed drawing
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void EndBatchDraw(int left, int top, int right, int bottom); // End batch drawing mode and refreshes the undisplayed drawing
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HWND GetHWnd(); // Get the handle of the graphics window
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const TCHAR* GetEasyXVer(); // Get version of EasyX library
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// Get user input as a dialog box
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bool InputBox(LPTSTR pString, int nMaxCount, LPCTSTR pPrompt = NULL, LPCTSTR pTitle = NULL, LPCTSTR pDefault = NULL, int width = 0, int height = 0, bool bOnlyOK = true);
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// Message
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//
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// Category Type Description
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//
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// EX_MOUSE WM_MOUSEMOVE Mouse moves
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// WM_MOUSEWHEEL Mouse wheel is rotated
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// WM_LBUTTONDOWN Left mouse button is pressed
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// WM_LBUTTONUP Left mouse button is released
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// WM_LBUTTONDBLCLK Left mouse button is double-clicked
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// WM_MBUTTONDOWN Middle mouse button is pressed
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// WM_MBUTTONUP Middle mouse button is released
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// WM_MBUTTONDBLCLK Middle mouse button is double-clicked
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// WM_RBUTTONDOWN Right mouse button is pressed
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// WM_RBUTTONUP Right mouse button is released
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// WM_RBUTTONDBLCLK Right mouse button is double-clicked
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//
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// EX_KEY WM_KEYDOWN A key is pressed
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// WM_KEYUP A key is released
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//
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// EX_CHAR WM_CHAR
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//
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// EX_WINDOW WM_ACTIVATE The window is activated or deactivated
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// WM_MOVE The window has been moved
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// WM_SIZE The size of window has changed
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// Message Category
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#define EX_MOUSE 1
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#define EX_KEY 2
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#define EX_CHAR 4
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#define EX_WINDOW 8
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// Message Structure
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struct ExMessage
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{
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USHORT message; // The message identifier
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union
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{
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// Data of the mouse message
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struct
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{
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bool ctrl :1; // Indicates whether the CTRL key is pressed
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||
|
|
bool shift :1; // Indicates whether the SHIFT key is pressed
|
||
|
|
bool lbutton :1; // Indicates whether the left mouse button is pressed
|
||
|
|
bool mbutton :1; // Indicates whether the middle mouse button is pressed
|
||
|
|
bool rbutton :1; // Indicates whether the right mouse button is pressed
|
||
|
|
short x; // The x-coordinate of the cursor
|
||
|
|
short y; // The y-coordinate of the cursor
|
||
|
|
short wheel; // The distance the wheel is rotated, expressed in multiples or divisions of 120
|
||
|
|
};
|
||
|
|
|
||
|
|
// Data of the key message
|
||
|
|
struct
|
||
|
|
{
|
||
|
|
BYTE vkcode; // The virtual-key code of the key
|
||
|
|
BYTE scancode; // The scan code of the key. The value depends on the OEM
|
||
|
|
bool extended :1; // Indicates whether the key is an extended key, such as a function key or a key on the numeric keypad. The value is true if the key is an extended key; otherwise, it is false.
|
||
|
|
bool prevdown :1; // Indicates whether the key is previously up or down
|
||
|
|
};
|
||
|
|
|
||
|
|
// Data of the char message
|
||
|
|
TCHAR ch;
|
||
|
|
|
||
|
|
// Data of the window message
|
||
|
|
struct
|
||
|
|
{
|
||
|
|
WPARAM wParam;
|
||
|
|
LPARAM lParam;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
// Message Function
|
||
|
|
ExMessage getmessage(BYTE filter = -1); // Get a message until a message is available for retrieval
|
||
|
|
void getmessage(ExMessage *msg, BYTE filter = -1); // Get a message until a message is available for retrieval
|
||
|
|
bool peekmessage(ExMessage *msg, BYTE filter = -1, bool removemsg = true); // Get a message if any exist, otherwise return false
|
||
|
|
void flushmessage(BYTE filter = -1); // Flush the message buffer
|
||
|
|
void setcapture(); // Enable the ability to capture mouse messages outside of the graphics window
|
||
|
|
void releasecapture(); // Disable the ability to capture mouse messages outside of the graphics window
|