/******************************************************
* EasyX Library for C++ (Ver:20240601)
* https://easyx.cn
*
* EasyX.h
* Provides the latest API.
******************************************************/
#pragma once
#ifndef WINVER
#define WINVER 0x0400 // Specifies that the minimum required platform is Windows 95 and Windows NT 4.0.
#endif
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0500 // Specifies that the minimum required platform is Windows 2000
#endif
#ifndef _WIN32_WINDOWS
#define _WIN32_WINDOWS 0x0410 // Specifies that the minimum required platform is Windows 98
#endif
#ifdef UNICODE
#pragma comment(lib,"EasyXw.lib")
#else
#pragma comment(lib, "EasyXa.lib")
#endif
#ifndef __cplusplus
#error EasyX is only for C++
#endif
#include <windows.h>
#include <tchar.h>
// EasyX Window Properties
#define EX_SHOWCONSOLE 1 // Maintain the console window when creating a graphics window
#define EX_NOCLOSE 2 // Disable the close button
#define EX_NOMINIMIZE 4 // Disable the minimize button
#define EX_DBLCLKS 8 // Support double-click events
// Color constant
#define BLACK 0
#define BLUE 0xAA0000
#define GREEN 0x00AA00
#define CYAN 0xAAAA00
#define RED 0x0000AA
#define MAGENTA 0xAA00AA
#define BROWN 0x0055AA
#define LIGHTGRAY 0xAAAAAA
#define DARKGRAY 0x555555
#define LIGHTBLUE 0xFF5555
#define LIGHTGREEN 0x55FF55
#define LIGHTCYAN 0xFFFF55
#define LIGHTRED 0x5555FF
#define LIGHTMAGENTA 0xFF55FF
#define YELLOW 0x55FFFF
#define WHITE 0xFFFFFF
// Color conversion macro
#define BGR(color) ( (((color) & 0xFF) << 16) | ((color) & 0xFF00FF00) | (((color) & 0xFF0000) >> 16) )
class IMAGE;
// Line style class
class LINESTYLE {
public:
LINESTYLE();
LINESTYLE(const LINESTYLE &style);
LINESTYLE &operator=(const LINESTYLE &style);
virtual ~LINESTYLE();
DWORD style;
DWORD thickness;
DWORD *puserstyle;
DWORD userstylecount;
};
// Fill style class
class FILLSTYLE {
public:
FILLSTYLE();
FILLSTYLE(const FILLSTYLE &style);
FILLSTYLE &operator=(const FILLSTYLE &style);
virtual ~FILLSTYLE();
int style; // Fill style
long hatch; // Hatch pattern
IMAGE *ppattern; // Fill image
};
// Image class
class IMAGE {
public:
int getwidth() const; // Get the width of the image
int getheight() const; // Get the height of the image
private:
int width, height; // Width and height of the image
HBITMAP m_hBmp;
HDC m_hMemDC;
float m_data[6];
COLORREF m_LineColor; // Current line color
COLORREF m_FillColor; // Current fill color
COLORREF m_TextColor; // Current text color
COLORREF m_BkColor; // Current background color
DWORD *m_pBuffer; // Memory buffer of the image
LINESTYLE m_LineStyle; // Current line style
FILLSTYLE m_FillStyle; // Current fill style
virtual void SetDefault(); // Set the graphics environment as default
public:
IMAGE(int _width = 0, int _height = 0);
IMAGE(const IMAGE &img);
IMAGE &operator=(const IMAGE &img);
virtual ~IMAGE();
virtual void Resize(int _width, int _height); // Resize image
};
// Graphics window related functions
HWND initgraph(int width, int height, int flag = 0); // Create graphics window
void closegraph(); // Close graphics window
// Graphics environment related functions
void cleardevice(); // Clear device
void setcliprgn(HRGN hrgn); // Set clip region
void clearcliprgn(); // Clear clip region
void getlinestyle(LINESTYLE *pstyle); // Get line style
void setlinestyle(const LINESTYLE *pstyle); // Set line style
void setlinestyle(int style, int thickness = 1, const DWORD *puserstyle = NULL,
DWORD userstylecount = 0); // Set line style
void getfillstyle(FILLSTYLE *pstyle); // Get fill style
void setfillstyle(const FILLSTYLE *pstyle); // Set fill style
void setfillstyle(int style, long hatch = NULL, IMAGE *ppattern = NULL); // Set fill style
void setfillstyle(BYTE *ppattern8x8); // Set fill style
void setorigin(int x, int y); // Set coordinate origin
void getaspectratio(float *pxasp, float *pyasp); // Get aspect ratio
void setaspectratio(float xasp, float yasp); // Set aspect ratio
int getrop2(); // Get binary raster operation mode
void setrop2(int mode); // Set binary raster operation mode
int getpolyfillmode(); // Get polygon fill mode
void setpolyfillmode(int mode); // Set polygon fill mode
void graphdefaults(); // Reset the graphics environment as default
COLORREF getlinecolor(); // Get line color
void setlinecolor(COLORREF color); // Set line color
COLORREF gettextcolor(); // Get text color
void settextcolor(COLORREF color); // Set text color
COLORREF getfillcolor(); // Get fill color
void setfillcolor(COLORREF color); // Set fill color
COLORREF getbkcolor(); // Get background color
void setbkcolor(COLORREF color); // Set background color
int getbkmode(); // Get background mode
void setbkmode(int mode); // Set background mode
// Color model transformation related functions
COLORREF RGBtoGRAY(COLORREF rgb);
void RGBtoHSL(COLORREF rgb, float *H, float *S, float *L);
void RGBtoHSV(COLORREF rgb, float *H, float *S, float *V);
COLORREF HSLtoRGB(float H, float S, float L);
COLORREF HSVtoRGB(float H, float S, float V);
// Drawing related functions
COLORREF getpixel(int x, int y); // Get pixel color
void putpixel(int x, int y, COLORREF color); // Set pixel color
void line(int x1, int y1, int x2, int y2); // Draw a line
void rectangle(int left, int top, int right, int bottom); // Draw a rectangle without filling
void fillrectangle(int left, int top, int right, int bottom); // Draw a filled rectangle with a border
void solidrectangle(int left, int top, int right, int bottom); // Draw a filled rectangle without a border
void clearrectangle(int left, int top, int right, int bottom); // Clear a rectangular region
void circle(int x, int y, int radius); // Draw a circle without filling
void fillcircle(int x, int y, int radius); // Draw a filled circle with a border
void solidcircle(int x, int y, int radius); // Draw a filled circle without a border
void clearcircle(int x, int y, int radius); // Clear a circular region
void ellipse(int left, int top, int right, int bottom); // Draw an ellipse without filling
void fillellipse(int left, int top, int right, int bottom); // Draw a filled ellipse with a border
void solidellipse(int left, int top, int right, int bottom); // Draw a filled ellipse without a border
void clearellipse(int left, int top, int right, int bottom); // Clear an elliptical region
void roundrect(int left, int top, int right, int bottom, int ellipsewidth,
int ellipseheight); // Draw a rounded rectangle without filling
void fillroundrect(int left, int top, int right, int bottom, int ellipsewidth,
int ellipseheight); // Draw a filled rounded rectangle with a border
void solidroundrect(int left, int top, int right, int bottom, int ellipsewidth,
int ellipseheight); // Draw a filled rounded rectangle without a border
void clearroundrect(int left, int top, int right, int bottom, int ellipsewidth,
int ellipseheight); // Clear a rounded rectangular region
void arc(int left, int top, int right, int bottom, double stangle, double endangle); // Draw an arc
void pie(int left, int top, int right, int bottom, double stangle, double endangle); // Draw a sector without filling
void fillpie(int left, int top, int right, int bottom, double stangle,
double endangle); // Draw a filled sector with a border
void solidpie(int left, int top, int right, int bottom, double stangle,
double endangle); // Draw a filled sector without a border
void clearpie(int left, int top, int right, int bottom, double stangle,
double endangle); // Clear a rounded rectangular region
void polyline(const POINT *points, int num); // Draw multiple consecutive lines
void polygon(const POINT *points, int num); // Draw a polygon without filling
void fillpolygon(const POINT *points, int num); // Draw a filled polygon with a border
void
solidpolygon(const POINT *points, int num); // Draw a filled polygon without a border
void clearpolygon(const POINT *points, int num); // Clear a polygon region
void polybezier(const POINT *points, int num); // Draw three square Bezier curves
void floodfill(int x, int y, COLORREF color, int filltype = FLOODFILLBORDER); // Fill the area
// Text related functions
void outtextxy(int x, int y, LPCTSTR str); // Output a string at the specified location
void outtextxy(int x, int y, TCHAR c); // Output a char at the specified location
int textwidth(LPCTSTR str); // Get the width of a string
int textwidth(TCHAR c); // Get the width of a char
int textheight(LPCTSTR str); // Get the height of a string
int textheight(TCHAR c); // Get the height of a char
int drawtext(LPCTSTR str, RECT *pRect,
UINT uFormat); // Output a string in the specified format within the specified area.
int
drawtext(TCHAR c, RECT *pRect, UINT uFormat); // Output a char in the specified format within the specified area.
// Set current text style.
// nHeight: The height of the text
// nWidth: The average width of the character. If 0, the scale is adaptive.
// lpszFace: The font name
// nEscapement: The writing angle of the string, 0.1 degrees, defaults to 0.
// nOrientation: The writing angle of each character, 0.1 degrees, defaults to 0.
// nWeight: The stroke weight of the character
// bItalic: Specify whether the font is italic
// bUnderline: Specify whether the font is underlined
// bStrikeOut: Specify whether the font has a strikeout
// fbCharSet: Specifies the character set
// fbOutPrecision: Specifies the output accuracy of the text
// fbClipPrecision: Specifies the clip accuracy of the text
// fbQuality: Specifies the output quality of the text
// fbPitchAndFamily: Specifies a font family that describes a font in a general way
void settextstyle(int nHeight, int nWidth, LPCTSTR lpszFace);
void
settextstyle(int nHeight, int nWidth, LPCTSTR lpszFace, int nEscapement, int nOrientation, int nWeight, bool bItalic,
bool bUnderline, bool bStrikeOut);
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);
void settextstyle(const LOGFONT *font); // Set current text style
void gettextstyle(LOGFONT *font); // Get current text style
// Image related functions
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)
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)
void saveimage(LPCTSTR pImgFile,
IMAGE *pImg = NULL); // Save image to a file (bmp/gif/jpg/png/tif)
void getimage(IMAGE *pDstImg, int srcX, int srcY, int srcWidth,
int srcHeight); // Get image from device
void putimage(int dstX, int dstY, const IMAGE *pSrcImg,
DWORD dwRop = SRCCOPY); // Put image to device
void putimage(int dstX, int dstY, int dstWidth, int dstHeight, const IMAGE *pSrcImg, int srcX, int srcY,
DWORD dwRop = SRCCOPY); // Put image to device
void rotateimage(IMAGE *dstimg, IMAGE *srcimg, double radian, COLORREF bkcolor = BLACK, bool autosize = false,
bool highquality = true);// Rotate image
void Resize(IMAGE *pImg, int width, int height); // Resize the device
DWORD *GetImageBuffer(IMAGE *pImg = NULL); // Get the display buffer of the graphics device
IMAGE *GetWorkingImage(); // Get current graphics device
void SetWorkingImage(IMAGE *pImg = NULL); // Set current graphics device
HDC GetImageHDC(IMAGE *pImg = NULL); // Get the graphics device handle
// Other functions
int getwidth(); // Get the width of current graphics device
int getheight(); // Get the height of current graphics device
void BeginBatchDraw(); // Begin batch drawing mode
void FlushBatchDraw(); // Refreshes the undisplayed drawing
void FlushBatchDraw(int left, int top, int right, int bottom); // Refreshes the undisplayed drawing
void EndBatchDraw(); // End batch drawing mode and refreshes the undisplayed drawing
void EndBatchDraw(int left, int top, int right,
int bottom); // End batch drawing mode and refreshes the undisplayed drawing
HWND GetHWnd(); // Get the handle of the graphics window
const TCHAR *GetEasyXVer(); // Get version of EasyX library
// Get user input as a dialog box
bool InputBox(LPTSTR pString, int nMaxCount, LPCTSTR pPrompt = NULL, LPCTSTR pTitle = NULL, LPCTSTR pDefault = NULL,
int width = 0, int height = 0, bool bOnlyOK = true);
// Message
//
// Category Type Description
//
// EX_MOUSE WM_MOUSEMOVE Mouse moves
// WM_MOUSEWHEEL Mouse wheel is rotated
// WM_LBUTTONDOWN Left mouse button is pressed
// WM_LBUTTONUP Left mouse button is released
// WM_LBUTTONDBLCLK Left mouse button is double-clicked
// WM_MBUTTONDOWN Middle mouse button is pressed
// WM_MBUTTONUP Middle mouse button is released
// WM_MBUTTONDBLCLK Middle mouse button is double-clicked
// WM_RBUTTONDOWN Right mouse button is pressed
// WM_RBUTTONUP Right mouse button is released
// WM_RBUTTONDBLCLK Right mouse button is double-clicked
//
// EX_KEY WM_KEYDOWN A key is pressed
// WM_KEYUP A key is released
//
// EX_CHAR WM_CHAR
//
// EX_WINDOW WM_ACTIVATE The window is activated or deactivated
// WM_MOVE The window has been moved
// WM_SIZE The size of window has changed
// Message Category
#define EX_MOUSE 1
#define EX_KEY 2
#define EX_CHAR 4
#define EX_WINDOW 8
// Message Structure
struct ExMessage {
USHORT message; // The message identifier
union {
// Data of the mouse message
struct {
bool ctrl: 1; // Indicates whether the CTRL key is pressed
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