[技术学习］在Linux平台学习Windows开发技术（三）－－－－激发你的艺术灵感

学习太累，来点艺术吧。这里我们要制作一个简单的工具，功能是通过移动鼠标来画出艺术图。高老头说写程序的最高境界是与艺术相通的，这点我等凡人体会不到，但我们现在却可以通过编程制作出创造艺术品的工具了。 不知为何，这几天优快云博客的图片居然一直在审核，我结合《庄子》一书创造的几幅“艺术图”现在还不方便传上来。

 

下面这份代码的实现基础是鼠标事件和设备上下文的写屏操作，在codesource的代码基础上做了少许修改，技术上很简单，详述可见参考资料。

 

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源代码
/* ***********************************************************
 * File: mfc3.cpp
 * Author: think.hy@gmail.com
 * Refer: http://www.codersource.net/mfc_tutorial_Part3.html
*********************************************************** */
// MFC3//MFC_Tutorial_3.CPP - MFC Tutorial Part 3 from CoderSource.net
//
#include <afxwin.h>

class  MFC_Tutorial_Window :public  CFrameWnd
{
     CPoint m_StartPoint, m_EndPoint;
     BOOL  m_isLButtonDown;   
 public :
     MFC_Tutorial_Window()
     {
          m_isLButtonDown = FALSE ;
          Create(NULL ,"MFC Tutorial Part 3 CoderSource Window" );
     }
     void  OnLButtonDown(UINT nFlags, CPoint point);
     void  OnLButtonUp(UINT nFlags, CPoint point);
     void  OnMouseMove(UINT nFlags, CPoint point);
     void  OnRButtonDown(UINT nFlags, CPoint point);
     DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP( MFC_Tutorial_Window, CFrameWnd)
     ON_WM_LBUTTONDOWN() //Macro to map the left button click to the handler
     ON_WM_LBUTTONUP() //Macro to map the left button click to the handler
     ON_WM_MOUSEMOVE()
     ON_WM_RBUTTONDOWN()
END_MESSAGE_MAP()

void  MFC_Tutorial_Window::OnLButtonDown(UINT nFlags, CPoint point)
{
     // TODO : Add your message handler code here and/or call default

     CFrameWnd::OnLButtonDown(nFlags, point);
     m_StartPoint = point;

     m_isLButtonDown = TRUE ;
}

void  MFC_Tutorial_Window::OnLButtonUp(UINT nFlags, CPoint point)
{
     // TODO : Add your message handler code here and/or call default

     CFrameWnd::OnLButtonDown(nFlags, point);

     m_isLButtonDown = FALSE ;
}

void  MFC_Tutorial_Window::OnMouseMove(UINT nFlags, CPoint point)
{
     CFrameWnd::OnMouseMove(nFlags, point);

     if  (m_isLButtonDown == TRUE ) // Left button is clicking.
     {
         m_EndPoint = point;
         CClientDC dc(this );
         dc.MoveTo(m_StartPoint);
         dc.LineTo(m_EndPoint);
     }
}

void  MFC_Tutorial_Window::OnRButtonDown(UINT nFlags, CPoint point)
{
     // TODO : Add your message handler code here and/or call default

     CClientDC dc(this );

}
class  MyApp :public  CWinApp
{
     MFC_Tutorial_Window *wnd;

public :
     BOOL  InitInstance()
     {
           wnd = new  MFC_Tutorial_Window();
           m_pMainWnd = wnd;
           m_pMainWnd->ShowWindow(TRUE );
           return  TRUE ;
     }
};

MyApp theApp;

//End of MFC_Tutorial_3.CPP.cpp - MFC Tutorial Part 3 from CoderSource.net

---

Makefile:

 

 

###########################################################################################
# Makefile for MFC Application with wineLib on Linux(Ubuntu 9.10)
# *****************************************************************************************
# * Previous steps：
# *       1. Install wine 1.1.35
# *          wget  http://ibiblio.org/pub/linux/system/emulators/wine/wine-1.1.35.tar.bz2
# *          unzip && ./configure && install
# *
# *          Q: configure: error: FreeType development files not found.
# *         A：sudo apt-get install  libfreetype6-dev
# *
# *       2. Copy all the files of Vistual Studio 6 to wine directory.
# *
# * Notice:
# *       When you make with this Makefile at first time,there are some errors about "err:module". Dont worry,make again,you will be success.  
# *
# * Creator: think.hy@gmail.com
# * Date:    2010年 01月 03日 星期日 17:20:53 CST
# ****************************************************************************************

WINE = /home/thinkhy/work/wine/wine-1.1.35/wine


LINK = LINK.EXE
LFLAG = /subsystem:windows       #/OPT:REF

CC   = CL.EXE
CFLAG =    /MT   /c #/GX /D "_AFXDLL"


INCLUDE = /I. /I/home/thinkhy/.wine/drive_c/Program/ Files/Microsof/ Visual/ Studio/VC98/Include /
           /I/home/thinkhy/.wine/drive_c/Program/ Files/Microsof/ Visual/ Studio/VC98/MFC/Include
LIB = /LIBPATH:/home/thinkhy/.wine/drive_c/Program/ Files/Microsof/ Visual/ Studio/VC98/Lib /LIBPATH:/home/thinkhy/.wine/drive_c/Program/ Files/Microsof/ Visual/ Studio/VC98/MFC/Lib

RES =
SRC = ./mfc3.cpp
OBJ = ./mfc3.obj
OUTFILE = mfc3.exe
OUTPUT = /OUT:$(OUTFILE)

all :  compile link

compile :  $(SRC)
     $(WINE)   $(CC)   $(SRC)   $(CFLAG)    $(INCLUDE)  

link :  $(OBJ)
     $(WINE)   $(LINK)   $(LFLAG)   $(LIB)   $(OBJ)   $(RES)   $(OUTPUT)

clean:
    - rm $(OBJ)
    - rm $(OUTFILE)
    touch $(SRC)
###########################################################################################

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参考资料：   http://www.codersource.net/mfc_tutorial_Part3.html