right_Button_Menu.rar_ right_Button_Menu_DEMO_OPENGL 菜单_opengl m

#include <cstdlib> #include <cstdio> #include <gl/glut.h> #pragma comment( linker,"/subsystem:\"windows\" /entry:\"mainCRTStartup\"" ) GLint static colorKey = 0.0; void myInit() { glClearColor( 1.0, 1.0, 1.0, 0.0 ); glColor3f( 1.0, 0.0, 1.0 ); } void display( ) { glClear( GL_COLOR_BUFFER_BIT ); glRectf( -0.5, -0.5, 0.5, 0.5 ); glFlush(); } //颜色子菜单处理函数 void colorMenu( int id ) { colorKey += 0.3; glutGetMenu(); switch ( id ) { case 1: //更改背景颜色 if ( colorKey < 1.0 ) { glClearColor( colorKey, 1.0, 0.0, 0.0 ); } else { colorKey = 0.0; glClearColor( colorKey, 0.0, 0.2, 0.0 ); } glutPostRedisplay(); break; case 2: //更改矩形颜色 if ( colorKey < 1.0 ) { glColor3f( colorKey, 0.0, 0.0 ); } else { colorKey = 0.0; glColor3f( colorKey, 0.0, 0.0 ); } glutPostRedisplay(); break; default: printf( "\a\a" ); break; } } //旋转子菜单处理函数 void spinMenu( int id ) { glutGetMenu(); switch ( id ) { case 1: glRotatef( 60., 0.0, 0.0, 1.0 ); glutPostRedisplay(); break; case 2: glRotatef( -80, 0.0, 0.0, 1.0 ); glutPostRedisplay(); break; default: printf( "\a\a" ); break; } } //主菜单处理函数 void mainMenu( int id ) { glutGetMenu(); switch ( id ) { case 1: //退出键 exit( 0 ); default: printf( "\a\a" ); break; } } GLint subMenu1, subMenu2, manMenu; int main( int argc, char ** argv ) { glutInit( &argc, argv ); glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE ); glutInitWindowPosition( 200, 200 ); glutInitWindowSize( 600, 600 ); glutCreateWindow( argv[0] ); //建立颜色子菜单 subMenu1 = glutCreateMenu( colorMenu ); glutAddMenuEntry( "Background Color", 1 ); glutAddMenuEntry( "Square Color", 2 ); glutAttachMenu( GLUT_RIGHT_BUTTON ); //建立旋转子菜单 subMenu2 = glutCreateMenu( spinMenu ); glutAddMenuEntry( "CLW", 1 ); glutAddMenuEntry( "CCW", 2 ); glutAttachMenu( GLUT_RIGHT_BUTTON ); //建立主菜单 manMenu = glutCreateMenu( mainMenu ); glutAddMenuEntry( "Exit", 1 ); glutAddSubMenu( "Change Color", subMenu1 ); glutAddSubMenu( "Spin Square", subMenu2 ); glutAttachMenu( GLUT_RIGHT_BUTTON ); glutDisplayFunc( display ); myInit(); glutMainLoop(); return 1; } // //#include <GL/glut.h> //#include <stdio.h> //int menu,subMenu1,subMenu2; // ///*在蓝色的背景上绘制一个白色的正方形*/ //void myDraw(void) //{ // glClearColor(0.0, 0.0, 1.0, 0.0); // glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); // glColor3f(1.0,1.0,1.0); // glOrtho(-1.0,1.0,-1.0,1.0,-1.0,1.0); // glBegin(GL_POLYGON); // glVertex2f(-0.5,-0.5); // glVertex2f(-0.5,0.5); // glVertex2f(0.5,0.5); // glVertex2f(0.5,-0.5); // glEnd(); // glutSwapBuffers(); //} // ///*写出当前是哪个菜单*/ //void GetCurrentMenu(void) //{ // int nMenu; // nMenu = glutGetMenu(); // if(nMenu == menu) // printf("The current menu is Main Menu.\n"); // if(nMenu == subMenu1) // printf("The current menu is SubMenu1.\n"); // if(nMenu == subMenu2) // printf("The current menu is SubMenu2.\n"); //} // ///*子菜单1*/ //void SubMenuFunc1(int data) //{ // GetCurrentMenu(); // switch(data) // { // case 1: // printf("SubMenu1's item 1 is triggered.\n"); // break; // case 2: // printf("SubMenu1's item 2 is triggered.\n"); // break; // case 3: // printf("SubMenu1's item 3 is triggered.\n"); // break; // } //} // ///*子菜单2*/ //void SubMenuFunc2(int data) //{ // GetCurrentMenu(); // switch(data) // { // case 1: // printf("SubMenu2's item 1 is triggered.\n"); // break; // case 2: // printf("SubMenu2's item 2 is triggered.\n"); // break; // case 3: // printf("SubMenu2's item 3 is triggered.\n"); // break; // } //} // ///*主菜单*/ //void MenuFunc(int data) //{ // GetCurrentMenu(); // switch(data) // { // case 1: // printf("MainMenu's item 1 is triggered.\n"); // break; // case 2: // printf("MainMenu's item 2 is triggered.\n"); // break; // case 3: // printf("MainMenu's item 3 is triggered.\n"); // break; // } //} // //int main(int argc,char ** argv) //{ // glutInit(&argc,argv); // glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH); // glutInitWindowSize(500,400); // glutInitWindowPosition(100,100); // // /*创建窗口*/ // glutCreateWindow(" MENU"); // // glutDisplayFunc(myDraw); // // /*创建子菜单1并加入菜单条目*/ // subMenu1 = glutCreateMenu(SubMenuFunc1); // glutAddMenuEntry("SubMenu1's item1",1); // glutAddMenuEntry("SubMenu1's item2",2); // glutAddMenuEntry("SubMenu1's item3",3); // glutAttachMenu(GLUT_RIGHT_BUTTON); // // /*创建子菜单2并加入菜单条目*/ // subMenu2 = glutCreateMenu(SubMenuFunc2); // glutAddMenuEntry("SubMenu2's item1",1); // glutAddMenuEntry("SubMenu2's item2",2); // glutAddMenuEntry("SubMenu2's item3",3); // glutAttachMenu(GLUT_RIGHT_BUTTON); // // /*创建主菜单并加入菜单条目及子菜单*/ // menu = glutCreateMenu(MenuFunc); // glutAddMenuEntry("Item1",1); // glutAddMenuEntry("Item2",2); // glutAddMenuEntry("Item3",3); // glutAddSubMenu("SubMenu 1",subMenu1); // glutAddSubMenu("SubMenu 2",subMenu2); // glutAttachMenu(GLUT_RIGHT_BUTTON); // glutMainLoop();//进入GLUT事件处理循环 // // return 0; //}