Created
September 14, 2019 11:29
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A C++ template for Glut Mouse button events
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| int lastMouseBtnStateLeft = GLUT_UP; // last left mouse buttons state | |
| int lastMouseBtnStateRight = GLUT_UP; // last right mouse buttons state | |
| void processMouse(int button, int state1, int x, int y){ | |
| if (button == GLUT_LEFT_BUTTON) { | |
| // decode and handle the mouse events by type | |
| if ((lastMouseBtnStateLeft == GLUT_UP )&&(state1 == GLUT_DOWN)) // mouse down (click) | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateLeft == GLUT_DOWN)&&(state1 == GLUT_DOWN)) // mouse move while clicked | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateLeft == GLUT_DOWN)&&(state1 == GLUT_UP )) // mouse up (release) | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateLeft == GLUT_UP )&&(state1 == GLUT_UP )) // mouse move without buttons | |
| { | |
| // here do your stuff | |
| } | |
| // store actual buttons state for next time | |
| lastMouseBtnStateLeft = state1; | |
| } | |
| if (button == GLUT_RIGHT_BUTTON){ | |
| // decode and handle the mouse events by type | |
| if ((lastMouseBtnStateRight == GLUT_UP )&&(state1 == GLUT_DOWN)) // mouse down (click) | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateRight == GLUT_DOWN)&&(state1 == GLUT_DOWN)) // mouse move while clicked | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateRight == GLUT_DOWN)&&(state1 == GLUT_UP )) // mouse up (release) | |
| { | |
| // here do your stuff | |
| } | |
| if ((lastMouseBtnStateRight == GLUT_UP )&&(state1 == GLUT_UP )) // mouse move without buttons | |
| { | |
| // here do your stuff | |
| } | |
| // store actual buttons state for next time | |
| lastMouseBtnStateRight = state1; | |
| } | |
| } |
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