15c6c1daeSBarry Smith 2af0996ceSBarry Smith #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 35c6c1daeSBarry Smith 45c6c1daeSBarry Smith /*@ 55c6c1daeSBarry Smith PetscDrawGetMouseButton - Returns location of mouse and which button was 65c6c1daeSBarry Smith pressed. Waits for button to be pressed. 75c6c1daeSBarry Smith 8c3339decSBarry Smith Collective 95c6c1daeSBarry Smith 105c6c1daeSBarry Smith Input Parameter: 115c6c1daeSBarry Smith . draw - the window to be used 125c6c1daeSBarry Smith 135c6c1daeSBarry Smith Output Parameters: 14811af0c4SBarry Smith + button - one of `PETSC_BUTTON_LEFT`, `PETSC_BUTTON_CENTER`, `PETSC_BUTTON_RIGHT`, `PETSC_BUTTON_WHEEL_UP`, `PETSC_BUTTON_WHEEL_DOWN` 156b867d5aSJose E. Roman . x_user - horizontal user coordinate of location (user may pass in NULL). 166b867d5aSJose E. Roman . y_user - vertical user coordinate of location (user may pass in NULL). 176b867d5aSJose E. Roman . x_phys - horizontal window coordinate (user may pass in NULL). 186b867d5aSJose E. Roman - y_phys - vertical window coordinate (user may pass in NULL). 195c6c1daeSBarry Smith 20811af0c4SBarry Smith Note: 2195452b02SPatrick Sanan Only processor 0 actually waits for the button to be pressed. 225c6c1daeSBarry Smith 2364f23424SLisandro Dalcin Level: intermediate 24811af0c4SBarry Smith 25811af0c4SBarry Smith .seealso: `PetscDraw`, `PetscDrawButton` 265c6c1daeSBarry Smith @*/ 27d71ae5a4SJacob Faibussowitsch PetscErrorCode PetscDrawGetMouseButton(PetscDraw draw, PetscDrawButton *button, PetscReal *x_user, PetscReal *y_user, PetscReal *x_phys, PetscReal *y_phys) 28d71ae5a4SJacob Faibussowitsch { 2909440f25SLisandro Dalcin PetscReal bcast[4] = {0, 0, 0, 0}; 305c6c1daeSBarry Smith 315c6c1daeSBarry Smith PetscFunctionBegin; 325c6c1daeSBarry Smith PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 33*4f572ea9SToby Isaac PetscAssertPointer(button, 2); 34e118a51fSLisandro Dalcin *button = PETSC_BUTTON_NONE; 353ba16761SJacob Faibussowitsch if (!draw->ops->getmousebutton) PetscFunctionReturn(PETSC_SUCCESS); 36e118a51fSLisandro Dalcin 37dbbe0bcdSBarry Smith PetscUseTypeMethod(draw, getmousebutton, button, x_user, y_user, x_phys, y_phys); 38e118a51fSLisandro Dalcin 399566063dSJacob Faibussowitsch PetscCallMPI(MPI_Bcast((PetscEnum *)button, 1, MPIU_ENUM, 0, PetscObjectComm((PetscObject)draw))); 405c6c1daeSBarry Smith if (x_user) bcast[0] = *x_user; 415c6c1daeSBarry Smith if (y_user) bcast[1] = *y_user; 425c6c1daeSBarry Smith if (x_phys) bcast[2] = *x_phys; 435c6c1daeSBarry Smith if (y_phys) bcast[3] = *y_phys; 449566063dSJacob Faibussowitsch PetscCallMPI(MPI_Bcast(bcast, 4, MPIU_REAL, 0, PetscObjectComm((PetscObject)draw))); 455c6c1daeSBarry Smith if (x_user) *x_user = bcast[0]; 465c6c1daeSBarry Smith if (y_user) *y_user = bcast[1]; 475c6c1daeSBarry Smith if (x_phys) *x_phys = bcast[2]; 485c6c1daeSBarry Smith if (y_phys) *y_phys = bcast[3]; 493ba16761SJacob Faibussowitsch PetscFunctionReturn(PETSC_SUCCESS); 505c6c1daeSBarry Smith } 51