15c6c1daeSBarry Smith 25c6c1daeSBarry Smith /* 35c6c1daeSBarry Smith Provides the calling sequences for all the basic PetscDraw routines. 45c6c1daeSBarry Smith */ 5af0996ceSBarry Smith #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 65c6c1daeSBarry Smith 75c6c1daeSBarry Smith /*@ 85c6c1daeSBarry Smith PetscDrawGetMouseButton - Returns location of mouse and which button was 95c6c1daeSBarry Smith pressed. Waits for button to be pressed. 105c6c1daeSBarry Smith 115c6c1daeSBarry Smith Collective over PetscDraw 125c6c1daeSBarry Smith 135c6c1daeSBarry Smith Input Parameter: 145c6c1daeSBarry Smith . draw - the window to be used 155c6c1daeSBarry Smith 165c6c1daeSBarry Smith Output Parameters: 179f80f0efSLisandro Dalcin + button - one of PETSC_BUTTON_LEFT, PETSC_BUTTON_CENTER, PETSC_BUTTON_RIGHT, PETSC_BUTTON_WHEEL_UP, PETSC_BUTTON_WHEEL_DOWN 18*6b867d5aSJose E. Roman . x_user - horizontal user coordinate of location (user may pass in NULL). 19*6b867d5aSJose E. Roman . y_user - vertical user coordinate of location (user may pass in NULL). 20*6b867d5aSJose E. Roman . x_phys - horizontal window coordinate (user may pass in NULL). 21*6b867d5aSJose E. Roman - y_phys - vertical window coordinate (user may pass in NULL). 225c6c1daeSBarry Smith 2395452b02SPatrick Sanan Notes: 2495452b02SPatrick Sanan Only processor 0 actually waits for the button to be pressed. 255c6c1daeSBarry Smith 2664f23424SLisandro Dalcin Level: intermediate 275c6c1daeSBarry Smith @*/ 2864f23424SLisandro Dalcin PetscErrorCode PetscDrawGetMouseButton(PetscDraw draw,PetscDrawButton *button,PetscReal *x_user,PetscReal *y_user,PetscReal *x_phys,PetscReal *y_phys) 295c6c1daeSBarry Smith { 3009440f25SLisandro Dalcin PetscReal bcast[4] = {0,0,0,0}; 3164f23424SLisandro Dalcin PetscErrorCode ierr; 325c6c1daeSBarry Smith 335c6c1daeSBarry Smith PetscFunctionBegin; 345c6c1daeSBarry Smith PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 35e118a51fSLisandro Dalcin PetscValidPointer(button,2); 36e118a51fSLisandro Dalcin *button = PETSC_BUTTON_NONE; 3764f23424SLisandro Dalcin if (!draw->ops->getmousebutton) PetscFunctionReturn(0); 38e118a51fSLisandro Dalcin 3909440f25SLisandro Dalcin ierr = (*draw->ops->getmousebutton)(draw,button,x_user,y_user,x_phys,y_phys);CHKERRQ(ierr); 40e118a51fSLisandro Dalcin 41ffc4695bSBarry Smith ierr = MPI_Bcast((PetscEnum*)button,1,MPIU_ENUM,0,PetscObjectComm((PetscObject)draw));CHKERRMPI(ierr); 425c6c1daeSBarry Smith if (x_user) bcast[0] = *x_user; 435c6c1daeSBarry Smith if (y_user) bcast[1] = *y_user; 445c6c1daeSBarry Smith if (x_phys) bcast[2] = *x_phys; 455c6c1daeSBarry Smith if (y_phys) bcast[3] = *y_phys; 46ffc4695bSBarry Smith ierr = MPI_Bcast(bcast,4,MPIU_REAL,0,PetscObjectComm((PetscObject)draw));CHKERRMPI(ierr); 475c6c1daeSBarry Smith if (x_user) *x_user = bcast[0]; 485c6c1daeSBarry Smith if (y_user) *y_user = bcast[1]; 495c6c1daeSBarry Smith if (x_phys) *x_phys = bcast[2]; 505c6c1daeSBarry Smith if (y_phys) *y_phys = bcast[3]; 515c6c1daeSBarry Smith PetscFunctionReturn(0); 525c6c1daeSBarry Smith } 535c6c1daeSBarry Smith 54