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 #undef __FUNCT__ 85c6c1daeSBarry Smith #define __FUNCT__ "PetscDrawGetMouseButton" 95c6c1daeSBarry Smith /*@ 105c6c1daeSBarry Smith PetscDrawGetMouseButton - Returns location of mouse and which button was 115c6c1daeSBarry Smith pressed. Waits for button to be pressed. 125c6c1daeSBarry Smith 135c6c1daeSBarry Smith Collective over PetscDraw 145c6c1daeSBarry Smith 155c6c1daeSBarry Smith Input Parameter: 165c6c1daeSBarry Smith . draw - the window to be used 175c6c1daeSBarry Smith 185c6c1daeSBarry Smith Output Parameters: 199f80f0efSLisandro Dalcin + button - one of PETSC_BUTTON_LEFT, PETSC_BUTTON_CENTER, PETSC_BUTTON_RIGHT, PETSC_BUTTON_WHEEL_UP, PETSC_BUTTON_WHEEL_DOWN 20e118a51fSLisandro Dalcin . x_user, y_user - user coordinates of location (user may pass in NULL). 21e118a51fSLisandro Dalcin - x_phys, y_phys - window coordinates (user may pass in NULL). 225c6c1daeSBarry Smith 23*64f23424SLisandro Dalcin Notes: Only processor 0 actually waits for the button to be pressed. 245c6c1daeSBarry Smith 25*64f23424SLisandro Dalcin Level: intermediate 265c6c1daeSBarry Smith @*/ 27*64f23424SLisandro Dalcin PetscErrorCode PetscDrawGetMouseButton(PetscDraw draw,PetscDrawButton *button,PetscReal *x_user,PetscReal *y_user,PetscReal *x_phys,PetscReal *y_phys) 285c6c1daeSBarry Smith { 295c6c1daeSBarry Smith PetscReal bcast[4]; 30*64f23424SLisandro Dalcin PetscBool isnull; 315c6c1daeSBarry Smith PetscMPIInt rank; 32*64f23424SLisandro Dalcin PetscErrorCode ierr; 335c6c1daeSBarry Smith 345c6c1daeSBarry Smith PetscFunctionBegin; 355c6c1daeSBarry Smith PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 36e118a51fSLisandro Dalcin PetscValidPointer(button,2); 37e118a51fSLisandro Dalcin *button = PETSC_BUTTON_NONE; 38*64f23424SLisandro Dalcin ierr = PetscObjectTypeCompare((PetscObject)draw,PETSC_DRAW_NULL,&isnull);CHKERRQ(ierr); 39*64f23424SLisandro Dalcin if (isnull) PetscFunctionReturn(0); 40*64f23424SLisandro Dalcin if (!draw->ops->getmousebutton) PetscFunctionReturn(0); 41e118a51fSLisandro Dalcin 42*64f23424SLisandro Dalcin ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);CHKERRQ(ierr); 43e118a51fSLisandro Dalcin ierr = PetscDrawCollectiveBegin(draw);CHKERRQ(ierr); 44*64f23424SLisandro Dalcin if (!rank) {ierr = (*draw->ops->getmousebutton)(draw,button,x_user,y_user,x_phys,y_phys);CHKERRQ(ierr);} 45e118a51fSLisandro Dalcin ierr = PetscDrawCollectiveEnd(draw);CHKERRQ(ierr); 46d5eca3faSLisandro Dalcin ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr); 47e118a51fSLisandro Dalcin 48ce94432eSBarry Smith ierr = MPI_Bcast((PetscEnum*)button,1,MPIU_ENUM,0,PetscObjectComm((PetscObject)draw));CHKERRQ(ierr); 495c6c1daeSBarry Smith if (x_user) bcast[0] = *x_user; 505c6c1daeSBarry Smith if (y_user) bcast[1] = *y_user; 515c6c1daeSBarry Smith if (x_phys) bcast[2] = *x_phys; 525c6c1daeSBarry Smith if (y_phys) bcast[3] = *y_phys; 53ce94432eSBarry Smith ierr = MPI_Bcast(bcast,4,MPIU_REAL,0,PetscObjectComm((PetscObject)draw));CHKERRQ(ierr); 545c6c1daeSBarry Smith if (x_user) *x_user = bcast[0]; 555c6c1daeSBarry Smith if (y_user) *y_user = bcast[1]; 565c6c1daeSBarry Smith if (x_phys) *x_phys = bcast[2]; 575c6c1daeSBarry Smith if (y_phys) *y_phys = bcast[3]; 585c6c1daeSBarry Smith PetscFunctionReturn(0); 595c6c1daeSBarry Smith } 605c6c1daeSBarry Smith 615c6c1daeSBarry Smith 625c6c1daeSBarry Smith 635c6c1daeSBarry Smith 645c6c1daeSBarry Smith 655c6c1daeSBarry Smith 66