1 //**************************************************************************************** 2 // 3 // File: PulseView.cpp 4 // 5 // Written by: David Ramsey and Daniel Switkin 6 // 7 // Copyright 1999, Be Incorporated 8 // 9 //**************************************************************************************** 10 11 #include "PulseView.h" 12 13 #include <stdlib.h> 14 #include <stdio.h> 15 #include <string.h> 16 17 #include <Alert.h> 18 #include <Catalog.h> 19 #include <Locale.h> 20 21 #include <syscalls.h> 22 23 #include "Common.h" 24 #include "PulseApp.h" 25 26 #undef B_TRANSLATE_CONTEXT 27 #define B_TRANSLATE_CONTEXT "PulseView" 28 29 30 PulseView::PulseView(BRect rect, const char *name) : 31 BView(rect, name, B_FOLLOW_ALL_SIDES, B_WILL_DRAW | B_PULSE_NEEDED | B_FRAME_EVENTS) { 32 33 popupmenu = NULL; 34 cpu_menu_items = NULL; 35 36 // Don't init the menus for the DeskbarPulseView, because this instance 37 // will only be used to archive the replicant 38 if (strcmp(name, "DeskbarPulseView") != 0) { 39 Init(); 40 } 41 } 42 43 // This version will be used by the instantiated replicant 44 PulseView::PulseView(BMessage *message) : BView(message) { 45 SetResizingMode(B_FOLLOW_ALL_SIDES); 46 SetFlags(B_WILL_DRAW | B_PULSE_NEEDED); 47 48 popupmenu = NULL; 49 cpu_menu_items = NULL; 50 Init(); 51 } 52 53 void PulseView::Init() { 54 popupmenu = new BPopUpMenu("PopUpMenu", false, false, B_ITEMS_IN_COLUMN); 55 popupmenu->SetFont(be_plain_font); 56 mode1 = new BMenuItem("", NULL, 0, 0); 57 mode2 = new BMenuItem("", NULL, 0, 0); 58 preferences = new BMenuItem(B_TRANSLATE("Settings" B_UTF8_ELLIPSIS), 59 new BMessage(PV_PREFERENCES), 0, 0); 60 about = new BMenuItem(B_TRANSLATE("About Pulse" B_UTF8_ELLIPSIS), 61 new BMessage(PV_ABOUT), 0, 0); 62 63 popupmenu->AddItem(mode1); 64 popupmenu->AddItem(mode2); 65 popupmenu->AddSeparatorItem(); 66 67 system_info sys_info; 68 get_system_info(&sys_info); 69 70 // Only add menu items to control CPUs on an SMP machine 71 if (sys_info.cpu_count >= 2) { 72 cpu_menu_items = new BMenuItem *[sys_info.cpu_count]; 73 char temp[20]; 74 for (int x = 0; x < sys_info.cpu_count; x++) { 75 sprintf(temp, "CPU %d", x + 1); 76 BMessage *message = new BMessage(PV_CPU_MENU_ITEM); 77 message->AddInt32("which", x); 78 cpu_menu_items[x] = new BMenuItem(temp, message, 0, 0); 79 popupmenu->AddItem(cpu_menu_items[x]); 80 } 81 popupmenu->AddSeparatorItem(); 82 } 83 84 popupmenu->AddItem(preferences); 85 popupmenu->AddItem(about); 86 } 87 88 void PulseView::MouseDown(BPoint point) { 89 BPoint cursor; 90 uint32 buttons; 91 MakeFocus(true); 92 GetMouse(&cursor, &buttons, true); 93 94 if (buttons & B_SECONDARY_MOUSE_BUTTON) { 95 ConvertToScreen(&point); 96 // Use the asynchronous version so we don't interfere with 97 // the window responding to Pulse() events 98 popupmenu->Go(point, true, false, true); 99 } 100 } 101 102 void PulseView::Update() { 103 system_info sys_info; 104 get_system_info(&sys_info); 105 bigtime_t now = system_time(); 106 107 // Calculate work done since last call to Update() for each CPU 108 for (int x = 0; x < sys_info.cpu_count; x++) { 109 double cpu_time = (double)(sys_info.cpu_infos[x].active_time - prev_active[x]) / (now - prev_time); 110 prev_active[x] = sys_info.cpu_infos[x].active_time; 111 if (cpu_time < 0) cpu_time = 0; 112 if (cpu_time > 1) cpu_time = 1; 113 cpu_times[x] = cpu_time; 114 115 if (sys_info.cpu_count >= 2) { 116 if (!_kern_cpu_enabled(x) && cpu_menu_items[x]->IsMarked()) 117 cpu_menu_items[x]->SetMarked(false); 118 if (_kern_cpu_enabled(x) && !cpu_menu_items[x]->IsMarked()) 119 cpu_menu_items[x]->SetMarked(true); 120 } 121 } 122 prev_time = now; 123 } 124 125 void PulseView::ChangeCPUState(BMessage *message) { 126 int which = message->FindInt32("which"); 127 128 if (!LastEnabledCPU(which)) { 129 _kern_set_cpu_enabled(which, (int)!cpu_menu_items[which]->IsMarked()); 130 } else { 131 BAlert *alert = new BAlert(NULL, B_TRANSLATE("You can't disable the " 132 "last active CPU."), B_TRANSLATE("OK")); 133 alert->Go(NULL); 134 } 135 } 136 137 PulseView::~PulseView() { 138 if (popupmenu != NULL) delete popupmenu; 139 if (cpu_menu_items != NULL) delete cpu_menu_items; 140 } 141