178 lines
4.0 KiB
C++
178 lines
4.0 KiB
C++
/*
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* Copyright 2000, Georges-Edouard Berenger. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#include "MemoryBarMenu.h"
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#include "MemoryBarMenuItem.h"
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#include "KernelMemoryBarMenuItem.h"
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#include "ProcessController.h"
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#include <Bitmap.h>
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#include <Roster.h>
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#include <StringForSize.h>
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#include <Window.h>
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#include <stdlib.h>
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#define EXTRA 10
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float gMemoryTextWidth;
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MemoryBarMenu::MemoryBarMenu(const char* name, info_pack* infos, system_info& systemInfo)
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: BMenu(name),
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fFirstShow(true)
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{
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fTeamCount = systemInfo.used_teams + EXTRA;
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SetFlags(Flags() | B_PULSE_NEEDED);
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fTeamList = (team_id*)malloc(sizeof (team_id) * fTeamCount);
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unsigned int k;
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for (k = 0; k < systemInfo.used_teams; k++) {
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fTeamList[k] = infos[k].team_info.team;
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}
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while (k < fTeamCount) {
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fTeamList[k++] = -1;
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}
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char buffer[64];
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string_for_size(99999999.9, buffer, sizeof(buffer));
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gMemoryTextWidth = 2 * StringWidth(buffer) + 32;
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fRecycleCount = EXTRA;
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fRecycleList = (MRecycleItem*)malloc(sizeof(MRecycleItem) * fRecycleCount);
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SetFont(be_plain_font);
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AddItem(new KernelMemoryBarMenuItem(systemInfo));
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}
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MemoryBarMenu::~MemoryBarMenu()
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{
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free(fTeamList);
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free(fRecycleList);
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}
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void
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MemoryBarMenu::Draw(BRect updateRect)
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{
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if (fFirstShow) {
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Pulse();
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fFirstShow = false;
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}
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BMenu::Draw(updateRect);
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}
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void
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MemoryBarMenu::Pulse()
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{
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system_info sinfo;
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get_system_info(&sinfo);
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int64 committedMemory = (int64)sinfo.used_pages * B_PAGE_SIZE / 1024;
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int64 cachedMemory = (int64)sinfo.cached_pages * B_PAGE_SIZE / 1024;
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Window()->BeginViewTransaction();
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// create the list of items to remove, for their team is gone. Update the old teams.
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int lastRecycle = 0;
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int firstRecycle = 0;
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int k;
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MemoryBarMenuItem* item;
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int total = 0;
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for (k = 1; (item = (MemoryBarMenuItem*)ItemAt(k)) != NULL; k++) {
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int m = item->UpdateSituation(committedMemory);
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if (m < 0) {
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if (lastRecycle == fRecycleCount) {
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fRecycleCount += EXTRA;
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fRecycleList = (MRecycleItem*)realloc(fRecycleList,
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sizeof(MRecycleItem) * fRecycleCount);
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}
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fRecycleList[lastRecycle].index = k;
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fRecycleList[lastRecycle++].item = item;
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} else {
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if (lastRecycle > 0) {
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RemoveItems(fRecycleList[0].index, lastRecycle, true);
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k -= lastRecycle;
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lastRecycle = 0;
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}
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total += m;
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}
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}
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// Look new teams that have appeared. Create an item for them, or recycle from the list.
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int32 cookie = 0;
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info_pack infos;
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item = NULL;
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while (get_next_team_info(&cookie, &infos.team_info) == B_OK) {
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unsigned int j = 0;
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while (j < fTeamCount && infos.team_info.team != fTeamList[j]) {
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j++;
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}
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if (j == fTeamCount) {
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// new team
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team_info info;
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j = 0;
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while (j < fTeamCount && fTeamList[j] != -1) {
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if (get_team_info(fTeamList[j], &info) != B_OK)
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fTeamList[j] = -1;
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else
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j++;
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}
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if (j == fTeamCount) {
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fTeamCount += 10;
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fTeamList = (team_id*)realloc(fTeamList, sizeof(team_id) * fTeamCount);
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}
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fTeamList[j] = infos.team_info.team;
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if (!get_team_name_and_icon(infos, true)) {
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// the team is already gone!
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fTeamList[j] = -1;
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} else {
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if (!item && firstRecycle < lastRecycle)
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item = fRecycleList[firstRecycle++].item;
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if (item)
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item->Reset(infos.team_name, infos.team_info.team, infos.team_icon, true);
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else {
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AddItem(item = new MemoryBarMenuItem(infos.team_name,
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infos.team_info.team, infos.team_icon, true, NULL));
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}
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int m = item->UpdateSituation(committedMemory);
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if (m >= 0) {
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total += m;
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item = NULL;
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} else
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fTeamList[j] = -1;
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}
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}
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}
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if (item) {
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RemoveItem(item);
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delete item;
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}
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// Delete the items that haven't been recycled.
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if (firstRecycle < lastRecycle) {
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RemoveItems(IndexOf(fRecycleList[firstRecycle].item),
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lastRecycle - firstRecycle, true);
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}
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fLastTotalTime = system_time();
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KernelMemoryBarMenuItem *kernelItem;
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if ((kernelItem = (KernelMemoryBarMenuItem*)ItemAt(0)) != NULL)
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kernelItem->UpdateSituation(committedMemory, cachedMemory);
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Window()->EndViewTransaction();
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Window()->Flush();
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}
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