* Copyright 2000, Georges-Edouard Berenger. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include "KernelMemoryBarMenuItem.h"
#include "Colors.h"
#include "MemoryBarMenu.h"
#include "ProcessController.h"
#include <stdio.h>
#include <Catalog.h>
#include <StringForSize.h>
#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "ProcessController"
KernelMemoryBarMenuItem::KernelMemoryBarMenuItem(system_info& systemInfo)
: BMenuItem(B_TRANSLATE("System resources & caches" B_UTF8_ELLIPSIS), NULL)
{
fLastSum = -1;
fGrenze1 = -1;
fGrenze2 = -1;
fPhysicalMemory = (int64)systemInfo.max_pages * B_PAGE_SIZE / 1024LL;
fCommittedMemory = (int64)systemInfo.used_pages * B_PAGE_SIZE / 1024LL;
fCachedMemory = (int64)systemInfo.cached_pages * B_PAGE_SIZE / 1024LL;
}
void
KernelMemoryBarMenuItem::DrawContent()
{
DrawBar(true);
Menu()->MovePenTo(ContentLocation());
BMenuItem::DrawContent();
}
void
KernelMemoryBarMenuItem::UpdateSituation(int64 committedMemory,
int64 cachedMemory)
{
fCommittedMemory = committedMemory;
fCachedMemory = cachedMemory;
DrawBar(false);
}
void
KernelMemoryBarMenuItem::DrawBar(bool force)
{
bool selected = IsSelected();
BRect frame = Frame();
BMenu* menu = Menu();
rgb_color highColor = menu->HighColor();
BFont font;
menu->GetFont(&font);
BRect cadre = bar_rect(frame, &font);
if (fLastSum < 0)
force = true;
if (force) {
if (selected)
menu->SetHighColor(gFrameColorSelected);
else
menu->SetHighColor(gFrameColor);
menu->StrokeRect (cadre);
}
cadre.InsetBy(1, 1);
BRect r = cadre;
double grenze1 = cadre.left + (cadre.right - cadre.left)
* fCachedMemory / fPhysicalMemory;
double grenze2 = cadre.left + (cadre.right - cadre.left)
* fCommittedMemory / fPhysicalMemory;
if (grenze1 > cadre.right)
grenze1 = cadre.right;
if (grenze2 > cadre.right)
grenze2 = cadre.right;
r.right = grenze1;
if (!force)
r.left = fGrenze1;
if (r.left < r.right) {
if (selected)
menu->SetHighColor(gKernelColorSelected);
else
menu->SetHighColor(gKernelColor);
menu->FillRect (r);
}
r.left = grenze1;
r.right = grenze2;
if (!force) {
if (fGrenze2 > r.left && r.left >= fGrenze1)
r.left = fGrenze2;
if (fGrenze1 < r.right && r.right <= fGrenze2)
r.right = fGrenze1;
}
if (r.left < r.right) {
if (selected)
menu->SetHighColor(tint_color (kLavender, B_HIGHLIGHT_BACKGROUND_TINT));
else
menu->SetHighColor(kLavender);
menu->FillRect (r);
}
r.left = grenze2;
r.right = cadre.right;
if (!force)
r.right = fGrenze2;
if (r.left < r.right) {
if (selected)
menu->SetHighColor(gWhiteSelected);
else
menu->SetHighColor(kWhite);
menu->FillRect(r);
}
menu->SetHighColor(highColor);
fGrenze1 = grenze1;
fGrenze2 = grenze2;
double sum = fCachedMemory * FLT_MAX + fCommittedMemory;
if (force || sum != fLastSum) {
if (selected) {
menu->SetLowColor(gMenuBackColorSelected);
menu->SetHighColor(gMenuBackColorSelected);
} else {
menu->SetLowColor(gMenuBackColor);
menu->SetHighColor(gMenuBackColor);
}
BRect trect(cadre.left - kMargin - gMemoryTextWidth, frame.top,
cadre.left - kMargin, frame.bottom);
menu->FillRect(trect);
menu->SetHighColor(highColor);
char infos[128];
BPoint loc(cadre.left, cadre.bottom + 1);
string_for_size(fCommittedMemory * 1024.0, infos, sizeof(infos));
loc.x -= kMargin + gMemoryTextWidth / 2 + menu->StringWidth(infos);
menu->DrawString(infos, loc);
string_for_size(fCachedMemory * 1024.0, infos, sizeof(infos));
loc.x = cadre.left - kMargin - menu->StringWidth(infos);
menu->DrawString(infos, loc);
fLastSum = sum;
}
}
void
KernelMemoryBarMenuItem::GetContentSize(float* _width, float* _height)
{
BMenuItem::GetContentSize(_width, _height);
if (*_height < 16)
*_height = 16;
*_width += 20 + kBarWidth + kMargin + gMemoryTextWidth;
}
