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#include <PalmOS.h>
#include "start.h"
#include "forms.h"
/***********************************************************************
*
* FUNCTION: SystemInfoFormInit
* FUNCTION: SystemInfoFormHandleEvent
*
* DESCRIPTION:
*
* REVISION HISTORY:
*
*
***********************************************************************/
static UInt32 GetStackSize() {
MemPtr startPP, endPP;
SysGetStackInfo(&startPP, &endPP);
return ((Char *)endPP - (Char *)startPP) / 1024L;
}
void GetMemory(UInt32* storageMemoryP, UInt32* dynamicMemoryP, UInt32 *storageFreeP, UInt32 *dynamicFreeP) {
UInt32 free, max;
Int16 i;
Int16 nCards;
UInt16 cardNo;
UInt16 heapID;
UInt32 storageMemory = 0;
UInt32 dynamicMemory = 0;
UInt32 storageFree = 0;
UInt32 dynamicFree = 0;
// Iterate through each card to support devices with multiple cards.
nCards = MemNumCards();
for (cardNo = 0; cardNo < nCards; cardNo++) {
// Iterate through the RAM heaps on a card (excludes ROM).
for (i=0; i< MemNumRAMHeaps(cardNo); i++) {
// Obtain the ID of the heap.
heapID = MemHeapID(cardNo, i);
// Calculate the total memory and free memory of the heap.
MemHeapFreeBytes(heapID, &free, &max);
// If the heap is dynamic, increment the dynamic memory total.
if (MemHeapDynamic(heapID)) {
dynamicMemory += MemHeapSize(heapID);
dynamicFree += free;
// The heap is nondynamic (storage ?).
} else {
storageMemory += MemHeapSize(heapID);
storageFree += free;
}
}
}
// Reduce the stats to KB. Round the results.
dynamicMemory = dynamicMemory / 1024L;
storageMemory = storageMemory / 1024L;
dynamicFree = dynamicFree / 1024L;
storageFree = storageFree / 1024L;
if (dynamicMemoryP) *dynamicMemoryP = dynamicMemory;
if (storageMemoryP) *storageMemoryP = storageMemory;
if (dynamicFreeP) *dynamicFreeP = dynamicFree;
if (storageFreeP) *storageFreeP = storageFree;
}
static void SystemInfoFormInit() {
FormPtr frmP;
Coord x;
UInt32 dm, sm, df, sf, stack;
Char num[10];
GetMemory(&sm, &dm, &sf, &df);
stack = GetStackSize();
frmP = FrmGetActiveForm();
FrmDrawForm(frmP);
WinSetTextColor(255);
FntSetFont(stdFont);
StrIToA(num, dm);
x = 149 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 30);
StrIToA(num, sm);
x = 149 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 42);
StrIToA(num, stack);
x = 149 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 54);
StrIToA(num, df);
x = 109 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 30);
StrIToA(num, sf);
x = 109 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 42);
StrCopy(num,"-");
x = 109 - FntCharsWidth(num, StrLen(num));
WinDrawChars(num, StrLen(num), x, 54);
}
Boolean SystemInfoFormHandleEvent(EventPtr eventP) {
Boolean handled = false;
switch (eventP->eType) {
case frmOpenEvent:
SystemInfoFormInit();
handled = true;
break;
case ctlSelectEvent:
// OK button only
FrmReturnToMain();
handled = true;
break;
default:
break;
}
return handled;
}
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