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windows-nt/Source/XPSP1/NT/base/tools/pperf/app/draw.c

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/*++
Copyright (c) 1990 Microsoft Corporation
Module Name:
Draw.c
Abstract:
Win32 application to display performance statictics. This routine implements
graphics output for display windows.
Author:
Mark Enstrom (marke)
Environment:
Win32
Revision History:
10-07-92 Initial version
--*/
//
// set variable to define global variables
//
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <math.h>
#include <errno.h>
#include "pperf.h"
extern WINPERF_INFO WinperfInfo;
extern ULONG NumberOfProcessors, LogIt;
BOOLEAN
FitPerfWindows(
IN HWND hWnd,
IN HDC hDC,
IN PDISPLAY_ITEM DisplayItems
)
/*++
Routine Description:
Calculate all parameters to fit the given number of
windows into the app window. Fill out the data structure
for each sub-window
Arguments:
hDC - Screen context
DisplayItems - List of display structures
NumberOfWindows - Number of sub-windows
Return Value:
Status
Revision History:
02-17-91 Initial code
--*/
{
RECT ClientRect;
int cx,cy;
UINT Index;
int ActiveWindows,IndexX,IndexY;
int WindowsX,WindowsY,WindowWidth,WindowHeight;
int LastRowWidth,LoopWidth;
double fWindowsX,fActiveWindows,fcx,fcy;
PDISPLAY_ITEM pPerf;
//
// Find out the client area bounds
//
GetClientRect(hWnd,&ClientRect);
cx = ClientRect.right;
cy = ClientRect.bottom - 2; // subtract 2 to give a little more border
//
// Find out how many perf windows are active
//
ActiveWindows = 0;
for (pPerf=DisplayItems; pPerf; pPerf = pPerf->Next) {
if (pPerf->Display == TRUE) {
ActiveWindows++;
}
}
//
// Return if there are no active windows to display
//
if (ActiveWindows == 0) {
return(TRUE);
}
//
// Now convert the window dimensions to floating point and
// then take the square root of the window dimension to find
// out the number of windows in the x direction
//
fActiveWindows = 1.0 * ActiveWindows;
fcx = 1.0 * cx;
fcy = 1.0 * cy;
if (fcy != 0.0) {
fWindowsX = sqrt((fcx * fActiveWindows) / fcy);
} else {
//
// If fcy = 0 then return since this is an error condition that
// would cause a divide by zero.
//
return(FALSE);
}
//
// convert back to integer
//
WindowsX = (int)fWindowsX;
if (WindowsX == 0) {
WindowsX = 1;
} else if (WindowsX > ActiveWindows) {
WindowsX = ActiveWindows;
}
WindowsY = ActiveWindows / WindowsX;
//
// Add on extra line to Y to take care of the left over windows ie:
// if there are 15 active windows and the x number = 7 then y = 2 with 1
// left over.
//
Index = ActiveWindows - (WindowsX * WindowsY);
if (Index > 0) {
WindowsY++;
LastRowWidth = cx / Index;
} else {
LastRowWidth = cx / WindowsX;
}
WindowWidth = cx / WindowsX;
WindowHeight = cy / WindowsY;
//
// Assign positions for each active window
//
pPerf = DisplayItems;
for (IndexY=0;IndexY<WindowsY;IndexY++) {
for (IndexX=0;IndexX<WindowsX;IndexX++) {
//
// Find the next active display item
//
while (pPerf->Display != TRUE && pPerf) {
pPerf = pPerf->Next;
}
if (!pPerf) {
break;
}
//
// Add y fixup for last row
//
if (IndexY == WindowsY - 1) {
LoopWidth = LastRowWidth;
} else {
LoopWidth = WindowWidth;
}
pPerf->PositionX = LoopWidth * IndexX;
pPerf->PositionY = WindowHeight * IndexY + 1; // +1 for more top border
pPerf->Width = LoopWidth - 1;
pPerf->Height = WindowHeight - 1;
//
// Last Column fix-up to use all of window.
//
if (IndexX == WindowsX - 1) {
pPerf->Width = cx - pPerf->PositionX - 1;
}
pPerf = pPerf->Next;
if (!pPerf) {
break;
}
}
if (!pPerf) {
break;
}
}
return(TRUE);
}
VOID
CalcDrawFrame(
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Calculate all borders for graphics windows
Arguments:
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
LONG x1,x2,y1,y2;
LONG gx1,gx2,gy1,gy2;
LONG tx1,tx2,ty1,ty2;
LONG GraphHeight,TextHeight;
BOOLEAN TextWindow;
double fx1,fx2,fy1;
//
// Draw a 3-d stand out box around item window
//
x1 = DisplayItem->PositionX + 2;
x2 = DisplayItem->PositionX + DisplayItem->Width - 2;
y1 = DisplayItem->PositionY + 2;
y2 = DisplayItem->PositionY + DisplayItem->Height - 2;
//
// find out in there is enough space for a text window
//
if ((y2 - y1 - 12) > 30) {
TextWindow = TRUE;
//
// Calculate dimensions for a text window and a graphics window
//
// fx1 = portion of the window - bordres and free space
//
// fx2 = fraction of window used for graphics
//
// fy1 = fraction of winddow used for text
//
fx1 = (y2 - y1 - 10);
fx2 = fx1 * 0.6666;
fy1 = fx1 * 0.3333;
GraphHeight = (LONG)fx2;
TextHeight = (LONG)fy1;
if (TextHeight > 20) {
GraphHeight += TextHeight-20;
TextHeight = 20;
}
//
// Calculate window boundaries
//
gx1 = x1 + 4;
gx2 = x2 - 4;
gy1 = y1 + 4;
gy2 = y1 + 4 + GraphHeight + 1;
tx1 = x1 + 4;
tx2 = x2 - 4;
ty1 = gy2 + 1 + 2 + 1; // border,free space,border
ty2 = gy2 + TextHeight + 1;
} else {
TextWindow = FALSE;
GraphHeight = y2 - y1 - 10;
gx1 = x1 + 4;
gx2 = x2 - 4;
gy1 = y1 + 4;
gy2 = y2 - 4;
tx1 = tx2 = ty1 = ty2 = 0;
}
//
// Fill in structures for drawing text and graphics
//
DisplayItem->Border.left = x1;
DisplayItem->Border.right = x2;
DisplayItem->Border.top = y1;
DisplayItem->Border.bottom = y2;
DisplayItem->GraphBorder.left = gx1;
DisplayItem->GraphBorder.right = gx2;
DisplayItem->GraphBorder.top = gy1;
DisplayItem->GraphBorder.bottom = gy2;
DisplayItem->TextBorder.left = tx1;
DisplayItem->TextBorder.right = tx2;
DisplayItem->TextBorder.top = ty1;
DisplayItem->TextBorder.bottom = ty2;
}
VOID
DrawFrame(
HDC hDC,
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Draw the window frame for a performance window
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
RECT DrawRect;
LONG x1,x2,y1,y2;
LONG gx1,gx2,gy1,gy2;
LONG tx1,tx2,ty1,ty2;
//
// Draw a 3-d stand out box around item window
//
x1 = DisplayItem->Border.left;
x2 = DisplayItem->Border.right;
y1 = DisplayItem->Border.top;
y2 = DisplayItem->Border.bottom;
gx1 = DisplayItem->GraphBorder.left;
gx2 = DisplayItem->GraphBorder.right;
gy1 = DisplayItem->GraphBorder.top;
gy2 = DisplayItem->GraphBorder.bottom;
tx1 = DisplayItem->TextBorder.left;
tx2 = DisplayItem->TextBorder.right;
ty1 = DisplayItem->TextBorder.top;
ty2 = DisplayItem->TextBorder.bottom;
//
// Draw top border in light shade
//
DrawRect.left = x1;
DrawRect.right = x2;
DrawRect.top = y1;
DrawRect.bottom = y1 + 2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
//
// Draw Left border in light shade
//
DrawRect.left = x1;
DrawRect.right = x1 + 2;
DrawRect.top = y1;
DrawRect.bottom = y2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
//
// Draw right border in dark shade
//
DrawRect.left = x2 - 2;
DrawRect.right = x2;
DrawRect.top = y1;
DrawRect.bottom = y2;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// draw bottom in dark shade
//
DrawRect.left = x1;
DrawRect.right = x2;
DrawRect.top = y2-2;
DrawRect.bottom = y2;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// Draw graphics area single border
//
//
// Draw top border in dark shade
//
DrawRect.left = gx1;
DrawRect.right = gx2;
DrawRect.top = gy1;
DrawRect.bottom = gy1+1;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// Draw Left border in Dark shade
//
DrawRect.left = gx1;
DrawRect.right = gx1 + 1;
DrawRect.top = gy1;
DrawRect.bottom = gy2;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// Draw right border in Light shade
//
DrawRect.left = gx2 - 1;
DrawRect.right = gx2;
DrawRect.top = gy1;
DrawRect.bottom = gy2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
//
// draw bottom in Light shade
//
DrawRect.left = gx1;
DrawRect.right = gx2;
DrawRect.top = gy2-1;
DrawRect.bottom = gy2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
if (tx2 > 0) {
//
// Draw top border in Dark shade
//
DrawRect.left = tx1;
DrawRect.right = tx2;
DrawRect.top = ty1;
DrawRect.bottom = ty1 + 1;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// Draw Left border in Dark shade
//
DrawRect.left = tx1;
DrawRect.right = tx1 + 1;
DrawRect.top = ty1;
DrawRect.bottom = ty2;
FillRect(hDC,&DrawRect,WinperfInfo.hDarkBrush);
//
// Draw right border in Light shade
//
DrawRect.left = tx2 - 1;
DrawRect.right = tx2;
DrawRect.top = ty1;
DrawRect.bottom = ty2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
//
// draw bottom in Light shade
//
DrawRect.left = tx1;
DrawRect.right = tx2;
DrawRect.top = ty2-1;
DrawRect.bottom = ty2;
FillRect(hDC,&DrawRect,WinperfInfo.hLightBrush);
}
}
VOID
DrawPerfText(
HDC hDC,
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Draw text into the perf window
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
RECT TextRect;
UCHAR TextStr[50];
ULONG j;
UINT FontSize;
//
// Check that text display is enabled
//
if (DisplayItem->TextBorder.right == 0) {
return;
}
TextRect.left = DisplayItem->TextBorder.left +1;
TextRect.right = DisplayItem->TextBorder.right -1;
TextRect.top = DisplayItem->TextBorder.top +1;
TextRect.bottom = DisplayItem->TextBorder.bottom -1;
FillRect(hDC,&TextRect,WinperfInfo.hBackground);
SetBkColor(hDC,RGB(192,192,192));
//
// Decide which font to draw with
//
FontSize = TextRect.bottom - TextRect.top;
if (FontSize >= 15) {
WinperfInfo.hOldFont = SelectObject(hDC,WinperfInfo.LargeFont);
} else if (FontSize > 10) {
WinperfInfo.hOldFont = SelectObject(hDC,WinperfInfo.MediumFont);
} else {
WinperfInfo.hOldFont = SelectObject(hDC,WinperfInfo.SmallFont);
}
DrawText(
hDC,
DisplayItem->DispName,
DisplayItem->DispNameLen,
&TextRect,
DT_LEFT | DT_VCENTER | DT_SINGLELINE
);
//
// Build the numeric value
//
if (DisplayItem->Mega) {
wsprintf(TextStr," %liK",DisplayItem->DataList[0][0]);
} else {
if (DisplayItem->IsPercent) {
j = wsprintf(TextStr," %03li", DisplayItem->DataList[0][0]);
TextStr[j+1] = 0;
TextStr[j-0] = TextStr[j-1];
TextStr[j-1] = TextStr[j-2];
TextStr[j-2] = '.';
} else {
wsprintf(TextStr," %li",DisplayItem->DataList[0][0]);
}
}
DrawText(
hDC,
TextStr,
strlen(TextStr),
&TextRect,
DT_RIGHT | DT_VCENTER | DT_SINGLELINE
);
SelectObject(hDC,WinperfInfo.hOldFont);
}
VOID
DrawPerfGraph(
HDC hDC,
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Draw graphics into the perf window
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
RECT GraphRect,MemGraphRect;
ULONG Scale,i,j,GraphWidth,GraphHeight,Max;
PULONG pDL;
HPEN pen;
GraphRect.left = DisplayItem->GraphBorder.left + 1;
GraphRect.right = DisplayItem->GraphBorder.right - 1;
GraphRect.top = DisplayItem->GraphBorder.top + 1;
GraphRect.bottom = DisplayItem->GraphBorder.bottom - 1;
GraphWidth = GraphRect.right - GraphRect.left -1;
GraphHeight = GraphRect.bottom - GraphRect.top -1;
//
// Memory bitmap is zero-offset for all windows, add 1 to make fillrect fill out
// to right and bottom edge
//
MemGraphRect.left = 0;
MemGraphRect.right = GraphWidth +1;
MemGraphRect.top = 0;
MemGraphRect.bottom = GraphHeight +1;
FillRect(DisplayItem->MemoryDC,&MemGraphRect,WinperfInfo.hBackground);
MemGraphRect.right = GraphWidth;
MemGraphRect.bottom = GraphHeight;
Max = *DisplayItem->MaxToUse;
if (Max == 0) {
Max = 1;
}
//
// calculate scale from data to perf window
//
//
// X scale factor (100 items in x space). Scale can not be less than 1
//
Scale = (GraphWidth -1)/ DATA_LIST_LENGTH;
if (Scale == 0) {
Scale = 1;
}
if (DisplayItem->DisplayMode == DISPLAY_MODE_BREAKDOWN ||
DisplayItem->DisplayMode == DISPLAY_MODE_PER_PROCESSOR) {
for (j=0; j < NumberOfProcessors; j++) {
pen = WinperfInfo.hPPen[j];
SelectObject(DisplayItem->MemoryDC,pen);
pDL = DisplayItem->DataList[j+1];
MoveToEx(DisplayItem->MemoryDC,
MemGraphRect.right,
MemGraphRect.bottom - (pDL[0] * GraphHeight) / Max,
(LPPOINT)NULL);
for (i=1;((i<DATA_LIST_LENGTH) && i*Scale < GraphWidth);i++) {
LineTo(DisplayItem->MemoryDC,
MemGraphRect.right - Scale * i,
MemGraphRect.bottom - (pDL[i] * GraphHeight)/Max);
}
}
}
if (DisplayItem->DisplayMode == DISPLAY_MODE_TOTAL ||
DisplayItem->DisplayMode == DISPLAY_MODE_BREAKDOWN) {
SelectObject(DisplayItem->MemoryDC,WinperfInfo.hBluePen);
pDL = DisplayItem->DataList[0];
MoveToEx(DisplayItem->MemoryDC,
MemGraphRect.right,
MemGraphRect.bottom - (pDL[0] * GraphHeight)/Max,
(LPPOINT)NULL);
for (i=1;((i<DATA_LIST_LENGTH) && i*Scale < GraphWidth);i++) {
LineTo(DisplayItem->MemoryDC,
MemGraphRect.right - Scale * i,
MemGraphRect.bottom - (pDL[i] * GraphHeight)/Max);
}
}
BitBlt(
hDC,
GraphRect.left,
GraphRect.top,
GraphWidth+1,
GraphHeight+1,
DisplayItem->MemoryDC,
0,
0,
SRCCOPY);
}
VOID
ShiftPerfGraph(
HDC hDC,
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Shift memory bitmap 1 location left then draw the 1 new data point.
BitBlt this to the screen.
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
RECT GraphRect,MemGraphRect,FillArea;
ULONG Scale,j,GraphWidth,GraphHeight,Max;
PULONG pDL;
HPEN pen;
GraphRect.left = DisplayItem->GraphBorder.left + 1;
GraphRect.right = DisplayItem->GraphBorder.right - 1;
GraphRect.top = DisplayItem->GraphBorder.top + 1;
GraphRect.bottom = DisplayItem->GraphBorder.bottom - 1;
GraphWidth = GraphRect.right - GraphRect.left -1;
GraphHeight = GraphRect.bottom - GraphRect.top -1;
//
// Memory bitmap is zero-offset for all windows, add 1 to make fillrect fill out
// to right and bottom edge
//
MemGraphRect.left = 0;
MemGraphRect.right = GraphWidth;
MemGraphRect.top = 0;
MemGraphRect.bottom = GraphHeight;
Max = *DisplayItem->MaxToUse;
if (Max == 0) {
Max = 1;
}
//
// calculate scale from data to perf window
//
// X scale factor (100 items in x space). Scale can not be less than 1
//
Scale = (GraphWidth -1)/ DATA_LIST_LENGTH;
if (Scale == 0) {
Scale = 1;
}
//
// Shift memory image left by scale
//
BitBlt( DisplayItem->MemoryDC,
0,
0,
GraphWidth+1 - Scale,
GraphHeight+1,
DisplayItem->MemoryDC,
Scale,
0,
SRCCOPY);
//
// Fill The new area on the right of the screen
//
FillArea.left = GraphWidth +1 - Scale;
FillArea.right = GraphWidth +1;
FillArea.top = 0;
FillArea.bottom = GraphHeight +1;
FillRect(DisplayItem->MemoryDC,&FillArea,WinperfInfo.hBackground);
if (DisplayItem->DisplayMode == DISPLAY_MODE_BREAKDOWN ||
DisplayItem->DisplayMode == DISPLAY_MODE_PER_PROCESSOR) {
for (j=0; j < NumberOfProcessors; j++) {
pen = WinperfInfo.hPPen[j];
SelectObject(DisplayItem->MemoryDC,pen);
pDL = DisplayItem->DataList[j+1];
MoveToEx(DisplayItem->MemoryDC,
MemGraphRect.right,
MemGraphRect.bottom - (pDL[0] * GraphHeight)/ Max,
(LPPOINT)NULL);
LineTo(DisplayItem->MemoryDC,
MemGraphRect.right - Scale,
MemGraphRect.bottom - (pDL[1] * GraphHeight)/ Max);
}
}
if (DisplayItem->DisplayMode == DISPLAY_MODE_TOTAL ||
DisplayItem->DisplayMode == DISPLAY_MODE_BREAKDOWN) {
SelectObject(DisplayItem->MemoryDC,WinperfInfo.hBluePen);
pDL = DisplayItem->DataList[0];
MoveToEx(DisplayItem->MemoryDC,
MemGraphRect.right,
MemGraphRect.bottom - (pDL[0] * GraphHeight)/Max,
(LPPOINT)NULL);
LineTo(DisplayItem->MemoryDC,
MemGraphRect.right - Scale,
MemGraphRect.bottom - (pDL[1] * GraphHeight)/Max);
}
BitBlt(
hDC,
GraphRect.left,
GraphRect.top,
GraphWidth+1,
GraphHeight+1,
DisplayItem->MemoryDC,
0,
0,
SRCCOPY);
}
BOOLEAN
CreateMemoryContext(
HDC hDC,
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Create a memory context and a memory bitmap for each perf window
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
int Width;
int Height;
if (DisplayItem->Display == TRUE) {
//
// Calculate width of memory bitmap needed
//
Width = DisplayItem->GraphBorder.right - DisplayItem->GraphBorder.left;
Height = DisplayItem->GraphBorder.bottom - DisplayItem->GraphBorder.top;
if ((Width<=0) || (Height <= 0)) {
//
// Disable this window that is to small to be seen
//
//DisplayItem->Display = FALSE;
//return(TRUE);
//
// make a fake width and height
//
Width = 1;
Height = 1;
}
//
// Create DC and Bitmap
//
DisplayItem->MemoryDC = CreateCompatibleDC(hDC);
if (DisplayItem->MemoryDC == NULL) {
return(FALSE);
}
DisplayItem->MemoryBitmap = CreateCompatibleBitmap(hDC,Width,Height);
if (DisplayItem->MemoryBitmap == 0) {
return(FALSE);
}
SelectObject(DisplayItem->MemoryDC,DisplayItem->MemoryBitmap);
}
return(TRUE);
}
VOID
DeleteMemoryContext(
PDISPLAY_ITEM DisplayItem
)
/*++
Routine Description:
Delete memory bitmap and context
Arguments:
hDC - Device Context for window
DisplayItem - Data structure with all perf window info
Return Value:
status of operation
Revision History:
03-21-91 Initial code
--*/
{
if (DisplayItem->MemoryDC != NULL) {
DeleteDC(DisplayItem->MemoryDC);
}
if (DisplayItem->MemoryBitmap != NULL) {
DeleteObject(DisplayItem->MemoryBitmap);
}
}

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