Sweden-Number/dlls/comctl32/progress.c

399 lines
10 KiB
C

/*
* Progress control
*
* Copyright 1997 Dimitrie O. Paun
* Copyright 1998, 1999 Eric Kohl
*
*/
#include "winbase.h"
#include "commctrl.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(progress);
typedef struct
{
INT CurVal; /* Current progress value */
INT MinVal; /* Minimum progress value */
INT MaxVal; /* Maximum progress value */
INT Step; /* Step to use on PMB_STEPIT */
COLORREF ColorBar; /* Bar color */
COLORREF ColorBk; /* Background color */
HFONT hFont; /* Handle to font (not unused) */
} PROGRESS_INFO;
/* Control configuration constants */
#define LED_GAP 2
/* Work constants */
#define UNKNOWN_PARAM(msg, wParam, lParam) WARN(\
"Unknown parameter(s) for message " #msg \
"(%04x): wp=%04x lp=%08lx\n", msg, wParam, lParam);
#define PROGRESS_GetInfoPtr(hwnd) ((PROGRESS_INFO *)GetWindowLongA(hwnd, 0))
/***********************************************************************
* PROGRESS_Draw
* Draws the progress bar.
*/
static void
PROGRESS_Draw (HWND hwnd, HDC hdc)
{
PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
HBRUSH hbrBar, hbrBk;
int rightBar, rightMost, ledWidth;
RECT rect;
DWORD dwStyle;
TRACE("refresh pos=%d min=%d, max=%d\n",
infoPtr->CurVal, infoPtr->MinVal, infoPtr->MaxVal);
/* get the required bar brush */
if (infoPtr->ColorBar == CLR_DEFAULT)
hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
else
hbrBar = CreateSolidBrush (infoPtr->ColorBar);
/* get the required background brush */
if (infoPtr->ColorBk == CLR_DEFAULT)
hbrBk = GetSysColorBrush (COLOR_3DFACE);
else
hbrBk = CreateSolidBrush (infoPtr->ColorBk);
/* get client rectangle */
GetClientRect (hwnd, &rect);
/* draw the background */
FillRect(hdc, &rect, hbrBk);
rect.left++; rect.right--; rect.top++; rect.bottom--;
/* get the window style */
dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
/* compute extent of progress bar */
if (dwStyle & PBS_VERTICAL)
{
rightBar = rect.bottom -
MulDiv(infoPtr->CurVal-infoPtr->MinVal,
rect.bottom - rect.top,
infoPtr->MaxVal-infoPtr->MinVal);
ledWidth = MulDiv ((rect.right - rect.left), 2, 3);
rightMost = rect.top;
}
else
{
rightBar = rect.left +
MulDiv(infoPtr->CurVal-infoPtr->MinVal,
rect.right - rect.left,
infoPtr->MaxVal-infoPtr->MinVal);
ledWidth = MulDiv ((rect.bottom - rect.top), 2, 3);
rightMost = rect.right;
}
/* now draw the bar */
if (dwStyle & PBS_SMOOTH)
{
if (dwStyle & PBS_VERTICAL)
rect.top = rightBar;
else
rect.right = rightBar;
FillRect(hdc, &rect, hbrBar);
}
else
{
if (dwStyle & PBS_VERTICAL)
{
while(rect.bottom > rightBar) {
rect.top = rect.bottom-ledWidth;
if (rect.top < rightMost)
rect.top = rightMost;
FillRect(hdc, &rect, hbrBar);
rect.bottom = rect.top-LED_GAP;
}
}
else {
while(rect.left < rightBar) {
rect.right = rect.left+ledWidth;
if (rect.right > rightMost)
rect.right = rightMost;
FillRect(hdc, &rect, hbrBar);
rect.left = rect.right+LED_GAP;
}
}
}
/* delete bar brush */
if (infoPtr->ColorBar != CLR_DEFAULT)
DeleteObject (hbrBar);
/* delete background brush */
if (infoPtr->ColorBk != CLR_DEFAULT)
DeleteObject (hbrBk);
}
/***********************************************************************
* PROGRESS_Refresh
* Draw the progress bar. The background need not be erased.
*/
static void
PROGRESS_Refresh (HWND hwnd)
{
HDC hdc;
hdc = GetDC (hwnd);
PROGRESS_Draw (hwnd, hdc);
ReleaseDC (hwnd, hdc);
}
/***********************************************************************
* PROGRESS_Paint
* Draw the progress bar. The background need not be erased.
* If dc!=0, it draws on it
*/
static void
PROGRESS_Paint (HWND hwnd)
{
PAINTSTRUCT ps;
HDC hdc;
hdc = BeginPaint (hwnd, &ps);
PROGRESS_Draw (hwnd, hdc);
EndPaint (hwnd, &ps);
}
/***********************************************************************
* PROGRESS_CoercePos
* Makes sure the current position (CUrVal) is within bounds.
*/
static void PROGRESS_CoercePos(HWND hwnd)
{
PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
if(infoPtr->CurVal < infoPtr->MinVal)
infoPtr->CurVal = infoPtr->MinVal;
if(infoPtr->CurVal > infoPtr->MaxVal)
infoPtr->CurVal = infoPtr->MaxVal;
}
/***********************************************************************
* PROGRESS_SetFont
* Set new Font for progress bar
*/
static HFONT
PROGRESS_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
HFONT hOldFont = infoPtr->hFont;
infoPtr->hFont = (HFONT)wParam;
if (LOWORD(lParam))
PROGRESS_Refresh (hwnd);
return hOldFont;
}
/***********************************************************************
* ProgressWindowProc
*/
static LRESULT WINAPI ProgressWindowProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
UINT temp;
if (!infoPtr && (message != WM_CREATE))
return DefWindowProcA( hwnd, message, wParam, lParam );
switch(message)
{
case WM_NCCREATE:
{
DWORD dwExStyle;
dwExStyle = GetWindowLongA (hwnd, GWL_EXSTYLE);
SetWindowLongA (hwnd, GWL_EXSTYLE, dwExStyle | WS_EX_STATICEDGE);
}
return TRUE;
case WM_CREATE:
/* allocate memory for info struct */
infoPtr =
(PROGRESS_INFO *)COMCTL32_Alloc (sizeof(PROGRESS_INFO));
SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
/* initialize the info struct */
infoPtr->MinVal=0;
infoPtr->MaxVal=100;
infoPtr->CurVal=0;
infoPtr->Step=10;
infoPtr->ColorBar=CLR_DEFAULT;
infoPtr->ColorBk=CLR_DEFAULT;
infoPtr->hFont=(HANDLE)NULL;
TRACE("Progress Ctrl creation, hwnd=%04x\n", hwnd);
break;
case WM_DESTROY:
TRACE("Progress Ctrl destruction, hwnd=%04x\n", hwnd);
COMCTL32_Free (infoPtr);
SetWindowLongA(hwnd, 0, 0);
break;
case WM_ERASEBKGND:
/* pretend to erase it here, but we will do it in the paint
function to avoid flicker */
return 1;
case WM_GETFONT:
return (LRESULT)infoPtr->hFont;
case WM_SETFONT:
return PROGRESS_SetFont (hwnd, wParam, lParam);
case WM_PAINT:
PROGRESS_Paint (hwnd);
break;
case PBM_DELTAPOS:
if(lParam)
UNKNOWN_PARAM(PBM_DELTAPOS, wParam, lParam);
temp = infoPtr->CurVal;
if(wParam != 0){
infoPtr->CurVal += (WORD)wParam;
PROGRESS_CoercePos (hwnd);
PROGRESS_Refresh (hwnd);
}
return temp;
case PBM_SETPOS:
if (lParam)
UNKNOWN_PARAM(PBM_SETPOS, wParam, lParam);
temp = infoPtr->CurVal;
if(temp != wParam){
infoPtr->CurVal = (WORD)wParam;
PROGRESS_CoercePos(hwnd);
PROGRESS_Refresh (hwnd);
}
return temp;
case PBM_SETRANGE:
if (wParam)
UNKNOWN_PARAM(PBM_SETRANGE, wParam, lParam);
temp = MAKELONG(infoPtr->MinVal, infoPtr->MaxVal);
if(temp != lParam){
infoPtr->MinVal = LOWORD(lParam);
infoPtr->MaxVal = HIWORD(lParam);
if(infoPtr->MaxVal <= infoPtr->MinVal)
infoPtr->MaxVal = infoPtr->MinVal+1;
PROGRESS_CoercePos(hwnd);
PROGRESS_Refresh (hwnd);
}
return temp;
case PBM_SETSTEP:
if (lParam)
UNKNOWN_PARAM(PBM_SETSTEP, wParam, lParam);
temp = infoPtr->Step;
infoPtr->Step = (WORD)wParam;
return temp;
case PBM_STEPIT:
if (wParam || lParam)
UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
temp = infoPtr->CurVal;
infoPtr->CurVal += infoPtr->Step;
if(infoPtr->CurVal > infoPtr->MaxVal)
infoPtr->CurVal = infoPtr->MinVal;
if(temp != infoPtr->CurVal)
PROGRESS_Refresh (hwnd);
return temp;
case PBM_SETRANGE32:
temp = MAKELONG(infoPtr->MinVal, infoPtr->MaxVal);
if((infoPtr->MinVal != (INT)wParam) ||
(infoPtr->MaxVal != (INT)lParam)) {
infoPtr->MinVal = (INT)wParam;
infoPtr->MaxVal = (INT)lParam;
if(infoPtr->MaxVal <= infoPtr->MinVal)
infoPtr->MaxVal = infoPtr->MinVal+1;
PROGRESS_CoercePos(hwnd);
PROGRESS_Refresh (hwnd);
}
return temp;
case PBM_GETRANGE:
if (lParam){
((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
}
return (wParam) ? infoPtr->MinVal : infoPtr->MaxVal;
case PBM_GETPOS:
if (wParam || lParam)
UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
return (infoPtr->CurVal);
case PBM_SETBARCOLOR:
if (wParam)
UNKNOWN_PARAM(PBM_SETBARCOLOR, wParam, lParam);
infoPtr->ColorBar = (COLORREF)lParam;
PROGRESS_Refresh (hwnd);
break;
case PBM_SETBKCOLOR:
if (wParam)
UNKNOWN_PARAM(PBM_SETBKCOLOR, wParam, lParam);
infoPtr->ColorBk = (COLORREF)lParam;
PROGRESS_Refresh (hwnd);
break;
default:
if (message >= WM_USER)
ERR("unknown msg %04x wp=%04x lp=%08lx\n",
message, wParam, lParam );
return DefWindowProcA( hwnd, message, wParam, lParam );
}
return 0;
}
/***********************************************************************
* PROGRESS_Register [Internal]
*
* Registers the progress bar window class.
*/
VOID
PROGRESS_Register (void)
{
WNDCLASSA wndClass;
ZeroMemory (&wndClass, sizeof( WNDCLASSA));
wndClass.style = CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
wndClass.lpfnWndProc = (WNDPROC)ProgressWindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof (PROGRESS_INFO *);
wndClass.hCursor = LoadCursorA (0, IDC_ARROWA);
wndClass.lpszClassName = PROGRESS_CLASSA;
RegisterClassA (&wndClass);
}
/***********************************************************************
* PROGRESS_Unregister [Internal]
*
* Unregisters the progress bar window class.
*/
VOID
PROGRESS_Unregister (void)
{
UnregisterClassA (PROGRESS_CLASSA, (HINSTANCE)NULL);
}