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wine/dlls/comctl32/progress.c

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/*
* Progress control
*
* Copyright 1997, 2002 Dimitrie O. Paun
* Copyright 1998, 1999 Eric Kohl
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* NOTE
*
* This code was audited for completeness against the documented features
* of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
*
* Unless otherwise noted, we belive this code to be complete, as per
* the specification mentioned above.
* If you discover missing features, or bugs, please note them below.
*
* TODO
* --support PBS_MARQUE
*
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "comctl32.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(progress);
typedef struct
{
HWND Self; /* The window handle for this control */
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 Font; /* Handle to font (not unused) */
} PROGRESS_INFO;
/* Control configuration constants */
#define LED_GAP 2
/***********************************************************************
* PROGRESS_Invalidate
*
* Invalide the range between old and new pos.
*/
static void PROGRESS_Invalidate( PROGRESS_INFO *infoPtr, INT old, INT new )
{
LONG style = GetWindowLongW (infoPtr->Self, GWL_STYLE);
RECT rect;
int oldPos, newPos, ledWidth;
GetClientRect (infoPtr->Self, &rect);
InflateRect(&rect, -1, -1);
if (style & PBS_VERTICAL)
{
oldPos = rect.bottom - MulDiv (old - infoPtr->MinVal, rect.bottom - rect.top,
infoPtr->MaxVal - infoPtr->MinVal);
newPos = rect.bottom - MulDiv (new - infoPtr->MinVal, rect.bottom - rect.top,
infoPtr->MaxVal - infoPtr->MinVal);
ledWidth = MulDiv (rect.right - rect.left, 2, 3);
rect.top = min( oldPos, newPos );
rect.bottom = max( oldPos, newPos );
if (!(style & PBS_SMOOTH)) rect.top -= ledWidth;
InvalidateRect( infoPtr->Self, &rect, oldPos < newPos );
}
else
{
oldPos = rect.left + MulDiv (old - infoPtr->MinVal, rect.right - rect.left,
infoPtr->MaxVal - infoPtr->MinVal);
newPos = rect.left + MulDiv (new - infoPtr->MinVal, rect.right - rect.left,
infoPtr->MaxVal - infoPtr->MinVal);
ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
rect.left = min( oldPos, newPos );
rect.right = max( oldPos, newPos );
if (!(style & PBS_SMOOTH)) rect.right += ledWidth;
InvalidateRect( infoPtr->Self, &rect, oldPos > newPos );
}
}
/***********************************************************************
* PROGRESS_Draw
* Draws the progress bar.
*/
static LRESULT PROGRESS_Draw (PROGRESS_INFO *infoPtr, HDC hdc)
{
HBRUSH hbrBar, hbrBk;
int rightBar, rightMost, ledWidth;
RECT rect;
DWORD dwStyle;
TRACE("(infoPtr=%p, hdc=%p)\n", infoPtr, hdc);
/* get the required bar brush */
if (infoPtr->ColorBar == CLR_DEFAULT)
hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
else
hbrBar = CreateSolidBrush (infoPtr->ColorBar);
if (infoPtr->ColorBk == CLR_DEFAULT)
hbrBk = GetSysColorBrush(COLOR_3DFACE);
else
hbrBk = CreateSolidBrush(infoPtr->ColorBk);
/* get client rectangle */
GetClientRect (infoPtr->Self, &rect);
FrameRect( hdc, &rect, hbrBk );
InflateRect(&rect, -1, -1);
/* get the window style */
dwStyle = GetWindowLongW (infoPtr->Self, 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)
{
INT old_top = rect.top;
rect.top = rightBar;
FillRect(hdc, &rect, hbrBar);
rect.bottom = rect.top;
rect.top = old_top;
FillRect(hdc, &rect, hbrBk);
}
else
{
INT old_right = rect.right;
rect.right = rightBar;
FillRect(hdc, &rect, hbrBar);
rect.left = rect.right;
rect.right = old_right;
FillRect(hdc, &rect, hbrBk);
}
} 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;
rect.top -= LED_GAP;
if (rect.top <= rightBar) break;
FillRect(hdc, &rect, hbrBk);
rect.bottom = rect.top;
}
rect.top = rightMost;
FillRect(hdc, &rect, hbrBk);
} 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;
rect.right += LED_GAP;
if (rect.right >= rightBar) break;
FillRect(hdc, &rect, hbrBk);
rect.left = rect.right;
}
rect.right = rightMost;
FillRect(hdc, &rect, hbrBk);
}
}
/* delete bar brush */
if (infoPtr->ColorBar != CLR_DEFAULT) DeleteObject (hbrBar);
if (infoPtr->ColorBk != CLR_DEFAULT) DeleteObject (hbrBk);
return 0;
}
/***********************************************************************
* PROGRESS_Paint
* Draw the progress bar. The background need not be erased.
* If dc!=0, it draws on it
*/
static LRESULT PROGRESS_Paint (PROGRESS_INFO *infoPtr, HDC hdc)
{
PAINTSTRUCT ps;
if (hdc) return PROGRESS_Draw (infoPtr, hdc);
hdc = BeginPaint (infoPtr->Self, &ps);
PROGRESS_Draw (infoPtr, hdc);
EndPaint (infoPtr->Self, &ps);
return 0;
}
/***********************************************************************
* PROGRESS_CoercePos
* Makes sure the current position (CurVal) is within bounds.
*/
static void PROGRESS_CoercePos(PROGRESS_INFO *infoPtr)
{
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 (PROGRESS_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
{
HFONT hOldFont = infoPtr->Font;
infoPtr->Font = hFont;
/* Since infoPtr->Font is not used, there is no need for repaint */
return hOldFont;
}
static DWORD PROGRESS_SetRange (PROGRESS_INFO *infoPtr, int low, int high)
{
DWORD res = MAKELONG(LOWORD(infoPtr->MinVal), LOWORD(infoPtr->MaxVal));
/* if nothing changes, simply return */
if(infoPtr->MinVal == low && infoPtr->MaxVal == high) return res;
infoPtr->MinVal = low;
infoPtr->MaxVal = high;
PROGRESS_CoercePos(infoPtr);
InvalidateRect(infoPtr->Self, NULL, TRUE);
return res;
}
/***********************************************************************
* ProgressWindowProc
*/
static LRESULT WINAPI ProgressWindowProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
PROGRESS_INFO *infoPtr;
TRACE("hwnd=%p msg=%04x wparam=%x lParam=%lx\n", hwnd, message, wParam, lParam);
infoPtr = (PROGRESS_INFO *)GetWindowLongW(hwnd, 0);
if (!infoPtr && message != WM_CREATE)
return DefWindowProcW( hwnd, message, wParam, lParam );
switch(message) {
case WM_CREATE:
{
DWORD dwExStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
dwExStyle &= ~(WS_EX_CLIENTEDGE | WS_EX_WINDOWEDGE);
dwExStyle |= WS_EX_STATICEDGE;
SetWindowLongW (hwnd, GWL_EXSTYLE, dwExStyle);
/* Force recalculation of a non-client area */
SetWindowPos(hwnd, 0, 0, 0, 0, 0,
SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
/* allocate memory for info struct */
infoPtr = (PROGRESS_INFO *)Alloc (sizeof(PROGRESS_INFO));
if (!infoPtr) return -1;
SetWindowLongW (hwnd, 0, (DWORD)infoPtr);
/* initialize the info struct */
infoPtr->Self = hwnd;
infoPtr->MinVal = 0;
infoPtr->MaxVal = 100;
infoPtr->CurVal = 0;
infoPtr->Step = 10;
infoPtr->ColorBar = CLR_DEFAULT;
infoPtr->ColorBk = CLR_DEFAULT;
infoPtr->Font = 0;
TRACE("Progress Ctrl creation, hwnd=%p\n", hwnd);
return 0;
}
case WM_DESTROY:
TRACE("Progress Ctrl destruction, hwnd=%p\n", hwnd);
Free (infoPtr);
SetWindowLongW(hwnd, 0, 0);
return 0;
case WM_GETFONT:
return (LRESULT)infoPtr->Font;
case WM_SETFONT:
return (LRESULT)PROGRESS_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
case WM_PAINT:
return PROGRESS_Paint (infoPtr, (HDC)wParam);
case PBM_DELTAPOS:
{
INT oldVal;
oldVal = infoPtr->CurVal;
if(wParam != 0) {
infoPtr->CurVal += (INT)wParam;
PROGRESS_CoercePos (infoPtr);
TRACE("PBM_DELTAPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
}
return oldVal;
}
case PBM_SETPOS:
{
UINT oldVal;
oldVal = infoPtr->CurVal;
if(oldVal != wParam) {
infoPtr->CurVal = (INT)wParam;
PROGRESS_CoercePos(infoPtr);
TRACE("PBM_SETPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
}
return oldVal;
}
case PBM_SETRANGE:
return PROGRESS_SetRange (infoPtr, (int)LOWORD(lParam), (int)HIWORD(lParam));
case PBM_SETSTEP:
{
INT oldStep;
oldStep = infoPtr->Step;
infoPtr->Step = (INT)wParam;
return oldStep;
}
case PBM_STEPIT:
{
INT oldVal;
oldVal = infoPtr->CurVal;
infoPtr->CurVal += infoPtr->Step;
if(infoPtr->CurVal > infoPtr->MaxVal)
infoPtr->CurVal = infoPtr->MinVal;
if(oldVal != infoPtr->CurVal)
{
TRACE("PBM_STEPIT: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
}
return oldVal;
}
case PBM_SETRANGE32:
return PROGRESS_SetRange (infoPtr, (int)wParam, (int)lParam);
case PBM_GETRANGE:
if (lParam) {
((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
}
return wParam ? infoPtr->MinVal : infoPtr->MaxVal;
case PBM_GETPOS:
return infoPtr->CurVal;
case PBM_SETBARCOLOR:
infoPtr->ColorBar = (COLORREF)lParam;
InvalidateRect(hwnd, NULL, TRUE);
return 0;
case PBM_SETBKCOLOR:
infoPtr->ColorBk = (COLORREF)lParam;
InvalidateRect(hwnd, NULL, TRUE);
return 0;
default:
if ((message >= WM_USER) && (message < WM_APP))
ERR("unknown msg %04x wp=%04x lp=%08lx\n", message, wParam, lParam );
return DefWindowProcW( hwnd, message, wParam, lParam );
}
}
/***********************************************************************
* PROGRESS_Register [Internal]
*
* Registers the progress bar window class.
*/
VOID PROGRESS_Register (void)
{
WNDCLASSW wndClass;
ZeroMemory (&wndClass, sizeof(wndClass));
wndClass.style = CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
wndClass.lpfnWndProc = (WNDPROC)ProgressWindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof (PROGRESS_INFO *);
wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
wndClass.lpszClassName = PROGRESS_CLASSW;
RegisterClassW (&wndClass);
}
/***********************************************************************
* PROGRESS_Unregister [Internal]
*
* Unregisters the progress bar window class.
*/
VOID PROGRESS_Unregister (void)
{
UnregisterClassW (PROGRESS_CLASSW, NULL);
}
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