1855 lines
58 KiB
C
1855 lines
58 KiB
C
/*
|
|
* Scrollbar control
|
|
*
|
|
* Copyright 1993 Martin Ayotte
|
|
* Copyright 1994, 1996 Alexandre Julliard
|
|
*/
|
|
|
|
#include "windef.h"
|
|
#include "wingdi.h"
|
|
#include "wine/winuser16.h"
|
|
#include "controls.h"
|
|
#include "win.h"
|
|
#include "debugtools.h"
|
|
#include "user.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(scroll);
|
|
|
|
typedef struct
|
|
{
|
|
INT CurVal; /* Current scroll-bar value */
|
|
INT MinVal; /* Minimum scroll-bar value */
|
|
INT MaxVal; /* Maximum scroll-bar value */
|
|
INT Page; /* Page size of scroll bar (Win32) */
|
|
UINT flags; /* EnableScrollBar flags */
|
|
} SCROLLBAR_INFO;
|
|
|
|
|
|
static HBITMAP hUpArrow;
|
|
static HBITMAP hDnArrow;
|
|
static HBITMAP hLfArrow;
|
|
static HBITMAP hRgArrow;
|
|
static HBITMAP hUpArrowD;
|
|
static HBITMAP hDnArrowD;
|
|
static HBITMAP hLfArrowD;
|
|
static HBITMAP hRgArrowD;
|
|
static HBITMAP hUpArrowI;
|
|
static HBITMAP hDnArrowI;
|
|
static HBITMAP hLfArrowI;
|
|
static HBITMAP hRgArrowI;
|
|
|
|
#define TOP_ARROW(flags,pressed) \
|
|
(((flags)&ESB_DISABLE_UP) ? hUpArrowI : ((pressed) ? hUpArrowD:hUpArrow))
|
|
#define BOTTOM_ARROW(flags,pressed) \
|
|
(((flags)&ESB_DISABLE_DOWN) ? hDnArrowI : ((pressed) ? hDnArrowD:hDnArrow))
|
|
#define LEFT_ARROW(flags,pressed) \
|
|
(((flags)&ESB_DISABLE_LEFT) ? hLfArrowI : ((pressed) ? hLfArrowD:hLfArrow))
|
|
#define RIGHT_ARROW(flags,pressed) \
|
|
(((flags)&ESB_DISABLE_RIGHT) ? hRgArrowI : ((pressed) ? hRgArrowD:hRgArrow))
|
|
|
|
|
|
/* Minimum size of the rectangle between the arrows */
|
|
#define SCROLL_MIN_RECT 4
|
|
|
|
/* Minimum size of the thumb in pixels */
|
|
#define SCROLL_MIN_THUMB 6
|
|
|
|
/* Overlap between arrows and thumb */
|
|
#define SCROLL_ARROW_THUMB_OVERLAP ((TWEAK_WineLook == WIN31_LOOK) ? 1 : 0)
|
|
|
|
/* Delay (in ms) before first repetition when holding the button down */
|
|
#define SCROLL_FIRST_DELAY 200
|
|
|
|
/* Delay (in ms) between scroll repetitions */
|
|
#define SCROLL_REPEAT_DELAY 50
|
|
|
|
/* Scroll timer id */
|
|
#define SCROLL_TIMER 0
|
|
|
|
/* Scroll-bar hit testing */
|
|
enum SCROLL_HITTEST
|
|
{
|
|
SCROLL_NOWHERE, /* Outside the scroll bar */
|
|
SCROLL_TOP_ARROW, /* Top or left arrow */
|
|
SCROLL_TOP_RECT, /* Rectangle between the top arrow and the thumb */
|
|
SCROLL_THUMB, /* Thumb rectangle */
|
|
SCROLL_BOTTOM_RECT, /* Rectangle between the thumb and the bottom arrow */
|
|
SCROLL_BOTTOM_ARROW /* Bottom or right arrow */
|
|
};
|
|
|
|
/* What to do after SCROLL_SetScrollInfo() */
|
|
#define SA_SSI_HIDE 0x0001
|
|
#define SA_SSI_SHOW 0x0002
|
|
#define SA_SSI_REFRESH 0x0004
|
|
#define SA_SSI_REPAINT_ARROWS 0x0008
|
|
|
|
/* Thumb-tracking info */
|
|
static HWND SCROLL_TrackingWin = 0;
|
|
static INT SCROLL_TrackingBar = 0;
|
|
static INT SCROLL_TrackingPos = 0;
|
|
static INT SCROLL_TrackingVal = 0;
|
|
/* Hit test code of the last button-down event */
|
|
static enum SCROLL_HITTEST SCROLL_trackHitTest;
|
|
static BOOL SCROLL_trackVertical;
|
|
|
|
/* Is the moving thumb being displayed? */
|
|
static BOOL SCROLL_MovingThumb = FALSE;
|
|
|
|
/* Local functions */
|
|
static BOOL SCROLL_ShowScrollBar( HWND hwnd, INT nBar,
|
|
BOOL fShowH, BOOL fShowV );
|
|
static INT SCROLL_SetScrollInfo( HWND hwnd, INT nBar,
|
|
const SCROLLINFO *info, INT *action );
|
|
static void SCROLL_DrawInterior_9x( HWND hwnd, HDC hdc, INT nBar,
|
|
RECT *rect, INT arrowSize,
|
|
INT thumbSize, INT thumbPos,
|
|
UINT flags, BOOL vertical,
|
|
BOOL top_selected, BOOL bottom_selected );
|
|
static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
|
|
|
|
|
|
/*********************************************************************
|
|
* scrollbar class descriptor
|
|
*/
|
|
const struct builtin_class_descr SCROLL_builtin_class =
|
|
{
|
|
"ScrollBar", /* name */
|
|
CS_GLOBALCLASS | CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */
|
|
NULL, /* procA (winproc is Unicode only) */
|
|
ScrollBarWndProc, /* procW */
|
|
sizeof(SCROLLBAR_INFO), /* extra */
|
|
IDC_ARROWA, /* cursor */
|
|
0 /* brush */
|
|
};
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_LoadBitmaps
|
|
*/
|
|
static void SCROLL_LoadBitmaps(void)
|
|
{
|
|
hUpArrow = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROW) );
|
|
hDnArrow = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROW) );
|
|
hLfArrow = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROW) );
|
|
hRgArrow = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROW) );
|
|
hUpArrowD = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROWD) );
|
|
hDnArrowD = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROWD) );
|
|
hLfArrowD = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROWD) );
|
|
hRgArrowD = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROWD) );
|
|
hUpArrowI = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROWI) );
|
|
hDnArrowI = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROWI) );
|
|
hLfArrowI = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROWI) );
|
|
hRgArrowI = LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROWI) );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_GetScrollInfo
|
|
*/
|
|
static SCROLLBAR_INFO *SCROLL_GetScrollInfo( HWND hwnd, INT nBar )
|
|
{
|
|
SCROLLBAR_INFO *infoPtr;
|
|
WND *wndPtr = WIN_FindWndPtr( hwnd );
|
|
|
|
if (!wndPtr) return NULL;
|
|
switch(nBar)
|
|
{
|
|
case SB_HORZ: infoPtr = (SCROLLBAR_INFO *)wndPtr->pHScroll; break;
|
|
case SB_VERT: infoPtr = (SCROLLBAR_INFO *)wndPtr->pVScroll; break;
|
|
case SB_CTL: infoPtr = (SCROLLBAR_INFO *)wndPtr->wExtra; break;
|
|
default:
|
|
WIN_ReleaseWndPtr( wndPtr );
|
|
return NULL;
|
|
}
|
|
|
|
if (!infoPtr) /* Create the info structure if needed */
|
|
{
|
|
if ((infoPtr = HeapAlloc( GetProcessHeap(), 0, sizeof(SCROLLBAR_INFO) )))
|
|
{
|
|
infoPtr->MinVal = infoPtr->CurVal = infoPtr->Page = 0;
|
|
infoPtr->MaxVal = 100;
|
|
infoPtr->flags = ESB_ENABLE_BOTH;
|
|
if (nBar == SB_HORZ) wndPtr->pHScroll = infoPtr;
|
|
else wndPtr->pVScroll = infoPtr;
|
|
}
|
|
if (!hUpArrow) SCROLL_LoadBitmaps();
|
|
}
|
|
WIN_ReleaseWndPtr( wndPtr );
|
|
return infoPtr;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_GetScrollBarRect
|
|
*
|
|
* Compute the scroll bar rectangle, in drawing coordinates (i.e. client
|
|
* coords for SB_CTL, window coords for SB_VERT and SB_HORZ).
|
|
* 'arrowSize' returns the width or height of an arrow (depending on
|
|
* the orientation of the scrollbar), 'thumbSize' returns the size of
|
|
* the thumb, and 'thumbPos' returns the position of the thumb
|
|
* relative to the left or to the top.
|
|
* Return TRUE if the scrollbar is vertical, FALSE if horizontal.
|
|
*/
|
|
static BOOL SCROLL_GetScrollBarRect( HWND hwnd, INT nBar, RECT *lprect,
|
|
INT *arrowSize, INT *thumbSize,
|
|
INT *thumbPos )
|
|
{
|
|
INT pixels;
|
|
BOOL vertical;
|
|
WND *wndPtr = WIN_FindWndPtr( hwnd );
|
|
|
|
switch(nBar)
|
|
{
|
|
case SB_HORZ:
|
|
lprect->left = wndPtr->rectClient.left - wndPtr->rectWindow.left;
|
|
lprect->top = wndPtr->rectClient.bottom - wndPtr->rectWindow.top;
|
|
lprect->right = wndPtr->rectClient.right - wndPtr->rectWindow.left;
|
|
lprect->bottom = lprect->top + GetSystemMetrics(SM_CYHSCROLL);
|
|
if(wndPtr->dwStyle & WS_BORDER) {
|
|
lprect->left--;
|
|
lprect->right++;
|
|
} else if(wndPtr->dwStyle & WS_VSCROLL)
|
|
lprect->right++;
|
|
vertical = FALSE;
|
|
break;
|
|
|
|
case SB_VERT:
|
|
lprect->left = wndPtr->rectClient.right - wndPtr->rectWindow.left;
|
|
lprect->top = wndPtr->rectClient.top - wndPtr->rectWindow.top;
|
|
lprect->right = lprect->left + GetSystemMetrics(SM_CXVSCROLL);
|
|
lprect->bottom = wndPtr->rectClient.bottom - wndPtr->rectWindow.top;
|
|
if(wndPtr->dwStyle & WS_BORDER) {
|
|
lprect->top--;
|
|
lprect->bottom++;
|
|
} else if(wndPtr->dwStyle & WS_HSCROLL)
|
|
lprect->bottom++;
|
|
vertical = TRUE;
|
|
break;
|
|
|
|
case SB_CTL:
|
|
GetClientRect( hwnd, lprect );
|
|
vertical = ((wndPtr->dwStyle & SBS_VERT) != 0);
|
|
break;
|
|
|
|
default:
|
|
WIN_ReleaseWndPtr(wndPtr);
|
|
return FALSE;
|
|
}
|
|
|
|
if (vertical) pixels = lprect->bottom - lprect->top;
|
|
else pixels = lprect->right - lprect->left;
|
|
|
|
if (pixels <= 2*GetSystemMetrics(SM_CXVSCROLL) + SCROLL_MIN_RECT)
|
|
{
|
|
if (pixels > SCROLL_MIN_RECT)
|
|
*arrowSize = (pixels - SCROLL_MIN_RECT) / 2;
|
|
else
|
|
*arrowSize = 0;
|
|
*thumbPos = *thumbSize = 0;
|
|
}
|
|
else
|
|
{
|
|
SCROLLBAR_INFO *info = SCROLL_GetScrollInfo( hwnd, nBar );
|
|
|
|
*arrowSize = GetSystemMetrics(SM_CXVSCROLL);
|
|
pixels -= (2 * (GetSystemMetrics(SM_CXVSCROLL) - SCROLL_ARROW_THUMB_OVERLAP));
|
|
|
|
if (info->Page)
|
|
{
|
|
*thumbSize = pixels * info->Page / (info->MaxVal-info->MinVal+1);
|
|
if (*thumbSize < SCROLL_MIN_THUMB) *thumbSize = SCROLL_MIN_THUMB;
|
|
}
|
|
else *thumbSize = GetSystemMetrics(SM_CXVSCROLL);
|
|
|
|
if (((pixels -= *thumbSize ) < 0) ||
|
|
((info->flags & ESB_DISABLE_BOTH) == ESB_DISABLE_BOTH))
|
|
{
|
|
/* Rectangle too small or scrollbar disabled -> no thumb */
|
|
*thumbPos = *thumbSize = 0;
|
|
}
|
|
else
|
|
{
|
|
INT max = info->MaxVal - max( info->Page-1, 0 );
|
|
if (info->MinVal >= max)
|
|
*thumbPos = *arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
else
|
|
*thumbPos = *arrowSize - SCROLL_ARROW_THUMB_OVERLAP
|
|
+ pixels * (info->CurVal-info->MinVal) / (max - info->MinVal);
|
|
}
|
|
}
|
|
WIN_ReleaseWndPtr(wndPtr);
|
|
return vertical;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_GetThumbVal
|
|
*
|
|
* Compute the current scroll position based on the thumb position in pixels
|
|
* from the top of the scroll-bar.
|
|
*/
|
|
static UINT SCROLL_GetThumbVal( SCROLLBAR_INFO *infoPtr, RECT *rect,
|
|
BOOL vertical, INT pos )
|
|
{
|
|
INT thumbSize;
|
|
INT pixels = vertical ? rect->bottom-rect->top : rect->right-rect->left;
|
|
|
|
if ((pixels -= 2*(GetSystemMetrics(SM_CXVSCROLL) - SCROLL_ARROW_THUMB_OVERLAP)) <= 0)
|
|
return infoPtr->MinVal;
|
|
|
|
if (infoPtr->Page)
|
|
{
|
|
thumbSize = pixels * infoPtr->Page/(infoPtr->MaxVal-infoPtr->MinVal+1);
|
|
if (thumbSize < SCROLL_MIN_THUMB) thumbSize = SCROLL_MIN_THUMB;
|
|
}
|
|
else thumbSize = GetSystemMetrics(SM_CXVSCROLL);
|
|
|
|
if ((pixels -= thumbSize) <= 0) return infoPtr->MinVal;
|
|
|
|
pos = max( 0, pos - (GetSystemMetrics(SM_CXVSCROLL) - SCROLL_ARROW_THUMB_OVERLAP) );
|
|
if (pos > pixels) pos = pixels;
|
|
|
|
if (!infoPtr->Page) pos *= infoPtr->MaxVal - infoPtr->MinVal;
|
|
else pos *= infoPtr->MaxVal - infoPtr->MinVal - infoPtr->Page + 1;
|
|
return infoPtr->MinVal + ((pos + pixels / 2) / pixels);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SCROLL_PtInRectEx
|
|
*/
|
|
static BOOL SCROLL_PtInRectEx( LPRECT lpRect, POINT pt, BOOL vertical )
|
|
{
|
|
RECT rect = *lpRect;
|
|
|
|
if (vertical)
|
|
{
|
|
rect.left -= lpRect->right - lpRect->left;
|
|
rect.right += lpRect->right - lpRect->left;
|
|
}
|
|
else
|
|
{
|
|
rect.top -= lpRect->bottom - lpRect->top;
|
|
rect.bottom += lpRect->bottom - lpRect->top;
|
|
}
|
|
return PtInRect( &rect, pt );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SCROLL_ClipPos
|
|
*/
|
|
static POINT SCROLL_ClipPos( LPRECT lpRect, POINT pt )
|
|
{
|
|
if( pt.x < lpRect->left )
|
|
pt.x = lpRect->left;
|
|
else
|
|
if( pt.x > lpRect->right )
|
|
pt.x = lpRect->right;
|
|
|
|
if( pt.y < lpRect->top )
|
|
pt.y = lpRect->top;
|
|
else
|
|
if( pt.y > lpRect->bottom )
|
|
pt.y = lpRect->bottom;
|
|
|
|
return pt;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_HitTest
|
|
*
|
|
* Scroll-bar hit testing (don't confuse this with WM_NCHITTEST!).
|
|
*/
|
|
static enum SCROLL_HITTEST SCROLL_HitTest( HWND hwnd, INT nBar,
|
|
POINT pt, BOOL bDragging )
|
|
{
|
|
INT arrowSize, thumbSize, thumbPos;
|
|
RECT rect;
|
|
|
|
BOOL vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect,
|
|
&arrowSize, &thumbSize, &thumbPos );
|
|
|
|
if ( (bDragging && !SCROLL_PtInRectEx( &rect, pt, vertical )) ||
|
|
(!PtInRect( &rect, pt )) ) return SCROLL_NOWHERE;
|
|
|
|
if (vertical)
|
|
{
|
|
if (pt.y < rect.top + arrowSize) return SCROLL_TOP_ARROW;
|
|
if (pt.y >= rect.bottom - arrowSize) return SCROLL_BOTTOM_ARROW;
|
|
if (!thumbPos) return SCROLL_TOP_RECT;
|
|
pt.y -= rect.top;
|
|
if (pt.y < thumbPos) return SCROLL_TOP_RECT;
|
|
if (pt.y >= thumbPos + thumbSize) return SCROLL_BOTTOM_RECT;
|
|
}
|
|
else /* horizontal */
|
|
{
|
|
if (pt.x < rect.left + arrowSize) return SCROLL_TOP_ARROW;
|
|
if (pt.x >= rect.right - arrowSize) return SCROLL_BOTTOM_ARROW;
|
|
if (!thumbPos) return SCROLL_TOP_RECT;
|
|
pt.x -= rect.left;
|
|
if (pt.x < thumbPos) return SCROLL_TOP_RECT;
|
|
if (pt.x >= thumbPos + thumbSize) return SCROLL_BOTTOM_RECT;
|
|
}
|
|
return SCROLL_THUMB;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_DrawArrows
|
|
*
|
|
* Draw the scroll bar arrows.
|
|
*/
|
|
static void SCROLL_DrawArrows_9x( HDC hdc, SCROLLBAR_INFO *infoPtr,
|
|
RECT *rect, INT arrowSize, BOOL vertical,
|
|
BOOL top_pressed, BOOL bottom_pressed )
|
|
{
|
|
RECT r;
|
|
|
|
r = *rect;
|
|
if( vertical )
|
|
r.bottom = r.top + arrowSize;
|
|
else
|
|
r.right = r.left + arrowSize;
|
|
|
|
DrawFrameControl( hdc, &r, DFC_SCROLL,
|
|
(vertical ? DFCS_SCROLLUP : DFCS_SCROLLLEFT)
|
|
| (top_pressed ? (DFCS_PUSHED | DFCS_FLAT) : 0 )
|
|
| (infoPtr->flags&ESB_DISABLE_LTUP ? DFCS_INACTIVE : 0 ) );
|
|
|
|
r = *rect;
|
|
if( vertical )
|
|
r.top = r.bottom-arrowSize;
|
|
else
|
|
r.left = r.right-arrowSize;
|
|
|
|
DrawFrameControl( hdc, &r, DFC_SCROLL,
|
|
(vertical ? DFCS_SCROLLDOWN : DFCS_SCROLLRIGHT)
|
|
| (bottom_pressed ? (DFCS_PUSHED | DFCS_FLAT) : 0 )
|
|
| (infoPtr->flags&ESB_DISABLE_RTDN ? DFCS_INACTIVE : 0) );
|
|
}
|
|
|
|
static void SCROLL_DrawArrows_31( HDC hdc, SCROLLBAR_INFO *infoPtr,
|
|
RECT *rect, INT arrowSize, BOOL vertical,
|
|
BOOL top_pressed, BOOL bottom_pressed )
|
|
{
|
|
HDC hdcMem = CreateCompatibleDC( hdc );
|
|
HBITMAP hbmpPrev = SelectObject( hdcMem, vertical ?
|
|
TOP_ARROW(infoPtr->flags, top_pressed)
|
|
: LEFT_ARROW(infoPtr->flags, top_pressed));
|
|
|
|
SetStretchBltMode( hdc, STRETCH_DELETESCANS );
|
|
StretchBlt( hdc, rect->left, rect->top,
|
|
vertical ? rect->right-rect->left : arrowSize,
|
|
vertical ? arrowSize : rect->bottom-rect->top,
|
|
hdcMem, 0, 0,
|
|
GetSystemMetrics(SM_CXVSCROLL),GetSystemMetrics(SM_CYHSCROLL),
|
|
SRCCOPY );
|
|
|
|
SelectObject( hdcMem, vertical ?
|
|
BOTTOM_ARROW( infoPtr->flags, bottom_pressed )
|
|
: RIGHT_ARROW( infoPtr->flags, bottom_pressed ) );
|
|
if (vertical)
|
|
StretchBlt( hdc, rect->left, rect->bottom - arrowSize,
|
|
rect->right - rect->left, arrowSize,
|
|
hdcMem, 0, 0,
|
|
GetSystemMetrics(SM_CXVSCROLL),GetSystemMetrics(SM_CYHSCROLL),
|
|
SRCCOPY );
|
|
else
|
|
StretchBlt( hdc, rect->right - arrowSize, rect->top,
|
|
arrowSize, rect->bottom - rect->top,
|
|
hdcMem, 0, 0,
|
|
GetSystemMetrics(SM_CXVSCROLL), GetSystemMetrics(SM_CYHSCROLL),
|
|
SRCCOPY );
|
|
SelectObject( hdcMem, hbmpPrev );
|
|
DeleteDC( hdcMem );
|
|
}
|
|
|
|
static void SCROLL_DrawArrows( HDC hdc, SCROLLBAR_INFO *infoPtr,
|
|
RECT *rect, INT arrowSize, BOOL vertical,
|
|
BOOL top_pressed, BOOL bottom_pressed )
|
|
{
|
|
if( TWEAK_WineLook == WIN31_LOOK )
|
|
SCROLL_DrawArrows_31( hdc, infoPtr, rect, arrowSize,
|
|
vertical, top_pressed,bottom_pressed );
|
|
else
|
|
SCROLL_DrawArrows_9x( hdc, infoPtr, rect, arrowSize,
|
|
vertical, top_pressed,bottom_pressed );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_DrawMovingThumb
|
|
*
|
|
* Draw the moving thumb rectangle.
|
|
*/
|
|
static void SCROLL_DrawMovingThumb_31( HDC hdc, RECT *rect, BOOL vertical,
|
|
INT arrowSize, INT thumbSize )
|
|
{
|
|
RECT r = *rect;
|
|
if (vertical)
|
|
{
|
|
r.top += SCROLL_TrackingPos;
|
|
if (r.top < rect->top + arrowSize - SCROLL_ARROW_THUMB_OVERLAP)
|
|
r.top = rect->top + arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
if (r.top + thumbSize >
|
|
rect->bottom - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP))
|
|
r.top = rect->bottom - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP)
|
|
- thumbSize;
|
|
r.bottom = r.top + thumbSize;
|
|
}
|
|
else
|
|
{
|
|
r.left += SCROLL_TrackingPos;
|
|
if (r.left < rect->left + arrowSize - SCROLL_ARROW_THUMB_OVERLAP)
|
|
r.left = rect->left + arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
if (r.left + thumbSize >
|
|
rect->right - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP))
|
|
r.left = rect->right - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP)
|
|
- thumbSize;
|
|
r.right = r.left + thumbSize;
|
|
}
|
|
|
|
DrawFocusRect( hdc, &r );
|
|
SCROLL_MovingThumb = !SCROLL_MovingThumb;
|
|
}
|
|
|
|
static void SCROLL_DrawMovingThumb_9x( HDC hdc, RECT *rect, BOOL vertical,
|
|
INT arrowSize, INT thumbSize )
|
|
{
|
|
INT pos = SCROLL_TrackingPos;
|
|
INT max_size;
|
|
|
|
if( vertical )
|
|
max_size = rect->bottom - rect->top;
|
|
else
|
|
max_size = rect->right - rect->left;
|
|
|
|
max_size -= (arrowSize-SCROLL_ARROW_THUMB_OVERLAP) + thumbSize;
|
|
|
|
if( pos < (arrowSize-SCROLL_ARROW_THUMB_OVERLAP) )
|
|
pos = (arrowSize-SCROLL_ARROW_THUMB_OVERLAP);
|
|
else if( pos > max_size )
|
|
pos = max_size;
|
|
|
|
SCROLL_DrawInterior_9x( SCROLL_TrackingWin, hdc, SCROLL_TrackingBar,
|
|
rect, arrowSize, thumbSize, pos,
|
|
0, vertical, FALSE, FALSE );
|
|
|
|
SCROLL_MovingThumb = !SCROLL_MovingThumb;
|
|
}
|
|
|
|
static void SCROLL_DrawMovingThumb( HDC hdc, RECT *rect, BOOL vertical,
|
|
INT arrowSize, INT thumbSize )
|
|
{
|
|
if( TWEAK_WineLook == WIN31_LOOK )
|
|
SCROLL_DrawMovingThumb_31( hdc, rect, vertical, arrowSize, thumbSize );
|
|
else
|
|
SCROLL_DrawMovingThumb_9x( hdc, rect, vertical, arrowSize, thumbSize );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SCROLL_DrawInterior
|
|
*
|
|
* Draw the scroll bar interior (everything except the arrows).
|
|
*/
|
|
static void SCROLL_DrawInterior_9x( HWND hwnd, HDC hdc, INT nBar,
|
|
RECT *rect, INT arrowSize,
|
|
INT thumbSize, INT thumbPos,
|
|
UINT flags, BOOL vertical,
|
|
BOOL top_selected, BOOL bottom_selected )
|
|
{
|
|
RECT r;
|
|
HPEN hSavePen;
|
|
HBRUSH hSaveBrush,hBrush;
|
|
|
|
/* Only scrollbar controls send WM_CTLCOLORSCROLLBAR.
|
|
* The window-owned scrollbars need to call DEFWND_ControlColor
|
|
* to correctly setup default scrollbar colors
|
|
*/
|
|
if (nBar == SB_CTL)
|
|
{
|
|
hBrush = (HBRUSH)SendMessageA( GetParent(hwnd), WM_CTLCOLORSCROLLBAR,
|
|
(WPARAM)hdc,(LPARAM)hwnd);
|
|
}
|
|
else
|
|
{
|
|
hBrush = DEFWND_ControlColor( hdc, CTLCOLOR_SCROLLBAR );
|
|
}
|
|
|
|
hSavePen = SelectObject( hdc, GetSysColorPen(COLOR_WINDOWFRAME) );
|
|
hSaveBrush = SelectObject( hdc, hBrush );
|
|
|
|
/* Calculate the scroll rectangle */
|
|
r = *rect;
|
|
if (vertical)
|
|
{
|
|
r.top += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
r.bottom -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
}
|
|
else
|
|
{
|
|
r.left += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
r.right -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
}
|
|
|
|
/* Draw the scroll rectangles and thumb */
|
|
if (!thumbPos) /* No thumb to draw */
|
|
{
|
|
PatBlt( hdc, r.left, r.top,
|
|
r.right - r.left, r.bottom - r.top,
|
|
PATCOPY );
|
|
|
|
/* cleanup and return */
|
|
SelectObject( hdc, hSavePen );
|
|
SelectObject( hdc, hSaveBrush );
|
|
return;
|
|
}
|
|
|
|
if (vertical)
|
|
{
|
|
PatBlt( hdc, r.left, r.top,
|
|
r.right - r.left,
|
|
thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP),
|
|
top_selected ? 0x0f0000 : PATCOPY );
|
|
r.top += thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
PatBlt( hdc, r.left, r.top + thumbSize,
|
|
r.right - r.left,
|
|
r.bottom - r.top - thumbSize,
|
|
bottom_selected ? 0x0f0000 : PATCOPY );
|
|
r.bottom = r.top + thumbSize;
|
|
}
|
|
else /* horizontal */
|
|
{
|
|
PatBlt( hdc, r.left, r.top,
|
|
thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP),
|
|
r.bottom - r.top,
|
|
top_selected ? 0x0f0000 : PATCOPY );
|
|
r.left += thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
PatBlt( hdc, r.left + thumbSize, r.top,
|
|
r.right - r.left - thumbSize,
|
|
r.bottom - r.top,
|
|
bottom_selected ? 0x0f0000 : PATCOPY );
|
|
r.right = r.left + thumbSize;
|
|
}
|
|
|
|
/* Draw the thumb */
|
|
DrawEdge( hdc, &r, EDGE_RAISED, BF_RECT | BF_MIDDLE );
|
|
|
|
/* cleanup */
|
|
SelectObject( hdc, hSavePen );
|
|
SelectObject( hdc, hSaveBrush );
|
|
}
|
|
|
|
|
|
static void SCROLL_DrawInterior( HWND hwnd, HDC hdc, INT nBar,
|
|
RECT *rect, INT arrowSize,
|
|
INT thumbSize, INT thumbPos,
|
|
UINT flags, BOOL vertical,
|
|
BOOL top_selected, BOOL bottom_selected )
|
|
{
|
|
RECT r;
|
|
HPEN hSavePen;
|
|
HBRUSH hSaveBrush,hBrush;
|
|
BOOL Save_SCROLL_MovingThumb = SCROLL_MovingThumb;
|
|
|
|
if (Save_SCROLL_MovingThumb &&
|
|
(SCROLL_TrackingWin == hwnd) &&
|
|
(SCROLL_TrackingBar == nBar))
|
|
SCROLL_DrawMovingThumb( hdc, rect, vertical, arrowSize, thumbSize );
|
|
|
|
/* Select the correct brush and pen */
|
|
|
|
if (TWEAK_WineLook == WIN31_LOOK && (flags & ESB_DISABLE_BOTH) == ESB_DISABLE_BOTH)
|
|
{
|
|
/* This ought to be the color of the parent window */
|
|
hBrush = GetSysColorBrush(COLOR_WINDOW);
|
|
}
|
|
else
|
|
{
|
|
/* Only scrollbar controls send WM_CTLCOLORSCROLLBAR.
|
|
* The window-owned scrollbars need to call DEFWND_ControlColor
|
|
* to correctly setup default scrollbar colors
|
|
*/
|
|
if (nBar == SB_CTL) {
|
|
hBrush = (HBRUSH)SendMessageA( GetParent(hwnd), WM_CTLCOLORSCROLLBAR,
|
|
(WPARAM)hdc,(LPARAM)hwnd);
|
|
} else {
|
|
hBrush = DEFWND_ControlColor( hdc, CTLCOLOR_SCROLLBAR );
|
|
}
|
|
}
|
|
hSavePen = SelectObject( hdc, GetSysColorPen(COLOR_WINDOWFRAME) );
|
|
hSaveBrush = SelectObject( hdc, hBrush );
|
|
|
|
/* Calculate the scroll rectangle */
|
|
|
|
r = *rect;
|
|
if (vertical)
|
|
{
|
|
r.top += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
r.bottom -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
}
|
|
else
|
|
{
|
|
r.left += arrowSize - SCROLL_ARROW_THUMB_OVERLAP;
|
|
r.right -= (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
}
|
|
|
|
/* Draw the scroll bar frame */
|
|
|
|
/* Only draw outline if Win 3.1. Mar 24, 1999 - Ronald B. Cemer */
|
|
if (TWEAK_WineLook == WIN31_LOOK)
|
|
Rectangle( hdc, r.left, r.top, r.right, r.bottom );
|
|
|
|
/* Draw the scroll rectangles and thumb */
|
|
|
|
if (!thumbPos) /* No thumb to draw */
|
|
{
|
|
INT offset = (TWEAK_WineLook > WIN31_LOOK) ? 0 : 1;
|
|
|
|
PatBlt( hdc, r.left+offset, r.top+offset,
|
|
r.right - r.left - 2*offset, r.bottom - r.top - 2*offset,
|
|
PATCOPY );
|
|
|
|
/* cleanup and return */
|
|
SelectObject( hdc, hSavePen );
|
|
SelectObject( hdc, hSaveBrush );
|
|
return;
|
|
}
|
|
|
|
if (vertical)
|
|
{
|
|
INT offset = (TWEAK_WineLook == WIN31_LOOK) ? 1 : 0;
|
|
|
|
PatBlt( hdc, r.left + offset, r.top + offset,
|
|
r.right - r.left - offset*2,
|
|
thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP) - offset,
|
|
top_selected ? 0x0f0000 : PATCOPY );
|
|
r.top += thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
PatBlt( hdc, r.left + offset, r.top + thumbSize,
|
|
r.right - r.left - offset*2,
|
|
r.bottom - r.top - thumbSize - offset,
|
|
bottom_selected ? 0x0f0000 : PATCOPY );
|
|
r.bottom = r.top + thumbSize;
|
|
}
|
|
else /* horizontal */
|
|
{
|
|
INT offset = (TWEAK_WineLook == WIN31_LOOK) ? 1 : 0;
|
|
|
|
PatBlt( hdc, r.left + offset, r.top + offset,
|
|
thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP),
|
|
r.bottom - r.top - offset*2,
|
|
top_selected ? 0x0f0000 : PATCOPY );
|
|
r.left += thumbPos - (arrowSize - SCROLL_ARROW_THUMB_OVERLAP);
|
|
PatBlt( hdc, r.left + thumbSize, r.top + offset,
|
|
r.right - r.left - thumbSize - offset,
|
|
r.bottom - r.top - offset*2,
|
|
bottom_selected ? 0x0f0000 : PATCOPY );
|
|
r.right = r.left + thumbSize;
|
|
}
|
|
|
|
/* Draw the thumb */
|
|
|
|
SelectObject( hdc, GetSysColorBrush(COLOR_BTNFACE) );
|
|
if (TWEAK_WineLook == WIN31_LOOK)
|
|
{
|
|
Rectangle( hdc, r.left, r.top, r.right, r.bottom );
|
|
r.top++, r.left++;
|
|
}
|
|
else
|
|
{
|
|
Rectangle( hdc, r.left+1, r.top+1, r.right-1, r.bottom-1 );
|
|
}
|
|
DrawEdge( hdc, &r, EDGE_RAISED, BF_RECT );
|
|
|
|
if (Save_SCROLL_MovingThumb &&
|
|
(SCROLL_TrackingWin == hwnd) &&
|
|
(SCROLL_TrackingBar == nBar))
|
|
SCROLL_DrawMovingThumb( hdc, rect, vertical, arrowSize, thumbSize );
|
|
|
|
/* cleanup */
|
|
SelectObject( hdc, hSavePen );
|
|
SelectObject( hdc, hSaveBrush );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_DrawScrollBar
|
|
*
|
|
* Redraw the whole scrollbar.
|
|
*/
|
|
void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar,
|
|
BOOL arrows, BOOL interior )
|
|
{
|
|
INT arrowSize, thumbSize, thumbPos;
|
|
RECT rect;
|
|
BOOL vertical;
|
|
WND *wndPtr = WIN_FindWndPtr( hwnd );
|
|
SCROLLBAR_INFO *infoPtr = SCROLL_GetScrollInfo( hwnd, nBar );
|
|
BOOL Save_SCROLL_MovingThumb = SCROLL_MovingThumb;
|
|
|
|
if (!wndPtr || !infoPtr ||
|
|
((nBar == SB_VERT) && !(wndPtr->dwStyle & WS_VSCROLL)) ||
|
|
((nBar == SB_HORZ) && !(wndPtr->dwStyle & WS_HSCROLL))) goto END;
|
|
if (!WIN_IsWindowDrawable( wndPtr, FALSE )) goto END;
|
|
hwnd = wndPtr->hwndSelf; /* make it a full handle */
|
|
|
|
vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect,
|
|
&arrowSize, &thumbSize, &thumbPos );
|
|
|
|
/* do not draw if the scrollbar rectangle is empty */
|
|
if(IsRectEmpty(&rect))
|
|
goto END;
|
|
|
|
if (Save_SCROLL_MovingThumb &&
|
|
(SCROLL_TrackingWin == hwnd) &&
|
|
(SCROLL_TrackingBar == nBar))
|
|
SCROLL_DrawMovingThumb( hdc, &rect, vertical, arrowSize, thumbSize );
|
|
|
|
/* Draw the arrows */
|
|
|
|
if (arrows && arrowSize)
|
|
{
|
|
if( vertical == SCROLL_trackVertical && GetCapture() == hwnd )
|
|
SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical,
|
|
(SCROLL_trackHitTest == SCROLL_TOP_ARROW),
|
|
(SCROLL_trackHitTest == SCROLL_BOTTOM_ARROW) );
|
|
else
|
|
SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical,
|
|
FALSE, FALSE );
|
|
}
|
|
if( interior )
|
|
SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize,
|
|
thumbPos, infoPtr->flags, vertical, FALSE, FALSE );
|
|
|
|
if (Save_SCROLL_MovingThumb &&
|
|
(SCROLL_TrackingWin == hwnd) &&
|
|
(SCROLL_TrackingBar == nBar))
|
|
SCROLL_DrawMovingThumb( hdc, &rect, vertical, arrowSize, thumbSize );
|
|
|
|
/* if scroll bar has focus, reposition the caret */
|
|
if(hwnd==GetFocus() && (nBar==SB_CTL))
|
|
{
|
|
if (!vertical)
|
|
{
|
|
SetCaretPos(thumbPos+1, rect.top+1);
|
|
}
|
|
else
|
|
{
|
|
SetCaretPos(rect.top+1, thumbPos+1);
|
|
}
|
|
}
|
|
|
|
END:
|
|
WIN_ReleaseWndPtr(wndPtr);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_RefreshScrollBar
|
|
*
|
|
* Repaint the scroll bar interior after a SetScrollRange() or
|
|
* SetScrollPos() call.
|
|
*/
|
|
static void SCROLL_RefreshScrollBar( HWND hwnd, INT nBar,
|
|
BOOL arrows, BOOL interior )
|
|
{
|
|
HDC hdc = GetDCEx( hwnd, 0,
|
|
DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW) );
|
|
if (!hdc) return;
|
|
|
|
SCROLL_DrawScrollBar( hwnd, hdc, nBar, arrows, interior );
|
|
ReleaseDC( hwnd, hdc );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_HandleKbdEvent
|
|
*
|
|
* Handle a keyboard event (only for SB_CTL scrollbars).
|
|
*/
|
|
static void SCROLL_HandleKbdEvent( HWND hwnd, WPARAM wParam )
|
|
{
|
|
WPARAM msg;
|
|
|
|
switch(wParam)
|
|
{
|
|
case VK_PRIOR: msg = SB_PAGEUP; break;
|
|
case VK_NEXT: msg = SB_PAGEDOWN; break;
|
|
case VK_HOME: msg = SB_TOP; break;
|
|
case VK_END: msg = SB_BOTTOM; break;
|
|
case VK_UP: msg = SB_LINEUP; break;
|
|
case VK_DOWN: msg = SB_LINEDOWN; break;
|
|
default: return;
|
|
}
|
|
SendMessageW( GetParent(hwnd),
|
|
(GetWindowLongA( hwnd, GWL_STYLE ) & SBS_VERT) ? WM_VSCROLL : WM_HSCROLL,
|
|
msg, hwnd );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SCROLL_HandleScrollEvent
|
|
*
|
|
* Handle a mouse or timer event for the scrollbar.
|
|
* 'pt' is the location of the mouse event in client (for SB_CTL) or
|
|
* windows coordinates.
|
|
*/
|
|
void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
|
|
{
|
|
/* Previous mouse position for timer events */
|
|
static POINT prevPt;
|
|
/* Thumb position when tracking started. */
|
|
static UINT trackThumbPos;
|
|
/* Position in the scroll-bar of the last button-down event. */
|
|
static INT lastClickPos;
|
|
/* Position in the scroll-bar of the last mouse event. */
|
|
static INT lastMousePos;
|
|
|
|
enum SCROLL_HITTEST hittest;
|
|
HWND hwndOwner, hwndCtl;
|
|
BOOL vertical;
|
|
INT arrowSize, thumbSize, thumbPos;
|
|
RECT rect;
|
|
HDC hdc;
|
|
|
|
SCROLLBAR_INFO *infoPtr = SCROLL_GetScrollInfo( hwnd, nBar );
|
|
if (!infoPtr) return;
|
|
if ((SCROLL_trackHitTest == SCROLL_NOWHERE) && (msg != WM_LBUTTONDOWN))
|
|
return;
|
|
|
|
hdc = GetDCEx( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW));
|
|
vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect,
|
|
&arrowSize, &thumbSize, &thumbPos );
|
|
hwndOwner = (nBar == SB_CTL) ? GetParent(hwnd) : hwnd;
|
|
hwndCtl = (nBar == SB_CTL) ? hwnd : 0;
|
|
|
|
switch(msg)
|
|
{
|
|
case WM_LBUTTONDOWN: /* Initialise mouse tracking */
|
|
HideCaret(hwnd); /* hide caret while holding down LBUTTON */
|
|
SCROLL_trackVertical = vertical;
|
|
SCROLL_trackHitTest = hittest = SCROLL_HitTest( hwnd, nBar, pt, FALSE );
|
|
lastClickPos = vertical ? (pt.y - rect.top) : (pt.x - rect.left);
|
|
lastMousePos = lastClickPos;
|
|
trackThumbPos = thumbPos;
|
|
prevPt = pt;
|
|
SetCapture( hwnd );
|
|
if (nBar == SB_CTL && (GetWindowLongA(hwnd, GWL_STYLE) & WS_TABSTOP)) SetFocus( hwnd );
|
|
break;
|
|
|
|
case WM_MOUSEMOVE:
|
|
hittest = SCROLL_HitTest( hwnd, nBar, pt, TRUE );
|
|
prevPt = pt;
|
|
break;
|
|
|
|
case WM_LBUTTONUP:
|
|
hittest = SCROLL_NOWHERE;
|
|
ReleaseCapture();
|
|
/* if scrollbar has focus, show back caret */
|
|
if (hwnd==GetFocus()) ShowCaret(hwnd);
|
|
break;
|
|
|
|
case WM_SYSTIMER:
|
|
pt = prevPt;
|
|
hittest = SCROLL_HitTest( hwnd, nBar, pt, FALSE );
|
|
break;
|
|
|
|
default:
|
|
return; /* Should never happen */
|
|
}
|
|
|
|
TRACE("Event: hwnd=%04x bar=%d msg=%x pt=%ld,%ld hit=%d\n",
|
|
hwnd, nBar, msg, pt.x, pt.y, hittest );
|
|
|
|
switch(SCROLL_trackHitTest)
|
|
{
|
|
case SCROLL_NOWHERE: /* No tracking in progress */
|
|
break;
|
|
|
|
case SCROLL_TOP_ARROW:
|
|
SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical,
|
|
(hittest == SCROLL_trackHitTest), FALSE );
|
|
if (hittest == SCROLL_trackHitTest)
|
|
{
|
|
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
|
|
{
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
SB_LINEUP, hwndCtl );
|
|
}
|
|
|
|
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
|
|
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
|
|
(TIMERPROC)0 );
|
|
}
|
|
else KillSystemTimer( hwnd, SCROLL_TIMER );
|
|
break;
|
|
|
|
case SCROLL_TOP_RECT:
|
|
SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize,
|
|
thumbPos, infoPtr->flags, vertical,
|
|
(hittest == SCROLL_trackHitTest), FALSE );
|
|
if (hittest == SCROLL_trackHitTest)
|
|
{
|
|
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
|
|
{
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
SB_PAGEUP, hwndCtl );
|
|
}
|
|
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
|
|
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
|
|
(TIMERPROC)0 );
|
|
}
|
|
else KillSystemTimer( hwnd, SCROLL_TIMER );
|
|
break;
|
|
|
|
case SCROLL_THUMB:
|
|
if (msg == WM_LBUTTONDOWN)
|
|
{
|
|
SCROLL_TrackingWin = hwnd;
|
|
SCROLL_TrackingBar = nBar;
|
|
SCROLL_TrackingPos = trackThumbPos + lastMousePos - lastClickPos;
|
|
if (!SCROLL_MovingThumb)
|
|
SCROLL_DrawMovingThumb(hdc, &rect, vertical, arrowSize, thumbSize);
|
|
}
|
|
else if (msg == WM_LBUTTONUP)
|
|
{
|
|
if (SCROLL_MovingThumb)
|
|
SCROLL_DrawMovingThumb(hdc, &rect, vertical, arrowSize, thumbSize);
|
|
SCROLL_TrackingWin = 0;
|
|
SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize,
|
|
thumbPos, infoPtr->flags, vertical,
|
|
FALSE, FALSE );
|
|
}
|
|
else /* WM_MOUSEMOVE */
|
|
{
|
|
UINT pos;
|
|
|
|
if (!SCROLL_PtInRectEx( &rect, pt, vertical )) pos = lastClickPos;
|
|
else
|
|
{
|
|
pt = SCROLL_ClipPos( &rect, pt );
|
|
pos = vertical ? (pt.y - rect.top) : (pt.x - rect.left);
|
|
}
|
|
if ( (pos != lastMousePos) || (!SCROLL_MovingThumb) )
|
|
{
|
|
if (SCROLL_MovingThumb)
|
|
SCROLL_DrawMovingThumb( hdc, &rect, vertical,
|
|
arrowSize, thumbSize );
|
|
lastMousePos = pos;
|
|
SCROLL_TrackingPos = trackThumbPos + pos - lastClickPos;
|
|
SCROLL_TrackingVal = SCROLL_GetThumbVal( infoPtr, &rect,
|
|
vertical,
|
|
SCROLL_TrackingPos );
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
MAKEWPARAM( SB_THUMBTRACK, SCROLL_TrackingVal),
|
|
hwndCtl );
|
|
if (!SCROLL_MovingThumb)
|
|
SCROLL_DrawMovingThumb( hdc, &rect, vertical,
|
|
arrowSize, thumbSize );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SCROLL_BOTTOM_RECT:
|
|
SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize,
|
|
thumbPos, infoPtr->flags, vertical,
|
|
FALSE, (hittest == SCROLL_trackHitTest) );
|
|
if (hittest == SCROLL_trackHitTest)
|
|
{
|
|
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
|
|
{
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
SB_PAGEDOWN, hwndCtl );
|
|
}
|
|
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
|
|
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
|
|
(TIMERPROC)0 );
|
|
}
|
|
else KillSystemTimer( hwnd, SCROLL_TIMER );
|
|
break;
|
|
|
|
case SCROLL_BOTTOM_ARROW:
|
|
SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical,
|
|
FALSE, (hittest == SCROLL_trackHitTest) );
|
|
if (hittest == SCROLL_trackHitTest)
|
|
{
|
|
if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER))
|
|
{
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
SB_LINEDOWN, hwndCtl );
|
|
}
|
|
|
|
SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
|
|
SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
|
|
(TIMERPROC)0 );
|
|
}
|
|
else KillSystemTimer( hwnd, SCROLL_TIMER );
|
|
break;
|
|
}
|
|
|
|
if (msg == WM_LBUTTONUP)
|
|
{
|
|
hittest = SCROLL_trackHitTest;
|
|
SCROLL_trackHitTest = SCROLL_NOWHERE; /* Terminate tracking */
|
|
|
|
if (hittest == SCROLL_THUMB)
|
|
{
|
|
UINT val = SCROLL_GetThumbVal( infoPtr, &rect, vertical,
|
|
trackThumbPos + lastMousePos - lastClickPos );
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
MAKEWPARAM( SB_THUMBPOSITION, val ), hwndCtl );
|
|
}
|
|
else
|
|
SendMessageA( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL,
|
|
SB_ENDSCROLL, hwndCtl );
|
|
}
|
|
|
|
ReleaseDC( hwnd, hdc );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScrollBarWndProc
|
|
*/
|
|
static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
|
|
{
|
|
if (!IsWindow( hwnd )) return 0;
|
|
|
|
switch(message)
|
|
{
|
|
case WM_CREATE:
|
|
{
|
|
CREATESTRUCTW *lpCreat = (CREATESTRUCTW *)lParam;
|
|
if (lpCreat->style & SBS_SIZEBOX)
|
|
{
|
|
FIXME("Unimplemented style SBS_SIZEBOX.\n" );
|
|
return 0;
|
|
}
|
|
if (lpCreat->style & SBS_VERT)
|
|
{
|
|
if (lpCreat->style & SBS_LEFTALIGN)
|
|
MoveWindow( hwnd, lpCreat->x, lpCreat->y,
|
|
GetSystemMetrics(SM_CXVSCROLL)+1, lpCreat->cy, FALSE );
|
|
else if (lpCreat->style & SBS_RIGHTALIGN)
|
|
MoveWindow( hwnd,
|
|
lpCreat->x+lpCreat->cx-GetSystemMetrics(SM_CXVSCROLL)-1,
|
|
lpCreat->y,
|
|
GetSystemMetrics(SM_CXVSCROLL)+1, lpCreat->cy, FALSE );
|
|
}
|
|
else /* SBS_HORZ */
|
|
{
|
|
if (lpCreat->style & SBS_TOPALIGN)
|
|
MoveWindow( hwnd, lpCreat->x, lpCreat->y,
|
|
lpCreat->cx, GetSystemMetrics(SM_CYHSCROLL)+1, FALSE );
|
|
else if (lpCreat->style & SBS_BOTTOMALIGN)
|
|
MoveWindow( hwnd,
|
|
lpCreat->x,
|
|
lpCreat->y+lpCreat->cy-GetSystemMetrics(SM_CYHSCROLL)-1,
|
|
lpCreat->cx, GetSystemMetrics(SM_CYHSCROLL)+1, FALSE );
|
|
}
|
|
}
|
|
if (!hUpArrow) SCROLL_LoadBitmaps();
|
|
TRACE("ScrollBar creation, hwnd=%04x\n", hwnd );
|
|
return 0;
|
|
|
|
case WM_LBUTTONDOWN:
|
|
case WM_LBUTTONUP:
|
|
case WM_MOUSEMOVE:
|
|
case WM_SYSTIMER:
|
|
{
|
|
POINT pt;
|
|
pt.x = SLOWORD(lParam);
|
|
pt.y = SHIWORD(lParam);
|
|
SCROLL_HandleScrollEvent( hwnd, SB_CTL, message, pt );
|
|
}
|
|
break;
|
|
|
|
/* if key event is received, the scrollbar has the focus */
|
|
case WM_KEYDOWN:
|
|
/* hide caret on first KEYDOWN to prevent flicker */
|
|
if ((lParam & 0x40000000)==0)
|
|
HideCaret(hwnd);
|
|
SCROLL_HandleKbdEvent( hwnd, wParam );
|
|
break;
|
|
|
|
case WM_KEYUP:
|
|
ShowCaret(hwnd);
|
|
break;
|
|
|
|
case WM_SETFOCUS:
|
|
{
|
|
/* Create a caret when a ScrollBar get focus */
|
|
RECT rect;
|
|
int arrowSize, thumbSize, thumbPos, vertical;
|
|
vertical = SCROLL_GetScrollBarRect( hwnd, SB_CTL, &rect,
|
|
&arrowSize, &thumbSize, &thumbPos );
|
|
if (!vertical)
|
|
{
|
|
CreateCaret(hwnd,1, thumbSize-2, rect.bottom-rect.top-2);
|
|
SetCaretPos(thumbPos+1, rect.top+1);
|
|
}
|
|
else
|
|
{
|
|
CreateCaret(hwnd,1, rect.right-rect.left-2,thumbSize-2);
|
|
SetCaretPos(rect.top+1, thumbPos+1);
|
|
}
|
|
ShowCaret(hwnd);
|
|
}
|
|
break;
|
|
|
|
case WM_KILLFOCUS:
|
|
{
|
|
RECT rect;
|
|
int arrowSize, thumbSize, thumbPos, vertical;
|
|
vertical = SCROLL_GetScrollBarRect( hwnd, SB_CTL, &rect,&arrowSize, &thumbSize, &thumbPos );
|
|
if (!vertical){
|
|
rect.left=thumbPos+1;
|
|
rect.right=rect.left+thumbSize;
|
|
}
|
|
else
|
|
{
|
|
rect.top=thumbPos+1;
|
|
rect.bottom=rect.top+thumbSize;
|
|
}
|
|
HideCaret(hwnd);
|
|
InvalidateRect(hwnd,&rect,0);
|
|
DestroyCaret();
|
|
}
|
|
break;
|
|
|
|
case WM_ERASEBKGND:
|
|
return 1;
|
|
|
|
case WM_GETDLGCODE:
|
|
return DLGC_WANTARROWS; /* Windows returns this value */
|
|
|
|
case WM_PAINT:
|
|
{
|
|
PAINTSTRUCT ps;
|
|
HDC hdc = BeginPaint( hwnd, &ps );
|
|
SCROLL_DrawScrollBar( hwnd, hdc, SB_CTL, TRUE, TRUE );
|
|
EndPaint( hwnd, &ps );
|
|
}
|
|
break;
|
|
|
|
case SBM_SETPOS16:
|
|
case SBM_SETPOS:
|
|
return SetScrollPos( hwnd, SB_CTL, wParam, (BOOL)lParam );
|
|
|
|
case SBM_GETPOS16:
|
|
case SBM_GETPOS:
|
|
return GetScrollPos( hwnd, SB_CTL );
|
|
|
|
case SBM_SETRANGE16:
|
|
SetScrollRange( hwnd, SB_CTL, LOWORD(lParam), HIWORD(lParam),
|
|
wParam /* FIXME: Is this correct? */ );
|
|
return 0;
|
|
|
|
case SBM_SETRANGE:
|
|
{
|
|
INT oldPos = GetScrollPos( hwnd, SB_CTL );
|
|
SetScrollRange( hwnd, SB_CTL, wParam, lParam, FALSE );
|
|
if (oldPos != GetScrollPos( hwnd, SB_CTL )) return oldPos;
|
|
}
|
|
return 0;
|
|
|
|
case SBM_GETRANGE16:
|
|
FIXME("don't know how to handle SBM_GETRANGE16 (wp=%04x,lp=%08lx)\n", wParam, lParam );
|
|
return 0;
|
|
|
|
case SBM_GETRANGE:
|
|
GetScrollRange( hwnd, SB_CTL, (LPINT)wParam, (LPINT)lParam );
|
|
return 0;
|
|
|
|
case SBM_ENABLE_ARROWS16:
|
|
case SBM_ENABLE_ARROWS:
|
|
return EnableScrollBar( hwnd, SB_CTL, wParam );
|
|
|
|
case SBM_SETRANGEREDRAW:
|
|
{
|
|
INT oldPos = GetScrollPos( hwnd, SB_CTL );
|
|
SetScrollRange( hwnd, SB_CTL, wParam, lParam, TRUE );
|
|
if (oldPos != GetScrollPos( hwnd, SB_CTL )) return oldPos;
|
|
}
|
|
return 0;
|
|
|
|
case SBM_SETSCROLLINFO:
|
|
return SetScrollInfo( hwnd, SB_CTL, (SCROLLINFO *)lParam, wParam );
|
|
|
|
case SBM_GETSCROLLINFO:
|
|
return GetScrollInfo( hwnd, SB_CTL, (SCROLLINFO *)lParam );
|
|
|
|
case 0x00e5:
|
|
case 0x00e7:
|
|
case 0x00e8:
|
|
case 0x00eb:
|
|
case 0x00ec:
|
|
case 0x00ed:
|
|
case 0x00ee:
|
|
case 0x00ef:
|
|
ERR("unknown Win32 msg %04x wp=%08x lp=%08lx\n",
|
|
message, wParam, lParam );
|
|
break;
|
|
|
|
default:
|
|
if (message >= WM_USER)
|
|
WARN("unknown msg %04x wp=%04x lp=%08lx\n",
|
|
message, wParam, lParam );
|
|
return DefWindowProcW( hwnd, message, wParam, lParam );
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollInfo (USER.475)
|
|
*/
|
|
INT16 WINAPI SetScrollInfo16( HWND16 hwnd, INT16 nBar, const SCROLLINFO *info,
|
|
BOOL16 bRedraw )
|
|
{
|
|
return (INT16)SetScrollInfo( hwnd, nBar, info, bRedraw );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollInfo (USER32.@)
|
|
* SetScrollInfo can be used to set the position, upper bound,
|
|
* lower bound, and page size of a scrollbar control.
|
|
*
|
|
* RETURNS
|
|
* Scrollbar position
|
|
*
|
|
* NOTE
|
|
* For 100 lines of text to be displayed in a window of 25 lines,
|
|
* one would for instance use info->nMin=0, info->nMax=75
|
|
* (corresponding to the 76 different positions of the window on
|
|
* the text), and info->nPage=25.
|
|
*/
|
|
INT WINAPI SetScrollInfo(
|
|
HWND hwnd /* [in] Handle of window whose scrollbar will be affected */,
|
|
INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
|
|
const SCROLLINFO *info /* [in] Specifies what to change and new values */,
|
|
BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */)
|
|
{
|
|
INT action;
|
|
INT retVal = SCROLL_SetScrollInfo( hwnd, nBar, info, &action );
|
|
|
|
if( action & SA_SSI_HIDE )
|
|
SCROLL_ShowScrollBar( hwnd, nBar, FALSE, FALSE );
|
|
else
|
|
{
|
|
if( action & SA_SSI_SHOW )
|
|
if( SCROLL_ShowScrollBar( hwnd, nBar, TRUE, TRUE ) )
|
|
return retVal; /* SetWindowPos() already did the painting */
|
|
|
|
if( bRedraw && (action & SA_SSI_REFRESH))
|
|
SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, TRUE );
|
|
else if( action & SA_SSI_REPAINT_ARROWS )
|
|
SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, FALSE );
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
INT SCROLL_SetScrollInfo( HWND hwnd, INT nBar,
|
|
const SCROLLINFO *info, INT *action )
|
|
{
|
|
/* Update the scrollbar state and set action flags according to
|
|
* what has to be done graphics wise. */
|
|
|
|
SCROLLBAR_INFO *infoPtr;
|
|
UINT new_flags;
|
|
BOOL bChangeParams = FALSE; /* don't show/hide scrollbar if params don't change */
|
|
|
|
*action = 0;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo(hwnd, nBar))) return 0;
|
|
if (info->fMask & ~(SIF_ALL | SIF_DISABLENOSCROLL)) return 0;
|
|
if ((info->cbSize != sizeof(*info)) &&
|
|
(info->cbSize != sizeof(*info)-sizeof(info->nTrackPos))) return 0;
|
|
|
|
if (TRACE_ON(scroll))
|
|
{
|
|
TRACE("hwnd=%04x bar=%d", hwnd, nBar);
|
|
if (info->fMask & SIF_PAGE) DPRINTF( " page=%d", info->nPage );
|
|
if (info->fMask & SIF_POS) DPRINTF( " pos=%d", info->nPos );
|
|
if (info->fMask & SIF_RANGE) DPRINTF( " min=%d max=%d", info->nMin, info->nMax );
|
|
DPRINTF("\n");
|
|
}
|
|
|
|
/* Set the page size */
|
|
|
|
if (info->fMask & SIF_PAGE)
|
|
{
|
|
if( infoPtr->Page != info->nPage )
|
|
{
|
|
infoPtr->Page = info->nPage;
|
|
*action |= SA_SSI_REFRESH;
|
|
bChangeParams = TRUE;
|
|
}
|
|
}
|
|
|
|
/* Set the scroll pos */
|
|
|
|
if (info->fMask & SIF_POS)
|
|
{
|
|
if( infoPtr->CurVal != info->nPos )
|
|
{
|
|
infoPtr->CurVal = info->nPos;
|
|
*action |= SA_SSI_REFRESH;
|
|
}
|
|
}
|
|
|
|
/* Set the scroll range */
|
|
|
|
if (info->fMask & SIF_RANGE)
|
|
{
|
|
/* Invalid range -> range is set to (0,0) */
|
|
if ((info->nMin > info->nMax) ||
|
|
((UINT)(info->nMax - info->nMin) >= 0x80000000))
|
|
{
|
|
infoPtr->MinVal = 0;
|
|
infoPtr->MaxVal = 0;
|
|
bChangeParams = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if( infoPtr->MinVal != info->nMin ||
|
|
infoPtr->MaxVal != info->nMax )
|
|
{
|
|
*action |= SA_SSI_REFRESH;
|
|
infoPtr->MinVal = info->nMin;
|
|
infoPtr->MaxVal = info->nMax;
|
|
bChangeParams = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Make sure the page size is valid */
|
|
|
|
if (infoPtr->Page < 0) infoPtr->Page = 0;
|
|
else if (infoPtr->Page > infoPtr->MaxVal - infoPtr->MinVal + 1 )
|
|
infoPtr->Page = infoPtr->MaxVal - infoPtr->MinVal + 1;
|
|
|
|
/* Make sure the pos is inside the range */
|
|
|
|
if (infoPtr->CurVal < infoPtr->MinVal)
|
|
infoPtr->CurVal = infoPtr->MinVal;
|
|
else if (infoPtr->CurVal > infoPtr->MaxVal - max( infoPtr->Page-1, 0 ))
|
|
infoPtr->CurVal = infoPtr->MaxVal - max( infoPtr->Page-1, 0 );
|
|
|
|
TRACE(" new values: page=%d pos=%d min=%d max=%d\n",
|
|
infoPtr->Page, infoPtr->CurVal,
|
|
infoPtr->MinVal, infoPtr->MaxVal );
|
|
|
|
/* don't change the scrollbar state if SetScrollInfo
|
|
* is just called with SIF_DISABLENOSCROLL
|
|
*/
|
|
if(!(info->fMask & SIF_ALL)) goto done;
|
|
|
|
/* Check if the scrollbar should be hidden or disabled */
|
|
|
|
if (info->fMask & (SIF_RANGE | SIF_PAGE | SIF_DISABLENOSCROLL))
|
|
{
|
|
new_flags = infoPtr->flags;
|
|
if (infoPtr->MinVal >= infoPtr->MaxVal - max( infoPtr->Page-1, 0 ))
|
|
{
|
|
/* Hide or disable scroll-bar */
|
|
if (info->fMask & SIF_DISABLENOSCROLL)
|
|
{
|
|
new_flags = ESB_DISABLE_BOTH;
|
|
*action |= SA_SSI_REFRESH;
|
|
}
|
|
else if ((nBar != SB_CTL) && bChangeParams)
|
|
{
|
|
*action = SA_SSI_HIDE;
|
|
goto done;
|
|
}
|
|
}
|
|
else /* Show and enable scroll-bar */
|
|
{
|
|
new_flags = 0;
|
|
if ((nBar != SB_CTL) && bChangeParams)
|
|
*action |= SA_SSI_SHOW;
|
|
}
|
|
|
|
if (infoPtr->flags != new_flags) /* check arrow flags */
|
|
{
|
|
infoPtr->flags = new_flags;
|
|
*action |= SA_SSI_REPAINT_ARROWS;
|
|
}
|
|
}
|
|
|
|
done:
|
|
/* Return current position */
|
|
|
|
return infoPtr->CurVal;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollInfo (USER.476)
|
|
*/
|
|
BOOL16 WINAPI GetScrollInfo16( HWND16 hwnd, INT16 nBar, LPSCROLLINFO info )
|
|
{
|
|
return GetScrollInfo( hwnd, nBar, info );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollInfo (USER32.@)
|
|
* GetScrollInfo can be used to retrieve the position, upper bound,
|
|
* lower bound, and page size of a scrollbar control.
|
|
*
|
|
* RETURNS STD
|
|
*/
|
|
BOOL WINAPI GetScrollInfo(
|
|
HWND hwnd /* [in] Handle of window */ ,
|
|
INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
|
|
LPSCROLLINFO info /* [in/out] (info.fMask [in] specifies which values are to retrieve) */)
|
|
{
|
|
SCROLLBAR_INFO *infoPtr;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return FALSE;
|
|
if (info->fMask & ~(SIF_ALL | SIF_DISABLENOSCROLL)) return FALSE;
|
|
if ((info->cbSize != sizeof(*info)) &&
|
|
(info->cbSize != sizeof(*info)-sizeof(info->nTrackPos))) return FALSE;
|
|
|
|
if (info->fMask & SIF_PAGE) info->nPage = infoPtr->Page;
|
|
if (info->fMask & SIF_POS) info->nPos = infoPtr->CurVal;
|
|
if ((info->fMask & SIF_TRACKPOS) && (info->cbSize == sizeof(*info)))
|
|
info->nTrackPos = (SCROLL_TrackingWin == WIN_GetFullHandle(hwnd)) ? SCROLL_TrackingVal : infoPtr->CurVal;
|
|
if (info->fMask & SIF_RANGE)
|
|
{
|
|
info->nMin = infoPtr->MinVal;
|
|
info->nMax = infoPtr->MaxVal;
|
|
}
|
|
return (info->fMask & SIF_ALL) != 0;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollPos (USER.62)
|
|
*/
|
|
INT16 WINAPI SetScrollPos16( HWND16 hwnd, INT16 nBar, INT16 nPos,
|
|
BOOL16 bRedraw )
|
|
{
|
|
return (INT16)SetScrollPos( hwnd, nBar, nPos, bRedraw );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollPos (USER32.@)
|
|
*
|
|
* RETURNS
|
|
* Success: Scrollbar position
|
|
* Failure: 0
|
|
*
|
|
* REMARKS
|
|
* Note the ambiguity when 0 is returned. Use GetLastError
|
|
* to make sure there was an error (and to know which one).
|
|
*/
|
|
INT WINAPI SetScrollPos(
|
|
HWND hwnd /* [in] Handle of window whose scrollbar will be affected */,
|
|
INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
|
|
INT nPos /* [in] New value */,
|
|
BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */ )
|
|
{
|
|
SCROLLINFO info;
|
|
SCROLLBAR_INFO *infoPtr;
|
|
INT oldPos;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return 0;
|
|
oldPos = infoPtr->CurVal;
|
|
info.cbSize = sizeof(info);
|
|
info.nPos = nPos;
|
|
info.fMask = SIF_POS;
|
|
SetScrollInfo( hwnd, nBar, &info, bRedraw );
|
|
return oldPos;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollPos (USER.63)
|
|
*/
|
|
INT16 WINAPI GetScrollPos16( HWND16 hwnd, INT16 nBar )
|
|
{
|
|
return (INT16)GetScrollPos( hwnd, nBar );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollPos (USER32.@)
|
|
*
|
|
* RETURNS
|
|
* Success: Current position
|
|
* Failure: 0
|
|
*
|
|
* REMARKS
|
|
* Note the ambiguity when 0 is returned. Use GetLastError
|
|
* to make sure there was an error (and to know which one).
|
|
*/
|
|
INT WINAPI GetScrollPos(
|
|
HWND hwnd, /* [in] Handle of window */
|
|
INT nBar /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
|
|
{
|
|
SCROLLBAR_INFO *infoPtr;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return 0;
|
|
return infoPtr->CurVal;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollRange (USER.64)
|
|
*/
|
|
void WINAPI SetScrollRange16( HWND16 hwnd, INT16 nBar,
|
|
INT16 MinVal, INT16 MaxVal, BOOL16 bRedraw )
|
|
{
|
|
/* Invalid range -> range is set to (0,0) */
|
|
if ((INT)MaxVal - (INT)MinVal > 0x7fff) MinVal = MaxVal = 0;
|
|
SetScrollRange( hwnd, nBar, MinVal, MaxVal, bRedraw );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SetScrollRange (USER32.@)
|
|
*
|
|
* RETURNS STD
|
|
*/
|
|
BOOL WINAPI SetScrollRange(
|
|
HWND hwnd, /* [in] Handle of window whose scrollbar will be affected */
|
|
INT nBar, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
|
|
INT MinVal, /* [in] New minimum value */
|
|
INT MaxVal, /* [in] New maximum value */
|
|
BOOL bRedraw /* [in] Should scrollbar be redrawn afterwards ? */)
|
|
{
|
|
SCROLLINFO info;
|
|
|
|
info.cbSize = sizeof(info);
|
|
info.nMin = MinVal;
|
|
info.nMax = MaxVal;
|
|
info.fMask = SIF_RANGE;
|
|
SetScrollInfo( hwnd, nBar, &info, bRedraw );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SCROLL_SetNCSbState
|
|
*
|
|
* Updates both scrollbars at the same time. Used by MDI CalcChildScroll().
|
|
*/
|
|
INT SCROLL_SetNCSbState(HWND hwnd, int vMin, int vMax, int vPos,
|
|
int hMin, int hMax, int hPos)
|
|
{
|
|
INT vA, hA;
|
|
SCROLLINFO vInfo, hInfo;
|
|
|
|
vInfo.cbSize = hInfo.cbSize = sizeof(SCROLLINFO);
|
|
vInfo.nMin = vMin;
|
|
vInfo.nMax = vMax;
|
|
vInfo.nPos = vPos;
|
|
hInfo.nMin = hMin;
|
|
hInfo.nMax = hMax;
|
|
hInfo.nPos = hPos;
|
|
vInfo.fMask = hInfo.fMask = SIF_RANGE | SIF_POS;
|
|
|
|
SCROLL_SetScrollInfo( hwnd, SB_VERT, &vInfo, &vA );
|
|
SCROLL_SetScrollInfo( hwnd, SB_HORZ, &hInfo, &hA );
|
|
|
|
if( !SCROLL_ShowScrollBar( hwnd, SB_BOTH,
|
|
(hA & SA_SSI_SHOW),(vA & SA_SSI_SHOW) ) )
|
|
{
|
|
/* SetWindowPos() wasn't called, just redraw the scrollbars if needed */
|
|
if( vA & SA_SSI_REFRESH )
|
|
SCROLL_RefreshScrollBar( hwnd, SB_VERT, FALSE, TRUE );
|
|
|
|
if( hA & SA_SSI_REFRESH )
|
|
SCROLL_RefreshScrollBar( hwnd, SB_HORZ, FALSE, TRUE );
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollRange (USER.65)
|
|
*/
|
|
BOOL16 WINAPI GetScrollRange16( HWND16 hwnd, INT16 nBar,
|
|
LPINT16 lpMin, LPINT16 lpMax)
|
|
{
|
|
INT min, max;
|
|
BOOL16 ret = GetScrollRange( hwnd, nBar, &min, &max );
|
|
if (lpMin) *lpMin = min;
|
|
if (lpMax) *lpMax = max;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* GetScrollRange (USER32.@)
|
|
*
|
|
* RETURNS STD
|
|
*/
|
|
BOOL WINAPI GetScrollRange(
|
|
HWND hwnd, /* [in] Handle of window */
|
|
INT nBar, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
|
|
LPINT lpMin, /* [out] Where to store minimum value */
|
|
LPINT lpMax /* [out] Where to store maximum value */)
|
|
{
|
|
SCROLLBAR_INFO *infoPtr;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar )))
|
|
{
|
|
if (lpMin) lpMin = 0;
|
|
if (lpMax) lpMax = 0;
|
|
return FALSE;
|
|
}
|
|
if (lpMin) *lpMin = infoPtr->MinVal;
|
|
if (lpMax) *lpMax = infoPtr->MaxVal;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* SCROLL_ShowScrollBar()
|
|
*
|
|
* Back-end for ShowScrollBar(). Returns FALSE if no action was taken.
|
|
*/
|
|
BOOL SCROLL_ShowScrollBar( HWND hwnd, INT nBar,
|
|
BOOL fShowH, BOOL fShowV )
|
|
{
|
|
WND *wndPtr = WIN_FindWndPtr( hwnd );
|
|
BOOL retvalue = FALSE;
|
|
|
|
if (!wndPtr) return FALSE;
|
|
TRACE("hwnd=%04x bar=%d horz=%d, vert=%d\n",
|
|
hwnd, nBar, fShowH, fShowV );
|
|
|
|
switch(nBar)
|
|
{
|
|
case SB_CTL:
|
|
ShowWindow( hwnd, fShowH ? SW_SHOW : SW_HIDE );
|
|
retvalue = TRUE;
|
|
goto END;
|
|
|
|
case SB_BOTH:
|
|
case SB_HORZ:
|
|
if (fShowH)
|
|
{
|
|
fShowH = !(wndPtr->dwStyle & WS_HSCROLL);
|
|
wndPtr->dwStyle |= WS_HSCROLL;
|
|
}
|
|
else /* hide it */
|
|
{
|
|
fShowH = (wndPtr->dwStyle & WS_HSCROLL);
|
|
wndPtr->dwStyle &= ~WS_HSCROLL;
|
|
}
|
|
if( nBar == SB_HORZ ) {
|
|
fShowV = FALSE;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
|
|
case SB_VERT:
|
|
if (fShowV)
|
|
{
|
|
fShowV = !(wndPtr->dwStyle & WS_VSCROLL);
|
|
wndPtr->dwStyle |= WS_VSCROLL;
|
|
}
|
|
else /* hide it */
|
|
{
|
|
fShowV = (wndPtr->dwStyle & WS_VSCROLL);
|
|
wndPtr->dwStyle &= ~WS_VSCROLL;
|
|
}
|
|
if ( nBar == SB_VERT )
|
|
fShowH = FALSE;
|
|
break;
|
|
|
|
default:
|
|
retvalue = FALSE; /* Nothing to do! */
|
|
goto END;
|
|
}
|
|
|
|
if( fShowH || fShowV ) /* frame has been changed, let the window redraw itself */
|
|
{
|
|
SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE
|
|
| SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED );
|
|
retvalue = TRUE;
|
|
goto END;
|
|
}
|
|
|
|
retvalue = FALSE; /* no frame changes */
|
|
END:
|
|
WIN_ReleaseWndPtr(wndPtr);
|
|
return retvalue;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* ShowScrollBar (USER.267)
|
|
*/
|
|
void WINAPI ShowScrollBar16( HWND16 hwnd, INT16 nBar, BOOL16 fShow )
|
|
{
|
|
SCROLL_ShowScrollBar( hwnd, nBar, (nBar == SB_VERT) ? 0 : fShow,
|
|
(nBar == SB_HORZ) ? 0 : fShow );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* ShowScrollBar (USER32.@)
|
|
*
|
|
* RETURNS STD
|
|
*/
|
|
BOOL WINAPI ShowScrollBar(
|
|
HWND hwnd, /* [in] Handle of window whose scrollbar(s) will be affected */
|
|
INT nBar, /* [in] One of SB_HORZ, SB_VERT, SB_BOTH or SB_CTL */
|
|
BOOL fShow /* [in] TRUE = show, FALSE = hide */)
|
|
{
|
|
SCROLL_ShowScrollBar( hwnd, nBar, (nBar == SB_VERT) ? 0 : fShow,
|
|
(nBar == SB_HORZ) ? 0 : fShow );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* EnableScrollBar (USER.482)
|
|
*/
|
|
BOOL16 WINAPI EnableScrollBar16( HWND16 hwnd, INT16 nBar, UINT16 flags )
|
|
{
|
|
return EnableScrollBar( hwnd, nBar, flags );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* EnableScrollBar (USER32.@)
|
|
*/
|
|
BOOL WINAPI EnableScrollBar( HWND hwnd, INT nBar, UINT flags )
|
|
{
|
|
BOOL bFineWithMe;
|
|
SCROLLBAR_INFO *infoPtr;
|
|
|
|
TRACE("%04x %d %d\n", hwnd, nBar, flags );
|
|
|
|
flags &= ESB_DISABLE_BOTH;
|
|
|
|
if (nBar == SB_BOTH)
|
|
{
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, SB_VERT ))) return FALSE;
|
|
if (!(bFineWithMe = (infoPtr->flags == flags)) )
|
|
{
|
|
infoPtr->flags = flags;
|
|
SCROLL_RefreshScrollBar( hwnd, SB_VERT, TRUE, TRUE );
|
|
}
|
|
nBar = SB_HORZ;
|
|
}
|
|
else
|
|
bFineWithMe = TRUE;
|
|
|
|
if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return FALSE;
|
|
if (bFineWithMe && infoPtr->flags == flags) return FALSE;
|
|
infoPtr->flags = flags;
|
|
|
|
SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, TRUE );
|
|
return TRUE;
|
|
}
|