| /* |
| * Scrollbar control |
| * |
| * Copyright 1993 Martin Ayotte |
| * Copyright 1994, 1996 Alexandre Julliard |
| */ |
| |
| #include "wine/winuser16.h" |
| #include "scroll.h" |
| #include "heap.h" |
| #include "win.h" |
| #include "debugtools.h" |
| #include "cache.h" |
| #include "tweak.h" |
| |
| DEFAULT_DEBUG_CHANNEL(scroll) |
| |
| |
| static HBITMAP hUpArrow = 0; |
| static HBITMAP hDnArrow = 0; |
| static HBITMAP hLfArrow = 0; |
| static HBITMAP hRgArrow = 0; |
| static HBITMAP hUpArrowD = 0; |
| static HBITMAP hDnArrowD = 0; |
| static HBITMAP hLfArrowD = 0; |
| static HBITMAP hRgArrowD = 0; |
| static HBITMAP hUpArrowI = 0; |
| static HBITMAP hDnArrowI = 0; |
| static HBITMAP hLfArrowI = 0; |
| static HBITMAP hRgArrowI = 0; |
| |
| #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 ); |
| |
| |
| /*********************************************************************** |
| * 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_GetPtrScrollInfo |
| */ |
| static SCROLLBAR_INFO *SCROLL_GetPtrScrollInfo( WND* wndPtr, INT nBar ) |
| { |
| SCROLLBAR_INFO *infoPtr; |
| |
| 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: return NULL; |
| } |
| |
| if (!infoPtr) /* Create the info structure if needed */ |
| { |
| if ((infoPtr = HeapAlloc( SystemHeap, 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(); |
| } |
| return infoPtr; |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_GetScrollInfo |
| */ |
| static SCROLLBAR_INFO *SCROLL_GetScrollInfo( HWND hwnd, INT nBar ) |
| { |
| SCROLLBAR_INFO *retvalue; |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| retvalue = SCROLL_GetPtrScrollInfo( wndPtr, nBar ); |
| WIN_ReleaseWndPtr(wndPtr); |
| return retvalue; |
| } |
| |
| |
| /*********************************************************************** |
| * 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_GetPtrScrollInfo( wndPtr, 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 */ |
| if (TWEAK_WineLook == WIN31_LOOK) { |
| hBrush = GetSysColorBrush(COLOR_WINDOW); |
| } else { |
| /* Under Win9x look & feel, scrollbars don't have a solid border. |
| * To make scrollbar's background different from the window |
| * background, we need to apply a gray 0x55aa pattern brush. |
| * Otherwise it won't look good. |
| */ |
| hBrush = CACHE_GetPattern55AABrush(); |
| } |
| } |
| 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_GetPtrScrollInfo( wndPtr, 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; |
| |
| vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, |
| &arrowSize, &thumbSize, &thumbPos ); |
| |
| 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 ); |
| |
| 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 ) |
| { |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| 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: |
| WIN_ReleaseWndPtr(wndPtr); |
| return; |
| } |
| SendMessageA( GetParent(hwnd), |
| (wndPtr->dwStyle & SBS_VERT) ? WM_VSCROLL : WM_HSCROLL, |
| msg, hwnd ); |
| WIN_ReleaseWndPtr(wndPtr); |
| } |
| |
| |
| /*********************************************************************** |
| * 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 */ |
| 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) SetFocus( hwnd ); |
| break; |
| |
| case WM_MOUSEMOVE: |
| hittest = SCROLL_HitTest( hwnd, nBar, pt, TRUE ); |
| prevPt = pt; |
| break; |
| |
| case WM_LBUTTONUP: |
| hittest = SCROLL_NOWHERE; |
| ReleaseCapture(); |
| 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 |
| */ |
| LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT message, WPARAM wParam, |
| LPARAM lParam ) |
| { |
| switch(message) |
| { |
| case WM_CREATE: |
| { |
| CREATESTRUCTA *lpCreat = (CREATESTRUCTA *)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; |
| CONV_POINT16TO32( (POINT16 *)&lParam, &pt ); |
| SCROLL_HandleScrollEvent( hwnd, SB_CTL, message, pt ); |
| } |
| break; |
| |
| case WM_KEYDOWN: |
| SCROLL_HandleKbdEvent( hwnd, wParam ); |
| 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: |
| SetScrollRange( hwnd, SB_CTL, wParam, lParam, FALSE ); |
| return 0; /* FIXME: return previous position */ |
| |
| 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: |
| SetScrollRange( hwnd, SB_CTL, wParam, lParam, TRUE ); |
| return 0; /* FIXME: return previous position */ |
| |
| 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 DefWindowProcA( hwnd, message, wParam, lParam ); |
| } |
| return 0; |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollInfo16 (USER.475) |
| */ |
| INT16 WINAPI SetScrollInfo16( HWND16 hwnd, INT16 nBar, const SCROLLINFO *info, |
| BOOL16 bRedraw ) |
| { |
| return (INT16)SetScrollInfo( hwnd, nBar, info, bRedraw ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollInfo32 (USER32.501) |
| * SetScrollInfo32 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 /* [I] Handle of window whose scrollbar will be affected */, |
| INT nBar /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */, |
| const SCROLLINFO *info /* [I] Specifies what to change and new values */, |
| BOOL bRedraw /* [I] 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; |
| |
| *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)) |
| { |
| DPRINTF( "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; |
| } |
| } |
| |
| /* 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; |
| } |
| else |
| { |
| if( infoPtr->MinVal != info->nMin || |
| infoPtr->MaxVal != info->nMax ) |
| { |
| *action |= SA_SSI_REFRESH; |
| infoPtr->MinVal = info->nMin; |
| infoPtr->MaxVal = info->nMax; |
| } |
| } |
| } |
| |
| /* 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 ); |
| |
| /* 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) |
| { |
| *action = SA_SSI_HIDE; |
| goto done; |
| } |
| } |
| else /* Show and enable scroll-bar */ |
| { |
| new_flags = 0; |
| if (nBar != SB_CTL) |
| *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; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollInfo16 (USER.476) |
| */ |
| BOOL16 WINAPI GetScrollInfo16( HWND16 hwnd, INT16 nBar, LPSCROLLINFO info ) |
| { |
| return GetScrollInfo( hwnd, nBar, info ); |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollInfo32 (USER32.284) |
| * GetScrollInfo32 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 /* [I] Handle of window */ , |
| INT nBar /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */, |
| LPSCROLLINFO info /* [IO] (info.fMask [I] 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==hwnd) ? SCROLL_TrackingVal : infoPtr->CurVal; |
| if (info->fMask & SIF_RANGE) |
| { |
| info->nMin = infoPtr->MinVal; |
| info->nMax = infoPtr->MaxVal; |
| } |
| return (info->fMask & SIF_ALL) != 0; |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollPos16 (USER.62) |
| */ |
| INT16 WINAPI SetScrollPos16( HWND16 hwnd, INT16 nBar, INT16 nPos, |
| BOOL16 bRedraw ) |
| { |
| return (INT16)SetScrollPos( hwnd, nBar, nPos, bRedraw ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollPos32 (USER32.502) |
| * |
| * 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 /* [I] Handle of window whose scrollbar will be affected */, |
| INT nBar /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */, |
| INT nPos /* [I] New value */, |
| BOOL bRedraw /* [I] 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; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollPos16 (USER.63) |
| */ |
| INT16 WINAPI GetScrollPos16( HWND16 hwnd, INT16 nBar ) |
| { |
| return (INT16)GetScrollPos( hwnd, nBar ); |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollPos32 (USER32.285) |
| * |
| * 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, /* [I] Handle of window */ |
| INT nBar /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */) |
| { |
| SCROLLBAR_INFO *infoPtr; |
| |
| if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return 0; |
| return infoPtr->CurVal; |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollRange16 (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 ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollRange32 (USER32.503) |
| * |
| * RETURNS STD |
| */ |
| BOOL WINAPI SetScrollRange( |
| HWND hwnd, /* [I] Handle of window whose scrollbar will be affected */ |
| INT nBar, /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */ |
| INT MinVal, /* [I] New minimum value */ |
| INT MaxVal, /* [I] New maximum value */ |
| BOOL bRedraw /* [I] 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(WND* wndPtr, 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; hInfo.nMin = hMin; |
| vInfo.nMax = vMax; hInfo.nMax = hMax; |
| vInfo.nPos = vPos; hInfo.nPos = hPos; |
| vInfo.fMask = hInfo.fMask = SIF_RANGE | SIF_POS; |
| |
| SCROLL_SetScrollInfo( wndPtr->hwndSelf, SB_VERT, &vInfo, &vA ); |
| SCROLL_SetScrollInfo( wndPtr->hwndSelf, SB_HORZ, &hInfo, &hA ); |
| |
| if( !SCROLL_ShowScrollBar( wndPtr->hwndSelf, 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( wndPtr->hwndSelf, SB_VERT, FALSE, TRUE ); |
| |
| if( hA & SA_SSI_REFRESH ) |
| SCROLL_RefreshScrollBar( wndPtr->hwndSelf, SB_HORZ, FALSE, TRUE ); |
| } |
| return 0; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollRange16 (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; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollRange32 (USER32.286) |
| * |
| * RETURNS STD |
| */ |
| BOOL WINAPI GetScrollRange( |
| HWND hwnd, /* [I] Handle of window */ |
| INT nBar, /* [I] One of SB_HORZ, SB_VERT, or SB_CTL */ |
| LPINT lpMin, /* [O] Where to store minimum value */ |
| LPINT lpMax /* [O] 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. |
| * NOTE: fShowV/fShowH must be zero when nBar is SB_HORZ/SB_VERT. |
| */ |
| 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; |
| } |
| |
| |
| /************************************************************************* |
| * ShowScrollBar16 (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 ); |
| } |
| |
| |
| /************************************************************************* |
| * ShowScrollBar32 (USER32.532) |
| * |
| * RETURNS STD |
| */ |
| BOOL WINAPI ShowScrollBar( |
| HWND hwnd, /* [I] Handle of window whose scrollbar(s) will be affected */ |
| INT nBar, /* [I] One of SB_HORZ, SB_VERT, SB_BOTH or SB_CTL */ |
| BOOL fShow /* [I] TRUE = show, FALSE = hide */) |
| { |
| SCROLL_ShowScrollBar( hwnd, nBar, (nBar == SB_VERT) ? 0 : fShow, |
| (nBar == SB_HORZ) ? 0 : fShow ); |
| return TRUE; |
| } |
| |
| |
| /************************************************************************* |
| * EnableScrollBar16 (USER.482) |
| */ |
| BOOL16 WINAPI EnableScrollBar16( HWND16 hwnd, INT16 nBar, UINT16 flags ) |
| { |
| return EnableScrollBar( hwnd, nBar, flags ); |
| } |
| |
| |
| /************************************************************************* |
| * EnableScrollBar32 (USER32.171) |
| */ |
| 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; |
| } |
