| /* |
| * Scrollbar control |
| * |
| * Copyright 1993 Martin Ayotte |
| * Copyright 1994, 1996 Alexandre Julliard |
| */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include "windows.h" |
| #include "sysmetrics.h" |
| #include "scroll.h" |
| #include "graphics.h" |
| #include "heap.h" |
| #include "win.h" |
| #include "debug.h" |
| |
| |
| static HBITMAP32 hUpArrow = 0; |
| static HBITMAP32 hDnArrow = 0; |
| static HBITMAP32 hLfArrow = 0; |
| static HBITMAP32 hRgArrow = 0; |
| static HBITMAP32 hUpArrowD = 0; |
| static HBITMAP32 hDnArrowD = 0; |
| static HBITMAP32 hLfArrowD = 0; |
| static HBITMAP32 hRgArrowD = 0; |
| static HBITMAP32 hUpArrowI = 0; |
| static HBITMAP32 hDnArrowI = 0; |
| static HBITMAP32 hLfArrowI = 0; |
| static HBITMAP32 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 |
| |
| /* 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 */ |
| }; |
| |
| /* Thumb-tracking info */ |
| static HWND32 SCROLL_TrackingWin = 0; |
| static INT32 SCROLL_TrackingBar = 0; |
| static INT32 SCROLL_TrackingPos = 0; |
| static INT32 SCROLL_TrackingVal = 0; |
| |
| /* Is the moving thumb being displayed? */ |
| static BOOL32 SCROLL_MovingThumb = FALSE; |
| |
| /*********************************************************************** |
| * SCROLL_LoadBitmaps |
| */ |
| static void SCROLL_LoadBitmaps(void) |
| { |
| hUpArrow = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_UPARROW) ); |
| hDnArrow = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_DNARROW) ); |
| hLfArrow = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_LFARROW) ); |
| hRgArrow = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_RGARROW) ); |
| hUpArrowD = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_UPARROWD) ); |
| hDnArrowD = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_DNARROWD) ); |
| hLfArrowD = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_LFARROWD) ); |
| hRgArrowD = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_RGARROWD) ); |
| hUpArrowI = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_UPARROWI) ); |
| hDnArrowI = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_DNARROWI) ); |
| hLfArrowI = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_LFARROWI) ); |
| hRgArrowI = LoadBitmap16( 0, MAKEINTRESOURCE(OBM_RGARROWI) ); |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_GetPtrScrollInfo |
| */ |
| static SCROLLBAR_INFO *SCROLL_GetPtrScrollInfo( WND* wndPtr, INT32 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( HWND32 hwnd, INT32 nBar ) |
| { |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| return SCROLL_GetPtrScrollInfo( wndPtr, nBar ); |
| } |
| |
| |
| /*********************************************************************** |
| * 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 BOOL32 SCROLL_GetScrollBarRect( HWND32 hwnd, INT32 nBar, RECT32 *lprect, |
| INT32 *arrowSize, INT32 *thumbSize, |
| INT32 *thumbPos ) |
| { |
| INT32 pixels; |
| BOOL32 vertical; |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| |
| switch(nBar) |
| { |
| case SB_HORZ: |
| lprect->left = wndPtr->rectClient.left - wndPtr->rectWindow.left - 1; |
| lprect->top = wndPtr->rectClient.bottom - wndPtr->rectWindow.top; |
| lprect->right = wndPtr->rectClient.right - wndPtr->rectWindow.left +1; |
| lprect->bottom = lprect->top + SYSMETRICS_CYHSCROLL + 1; |
| vertical = FALSE; |
| break; |
| |
| case SB_VERT: |
| lprect->left = wndPtr->rectClient.right - wndPtr->rectWindow.left; |
| lprect->top = wndPtr->rectClient.top - wndPtr->rectWindow.top - 1; |
| lprect->right = lprect->left + SYSMETRICS_CXVSCROLL + 1; |
| lprect->bottom = wndPtr->rectClient.bottom - wndPtr->rectWindow.top +1; |
| vertical = TRUE; |
| break; |
| |
| case SB_CTL: |
| GetClientRect32( hwnd, lprect ); |
| vertical = ((wndPtr->dwStyle & SBS_VERT) != 0); |
| break; |
| |
| default: |
| return FALSE; |
| } |
| |
| if (vertical) pixels = lprect->bottom - lprect->top; |
| else pixels = lprect->right - lprect->left; |
| |
| if (pixels <= 2*SYSMETRICS_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 = SYSMETRICS_CXVSCROLL; |
| pixels -= 2 * SYSMETRICS_CXVSCROLL; |
| |
| if (info->Page) |
| { |
| *thumbSize = pixels * info->Page / (info->MaxVal-info->MinVal+1); |
| if (*thumbSize < SCROLL_MIN_THUMB) *thumbSize = SCROLL_MIN_THUMB; |
| } |
| else *thumbSize = SYSMETRICS_CXVSCROLL; |
| |
| if (((pixels -= *thumbSize + 1) < 0) || |
| ((info->flags & ESB_DISABLE_BOTH) == ESB_DISABLE_BOTH)) |
| { |
| /* Rectangle too small or scrollbar disabled -> no thumb */ |
| *thumbPos = *thumbSize = 0; |
| } |
| else |
| { |
| INT32 max = info->MaxVal - MAX( info->Page-1, 0 ); |
| if (info->MinVal >= max) |
| *thumbPos = *arrowSize; |
| else |
| *thumbPos = *arrowSize + pixels * (info->CurVal-info->MinVal) / |
| (max - info->MinVal); |
| } |
| } |
| return vertical; |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_GetThumbVal |
| * |
| * Compute the current scroll position based on the thumb position in pixels |
| * from the top of the scroll-bar. |
| */ |
| static UINT32 SCROLL_GetThumbVal( SCROLLBAR_INFO *infoPtr, RECT32 *rect, |
| BOOL32 vertical, INT32 pos ) |
| { |
| INT32 thumbSize; |
| INT32 pixels = vertical ? rect->bottom-rect->top : rect->right-rect->left; |
| |
| if ((pixels -= 2*SYSMETRICS_CXVSCROLL) <= 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 = SYSMETRICS_CXVSCROLL; |
| |
| if ((pixels -= thumbSize + 1) <= 0) return infoPtr->MinVal; |
| |
| pos = MAX( 0, pos - SYSMETRICS_CXVSCROLL ); |
| 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_HitTest |
| * |
| * Scroll-bar hit testing (don't confuse this with WM_NCHITTEST!). |
| */ |
| static enum SCROLL_HITTEST SCROLL_HitTest( HWND32 hwnd, INT32 nBar, |
| POINT32 pt ) |
| { |
| INT32 arrowSize, thumbSize, thumbPos; |
| RECT32 rect; |
| |
| BOOL32 vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, |
| &arrowSize, &thumbSize, &thumbPos ); |
| if (!PtInRect32( &rect, pt )) return SCROLL_NOWHERE; |
| |
| if (vertical) |
| { |
| if (pt.y <= rect.top + arrowSize + 1) 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; |
| return SCROLL_THUMB; |
| } |
| 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( HDC32 hdc, SCROLLBAR_INFO *infoPtr, |
| RECT32 *rect, INT32 arrowSize, BOOL32 vertical, |
| BOOL32 top_pressed, BOOL32 bottom_pressed ) |
| { |
| HDC32 hdcMem = CreateCompatibleDC32( hdc ); |
| HBITMAP32 hbmpPrev = SelectObject32( hdcMem, vertical ? |
| TOP_ARROW(infoPtr->flags, top_pressed) |
| : LEFT_ARROW(infoPtr->flags, top_pressed)); |
| SetStretchBltMode32( hdc, STRETCH_DELETESCANS ); |
| StretchBlt32( hdc, rect->left, rect->top, |
| vertical ? rect->right-rect->left : arrowSize+1, |
| vertical ? arrowSize+1 : rect->bottom-rect->top, |
| hdcMem, 0, 0, |
| SYSMETRICS_CXVSCROLL + 1, SYSMETRICS_CYHSCROLL + 1, |
| SRCCOPY ); |
| |
| SelectObject32( hdcMem, vertical ? |
| BOTTOM_ARROW( infoPtr->flags, bottom_pressed ) |
| : RIGHT_ARROW( infoPtr->flags, bottom_pressed ) ); |
| if (vertical) |
| StretchBlt32( hdc, rect->left, rect->bottom - arrowSize - 1, |
| rect->right - rect->left, arrowSize + 1, |
| hdcMem, 0, 0, |
| SYSMETRICS_CXVSCROLL + 1, SYSMETRICS_CYHSCROLL + 1, |
| SRCCOPY ); |
| else |
| StretchBlt32( hdc, rect->right - arrowSize - 1, rect->top, |
| arrowSize + 1, rect->bottom - rect->top, |
| hdcMem, 0, 0, |
| SYSMETRICS_CXVSCROLL + 1, SYSMETRICS_CYHSCROLL + 1, |
| SRCCOPY ); |
| SelectObject32( hdcMem, hbmpPrev ); |
| DeleteDC32( hdcMem ); |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_DrawMovingThumb |
| * |
| * Draw the moving thumb rectangle. |
| */ |
| static void SCROLL_DrawMovingThumb( HDC32 hdc, RECT32 *rect, BOOL32 vertical, |
| INT32 arrowSize, INT32 thumbSize ) |
| { |
| RECT32 r = *rect; |
| if (vertical) |
| { |
| r.top += SCROLL_TrackingPos; |
| if (r.top < rect->top + arrowSize) r.top = rect->top + arrowSize; |
| if (r.top + thumbSize >= rect->bottom - arrowSize) |
| r.top = rect->bottom - arrowSize - thumbSize - 1; |
| r.bottom = r.top + thumbSize + 1; |
| } |
| else |
| { |
| r.left += SCROLL_TrackingPos; |
| if (r.left < rect->left + arrowSize) r.left = rect->left + arrowSize; |
| if (r.left + thumbSize >= rect->right - arrowSize) |
| r.left = rect->right - arrowSize - thumbSize - 1; |
| r.right = r.left + thumbSize + 1; |
| } |
| InflateRect32( &r, -1, -1 ); |
| DrawFocusRect32( hdc, &r ); |
| SCROLL_MovingThumb = !SCROLL_MovingThumb; |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_DrawInterior |
| * |
| * Draw the scroll bar interior (everything except the arrows). |
| */ |
| static void SCROLL_DrawInterior( HWND32 hwnd, HDC32 hdc, INT32 nBar, |
| RECT32 *rect, INT32 arrowSize, |
| INT32 thumbSize, INT32 thumbPos, |
| UINT32 flags, BOOL32 vertical, |
| BOOL32 top_selected, BOOL32 bottom_selected ) |
| { |
| RECT32 r; |
| |
| /* Select the correct brush and pen */ |
| |
| SelectObject32( hdc, GetSysColorPen32(COLOR_WINDOWFRAME) ); |
| if ((flags & ESB_DISABLE_BOTH) == ESB_DISABLE_BOTH) |
| { |
| /* This ought to be the color of the parent window */ |
| SelectObject32( hdc, GetSysColorBrush32(COLOR_WINDOW) ); |
| } |
| else |
| { |
| if (nBar == SB_CTL) /* Only scrollbar controls send WM_CTLCOLOR */ |
| { |
| HBRUSH32 hbrush = SendMessage32A(GetParent32(hwnd), |
| WM_CTLCOLORSCROLLBAR, hdc, hwnd ); |
| SelectObject32( hdc, hbrush ); |
| } |
| else SelectObject32( hdc, GetSysColorBrush32(COLOR_SCROLLBAR) ); |
| } |
| |
| /* Calculate the scroll rectangle */ |
| |
| r = *rect; |
| if (vertical) |
| { |
| r.top += arrowSize - 1; |
| r.bottom -= arrowSize; |
| r.right--; |
| } |
| else |
| { |
| r.left += arrowSize - 1; |
| r.right -= arrowSize; |
| r.bottom--; |
| } |
| |
| /* Draw the scroll bar frame */ |
| |
| GRAPH_DrawRectangle( hdc, r.left, r.top, r.right - r.left, r.bottom - r.top, 0); |
| |
| /* Draw the scroll rectangles and thumb */ |
| |
| if (!thumbPos) /* No thumb to draw */ |
| { |
| PatBlt32( hdc, r.left+1, r.top+1, r.right - r.left - 2, |
| r.bottom - r.top - 2, PATCOPY ); |
| return; |
| } |
| |
| if (vertical) |
| { |
| PatBlt32( hdc, r.left + 1, r.top + 1, |
| r.right - r.left - 2, |
| thumbPos - arrowSize, |
| top_selected ? 0x0f0000 : PATCOPY ); |
| r.top += thumbPos - arrowSize; |
| PatBlt32( hdc, r.left + 1, r.top + thumbSize + 1, |
| r.right - r.left - 2, |
| r.bottom - r.top - thumbSize - 2, |
| bottom_selected ? 0x0f0000 : PATCOPY ); |
| r.bottom = r.top + thumbSize + 2; |
| } |
| else /* horizontal */ |
| { |
| PatBlt32( hdc, r.left + 1, r.top + 1, |
| thumbPos - arrowSize, |
| r.bottom - r.top - 2, |
| top_selected ? 0x0f0000 : PATCOPY ); |
| r.left += thumbPos - arrowSize; |
| PatBlt32( hdc, r.left + thumbSize + 1, r.top + 1, |
| r.right - r.left - thumbSize - 2, |
| r.bottom - r.top - 2, |
| bottom_selected ? 0x0f0000 : PATCOPY ); |
| r.right = r.left + thumbSize + 2; |
| } |
| |
| /* Draw the thumb */ |
| |
| SelectObject32( hdc, GetSysColorBrush32(COLOR_BTNFACE) ); |
| Rectangle32( hdc, r.left, r.top, r.right, r.bottom ); |
| InflateRect32( &r, -1, -1 ); |
| GRAPH_DrawReliefRect( hdc, &r, 1, 2, FALSE ); |
| if (SCROLL_MovingThumb && |
| (SCROLL_TrackingWin == hwnd) && |
| (SCROLL_TrackingBar == nBar)) |
| { |
| SCROLL_DrawMovingThumb( hdc, rect, vertical, arrowSize, thumbSize ); |
| SCROLL_MovingThumb = TRUE; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_DrawScrollBar |
| * |
| * Redraw the whole scrollbar. |
| */ |
| void SCROLL_DrawScrollBar( HWND32 hwnd, HDC32 hdc, INT32 nBar, BOOL32 arrows ) |
| { |
| INT32 arrowSize, thumbSize, thumbPos; |
| RECT32 rect; |
| BOOL32 vertical; |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| SCROLLBAR_INFO *infoPtr = SCROLL_GetPtrScrollInfo( wndPtr, nBar ); |
| |
| if (!wndPtr || !infoPtr || |
| ((nBar == SB_VERT) && !(wndPtr->dwStyle & WS_VSCROLL)) || |
| ((nBar == SB_HORZ) && !(wndPtr->dwStyle & WS_HSCROLL))) return; |
| |
| vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, |
| &arrowSize, &thumbSize, &thumbPos ); |
| /* Draw the arrows */ |
| |
| if (arrows && arrowSize) SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, |
| vertical, FALSE, FALSE ); |
| |
| SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize, |
| thumbPos, infoPtr->flags, vertical, FALSE, FALSE ); |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_RefreshScrollBar |
| * |
| * Repaint the scroll bar interior after a SetScrollRange() or |
| * SetScrollPos() call. |
| */ |
| static void SCROLL_RefreshScrollBar( HWND32 hwnd, INT32 nBar, BOOL32 arrows ) |
| { |
| HDC32 hdc = GetDCEx32( hwnd, 0, |
| DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW) ); |
| if (!hdc) return; |
| SCROLL_DrawScrollBar( hwnd, hdc, nBar, arrows ); |
| ReleaseDC32( hwnd, hdc ); |
| } |
| |
| |
| /*********************************************************************** |
| * SCROLL_HandleKbdEvent |
| * |
| * Handle a keyboard event (only for SB_CTL scrollbars). |
| */ |
| static void SCROLL_HandleKbdEvent( HWND32 hwnd, WPARAM32 wParam ) |
| { |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| WPARAM32 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; |
| } |
| SendMessage32A( GetParent32(hwnd), |
| (wndPtr->dwStyle & 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( HWND32 hwnd, INT32 nBar, UINT32 msg, POINT32 pt) |
| { |
| /* Previous mouse position for timer events */ |
| static POINT32 prevPt; |
| /* Hit test code of the last button-down event */ |
| static enum SCROLL_HITTEST trackHitTest; |
| /* Thumb position when tracking started. */ |
| static UINT32 trackThumbPos; |
| /* Position in the scroll-bar of the last button-down event. */ |
| static INT32 lastClickPos; |
| /* Position in the scroll-bar of the last mouse event. */ |
| static INT32 lastMousePos; |
| |
| enum SCROLL_HITTEST hittest; |
| HWND32 hwndOwner, hwndCtl; |
| BOOL32 vertical; |
| INT32 arrowSize, thumbSize, thumbPos; |
| RECT32 rect; |
| HDC32 hdc; |
| |
| SCROLLBAR_INFO *infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ); |
| if (!infoPtr) return; |
| if ((trackHitTest == SCROLL_NOWHERE) && (msg != WM_LBUTTONDOWN)) return; |
| |
| hdc = GetDCEx32( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW)); |
| vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, |
| &arrowSize, &thumbSize, &thumbPos ); |
| hwndOwner = (nBar == SB_CTL) ? GetParent32(hwnd) : hwnd; |
| hwndCtl = (nBar == SB_CTL) ? hwnd : 0; |
| |
| switch(msg) |
| { |
| case WM_LBUTTONDOWN: /* Initialise mouse tracking */ |
| trackHitTest = hittest = SCROLL_HitTest( hwnd, nBar, pt ); |
| lastClickPos = vertical ? (pt.y - rect.top) : (pt.x - rect.left); |
| lastMousePos = lastClickPos; |
| trackThumbPos = thumbPos; |
| prevPt = pt; |
| SetCapture32( hwnd ); |
| if (nBar == SB_CTL) SetFocus32( hwnd ); |
| break; |
| |
| case WM_MOUSEMOVE: |
| hittest = SCROLL_HitTest( hwnd, nBar, pt ); |
| prevPt = pt; |
| break; |
| |
| case WM_LBUTTONUP: |
| hittest = SCROLL_NOWHERE; |
| ReleaseCapture(); |
| break; |
| |
| case WM_SYSTIMER: |
| pt = prevPt; |
| hittest = SCROLL_HitTest( hwnd, nBar, pt ); |
| break; |
| |
| default: |
| return; /* Should never happen */ |
| } |
| |
| TRACE(scroll, "Event: hwnd=%04x bar=%d msg=%x pt=%d,%d hit=%d\n", |
| hwnd, nBar, msg, pt.x, pt.y, hittest ); |
| |
| switch(trackHitTest) |
| { |
| case SCROLL_NOWHERE: /* No tracking in progress */ |
| break; |
| |
| case SCROLL_TOP_ARROW: |
| SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, |
| (hittest == trackHitTest), FALSE ); |
| if (hittest == trackHitTest) |
| { |
| if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) |
| { |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| SB_LINEUP, hwndCtl ); |
| SetSystemTimer32( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ? |
| SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, |
| (TIMERPROC32)0 ); |
| } |
| } |
| else KillSystemTimer32( hwnd, SCROLL_TIMER ); |
| break; |
| |
| case SCROLL_TOP_RECT: |
| SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize, |
| thumbPos, infoPtr->flags, vertical, |
| (hittest == trackHitTest), FALSE ); |
| if (hittest == trackHitTest) |
| { |
| if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) |
| { |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| SB_PAGEUP, hwndCtl ); |
| SetSystemTimer32( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ? |
| SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, |
| (TIMERPROC32)0 ); |
| } |
| } |
| else KillSystemTimer32( hwnd, SCROLL_TIMER ); |
| break; |
| |
| case SCROLL_THUMB: |
| if (msg == WM_LBUTTONDOWN) |
| { |
| SCROLL_TrackingWin = hwnd; |
| SCROLL_TrackingBar = nBar; |
| SCROLL_TrackingPos = trackThumbPos + lastMousePos - lastClickPos; |
| SCROLL_DrawMovingThumb(hdc, &rect, vertical, arrowSize, thumbSize); |
| } |
| else if (msg == WM_LBUTTONUP) |
| { |
| SCROLL_TrackingWin = 0; |
| SCROLL_MovingThumb = FALSE; |
| SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize, |
| thumbPos, infoPtr->flags, vertical, |
| FALSE, FALSE ); |
| } |
| else /* WM_MOUSEMOVE */ |
| { |
| UINT32 pos; |
| |
| if (!PtInRect32( &rect, pt )) pos = lastClickPos; |
| else pos = vertical ? (pt.y - rect.top) : (pt.x - rect.left); |
| if (pos != lastMousePos) |
| { |
| SCROLL_DrawMovingThumb( hdc, &rect, vertical, |
| arrowSize, thumbSize ); |
| lastMousePos = pos; |
| SCROLL_TrackingPos = trackThumbPos + pos - lastClickPos; |
| SCROLL_TrackingVal = SCROLL_GetThumbVal( infoPtr, &rect, |
| vertical, |
| SCROLL_TrackingPos ); |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| MAKEWPARAM( SB_THUMBTRACK, SCROLL_TrackingVal), |
| hwndCtl ); |
| 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 == trackHitTest) ); |
| if (hittest == trackHitTest) |
| { |
| if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) |
| { |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| SB_PAGEDOWN, hwndCtl ); |
| SetSystemTimer32( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ? |
| SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, |
| (TIMERPROC32)0 ); |
| } |
| } |
| else KillSystemTimer32( hwnd, SCROLL_TIMER ); |
| break; |
| |
| case SCROLL_BOTTOM_ARROW: |
| SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, |
| FALSE, (hittest == trackHitTest) ); |
| if (hittest == trackHitTest) |
| { |
| if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) |
| { |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| SB_LINEDOWN, hwndCtl ); |
| SetSystemTimer32( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ? |
| SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, |
| (TIMERPROC32)0 ); |
| } |
| } |
| else KillSystemTimer32( hwnd, SCROLL_TIMER ); |
| break; |
| } |
| |
| if (msg == WM_LBUTTONUP) |
| { |
| if (trackHitTest == SCROLL_THUMB) |
| { |
| UINT32 val = SCROLL_GetThumbVal( infoPtr, &rect, vertical, |
| trackThumbPos + lastMousePos - lastClickPos ); |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| MAKEWPARAM( SB_THUMBPOSITION, val ), hwndCtl ); |
| } |
| else |
| SendMessage32A( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, |
| SB_ENDSCROLL, hwndCtl ); |
| trackHitTest = SCROLL_NOWHERE; /* Terminate tracking */ |
| } |
| |
| ReleaseDC32( hwnd, hdc ); |
| } |
| |
| |
| /*********************************************************************** |
| * ScrollBarWndProc |
| */ |
| LRESULT WINAPI ScrollBarWndProc( HWND32 hwnd, UINT32 message, WPARAM32 wParam, |
| LPARAM lParam ) |
| { |
| switch(message) |
| { |
| case WM_CREATE: |
| { |
| CREATESTRUCT32A *lpCreat = (CREATESTRUCT32A *)lParam; |
| if (lpCreat->style & SBS_SIZEBOX) |
| { |
| FIXME(scroll, "Unimplemented style SBS_SIZEBOX.\n" ); |
| return 0; |
| } |
| |
| if (lpCreat->style & SBS_VERT) |
| { |
| if (lpCreat->style & SBS_LEFTALIGN) |
| MoveWindow32( hwnd, lpCreat->x, lpCreat->y, |
| SYSMETRICS_CXVSCROLL+1, lpCreat->cy, FALSE ); |
| else if (lpCreat->style & SBS_RIGHTALIGN) |
| MoveWindow32( hwnd, |
| lpCreat->x+lpCreat->cx-SYSMETRICS_CXVSCROLL-1, |
| lpCreat->y, |
| SYSMETRICS_CXVSCROLL+1, lpCreat->cy, FALSE ); |
| } |
| else /* SBS_HORZ */ |
| { |
| if (lpCreat->style & SBS_TOPALIGN) |
| MoveWindow32( hwnd, lpCreat->x, lpCreat->y, |
| lpCreat->cx, SYSMETRICS_CYHSCROLL+1, FALSE ); |
| else if (lpCreat->style & SBS_BOTTOMALIGN) |
| MoveWindow32( hwnd, |
| lpCreat->x, |
| lpCreat->y+lpCreat->cy-SYSMETRICS_CYHSCROLL-1, |
| lpCreat->cx, SYSMETRICS_CYHSCROLL+1, FALSE ); |
| } |
| } |
| if (!hUpArrow) SCROLL_LoadBitmaps(); |
| TRACE(scroll, "ScrollBar creation, hwnd=%04x\n", hwnd ); |
| return 0; |
| |
| case WM_LBUTTONDOWN: |
| case WM_LBUTTONUP: |
| case WM_MOUSEMOVE: |
| case WM_SYSTIMER: |
| { |
| POINT32 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: |
| { |
| PAINTSTRUCT32 ps; |
| HDC32 hdc = BeginPaint32( hwnd, &ps ); |
| SCROLL_DrawScrollBar( hwnd, hdc, SB_CTL, TRUE ); |
| EndPaint32( hwnd, &ps ); |
| } |
| break; |
| |
| case SBM_SETPOS16: |
| case SBM_SETPOS32: |
| return SetScrollPos32( hwnd, SB_CTL, wParam, (BOOL32)lParam ); |
| |
| case SBM_GETPOS16: |
| case SBM_GETPOS32: |
| return GetScrollPos32( hwnd, SB_CTL ); |
| |
| case SBM_SETRANGE16: |
| SetScrollRange32( hwnd, SB_CTL, LOWORD(lParam), HIWORD(lParam), |
| wParam /* FIXME: Is this correct? */ ); |
| return 0; |
| |
| case SBM_SETRANGE32: |
| SetScrollRange32( hwnd, SB_CTL, wParam, lParam, FALSE ); |
| return 0; /* FIXME: return previous position */ |
| |
| case SBM_GETRANGE16: |
| FIXME(scroll, "don't know how to handle SBM_GETRANGE16 (wp=%04x,lp=%08lx)\n", wParam, lParam ); |
| return 0; |
| |
| case SBM_GETRANGE32: |
| GetScrollRange32( hwnd, SB_CTL, (LPINT32)wParam, (LPINT32)lParam ); |
| return 0; |
| |
| case SBM_ENABLE_ARROWS16: |
| case SBM_ENABLE_ARROWS32: |
| return EnableScrollBar32( hwnd, SB_CTL, wParam ); |
| |
| case SBM_SETRANGEREDRAW32: |
| SetScrollRange32( hwnd, SB_CTL, wParam, lParam, TRUE ); |
| return 0; /* FIXME: return previous position */ |
| |
| case SBM_SETSCROLLINFO32: |
| return SetScrollInfo32( hwnd, SB_CTL, (SCROLLINFO *)lParam, wParam ); |
| |
| case SBM_GETSCROLLINFO32: |
| return GetScrollInfo32( hwnd, SB_CTL, (SCROLLINFO *)lParam ); |
| |
| case 0x00e5: |
| case 0x00e7: |
| case 0x00e8: |
| case 0x00eb: |
| case 0x00ec: |
| case 0x00ed: |
| case 0x00ee: |
| case 0x00ef: |
| ERR(scroll, "unknown Win32 msg %04x wp=%08x lp=%08lx\n", |
| message, wParam, lParam ); |
| break; |
| |
| default: |
| if (message >= WM_USER) |
| WARN(scroll, "unknown msg %04x wp=%04x lp=%08lx\n", |
| message, wParam, lParam ); |
| return DefWindowProc32A( hwnd, message, wParam, lParam ); |
| } |
| return 0; |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollInfo16 (USER.475) |
| */ |
| INT16 WINAPI SetScrollInfo16( HWND16 hwnd, INT16 nBar, const SCROLLINFO *info, |
| BOOL16 bRedraw ) |
| { |
| return (INT16)SetScrollInfo32( hwnd, nBar, info, bRedraw ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollInfo32 (USER32.501) |
| */ |
| INT32 WINAPI SetScrollInfo32( HWND32 hwnd, INT32 nBar, const SCROLLINFO *info, |
| BOOL32 bRedraw ) |
| { |
| SCROLLBAR_INFO *infoPtr; |
| UINT32 new_flags; |
| BOOL32 repaint_arrows = FALSE; |
| dbg_decl_str(scroll, 256); |
| |
| 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; |
| |
| /* Set the page size */ |
| |
| if (info->fMask & SIF_PAGE) |
| { |
| dsprintf(scroll, " page=%d", info->nPage ); |
| infoPtr->Page = info->nPage; |
| } |
| |
| /* Set the scroll pos */ |
| |
| if (info->fMask & SIF_POS) |
| { |
| dsprintf(scroll, " pos=%d", info->nPos ); |
| infoPtr->CurVal = info->nPos; |
| } |
| |
| /* Set the scroll range */ |
| |
| if (info->fMask & SIF_RANGE) |
| { |
| dsprintf(scroll, " min=%d max=%d", info->nMin, info->nMax ); |
| |
| /* Invalid range -> range is set to (0,0) */ |
| if ((info->nMin > info->nMax) || |
| ((UINT32)(info->nMax - info->nMin) >= 0x80000000)) |
| { |
| infoPtr->MinVal = 0; |
| infoPtr->MaxVal = 0; |
| } |
| else |
| { |
| infoPtr->MinVal = info->nMin; |
| infoPtr->MaxVal = info->nMax; |
| } |
| } |
| |
| TRACE(scroll, "hwnd=%04x bar=%d %s\n", |
| hwnd, nBar, dbg_str(scroll)); |
| |
| /* 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(scroll, " 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; |
| else if (nBar != SB_CTL) |
| { |
| ShowScrollBar32( hwnd, nBar, FALSE ); |
| bRedraw = FALSE; /* No need to repaint anything */ |
| } |
| } |
| else /* Show and enable scroll-bar */ |
| { |
| new_flags = 0; |
| if (nBar != SB_CTL) ShowScrollBar32( hwnd, nBar, TRUE ); |
| } |
| |
| if (infoPtr->flags != new_flags) |
| { |
| infoPtr->flags = new_flags; |
| repaint_arrows = TRUE; |
| } |
| } |
| |
| if (bRedraw || repaint_arrows) |
| SCROLL_RefreshScrollBar( hwnd, nBar, repaint_arrows ); |
| |
| /* Return current position */ |
| |
| return infoPtr->CurVal; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollInfo16 (USER.476) |
| */ |
| BOOL16 WINAPI GetScrollInfo16( HWND16 hwnd, INT16 nBar, LPSCROLLINFO info ) |
| { |
| return GetScrollInfo32( hwnd, nBar, info ); |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollInfo32 (USER32.283) |
| */ |
| BOOL32 WINAPI GetScrollInfo32( HWND32 hwnd, INT32 nBar, LPSCROLLINFO info ) |
| { |
| 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 : 0; |
| 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)SetScrollPos32( hwnd, nBar, nPos, bRedraw ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollPos32 (USER32.502) |
| */ |
| INT32 WINAPI SetScrollPos32( HWND32 hwnd, INT32 nBar, INT32 nPos, |
| BOOL32 bRedraw ) |
| { |
| SCROLLINFO info; |
| SCROLLBAR_INFO *infoPtr; |
| INT32 oldPos; |
| |
| if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return 0; |
| oldPos = infoPtr->CurVal; |
| info.cbSize = sizeof(info); |
| info.nPos = nPos; |
| info.fMask = SIF_POS; |
| SetScrollInfo32( hwnd, nBar, &info, bRedraw ); |
| return oldPos; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollPos16 (USER.63) |
| */ |
| INT16 WINAPI GetScrollPos16( HWND16 hwnd, INT16 nBar ) |
| { |
| return (INT16)GetScrollPos32( hwnd, nBar ); |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollPos32 (USER32.284) |
| */ |
| INT32 WINAPI GetScrollPos32( HWND32 hwnd, INT32 nBar ) |
| { |
| 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 ((INT32)MaxVal - (INT32)MinVal > 0x7fff) MinVal = MaxVal = 0; |
| SetScrollRange32( hwnd, nBar, MinVal, MaxVal, bRedraw ); |
| } |
| |
| |
| /************************************************************************* |
| * SetScrollRange32 (USER32.503) |
| */ |
| BOOL32 WINAPI SetScrollRange32( HWND32 hwnd, INT32 nBar, |
| INT32 MinVal, INT32 MaxVal, BOOL32 bRedraw ) |
| { |
| SCROLLINFO info; |
| |
| info.cbSize = sizeof(info); |
| info.nMin = MinVal; |
| info.nMax = MaxVal; |
| info.fMask = SIF_RANGE; |
| SetScrollInfo32( hwnd, nBar, &info, bRedraw ); |
| return TRUE; |
| } |
| |
| |
| /************************************************************************* |
| * SCROLL_SetNCSbState |
| * |
| * This is for CalcChildScroll in windows/mdi.c |
| */ |
| DWORD SCROLL_SetNCSbState(WND* wndPtr, int vMin, int vMax, int vPos, |
| int hMin, int hMax, int hPos) |
| { |
| SCROLLBAR_INFO *infoPtr = SCROLL_GetPtrScrollInfo(wndPtr, SB_VERT); |
| |
| wndPtr->dwStyle |= (WS_VSCROLL | WS_HSCROLL); |
| |
| if( vMin >= vMax ) |
| { vMin = vMax; |
| wndPtr->dwStyle &= ~WS_VSCROLL; } |
| if( vPos > vMax ) vPos = vMax; else if( vPos < vMin ) vPos = vMin; |
| infoPtr->MinVal = vMin; |
| infoPtr->MaxVal = vMax; |
| infoPtr->CurVal = vPos; |
| |
| infoPtr = SCROLL_GetPtrScrollInfo(wndPtr, SB_HORZ); |
| |
| if( hMin >= hMax ) |
| { hMin = hMax; |
| wndPtr->dwStyle &= ~WS_HSCROLL; } |
| if( hPos > hMax ) hPos = hMax; else if( hPos < hMin ) hPos = hMin; |
| infoPtr->MinVal = hMin; |
| infoPtr->MaxVal = hMax; |
| infoPtr->CurVal = hPos; |
| |
| return wndPtr->dwStyle & (WS_VSCROLL | WS_HSCROLL); |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollRange16 (USER.65) |
| */ |
| BOOL16 WINAPI GetScrollRange16( HWND16 hwnd, INT16 nBar, |
| LPINT16 lpMin, LPINT16 lpMax) |
| { |
| INT32 min, max; |
| BOOL16 ret = GetScrollRange32( hwnd, nBar, &min, &max ); |
| if (lpMin) *lpMin = min; |
| if (lpMax) *lpMax = max; |
| return ret; |
| } |
| |
| |
| /************************************************************************* |
| * GetScrollRange32 (USER32.285) |
| */ |
| BOOL32 WINAPI GetScrollRange32( HWND32 hwnd, INT32 nBar, |
| LPINT32 lpMin, LPINT32 lpMax) |
| { |
| 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; |
| } |
| |
| |
| /************************************************************************* |
| * ShowScrollBar16 (USER.267) |
| */ |
| void WINAPI ShowScrollBar16( HWND16 hwnd, INT16 nBar, BOOL16 fShow ) |
| { |
| ShowScrollBar32( hwnd, nBar, fShow ); |
| } |
| |
| |
| /************************************************************************* |
| * ShowScrollBar32 (USER32.531) |
| */ |
| BOOL32 WINAPI ShowScrollBar32( HWND32 hwnd, INT32 nBar, BOOL32 fShow ) |
| { |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| |
| if (!wndPtr) return FALSE; |
| TRACE(scroll, "hwnd=%04x bar=%d on=%d\n", |
| hwnd, nBar, fShow ); |
| |
| switch(nBar) |
| { |
| case SB_CTL: |
| ShowWindow32( hwnd, fShow ? SW_SHOW : SW_HIDE ); |
| return TRUE; |
| |
| case SB_HORZ: |
| if (fShow) |
| { |
| if (wndPtr->dwStyle & WS_HSCROLL) return TRUE; |
| wndPtr->dwStyle |= WS_HSCROLL; |
| } |
| else /* hide it */ |
| { |
| if (!(wndPtr->dwStyle & WS_HSCROLL)) return TRUE; |
| wndPtr->dwStyle &= ~WS_HSCROLL; |
| } |
| break; |
| |
| case SB_VERT: |
| if (fShow) |
| { |
| if (wndPtr->dwStyle & WS_VSCROLL) return TRUE; |
| wndPtr->dwStyle |= WS_VSCROLL; |
| } |
| else /* hide it */ |
| { |
| if (!(wndPtr->dwStyle & WS_VSCROLL)) return TRUE; |
| wndPtr->dwStyle &= ~WS_VSCROLL; |
| } |
| break; |
| |
| case SB_BOTH: |
| if (fShow) |
| { |
| if ((wndPtr->dwStyle & WS_HSCROLL) |
| && (wndPtr->dwStyle & WS_VSCROLL)) return TRUE; |
| wndPtr->dwStyle |= WS_HSCROLL | WS_VSCROLL; |
| } |
| else /* hide it */ |
| { |
| if (!(wndPtr->dwStyle & WS_HSCROLL) |
| && !(wndPtr->dwStyle & WS_VSCROLL)) return TRUE; |
| wndPtr->dwStyle &= ~(WS_HSCROLL | WS_VSCROLL); |
| } |
| break; |
| |
| default: |
| return TRUE; /* Nothing to do! */ |
| } |
| SetWindowPos32( hwnd, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
| | SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED ); |
| return TRUE; |
| } |
| |
| |
| /************************************************************************* |
| * EnableScrollBar16 (USER.482) |
| */ |
| BOOL16 WINAPI EnableScrollBar16( HWND16 hwnd, INT16 nBar, UINT16 flags ) |
| { |
| return EnableScrollBar32( hwnd, nBar, flags ); |
| } |
| |
| |
| /************************************************************************* |
| * EnableScrollBar32 (USER32.170) |
| */ |
| BOOL32 WINAPI EnableScrollBar32( HWND32 hwnd, INT32 nBar, UINT32 flags ) |
| { |
| SCROLLBAR_INFO *infoPtr; |
| |
| if (!(infoPtr = SCROLL_GetScrollInfo( hwnd, nBar ))) return FALSE; |
| TRACE(scroll, "%04x %d %d\n", |
| hwnd, nBar, flags ); |
| flags &= ESB_DISABLE_BOTH; |
| if (infoPtr->flags == flags) return FALSE; |
| infoPtr->flags = flags; |
| |
| /* Redraw the whole scroll bar */ |
| SCROLL_RefreshScrollBar( hwnd, nBar, TRUE ); |
| return TRUE; |
| } |
