| /* | |
| * Scrollbar control | |
| * | |
| * Copyright 1993 Martin Ayotte | |
| * Copyright 1994, 1996 Alexandre Julliard | |
| * | |
| * This library is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * This library is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with this library; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| * | |
| * NOTES | |
| * | |
| * This code was audited for completeness against the documented features | |
| * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun. | |
| * | |
| * Unless otherwise noted, we believe this code to be complete, as per | |
| * the specification mentioned above. | |
| * If you discover missing features, or bugs, please note them below. | |
| * | |
| * TODO: | |
| * - GetScrollBarInfo | |
| * - SBM_GETSCROLLBARINFO | |
| * - SCROLLBARINFO | |
| */ | |
| #include <stdarg.h> | |
| #include "windef.h" | |
| #include "winbase.h" | |
| #include "wingdi.h" | |
| #include "wine/winuser16.h" | |
| #include "controls.h" | |
| #include "win.h" | |
| #include "wine/debug.h" | |
| #include "user.h" | |
| #include "message.h" | |
| WINE_DEFAULT_DEBUG_CHANNEL(scroll); | |
| typedef struct | |
| { | |
| INT curVal; /* Current scroll-bar value */ | |
| INT minVal; /* Minimum scroll-bar value */ | |
| INT maxVal; /* Maximum scroll-bar value */ | |
| INT page; /* Page size of scroll bar (Win32) */ | |
| UINT flags; /* EnableScrollBar flags */ | |
| } SCROLLBAR_INFO, *LPSCROLLBAR_INFO; | |
| /* 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 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, BOOL bRedraw ); | |
| static void SCROLL_DrawInterior_9x( HWND hwnd, HDC hdc, INT nBar, | |
| RECT *rect, INT arrowSize, | |
| INT thumbSize, INT thumbPos, | |
| UINT flags, BOOL vertical, | |
| BOOL top_selected, BOOL bottom_selected ); | |
| static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); | |
| /********************************************************************* | |
| * scrollbar class descriptor | |
| */ | |
| const struct builtin_class_descr SCROLL_builtin_class = | |
| { | |
| "ScrollBar", /* name */ | |
| CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */ | |
| NULL, /* procA (winproc is Unicode only) */ | |
| ScrollBarWndProc, /* procW */ | |
| sizeof(SCROLLBAR_INFO), /* extra */ | |
| IDC_ARROW, /* cursor */ | |
| 0 /* brush */ | |
| }; | |
| /*********************************************************************** | |
| * SCROLL_ScrollInfoValid | |
| * | |
| * Determine if the supplied SCROLLINFO struct is valid. | |
| */ | |
| inline static BOOL SCROLL_ScrollInfoValid( | |
| LPSCROLLINFO info /* [in] The SCROLLINFO struct to be tested */) | |
| { | |
| return !(info->fMask & ~(SIF_ALL | SIF_DISABLENOSCROLL) | |
| || (info->cbSize != sizeof(*info) | |
| && info->cbSize != sizeof(*info) - sizeof(info->nTrackPos))); | |
| } | |
| /*********************************************************************** | |
| * SCROLL_GetScrollBarInfo | |
| */ | |
| static SCROLLBAR_INFO *SCROLL_GetScrollBarInfo( HWND hwnd, INT nBar ) | |
| { | |
| SCROLLBAR_INFO *infoPtr; | |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); | |
| if (!wndPtr) return NULL; | |
| switch(nBar) | |
| { | |
| case SB_HORZ: infoPtr = (SCROLLBAR_INFO *)wndPtr->pHScroll; break; | |
| case SB_VERT: infoPtr = (SCROLLBAR_INFO *)wndPtr->pVScroll; break; | |
| case SB_CTL: infoPtr = (SCROLLBAR_INFO *)wndPtr->wExtra; break; | |
| default: | |
| WIN_ReleaseWndPtr( wndPtr ); | |
| return NULL; | |
| } | |
| if (!infoPtr) /* Create the info structure if needed */ | |
| { | |
| if ((infoPtr = HeapAlloc( GetProcessHeap(), 0, sizeof(SCROLLBAR_INFO) ))) | |
| { | |
| infoPtr->minVal = infoPtr->curVal = infoPtr->page = 0; | |
| infoPtr->maxVal = 100; | |
| infoPtr->flags = ESB_ENABLE_BOTH; | |
| if (nBar == SB_HORZ) wndPtr->pHScroll = infoPtr; | |
| else wndPtr->pVScroll = infoPtr; | |
| } | |
| } | |
| WIN_ReleaseWndPtr( wndPtr ); | |
| return infoPtr; | |
| } | |
| /*********************************************************************** | |
| * SCROLL_GetScrollBarRect | |
| * | |
| * Compute the scroll bar rectangle, in drawing coordinates (i.e. client | |
| * coords for SB_CTL, window coords for SB_VERT and SB_HORZ). | |
| * 'arrowSize' returns the width or height of an arrow (depending on | |
| * the orientation of the scrollbar), 'thumbSize' returns the size of | |
| * the thumb, and 'thumbPos' returns the position of the thumb | |
| * relative to the left or to the top. | |
| * Return TRUE if the scrollbar is vertical, FALSE if horizontal. | |
| */ | |
| static BOOL SCROLL_GetScrollBarRect( HWND hwnd, INT nBar, RECT *lprect, | |
| INT *arrowSize, INT *thumbSize, | |
| INT *thumbPos ) | |
| { | |
| INT pixels; | |
| BOOL vertical; | |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); | |
| switch(nBar) | |
| { | |
| case SB_HORZ: | |
| lprect->left = wndPtr->rectClient.left - wndPtr->rectWindow.left; | |
| lprect->top = wndPtr->rectClient.bottom - wndPtr->rectWindow.top; | |
| lprect->right = wndPtr->rectClient.right - wndPtr->rectWindow.left; | |
| lprect->bottom = lprect->top + GetSystemMetrics(SM_CYHSCROLL); | |
| if(wndPtr->dwStyle & WS_BORDER) { | |
| lprect->left--; | |
| lprect->right++; | |
| } else if(wndPtr->dwStyle & WS_VSCROLL) | |
| lprect->right++; | |
| vertical = FALSE; | |
| break; | |
| case SB_VERT: | |
| if((wndPtr->dwExStyle & WS_EX_LEFTSCROLLBAR) != 0) | |
| lprect->left = wndPtr->rectClient.left - wndPtr->rectWindow.left - GetSystemMetrics(SM_CXVSCROLL); | |
| else | |
| 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_GetScrollBarInfo( hwnd, nBar ); | |
| *arrowSize = GetSystemMetrics(SM_CXVSCROLL); | |
| pixels -= (2 * (GetSystemMetrics(SM_CXVSCROLL) - SCROLL_ARROW_THUMB_OVERLAP)); | |
| if (info->page) | |
| { | |
| *thumbSize = MulDiv(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 | |
| + MulDiv(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 = MulDiv(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( 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_DrawMovingThumb( 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; | |
| } | |
| /*********************************************************************** | |
| * 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)SendMessageW( GetParent(hwnd), WM_CTLCOLORSCROLLBAR, | |
| (WPARAM)hdc,(LPARAM)hwnd); | |
| } | |
| else | |
| { | |
| hBrush = DEFWND_ControlColor( hdc, CTLCOLOR_SCROLLBAR ); | |
| } | |
| hSavePen = SelectObject( hdc, SYSCOLOR_GetPen(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 */ | |
| /* 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)SendMessageW( GetParent(hwnd), WM_CTLCOLORSCROLLBAR, | |
| (WPARAM)hdc,(LPARAM)hwnd); | |
| } else { | |
| hBrush = DEFWND_ControlColor( hdc, CTLCOLOR_SCROLLBAR ); | |
| } | |
| hSavePen = SelectObject( hdc, SYSCOLOR_GetPen(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 */ | |
| /* 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 */ | |
| SelectObject( hdc, GetSysColorBrush(COLOR_BTNFACE) ); | |
| 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_GetScrollBarInfo( hwnd, nBar ); | |
| BOOL Save_SCROLL_MovingThumb = SCROLL_MovingThumb; | |
| if (!wndPtr || !infoPtr || | |
| ((nBar == SB_VERT) && !(wndPtr->dwStyle & WS_VSCROLL)) || | |
| ((nBar == SB_HORZ) && !(wndPtr->dwStyle & WS_HSCROLL))) goto END; | |
| if (!WIN_IsWindowDrawable( hwnd, FALSE )) goto END; | |
| hwnd = wndPtr->hwndSelf; /* make it a full handle */ | |
| vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, | |
| &arrowSize, &thumbSize, &thumbPos ); | |
| /* do not draw if the scrollbar rectangle is empty */ | |
| if(IsRectEmpty(&rect)) | |
| goto END; | |
| if (Save_SCROLL_MovingThumb && | |
| (SCROLL_TrackingWin == hwnd) && | |
| (SCROLL_TrackingBar == nBar)) | |
| SCROLL_DrawMovingThumb( hdc, &rect, vertical, arrowSize, thumbSize ); | |
| /* Draw the arrows */ | |
| if (arrows && arrowSize) | |
| { | |
| if( vertical == SCROLL_trackVertical && GetCapture() == hwnd ) | |
| SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, | |
| (SCROLL_trackHitTest == SCROLL_TOP_ARROW), | |
| (SCROLL_trackHitTest == SCROLL_BOTTOM_ARROW) ); | |
| else | |
| SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, | |
| FALSE, FALSE ); | |
| } | |
| if( interior ) | |
| SCROLL_DrawInterior( hwnd, hdc, nBar, &rect, arrowSize, thumbSize, | |
| thumbPos, infoPtr->flags, vertical, FALSE, FALSE ); | |
| if (Save_SCROLL_MovingThumb && | |
| (SCROLL_TrackingWin == hwnd) && | |
| (SCROLL_TrackingBar == nBar)) | |
| SCROLL_DrawMovingThumb( hdc, &rect, vertical, arrowSize, thumbSize ); | |
| /* if scroll bar has focus, reposition the caret */ | |
| if(hwnd==GetFocus() && (nBar==SB_CTL)) | |
| { | |
| if (!vertical) | |
| { | |
| SetCaretPos(thumbPos+1, rect.top+1); | |
| } | |
| else | |
| { | |
| SetCaretPos(rect.top+1, thumbPos+1); | |
| } | |
| } | |
| END: | |
| WIN_ReleaseWndPtr(wndPtr); | |
| } | |
| /*********************************************************************** | |
| * SCROLL_DrawSizeGrip | |
| * | |
| * Draw the size grip. | |
| */ | |
| static void SCROLL_DrawSizeGrip( HWND hwnd, HDC hdc) | |
| { | |
| RECT rc; | |
| GetClientRect( hwnd, &rc ); | |
| FillRect( hdc, &rc, GetSysColorBrush(COLOR_SCROLLBAR) ); | |
| rc.left = max( rc.left, rc.right - GetSystemMetrics(SM_CXVSCROLL) - 1 ); | |
| rc.top = max( rc.top, rc.bottom - GetSystemMetrics(SM_CYHSCROLL) - 1 ); | |
| DrawFrameControl( hdc, &rc, DFC_SCROLL, DFCS_SCROLLSIZEGRIP ); | |
| } | |
| /*********************************************************************** | |
| * 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 with focus). | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * wParam [I] Variable input including enable state | |
| * lParam [I] Variable input including input point | |
| */ | |
| static void SCROLL_HandleKbdEvent(HWND hwnd, WPARAM wParam, LPARAM lParam) | |
| { | |
| TRACE("hwnd=%p wParam=%d lParam=%ld\n", hwnd, wParam, lParam); | |
| /* hide caret on first KEYDOWN to prevent flicker */ | |
| if ((lParam & PFD_DOUBLEBUFFER_DONTCARE) == 0) | |
| HideCaret(hwnd); | |
| switch(wParam) | |
| { | |
| case VK_PRIOR: wParam = SB_PAGEUP; break; | |
| case VK_NEXT: wParam = SB_PAGEDOWN; break; | |
| case VK_HOME: wParam = SB_TOP; break; | |
| case VK_END: wParam = SB_BOTTOM; break; | |
| case VK_UP: wParam = SB_LINEUP; break; | |
| case VK_DOWN: wParam = SB_LINEDOWN; break; | |
| default: return; | |
| } | |
| SendMessageW(GetParent(hwnd), | |
| ((GetWindowLongW( hwnd, GWL_STYLE ) & SBS_VERT) ? | |
| WM_VSCROLL : WM_HSCROLL), wParam, (LPARAM)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. | |
| */ | |
| static 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_GetScrollBarInfo( hwnd, nBar ); | |
| if (!infoPtr) return; | |
| if ((SCROLL_trackHitTest == SCROLL_NOWHERE) && (msg != WM_LBUTTONDOWN)) | |
| return; | |
| if (nBar == SB_CTL && (GetWindowLongW( hwnd, GWL_STYLE ) & (SBS_SIZEGRIP | SBS_SIZEBOX))) | |
| { | |
| switch(msg) | |
| { | |
| case WM_LBUTTONDOWN: /* Initialise mouse tracking */ | |
| HideCaret(hwnd); /* hide caret while holding down LBUTTON */ | |
| SetCapture( hwnd ); | |
| prevPt = pt; | |
| SCROLL_trackHitTest = hittest = SCROLL_THUMB; | |
| break; | |
| case WM_MOUSEMOVE: | |
| GetClientRect(GetParent(GetParent(hwnd)),&rect); | |
| prevPt = pt; | |
| break; | |
| case WM_LBUTTONUP: | |
| ReleaseCapture(); | |
| SCROLL_trackHitTest = hittest = SCROLL_NOWHERE; | |
| if (hwnd==GetFocus()) ShowCaret(hwnd); | |
| break; | |
| case WM_SYSTIMER: | |
| pt = prevPt; | |
| break; | |
| } | |
| return; | |
| } | |
| hdc = GetDCEx( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW)); | |
| vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect, | |
| &arrowSize, &thumbSize, &thumbPos ); | |
| hwndOwner = (nBar == SB_CTL) ? GetParent(hwnd) : hwnd; | |
| hwndCtl = (nBar == SB_CTL) ? hwnd : 0; | |
| switch(msg) | |
| { | |
| case WM_LBUTTONDOWN: /* Initialise mouse tracking */ | |
| HideCaret(hwnd); /* hide caret while holding down LBUTTON */ | |
| SCROLL_trackVertical = vertical; | |
| SCROLL_trackHitTest = hittest = SCROLL_HitTest( hwnd, nBar, pt, FALSE ); | |
| lastClickPos = vertical ? (pt.y - rect.top) : (pt.x - rect.left); | |
| lastMousePos = lastClickPos; | |
| trackThumbPos = thumbPos; | |
| prevPt = pt; | |
| if (nBar == SB_CTL && (GetWindowLongW(hwnd, GWL_STYLE) & WS_TABSTOP)) SetFocus( hwnd ); | |
| SetCapture( hwnd ); | |
| break; | |
| case WM_MOUSEMOVE: | |
| hittest = SCROLL_HitTest( hwnd, nBar, pt, TRUE ); | |
| prevPt = pt; | |
| break; | |
| case WM_LBUTTONUP: | |
| hittest = SCROLL_NOWHERE; | |
| ReleaseCapture(); | |
| /* if scrollbar has focus, show back caret */ | |
| if (hwnd==GetFocus()) ShowCaret(hwnd); | |
| break; | |
| case WM_SYSTIMER: | |
| pt = prevPt; | |
| hittest = SCROLL_HitTest( hwnd, nBar, pt, FALSE ); | |
| break; | |
| default: | |
| return; /* Should never happen */ | |
| } | |
| TRACE("Event: hwnd=%p bar=%d msg=%s pt=%ld,%ld hit=%d\n", | |
| hwnd, nBar, SPY_GetMsgName(msg,hwnd), 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)) | |
| { | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| SB_LINEUP, (LPARAM)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)) | |
| { | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| SB_PAGEUP, (LPARAM)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; | |
| SCROLL_TrackingVal = SCROLL_GetThumbVal( infoPtr, &rect, | |
| vertical, | |
| SCROLL_TrackingPos ); | |
| 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 ); | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| MAKEWPARAM( SB_THUMBTRACK, SCROLL_TrackingVal), | |
| (LPARAM)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)) | |
| { | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| SB_PAGEDOWN, (LPARAM)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)) | |
| { | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| SB_LINEDOWN, (LPARAM)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_LBUTTONDOWN) | |
| { | |
| if (hittest == SCROLL_THUMB) | |
| { | |
| UINT val = SCROLL_GetThumbVal( infoPtr, &rect, vertical, | |
| trackThumbPos + lastMousePos - lastClickPos ); | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| MAKEWPARAM( SB_THUMBTRACK, val ), (LPARAM)hwndCtl ); | |
| } | |
| } | |
| 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 ); | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| MAKEWPARAM( SB_THUMBPOSITION, val ), (LPARAM)hwndCtl ); | |
| } | |
| SendMessageW( hwndOwner, vertical ? WM_VSCROLL : WM_HSCROLL, | |
| SB_ENDSCROLL, (LPARAM)hwndCtl ); | |
| } | |
| ReleaseDC( hwnd, hdc ); | |
| } | |
| /*********************************************************************** | |
| * SCROLL_TrackScrollBar | |
| * | |
| * Track a mouse button press on a scroll-bar. | |
| * pt is in screen-coordinates for non-client scroll bars. | |
| */ | |
| void SCROLL_TrackScrollBar( HWND hwnd, INT scrollbar, POINT pt ) | |
| { | |
| MSG msg; | |
| INT xoffset = 0, yoffset = 0; | |
| if (scrollbar != SB_CTL) | |
| { | |
| WND *wndPtr = WIN_GetPtr( hwnd ); | |
| if (!wndPtr || wndPtr == WND_OTHER_PROCESS) return; | |
| xoffset = wndPtr->rectClient.left - wndPtr->rectWindow.left; | |
| yoffset = wndPtr->rectClient.top - wndPtr->rectWindow.top; | |
| WIN_ReleasePtr( wndPtr ); | |
| ScreenToClient( hwnd, &pt ); | |
| pt.x += xoffset; | |
| pt.y += yoffset; | |
| } | |
| SCROLL_HandleScrollEvent( hwnd, scrollbar, WM_LBUTTONDOWN, pt ); | |
| do | |
| { | |
| if (!GetMessageW( &msg, 0, 0, 0 )) break; | |
| if (CallMsgFilterW( &msg, MSGF_SCROLLBAR )) continue; | |
| switch(msg.message) | |
| { | |
| case WM_LBUTTONUP: | |
| case WM_MOUSEMOVE: | |
| case WM_SYSTIMER: | |
| pt.x = (short)LOWORD(msg.lParam) + xoffset; | |
| pt.y = (short)HIWORD(msg.lParam) + yoffset; | |
| SCROLL_HandleScrollEvent( hwnd, scrollbar, msg.message, pt ); | |
| break; | |
| default: | |
| TranslateMessage( &msg ); | |
| DispatchMessageW( &msg ); | |
| break; | |
| } | |
| if (!IsWindow( hwnd )) | |
| { | |
| ReleaseCapture(); | |
| break; | |
| } | |
| } while (msg.message != WM_LBUTTONUP); | |
| } | |
| /*********************************************************************** | |
| * SCROLL_CreateScrollBar | |
| * | |
| * Create a scroll bar | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * lpCreate [I] The style and place of the scroll bar | |
| */ | |
| static void SCROLL_CreateScrollBar(HWND hwnd, LPCREATESTRUCTW lpCreate) | |
| { | |
| LPSCROLLBAR_INFO info = SCROLL_GetScrollBarInfo(hwnd, SB_CTL); | |
| if (!info) return; | |
| TRACE("hwnd=%p lpCreate=%p\n", hwnd, lpCreate); | |
| if (lpCreate->style & WS_DISABLED) | |
| { | |
| info->flags = ESB_DISABLE_BOTH; | |
| TRACE("Created WS_DISABLED scrollbar\n"); | |
| } | |
| if (lpCreate->style & (SBS_SIZEGRIP | SBS_SIZEBOX)) | |
| { | |
| if (lpCreate->style & SBS_SIZEBOXTOPLEFTALIGN) | |
| MoveWindow( hwnd, lpCreate->x, lpCreate->y, GetSystemMetrics(SM_CXVSCROLL)+1, | |
| GetSystemMetrics(SM_CYHSCROLL)+1, FALSE ); | |
| else if(lpCreate->style & SBS_SIZEBOXBOTTOMRIGHTALIGN) | |
| MoveWindow( hwnd, lpCreate->x+lpCreate->cx-GetSystemMetrics(SM_CXVSCROLL)-1, | |
| lpCreate->y+lpCreate->cy-GetSystemMetrics(SM_CYHSCROLL)-1, | |
| GetSystemMetrics(SM_CXVSCROLL)+1, | |
| GetSystemMetrics(SM_CYHSCROLL)+1, FALSE ); | |
| } | |
| else if (lpCreate->style & SBS_VERT) | |
| { | |
| if (lpCreate->style & SBS_LEFTALIGN) | |
| MoveWindow( hwnd, lpCreate->x, lpCreate->y, | |
| GetSystemMetrics(SM_CXVSCROLL)+1, lpCreate->cy, FALSE ); | |
| else if (lpCreate->style & SBS_RIGHTALIGN) | |
| MoveWindow( hwnd, | |
| lpCreate->x+lpCreate->cx-GetSystemMetrics(SM_CXVSCROLL)-1, | |
| lpCreate->y, | |
| GetSystemMetrics(SM_CXVSCROLL)+1, lpCreate->cy, FALSE ); | |
| } | |
| else /* SBS_HORZ */ | |
| { | |
| if (lpCreate->style & SBS_TOPALIGN) | |
| MoveWindow( hwnd, lpCreate->x, lpCreate->y, | |
| lpCreate->cx, GetSystemMetrics(SM_CYHSCROLL)+1, FALSE ); | |
| else if (lpCreate->style & SBS_BOTTOMALIGN) | |
| MoveWindow( hwnd, | |
| lpCreate->x, | |
| lpCreate->y+lpCreate->cy-GetSystemMetrics(SM_CYHSCROLL)-1, | |
| lpCreate->cx, GetSystemMetrics(SM_CYHSCROLL)+1, FALSE ); | |
| } | |
| } | |
| /************************************************************************* | |
| * SCROLL_GetScrollInfo | |
| * | |
| * Internal helper for the API function | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * info [IO] fMask specifies which values to retrieve | |
| */ | |
| static BOOL SCROLL_GetScrollInfo(HWND hwnd, INT nBar, LPSCROLLINFO info) | |
| { | |
| LPSCROLLBAR_INFO infoPtr; | |
| /* handle invalid data structure */ | |
| if (!SCROLL_ScrollInfoValid(info) | |
| || !(infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar))) | |
| return FALSE; | |
| /* fill in the desired scroll info structure */ | |
| if (info->fMask & SIF_PAGE) info->nPage = infoPtr->page; | |
| if (info->fMask & SIF_POS) info->nPos = infoPtr->curVal; | |
| if ((info->fMask & SIF_TRACKPOS) && (info->cbSize == sizeof(*info))) | |
| info->nTrackPos = (SCROLL_TrackingWin == WIN_GetFullHandle(hwnd)) ? SCROLL_TrackingVal : infoPtr->curVal; | |
| if (info->fMask & SIF_RANGE) | |
| { | |
| info->nMin = infoPtr->minVal; | |
| info->nMax = infoPtr->maxVal; | |
| } | |
| return (info->fMask & SIF_ALL) != 0; | |
| } | |
| /************************************************************************* | |
| * SCROLL_GetScrollPos | |
| * | |
| * Internal helper for the API function | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| */ | |
| static INT SCROLL_GetScrollPos(HWND hwnd, INT nBar) | |
| { | |
| LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar); | |
| return infoPtr ? infoPtr->curVal: 0; | |
| } | |
| /************************************************************************* | |
| * SCROLL_GetScrollRange | |
| * | |
| * Internal helper for the API function | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * lpMin [O] Where to store minimum value | |
| * lpMax [O] Where to store maximum value | |
| * | |
| * RETURNS STD | |
| */ | |
| static BOOL SCROLL_GetScrollRange(HWND hwnd, INT nBar, LPINT lpMin, LPINT lpMax) | |
| { | |
| LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar); | |
| if (lpMin) *lpMin = infoPtr ? infoPtr->minVal : 0; | |
| if (lpMax) *lpMax = infoPtr ? infoPtr->maxVal : 0; | |
| return TRUE; | |
| } | |
| /************************************************************************* | |
| * SCROLL_SetScrollRange | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * lpMin [I] Minimum value | |
| * lpMax [I] Maximum value | |
| * | |
| */ | |
| static BOOL SCROLL_SetScrollRange(HWND hwnd, INT nBar, INT minVal, INT maxVal) | |
| { | |
| LPSCROLLBAR_INFO infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar); | |
| TRACE("hwnd=%p nBar=%d min=%d max=%d\n", hwnd, nBar, minVal, maxVal); | |
| if (infoPtr) | |
| { | |
| infoPtr->minVal = minVal; | |
| infoPtr->maxVal = maxVal; | |
| } | |
| return TRUE; | |
| } | |
| /*********************************************************************** | |
| * ScrollBarWndProc | |
| */ | |
| static LRESULT WINAPI ScrollBarWndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) | |
| { | |
| if (!IsWindow( hwnd )) return 0; | |
| switch(message) | |
| { | |
| case WM_CREATE: | |
| SCROLL_CreateScrollBar(hwnd, (LPCREATESTRUCTW)lParam); | |
| break; | |
| case WM_ENABLE: | |
| { | |
| SCROLLBAR_INFO *infoPtr; | |
| if ((infoPtr = SCROLL_GetScrollBarInfo( hwnd, SB_CTL ))) | |
| { | |
| infoPtr->flags = wParam ? ESB_ENABLE_BOTH : ESB_DISABLE_BOTH; | |
| SCROLL_RefreshScrollBar(hwnd, SB_CTL, TRUE, TRUE); | |
| } | |
| } | |
| return 0; | |
| case WM_LBUTTONDBLCLK: | |
| case WM_LBUTTONDOWN: | |
| { | |
| POINT pt; | |
| pt.x = (short)LOWORD(lParam); | |
| pt.y = (short)HIWORD(lParam); | |
| SCROLL_TrackScrollBar( hwnd, SB_CTL, pt ); | |
| } | |
| break; | |
| case WM_LBUTTONUP: | |
| case WM_MOUSEMOVE: | |
| case WM_SYSTIMER: | |
| { | |
| POINT pt; | |
| pt.x = (short)LOWORD(lParam); | |
| pt.y = (short)HIWORD(lParam); | |
| SCROLL_HandleScrollEvent( hwnd, SB_CTL, message, pt ); | |
| } | |
| break; | |
| case WM_KEYDOWN: | |
| SCROLL_HandleKbdEvent(hwnd, wParam, lParam); | |
| break; | |
| case WM_KEYUP: | |
| ShowCaret(hwnd); | |
| break; | |
| case WM_SETFOCUS: | |
| { | |
| /* Create a caret when a ScrollBar get focus */ | |
| RECT rect; | |
| int arrowSize, thumbSize, thumbPos, vertical; | |
| vertical = SCROLL_GetScrollBarRect( hwnd, SB_CTL, &rect, | |
| &arrowSize, &thumbSize, &thumbPos ); | |
| if (!vertical) | |
| { | |
| CreateCaret(hwnd, (HBITMAP)1, thumbSize-2, rect.bottom-rect.top-2); | |
| SetCaretPos(thumbPos+1, rect.top+1); | |
| } | |
| else | |
| { | |
| CreateCaret(hwnd, (HBITMAP)1, rect.right-rect.left-2,thumbSize-2); | |
| SetCaretPos(rect.top+1, thumbPos+1); | |
| } | |
| ShowCaret(hwnd); | |
| } | |
| break; | |
| case WM_KILLFOCUS: | |
| { | |
| RECT rect; | |
| int arrowSize, thumbSize, thumbPos, vertical; | |
| vertical = SCROLL_GetScrollBarRect( hwnd, SB_CTL, &rect,&arrowSize, &thumbSize, &thumbPos ); | |
| if (!vertical){ | |
| rect.left=thumbPos+1; | |
| rect.right=rect.left+thumbSize; | |
| } | |
| else | |
| { | |
| rect.top=thumbPos+1; | |
| rect.bottom=rect.top+thumbSize; | |
| } | |
| HideCaret(hwnd); | |
| InvalidateRect(hwnd,&rect,0); | |
| DestroyCaret(); | |
| } | |
| break; | |
| case WM_ERASEBKGND: | |
| return 1; | |
| case WM_GETDLGCODE: | |
| return DLGC_WANTARROWS; /* Windows returns this value */ | |
| case WM_PAINT: | |
| { | |
| PAINTSTRUCT ps; | |
| HDC hdc = wParam ? (HDC)wParam : BeginPaint(hwnd, &ps); | |
| if (GetWindowLongW( hwnd, GWL_STYLE ) & SBS_SIZEGRIP) | |
| { | |
| SCROLL_DrawSizeGrip( hwnd, hdc); | |
| } | |
| else if (GetWindowLongW( hwnd, GWL_STYLE ) & SBS_SIZEBOX) | |
| { | |
| RECT rc; | |
| GetClientRect( hwnd, &rc ); | |
| FillRect( hdc, &rc, GetSysColorBrush(COLOR_SCROLLBAR) ); | |
| } | |
| else | |
| SCROLL_DrawScrollBar( hwnd, hdc, SB_CTL, TRUE, TRUE ); | |
| if (!wParam) 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 SCROLL_GetScrollPos(hwnd, SB_CTL); | |
| case SBM_SETRANGE16: | |
| if (wParam) message = SBM_SETRANGEREDRAW; | |
| wParam = LOWORD(lParam); | |
| lParam = HIWORD(lParam); | |
| /* fall through */ | |
| case SBM_SETRANGEREDRAW: | |
| case SBM_SETRANGE: | |
| { | |
| INT oldPos = SCROLL_GetScrollPos( hwnd, SB_CTL ); | |
| SCROLL_SetScrollRange( hwnd, SB_CTL, wParam, lParam ); | |
| if (message == SBM_SETRANGEREDRAW) | |
| SCROLL_RefreshScrollBar( hwnd, SB_CTL, TRUE, TRUE ); | |
| if (oldPos != SCROLL_GetScrollPos( hwnd, SB_CTL )) return oldPos; | |
| } | |
| return 0; | |
| case SBM_GETRANGE16: | |
| { | |
| INT min, max; | |
| SCROLL_GetScrollRange(hwnd, SB_CTL, &min, &max); | |
| return MAKELRESULT(min, max); | |
| } | |
| case SBM_GETRANGE: | |
| return SCROLL_GetScrollRange(hwnd, SB_CTL, (LPINT)wParam, (LPINT)lParam); | |
| case SBM_ENABLE_ARROWS16: | |
| case SBM_ENABLE_ARROWS: | |
| return EnableScrollBar( hwnd, SB_CTL, wParam ); | |
| case SBM_SETSCROLLINFO: | |
| return SCROLL_SetScrollInfo( hwnd, SB_CTL, (SCROLLINFO *)lParam, wParam ); | |
| case SBM_GETSCROLLINFO: | |
| return SCROLL_GetScrollInfo(hwnd, SB_CTL, (SCROLLINFO *)lParam); | |
| case 0x00e5: | |
| case 0x00e7: | |
| case 0x00e8: | |
| case 0x00eb: | |
| case 0x00ec: | |
| case 0x00ed: | |
| case 0x00ee: | |
| case 0x00ef: | |
| ERR("unknown Win32 msg %04x wp=%08x lp=%08lx\n", | |
| message, wParam, lParam ); | |
| break; | |
| default: | |
| if (message >= WM_USER) | |
| WARN("unknown msg %04x wp=%04x lp=%08lx\n", | |
| message, wParam, lParam ); | |
| return DefWindowProcW( hwnd, message, wParam, lParam ); | |
| } | |
| return 0; | |
| } | |
| /************************************************************************* | |
| * SetScrollInfo (USER32.@) | |
| * SetScrollInfo can be used to set the position, upper bound, | |
| * lower bound, and page size of a scrollbar control. | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * info [I] Specifies what to change and new values | |
| * bRedraw [I] Should scrollbar be redrawn afterwards? | |
| * | |
| * 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, INT nBar, const SCROLLINFO *info, BOOL bRedraw) | |
| { | |
| TRACE("hwnd=%p nBar=%d info=%p, bRedraw=%d\n", hwnd, nBar, info, bRedraw); | |
| /* Refer SB_CTL requests to the window */ | |
| if (nBar == SB_CTL) | |
| return SendMessageW(hwnd, SBM_SETSCROLLINFO, bRedraw, (LPARAM)info); | |
| else | |
| return SCROLL_SetScrollInfo( hwnd, nBar, info, bRedraw ); | |
| } | |
| static INT SCROLL_SetScrollInfo( HWND hwnd, INT nBar, const SCROLLINFO *info, BOOL bRedraw ) | |
| { | |
| /* Update the scrollbar state and set action flags according to | |
| * what has to be done graphics wise. */ | |
| SCROLLBAR_INFO *infoPtr; | |
| UINT new_flags; | |
| BOOL bChangeParams = FALSE; /* don't show/hide scrollbar if params don't change */ | |
| INT action = 0; | |
| if (!(infoPtr = SCROLL_GetScrollBarInfo(hwnd, nBar))) return 0; | |
| if (info->fMask & ~(SIF_ALL | SIF_DISABLENOSCROLL)) return 0; | |
| if ((info->cbSize != sizeof(*info)) && | |
| (info->cbSize != sizeof(*info)-sizeof(info->nTrackPos))) return 0; | |
| if (TRACE_ON(scroll)) | |
| { | |
| TRACE("hwnd=%p bar=%d", hwnd, nBar); | |
| if (info->fMask & SIF_PAGE) TRACE( " page=%d", info->nPage ); | |
| if (info->fMask & SIF_POS) TRACE( " pos=%d", info->nPos ); | |
| if (info->fMask & SIF_RANGE) TRACE( " min=%d max=%d", info->nMin, info->nMax ); | |
| TRACE("\n"); | |
| } | |
| /* Set the page size */ | |
| if (info->fMask & SIF_PAGE) | |
| { | |
| if( infoPtr->page != info->nPage ) | |
| { | |
| infoPtr->page = info->nPage; | |
| action |= SA_SSI_REFRESH; | |
| bChangeParams = TRUE; | |
| } | |
| } | |
| /* Set the scroll pos */ | |
| if (info->fMask & SIF_POS) | |
| { | |
| if( infoPtr->curVal != info->nPos ) | |
| { | |
| infoPtr->curVal = info->nPos; | |
| action |= SA_SSI_REFRESH; | |
| } | |
| } | |
| /* Set the scroll range */ | |
| if (info->fMask & SIF_RANGE) | |
| { | |
| /* Invalid range -> range is set to (0,0) */ | |
| if ((info->nMin > info->nMax) || | |
| ((UINT)(info->nMax - info->nMin) >= 0x80000000)) | |
| { | |
| infoPtr->minVal = 0; | |
| infoPtr->maxVal = 0; | |
| bChangeParams = TRUE; | |
| } | |
| else | |
| { | |
| if( infoPtr->minVal != info->nMin || | |
| infoPtr->maxVal != info->nMax ) | |
| { | |
| action |= SA_SSI_REFRESH; | |
| infoPtr->minVal = info->nMin; | |
| infoPtr->maxVal = info->nMax; | |
| bChangeParams = TRUE; | |
| } | |
| } | |
| } | |
| /* Make sure the page size is valid */ | |
| if (infoPtr->page < 0) infoPtr->page = 0; | |
| else if (infoPtr->page > infoPtr->maxVal - infoPtr->minVal + 1 ) | |
| infoPtr->page = infoPtr->maxVal - infoPtr->minVal + 1; | |
| /* Make sure the pos is inside the range */ | |
| if (infoPtr->curVal < infoPtr->minVal) | |
| infoPtr->curVal = infoPtr->minVal; | |
| else if (infoPtr->curVal > infoPtr->maxVal - max( infoPtr->page-1, 0 )) | |
| infoPtr->curVal = infoPtr->maxVal - max( infoPtr->page-1, 0 ); | |
| TRACE(" new values: page=%d pos=%d min=%d max=%d\n", | |
| infoPtr->page, infoPtr->curVal, | |
| infoPtr->minVal, infoPtr->maxVal ); | |
| /* don't change the scrollbar state if SetScrollInfo | |
| * is just called with SIF_DISABLENOSCROLL | |
| */ | |
| if(!(info->fMask & SIF_ALL)) goto done; | |
| /* Check if the scrollbar should be hidden or disabled */ | |
| if (info->fMask & (SIF_RANGE | SIF_PAGE | SIF_DISABLENOSCROLL)) | |
| { | |
| new_flags = infoPtr->flags; | |
| if (infoPtr->minVal >= infoPtr->maxVal - max( infoPtr->page-1, 0 )) | |
| { | |
| /* Hide or disable scroll-bar */ | |
| if (info->fMask & SIF_DISABLENOSCROLL) | |
| { | |
| new_flags = ESB_DISABLE_BOTH; | |
| action |= SA_SSI_REFRESH; | |
| } | |
| else if ((nBar != SB_CTL) && bChangeParams) | |
| { | |
| action = SA_SSI_HIDE; | |
| goto done; | |
| } | |
| } | |
| else /* Show and enable scroll-bar */ | |
| { | |
| new_flags = 0; | |
| if ((nBar != SB_CTL) && bChangeParams) | |
| action |= SA_SSI_SHOW; | |
| } | |
| if (infoPtr->flags != new_flags) /* check arrow flags */ | |
| { | |
| infoPtr->flags = new_flags; | |
| action |= SA_SSI_REPAINT_ARROWS; | |
| } | |
| } | |
| done: | |
| 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 infoPtr->curVal; /* SetWindowPos() already did the painting */ | |
| if( bRedraw ) | |
| SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, TRUE ); | |
| else if( action & SA_SSI_REPAINT_ARROWS ) | |
| SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, FALSE ); | |
| } | |
| /* Return current position */ | |
| return infoPtr->curVal; | |
| } | |
| /************************************************************************* | |
| * GetScrollInfo (USER32.@) | |
| * | |
| * GetScrollInfo can be used to retrieve the position, upper bound, | |
| * lower bound, and page size of a scrollbar control. | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * info [IO] fMask specifies which values to retrieve | |
| * | |
| * RETURNS STD | |
| */ | |
| BOOL WINAPI GetScrollInfo(HWND hwnd, INT nBar, LPSCROLLINFO info) | |
| { | |
| TRACE("hwnd=%p nBar=%d info=%p\n", hwnd, nBar, info); | |
| /* Refer SB_CTL requests to the window */ | |
| if (nBar == SB_CTL) | |
| SendMessageW(hwnd, SBM_GETSCROLLINFO, (WPARAM)0, (LPARAM)info); | |
| else | |
| SCROLL_GetScrollInfo(hwnd, nBar, info); | |
| return TRUE; | |
| } | |
| /************************************************************************* | |
| * SetScrollPos (USER32.@) | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * nPos [I] New value | |
| * bRedraw [I] Should scrollbar be redrawn afterwards? | |
| * | |
| * 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, INT nBar, INT nPos, BOOL bRedraw) | |
| { | |
| SCROLLINFO info; | |
| SCROLLBAR_INFO *infoPtr; | |
| INT oldPos; | |
| if (!(infoPtr = SCROLL_GetScrollBarInfo( hwnd, nBar ))) return 0; | |
| oldPos = infoPtr->curVal; | |
| info.cbSize = sizeof(info); | |
| info.nPos = nPos; | |
| info.fMask = SIF_POS; | |
| SetScrollInfo( hwnd, nBar, &info, bRedraw ); | |
| return oldPos; | |
| } | |
| /************************************************************************* | |
| * GetScrollPos (USER32.@) | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * | |
| * RETURNS | |
| * Success: Current position | |
| * Failure: 0 | |
| * | |
| * REMARKS | |
| * There is ambiguity when 0 is returned. Use GetLastError | |
| * to make sure there was an error (and to know which one). | |
| */ | |
| INT WINAPI GetScrollPos(HWND hwnd, INT nBar) | |
| { | |
| TRACE("hwnd=%p nBar=%d\n", hwnd, nBar); | |
| /* Refer SB_CTL requests to the window */ | |
| if (nBar == SB_CTL) | |
| return SendMessageW(hwnd, SBM_GETPOS, (WPARAM)0, (LPARAM)0); | |
| else | |
| return SCROLL_GetScrollPos(hwnd, nBar); | |
| } | |
| /************************************************************************* | |
| * SetScrollRange (USER32.@) | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * minVal [I] New minimum value | |
| * maxVal [I] New Maximum value | |
| * bRedraw [I] Should scrollbar be redrawn afterwards? | |
| * | |
| * RETURNS STD | |
| */ | |
| BOOL WINAPI SetScrollRange(HWND hwnd, INT nBar, INT minVal, INT maxVal, BOOL bRedraw) | |
| { | |
| SCROLLINFO info; | |
| TRACE("hwnd=%p nBar=%d min=%d max=%d, bRedraw=%d\n", hwnd, nBar, minVal, maxVal, bRedraw); | |
| info.cbSize = sizeof(info); | |
| info.fMask = SIF_RANGE; | |
| info.nMin = minVal; | |
| info.nMax = maxVal; | |
| SetScrollInfo( hwnd, nBar, &info, bRedraw ); | |
| return TRUE; | |
| } | |
| /************************************************************************* | |
| * SCROLL_SetNCSbState | |
| * | |
| * Updates both scrollbars at the same time. Used by MDI CalcChildScroll(). | |
| */ | |
| INT SCROLL_SetNCSbState(HWND hwnd, int vMin, int vMax, int vPos, | |
| int hMin, int hMax, int hPos) | |
| { | |
| SCROLLINFO vInfo, hInfo; | |
| vInfo.cbSize = hInfo.cbSize = sizeof(SCROLLINFO); | |
| vInfo.nMin = vMin; | |
| vInfo.nMax = vMax; | |
| vInfo.nPos = vPos; | |
| hInfo.nMin = hMin; | |
| hInfo.nMax = hMax; | |
| hInfo.nPos = hPos; | |
| vInfo.fMask = hInfo.fMask = SIF_RANGE | SIF_POS; | |
| SCROLL_SetScrollInfo( hwnd, SB_VERT, &vInfo, TRUE ); | |
| SCROLL_SetScrollInfo( hwnd, SB_HORZ, &hInfo, TRUE ); | |
| return 0; | |
| } | |
| /************************************************************************* | |
| * GetScrollRange (USER32.@) | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * lpMin [O] Where to store minimum value | |
| * lpMax [O] Where to store maximum value | |
| * | |
| * RETURNS STD | |
| */ | |
| BOOL WINAPI GetScrollRange(HWND hwnd, INT nBar, LPINT lpMin, LPINT lpMax) | |
| { | |
| TRACE("hwnd=%p nBar=%d lpMin=%p lpMax=%p\n", hwnd, nBar, lpMin, lpMax); | |
| /* Refer SB_CTL requests to the window */ | |
| if (nBar == SB_CTL) | |
| SendMessageW(hwnd, SBM_GETRANGE, (WPARAM)lpMin, (LPARAM)lpMax); | |
| else | |
| SCROLL_GetScrollRange(hwnd, nBar, lpMin, lpMax); | |
| return TRUE; | |
| } | |
| /************************************************************************* | |
| * SCROLL_ShowScrollBar() | |
| * | |
| * Back-end for ShowScrollBar(). Returns FALSE if no action was taken. | |
| */ | |
| BOOL SCROLL_ShowScrollBar( HWND hwnd, INT nBar, | |
| BOOL fShowH, BOOL fShowV ) | |
| { | |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); | |
| TRACE("hwnd=%p bar=%d horz=%d, vert=%d\n", hwnd, nBar, fShowH, fShowV ); | |
| switch(nBar) | |
| { | |
| case SB_CTL: | |
| ShowWindow( hwnd, fShowH ? SW_SHOW : SW_HIDE ); | |
| return TRUE; | |
| case SB_BOTH: | |
| case SB_HORZ: | |
| if (fShowH) | |
| { | |
| fShowH = !(style & WS_HSCROLL); | |
| style |= WS_HSCROLL; | |
| } | |
| else /* hide it */ | |
| { | |
| fShowH = (style & WS_HSCROLL); | |
| style &= ~WS_HSCROLL; | |
| } | |
| if( nBar == SB_HORZ ) { | |
| fShowV = FALSE; | |
| break; | |
| } | |
| /* fall through */ | |
| case SB_VERT: | |
| if (fShowV) | |
| { | |
| fShowV = !(style & WS_VSCROLL); | |
| style |= WS_VSCROLL; | |
| } | |
| else /* hide it */ | |
| { | |
| fShowV = (style & WS_VSCROLL); | |
| style &= ~WS_VSCROLL; | |
| } | |
| if ( nBar == SB_VERT ) | |
| fShowH = FALSE; | |
| break; | |
| default: | |
| return FALSE; /* Nothing to do! */ | |
| } | |
| if( fShowH || fShowV ) /* frame has been changed, let the window redraw itself */ | |
| { | |
| WIN_SetStyle( hwnd, style ); | |
| SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | |
| | SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED ); | |
| return TRUE; | |
| } | |
| return FALSE; /* no frame changes */ | |
| } | |
| /************************************************************************* | |
| * ShowScrollBar (USER32.@) | |
| * | |
| * PARAMS | |
| * hwnd [I] Handle of window with scrollbar(s) | |
| * nBar [I] One of SB_HORZ, SB_VERT, or SB_CTL | |
| * fShow [I] TRUE = show, FALSE = hide | |
| * | |
| * RETURNS STD | |
| */ | |
| BOOL WINAPI ShowScrollBar(HWND hwnd, INT nBar, BOOL fShow) | |
| { | |
| SCROLL_ShowScrollBar( hwnd, nBar, (nBar == SB_VERT) ? 0 : fShow, | |
| (nBar == SB_HORZ) ? 0 : fShow ); | |
| return TRUE; | |
| } | |
| /************************************************************************* | |
| * EnableScrollBar (USER32.@) | |
| */ | |
| BOOL WINAPI EnableScrollBar( HWND hwnd, INT nBar, UINT flags ) | |
| { | |
| BOOL bFineWithMe; | |
| SCROLLBAR_INFO *infoPtr; | |
| TRACE("%p %d %d\n", hwnd, nBar, flags ); | |
| flags &= ESB_DISABLE_BOTH; | |
| if (nBar == SB_BOTH) | |
| { | |
| if (!(infoPtr = SCROLL_GetScrollBarInfo( 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_GetScrollBarInfo( hwnd, nBar ))) return FALSE; | |
| if (bFineWithMe && infoPtr->flags == flags) return FALSE; | |
| infoPtr->flags = flags; | |
| SCROLL_RefreshScrollBar( hwnd, nBar, TRUE, TRUE ); | |
| return TRUE; | |
| } |