So that SCROLL_DrawScrollBar() can eventually be hooked by a themed scroll bar drawing function and use a single function to draw scroll bars, instead of hooking multiple scroll bar drawing functions that draw different parts.
Signed-off-by: Zhiyi Zhang zzhang@codeweavers.com --- dlls/user32/controls.h | 15 ++++++++++++++- dlls/user32/scroll.c | 33 ++++++++++----------------------- 2 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/dlls/user32/controls.h b/dlls/user32/controls.h index 78b393fcddb..9bb6a0047d1 100644 --- a/dlls/user32/controls.h +++ b/dlls/user32/controls.h @@ -179,8 +179,21 @@ extern BOOL NC_DrawSysButton( HWND hwnd, HDC hdc, BOOL down ) DECLSPEC_HIDDEN; extern void NC_GetSysPopupPos( HWND hwnd, RECT* rect ) DECLSPEC_HIDDEN;
/* scrollbar */ + +/* 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 */ +}; + extern void SCROLL_DrawNCScrollBar( HWND hwnd, HDC hdc, BOOL draw_horizontal, BOOL draw_vertical ) DECLSPEC_HIDDEN; -extern void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, BOOL arrows, BOOL interior ) DECLSPEC_HIDDEN; +extern void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, enum SCROLL_HITTEST hit_test, + BOOL arrows, BOOL interior ) DECLSPEC_HIDDEN; extern void SCROLL_TrackScrollBar( HWND hwnd, INT scrollbar, POINT pt ) DECLSPEC_HIDDEN;
/* combo box */ diff --git a/dlls/user32/scroll.c b/dlls/user32/scroll.c index 5fc75ca42e7..01868bd4238 100644 --- a/dlls/user32/scroll.c +++ b/dlls/user32/scroll.c @@ -74,17 +74,6 @@ typedef struct /* 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 @@ -583,8 +572,8 @@ static void SCROLL_DrawInterior( HWND hwnd, HDC hdc, INT nBar, * * Redraw the whole scrollbar. */ -void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, - BOOL arrows, BOOL interior ) +void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, enum SCROLL_HITTEST hit_test, BOOL arrows, + BOOL interior ) { INT arrowSize, thumbSize, thumbPos; RECT rect; @@ -611,8 +600,8 @@ void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, { if( vertical == SCROLL_trackVertical && GetCapture() == hwnd ) SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, - (SCROLL_trackHitTest == SCROLL_TOP_ARROW), - (SCROLL_trackHitTest == SCROLL_BOTTOM_ARROW) ); + hit_test == SCROLL_trackHitTest && hit_test == SCROLL_TOP_ARROW, + hit_test == SCROLL_trackHitTest && hit_test == SCROLL_BOTTOM_ARROW ); else SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, FALSE, FALSE ); @@ -649,9 +638,9 @@ void SCROLL_DrawScrollBar( HWND hwnd, HDC hdc, INT nBar, void SCROLL_DrawNCScrollBar( HWND hwnd, HDC hdc, BOOL draw_horizontal, BOOL draw_vertical ) { if (draw_horizontal) - SCROLL_DrawScrollBar( hwnd, hdc, SB_HORZ, TRUE, TRUE ); + SCROLL_DrawScrollBar( hwnd, hdc, SB_HORZ, SCROLL_trackHitTest, TRUE, TRUE ); if (draw_vertical) - SCROLL_DrawScrollBar( hwnd, hdc, SB_VERT, TRUE, TRUE ); + SCROLL_DrawScrollBar( hwnd, hdc, SB_VERT, SCROLL_trackHitTest, TRUE, TRUE ); }
/*********************************************************************** @@ -684,7 +673,7 @@ static void SCROLL_RefreshScrollBar( HWND hwnd, INT nBar, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW) ); if (!hdc) return;
- SCROLL_DrawScrollBar( hwnd, hdc, nBar, arrows, interior ); + SCROLL_DrawScrollBar( hwnd, hdc, nBar, SCROLL_trackHitTest, arrows, interior ); ReleaseDC( hwnd, hdc ); }
@@ -831,8 +820,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt) break;
case SCROLL_TOP_ARROW: - SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, - (hittest == SCROLL_trackHitTest), FALSE ); + SCROLL_DrawScrollBar( hwnd, hdc, nBar, hittest, TRUE, FALSE ); if (hittest == SCROLL_trackHitTest) { if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) @@ -929,8 +917,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt) break;
case SCROLL_BOTTOM_ARROW: - SCROLL_DrawArrows( hdc, infoPtr, &rect, arrowSize, vertical, - FALSE, (hittest == SCROLL_trackHitTest) ); + SCROLL_DrawScrollBar( hwnd, hdc, nBar, hittest, TRUE, FALSE ); if (hittest == SCROLL_trackHitTest) { if ((msg == WM_LBUTTONDOWN) || (msg == WM_SYSTIMER)) @@ -1430,7 +1417,7 @@ LRESULT ScrollBarWndProc_common( HWND hwnd, UINT message, WPARAM wParam, LPARAM FillRect( hdc, &rc, GetSysColorBrush(COLOR_SCROLLBAR) ); } else - SCROLL_DrawScrollBar( hwnd, hdc, SB_CTL, TRUE, TRUE ); + SCROLL_DrawScrollBar( hwnd, hdc, SB_CTL, SCROLL_trackHitTest, TRUE, TRUE ); if (!wParam) EndPaint(hwnd, &ps); } break;