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user32: Call SCROLL_DrawScrollBar() to draw arrows in SCROLL_HandleScrollEvent(). 

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>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zhiyi Zhang 2021-07-05 20:32:22 +08:00 committed by Alexandre Julliard
parent 5541cf32c5
commit b5abd53494
2 changed files with 24 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
dlls/user32/controls.h
View File

@ -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 */

33
dlls/user32/scroll.c
View File

@ -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;