Nikolay Sivov : comctl32/listview: Implement dragging with right button with a message loop.
Module: wine Branch: master Commit: 500da7def68934d2e2d74e611bb6cce77d59d60e URL: http://source.winehq.org/git/wine.git/?a=commit;h=500da7def68934d2e2d74e611b...
Author: Nikolay Sivov nsivov@codeweavers.com Date: Mon Jan 28 07:56:01 2013 +0400
comctl32/listview: Implement dragging with right button with a message loop.
---
dlls/comctl32/listview.c | 186 ++++++++++++++++++++++++++-------------------- 1 files changed, 105 insertions(+), 81 deletions(-)
diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c index 49da83c..a87ab98 100644 --- a/dlls/comctl32/listview.c +++ b/dlls/comctl32/listview.c @@ -99,7 +99,6 @@ * -- LVN_GETINFOTIP * -- LVN_HOTTRACK * -- LVN_SETDISPINFO - * -- LVN_BEGINRDRAG * * Messages: * -- LVM_ENABLEGROUPVIEW @@ -325,7 +324,6 @@ typedef struct tagLISTVIEW_INFO
/* mouse operation */ BOOL bLButtonDown; - BOOL bRButtonDown; BOOL bDragging; POINT ptClickPos; /* point where the user clicked */ INT nLButtonDownItem; /* tracks item to reset multiselection on WM_LBUTTONUP */ @@ -3984,17 +3982,23 @@ static VOID CALLBACK LISTVIEW_ScrollTimer(HWND hWnd, UINT uMsg, UINT_PTR idEvent */ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, INT y) { + LVHITTESTINFO ht; + RECT rect; + POINT pt; + if (!(fwKeys & MK_LBUTTON)) infoPtr->bLButtonDown = FALSE;
if (infoPtr->bLButtonDown) { - POINT tmp; - RECT rect; - LVHITTESTINFO lvHitTestInfo; - WORD wDragWidth = GetSystemMetrics(SM_CXDRAG); - WORD wDragHeight= GetSystemMetrics(SM_CYDRAG); + rect.left = rect.right = infoPtr->ptClickPos.x; + rect.top = rect.bottom = infoPtr->ptClickPos.y;
+ InflateRect(&rect, GetSystemMetrics(SM_CXDRAG), GetSystemMetrics(SM_CYDRAG)); + } + + if (infoPtr->bLButtonDown) + { if (infoPtr->bMarqueeSelect) { POINT coords_orig; @@ -4037,22 +4041,17 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN return 0; }
- rect.left = infoPtr->ptClickPos.x - wDragWidth; - rect.right = infoPtr->ptClickPos.x + wDragWidth; - rect.top = infoPtr->ptClickPos.y - wDragHeight; - rect.bottom = infoPtr->ptClickPos.y + wDragHeight; - - tmp.x = x; - tmp.y = y; + pt.x = x; + pt.y = y;
- lvHitTestInfo.pt = tmp; - LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE); + ht.pt = pt; + LISTVIEW_HitTest(infoPtr, &ht, TRUE, TRUE);
/* reset item marker */ - if (infoPtr->nLButtonDownItem != lvHitTestInfo.iItem) + if (infoPtr->nLButtonDownItem != ht.iItem) infoPtr->nLButtonDownItem = -1;
- if (!PtInRect(&rect, tmp)) + if (!PtInRect(&rect, pt)) { /* this path covers the following: 1. WM_LBUTTONDOWN over selected item (sets focus on it) @@ -4072,12 +4071,12 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN
if (!infoPtr->bDragging) { - lvHitTestInfo.pt = infoPtr->ptClickPos; - LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE); + ht.pt = infoPtr->ptClickPos; + LISTVIEW_HitTest(infoPtr, &ht, TRUE, TRUE);
/* If the click is outside the range of an item, begin a highlight. If not, begin an item drag. */ - if (lvHitTestInfo.iItem == -1) + if (ht.iItem == -1) { NMHDR hdr;
@@ -4102,7 +4101,7 @@ static LRESULT LISTVIEW_MouseMove(LISTVIEW_INFO *infoPtr, WORD fwKeys, INT x, IN NMLISTVIEW nmlv;
ZeroMemory(&nmlv, sizeof(nmlv)); - nmlv.iItem = lvHitTestInfo.iItem; + nmlv.iItem = ht.iItem; nmlv.ptAction = infoPtr->ptClickPos;
notify_listview(infoPtr, LVN_BEGINDRAG, &nmlv); @@ -10015,6 +10014,52 @@ static LRESULT LISTVIEW_LButtonDblClk(LISTVIEW_INFO *infoPtr, WORD wKey, INT x, return 0; }
+static LRESULT LISTVIEW_TrackMouse(const LISTVIEW_INFO *infoPtr, POINT pt) +{ + MSG msg; + RECT r; + + r.top = r.bottom = pt.y; + r.left = r.right = pt.x; + + InflateRect(&r, GetSystemMetrics(SM_CXDRAG), GetSystemMetrics(SM_CYDRAG)); + + SetCapture(infoPtr->hwndSelf); + + while (1) + { + if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD)) + { + if (msg.message == WM_MOUSEMOVE) + { + pt.x = (short)LOWORD(msg.lParam); + pt.y = (short)HIWORD(msg.lParam); + if (PtInRect(&r, pt)) + continue; + else + { + ReleaseCapture(); + return 1; + } + } + else if (msg.message >= WM_LBUTTONDOWN && + msg.message <= WM_RBUTTONDBLCLK) + { + break; + } + + DispatchMessageW(&msg); + } + + if (GetCapture() != infoPtr->hwndSelf) + return 0; + } + + ReleaseCapture(); + return 0; +} + + /*** * DESCRIPTION: * Processes mouse down messages (left mouse button). @@ -10619,94 +10664,76 @@ static LRESULT LISTVIEW_RButtonDblClk(const LISTVIEW_INFO *infoPtr, WORD wKey, I
/*** * DESCRIPTION: - * Processes mouse down messages (right mouse button). + * Processes WM_RBUTTONDOWN message and corresponding drag operation. * * PARAMETER(S): * [I] infoPtr : valid pointer to the listview structure * [I] wKey : key flag - * [I] x,y : mouse coordinate + * [I] x, y : mouse coordinate * * RETURN: * Zero */ static LRESULT LISTVIEW_RButtonDown(LISTVIEW_INFO *infoPtr, WORD wKey, INT x, INT y) { - LVHITTESTINFO lvHitTestInfo; - INT nItem; + LVHITTESTINFO ht; + INT item;
- TRACE("(key=%hu,X=%u,Y=%u)\n", wKey, x, y); + TRACE("(key=%hu, x=%d, y=%d)\n", wKey, x, y);
/* send NM_RELEASEDCAPTURE notification */ if (!notify(infoPtr, NM_RELEASEDCAPTURE)) return 0;
+ /* determine the index of the selected item */ + ht.pt.x = x; + ht.pt.y = y; + item = LISTVIEW_HitTest(infoPtr, &ht, TRUE, TRUE); + /* make sure the listview control window has the focus */ if (!infoPtr->bFocus) SetFocus(infoPtr->hwndSelf);
- /* set right button down flag */ - infoPtr->bRButtonDown = TRUE; - - /* determine the index of the selected item */ - lvHitTestInfo.pt.x = x; - lvHitTestInfo.pt.y = y; - nItem = LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE); - - if ((nItem >= 0) && (nItem < infoPtr->nItemCount)) + if ((item >= 0) && (item < infoPtr->nItemCount)) { - LISTVIEW_SetItemFocus(infoPtr, nItem); + LISTVIEW_SetItemFocus(infoPtr, item); if (!((wKey & MK_SHIFT) || (wKey & MK_CONTROL)) && - !LISTVIEW_GetItemState(infoPtr, nItem, LVIS_SELECTED)) - LISTVIEW_SetSelection(infoPtr, nItem); + !LISTVIEW_GetItemState(infoPtr, item, LVIS_SELECTED)) + LISTVIEW_SetSelection(infoPtr, item); } else - { LISTVIEW_DeselectAll(infoPtr); - } - - return 0; -} - -/*** - * DESCRIPTION: - * Processes mouse up messages (right mouse button). - * - * PARAMETER(S): - * [I] infoPtr : valid pointer to the listview structure - * [I] wKey : key flag - * [I] x,y : mouse coordinate - * - * RETURN: - * Zero - */ -static LRESULT LISTVIEW_RButtonUp(LISTVIEW_INFO *infoPtr, WORD wKey, INT x, INT y) -{ - LVHITTESTINFO lvHitTestInfo; - POINT pt;
- TRACE("(key=%hu,X=%u,Y=%u)\n", wKey, x, y); + if (LISTVIEW_TrackMouse(infoPtr, ht.pt)) + { + if (ht.iItem != -1) + { + NMLISTVIEW nmlv;
- if (!infoPtr->bRButtonDown) return 0; - - /* set button flag */ - infoPtr->bRButtonDown = FALSE; + memset(&nmlv, 0, sizeof(nmlv)); + nmlv.iItem = ht.iItem; + nmlv.ptAction = ht.pt;
- /* Send NM_RCLICK notification */ - lvHitTestInfo.pt.x = x; - lvHitTestInfo.pt.y = y; - LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, FALSE); - if (!notify_click(infoPtr, NM_RCLICK, &lvHitTestInfo)) return 0; + notify_listview(infoPtr, LVN_BEGINRDRAG, &nmlv); + } + } + else + { + SetFocus(infoPtr->hwndSelf);
- /* Change to screen coordinate for WM_CONTEXTMENU */ - pt = lvHitTestInfo.pt; - ClientToScreen(infoPtr->hwndSelf, &pt); + ht.pt.x = x; + ht.pt.y = y; + LISTVIEW_HitTest(infoPtr, &ht, TRUE, FALSE);
- /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */ - SendMessageW(infoPtr->hwndSelf, WM_CONTEXTMENU, - (WPARAM)infoPtr->hwndSelf, MAKELPARAM(pt.x, pt.y)); + if (notify_click(infoPtr, NM_RCLICK, &ht)) + { + /* Send a WM_CONTEXTMENU message in response to the WM_RBUTTONUP */ + SendMessageW(infoPtr->hwndSelf, WM_CONTEXTMENU, + (WPARAM)infoPtr->hwndSelf, (LPARAM)GetMessagePos()); + } + }
return 0; }
- /*** * DESCRIPTION: * Sets the cursor. @@ -11600,9 +11627,6 @@ LISTVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) case WM_RBUTTONDOWN: return LISTVIEW_RButtonDown(infoPtr, (WORD)wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
- case WM_RBUTTONUP: - return LISTVIEW_RButtonUp(infoPtr, (WORD)wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam)); - case WM_SETCURSOR: return LISTVIEW_SetCursor(infoPtr, wParam, lParam);
-
Alexandre Julliard