forked from Mirrors/wine-wine
Rework SetItemPosition, bunch of bugs squashed in the process.
Complete icon alignment rewrite: cleaner, incremental, etc. Completely avoid aligning all icons on every insert - icon placement is incrementally computed now: it's fast. Small cleanups, docs update, etc.oldstable
Dimitrie O. Paun
Alexandre Julliard
parent
c5e2731939
commit
c5da549d10
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@ -38,6 +38,7 @@
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* -- tilemode
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* -- groups
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* -- FIXMEs (search for them)
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* -- LVA_SNAPTOGRID not implemented
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*
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* States
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* -- LVIS_ACTIVATING (not currently supported by comctl32.dll version 6.0)
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@ -233,6 +234,7 @@ typedef struct tagLISTVIEW_INFO
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HDPA hdpaPosX; /* maintains the (X, Y) coordinates of the */
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HDPA hdpaPosY; /* items in LVS_ICON, and LVS_SMALLICON modes */
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HDPA hdpaColumns; /* array of COLUMN_INFO pointers */
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POINT currIconPos; /* this is the position next icon will be placed */
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PFNLVCOMPARE pfnCompare;
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LPARAM lParamSort;
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HWND hwndEdit;
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@ -343,7 +345,6 @@ static void LISTVIEW_GetOrigin(LISTVIEW_INFO *, LPPOINT);
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static BOOL LISTVIEW_GetViewRect(LISTVIEW_INFO *, LPRECT);
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static void LISTVIEW_SetGroupSelection(LISTVIEW_INFO *, INT);
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static BOOL LISTVIEW_SetItemT(LISTVIEW_INFO *, LPLVITEMW, BOOL);
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static BOOL LISTVIEW_SetItemPosition(LISTVIEW_INFO *, INT, POINT);
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static void LISTVIEW_UpdateScroll(LISTVIEW_INFO *);
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static void LISTVIEW_SetSelection(LISTVIEW_INFO *, INT);
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static BOOL LISTVIEW_UpdateSize(LISTVIEW_INFO *);
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@ -1902,9 +1903,10 @@ static void LISTVIEW_GetItemBox(LISTVIEW_INFO *infoPtr, INT nItem, LPRECT lprcBo
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OffsetRect(lprcBox, Position.x + Origin.x, Position.y + Origin.y);
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}
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/***
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* DESCRIPTION:
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* Aligns the items with the top edge of the window.
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* Resets the current position to the origin.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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@ -1912,109 +1914,160 @@ static void LISTVIEW_GetItemBox(LISTVIEW_INFO *infoPtr, INT nItem, LPRECT lprcBo
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* RETURN:
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* None
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*/
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static void LISTVIEW_AlignTop(LISTVIEW_INFO *infoPtr)
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static inline void LISTVIEW_ResetCurrentPosition(LISTVIEW_INFO *infoPtr)
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{
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UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
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INT nListWidth = infoPtr->rcList.right - infoPtr->rcList.left;
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POINT ptItem;
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INT i, off_x=0, off_y=0;
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if ((uView == LVS_SMALLICON) || (uView == LVS_ICON))
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{
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/* Since SetItemPosition uses upper-left of icon, and for
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style=LVS_ICON the icon is not left adjusted, get the offset */
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if (uView == LVS_ICON)
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{
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off_y = ICON_TOP_PADDING;
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off_x = (infoPtr->iconSpacing.cx - infoPtr->iconSize.cx) / 2;
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}
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ptItem.x = off_x;
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ptItem.y = off_y;
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TRACE("Icon off.x=%d, off.y=%d, left=%d, right=%d\n",
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off_x, off_y,
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infoPtr->rcList.left, infoPtr->rcList.right);
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if (nListWidth > infoPtr->nItemWidth)
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{
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for (i = 0; i < infoPtr->nItemCount; i++)
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{
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if ((ptItem.x-off_x) + infoPtr->nItemWidth > nListWidth)
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{
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ptItem.x = off_x;
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ptItem.y += infoPtr->nItemHeight;
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}
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LISTVIEW_SetItemPosition(infoPtr, i, ptItem);
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ptItem.x += infoPtr->nItemWidth;
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}
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}
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else
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{
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for (i = 0; i < infoPtr->nItemCount; i++)
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{
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LISTVIEW_SetItemPosition(infoPtr, i, ptItem);
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ptItem.y += infoPtr->nItemHeight;
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}
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}
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}
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infoPtr->currIconPos.x = infoPtr->currIconPos.y = 0;
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}
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/***
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* DESCRIPTION:
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* Aligns the items with the left edge of the window.
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* Returns the current icon position, and advances it along the top.
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* The returned position is not offset by Origin.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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* [O] lpPos : will get the current icon position
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*
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* RETURN:
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* None
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*/
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static void LISTVIEW_AlignLeft(LISTVIEW_INFO *infoPtr)
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static void LISTVIEW_NextIconPosTop(LISTVIEW_INFO *infoPtr, LPPOINT lpPos)
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{
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UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
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INT nListHeight = infoPtr->rcList.bottom - infoPtr->rcList.top;
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POINT ptItem;
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INT i, off_x=0, off_y=0;
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INT nListWidth = infoPtr->rcList.right - infoPtr->rcList.left;
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*lpPos = infoPtr->currIconPos;
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infoPtr->currIconPos.x += infoPtr->nItemWidth;
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if (infoPtr->currIconPos.x + infoPtr->nItemWidth <= nListWidth) return;
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if ((uView == LVS_SMALLICON) || (uView == LVS_ICON))
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{
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/* Since SetItemPosition uses upper-left of icon, and for
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style=LVS_ICON the icon is not left adjusted, get the offset */
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if (uView == LVS_ICON)
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{
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off_y = ICON_TOP_PADDING;
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off_x = (infoPtr->iconSpacing.cx - infoPtr->iconSize.cx) / 2;
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}
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ptItem.x = off_x;
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ptItem.y = off_y;
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TRACE("Icon off.x=%d, off.y=%d\n", off_x, off_y);
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if (nListHeight > infoPtr->nItemHeight)
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{
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for (i = 0; i < infoPtr->nItemCount; i++)
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{
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if (ptItem.y + infoPtr->nItemHeight > nListHeight)
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{
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ptItem.y = off_y;
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ptItem.x += infoPtr->nItemWidth;
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}
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LISTVIEW_SetItemPosition(infoPtr, i, ptItem);
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ptItem.y += infoPtr->nItemHeight;
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}
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}
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else
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{
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for (i = 0; i < infoPtr->nItemCount; i++)
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{
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LISTVIEW_SetItemPosition(infoPtr, i, ptItem);
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ptItem.x += infoPtr->nItemWidth;
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}
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}
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}
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infoPtr->currIconPos.x = 0;
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infoPtr->currIconPos.y += infoPtr->nItemHeight;
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}
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/***
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* DESCRIPTION:
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* Returns the current icon position, and advances it down the left edge.
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* The returned position is not offset by Origin.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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* [O] lpPos : will get the current icon position
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*
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* RETURN:
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* None
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*/
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static void LISTVIEW_NextIconPosLeft(LISTVIEW_INFO *infoPtr, LPPOINT lpPos)
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{
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INT nListHeight = infoPtr->rcList.bottom - infoPtr->rcList.top;
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*lpPos = infoPtr->currIconPos;
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infoPtr->currIconPos.y += infoPtr->nItemHeight;
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if (infoPtr->currIconPos.y + infoPtr->nItemHeight <= nListHeight) return;
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infoPtr->currIconPos.x += infoPtr->nItemWidth;
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infoPtr->currIconPos.y = 0;
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}
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/***
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* DESCRIPTION:
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* Moves an icon to the specified position.
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* It takes care of invalidating the item, etc.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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* [I] nItem : the item to move
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* [I] lpPos : the new icon position
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* [I] isNew : flags the item as being new
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*
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* RETURN:
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* Success: TRUE
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* Failure: FALSE
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*/
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static BOOL LISTVIEW_MoveIconTo(LISTVIEW_INFO *infoPtr, INT nItem, LPPOINT lppt, BOOL isNew)
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{
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POINT Origin, old;
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RECT rcItem;
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if (!isNew)
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{
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old.x = (LONG)DPA_GetPtr(infoPtr->hdpaPosX, nItem);
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old.y = (LONG)DPA_GetPtr(infoPtr->hdpaPosY, nItem);
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if (lppt->x == old.x && lppt->y == old.y) return TRUE;
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}
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/* Allocating a POINTER for every item is too resource intensive,
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* so we'll keep the (x,y) in different arrays */
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if (!DPA_SetPtr(infoPtr->hdpaPosX, nItem, (void *)lppt->x)) return FALSE;
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if (!DPA_SetPtr(infoPtr->hdpaPosY, nItem, (void *)lppt->y)) return FALSE;
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LISTVIEW_GetOrigin(infoPtr, &Origin);
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if (!isNew)
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{
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rcItem.left = old.x + Origin.x;
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rcItem.top = old.y + Origin.y;
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rcItem.right = rcItem.left + infoPtr->nItemWidth;
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rcItem.bottom = rcItem.top + infoPtr->nItemHeight;
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LISTVIEW_InvalidateRect(infoPtr, &rcItem);
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}
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rcItem.left = lppt->x + Origin.x;
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rcItem.top = lppt->y + Origin.y;
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rcItem.right = rcItem.left + infoPtr->nItemWidth;
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rcItem.bottom = rcItem.top + infoPtr->nItemHeight;
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LISTVIEW_InvalidateRect(infoPtr, &rcItem);
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return TRUE;
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}
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/***
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* DESCRIPTION:
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* Arranges listview items in icon display mode.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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* [I] nAlignCode : alignment code
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*
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* RETURN:
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* SUCCESS : TRUE
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* FAILURE : FALSE
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*/
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static BOOL LISTVIEW_Arrange(LISTVIEW_INFO *infoPtr, INT nAlignCode)
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{
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UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
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void (*next_pos)(LISTVIEW_INFO *, LPPOINT);
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POINT pos;
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INT i;
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if (uView != LVS_ICON && uView != LVS_SMALLICON) return FALSE;
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if (nAlignCode == LVA_DEFAULT)
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{
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if (infoPtr->dwStyle & LVS_ALIGNLEFT) nAlignCode = LVA_ALIGNLEFT;
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else nAlignCode = LVA_ALIGNTOP;
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}
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switch (nAlignCode)
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{
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case LVA_ALIGNLEFT: next_pos = LISTVIEW_NextIconPosLeft; break;
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case LVA_ALIGNTOP: next_pos = LISTVIEW_NextIconPosTop; break;
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case LVA_SNAPTOGRID: next_pos = LISTVIEW_NextIconPosTop; break; /* FIXME */
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default: return FALSE;
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}
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LISTVIEW_ResetCurrentPosition(infoPtr);
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for (i = 0; i < infoPtr->nItemCount; i++)
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{
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next_pos(infoPtr, &pos);
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LISTVIEW_MoveIconTo(infoPtr, i, &pos, FALSE);
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}
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return TRUE;
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}
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/***
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* DESCRIPTION:
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* Retrieves the bounding rectangle of all the items, not offset by Origin.
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@ -3774,40 +3827,6 @@ static DWORD LISTVIEW_ApproximateViewRect(LISTVIEW_INFO *infoPtr, INT nItemCount
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return dwViewRect;
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}
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/***
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* DESCRIPTION:
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* Arranges listview items in icon display mode.
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*
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* PARAMETER(S):
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* [I] infoPtr : valid pointer to the listview structure
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* [I] nAlignCode : alignment code
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*
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* RETURN:
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* SUCCESS : TRUE
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* FAILURE : FALSE
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*/
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static BOOL LISTVIEW_Arrange(LISTVIEW_INFO *infoPtr, INT nAlignCode)
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{
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UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
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if (uView != LVS_ICON && uView != LVS_SMALLICON) return FALSE;
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if (nAlignCode == LVA_DEFAULT)
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{
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if (infoPtr->dwStyle & LVS_ALIGNLEFT) nAlignCode = LVA_ALIGNLEFT;
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else nAlignCode = LVA_ALIGNTOP;
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}
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switch (nAlignCode)
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{
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case LVA_ALIGNLEFT: LISTVIEW_AlignLeft(infoPtr); return TRUE;
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case LVA_ALIGNTOP: LISTVIEW_AlignTop(infoPtr); return TRUE;
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case LVA_SNAPTOGRID: FIXME("LVA_SNAPTOGRID: not implemented\n"); break;
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}
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return FALSE;
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}
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/* << LISTVIEW_CreateDragImage >> */
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@ -5727,12 +5746,14 @@ static INT LISTVIEW_InsertItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL
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/* align items (set position of each item) */
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if ((uView == LVS_SMALLICON || uView == LVS_ICON))
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{
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RECT rcBox;
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/* FIXME: compute X, Y here, inline */
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/*if (is_icon && (infoPtr->dwStyle & LVS_AUTOARRANGE))*/
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LISTVIEW_Arrange(infoPtr, LVA_DEFAULT);
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LISTVIEW_GetItemBox(infoPtr, nItem, &rcBox);
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LISTVIEW_InvalidateRect(infoPtr, &rcBox);
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POINT pt;
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if (infoPtr->dwStyle & LVS_ALIGNLEFT)
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LISTVIEW_NextIconPosLeft(infoPtr, &pt);
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else
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LISTVIEW_NextIconPosTop(infoPtr, &pt);
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LISTVIEW_MoveIconTo(infoPtr, nItem, &pt, TRUE);
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}
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/* now is the invalidation fun */
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@ -6516,42 +6537,30 @@ static BOOL LISTVIEW_SetItemCount(LISTVIEW_INFO *infoPtr, INT nItems, DWORD dwFl
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static BOOL LISTVIEW_SetItemPosition(LISTVIEW_INFO *infoPtr, INT nItem, POINT pt)
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{
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UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
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POINT old;
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POINT Origin;
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TRACE("(nItem=%d, &pt=%s\n", nItem, debugpoint(&pt));
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if (nItem < 0 || nItem >= infoPtr->nItemCount ||
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!(uView == LVS_ICON || uView == LVS_SMALLICON)) return FALSE;
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LISTVIEW_GetOrigin(infoPtr, &Origin);
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/* This point value seems to be an undocumented feature.
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* The best guess is that it means either at the origin,
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* or at true beginning of the list. I will assume the origin. */
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if ((pt.x == -1) && (pt.y == -1))
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LISTVIEW_GetOrigin(infoPtr, &pt);
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else if (uView == LVS_ICON)
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pt = Origin;
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if (uView == LVS_ICON)
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{
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pt.x -= (infoPtr->nItemWidth - infoPtr->iconSize.cx) / 2;
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pt.y -= ICON_TOP_PADDING;
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}
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pt.x -= Origin.x;
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pt.y -= Origin.y;
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/* save the old position */
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old.x = (LONG)DPA_GetPtr(infoPtr->hdpaPosX, nItem);
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old.y = (LONG)DPA_GetPtr(infoPtr->hdpaPosY, nItem);
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/* Is the position changing? */
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if (pt.x == old.x && pt.y == old.y) return TRUE;
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/* FIXME: shouldn't we invalidate, as the item moved? */
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/* Allocating a POINTER for every item is too resource intensive,
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* so we'll keep the (x,y) in different arrays */
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if (DPA_SetPtr(infoPtr->hdpaPosX, nItem, (void *)pt.x) &&
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DPA_SetPtr(infoPtr->hdpaPosY, nItem, (void *)pt.y) )
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return TRUE;
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ERR("We should never fail here (nItem=%d, pt=%s), please report.\n",
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nItem, debugpoint(&pt));
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return FALSE;
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return LISTVIEW_MoveIconTo(infoPtr, nItem, &pt, FALSE);
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}
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/***
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@ -6794,9 +6803,6 @@ static BOOL LISTVIEW_SortItems(LISTVIEW_INFO *infoPtr, PFNLVCOMPARE pfnCompare,
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infoPtr->nSelectionMark = DPA_GetPtrIndex(infoPtr->hdpaItems, selectionMarkItem);
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/* I believe nHotItem should be left alone, see LISTVIEW_ShiftIndices */
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/* align the items */
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LISTVIEW_AlignTop(infoPtr);
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/* refresh the display */
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if (uView != LVS_ICON && uView != LVS_SMALLICON)
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LISTVIEW_InvalidateList(infoPtr);
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