Skip to content

W
wine-winehq
Commit 00e3435f authored by Dimitrie O. Paun's avatar Dimitrie O. Paun Committed by Alexandre Julliard
Browse files
Options

Separate range manipulation functions from selection ranges.

parent 764607d9
Hide whitespace changes
Inline Side-by-side
Showing with 148 additions and 141 deletions
dlls/comctl32/listview.c
View file @ 00e3435f
......@@ -1825,34 +1825,38 @@ static INT LISTVIEW_GetItemHeight(LISTVIEW_INFO *infoPtr)
}
#if 0
static void LISTVIEW_PrintSelectionRanges(LISTVIEW_INFO *infoPtr)
static void ranges_dump(HDPA ranges)
{
INT i;
ERR("Selections are:\n");
for (i = 0; i < infoPtr->hdpaSelectionRanges->nItemCount; i++)
for (i = 0; i < ranges->nItemCount; i++)
{
RANGE *selection = DPA_GetPtr(infoPtr->hdpaSelectionRanges, i);
RANGE *selection = DPA_GetPtr(ranges, i);
ERR(" [%d - %d]\n", selection->lower, selection->upper);
}
}
static void LISTVIEW_PrintSelectionRanges(LISTVIEW_INFO *infoPtr)
{
ranges_dump(infoPtr->hdpaSelectionRanges);
}
#endif
/***
* DESCRIPTION:
* A compare function for selection ranges
* A compare function for ranges
*
*PARAMETER(S)
* [I] range1 : pointer to selection range 1;
* [I] range2 : pointer to selection range 2;
* PARAMETER(S)
* [I] range1 : pointer to range 1;
* [I] range2 : pointer to range 2;
* [I] flags : flags
*
*RETURNS:
* RETURNS:
* >0 : if Item 1 > Item 2
* <0 : if Item 2 > Item 1
* 0 : if Item 1 == Item 2
*/
static INT CALLBACK LISTVIEW_CompareSelectionRanges(LPVOID range1, LPVOID range2, LPARAM flags)
static INT CALLBACK ranges_cmp(LPVOID range1, LPVOID range2, LPARAM flags)
{
if (((RANGE*)range1)->upper < ((RANGE*)range2)->lower)
return -1;
......@@ -1861,66 +1865,88 @@ static INT CALLBACK LISTVIEW_CompareSelectionRanges(LPVOID range1, LPVOID range2
return 0;
}
/***
* Helper function for LISTVIEW_AddSelectionRange, and LISTVIEW_SetItem.
*/
static BOOL add_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper, BOOL adj_sel_only)
static inline BOOL ranges_contain(HDPA ranges, INT nItem)
{
RANGE selection;
LVITEMW lvItem;
INT index, i;
RANGE srchrng = { nItem, nItem };
return DPA_Search(ranges, &srchrng, 0, ranges_cmp, 0, DPAS_SORTED) != -1;
}
static BOOL ranges_shift(HDPA ranges, INT nItem, INT delta)
{
RANGE srchrng, *chkrng;
INT index;
srchrng.upper = nItem;
srchrng.lower = nItem;
index = DPA_Search(ranges, &srchrng, 0, ranges_cmp, 0, DPAS_SORTED | DPAS_INSERTAFTER);
if (index == -1) return TRUE;
for (;index < ranges->nItemCount; index++)
{
chkrng = DPA_GetPtr(ranges, index);
if (chkrng->lower >= nItem && chkrng->lower + delta >= 0)
chkrng->lower += delta;
if (chkrng->upper >= nItem && chkrng->upper + delta >= 0)
chkrng->upper += delta;
}
return TRUE;
}
static BOOL ranges_add(HDPA ranges, INT lower, INT upper)
{
RANGE srchrgn;
INT index;
TRACE("range (%i - %i)\n", lower, upper);
/* try find overlapping selections first */
selection.lower = lower - 1;
selection.upper = upper + 1;
index = DPA_Search(infoPtr->hdpaSelectionRanges, &selection, 0,
LISTVIEW_CompareSelectionRanges, 0, 0);
/* try find overlapping regions first */
srchrgn.lower = lower - 1;
srchrgn.upper = upper + 1;
index = DPA_Search(ranges, &srchrgn, 0, ranges_cmp, 0, 0);
if (index == -1)
{
RANGE *newsel;
RANGE *newrgn;
/* create the brand new selection to insert */
newsel = (RANGE *)COMCTL32_Alloc(sizeof(RANGE));
if(!newsel) return FALSE;
newsel->lower = lower;
newsel->upper = upper;
/* create the brand new range to insert */
newrgn = (RANGE *)COMCTL32_Alloc(sizeof(RANGE));
if(!newrgn) return FALSE;
newrgn->lower = lower;
newrgn->upper = upper;
/* figure out where to insert it */
index = DPA_Search(infoPtr->hdpaSelectionRanges, newsel, 0,
LISTVIEW_CompareSelectionRanges, 0, DPAS_INSERTAFTER);
index = DPA_Search(ranges, newrgn, 0, ranges_cmp, 0, DPAS_INSERTAFTER);
if (index == -1) index = 0;
/* and get it over with */
DPA_InsertPtr(infoPtr->hdpaSelectionRanges, index, newsel);
DPA_InsertPtr(ranges, index, newrgn);
}
else
{
RANGE *chksel, *mrgsel;
RANGE *chkrgn, *mrgrgn;
INT fromindex, mergeindex;
chksel = DPA_GetPtr(infoPtr->hdpaSelectionRanges, index);
if (!chksel) return FALSE;
chkrgn = DPA_GetPtr(ranges, index);
if (!chkrgn) return FALSE;
TRACE("Merge with index %i (%d - %d)\n",
index, chksel->lower, chksel->upper);
index, chkrgn->lower, chkrgn->upper);
chksel->lower = min(lower, chksel->lower);
chksel->upper = max(upper, chksel->upper);
chkrgn->lower = min(lower, chkrgn->lower);
chkrgn->upper = max(upper, chkrgn->upper);
TRACE("New range %i (%d - %d)\n",
index, chksel->lower, chksel->upper);
index, chkrgn->lower, chkrgn->upper);
/* merge now common selection ranges */
/* merge now common anges */
fromindex = 0;
selection.lower = chksel->lower - 1;
selection.upper = chksel->upper + 1;
srchrgn.lower = chkrgn->lower - 1;
srchrgn.upper = chkrgn->upper + 1;
do
{
mergeindex = DPA_Search(infoPtr->hdpaSelectionRanges, &selection, fromindex,
LISTVIEW_CompareSelectionRanges, 0, 0);
mergeindex = DPA_Search(ranges, &srchrgn, fromindex, ranges_cmp, 0, 0);
if (mergeindex == -1) break;
if (mergeindex == index)
{
......@@ -1930,111 +1956,124 @@ static BOOL add_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper, BO
TRACE("Merge with index %i\n", mergeindex);
mrgsel = DPA_GetPtr(infoPtr->hdpaSelectionRanges, mergeindex);
if (!mrgsel) return FALSE;
mrgrgn = DPA_GetPtr(ranges, mergeindex);
if (!mrgrgn) return FALSE;
chksel->lower = min(chksel->lower, mrgsel->lower);
chksel->upper = max(chksel->upper, mrgsel->upper);
COMCTL32_Free(mrgsel);
DPA_DeletePtr(infoPtr->hdpaSelectionRanges, mergeindex);
chkrgn->lower = min(chkrgn->lower, mrgrgn->lower);
chkrgn->upper = max(chkrgn->upper, mrgrgn->upper);
COMCTL32_Free(mrgrgn);
DPA_DeletePtr(ranges, mergeindex);
if (mergeindex < index) index --;
} while(1);
}
/*DPA_Sort(infoPtr->hdpaSelectionRanges, LISTVIEW_CompareSelectionRanges, 0);*/
if (adj_sel_only) return TRUE;
/* set the selection on items */
lvItem.state = LVIS_SELECTED;
lvItem.stateMask = LVIS_SELECTED;
for(i = lower; i <= upper; i++)
LISTVIEW_SetItemState(infoPtr, i, &lvItem);
return TRUE;
}
/***
* Helper function for LISTVIEW_RemoveSelectionRange, and LISTVIEW_SetItem.
*/
static BOOL remove_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper, BOOL adj_sel_only)
static BOOL ranges_del(HDPA ranges, INT lower, INT upper)
{
RANGE remsel, tmpsel, *chksel;
RANGE remrgn, tmprgn, *chkrgn;
BOOL done = FALSE;
LVITEMW lvItem;
INT index, i;
INT index;
lvItem.state = 0;
lvItem.stateMask = LVIS_SELECTED;
remsel.lower = lower;
remsel.upper = upper;
remrgn.lower = lower;
remrgn.upper = upper;
TRACE("range: (%d - %d)\n", remsel.lower, remsel.upper);
TRACE("range: (%d - %d)\n", remrgn.lower, remrgn.upper);
do
{
index = DPA_Search(infoPtr->hdpaSelectionRanges, &remsel, 0,
LISTVIEW_CompareSelectionRanges, 0, 0);
index = DPA_Search(ranges, &remrgn, 0, ranges_cmp, 0, 0);
if (index == -1) return TRUE;
chksel = DPA_GetPtr(infoPtr->hdpaSelectionRanges, index);
if (!chksel) return FALSE;
chkrgn = DPA_GetPtr(ranges, index);
if (!chkrgn) return FALSE;
TRACE("Matches range index %i (%d - %d)\n",
index, chksel->lower, chksel->upper);
index, chkrgn->lower, chkrgn->upper);
/* case 1: Same range */
if ( (chksel->upper == remsel.upper) &&
(chksel->lower == remsel.lower) )
if ( (chkrgn->upper == remrgn.upper) &&
(chkrgn->lower == remrgn.lower) )
{
DPA_DeletePtr(infoPtr->hdpaSelectionRanges, index);
DPA_DeletePtr(ranges, index);
done = TRUE;
}
/* case 2: engulf */
else if ( (chksel->upper <= remsel.upper) &&
(chksel->lower >= remsel.lower) )
else if ( (chkrgn->upper <= remrgn.upper) &&
(chkrgn->lower >= remrgn.lower) )
{
DPA_DeletePtr(infoPtr->hdpaSelectionRanges, index);
DPA_DeletePtr(ranges, index);
}
/* case 3: overlap upper */
else if ( (chksel->upper < remsel.upper) &&
(chksel->lower < remsel.lower) )
else if ( (chkrgn->upper < remrgn.upper) &&
(chkrgn->lower < remrgn.lower) )
{
chksel->upper = remsel.lower - 1;
chkrgn->upper = remrgn.lower - 1;
}
/* case 4: overlap lower */
else if ( (chksel->upper > remsel.upper) &&
(chksel->lower > remsel.lower) )
else if ( (chkrgn->upper > remrgn.upper) &&
(chkrgn->lower > remrgn.lower) )
{
chksel->lower = remsel.upper + 1;
chkrgn->lower = remrgn.upper + 1;
}
/* case 5: fully internal */
else
{
RANGE *newsel =
(RANGE *)COMCTL32_Alloc(sizeof(RANGE));
if (!newsel) return FALSE;
tmpsel = *chksel;
newsel->lower = chksel->lower;
newsel->upper = remsel.lower - 1;
chksel->lower = remsel.upper + 1;
DPA_InsertPtr(infoPtr->hdpaSelectionRanges, index, newsel);
/*DPA_Sort(infoPtr->hdpaSelectionRanges, LISTVIEW_CompareSelectionRanges, 0);*/
chksel = &tmpsel;
RANGE *newrgn = (RANGE *)COMCTL32_Alloc(sizeof(RANGE));
if (!newrgn) return FALSE;
tmprgn = *chkrgn;
newrgn->lower = chkrgn->lower;
newrgn->upper = remrgn.lower - 1;
chkrgn->lower = remrgn.upper + 1;
DPA_InsertPtr(ranges, index, newrgn);
chkrgn = &tmprgn;
}
if (adj_sel_only) continue;
/* here, chksel holds the selection to delete */
for (i = chksel->lower; i <= chksel->upper; i++)
LISTVIEW_SetItemState(infoPtr, i, &lvItem);
}
while(!done);
return TRUE;
}
/***
* Helper function for LISTVIEW_RemoveSelectionRange, and LISTVIEW_SetItem.
*/
static BOOL remove_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper, BOOL adj_sel_only)
{
LVITEMW lvItem;
INT i;
if (!ranges_del(infoPtr->hdpaSelectionRanges, lower, upper)) return FALSE;
if (adj_sel_only) return TRUE;
/* reset the selection on items */
lvItem.state = 0;
lvItem.stateMask = LVIS_SELECTED;
for(i = lower; i <= upper; i++)
LISTVIEW_SetItemState(infoPtr, i, &lvItem);
return TRUE;
}
/***
* Helper function for LISTVIEW_AddSelectionRange, and LISTVIEW_SetItem.
*/
static BOOL add_selection_range(LISTVIEW_INFO *infoPtr, INT lower, INT upper, BOOL adj_sel_only)
{
LVITEMW lvItem;
INT i;
if (!ranges_add(infoPtr->hdpaSelectionRanges, lower, upper)) return FALSE;
if (adj_sel_only) return TRUE;
/* set the selection on items */
lvItem.state = LVIS_SELECTED;
lvItem.stateMask = LVIS_SELECTED;
for(i = lower; i <= upper; i++)
LISTVIEW_SetItemState(infoPtr, i, &lvItem);
return TRUE;
}
/**
* DESCRIPTION:
* Adds a selection range.
......@@ -2178,29 +2217,9 @@ static inline BOOL LISTVIEW_SetItemFocus(LISTVIEW_INFO *infoPtr, INT nItem)
*/
static void LISTVIEW_ShiftIndices(LISTVIEW_INFO *infoPtr, INT nItem, INT direction)
{
RANGE selection,*checkselection;
INT index;
TRACE("Shifting %iu, %i steps\n", nItem, direction);
TRACE("Shifting %iu, %i steps\n",nItem,direction);
selection.upper = nItem;
selection.lower = nItem;
index = DPA_Search(infoPtr->hdpaSelectionRanges, &selection, 0,
LISTVIEW_CompareSelectionRanges,
0,DPAS_SORTED|DPAS_INSERTAFTER);
while ((index < infoPtr->hdpaSelectionRanges->nItemCount)&&(index != -1))
{
checkselection = DPA_GetPtr(infoPtr->hdpaSelectionRanges,index);
if ((checkselection->lower >= nItem)&&
((int)(checkselection->lower + direction) >= 0))
checkselection->lower += direction;
if ((checkselection->upper >= nItem)&&
((int)(checkselection->upper + direction) >= 0))
checkselection->upper += direction;
index ++;
}
ranges_shift(infoPtr->hdpaSelectionRanges, nItem, direction);
/* Note that the following will fail if direction != +1 and -1 */
if (infoPtr->nSelectionMark > nItem)
......@@ -4750,18 +4769,6 @@ static LRESULT LISTVIEW_GetImageList(LISTVIEW_INFO *infoPtr, INT nImageList)
/* LISTVIEW_GetISearchString */
/***
* Helper function for LISTVIEW_GetItemT *only*. Tests if an item is selected.
* It is important that no other functions call this because of callbacks.
*/
static inline BOOL is_item_selected(LISTVIEW_INFO *infoPtr, INT nItem)
{
RANGE selection = { nItem, nItem };
return DPA_Search(infoPtr->hdpaSelectionRanges, &selection, 0,
LISTVIEW_CompareSelectionRanges, 0, DPAS_SORTED) != -1;
}
/***
* DESCRIPTION:
* Retrieves item attributes.
*
......@@ -4863,7 +4870,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if ( lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_SELECTED )
{
lpLVItem->state &= ~LVIS_SELECTED;
if (is_item_selected(infoPtr, lpLVItem->iItem))
if (ranges_contain(infoPtr->hdpaSelectionRanges, lpLVItem->iItem))
lpLVItem->state |= LVIS_SELECTED;
}
......@@ -4972,7 +4979,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if ( lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_SELECTED )
{
lpLVItem->state &= ~LVIS_SELECTED;
if (is_item_selected(infoPtr, lpLVItem->iItem))
if (ranges_contain(infoPtr->hdpaSelectionRanges, lpLVItem->iItem))
lpLVItem->state |= LVIS_SELECTED;
}
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment